| /******************************************************************************* |
| * Copyright (c) 2000, 2018 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Stefan Xenos (Google) - bug 468854 - Add a requestLayout method to Control |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import java.lang.reflect.*; |
| import java.util.*; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.accessibility.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.cairo.*; |
| import org.eclipse.swt.internal.gtk.*; |
| import org.eclipse.swt.internal.gtk3.*; |
| import org.eclipse.swt.internal.gtk4.*; |
| |
| /** |
| * Control is the abstract superclass of all windowed user interface classes. |
| * <dl> |
| * <dt><b>Styles:</b> |
| * <dd>BORDER</dd> |
| * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT, FLIP_TEXT_DIRECTION</dd> |
| * <dt><b>Events:</b> |
| * <dd>DragDetect, FocusIn, FocusOut, Help, KeyDown, KeyUp, MenuDetect, MouseDoubleClick, MouseDown, MouseEnter, |
| * MouseExit, MouseHover, MouseUp, MouseMove, MouseWheel, MouseHorizontalWheel, MouseVerticalWheel, Move, |
| * Paint, Resize, Traverse</dd> |
| * </dl> |
| * <p> |
| * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified. |
| * </p><p> |
| * IMPORTANT: This class is intended to be subclassed <em>only</em> |
| * within the SWT implementation. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#control">Control snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public abstract class Control extends Widget implements Drawable { |
| |
| // allows to disable context menu entry for "insert emoji" |
| static final boolean DISABLE_EMOJI = Boolean.getBoolean("SWT_GTK_INPUT_HINT_NO_EMOJI"); |
| |
| long fixedHandle; |
| long redrawWindow, enableWindow, provider; |
| int drawCount, backgroundAlpha = 255; |
| long dragGesture, zoomGesture, rotateGesture, panGesture; |
| Composite parent; |
| Cursor cursor; |
| Menu menu; |
| Image backgroundImage; |
| Font font; |
| Region region; |
| long eventRegion; |
| /** |
| * The handle to the Region, which is neccessary in the case |
| * that <code>region</code> is disposed before this Control. |
| */ |
| long regionHandle; |
| String toolTipText; |
| Object layoutData; |
| Accessible accessible; |
| Control labelRelation; |
| String cssBackground, cssForeground = " "; |
| boolean drawRegion; |
| /** |
| * Cache the NO_BACKGROUND flag as it gets removed automatically in |
| * Composite. Only relevant for GTK3.10+ as we need it for Cairo setRegion() |
| * functionality. See bug 475784. |
| */ |
| boolean cachedNoBackground; |
| /** |
| * Point for storing the (x, y) coordinate of the last input (click/scroll/etc.). |
| * This is useful for checking input event coordinates in methods that act on input, |
| * but do not receive coordinates (like gtk_clicked, for example). See bug 529431. |
| */ |
| Point lastInput = new Point(0, 0); |
| |
| LinkedList <Event> dragDetectionQueue; |
| |
| static Callback gestureZoom, gestureRotation, gestureSwipe, gestureBegin, gestureEnd; |
| static { |
| gestureZoom = new Callback (Control.class, "magnifyProc", void.class, new Type[] { |
| long.class, double.class, long.class}); //$NON-NLS-1$ |
| gestureRotation = new Callback (Control.class, "rotateProc", void.class, new Type[] { |
| long.class, double.class, double.class, long.class}); //$NON-NLS-1$ |
| gestureSwipe = new Callback (Control.class, "swipeProc", void.class, new Type[] { |
| long.class, double.class, double.class, long.class}); //$NON-NLS-1$ |
| gestureBegin = new Callback (Control.class, "gestureBeginProc", void.class, new Type[] { |
| long.class, long.class, long.class}); //$NON-NLS-1$ |
| gestureEnd = new Callback (Control.class, "gestureEndProc", void.class, new Type[] { |
| long.class, long.class, long.class}); //$NON-NLS-1$ |
| } |
| /** |
| * Bug 541635, 515396: GTK Wayland only flag to keep track whether mouse |
| * is currently pressed or released for DND. |
| */ |
| static boolean mouseDown; |
| boolean dragBegun; |
| |
| /** |
| * Flag to check the scale factor upon the first drawing of this Control. |
| * This is done by checking the scale factor of the Cairo surface in gtk_draw(). |
| * |
| * Doing so provides an accurate scale factor, and will determine if this Control |
| * needs to be scaled manually by SWT. See bug 507020. |
| */ |
| boolean checkScaleFactor = true; |
| |
| /** |
| * True if GTK has autoscaled this Control, meaning SWT does not need to do any |
| * manual scaling. See bug 507020. |
| */ |
| boolean autoScale = true; |
| |
| Control () { |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#BORDER |
| * @see SWT#LEFT_TO_RIGHT |
| * @see SWT#RIGHT_TO_LEFT |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Control (Composite parent, int style) { |
| super (parent, style); |
| this.parent = parent; |
| createWidget (0); |
| } |
| |
| Font defaultFont () { |
| return display.getSystemFont (); |
| } |
| |
| GdkRGBA defaultBackground () { |
| return display.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND).handle; |
| } |
| |
| @Override |
| void deregister () { |
| super.deregister (); |
| if (fixedHandle != 0) display.removeWidget (fixedHandle); |
| long imHandle = imHandle (); |
| if (imHandle != 0) display.removeWidget (imHandle); |
| } |
| |
| void drawBackground (Control control, long gdkResource, long cr, int x, int y, int width, int height) { |
| long cairo = 0; |
| long region = 0; |
| if (GTK.GTK4) { |
| // TODO: once Eclipse runs on GTK4, check for bug 547466. |
| cairo = cr; |
| if (gdkResource != 0) { |
| cairo_rectangle_int_t regionRect = new cairo_rectangle_int_t (); |
| int [] fetchedHeight = new int [1]; |
| int [] fetchedWidth = new int [1]; |
| if (GTK.GTK4) { |
| gdk_surface_get_size(gdkResource, fetchedWidth, fetchedHeight); |
| } else { |
| gdk_window_get_size(gdkResource, fetchedWidth, fetchedHeight); |
| } |
| regionRect.x = 0; |
| regionRect.y = 0; |
| regionRect.width = fetchedWidth[0]; |
| regionRect.height = fetchedHeight[0]; |
| region = Cairo.cairo_region_create_rectangle(regionRect); |
| } |
| } else { |
| cairo = cr != 0 ? cr : GDK.gdk_cairo_create(gdkResource); |
| } |
| /* |
| * It's possible that a client is using an SWT.NO_BACKGROUND Composite with custom painting |
| * and a region to provide "overlay" functionality. In this case we don't want to paint |
| * any background color, as it will likely break desired behavior. The fix is to paint |
| * this Control as transparent. See bug 475784. |
| */ |
| boolean noBackgroundRegion = drawRegion && hooks(SWT.Paint) && cachedNoBackground; |
| if (cairo == 0) error (SWT.ERROR_NO_HANDLES); |
| if (region != 0) { |
| GDK.gdk_cairo_region(cairo, region); |
| Cairo.cairo_clip(cairo); |
| } |
| if (control.backgroundImage != null) { |
| Point pt = display.mapInPixels (this, control, 0, 0); |
| Cairo.cairo_translate (cairo, -pt.x, -pt.y); |
| x += pt.x; |
| y += pt.y; |
| long pattern = Cairo.cairo_pattern_create_for_surface (control.backgroundImage.surface); |
| if (pattern == 0) error (SWT.ERROR_NO_HANDLES); |
| Cairo.cairo_pattern_set_extend (pattern, Cairo.CAIRO_EXTEND_REPEAT); |
| if ((style & SWT.MIRRORED) != 0) { |
| double[] matrix = {-1, 0, 0, 1, 0, 0}; |
| Cairo.cairo_pattern_set_matrix(pattern, matrix); |
| } |
| Cairo.cairo_set_source (cairo, pattern); |
| Cairo.cairo_pattern_destroy (pattern); |
| } else { |
| GdkRGBA rgba = control.getBackgroundGdkRGBA(); |
| if (noBackgroundRegion) { |
| Cairo.cairo_set_source_rgba (cairo, 0.0, 0.0, 0.0, 0.0); |
| } else { |
| Cairo.cairo_set_source_rgba (cairo, rgba.red, rgba.green, rgba.blue, rgba.alpha); |
| } |
| } |
| Cairo.cairo_rectangle (cairo, x, y, width, height); |
| Cairo.cairo_fill (cairo); |
| if (!GTK.GTK4 ) { |
| if (cairo != cr) Cairo.cairo_destroy(cairo); |
| } |
| } |
| |
| boolean drawGripper (GC gc, int x, int y, int width, int height, boolean vertical) { |
| long paintHandle = paintHandle (); |
| long gdkResource = GTK.GTK4? gtk_widget_get_surface(paintHandle) : gtk_widget_get_window (paintHandle); |
| if (gdkResource == 0) return false; |
| if ((style & SWT.MIRRORED) != 0) x = getClientWidth () - width - x; |
| long context = GTK.gtk_widget_get_style_context (paintHandle); |
| GTK.gtk_style_context_save (context); |
| GTK.gtk_style_context_add_class (context, GTK.GTK_STYLE_CLASS_PANE_SEPARATOR); |
| GTK.gtk_style_context_set_state (context, GTK.GTK_STATE_FLAG_NORMAL); |
| GTK.gtk_render_handle (context, gc.handle, x, y, width, height); |
| GTK.gtk_style_context_restore (context); |
| return true; |
| } |
| |
| void drawWidget (GC gc) { |
| } |
| |
| void enableWidget (boolean enabled) { |
| GTK.gtk_widget_set_sensitive (handle, enabled); |
| } |
| |
| long enterExitHandle () { |
| return eventHandle (); |
| } |
| |
| long eventHandle () { |
| return handle; |
| } |
| |
| long eventWindow () { |
| long eventHandle = eventHandle (); |
| GTK.gtk_widget_realize (eventHandle); |
| return gtk_widget_get_window (eventHandle); |
| } |
| |
| long eventSurface () { |
| long eventHandle = eventHandle (); |
| GTK.gtk_widget_realize (eventHandle); |
| return gtk_widget_get_surface (eventHandle); |
| } |
| |
| /** |
| * GdkEventType constants different on GTK4 and GTK3. |
| * This checks for GTK versions and return the correct constants defined in GDK.java |
| * @param eventType |
| * @return constant defined |
| */ |
| static int fixGdkEventTypeValues(int eventType) { |
| if (GTK.GTK4) { |
| switch (eventType) { |
| case GDK.GDK4_EXPOSE: return GDK.GDK_EXPOSE; |
| case GDK.GDK4_MOTION_NOTIFY: return GDK.GDK_MOTION_NOTIFY; |
| case GDK.GDK4_BUTTON_PRESS: return GDK.GDK_BUTTON_PRESS; |
| case GDK.GDK4_BUTTON_RELEASE: return GDK.GDK_BUTTON_RELEASE; |
| case GDK.GDK4_KEY_PRESS: return GDK.GDK_KEY_PRESS; |
| case GDK.GDK4_ENTER_NOTIFY: return GDK.GDK_ENTER_NOTIFY; |
| case GDK.GDK4_LEAVE_NOTIFY: return GDK.GDK_LEAVE_NOTIFY; |
| case GDK.GDK4_FOCUS_CHANGE: return GDK.GDK_FOCUS_CHANGE; |
| case GDK.GDK4_CONFIGURE: return GDK.GDK_CONFIGURE; |
| case GDK.GDK4_MAP: return GDK.GDK_MAP; |
| case GDK.GDK4_UNMAP: return GDK.GDK_UNMAP; |
| } |
| } |
| return eventType; |
| } |
| |
| void fixFocus (Control focusControl) { |
| Shell shell = getShell (); |
| Control control = this; |
| while (control != shell && (control = control.parent) != null) { |
| if (control.setFocus ()) return; |
| } |
| shell.setSavedFocus (focusControl); |
| long focusHandle = shell.vboxHandle; |
| GTK.gtk_widget_set_can_focus (focusHandle, true); |
| GTK.gtk_widget_grab_focus (focusHandle); |
| // widget could be disposed at this point |
| if (isDisposed ()) return; |
| GTK.gtk_widget_set_can_focus (focusHandle, false); |
| } |
| |
| void fixStyle () { |
| if (fixedHandle != 0) fixStyle (fixedHandle); |
| } |
| |
| void fixStyle (long handle) { |
| /* |
| * Feature in GTK. Some GTK themes apply a different background to |
| * the contents of a GtkNotebook. However, in an SWT TabFolder, the |
| * children are not parented below the GtkNotebook widget, and usually |
| * have their own GtkFixed. The fix is to look up the correct style |
| * for a child of a GtkNotebook and apply its background to any GtkFixed |
| * widgets that are direct children of an SWT TabFolder. |
| * |
| * Note that this has to be when the theme settings changes and that it |
| * should not override the application background. |
| */ |
| if ((state & BACKGROUND) != 0) return; |
| if ((state & THEME_BACKGROUND) == 0) return; |
| } |
| |
| long focusHandle () { |
| return handle; |
| } |
| |
| long fontHandle () { |
| return handle; |
| } |
| |
| long gestureHandle () { |
| return handle; |
| } |
| |
| /** |
| * Returns the orientation of the receiver, which will be one of the |
| * constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. |
| * |
| * @return the orientation style |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public int getOrientation () { |
| checkWidget(); |
| return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); |
| } |
| |
| /** |
| * Returns the text direction of the receiver, which will be one of the |
| * constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. |
| * |
| * @return the text direction style |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.102 |
| */ |
| public int getTextDirection() { |
| checkWidget (); |
| /* return the widget orientation */ |
| return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); |
| } |
| |
| boolean hasFocus () { |
| return this == display.getFocusControl(); |
| } |
| |
| @Override |
| void hookEvents () { |
| super.hookEvents(); |
| long focusHandle = focusHandle(); |
| hookKeyboardAndFocusSignals(focusHandle); |
| hookMouseSignals(eventHandle()); |
| hookWidgetSignals(focusHandle); |
| hookPaintSignals(); |
| connectIMSignals(); |
| |
| /*Connect gesture signals */ |
| setZoomGesture(); |
| setDragGesture(); |
| setRotateGesture(); |
| |
| long eventHandle = eventHandle (); |
| long blockHandle = fixedHandle != 0 ? fixedHandle : eventHandle; |
| /* |
| * Feature in GTK3. Events such as mouse move are propagate up |
| * the widget hierarchy and are seen by the parent. This is the |
| * correct GTK behavior but not correct for SWT. The fix is to |
| * hook a signal after and stop the propagation using a negative |
| * event number to distinguish this case. |
| * |
| * The signal is hooked to the fixedHandle to catch events sent to |
| * lightweight widgets. |
| * |
| * In GTK4, event propagation is set in the event controller |
| */ |
| if (!GTK.GTK4) { |
| OS.g_signal_connect_closure_by_id(blockHandle, display.signalIds[BUTTON_PRESS_EVENT], 0, display.getClosure(BUTTON_PRESS_EVENT_INVERSE), true); |
| OS.g_signal_connect_closure_by_id(blockHandle, display.signalIds[BUTTON_RELEASE_EVENT], 0, display.getClosure(BUTTON_RELEASE_EVENT_INVERSE), true); |
| OS.g_signal_connect_closure_by_id(blockHandle, display.signalIds[MOTION_NOTIFY_EVENT], 0, display.getClosure(MOTION_NOTIFY_EVENT_INVERSE), true); |
| } |
| |
| /* Connect the event_after signal for both key and mouse */ |
| if (GTK.GTK4) { |
| //TODO: GTK4 event-after |
| } else { |
| OS.g_signal_connect_closure_by_id(eventHandle, display.signalIds[EVENT_AFTER], 0, display.getClosure(EVENT_AFTER), false); |
| if (focusHandle != eventHandle) { |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[EVENT_AFTER], 0, display.getClosure(EVENT_AFTER), false); |
| } |
| } |
| } |
| |
| private void hookKeyboardAndFocusSignals(long focusHandle) { |
| if (GTK.GTK4) { |
| long keyController = GTK4.gtk_event_controller_key_new(); |
| GTK.gtk_event_controller_set_propagation_phase(keyController, GTK.GTK_PHASE_TARGET); |
| GTK4.gtk_widget_add_controller(focusHandle, keyController); |
| OS.g_signal_connect(keyController, OS.key_pressed, display.keyPressReleaseProc, KEY_PRESSED); |
| OS.g_signal_connect(keyController, OS.key_released, display.keyPressReleaseProc, KEY_RELEASED); |
| |
| long focusController = GTK4.gtk_event_controller_focus_new(); |
| GTK.gtk_event_controller_set_propagation_phase(focusController, GTK.GTK_PHASE_TARGET); |
| GTK4.gtk_widget_add_controller(focusHandle, focusController); |
| OS.g_signal_connect(focusController, OS.enter, display.focusProc, FOCUS_IN); |
| OS.g_signal_connect(focusController, OS.leave, display.focusProc, FOCUS_OUT); |
| } else { |
| int focusMask = GDK.GDK_KEY_PRESS_MASK | GDK.GDK_KEY_RELEASE_MASK | GDK.GDK_FOCUS_CHANGE_MASK; |
| GTK3.gtk_widget_add_events (focusHandle, focusMask); |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[KEY_PRESS_EVENT], 0, display.getClosure(KEY_PRESS_EVENT), false); |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[KEY_RELEASE_EVENT], 0, display.getClosure(KEY_RELEASE_EVENT), false); |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[FOCUS_IN_EVENT], 0, display.getClosure(FOCUS_IN_EVENT), false); |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[FOCUS_OUT_EVENT], 0, display.getClosure(FOCUS_OUT_EVENT), false); |
| } |
| } |
| |
| private void hookMouseSignals(long eventHandle) { |
| long enterExitHandle = enterExitHandle(); |
| |
| if (GTK.GTK4) { |
| long clickGesture = GTK4.gtk_gesture_click_new(); |
| GTK.gtk_gesture_single_set_button(clickGesture, 0); |
| GTK4.gtk_widget_add_controller(eventHandle, clickGesture); |
| OS.g_signal_connect(clickGesture, OS.pressed, display.gesturePressReleaseProc, GESTURE_PRESSED); |
| OS.g_signal_connect(clickGesture, OS.released, display.gesturePressReleaseProc, GESTURE_RELEASED); |
| |
| long scrollController = GTK4.gtk_event_controller_scroll_new(GTK.GTK_EVENT_CONTROLLER_SCROLL_BOTH_AXES); |
| GTK.gtk_event_controller_set_propagation_phase(scrollController, GTK.GTK_PHASE_TARGET); |
| GTK4.gtk_widget_add_controller(eventHandle, scrollController); |
| OS.g_signal_connect(scrollController, OS.scroll, display.enterMotionScrollProc, SCROLL); |
| |
| long motionController = GTK4.gtk_event_controller_motion_new(); |
| GTK.gtk_event_controller_set_propagation_phase(motionController, GTK.GTK_PHASE_TARGET); |
| GTK4.gtk_widget_add_controller(eventHandle, motionController); |
| OS.g_signal_connect(motionController, OS.motion, display.enterMotionScrollProc, MOTION); |
| |
| long enterExitController = GTK4.gtk_event_controller_motion_new(); |
| GTK.gtk_event_controller_set_propagation_phase(enterExitController, GTK.GTK_PHASE_TARGET); |
| GTK4.gtk_widget_add_controller(enterExitHandle, enterExitController); |
| OS.g_signal_connect(enterExitController, OS.enter, display.enterMotionScrollProc, ENTER); |
| OS.g_signal_connect(enterExitController, OS.leave, display.leaveProc, LEAVE); |
| } else { |
| int eventMask = GDK.GDK_POINTER_MOTION_MASK | GDK.GDK_BUTTON_PRESS_MASK | GDK.GDK_BUTTON_RELEASE_MASK | GDK.GDK_SCROLL_MASK | GDK.GDK_SMOOTH_SCROLL_MASK; |
| GTK3.gtk_widget_add_events (eventHandle, eventMask); |
| OS.g_signal_connect_closure_by_id(eventHandle, display.signalIds[MOTION_NOTIFY_EVENT], 0, display.getClosure(MOTION_NOTIFY_EVENT), false); |
| OS.g_signal_connect_closure_by_id(eventHandle, display.signalIds[BUTTON_PRESS_EVENT], 0, display.getClosure(BUTTON_PRESS_EVENT), false); |
| OS.g_signal_connect_closure_by_id(eventHandle, display.signalIds[BUTTON_RELEASE_EVENT], 0, display.getClosure(BUTTON_RELEASE_EVENT), false); |
| OS.g_signal_connect_closure_by_id(eventHandle, display.signalIds[SCROLL_EVENT], 0, display.getClosure(SCROLL_EVENT), false); |
| |
| int enterExitMask = GDK.GDK_ENTER_NOTIFY_MASK | GDK.GDK_LEAVE_NOTIFY_MASK; |
| GTK3.gtk_widget_add_events (enterExitHandle, enterExitMask); |
| OS.g_signal_connect_closure_by_id(enterExitHandle, display.signalIds[ENTER_NOTIFY_EVENT], 0, display.getClosure(ENTER_NOTIFY_EVENT), false); |
| OS.g_signal_connect_closure_by_id(enterExitHandle, display.signalIds[LEAVE_NOTIFY_EVENT], 0, display.getClosure(LEAVE_NOTIFY_EVENT), false); |
| } |
| } |
| |
| private void hookWidgetSignals(long focusHandle) { |
| OS.g_signal_connect_closure_by_id(handle, display.signalIds[REALIZE], 0, display.getClosure(REALIZE), true); |
| OS.g_signal_connect_closure_by_id(handle, display.signalIds[UNREALIZE], 0, display.getClosure(UNREALIZE), false); |
| |
| OS.g_signal_connect_closure_by_id(topHandle(), display.signalIds[MAP], 0, display.getClosure(MAP), true); |
| |
| if (!GTK.GTK4) { |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[POPUP_MENU], 0, display.getClosure(POPUP_MENU), false); |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[SHOW_HELP], 0, display.getClosure(SHOW_HELP), false); |
| OS.g_signal_connect_closure_by_id(focusHandle, display.signalIds[FOCUS], 0, display.getClosure(FOCUS), false); |
| } |
| } |
| |
| private void hookPaintSignals() { |
| long paintHandle = paintHandle(); |
| |
| if (GTK.GTK4) { |
| long widgetClass = GTK.GTK_WIDGET_GET_CLASS(paintHandle()); |
| GtkWidgetClass widgetClassStruct = new GtkWidgetClass(); |
| |
| OS.memmove(widgetClassStruct, widgetClass); |
| widgetClassStruct.snapshot = display.snapshotDrawProc; |
| OS.memmove(widgetClass, widgetClassStruct); |
| } else { |
| int paintMask = GDK.GDK_EXPOSURE_MASK; |
| GTK3.gtk_widget_add_events (paintHandle, paintMask); |
| OS.g_signal_connect_closure_by_id (paintHandle, display.signalIds [DRAW], 0, display.getClosure (EXPOSE_EVENT_INVERSE), false); |
| OS.g_signal_connect_closure_by_id (paintHandle, display.signalIds [DRAW], 0, display.getClosure (DRAW), true); |
| OS.g_signal_connect_closure_by_id (paintHandle, display.signalIds [STYLE_UPDATED], 0, display.getClosure (STYLE_UPDATED), false); |
| } |
| } |
| |
| private void connectIMSignals() { |
| long imHandle = imHandle(); |
| if (imHandle != 0) { |
| OS.g_signal_connect_closure(imHandle, OS.commit, display.getClosure(COMMIT), false); |
| OS.g_signal_connect_closure(imHandle, OS.preedit_changed, display.getClosure(PREEDIT_CHANGED), false); |
| } |
| } |
| |
| boolean hooksPaint () { |
| return hooks (SWT.Paint) || filters (SWT.Paint); |
| } |
| |
| @Override |
| long hoverProc (long widget) { |
| int[] x = new int[1], y = new int[1], mask = new int[1]; |
| if (GTK.GTK4) { |
| double[] xDouble = new double[1], yDouble = new double[1]; |
| display.getPointerPosition(xDouble, yDouble); |
| |
| x[0] = (int)xDouble[0]; |
| y[0] = (int)yDouble[0]; |
| } else { |
| display.getWindowPointerPosition(0, x, y, mask); |
| } |
| |
| if (containedInRegion(x[0], y[0])) return 0; |
| sendMouseEvent(SWT.MouseHover, 0, 0, x[0], y[0], false, mask[0]); |
| |
| /* Always return zero in order to cancel the hover timer */ |
| return 0; |
| } |
| |
| @Override |
| long topHandle() { |
| if (fixedHandle != 0) return fixedHandle; |
| return super.topHandle (); |
| } |
| |
| long paintHandle () { |
| long topHandle = topHandle (); |
| if (GTK.GTK4) return topHandle; |
| long paintHandle = handle; |
| while (paintHandle != topHandle) { |
| if (GTK3.gtk_widget_get_has_window(paintHandle)) break; |
| paintHandle = GTK.gtk_widget_get_parent (paintHandle); |
| } |
| return paintHandle; |
| } |
| |
| @Override |
| long paintWindow () { |
| long paintHandle = paintHandle (); |
| GTK.gtk_widget_realize (paintHandle); |
| if (GTK.GTK4) { |
| return gtk_widget_get_surface (paintHandle); |
| } else { |
| return gtk_widget_get_window (paintHandle); |
| } |
| } |
| |
| @Override |
| long paintSurface () { |
| long paintHandle = paintHandle (); |
| GTK.gtk_widget_realize (paintHandle); |
| return gtk_widget_get_surface (paintHandle); |
| } |
| |
| /** |
| * Prints the receiver and all children. |
| * |
| * @param gc the gc where the drawing occurs |
| * @return <code>true</code> if the operation was successful and <code>false</code> otherwise |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public boolean print (GC gc) { |
| checkWidget (); |
| if (gc == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (gc.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| long topHandle = topHandle (); |
| GTK.gtk_widget_realize (topHandle); |
| /* |
| * Feature in GTK: gtk_widget_draw() will only draw if the |
| * widget's priv->alloc_needed field is set to TRUE. Since |
| * this field is private and inaccessible, get and set the |
| * allocation to trigger it to be TRUE. See bug 530969. |
| */ |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation(topHandle, allocation); |
| // Prevent allocation warnings |
| GTK.gtk_widget_get_preferred_size(topHandle, null, null); |
| GTK.gtk_widget_size_allocate(topHandle, allocation); |
| GTK3.gtk_widget_draw(topHandle, gc.handle); |
| return true; |
| } |
| |
| void printWidget (GC gc, long drawable, int depth, int x, int y) { |
| boolean obscured = (state & OBSCURED) != 0; |
| state &= ~OBSCURED; |
| long topHandle = topHandle (); |
| long gdkResource = GTK.GTK4 ? gtk_widget_get_surface(topHandle) : gtk_widget_get_window (topHandle); |
| printWindow (true, this, gc, drawable, depth, gdkResource, x, y); |
| if (obscured) state |= OBSCURED; |
| } |
| |
| void printWindow (boolean first, Control control, GC gc, long drawable, int depth, long window, int x, int y) { |
| /* |
| * TODO: this needs to be re-implemented for GTK3 as it uses GdkDrawable which is gone. |
| * See: https://developer.gnome.org/gtk3/stable/ch26s02.html#id-1.6.3.4.7 |
| */ |
| return; |
| } |
| |
| /** |
| * Returns the preferred size (in points) of the receiver. |
| * <p> |
| * The <em>preferred size</em> of a control is the size that it would |
| * best be displayed at. The width hint and height hint arguments |
| * allow the caller to ask a control questions such as "Given a particular |
| * width, how high does the control need to be to show all of the contents?" |
| * To indicate that the caller does not wish to constrain a particular |
| * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint. |
| * </p> |
| * |
| * @param wHint the width hint (can be <code>SWT.DEFAULT</code>) |
| * @param hHint the height hint (can be <code>SWT.DEFAULT</code>) |
| * @return the preferred size of the control |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Layout |
| * @see #getBorderWidth |
| * @see #getBounds |
| * @see #getSize |
| * @see #pack(boolean) |
| * @see "computeTrim, getClientArea for controls that implement them" |
| */ |
| public Point computeSize (int wHint, int hHint) { |
| return computeSize (wHint, hHint, true); |
| } |
| |
| Point computeSizeInPixels (int wHint, int hHint) { |
| return computeSizeInPixels (wHint, hHint, true); |
| } |
| |
| Widget computeTabGroup () { |
| if (isTabGroup()) return this; |
| return parent.computeTabGroup (); |
| } |
| |
| Widget[] computeTabList() { |
| if (isTabGroup()) { |
| if (getVisible() && getEnabled()) { |
| return new Widget[] {this}; |
| } |
| } |
| return new Widget[0]; |
| } |
| |
| Control computeTabRoot () { |
| Control[] tabList = parent._getTabList(); |
| if (tabList != null) { |
| int index = 0; |
| while (index < tabList.length) { |
| if (tabList [index] == this) break; |
| index++; |
| } |
| if (index == tabList.length) { |
| if (isTabGroup ()) return this; |
| } |
| } |
| return parent.computeTabRoot (); |
| } |
| |
| void checkBuffered () { |
| style |= SWT.DOUBLE_BUFFERED; |
| } |
| |
| void checkBackground () { |
| Shell shell = getShell (); |
| if (this == shell) return; |
| state &= ~PARENT_BACKGROUND; |
| Composite composite = parent; |
| do { |
| int mode = composite.backgroundMode; |
| if (mode != SWT.INHERIT_NONE || backgroundAlpha == 0) { |
| if (mode == SWT.INHERIT_DEFAULT || backgroundAlpha == 0) { |
| Control control = this; |
| do { |
| if ((control.state & THEME_BACKGROUND) == 0) { |
| return; |
| } |
| control = control.parent; |
| } while (control != composite); |
| } |
| state |= PARENT_BACKGROUND; |
| return; |
| } |
| if (composite == shell) break; |
| composite = composite.parent; |
| } while (true); |
| } |
| |
| void checkBorder () { |
| if (getBorderWidthInPixels () == 0) style &= ~SWT.BORDER; |
| } |
| |
| void checkMirrored () { |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) style |= SWT.MIRRORED; |
| } |
| |
| /** |
| * Convenience method for checking whether an (x, y) coordinate is in the set |
| * region. Only relevant for GTK3.10+. |
| * |
| * @param x an x coordinate |
| * @param y a y coordinate |
| * @return true if the coordinate (x, y) is in the region, false otherwise |
| */ |
| boolean containedInRegion (int x, int y) { |
| if (drawRegion && eventRegion != 0) { |
| return Cairo.cairo_region_contains_point(eventRegion, x, y); |
| } |
| return false; |
| } |
| |
| @Override |
| void createWidget(int index) { |
| state |= DRAG_DETECT; |
| checkOrientation(parent); |
| super.createWidget(index); |
| checkBackground(); |
| if ((state & PARENT_BACKGROUND) != 0) setParentBackground(); |
| checkBuffered(); |
| showWidget(); |
| setInitialBounds(); |
| setZOrder(null, false, false); |
| if (!GTK.GTK4) setRelations(); |
| checkMirrored(); |
| checkBorder(); |
| } |
| |
| /** |
| * Returns the preferred size (in points) of the receiver. |
| * <p> |
| * The <em>preferred size</em> of a control is the size that it would |
| * best be displayed at. The width hint and height hint arguments |
| * allow the caller to ask a control questions such as "Given a particular |
| * width, how high does the control need to be to show all of the contents?" |
| * To indicate that the caller does not wish to constrain a particular |
| * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint. |
| * </p><p> |
| * If the changed flag is <code>true</code>, it indicates that the receiver's |
| * <em>contents</em> have changed, therefore any caches that a layout manager |
| * containing the control may have been keeping need to be flushed. When the |
| * control is resized, the changed flag will be <code>false</code>, so layout |
| * manager caches can be retained. |
| * </p> |
| * |
| * @param wHint the width hint (can be <code>SWT.DEFAULT</code>) |
| * @param hHint the height hint (can be <code>SWT.DEFAULT</code>) |
| * @param changed <code>true</code> if the control's contents have changed, and <code>false</code> otherwise |
| * @return the preferred size of the control. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Layout |
| * @see #getBorderWidth |
| * @see #getBounds |
| * @see #getSize |
| * @see #pack(boolean) |
| * @see "computeTrim, getClientArea for controls that implement them" |
| */ |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget(); |
| if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; |
| if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; |
| wHint = DPIUtil.autoScaleUp(wHint); |
| hHint = DPIUtil.autoScaleUp(hHint); |
| return DPIUtil.autoScaleDown (computeSizeInPixels (wHint, hHint, changed)); |
| } |
| |
| Point computeSizeInPixels (int wHint, int hHint, boolean changed) { |
| checkWidget(); |
| if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; |
| if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; |
| return computeNativeSize (handle, wHint, hHint, changed); |
| } |
| |
| Point computeNativeSize (long h, int wHint, int hHint, boolean changed) { |
| int width = wHint, height = hHint; |
| if (wHint == SWT.DEFAULT && hHint == SWT.DEFAULT) { |
| GtkRequisition requisition = new GtkRequisition (); |
| GTK.gtk_widget_get_preferred_size (h, null, requisition); |
| width = requisition.width; |
| height = requisition.height; |
| } else if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) { |
| int [] natural_size = new int [1]; |
| if (wHint == SWT.DEFAULT) { |
| if (GTK.GTK4) { |
| GTK4.gtk_widget_measure(h, GTK.GTK_ORIENTATION_HORIZONTAL, height, null, natural_size, null, null); |
| } else { |
| GTK3.gtk_widget_get_preferred_width_for_height (h, height, null, natural_size); |
| } |
| width = natural_size [0]; |
| } else { |
| if (GTK.GTK4) { |
| GTK4.gtk_widget_measure(h, GTK.GTK_ORIENTATION_VERTICAL, width, null, natural_size, null, null); |
| } else { |
| GTK3.gtk_widget_get_preferred_height_for_width (h, width, null, natural_size); |
| } |
| height = natural_size [0]; |
| } |
| } |
| return new Point(width, height); |
| } |
| |
| void forceResize () { |
| /* |
| * Force size allocation on all children of this widget's |
| * topHandle. Note that all calls to gtk_widget_size_allocate() |
| * must be preceded by a call to gtk_widget_size_request(). |
| */ |
| long topHandle = topHandle (); |
| GtkRequisition requisition = new GtkRequisition (); |
| gtk_widget_get_preferred_size (topHandle, requisition); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation(topHandle, allocation); |
| if (GTK.GTK4) { |
| GTK.gtk_widget_size_allocate (topHandle, allocation, -1); |
| } else { |
| GTK.gtk_widget_size_allocate (topHandle, allocation); |
| } |
| } |
| |
| /** |
| * Returns the accessible object for the receiver. |
| * <p> |
| * If this is the first time this object is requested, |
| * then the object is created and returned. The object |
| * returned by getAccessible() does not need to be disposed. |
| * </p> |
| * |
| * @return the accessible object |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Accessible#addAccessibleListener |
| * @see Accessible#addAccessibleControlListener |
| * |
| * @since 2.0 |
| */ |
| public Accessible getAccessible () { |
| checkWidget (); |
| return _getAccessible (); |
| } |
| |
| Accessible _getAccessible () { |
| if (accessible == null) { |
| accessible = Accessible.internal_new_Accessible (this); |
| } |
| return accessible; |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location in points |
| * relative to its parent (or its display if its parent is null), |
| * unless the receiver is a shell. In this case, the location is |
| * relative to the display. |
| * |
| * @return the receiver's bounding rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Rectangle getBounds () { |
| checkWidget(); |
| return DPIUtil.autoScaleDown(getBoundsInPixels()); |
| } |
| |
| Rectangle getBoundsInPixels () { |
| checkWidget(); |
| long topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation (topHandle, allocation); |
| int x = allocation.x; |
| int y = allocation.y; |
| int width = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| int height = (state & ZERO_HEIGHT) != 0 ? 0 :allocation.height; |
| if ((parent.style & SWT.MIRRORED) != 0) x = parent.getClientWidth () - width - x; |
| return new Rectangle (x, y, width, height); |
| } |
| |
| /** |
| * Sets the receiver's size and location in points to the rectangular |
| * area specified by the argument. The <code>x</code> and |
| * <code>y</code> fields of the rectangle are relative to |
| * the receiver's parent (or its display if its parent is null). |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause that |
| * value to be set to zero instead. |
| * </p> |
| * <p> |
| * Note: On GTK, attempting to set the width or height of the |
| * receiver to a number higher or equal 2^14 will cause them to be |
| * set to (2^14)-1 instead. |
| * </p> |
| * |
| * @param rect the new bounds for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setBounds (Rectangle rect) { |
| checkWidget (); |
| if (rect == null) error (SWT.ERROR_NULL_ARGUMENT); |
| rect = DPIUtil.autoScaleUp(rect); |
| setBounds (rect.x, rect.y, Math.max (0, rect.width), Math.max (0, rect.height), true, true); |
| } |
| |
| void setBoundsInPixels (Rectangle rect) { |
| checkWidget (); |
| if (rect == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setBounds (rect.x, rect.y, Math.max (0, rect.width), Math.max (0, rect.height), true, true); |
| } |
| |
| /** |
| * Sets the receiver's size and location in points to the rectangular |
| * area specified by the arguments. The <code>x</code> and |
| * <code>y</code> arguments are relative to the receiver's |
| * parent (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the <code>x</code> |
| * and <code>y</code> arguments are relative to the display. |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause that |
| * value to be set to zero instead. |
| * </p> |
| * <p> |
| * Note: On GTK, attempting to set the width or height of the |
| * receiver to a number higher or equal 2^14 will cause them to be |
| * set to (2^14)-1 instead. |
| * </p> |
| * |
| * @param x the new x coordinate for the receiver |
| * @param y the new y coordinate for the receiver |
| * @param width the new width for the receiver |
| * @param height the new height for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setBounds (int x, int y, int width, int height) { |
| checkWidget(); |
| Rectangle rect = DPIUtil.autoScaleUp(new Rectangle (x, y, width, height)); |
| setBounds (rect.x, rect.y, Math.max (0, rect.width), Math.max (0, rect.height), true, true); |
| } |
| |
| void setBoundsInPixels (int x, int y, int width, int height) { |
| checkWidget(); |
| setBounds (x, y, Math.max (0, width), Math.max (0, height), true, true); |
| } |
| |
| void markLayout (boolean changed, boolean all) { |
| /* Do nothing */ |
| } |
| |
| void moveHandle (int x, int y) { |
| long topHandle = topHandle (); |
| long parentHandle = parent.parentingHandle (); |
| OS.swt_fixed_move (parentHandle, topHandle, x, y); |
| } |
| |
| void resizeHandle (int width, int height) { |
| long topHandle = topHandle (); |
| OS.swt_fixed_resize (GTK.gtk_widget_get_parent (topHandle), topHandle, width, height); |
| if (topHandle != handle) { |
| Point sizes = resizeCalculationsGTK3 (handle, width, height); |
| width = sizes.x; |
| height = sizes.y; |
| OS.swt_fixed_resize (GTK.gtk_widget_get_parent (handle), handle, width, height); |
| } |
| } |
| |
| Point resizeCalculationsGTK3 (long widget, int width, int height) { |
| Point sizes = new Point (width, height); |
| /* |
| * Feature in GTK3.20+: size calculations take into account GtkCSSNode |
| * elements which we cannot access. If the to-be-allocated size minus |
| * these elements is < 0, allocate the preferred size instead. See bug 486068. |
| */ |
| GtkRequisition minimumSize = new GtkRequisition(); |
| GtkRequisition naturalSize = new GtkRequisition(); |
| GTK.gtk_widget_get_preferred_size(widget, minimumSize, naturalSize); |
| /* |
| * Use the smallest of the minimum/natural sizes to prevent oversized |
| * widgets. |
| */ |
| int smallestWidth = Math.min(minimumSize.width, naturalSize.width); |
| int smallestHeight = Math.min(minimumSize.height, naturalSize.height); |
| sizes.x = (width - (smallestWidth - width)) < 0 ? smallestWidth : width; |
| sizes.y = (height - (smallestHeight - height)) < 0 ? smallestHeight : height; |
| return sizes; |
| } |
| |
| int setBounds (int x, int y, int width, int height, boolean move, boolean resize) { |
| // bug in GTK2 crashes JVM, in GTK3 the new shell only. See bug 472743 |
| width = Math.min(width, (2 << 14) - 1); |
| height = Math.min(height, (2 << 14) - 1); |
| |
| long topHandle = topHandle (); |
| boolean sendMove = move; |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation (topHandle, allocation); |
| if ((parent.style & SWT.MIRRORED) != 0) { |
| int clientWidth = parent.getClientWidth (); |
| int oldWidth = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| int oldX = clientWidth - oldWidth - allocation.x; |
| if (move) { |
| sendMove &= x != oldX; |
| x = clientWidth - (resize ? width : oldWidth) - x; |
| } else { |
| move = true; |
| x = clientWidth - (resize ? width : oldWidth) - oldX; |
| y = allocation.y; |
| } |
| } |
| boolean sameOrigin = true, sameExtent = true; |
| if (move) { |
| int oldX = allocation.x; |
| int oldY = allocation.y; |
| sameOrigin = x == oldX && y == oldY; |
| if (!sameOrigin) { |
| if (!GTK.GTK4) { |
| if (enableWindow != 0) { |
| GDK.gdk_window_move (enableWindow, x, y); |
| } |
| } |
| moveHandle (x, y); |
| } |
| } |
| int clientWidth = 0; |
| if (resize) { |
| int oldWidth = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| int oldHeight = (state & ZERO_HEIGHT) != 0 ? 0 : allocation.height; |
| sameExtent = width == oldWidth && height == oldHeight; |
| if (!sameExtent && (style & SWT.MIRRORED) != 0) clientWidth = getClientWidth (); |
| if (!sameExtent && !(width == 0 && height == 0)) { |
| int newWidth = Math.max (1, width); |
| int newHeight = Math.max (1, height); |
| if (!GTK.GTK4) { |
| if (redrawWindow != 0) { |
| GDK.gdk_window_resize (redrawWindow, newWidth, newHeight); |
| } |
| if (enableWindow != 0) { |
| GDK.gdk_window_resize (enableWindow, newWidth, newHeight); |
| } |
| } |
| resizeHandle (newWidth, newHeight); |
| } |
| } |
| if (!sameOrigin || !sameExtent) { |
| /* |
| * Cause a size allocation this widget's topHandle. Note that |
| * all calls to gtk_widget_size_allocate() must be preceded by |
| * a call to gtk_widget_size_request(). |
| */ |
| GtkRequisition requisition = new GtkRequisition (); |
| gtk_widget_get_preferred_size (topHandle, requisition); |
| if (move) { |
| allocation.x = x; |
| allocation.y = y; |
| } |
| if (resize) { |
| allocation.width = width; |
| allocation.height = height; |
| } |
| /* |
| * The widget needs to be shown before its size is allocated |
| * in GTK3.8, otherwise its allocation return 0 |
| * See org.eclipse.swt.tests.gtk.snippets.Bug497705_setBoundsAfterSetVisible |
| * Note: gtk_widget_hide sometimes destroy focus on previously focused control, |
| * this might cause unnecessary focus change events. In case this happens, try remove |
| * gtk_widget_hide call or avoid setting bounds on invisible widgets. |
| */ |
| if (!GTK.gtk_widget_get_visible(topHandle)) { |
| Control focusControl = display.getFocusControl(); |
| GTK.gtk_widget_show(topHandle); |
| gtk_widget_get_preferred_size (topHandle, requisition); |
| if (GTK.GTK4) { |
| GTK.gtk_widget_size_allocate (topHandle, allocation, -1); |
| } else { |
| GTK.gtk_widget_size_allocate (topHandle, allocation); |
| } |
| GTK.gtk_widget_hide(topHandle); |
| /* Bug 540002: Showing and hiding widget causes original focused control to loose focus, |
| * Reset focus to original focused control after dealing with allocation. |
| */ |
| if (focusControl != null && display.getFocusControl() != focusControl) { |
| focusControl.setFocus(); |
| } |
| } else { |
| if (GTK.GTK4) { |
| GTK.gtk_widget_size_allocate (topHandle, allocation, -1); |
| } else { |
| // Prevent GTK+ allocation warnings, preferred size should be retrieved before setting allocation size. |
| GTK.gtk_widget_get_preferred_size(topHandle, null, null); |
| GTK.gtk_widget_size_allocate (topHandle, allocation); |
| } |
| } |
| } |
| /* |
| * Bug in GTK. Widgets cannot be sized smaller than 1x1. |
| * The fix is to hide zero-sized widgets and show them again |
| * when they are resized larger. |
| */ |
| if (!sameExtent) { |
| state = (width == 0) ? state | ZERO_WIDTH : state & ~ZERO_WIDTH; |
| state = (height == 0) ? state | ZERO_HEIGHT : state & ~ZERO_HEIGHT; |
| if ((state & (ZERO_WIDTH | ZERO_HEIGHT)) != 0) { |
| if (!GTK.GTK4) { |
| if (enableWindow != 0) { |
| GDK.gdk_window_hide(enableWindow); |
| } |
| } |
| |
| GTK.gtk_widget_hide(topHandle); |
| } else { |
| if ((state & HIDDEN) == 0) { |
| if (!GTK.GTK4) { |
| if (enableWindow != 0) { |
| GDK.gdk_window_show_unraised(enableWindow); |
| } |
| } |
| |
| GTK.gtk_widget_show(topHandle); |
| } |
| } |
| |
| if ((style & SWT.MIRRORED) != 0) moveChildren (clientWidth); |
| } |
| int result = 0; |
| if (move && !sameOrigin) { |
| Control control = findBackgroundControl (); |
| if (control != null && control.backgroundImage != null) { |
| if (isVisible ()) redrawWidget (0, 0, 0, 0, true, true, true); |
| } |
| if (sendMove) sendEvent (SWT.Move); |
| result |= MOVED; |
| } |
| if (resize && !sameExtent) { |
| sendEvent (SWT.Resize); |
| result |= RESIZED; |
| } |
| return result; |
| } |
| |
| /** |
| * Returns a point describing the receiver's location relative |
| * to its parent in points (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the point is |
| * relative to the display. |
| * |
| * @return the receiver's location |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point getLocation () { |
| checkWidget(); |
| return DPIUtil.autoScaleDown(getLocationInPixels()); |
| } |
| |
| Point getLocationInPixels () { |
| checkWidget(); |
| long topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation (topHandle, allocation); |
| int x = allocation.x; |
| int y = allocation.y; |
| if ((parent.style & SWT.MIRRORED) != 0) { |
| int width = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| x = parent.getClientWidth () - width - x; |
| } |
| return new Point (x, y); |
| } |
| |
| /** |
| * Sets the receiver's location to the point specified by |
| * the arguments which are relative to the receiver's |
| * parent (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the point is |
| * relative to the display. |
| * |
| * @param location the new location for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setLocation (Point location) { |
| checkWidget (); |
| if (location == null) error (SWT.ERROR_NULL_ARGUMENT); |
| location = DPIUtil.autoScaleUp(location); |
| setBounds (location.x, location.y, 0, 0, true, false); |
| } |
| |
| void setLocationInPixels (Point location) { |
| checkWidget (); |
| if (location == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setBounds (location.x, location.y, 0, 0, true, false); |
| } |
| |
| /** |
| * Sets the receiver's location to the point specified by |
| * the arguments which are relative to the receiver's |
| * parent (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the point is |
| * relative to the display. |
| * |
| * @param x the new x coordinate for the receiver |
| * @param y the new y coordinate for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setLocation(int x, int y) { |
| checkWidget(); |
| Point loc = DPIUtil.autoScaleUp(new Point (x, y)); |
| setBounds (loc.x, loc.y, 0, 0, true, false); |
| } |
| |
| void setLocationInPixels(int x, int y) { |
| checkWidget(); |
| setBounds (x, y, 0, 0, true, false); |
| } |
| |
| /** |
| * Returns a point describing the receiver's size in points. The |
| * x coordinate of the result is the width of the receiver. |
| * The y coordinate of the result is the height of the |
| * receiver. |
| * |
| * @return the receiver's size |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point getSize () { |
| checkWidget(); |
| return DPIUtil.autoScaleDown(getSizeInPixels()); |
| } |
| |
| Point getSizeInPixels () { |
| checkWidget(); |
| long topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation (topHandle, allocation); |
| int width = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| int height = (state & ZERO_HEIGHT) != 0 ? 0 : allocation.height; |
| return new Point (width, height); |
| } |
| |
| /** |
| * Sets the receiver's size to the point specified by the argument. |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause them to be |
| * set to zero instead. |
| * </p> |
| * <p> |
| * Note: On GTK, attempting to set the width or height of the |
| * receiver to a number higher or equal 2^14 will cause them to be |
| * set to (2^14)-1 instead. |
| * </p> |
| * |
| * @param size the new size in points for the receiver |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setSize (Point size) { |
| checkWidget (); |
| if (size == null) error (SWT.ERROR_NULL_ARGUMENT); |
| size = DPIUtil.autoScaleUp(size); |
| setBounds (0, 0, Math.max (0, size.x), Math.max (0, size.y), false, true); |
| } |
| |
| void setSizeInPixels (Point size) { |
| checkWidget (); |
| if (size == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setBounds (0, 0, Math.max (0, size.x), Math.max (0, size.y), false, true); |
| } |
| |
| /** |
| * Sets the shape of the control to the region specified |
| * by the argument. When the argument is null, the |
| * default shape of the control is restored. |
| * |
| * @param region the region that defines the shape of the control (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the region has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public void setRegion (Region region) { |
| checkWidget (); |
| if (region != null && region.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| long shape_region = (region == null) ? 0 : region.handle; |
| this.region = region; |
| long topHandle = topHandle (); |
| |
| if (OS.G_OBJECT_TYPE(topHandle) == GTK.GTK_TYPE_WINDOW()) { |
| GTK3.gtk_widget_shape_combine_region(topHandle, shape_region); |
| /* |
| * Bug in GTK: on Wayland, pixels in window outside shape_region |
| * is black instead of transparent when the widget is fully opaque (i.e. opacity == 1.0) |
| * This is a hack to force the outside pixels to be transparent on Wayland so that |
| * Part-Drag on Eclipse does not cause black-out. See Bug 535083. |
| */ |
| if (!OS.isX11()) { |
| double alpha = GTK.gtk_widget_get_opacity(topHandle); |
| if (alpha == 1) alpha = 0.99; |
| GTK.gtk_widget_set_opacity(topHandle, alpha); |
| } |
| } else { |
| drawRegion = (this.region != null && this.region.handle != 0); |
| if (drawRegion) { |
| cairoCopyRegion(this.region); |
| } else { |
| cairoDisposeRegion(); |
| } |
| GTK.gtk_widget_queue_draw(topHandle()); |
| } |
| } |
| |
| void setRelations () { |
| long parentHandle = parent.parentingHandle(); |
| long handle = 0; |
| |
| if (GTK.GTK4) { |
| int count = 0; |
| for (long child = GTK4.gtk_widget_get_first_child(parentHandle); child != 0; child = GTK4.gtk_widget_get_next_sibling(child)) { |
| count++; |
| } |
| |
| if (count > 1) { |
| handle = GTK4.gtk_widget_get_prev_sibling(GTK4.gtk_widget_get_last_child(parentHandle)); |
| } |
| } else { |
| long list = GTK3.gtk_container_get_children (parentHandle); |
| if (list == 0) return; |
| int count = OS.g_list_length (list); |
| if (count > 1) { |
| /* |
| * the receiver is the last item in the list, so its predecessor will |
| * be the second-last item in the list |
| */ |
| handle = OS.g_list_nth_data (list, count - 2); |
| } |
| OS.g_list_free (list); |
| } |
| |
| if (handle != 0) { |
| Widget widget = display.getWidget (handle); |
| if (widget != null && widget != this) { |
| if (widget instanceof Control) { |
| Control sibling = (Control)widget; |
| sibling.addRelation (this); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Sets the receiver's size to the point specified by the arguments. |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause that |
| * value to be set to zero instead. |
| * </p> |
| * <p> |
| * Note: On GTK, attempting to set the width or height of the |
| * receiver to a number higher or equal 2^14 will cause them to be |
| * set to (2^14)-1 instead. |
| * </p> |
| * |
| * @param width the new width in points for the receiver |
| * @param height the new height in points for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setSize (int width, int height) { |
| checkWidget(); |
| Point size = DPIUtil.autoScaleUp(new Point (width, height)); |
| setBounds (0, 0, Math.max (0, size.x), Math.max (0, size.y), false, true); |
| } |
| |
| void setSizeInPixels (int width, int height) { |
| checkWidget(); |
| setBounds (0, 0, Math.max (0, width), Math.max (0, height), false, true); |
| } |
| |
| |
| @Override |
| boolean isActive () { |
| return getShell ().getModalShell () == null && display.getModalDialog () == null; |
| } |
| |
| @Override |
| public boolean isAutoScalable () { |
| return autoScale; |
| } |
| |
| |
| /* |
| * Answers a boolean indicating whether a Label that precedes the receiver in |
| * a layout should be read by screen readers as the recevier's label. |
| */ |
| boolean isDescribedByLabel () { |
| return true; |
| } |
| |
| boolean isFocusHandle (long widget) { |
| return widget == focusHandle (); |
| } |
| |
| /** |
| * Moves the receiver above the specified control in the |
| * drawing order. If the argument is null, then the receiver |
| * is moved to the top of the drawing order. The control at |
| * the top of the drawing order will not be covered by other |
| * controls even if they occupy intersecting areas. |
| * |
| * @param control the sibling control (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Control#moveBelow |
| * @see Composite#getChildren |
| */ |
| public void moveAbove (Control control) { |
| checkWidget(); |
| if (control != null) { |
| if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (parent != control.parent) return; |
| if (this == control) return; |
| } |
| setZOrder (control, true, true); |
| } |
| |
| /** |
| * Moves the receiver below the specified control in the |
| * drawing order. If the argument is null, then the receiver |
| * is moved to the bottom of the drawing order. The control at |
| * the bottom of the drawing order will be covered by all other |
| * controls which occupy intersecting areas. |
| * |
| * @param control the sibling control (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Control#moveAbove |
| * @see Composite#getChildren |
| */ |
| public void moveBelow (Control control) { |
| checkWidget(); |
| if (control != null) { |
| if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (parent != control.parent) return; |
| if (this == control) return; |
| } |
| setZOrder (control, false, true); |
| } |
| |
| void moveChildren (int oldWidth) { |
| } |
| |
| /** |
| * Causes the receiver to be resized to its preferred size. |
| * For a composite, this involves computing the preferred size |
| * from its layout, if there is one. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #computeSize(int, int, boolean) |
| */ |
| public void pack () { |
| pack (true); |
| } |
| |
| /** |
| * Causes the receiver to be resized to its preferred size. |
| * For a composite, this involves computing the preferred size |
| * from its layout, if there is one. |
| * <p> |
| * If the changed flag is <code>true</code>, it indicates that the receiver's |
| * <em>contents</em> have changed, therefore any caches that a layout manager |
| * containing the control may have been keeping need to be flushed. When the |
| * control is resized, the changed flag will be <code>false</code>, so layout |
| * manager caches can be retained. |
| * </p> |
| * |
| * @param changed whether or not the receiver's contents have changed |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #computeSize(int, int, boolean) |
| */ |
| public void pack (boolean changed) { |
| setSize (computeSize (SWT.DEFAULT, SWT.DEFAULT, changed)); |
| } |
| |
| /** |
| * Sets the layout data associated with the receiver to the argument. |
| * |
| * @param layoutData the new layout data for the receiver. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setLayoutData (Object layoutData) { |
| checkWidget(); |
| this.layoutData = layoutData; |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in display relative coordinates, |
| * to coordinates relative to the receiver. |
| * <p> |
| * NOTE: To properly map a rectangle or a corner of a rectangle on a right-to-left platform, use |
| * {@link Display#map(Control, Control, Rectangle)}. |
| * </p> |
| * |
| * @param x the x coordinate in points to be translated |
| * @param y the y coordinate in points to be translated |
| * @return the translated coordinates |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public Point toControl(int x, int y) { |
| checkWidget(); |
| int[] origin_x = new int[1], origin_y = new int[1]; |
| if (GTK.GTK4) { |
| Point origin = getControlOrigin(); |
| origin_x[0] = origin.x; |
| origin_y[0] = origin.y; |
| } else { |
| long window = eventWindow(); |
| GDK.gdk_window_get_origin(window, origin_x, origin_y); |
| } |
| |
| x -= DPIUtil.autoScaleDown(origin_x[0]); |
| y -= DPIUtil.autoScaleDown(origin_y[0]); |
| if ((style & SWT.MIRRORED) != 0) x = DPIUtil.autoScaleDown(getClientWidth()) - x; |
| |
| return new Point(x, y); |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in display relative coordinates, |
| * to coordinates relative to the receiver. |
| * <p> |
| * NOTE: To properly map a rectangle or a corner of a rectangle on a right-to-left platform, use |
| * {@link Display#map(Control, Control, Rectangle)}. |
| * </p> |
| * |
| * @param point the point to be translated (must not be null) |
| * @return the translated coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point toControl (Point point) { |
| checkWidget (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return toControl (point.x, point.y); |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in coordinates relative to |
| * the receiver, to display relative coordinates. |
| * <p> |
| * NOTE: To properly map a rectangle or a corner of a rectangle on a right-to-left platform, use |
| * {@link Display#map(Control, Control, Rectangle)}. |
| * </p> |
| * |
| * @param x the x coordinate to be translated |
| * @param y the y coordinate to be translated |
| * @return the translated coordinates |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public Point toDisplay(int x, int y) { |
| checkWidget(); |
| int[] origin_x = new int[1], origin_y = new int[1]; |
| if (GTK.GTK4) { |
| Point origin = getControlOrigin(); |
| origin_x[0] = origin.x; |
| origin_y[0] = origin.y; |
| } else { |
| long window = eventWindow(); |
| GDK.gdk_window_get_origin(window, origin_x, origin_y); |
| } |
| |
| if ((style & SWT.MIRRORED) != 0) x = DPIUtil.autoScaleDown(getClientWidth()) - x; |
| x += DPIUtil.autoScaleDown(origin_x[0]); |
| y += DPIUtil.autoScaleDown(origin_y[0]); |
| |
| return new Point(x, y); |
| } |
| |
| Point toDisplayInPixels(int x, int y) { |
| checkWidget(); |
| |
| int[] origin_x = new int[1], origin_y = new int[1]; |
| if (GTK.GTK4) { |
| Point origin = getControlOrigin(); |
| origin_x[0] = origin.x; |
| origin_y[0] = origin.y; |
| } else { |
| long window = eventWindow(); |
| GDK.gdk_window_get_origin(window, origin_x, origin_y); |
| } |
| |
| if ((style & SWT.MIRRORED) != 0) x = getClientWidth() - x; |
| x += origin_x[0]; |
| y += origin_y[0]; |
| |
| return new Point(x, y); |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in coordinates relative to |
| * the receiver, to display relative coordinates. |
| * <p> |
| * NOTE: To properly map a rectangle or a corner of a rectangle on a right-to-left platform, use |
| * {@link Display#map(Control, Control, Rectangle)}. |
| * </p> |
| * |
| * @param point the point to be translated (must not be null) |
| * @return the translated coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point toDisplay (Point point) { |
| checkWidget(); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return toDisplay (point.x, point.y); |
| } |
| |
| Point toDisplayInPixels (Point point) { |
| checkWidget(); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return toDisplayInPixels (point.x, point.y); |
| } |
| |
| /** |
| * GTK4 only function to replace gdk_surface_get_origin |
| * @return the origin of the Control's SWTFixed container relative to the Shell |
| */ |
| Point getControlOrigin() { |
| double[] originX = new double[1], originY = new double[1]; |
| boolean success = GTK4.gtk_widget_translate_coordinates(fixedHandle, getShell().shellHandle, 0, 0, originX, originY); |
| |
| return success ? new Point((int)originX[0], (int)originY[0]) : new Point(0, 0); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is moved or resized, by sending |
| * it one of the messages defined in the <code>ControlListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ControlListener |
| * @see #removeControlListener |
| */ |
| public void addControlListener(ControlListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Resize,typedListener); |
| addListener (SWT.Move,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when a drag gesture occurs, by sending it |
| * one of the messages defined in the <code>DragDetectListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #removeDragDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void addDragDetectListener (DragDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.DragDetect,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control gains or loses focus, by sending |
| * it one of the messages defined in the <code>FocusListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see FocusListener |
| * @see #removeFocusListener |
| */ |
| public void addFocusListener(FocusListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener(SWT.FocusIn,typedListener); |
| addListener(SWT.FocusOut,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when gesture events are generated for the control, |
| * by sending it one of the messages defined in the |
| * <code>GestureListener</code> interface. |
| * <p> |
| * NOTE: If <code>setTouchEnabled(true)</code> has previously been |
| * invoked on the receiver then <code>setTouchEnabled(false)</code> |
| * must be invoked on it to specify that gesture events should be |
| * sent instead of touch events. |
| * </p> |
| * <p> |
| * <b>Warning</b>: This API is currently only implemented on Windows and Cocoa. |
| * SWT doesn't send Gesture or Touch events on GTK. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see GestureListener |
| * @see #removeGestureListener |
| * @see #setTouchEnabled |
| * |
| * @since 3.7 |
| */ |
| public void addGestureListener (GestureListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Gesture, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when help events are generated for the control, |
| * by sending it one of the messages defined in the |
| * <code>HelpListener</code> interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see HelpListener |
| * @see #removeHelpListener |
| */ |
| public void addHelpListener (HelpListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Help, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when keys are pressed and released on the system keyboard, by sending |
| * it one of the messages defined in the <code>KeyListener</code> |
| * interface. |
| * <p> |
| * When a key listener is added to a control, the control |
| * will take part in widget traversal. By default, all |
| * traversal keys (such as the tab key and so on) are |
| * delivered to the control. In order for a control to take |
| * part in traversal, it should listen for traversal events. |
| * Otherwise, the user can traverse into a control but not |
| * out. Note that native controls such as table and tree |
| * implement key traversal in the operating system. It is |
| * not necessary to add traversal listeners for these controls, |
| * unless you want to override the default traversal. |
| * </p> |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see KeyListener |
| * @see #removeKeyListener |
| */ |
| public void addKeyListener(KeyListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener(SWT.KeyUp,typedListener); |
| addListener(SWT.KeyDown,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the platform-specific context menu trigger |
| * has occurred, by sending it one of the messages defined in |
| * the <code>MenuDetectListener</code> interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MenuDetectListener |
| * @see #removeMenuDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void addMenuDetectListener (MenuDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MenuDetect, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when mouse buttons are pressed and released, by sending |
| * it one of the messages defined in the <code>MouseListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseListener |
| * @see #removeMouseListener |
| */ |
| public void addMouseListener(MouseListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener(SWT.MouseDown,typedListener); |
| addListener(SWT.MouseUp,typedListener); |
| addListener(SWT.MouseDoubleClick,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the mouse moves, by sending it one of the |
| * messages defined in the <code>MouseMoveListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseMoveListener |
| * @see #removeMouseMoveListener |
| */ |
| public void addMouseMoveListener(MouseMoveListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener(SWT.MouseMove,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the mouse passes or hovers over controls, by sending |
| * it one of the messages defined in the <code>MouseTrackListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseTrackListener |
| * @see #removeMouseTrackListener |
| */ |
| public void addMouseTrackListener (MouseTrackListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MouseEnter,typedListener); |
| addListener (SWT.MouseExit,typedListener); |
| addListener (SWT.MouseHover,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the mouse wheel is scrolled, by sending |
| * it one of the messages defined in the |
| * <code>MouseWheelListener</code> interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseWheelListener |
| * @see #removeMouseWheelListener |
| * |
| * @since 3.3 |
| */ |
| public void addMouseWheelListener (MouseWheelListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MouseWheel, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver needs to be painted, by sending it |
| * one of the messages defined in the <code>PaintListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see PaintListener |
| * @see #removePaintListener |
| */ |
| public void addPaintListener(PaintListener listener) { |
| checkWidget(); |
| if (listener == null) error(SWT.ERROR_NULL_ARGUMENT); |
| |
| TypedListener typedListener = new TypedListener(listener); |
| addListener(SWT.Paint, typedListener); |
| } |
| |
| /** |
| * Allows Controls to adjust the clipping of themselves or |
| * their children. |
| * |
| * @param widget the handle to the widget |
| */ |
| void adjustChildClipping (long widget) { |
| } |
| |
| void addRelation (Control control) { |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when touch events occur, by sending it |
| * one of the messages defined in the <code>TouchListener</code> |
| * interface. |
| * <p> |
| * NOTE: You must also call <code>setTouchEnabled(true)</code> to |
| * specify that touch events should be sent, which will cause gesture |
| * events to not be sent. |
| * </p> |
| * <p> |
| * <b>Warning</b>: This API is currently only implemented on Windows and Cocoa. |
| * SWT doesn't send Gesture or Touch events on GTK. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TouchListener |
| * @see #removeTouchListener |
| * @see #setTouchEnabled |
| * |
| * @since 3.7 |
| */ |
| public void addTouchListener (TouchListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Touch,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when traversal events occur, by sending it |
| * one of the messages defined in the <code>TraverseListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TraverseListener |
| * @see #removeTraverseListener |
| */ |
| public void addTraverseListener (TraverseListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Traverse,typedListener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is moved or resized. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ControlListener |
| * @see #addControlListener |
| */ |
| public void removeControlListener (ControlListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Move, listener); |
| eventTable.unhook (SWT.Resize, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when a drag gesture occurs. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #addDragDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void removeDragDetectListener(DragDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.DragDetect, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control gains or loses focus. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see FocusListener |
| * @see #addFocusListener |
| */ |
| public void removeFocusListener(FocusListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.FocusIn, listener); |
| eventTable.unhook (SWT.FocusOut, listener); |
| } |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when gesture events are generated for the control. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see GestureListener |
| * @see #addGestureListener |
| * |
| * @since 3.7 |
| */ |
| public void removeGestureListener (GestureListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook(SWT.Gesture, listener); |
| } |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the help events are generated for the control. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see HelpListener |
| * @see #addHelpListener |
| */ |
| public void removeHelpListener (HelpListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Help, listener); |
| } |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when keys are pressed and released on the system keyboard. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see KeyListener |
| * @see #addKeyListener |
| */ |
| public void removeKeyListener(KeyListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.KeyUp, listener); |
| eventTable.unhook (SWT.KeyDown, listener); |
| } |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the platform-specific context menu trigger has |
| * occurred. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MenuDetectListener |
| * @see #addMenuDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void removeMenuDetectListener (MenuDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MenuDetect, listener); |
| } |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when mouse buttons are pressed and released. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseListener |
| * @see #addMouseListener |
| */ |
| public void removeMouseListener (MouseListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseDown, listener); |
| eventTable.unhook (SWT.MouseUp, listener); |
| eventTable.unhook (SWT.MouseDoubleClick, listener); |
| } |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the mouse moves. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseMoveListener |
| * @see #addMouseMoveListener |
| */ |
| public void removeMouseMoveListener(MouseMoveListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseMove, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the mouse passes or hovers over controls. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseTrackListener |
| * @see #addMouseTrackListener |
| */ |
| public void removeMouseTrackListener(MouseTrackListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseEnter, listener); |
| eventTable.unhook (SWT.MouseExit, listener); |
| eventTable.unhook (SWT.MouseHover, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the mouse wheel is scrolled. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseWheelListener |
| * @see #addMouseWheelListener |
| * |
| * @since 3.3 |
| */ |
| public void removeMouseWheelListener (MouseWheelListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseWheel, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the receiver needs to be painted. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see PaintListener |
| * @see #addPaintListener |
| */ |
| public void removePaintListener(PaintListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook(SWT.Paint, listener); |
| } |
| |
| /* |
| * Remove "Labelled by" relation from the receiver. |
| */ |
| void removeRelation () { |
| if (!isDescribedByLabel ()) return; /* there will not be any */ |
| if (labelRelation != null) { |
| _getAccessible().removeRelation (ACC.RELATION_LABELLED_BY, labelRelation._getAccessible()); |
| labelRelation = null; |
| } |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when touch events occur. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TouchListener |
| * @see #addTouchListener |
| * |
| * @since 3.7 |
| */ |
| public void removeTouchListener(TouchListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Touch, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when traversal events occur. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TraverseListener |
| * @see #addTraverseListener |
| */ |
| public void removeTraverseListener(TraverseListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Traverse, listener); |
| } |
| |
| /** |
| * Detects a drag and drop gesture. This method is used |
| * to detect a drag gesture when called from within a mouse |
| * down listener. |
| * |
| * <p>By default, a drag is detected when the gesture |
| * occurs anywhere within the client area of a control. |
| * Some controls, such as tables and trees, override this |
| * behavior. In addition to the operating system specific |
| * drag gesture, they require the mouse to be inside an |
| * item. Custom widget writers can use <code>setDragDetect</code> |
| * to disable the default detection, listen for mouse down, |
| * and then call <code>dragDetect()</code> from within the |
| * listener to conditionally detect a drag. |
| * </p> |
| * |
| * @param event the mouse down event |
| * |
| * @return <code>true</code> if the gesture occurred, and <code>false</code> otherwise. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT if the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #addDragDetectListener |
| * |
| * @see #getDragDetect |
| * @see #setDragDetect |
| * |
| * @since 3.3 |
| */ |
| public boolean dragDetect (Event event) { |
| checkWidget (); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return dragDetect (event.button, event.count, event.stateMask, event.x, event.y); |
| } |
| |
| /** |
| * Detects a drag and drop gesture. This method is used |
| * to detect a drag gesture when called from within a mouse |
| * down listener. |
| * |
| * <p>By default, a drag is detected when the gesture |
| * occurs anywhere within the client area of a control. |
| * Some controls, such as tables and trees, override this |
| * behavior. In addition to the operating system specific |
| * drag gesture, they require the mouse to be inside an |
| * item. Custom widget writers can use <code>setDragDetect</code> |
| * to disable the default detection, listen for mouse down, |
| * and then call <code>dragDetect()</code> from within the |
| * listener to conditionally detect a drag. |
| * </p> |
| * |
| * @param event the mouse down event |
| * |
| * @return <code>true</code> if the gesture occurred, and <code>false</code> otherwise. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT if the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #addDragDetectListener |
| * |
| * @see #getDragDetect |
| * @see #setDragDetect |
| * |
| * @since 3.3 |
| */ |
| public boolean dragDetect (MouseEvent event) { |
| checkWidget (); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return dragDetect (event.button, event.count, event.stateMask, event.x, event.y); |
| } |
| |
| boolean dragDetect (int button, int count, int stateMask, int x, int y) { |
| if (button != 1 || count != 1) return false; |
| if (!dragDetect (x, y, false, true, null)) { |
| return false; |
| } |
| return sendDragEvent (button, stateMask, x, y, true); |
| } |
| |
| boolean dragDetect (int x, int y, boolean filter, boolean dragOnTimeout, boolean [] consume) { |
| boolean dragging = false; |
| /* |
| * Feature in GTK: In order to support both X.11/Wayland, GTKGestures are used |
| * as of GTK3.14 in order to acquire mouse position offsets to decide on dragging. |
| * See Bug 503431. |
| */ |
| if (!OS.isX11()) { // Wayland |
| double [] offsetX = new double[1]; |
| double [] offsetY = new double [1]; |
| double [] startX = new double[1]; |
| double [] startY = new double [1]; |
| if (GTK.gtk_gesture_drag_get_start_point(dragGesture, startX, startY)) { |
| GTK.gtk_gesture_drag_get_offset(dragGesture, offsetX, offsetY); |
| if (GTK3.gtk_drag_check_threshold(handle, (int)startX[0], (int) startY[0], (int) startX[0] |
| + (int) offsetX[0], (int) startY[0] + (int) offsetY[0])) { |
| dragging = true; |
| } |
| } else { |
| return false; |
| } |
| // Block until mouse was released or drag was detected, see Bug 515396. |
| while (true) { |
| if (!mouseDown) { |
| return false; |
| } |
| if (dragBegun) { |
| return true; |
| } |
| } |
| } else { |
| boolean quit = false; |
| //428852 DND workaround for GTK3. |
| //Gtk3 no longer sends motion events on the same control during thread sleep |
| //before a drag started. This is due to underlying gdk changes. |
| //Thus for gtk3 we check mouse coords manually |
| //Note, input params x/y are relative, the two points below are absolute coords. |
| Point startPos = null; |
| Point currPos = null; |
| startPos = display.getCursorLocationInPixels(); |
| |
| while (!quit) { |
| long eventPtr = 0; |
| /* |
| * There should be an event on the queue already, but |
| * in cases where there isn't one, stop trying after |
| * half a second. |
| */ |
| long timeout = System.currentTimeMillis() + 500; |
| display.sendPreExternalEventDispatchEvent(); |
| while (System.currentTimeMillis() < timeout) { |
| eventPtr = GTK.GTK4 ? GTK3.gtk_get_current_event() : GDK.gdk_event_get (); |
| if (eventPtr != 0) { |
| break; |
| } else { |
| currPos = display.getCursorLocationInPixels(); |
| dragging = GTK3.gtk_drag_check_threshold (handle, |
| startPos.x, startPos.y, currPos.x, currPos.y); |
| if (dragging) break; |
| } |
| } |
| display.sendPostExternalEventDispatchEvent(); |
| if (dragging) return true; //428852 |
| if (eventPtr == 0) return dragOnTimeout; |
| int eventType = GDK.gdk_event_get_event_type(eventPtr); |
| eventType = fixGdkEventTypeValues(eventType); |
| switch (eventType) { |
| case GDK.GDK_MOTION_NOTIFY: { |
| long gdkResource = gdk_event_get_surface_or_window(eventPtr); |
| |
| int [] state = new int[1]; |
| double [] eventX = new double[1]; |
| double [] eventY = new double[1]; |
| if (GTK.GTK4) { |
| state[0] = GDK.gdk_event_get_modifier_state(eventPtr); |
| GDK.gdk_event_get_position(eventPtr, eventX, eventY); |
| } else { |
| GDK.gdk_event_get_state(eventPtr, state); |
| GDK.gdk_event_get_coords(eventPtr, eventX, eventY); |
| } |
| |
| if ((state[0] & GDK.GDK_BUTTON1_MASK) != 0) { |
| if (GTK3.gtk_drag_check_threshold (handle, x, y, (int) eventX[0], (int) eventY[0])) { |
| dragging = true; |
| quit = true; |
| } |
| } else { |
| quit = true; |
| } |
| int [] newX = new int [1], newY = new int [1]; |
| if (GTK.GTK4) { |
| double[] newXDouble = new double[1], newYDouble = new double[1]; |
| display.getPointerPosition(newXDouble, newYDouble); |
| |
| newX[0] = (int)newXDouble[0]; |
| newY[0] = (int)newYDouble[0]; |
| } else { |
| display.getWindowPointerPosition(gdkResource, newX, newY, null); |
| } |
| break; |
| } |
| case GDK.GDK_KEY_PRESS: |
| case GDK.GDK_KEY_RELEASE: { |
| int [] eventKeyval = new int [1]; |
| if (GTK.GTK4) { |
| eventKeyval[0] = GDK.gdk_key_event_get_keyval(eventPtr); |
| } else { |
| GDK.gdk_event_get_keyval(eventPtr, eventKeyval); |
| } |
| |
| if (eventKeyval[0] == GDK.GDK_Escape) quit = true; |
| break; |
| } |
| case GDK.GDK_BUTTON_RELEASE: |
| case GDK.GDK_BUTTON_PRESS: |
| case GDK.GDK_2BUTTON_PRESS: |
| case GDK.GDK_3BUTTON_PRESS: { |
| if (GTK.GTK4) { |
| long display = GDK.gdk_display_get_default(); |
| GDK.gdk_display_put_event(display, eventPtr); |
| } else { |
| GDK.gdk_event_put (eventPtr); |
| } |
| quit = true; |
| break; |
| } |
| default: |
| GTK3.gtk_main_do_event (eventPtr); |
| } |
| gdk_event_free (eventPtr); |
| } |
| } |
| return dragging; |
| } |
| |
| boolean filterKey (int keyval, long event) { |
| long imHandle = imHandle (); |
| if (imHandle != 0) { |
| if (GTK.GTK4) |
| return GTK4.gtk_im_context_filter_keypress (imHandle, event); |
| else |
| return GTK3.gtk_im_context_filter_keypress (imHandle, event); |
| } |
| return false; |
| } |
| |
| Control findBackgroundControl () { |
| if (((state & BACKGROUND) != 0 || backgroundImage != null) && backgroundAlpha > 0) return this; |
| return (parent != null && (state & PARENT_BACKGROUND) != 0) ? parent.findBackgroundControl () : null; |
| } |
| |
| Menu [] findMenus (Control control) { |
| if (menu != null && this != control) return new Menu [] {menu}; |
| return new Menu [0]; |
| } |
| |
| void fixChildren (Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu [] menus) { |
| oldShell.fixShell (newShell, this); |
| oldDecorations.fixDecorations (newDecorations, this, menus); |
| } |
| |
| /** |
| * In some situations, a control has a non-standard parent GdkWindow (Note gDk, not gTk). |
| * E.g, an TreeEditor who's parent is a Tree should have the Tree Viewer's inner bin as parent window. |
| * |
| * Note, composites should treat this differently and take child controls into consideration. |
| */ |
| void fixParentGdkResource() { |
| // Changes to this method should be verified via |
| // org.eclipse.swt.tests.gtk/*/Bug510803_TabFolder_TreeEditor_Regression.java (part one) |
| parent.setParentGdkResource(this); |
| } |
| |
| /** |
| * Native gtkwidget re-parenting in SWT on Gtk3 needs to be handled in a special way because |
| * some controls have non-standard GdkWindow as parents. (E.g ControlEditors), and other controls |
| * like TabItem and ExpandBar use reparenting to preserve proper hierarchy for correct event traversal (like dnd). |
| * |
| * Note, GdkWindows != GtkWindows. |
| * |
| * You should never call gtk_widget_reparent() directly or reparent widgets outside this method, |
| * otherwise you can break TabItem/TreeEditors. |
| * |
| * @param control that should be reparented. |
| * @param newParentHandle pointer/handle to the new GtkWidget parent. |
| */ |
| static void gtk_widget_reparent (Control control, long newParentHandle) { |
| // Changes to this method should be verified via both parts in: |
| // org.eclipse.swt.tests.gtk/*/Bug510803_TabFolder_TreeEditor_Regression.java |
| long widget = control.topHandle(); |
| long parentContainer = GTK.gtk_widget_get_parent (widget); |
| assert parentContainer != 0 : "Improper use of Control.gtk_widget_reparent. Widget currently has no parent."; |
| if (parentContainer != 0) { |
| |
| if (GTK.GTK4) { |
| OS.g_object_ref(widget); |
| OS.swt_fixed_remove(parentContainer, widget); |
| OS.swt_fixed_add(newParentHandle, widget); |
| OS.g_object_unref(widget); |
| } else { |
| // gtk_widget_reparent (..) is deprecated as of Gtk 3.14 and removed in Gtk4. |
| // However, the current alternative of removing/adding widget from/to a container causes errors. (see note below). |
| // TODO - research a better way to reparent. See 534089. |
| GTK3.gtk_widget_reparent(widget, newParentHandle); |
| |
| // Removing/Adding containers doesn't seem to reparent sub-gdkWindows properly and throws errors. |
| // Steps to reproduce: |
| // - From bug 534089, download the first attachment plugin: "Plug-in to reproduce the problem with" |
| // - Import it into your eclipse. Launch a child eclipse with this plugin. Ensure child workspace is cleaned upon launch so that you see welcome screen. |
| // - Upon closing the welcome screen, you will see an eclipse error message: "org.eclipse.swt.SWTError: No more handles" |
| // - The following is printed into the console: 'gdk_window_new(): parent is destroyed' |
| // After some research, I found that gtk_widget_repartent(..) also reparents sub-windows, but moving widget between containers doesn't do this, |
| // This seems to leave some gdkWindows with incorrect parents. |
| // OS.g_object_ref (widget); |
| // GTK.gtk_container_remove (parentContainer, widget); |
| // GTK.gtk_container_add (newParentHandle, widget); |
| // OS.g_object_unref (widget); |
| |
| control.fixParentGdkResource(); |
| } |
| } |
| } |
| |
| void fixModal(long group, long modalGroup) { |
| } |
| |
| /** |
| * Forces the receiver to have the <em>keyboard focus</em>, causing |
| * all keyboard events to be delivered to it. |
| * |
| * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #setFocus |
| */ |
| public boolean forceFocus () { |
| checkWidget(); |
| if (display.focusEvent == SWT.FocusOut) return false; |
| Shell shell = getShell (); |
| shell.setSavedFocus (this); |
| if (!isEnabled () || !isVisible ()) return false; |
| shell.bringToTop (false); |
| return forceFocus (focusHandle ()); |
| } |
| |
| boolean forceFocus (long focusHandle) { |
| if (GTK.gtk_widget_has_focus (focusHandle)) return true; |
| /* When the control is zero sized it must be realized */ |
| GTK.gtk_widget_realize (focusHandle); |
| GTK.gtk_widget_grab_focus (focusHandle); |
| // widget could be disposed at this point |
| if (isDisposed ()) return false; |
| Shell shell = getShell (); |
| long shellHandle = shell.shellHandle; |
| long handle = GTK.gtk_window_get_focus (shellHandle); |
| while (handle != 0) { |
| if (handle == focusHandle) { |
| /* Cancel any previous ignoreFocus requests */ |
| display.ignoreFocus = false; |
| return true; |
| } |
| Widget widget = display.getWidget (handle); |
| if (widget != null && widget instanceof Control) { |
| return widget == this; |
| } |
| handle = GTK.gtk_widget_get_parent (handle); |
| } |
| return false; |
| } |
| |
| /** |
| * Returns the receiver's background color. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * For example, on some versions of Windows the background of a TabFolder, |
| * is a gradient rather than a solid color. |
| * </p> |
| * @return the background color |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Color getBackground () { |
| checkWidget(); |
| Color color; |
| if (backgroundAlpha == 0) { |
| color = Color.gtk_new (display, this.getBackgroundGdkRGBA (), 0); |
| return color; |
| } else { |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| return Color.gtk_new (display, control.getBackgroundGdkRGBA (), backgroundAlpha); |
| } |
| } |
| |
| GdkRGBA getBackgroundGdkRGBA () { |
| return getBgGdkRGBA (); |
| } |
| |
| /** |
| * Returns the receiver's background image. |
| * |
| * @return the background image |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public Image getBackgroundImage () { |
| checkWidget (); |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| return control.backgroundImage; |
| } |
| |
| GdkRGBA getContextBackgroundGdkRGBA () { |
| if ((state & BACKGROUND) == 0) { |
| return defaultBackground(); |
| } |
| if (provider != 0) { |
| return display.gtk_css_parse_background (display.gtk_css_provider_to_string(provider), null); |
| } else { |
| return defaultBackground(); |
| } |
| } |
| |
| GdkRGBA getContextColorGdkRGBA () { |
| return display.gtk_css_parse_foreground(display.gtk_css_provider_to_string(provider), null); |
| } |
| |
| GdkRGBA getBgGdkRGBA () { |
| return getContextBackgroundGdkRGBA (); |
| } |
| |
| GdkRGBA getBaseGdkRGBA () { |
| return getContextBackgroundGdkRGBA (); |
| } |
| |
| /** |
| * Returns the receiver's border width in points. |
| * |
| * @return the border width |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getBorderWidth () { |
| return DPIUtil.autoScaleDown(getBorderWidthInPixels()); |
| } |
| |
| int getBorderWidthInPixels () { |
| checkWidget(); |
| return 0; |
| } |
| |
| int getClientWidth () { |
| if (handle == 0 || (state & ZERO_WIDTH) != 0) return 0; |
| GtkAllocation allocation = new GtkAllocation(); |
| GTK.gtk_widget_get_allocation (handle, allocation); |
| return allocation.width; |
| } |
| |
| /** |
| * Returns the receiver's cursor, or null if it has not been set. |
| * <p> |
| * When the mouse pointer passes over a control its appearance |
| * is changed to match the control's cursor. |
| * </p> |
| * |
| * @return the receiver's cursor or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.3 |
| */ |
| public Cursor getCursor () { |
| checkWidget (); |
| return cursor; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is detecting |
| * drag gestures, and <code>false</code> otherwise. |
| * |
| * @return the receiver's drag detect state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.3 |
| */ |
| public boolean getDragDetect () { |
| checkWidget (); |
| return (state & DRAG_DETECT) != 0; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled, and |
| * <code>false</code> otherwise. A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * |
| * @return the receiver's enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #isEnabled |
| */ |
| public boolean getEnabled () { |
| checkWidget (); |
| return (state & DISABLED) == 0; |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information. |
| * |
| * @return the receiver's font |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Font getFont () { |
| checkWidget(); |
| return font != null ? font : defaultFont (); |
| } |
| |
| /** |
| * @return A newly allocated <code>PangoFontDescription*</code>, caller |
| * must free it with {@link OS#pango_font_description_free}. |
| */ |
| long getFontDescription () { |
| long fontHandle = fontHandle (); |
| long [] fontDesc = new long [1]; |
| long context = GTK.gtk_widget_get_style_context (fontHandle); |
| if ("ppc64le".equals(System.getProperty("os.arch"))) { |
| // Unlike 'gtk_style_context_get()', 'gtk_style_context_get_font()' |
| // returns pointer owned by GTK. The workaround is to make a copy of the data. |
| long gtkOwnedPointer = GTK.gtk_style_context_get_font(context, GTK.GTK_STATE_FLAG_NORMAL); |
| return OS.pango_font_description_copy(gtkOwnedPointer); |
| } else if (GTK.GTK4) { |
| GTK.gtk_style_context_get(context, GTK.gtk_style_property_font, fontDesc, 0); |
| return fontDesc [0]; |
| } else { |
| GTK.gtk_style_context_save(context); |
| GTK.gtk_style_context_set_state(context, GTK.GTK_STATE_FLAG_NORMAL); |
| GTK.gtk_style_context_get(context, GTK.GTK_STATE_FLAG_NORMAL, GTK.gtk_style_property_font, fontDesc, 0); |
| GTK.gtk_style_context_restore(context); |
| return fontDesc [0]; |
| } |
| } |
| |
| /** |
| * Returns the foreground color that the receiver will use to draw. |
| * |
| * @return the receiver's foreground color |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Color getForeground () { |
| checkWidget(); |
| Color color; |
| color = Color.gtk_new (display, getForegroundGdkRGBA ()); |
| return color; |
| } |
| |
| GdkRGBA getForegroundGdkRGBA () { |
| return getContextColorGdkRGBA(); |
| } |
| |
| Point getIMCaretPos () { |
| return new Point (0, 0); |
| } |
| |
| /** |
| * Returns layout data which is associated with the receiver. |
| * |
| * @return the receiver's layout data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Object getLayoutData () { |
| checkWidget(); |
| return layoutData; |
| } |
| |
| /** |
| * Returns the receiver's pop up menu if it has one, or null |
| * if it does not. All controls may optionally have a pop up |
| * menu that is displayed when the user requests one for |
| * the control. The sequence of key strokes, button presses |
| * and/or button releases that are used to request a pop up |
| * menu is platform specific. |
| * |
| * @return the receiver's menu |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Menu getMenu () { |
| checkWidget(); |
| return menu; |
| } |
| |
| /** |
| * Returns the receiver's monitor. |
| * |
| * @return the receiver's monitor |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.0 |
| */ |
| public Monitor getMonitor () { |
| checkWidget (); |
| Monitor[] monitors = display.getMonitors (); |
| if (GTK.GTK_VERSION >= OS.VERSION(3, 22, 0)) { |
| long display = GDK.gdk_display_get_default (); |
| if (display != 0) { |
| long monitor; |
| if (GTK.GTK4) { |
| monitor = GDK.gdk_display_get_monitor_at_surface(display, paintSurface ()); |
| } else { |
| monitor = GDK.gdk_display_get_monitor_at_window(display, paintWindow ()); |
| } |
| long toCompare; |
| for (int i = 0; i < monitors.length; i++) { |
| toCompare = GDK.gdk_display_get_monitor(display, i); |
| if (toCompare == monitor) { |
| return monitors[i]; |
| } |
| } |
| } |
| } else { |
| long screen = GDK.gdk_screen_get_default (); |
| if (screen != 0) { |
| int monitorNumber = GDK.gdk_screen_get_monitor_at_window (screen, paintWindow ()); |
| if (monitorNumber >= 0 && monitorNumber < monitors.length) { |
| return monitors [monitorNumber]; |
| } |
| } |
| } |
| return display.getPrimaryMonitor (); |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>Composite</code> |
| * or null when the receiver is a shell that was created with null or |
| * a display for a parent. |
| * |
| * @return the receiver's parent |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Composite getParent () { |
| checkWidget(); |
| return parent; |
| } |
| |
| Control [] getPath () { |
| int count = 0; |
| Shell shell = getShell (); |
| Control control = this; |
| while (control != shell) { |
| count++; |
| control = control.parent; |
| } |
| control = this; |
| Control [] result = new Control [count]; |
| while (control != shell) { |
| result [--count] = control; |
| control = control.parent; |
| } |
| return result; |
| } |
| |
| /** |
| * Returns the region that defines the shape of the control, |
| * or null if the control has the default shape. |
| * |
| * @return the region that defines the shape of the shell (or null) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public Region getRegion () { |
| checkWidget (); |
| return region; |
| } |
| |
| /** |
| * Returns the receiver's shell. For all controls other than |
| * shells, this simply returns the control's nearest ancestor |
| * shell. Shells return themselves, even if they are children |
| * of other shells. |
| * |
| * @return the receiver's shell |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getParent |
| */ |
| public Shell getShell() { |
| checkWidget(); |
| return _getShell(); |
| } |
| |
| Shell _getShell() { |
| return parent._getShell(); |
| } |
| |
| /** |
| * Returns the receiver's tool tip text, or null if it has |
| * not been set. |
| * |
| * @return the receiver's tool tip text |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public String getToolTipText () { |
| checkWidget(); |
| return toolTipText; |
| } |
| |
| /** |
| * Returns <code>true</code> if this control is set to send touch events, or |
| * <code>false</code> if it is set to send gesture events instead. This method |
| * also returns <code>false</code> if a touch-based input device is not detected |
| * (this can be determined with <code>Display#getTouchEnabled()</code>). Use |
| * {@link #setTouchEnabled(boolean)} to switch the events that a control sends |
| * between touch events and gesture events. |
| * |
| * @return <code>true</code> if the control is set to send touch events, or <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #setTouchEnabled |
| * @see Display#getTouchEnabled |
| * |
| * @since 3.7 |
| */ |
| public boolean getTouchEnabled() { |
| checkWidget(); |
| return false; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is visible, and |
| * <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the receiver's visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean getVisible () { |
| checkWidget(); |
| return (state & HIDDEN) == 0; |
| } |
| |
| Point getThickness (long widget) { |
| int xthickness = 0, ythickness = 0; |
| GtkBorder tmp = new GtkBorder(); |
| long context = GTK.gtk_widget_get_style_context (widget); |
| int state_flag = GTK.gtk_widget_get_state_flags(widget); |
| gtk_style_context_get_padding(context, state_flag, tmp); |
| GTK.gtk_style_context_save (context); |
| GTK.gtk_style_context_add_class (context, GTK.GTK_STYLE_CLASS_FRAME); |
| xthickness += tmp.left; |
| ythickness += tmp.top; |
| int state = GTK.gtk_widget_get_state_flags(widget); |
| gtk_style_context_get_border (context, state, tmp); |
| xthickness += tmp.left; |
| ythickness += tmp.top; |
| GTK.gtk_style_context_restore (context); |
| return new Point (xthickness, ythickness); |
| } |
| |
| void gtk_style_context_get_padding(long context, int state, GtkBorder padding) { |
| if (GTK.GTK4) { |
| GTK.gtk_style_context_get_padding(context, padding); |
| } else { |
| GTK.gtk_style_context_get_padding(context, state, padding); |
| } |
| } |
| |
| void gtk_style_context_get_border (long context, int state, GtkBorder padding) { |
| if (GTK.GTK4) { |
| GTK.gtk_style_context_get_border(context, padding); |
| } else { |
| GTK.gtk_style_context_get_border(context, state, padding); |
| } |
| } |
| |
| /** |
| * Handling multi-press event on GTK4 |
| */ |
| @Override |
| void gtk_gesture_press_event (long gesture, int n_press, double x, double y, long event) { |
| mouseDown = true; |
| dragBegun = false; |
| |
| if ((state & MENU) == 0) { |
| int eventButton = GDK.gdk_button_event_get_button(event); |
| |
| if (eventButton == 3) { |
| showMenu ((int)x, (int)y); |
| } |
| } |
| |
| int eventButton = GDK.gdk_button_event_get_button(event); |
| int eventTime = GDK.gdk_event_get_time(event); |
| int eventState = GDK.gdk_event_get_modifier_state(event); |
| |
| sendMouseEvent(SWT.MouseDown, eventButton, n_press, 0, false, eventTime, x, y, true, eventState); |
| } |
| |
| @Override |
| void gtk_gesture_release_event (long gesture, int n_press, double x, double y, long event) { |
| mouseDown = false; |
| |
| double [] eventX = new double [1]; |
| double [] eventY = new double [1]; |
| GDK.gdk_event_get_position(event, eventX, eventY); |
| |
| int eventButton = GDK.gdk_button_event_get_button(event); |
| int eventTime = GDK.gdk_event_get_time(event); |
| int eventState = GDK.gdk_event_get_modifier_state(event); |
| |
| lastInput.x = (int) eventX[0]; |
| lastInput.y = (int) eventY[0]; |
| if (containedInRegion(lastInput.x, lastInput.y)) return; |
| sendMouseEvent(SWT.MouseUp, eventButton, display.clickCount, 0, false, eventTime, 0, 0, false, eventState); |
| } |
| |
| @Override |
| long gtk_button_press_event (long widget, long event) { |
| return gtk_button_press_event (widget, event, true); |
| } |
| |
| long gtk_button_press_event (long widget, long event, boolean sendMouseDown) { |
| mouseDown = true; |
| dragBegun = false; |
| |
| double [] eventX = new double [1]; |
| double [] eventY = new double [1]; |
| GDK.gdk_event_get_coords(event, eventX, eventY); |
| |
| int eventType = GDK.gdk_event_get_event_type(event); |
| |
| int [] eventButton = new int [1]; |
| int [] eventState = new int[1]; |
| GDK.gdk_event_get_button(event, eventButton); |
| GDK.gdk_event_get_state(event, eventState); |
| |
| int eventTime = GDK.gdk_event_get_time(event); |
| |
| double [] eventRX = new double [1]; |
| double [] eventRY = new double [1]; |
| GDK.gdk_event_get_root_coords(event, eventRX, eventRY); |
| |
| lastInput.x = (int) eventX[0]; |
| lastInput.y = (int) eventY[0]; |
| if (containedInRegion(lastInput.x, lastInput.y)) return 0; |
| if (eventType == GDK.GDK_3BUTTON_PRESS) return 0; |
| |
| /* |
| * When a shell is created with SWT.ON_TOP and SWT.NO_FOCUS, |
| * do not activate the shell when the user clicks on the |
| * the client area or on the border or a control within the |
| * shell that does not take focus. |
| */ |
| Shell shell = _getShell (); |
| if (((shell.style & SWT.ON_TOP) != 0) && (((shell.style & SWT.NO_FOCUS) == 0) || ((style & SWT.NO_FOCUS) == 0))) { |
| shell.forceActive(); |
| } |
| long result = 0; |
| if (eventType == GDK.GDK_BUTTON_PRESS) { |
| boolean dragging = false; |
| display.clickCount = 1; |
| long nextEvent = GDK.gdk_event_peek(); |
| if (nextEvent != 0) { |
| int peekedEventType = GDK.GDK_EVENT_TYPE (nextEvent); |
| if (peekedEventType == GDK.GDK_2BUTTON_PRESS) display.clickCount = 2; |
| if (peekedEventType == GDK.GDK_3BUTTON_PRESS) display.clickCount = 3; |
| gdk_event_free (nextEvent); |
| } |
| /* |
| * Feature in GTK: DND detection for X.11 & Wayland support is done through motion notify event |
| * instead of mouse click event. See Bug 503431. |
| */ |
| if (OS.isX11()) { // Wayland |
| if ((state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect)) { |
| if (eventButton[0] == 1) { |
| boolean [] consume = new boolean [1]; |
| if (dragDetect ((int) eventX[0], (int) eventY[0], true, true, consume)) { |
| dragging = true; |
| if (consume [0]) result = 1; |
| } |
| if (isDisposed ()) return 1; |
| } |
| } |
| } |
| if (sendMouseDown) { |
| boolean mouseEventSent = !sendMouseEvent(SWT.MouseDown, eventButton[0], display.clickCount, 0, false, eventTime, eventRX[0], eventRY[0], false, eventState[0]); |
| |
| if (mouseEventSent) { |
| result = 1; |
| } |
| } |
| if (isDisposed ()) return 1; |
| /* |
| * Feature in GTK: DND detection for X.11 & Wayland support is done through motion notify event |
| * instead of mouse click event. See Bug 503431. |
| */ |
| if (OS.isX11()) { // Wayland |
| if (dragging) { |
| Point scaledEvent = DPIUtil.autoScaleDown(new Point((int)eventX[0], (int) eventY[0])); |
| sendDragEvent (eventButton[0], eventState[0], scaledEvent.x, scaledEvent.y, false); |
| if (isDisposed ()) return 1; |
| } |
| } |
| /* |
| * Pop up the context menu in the button press event for widgets |
| * that have default operating system menus in order to stop the |
| * operating system from displaying the menu if necessary. |
| */ |
| if ((state & MENU) != 0) { |
| if (eventButton[0] == 3) { |
| if (showMenu ((int)eventRX[0], (int)eventRY[0])) { |
| result = 1; |
| } |
| } |
| } |
| } else { |
| display.clickCount = 2; |
| result = sendMouseEvent (SWT.MouseDoubleClick, eventButton[0], display.clickCount, 0, false, eventTime, eventRX[0],eventRY[0], false, eventState[0]) ? 0 : 1; |
| if (isDisposed ()) return 1; |
| } |
| if (!shell.isDisposed ()) shell.setActiveControl (this, SWT.MouseDown); |
| return result; |
| } |
| |
| @Override |
| long gtk_button_release_event (long widget, long event) { |
| mouseDown = false; |
| |
| double[] eventX = new double[1]; |
| double[] eventY = new double[1]; |
| GDK.gdk_event_get_coords(event, eventX, eventY); |
| |
| int[] eventButton = new int[1]; |
| int[] eventState = new int[1]; |
| GDK.gdk_event_get_button(event, eventButton); |
| GDK.gdk_event_get_state(event, eventState); |
| |
| int eventTime = GDK.gdk_event_get_time(event); |
| |
| double[] eventRX = new double[1]; |
| double[] eventRY = new double[1]; |
| GDK.gdk_event_get_root_coords(event, eventRX, eventRY); |
| |
| lastInput.x = (int) eventX[0]; |
| lastInput.y = (int) eventY[0]; |
| if (containedInRegion(lastInput.x, lastInput.y)) return 0; |
| return sendMouseEvent(SWT.MouseUp, eventButton[0], display.clickCount, 0, false, eventTime, eventRX[0], eventRY[0], false, eventState[0]) ? 0 : 1; |
| } |
| |
| @Override |
| long gtk_commit (long imcontext, long text) { |
| if (text == 0) return 0; |
| int length = C.strlen (text); |
| if (length == 0) return 0; |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, text, length); |
| char [] chars = Converter.mbcsToWcs (buffer); |
| sendIMKeyEvent (SWT.KeyDown, 0, chars); |
| return 0; |
| } |
| |
| @Override |
| long gtk_enter_notify_event (long widget, long event) { |
| if (GTK.GTK4) { |
| if (display.currentControl == this) return 0; |
| |
| if (display.currentControl != null && !display.currentControl.isDisposed ()) { |
| display.removeMouseHoverTimeout (display.currentControl.handle); |
| display.currentControl.sendMouseEvent (SWT.MouseExit, 0, 0, 0, 0, false, 0); |
| } |
| if (!isDisposed ()) { |
| display.currentControl = this; |
| return sendMouseEvent (SWT.MouseEnter, 0, 0, 0, 0, false, 0) ? 0 : 1; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Feature in GTK. Children of a shell will inherit and display the shell's |
| * tooltip if they do not have a tooltip of their own. The fix is to use the |
| * new tooltip API in GTK 2.12 to null the shell's tooltip when the control |
| * being entered does not have any tooltip text set. |
| */ |
| byte [] buffer = null; |
| if (toolTipText != null && toolTipText.length() != 0) { |
| char [] chars = fixMnemonic (toolTipText, false, true); |
| buffer = Converter.wcsToMbcs (chars, true); |
| } |
| long toolHandle = getShell().handle; |
| GTK.gtk_widget_set_tooltip_text (toolHandle, buffer); |
| |
| if (display.currentControl == this) return 0; |
| int [] state = new int [1]; |
| double [] eventX = new double [1]; |
| double [] eventY = new double [1]; |
| if (GTK.GTK4) { |
| state[0] = GDK.gdk_event_get_modifier_state(event); |
| GDK.gdk_event_get_position(event, eventX, eventY); |
| } else { |
| GDK.gdk_event_get_state(event, state); |
| GDK.gdk_event_get_coords(event, eventX, eventY); |
| } |
| |
| int time = GDK.gdk_event_get_time(event); |
| |
| double [] eventRX = new double [1]; |
| double [] eventRY = new double [1]; |
| GDK.gdk_event_get_root_coords(event, eventRX, eventRY); |
| |
| lastInput.x = (int) eventX[0]; |
| lastInput.y = (int) eventY[0]; |
| if (containedInRegion(lastInput.x, lastInput.y)) return 0; |
| |
| GdkEventCrossing gdkEvent = new GdkEventCrossing (); |
| long childGdkResource = 0; |
| int [] crossingMode = new int[1]; |
| if (GTK.GTK4) { |
| crossingMode[0] = GDK.gdk_crossing_event_get_mode(event); |
| } else { |
| OS.memmove(gdkEvent, event, GdkEventCrossing.sizeof); |
| crossingMode[0] = gdkEvent.mode; |
| childGdkResource = gdkEvent.subwindow; |
| } |
| |
| /* |
| * It is possible to send out too many enter/exit events if entering a |
| * control through a subwindow. The fix is to return without sending any |
| * events if the GdkEventCrossing subwindow field is set and the control |
| * requests to check the field. |
| */ |
| if (childGdkResource != 0 && checkSubwindow ()) return 0; |
| if (crossingMode [0] != GDK.GDK_CROSSING_NORMAL && crossingMode[0] != GDK.GDK_CROSSING_UNGRAB) return 0; |
| if ((state[0] & (GDK.GDK_BUTTON1_MASK | GDK.GDK_BUTTON2_MASK | GDK.GDK_BUTTON3_MASK)) != 0) return 0; |
| if (display.currentControl != null && !display.currentControl.isDisposed ()) { |
| display.removeMouseHoverTimeout (display.currentControl.handle); |
| display.currentControl.sendMouseEvent (SWT.MouseExit, 0, time, eventRX[0], eventRY[0], false, state[0]); |
| } |
| if (!isDisposed ()) { |
| display.currentControl = this; |
| return sendMouseEvent (SWT.MouseEnter, 0, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1; |
| } |
| return 0; |
| } |
| |
| boolean checkSubwindow () { |
| return false; |
| } |
| |
| @Override |
| long gtk_event_after (long widget, long gdkEvent) { |
| int eventType = GDK.gdk_event_get_event_type(gdkEvent); |
| eventType = fixGdkEventTypeValues(eventType); |
| switch (eventType) { |
| case GDK.GDK_BUTTON_PRESS: { |
| if (widget != eventHandle ()) break; |
| /* |
| * Pop up the context menu in the event_after signal to allow |
| * the widget to process the button press. This allows widgets |
| * such as GtkTreeView to select items before a menu is shown. |
| */ |
| if ((state & MENU) == 0) { |
| double [] eventRX = new double [1]; |
| double [] eventRY = new double [1]; |
| GDK.gdk_event_get_root_coords(gdkEvent, eventRX, eventRY); |
| |
| int [] eventButton = new int [1]; |
| if (GTK.GTK4) { |
| eventButton[0] = GDK.gdk_button_event_get_button(gdkEvent); |
| } else { |
| GDK.gdk_event_get_button(gdkEvent, eventButton); |
| } |
| |
| if (eventButton[0] == 3) { |
| showMenu ((int) eventRX[0], (int) eventRY[0]); |
| } |
| } |
| break; |
| } |
| case GDK.GDK_FOCUS_CHANGE: { |
| if (!isFocusHandle (widget)) break; |
| boolean [] focusIn = new boolean [1]; |
| if (GTK.GTK4) { |
| focusIn[0] = GDK.gdk_focus_event_get_in(gdkEvent); |
| } else { |
| GdkEventFocus gdkEventFocus = new GdkEventFocus (); |
| OS.memmove (gdkEventFocus, gdkEvent, GdkEventFocus.sizeof); |
| focusIn[0] = gdkEventFocus.in != 0; |
| } |
| |
| /* |
| * Feature in GTK. The GTK combo box popup under some window managers |
| * is implemented as a GTK_MENU. When it pops up, it causes the combo |
| * box to lose focus when focus is received for the menu. The |
| * fix is to check the current grab handle and see if it is a GTK_MENU |
| * and ignore the focus event when the menu is both shown and hidden. |
| * |
| * NOTE: This code runs for all menus. |
| */ |
| Display display = this.display; |
| if (focusIn[0]) { |
| if (display.ignoreFocus) { |
| display.ignoreFocus = false; |
| break; |
| } |
| } else { |
| display.ignoreFocus = false; |
| long grabHandle = GTK3.gtk_grab_get_current (); |
| if (grabHandle != 0) { |
| if (OS.G_OBJECT_TYPE (grabHandle) == GTK3.GTK_TYPE_MENU ()) { |
| display.ignoreFocus = true; |
| break; |
| } |
| } |
| } |
| sendFocusEvent (focusIn[0] ? SWT.FocusIn : SWT.FocusOut); |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * Copies the region at the Cairo level, as we need to re-use these resources |
| * after the Region object is disposed. |
| * |
| * @param region the Region object to copy to this Control |
| */ |
| void cairoCopyRegion (Region region) { |
| if (region == null || region.isDisposed() || region.handle == 0) return; |
| regionHandle = Cairo.cairo_region_copy(region.handle); |
| return; |
| } |
| |
| void cairoDisposeRegion () { |
| if (regionHandle != 0) Cairo.cairo_region_destroy(regionHandle); |
| if (eventRegion != 0) Cairo.cairo_region_destroy(eventRegion); |
| regionHandle = 0; |
| eventRegion = 0; |
| } |
| /** |
| * Convenience method that applies a region to the Control using cairo_clip. |
| * |
| * @param cairo the cairo context to apply the region to |
| */ |
| void cairoClipRegion (long cairo) { |
| GdkRectangle rect = new GdkRectangle (); |
| GDK.gdk_cairo_get_clip_rectangle (cairo, rect); |
| long regionHandle = this.regionHandle; |
| // Disposal check just in case |
| if (regionHandle == 0) { |
| drawRegion = false; |
| return; |
| } |
| /* |
| * These gdk_region_* functions actually map to the proper |
| * cairo_* functions in os.h. |
| */ |
| cairo_rectangle_int_t cairoRect = new cairo_rectangle_int_t(); |
| cairoRect.convertFromGdkRectangle(rect); |
| long actualRegion = Cairo.cairo_region_create_rectangle(cairoRect); |
| Cairo.cairo_region_subtract(actualRegion, regionHandle); |
| // Draw the Shell bg using cairo, only if it's a different color |
| Shell shell = getShell(); |
| Color shellBg = shell.getBackground(); |
| if (shellBg != this.getBackground()) { |
| GdkRGBA rgba = shellBg.handle; |
| Cairo.cairo_set_source_rgba (cairo, rgba.red, rgba.green, rgba.blue, rgba.alpha); |
| } else { |
| Cairo.cairo_set_source_rgba (cairo, 0.0, 0.0, 0.0, 0.0); |
| } |
| GDK.gdk_cairo_region(cairo, actualRegion); |
| Cairo.cairo_clip(cairo); |
| Cairo.cairo_paint(cairo); |
| eventRegion = actualRegion; |
| } |
| |
| @Override |
| long gtk_draw (long widget, long cairo) { |
| if (GTK.GTK4) { |
| if (!hooksPaint()) return 0; |
| |
| GCData data = new GCData(); |
| data.cairo = cairo; |
| GC gc = GC.gtk_new(this, data); |
| |
| Event event = new Event(); |
| event.count = 1; |
| event.gc = gc; |
| |
| drawWidget(gc); |
| sendEvent(SWT.Paint, event); |
| gc.dispose(); |
| event.gc = null; |
| |
| return 0; |
| } |
| |
| if (checkScaleFactor) { |
| long surface = Cairo.cairo_get_target(cairo); |
| if (surface != 0) { |
| double [] sx = new double [1]; |
| double [] sy = new double [1]; |
| Cairo.cairo_surface_get_device_scale(surface, sx, sy); |
| long display = GDK.gdk_display_get_default(); |
| long monitor = GDK.gdk_display_get_monitor_at_point(display, 0, 0); |
| int scale = GDK.gdk_monitor_get_scale_factor(monitor); |
| autoScale = !(scale == Math.round(sx[0])); |
| checkScaleFactor = false; |
| } |
| } |
| if ((state & OBSCURED) != 0) return 0; |
| GdkRectangle rect = new GdkRectangle (); |
| GDK.gdk_cairo_get_clip_rectangle (cairo, rect); |
| /* |
| * Modify the drawing of the widget with cairo_clip. |
| * Doesn't modify input handling at this time. |
| * See bug 529431. |
| */ |
| if (drawRegion) { |
| cairoClipRegion(cairo); |
| } |
| if (!hooksPaint ()) return 0; |
| Event event = new Event (); |
| event.count = 1; |
| Rectangle eventBounds = DPIUtil.autoScaleDown (new Rectangle (rect.x, rect.y, rect.width, rect.height)); |
| if ((style & SWT.MIRRORED) != 0) eventBounds.x = DPIUtil.autoScaleDown (getClientWidth ()) - eventBounds.width - eventBounds.x; |
| event.setBounds (eventBounds); |
| GCData data = new GCData (); |
| /* |
| * Pass the region into the GCData so that GC.fill* methods can be aware of the region |
| * and clip themselves accordingly. Only relevant on GTK3.10+, see bug 475784. |
| */ |
| if (drawRegion) data.regionSet = eventRegion; |
| // data.damageRgn = gdkEvent.region; |
| data.cairo = cairo; |
| GC gc = event.gc = GC.gtk_new (this, data); |
| // Note: use GC#setClipping(x,y,width,height) because GC#setClipping(Rectangle) got broken by bug 446075 |
| gc.setClipping (eventBounds.x, eventBounds.y, eventBounds.width, eventBounds.height); |
| drawWidget (gc); |
| sendEvent (SWT.Paint, event); |
| gc.dispose (); |
| event.gc = null; |
| return 0; |
| } |
| |
| @Override |
| long gtk_focus (long widget, long directionType) { |
| /* Stop GTK traversal for every widget */ |
| return 1; |
| } |
| |
| @Override |
| long gtk_focus_in_event (long widget, long event) { |
| // widget could be disposed at this point |
| if (handle != 0) { |
| Control oldControl = display.imControl; |
| if (oldControl != this) { |
| if (oldControl != null && !oldControl.isDisposed ()) { |
| long oldIMHandle = oldControl.imHandle (); |
| if (oldIMHandle != 0) GTK.gtk_im_context_reset (oldIMHandle); |
| } |
| } |
| if (hooks (SWT.KeyDown) || hooks (SWT.KeyUp)) { |
| long imHandle = imHandle (); |
| if (imHandle != 0) GTK.gtk_im_context_focus_in (imHandle); |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_focus_out_event (long widget, long event) { |
| // widget could be disposed at this point |
| if (handle != 0) { |
| if (hooks (SWT.KeyDown) || hooks (SWT.KeyUp)) { |
| long imHandle = imHandle (); |
| if (imHandle != 0) { |
| GTK.gtk_im_context_focus_out (imHandle); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_key_press_event (long widget, long event) { |
| int [] eventKeyval = new int [1]; |
| if (GTK.GTK4) { |
| eventKeyval[0] = GDK.gdk_key_event_get_keyval(event); |
| } else { |
| GDK.gdk_event_get_keyval(event, eventKeyval); |
| } |
| |
| if (!hasFocus ()) { |
| /* |
| * Feature in GTK. On AIX, the IME window deactivates the current shell and even |
| * though the widget receiving the key event is not in focus, it should filter the input in |
| * order to get it committed. The fix is to detect that the widget shell is not active |
| * and call filterKey() only. |
| */ |
| if (display.getActiveShell () == null) { |
| if (filterKey (eventKeyval[0], event)) return 1; |
| } |
| return 0; |
| } |
| if (translateMnemonic (eventKeyval[0], event)) return 1; |
| // widget could be disposed at this point |
| if (isDisposed ()) return 0; |
| |
| if (filterKey (eventKeyval[0], event)) return 1; |
| // widget could be disposed at this point |
| if (isDisposed ()) return 0; |
| |
| if (translateTraversal (event)) return 1; |
| // widget could be disposed at this point |
| if (isDisposed ()) return 0; |
| return super.gtk_key_press_event (widget, event); |
| } |
| |
| @Override |
| long gtk_key_release_event (long widget, long event) { |
| if (!hasFocus ()) return 0; |
| long imHandle = imHandle (); |
| if (imHandle != 0) { |
| if (GTK.GTK4) { |
| if (GTK4.gtk_im_context_filter_keypress(imHandle, event)) return 1; |
| } else { |
| if (GTK3.gtk_im_context_filter_keypress(imHandle, event)) return 1; |
| } |
| } |
| return super.gtk_key_release_event (widget, event); |
| } |
| |
| @Override |
| long gtk_leave_notify_event (long widget, long event) { |
| if (GTK.GTK4) { |
| if (display.currentControl != this) return 0; |
| |
| display.removeMouseHoverTimeout (handle); |
| int result = 0; |
| if (sendLeaveNotify () || display.getCursorControl () == null) { |
| result = sendMouseEvent (SWT.MouseExit, 0, 0, 0, 0, false, 0) ? 0 : 1; |
| display.currentControl = null; |
| } |
| return result; |
| } |
| |
| |
| if (display.currentControl != this) return 0; |
| int [] state = new int [1]; |
| double [] eventX = new double [1]; |
| double [] eventY = new double [1]; |
| if (GTK.GTK4) { |
| state[0] = GDK.gdk_event_get_modifier_state(event); |
| GDK.gdk_event_get_position(event, eventX, eventY); |
| } else { |
| GDK.gdk_event_get_state(event, state); |
| GDK.gdk_event_get_coords(event, eventX, eventY); |
| } |
| |
| int time = GDK.gdk_event_get_time(event); |
| |
| double [] eventRX = new double [1]; |
| double [] eventRY = new double [1]; |
| GDK.gdk_event_get_root_coords(event, eventRX, eventRY); |
| |
| lastInput.x = (int) eventX[0]; |
| lastInput.y = (int) eventY[0]; |
| if (containedInRegion(lastInput.x, lastInput.y)) return 0; |
| |
| GdkEventCrossing gdkEvent = new GdkEventCrossing (); |
| int [] crossingMode = new int[1]; |
| if (GTK.GTK4) { |
| crossingMode[0] = GDK.gdk_crossing_event_get_mode(event); |
| } else { |
| OS.memmove(gdkEvent, event, GdkEventCrossing.sizeof); |
| crossingMode[0] = gdkEvent.mode; |
| } |
| |
| display.removeMouseHoverTimeout (handle); |
| int result = 0; |
| if (sendLeaveNotify () || display.getCursorControl () == null) { |
| if (crossingMode[0] != GDK.GDK_CROSSING_NORMAL && crossingMode[0] != GDK.GDK_CROSSING_UNGRAB) return 0; |
| if ((state[0] & (GDK.GDK_BUTTON1_MASK | GDK.GDK_BUTTON2_MASK | GDK.GDK_BUTTON3_MASK)) != 0) return 0; |
| result = sendMouseEvent (SWT.MouseExit, 0, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1; |
| display.currentControl = null; |
| } |
| return result; |
| } |
| |
| @Override |
| long gtk_mnemonic_activate (long widget, long arg1) { |
| int result = 0; |
| long eventPtr = GTK3.gtk_get_current_event (); |
| if (eventPtr != 0) { |
| int type = GDK.gdk_event_get_event_type(eventPtr); |
| type = fixGdkEventTypeValues(type); |
| if (type == GDK.GDK_KEY_PRESS) { |
| Control focusControl = display.getFocusControl (); |
| long focusHandle = focusControl != null ? focusControl.focusHandle () : 0; |
| if (focusHandle != 0) { |
| display.mnemonicControl = this; |
| GTK3.gtk_widget_event (focusHandle, eventPtr); |
| display.mnemonicControl = null; |
| } |
| result = 1; |
| } |
| gdk_event_free (eventPtr); |
| } |
| return result; |
| } |
| |
| @Override |
| long gtk_motion_notify_event (long widget, long event) { |
| int result; |
| if (mouseDown) { |
| dragBegun = true; |
| } |
| |
| double[] eventX = new double[1]; |
| double[] eventY = new double[1]; |
| if (GTK.GTK4) { |
| GDK.gdk_event_get_position(event, eventX, eventY); |
| } else { |
| GDK.gdk_event_get_coords(event, eventX, eventY); |
| } |
| |
| lastInput.x = (int)eventX[0]; |
| lastInput.y = (int)eventY[0]; |
| if (containedInRegion(lastInput.x, lastInput.y)) return 0; |
| |
| /* |
| * Feature in GTK: DND detection for X.11 & Wayland support is done through motion notify event |
| * instead of mouse click event. See Bug 503431. |
| */ |
| if (!OS.isX11()) { // Wayland |
| boolean dragging = false; |
| if ((state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect)) { |
| boolean [] consume = new boolean [1]; |
| if (dragDetect ((int) eventX[0], (int) eventY[0], true, true, consume)) { |
| dragging = true; |
| if (consume [0]) result = 1; |
| if (isDisposed ()) return 1; |
| } else { |
| } |
| } |
| if (dragging) { |
| GTK3.gtk_event_controller_handle_event(dragGesture,event); |
| int eventType = GDK.gdk_event_get_event_type(event); |
| if (eventType == GDK.GDK_3BUTTON_PRESS) return 0; |
| |
| Point scaledEvent = DPIUtil.autoScaleDown(new Point((int)eventX[0], (int) eventY[0])); |
| |
| int [] eventButton = new int [1]; |
| int [] eventState = new int [1]; |
| if (GTK.GTK4) { |
| eventButton[0] = GDK.gdk_button_event_get_button(event); |
| eventState[0] = GDK.gdk_event_get_modifier_state(event); |
| } else { |
| GDK.gdk_event_get_button(event, eventButton); |
| GDK.gdk_event_get_state(event, eventState); |
| } |
| |
| if (sendDragEvent (eventButton[0], eventState[0], scaledEvent.x, scaledEvent.y, false)){ |
| return 1; |
| } |
| } |
| } |
| |
| if (this == display.currentControl && (hooks(SWT.MouseHover) || filters(SWT.MouseHover))) { |
| display.addMouseHoverTimeout(handle); |
| } |
| |
| int time = GDK.gdk_event_get_time(event); |
| double x, y; |
| int [] state = new int [1]; |
| boolean isHint = false; |
| |
| if (GTK.GTK4) { |
| state[0] = GDK.gdk_event_get_modifier_state(event); |
| x = eventX[0]; |
| y = eventY[0]; |
| } else { |
| double [] eventRX = new double[1]; |
| double [] eventRY = new double[1]; |
| GDK.gdk_event_get_root_coords(event, eventRX, eventRY); |
| x = eventRX[0]; |
| y = eventRY[0]; |
| |
| GdkEventMotion gdkEvent = new GdkEventMotion(); |
| OS.memmove(gdkEvent, event, GdkEventMotion.sizeof); |
| state[0] = gdkEvent.state; |
| isHint = gdkEvent.is_hint != 0; |
| |
| if (isHint) { |
| int [] pointer_x = new int [1], pointer_y = new int [1], mask = new int [1]; |
| long window = eventWindow (); |
| display.getWindowPointerPosition (window, pointer_x, pointer_y, mask); |
| x = pointer_x [0]; |
| y = pointer_y [0]; |
| state[0] = mask [0]; |
| } |
| } |
| |
| if (this != display.currentControl) { |
| if (display.currentControl != null && !display.currentControl.isDisposed ()) { |
| display.removeMouseHoverTimeout(display.currentControl.handle); |
| Point pt = display.mapInPixels(this, display.currentControl, (int)x, (int)y); |
| display.currentControl.sendMouseEvent(SWT.MouseExit, 0, time, pt.x, pt.y, isHint, state[0]); |
| } |
| if (!isDisposed ()) { |
| display.currentControl = this; |
| sendMouseEvent(SWT.MouseEnter, 0, time, x, y, isHint, state[0]); |
| } |
| } |
| |
| result = sendMouseEvent(SWT.MouseMove, 0, time, x, y, isHint, state[0]) ? 0 : 1; |
| return result; |
| } |
| |
| @Override |
| long gtk_popup_menu (long widget) { |
| if (!hasFocus()) return 0; |
| int [] x = new int [1], y = new int [1]; |
| if (GTK.GTK4) { |
| /* |
| * TODO: calling gdk_window_get_device_position() with a 0 |
| * for the GdkWindow uses gdk_get_default_root_window(), |
| * which doesn't exist on GTK4. |
| */ |
| } else { |
| display.getWindowPointerPosition (0, x, y, null); |
| } |
| return showMenu (x [0], y [0], SWT.MENU_KEYBOARD) ? 1 : 0; |
| } |
| |
| @Override |
| long gtk_preedit_changed (long imcontext) { |
| display.showIMWindow (this); |
| return 0; |
| } |
| |
| @Override |
| long gtk_realize (long widget) { |
| if (!GTK.GTK4) { |
| long imHandle = imHandle (); |
| if (imHandle != 0) { |
| long window = gtk_widget_get_window (paintHandle ()); |
| GTK.gtk_im_context_set_client_window (imHandle, window); |
| } |
| } |
| if (backgroundImage != null) { |
| setBackgroundSurface (backgroundImage); |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_scroll_event (long widget, long eventPtr) { |
| long result = 0; |
| double [] eventX = new double [1]; |
| double [] eventY = new double [1]; |
| int [] state = new int [1]; |
| if (GTK.GTK4) { |
| // GTK4 Position returns NaN |
| state[0] = GDK.gdk_event_get_modifier_state(eventPtr); |
| } else { |
| GDK.gdk_event_get_coords(eventPtr, eventX, eventY); |
| GDK.gdk_event_get_state(eventPtr, state); |
| } |
| |
| double [] eventRX = new double[1]; |
| double [] eventRY = new double[1]; |
| if (GTK.GTK4) { |
| long root = GTK4.gtk_widget_get_root(widget); |
| GTK4.gtk_widget_translate_coordinates(widget, root, eventX[0], eventY[0], eventRX, eventRY); |
| } else { |
| GDK.gdk_event_get_root_coords(eventPtr, eventRX, eventRY); |
| } |
| |
| int time = GDK.gdk_event_get_time(eventPtr); |
| |
| int [] direction = new int[1]; |
| boolean fetched; |
| if (GTK.GTK4) { |
| direction[0] = GDK.gdk_scroll_event_get_direction(eventPtr); |
| fetched = direction[0] != GDK.GDK_SCROLL_SMOOTH; |
| } else { |
| fetched = GDK.gdk_event_get_scroll_direction(eventPtr, direction); |
| } |
| |
| lastInput.x = (int) eventX[0]; |
| lastInput.y = (int) eventY[0]; |
| |
| if (containedInRegion(lastInput.x, lastInput.y)) return 0; |
| |
| if (fetched) { |
| switch (direction[0]) { |
| case GDK.GDK_SCROLL_UP: |
| return sendMouseEvent (SWT.MouseWheel, 0, 3, SWT.SCROLL_LINE, true, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1; |
| case GDK.GDK_SCROLL_DOWN: |
| return sendMouseEvent (SWT.MouseWheel, 0, -3, SWT.SCROLL_LINE, true, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1; |
| case GDK.GDK_SCROLL_LEFT: |
| return sendMouseEvent (SWT.MouseHorizontalWheel, 0, 3, 0, true, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1; |
| case GDK.GDK_SCROLL_RIGHT: |
| return sendMouseEvent (SWT.MouseHorizontalWheel, 0, -3, 0, true, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1; |
| } |
| } else { |
| double[] delta_x = new double[1], delta_y = new double [1]; |
| boolean deltasAvailable; |
| if (GTK.GTK4) { |
| GDK.gdk_scroll_event_get_deltas(eventPtr, delta_x, delta_y); |
| // In GTK4, deltas is always available but zero when not GDK_SMOOTH_SCROLL |
| deltasAvailable = true; |
| } else { |
| deltasAvailable = GDK.gdk_event_get_scroll_deltas (eventPtr, delta_x, delta_y); |
| } |
| |
| if (deltasAvailable) { |
| if (delta_x [0] != 0) { |
| result = (sendMouseEvent (SWT.MouseHorizontalWheel, 0, (int)(-3 * delta_x [0]), 0, true, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1); |
| } |
| if (delta_y [0] != 0) { |
| result = (sendMouseEvent (SWT.MouseWheel, 0, (int)(-3 * delta_y [0]), SWT.SCROLL_LINE, true, time, eventRX[0], eventRY[0], false, state[0]) ? 0 : 1); |
| } |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| long gtk_show_help (long widget, long helpType) { |
| if (!hasFocus ()) return 0; |
| return sendHelpEvent (helpType) ? 1 : 0; |
| } |
| |
| @Override |
| long gtk_style_updated (long widget) { |
| if (backgroundImage != null) { |
| setBackgroundSurface (backgroundImage); |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_unrealize (long widget) { |
| if (!GTK.GTK4) { |
| long imHandle = imHandle (); |
| if (imHandle != 0) GTK.gtk_im_context_set_client_window (imHandle, 0); |
| } |
| return 0; |
| } |
| |
| /** |
| * Invokes platform specific functionality to allocate a new GC handle. |
| * <p> |
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
| * API for <code>Control</code>. It is marked public only so that it |
| * can be shared within the packages provided by SWT. It is not |
| * available on all platforms, and should never be called from |
| * application code. |
| * </p> |
| * |
| * @param data the platform specific GC data |
| * @return the platform specific GC handle |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| @Override |
| public long internal_new_GC (GCData data) { |
| checkWidget (); |
| long gdkResource = GTK.GTK4 ? paintSurface () : paintWindow (); |
| if (gdkResource == 0) error (SWT.ERROR_NO_HANDLES); |
| long gc = data.cairo; |
| if (gc != 0) { |
| Cairo.cairo_reference (gc); |
| } else { |
| if (GTK.GTK4) { |
| long surface = GDK.gdk_surface_create_similar_surface(gdkResource, Cairo.CAIRO_CONTENT_COLOR_ALPHA, data.width, data.height); |
| gc = Cairo.cairo_create(surface); |
| } else { |
| gc = GDK.gdk_cairo_create (gdkResource); |
| } |
| } |
| if (gc == 0) error (SWT.ERROR_NO_HANDLES); |
| if (data != null) { |
| int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; |
| if ((data.style & mask) == 0) { |
| data.style |= style & (mask | SWT.MIRRORED); |
| } else { |
| if ((data.style & SWT.RIGHT_TO_LEFT) != 0) { |
| data.style |= SWT.MIRRORED; |
| } |
| } |
| data.drawable = gdkResource; |
| data.device = display; |
| |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| data.font = font != null ? font : defaultFont (); |
| data.foregroundRGBA = getForegroundGdkRGBA (); |
| data.backgroundRGBA = control.getBackgroundGdkRGBA (); |
| } |
| return gc; |
| } |
| |
| long imHandle () { |
| return 0; |
| } |
| |
| /** |
| * Invokes platform specific functionality to dispose a GC handle. |
| * <p> |
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
| * API for <code>Control</code>. It is marked public only so that it |
| * can be shared within the packages provided by SWT. It is not |
| * available on all platforms, and should never be called from |
| * application code. |
| * </p> |
| * |
| * @param hDC the platform specific GC handle |
| * @param data the platform specific GC data |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| @Override |
| public void internal_dispose_GC (long hDC, GCData data) { |
| checkWidget (); |
| Cairo.cairo_destroy (hDC); |
| } |
| |
| /** |
| * Returns <code>true</code> if the underlying operating |
| * system supports this reparenting, otherwise <code>false</code> |
| * |
| * @return <code>true</code> if the widget can be reparented, otherwise <code>false</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean isReparentable () { |
| checkWidget(); |
| return true; |
| } |
| boolean isShowing () { |
| /* |
| * This is not complete. Need to check if the |
| * widget is obscurred by a parent or sibling. |
| */ |
| if (!isVisible ()) return false; |
| Control control = this; |
| while (control != null) { |
| Point size = control.getSizeInPixels (); |
| if (size.x == 0 || size.y == 0) { |
| return false; |
| } |
| control = control.parent; |
| } |
| return true; |
| } |
| boolean isTabGroup () { |
| Control [] tabList = parent._getTabList (); |
| if (tabList != null) { |
| for (int i=0; i<tabList.length; i++) { |
| if (tabList [i] == this) return true; |
| } |
| } |
| int code = traversalCode (0, 0); |
| if ((code & (SWT.TRAVERSE_ARROW_PREVIOUS | SWT.TRAVERSE_ARROW_NEXT)) != 0) return false; |
| return (code & (SWT.TRAVERSE_TAB_PREVIOUS | SWT.TRAVERSE_TAB_NEXT)) != 0; |
| } |
| boolean isTabItem () { |
| Control [] tabList = parent._getTabList (); |
| if (tabList != null) { |
| for (int i=0; i<tabList.length; i++) { |
| if (tabList [i] == this) return false; |
| } |
| } |
| int code = traversalCode (0, 0); |
| return (code & (SWT.TRAVERSE_ARROW_PREVIOUS | SWT.TRAVERSE_ARROW_NEXT)) != 0; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled and all |
| * ancestors up to and including the receiver's nearest ancestor |
| * shell are enabled. Otherwise, <code>false</code> is returned. |
| * A disabled control is typically not selectable from the user |
| * interface and draws with an inactive or "grayed" look. |
| * |
| * @return the receiver's enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getEnabled |
| */ |
| public boolean isEnabled () { |
| checkWidget (); |
| return getEnabled () && parent.isEnabled (); |
| } |
| |
| boolean isFocusAncestor (Control control) { |
| while (control != null && control != this && !(control instanceof Shell)) { |
| control = control.parent; |
| } |
| return control == this; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver has the user-interface |
| * focus, and <code>false</code> otherwise. |
| * |
| * @return the receiver's focus state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean isFocusControl () { |
| checkWidget(); |
| Control focusControl = display.focusControl; |
| if (focusControl != null && !focusControl.isDisposed ()) { |
| return this == focusControl; |
| } |
| return hasFocus (); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is visible and all |
| * ancestors up to and including the receiver's nearest ancestor |
| * shell are visible. Otherwise, <code>false</code> is returned. |
| * |
| * @return the receiver's visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getVisible |
| */ |
| public boolean isVisible () { |
| checkWidget(); |
| return getVisible () && parent.isVisible (); |
| } |
| |
| Decorations menuShell () { |
| return parent.menuShell (); |
| } |
| |
| boolean mnemonicHit (char key) { |
| return false; |
| } |
| |
| boolean mnemonicMatch (char key) { |
| return false; |
| } |
| |
| @Override |
| void register () { |
| super.register (); |
| if (fixedHandle != 0) display.addWidget (fixedHandle, this); |
| long imHandle = imHandle (); |
| if (imHandle != 0) display.addWidget (imHandle, this); |
| } |
| |
| /** |
| * Requests that this control and all of its ancestors be repositioned by |
| * their layouts at the earliest opportunity. This should be invoked after |
| * modifying the control in order to inform any dependent layouts of |
| * the change. |
| * <p> |
| * The control will not be repositioned synchronously. This method is |
| * fast-running and only marks the control for future participation in |
| * a deferred layout. |
| * <p> |
| * Invoking this method multiple times before the layout occurs is an |
| * inexpensive no-op. |
| * |
| * @since 3.105 |
| */ |
| public void requestLayout () { |
| getShell ().layout (new Control[] {this}, SWT.DEFER); |
| } |
| |
| /** |
| * Causes the entire bounds of the receiver to be marked |
| * as needing to be redrawn. The next time a paint request |
| * is processed, the control will be completely painted, |
| * including the background. |
| * <p> |
| * Schedules a paint request if the invalidated area is visible |
| * or becomes visible later. It is not necessary for the caller |
| * to explicitly call {@link #update()} after calling this method, |
| * but depending on the platform, the automatic repaints may be |
| * delayed considerably. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #update() |
| * @see PaintListener |
| * @see SWT#Paint |
| * @see SWT#NO_BACKGROUND |
| * @see SWT#NO_REDRAW_RESIZE |
| * @see SWT#NO_MERGE_PAINTS |
| * @see SWT#DOUBLE_BUFFERED |
| */ |
| public void redraw () { |
| checkWidget(); |
| redraw (false); |
| } |
| |
| void redraw (boolean all) { |
| // checkWidget(); |
| if (!GTK.gtk_widget_get_visible (topHandle ())) return; |
| redrawWidget (0, 0, 0, 0, true, all, false); |
| } |
| |
| /** |
| * Causes the rectangular area of the receiver specified by |
| * the arguments to be marked as needing to be redrawn. |
| * The next time a paint request is processed, that area of |
| * the receiver will be painted, including the background. |
| * If the <code>all</code> flag is <code>true</code>, any |
| * children of the receiver which intersect with the specified |
| * area will also paint their intersecting areas. If the |
| * <code>all</code> flag is <code>false</code>, the children |
| * will not be painted. |
| * <p> |
| * Schedules a paint request if the invalidated area is visible |
| * or becomes visible later. It is not necessary for the caller |
| * to explicitly call {@link #update()} after calling this method, |
| * but depending on the platform, the automatic repaints may be |
| * delayed considerably. |
| * </p> |
| * |
| * @param x the x coordinate of the area to draw |
| * @param y the y coordinate of the area to draw |
| * @param width the width of the area to draw |
| * @param height the height of the area to draw |
| * @param all <code>true</code> if children should redraw, and <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #update() |
| * @see PaintListener |
| * @see SWT#Paint |
| * @see SWT#NO_BACKGROUND |
| * @see SWT#NO_REDRAW_RESIZE |
| * @see SWT#NO_MERGE_PAINTS |
| * @see SWT#DOUBLE_BUFFERED |
| */ |
| public void redraw (int x, int y, int width, int height, boolean all) { |
| checkWidget(); |
| Rectangle rect = DPIUtil.autoScaleUp(new Rectangle(x, y, width, height)); |
| redrawInPixels(rect.x, rect.y, rect.width, rect.height, all); |
| } |
| |
| void redrawInPixels (int x, int y, int width, int height, boolean all) { |
| checkWidget(); |
| if (!GTK.gtk_widget_get_visible (topHandle ())) return; |
| if ((style & SWT.MIRRORED) != 0) x = getClientWidth () - width - x; |
| redrawWidget (x, y, width, height, false, all, false); |
| } |
| |
| void redrawChildren () { |
| } |
| |
| void redrawWidget (int x, int y, int width, int height, boolean redrawAll, boolean all, boolean trim) { |
| if (!GTK.gtk_widget_get_realized(handle)) return; |
| GdkRectangle rect = new GdkRectangle (); |
| if (GTK.GTK4) { |
| long surface = paintSurface (); |
| if (redrawAll) { |
| int [] w = new int [1], h = new int [1]; |
| gdk_surface_get_size (surface, w, h); |
| rect.width = w [0]; |
| rect.height = h [0]; |
| } else { |
| rect.x = x; |
| rect.y = y; |
| rect.width = Math.max (0, width); |
| rect.height = Math.max (0, height); |
| } |
| /* TODO: GTK4 no ability to invalidate surfaces, may need to keep track of |
| * invalid regions ourselves and do gdk_surface_queue_expose. Will need a different way to force redraws |
| * New "render" signal? */ |
| } else { |
| long window = paintWindow (); |
| if (redrawAll) { |
| int [] w = new int [1], h = new int [1]; |
| gdk_window_get_size (window, w, h); |
| rect.width = w [0]; |
| rect.height = h [0]; |
| } else { |
| rect.x = x; |
| rect.y = y; |
| rect.width = Math.max (0, width); |
| rect.height = Math.max (0, height); |
| } |
| GDK.gdk_window_invalidate_rect (window, rect, all); |
| } |
| } |
| |
| @Override |
| void release (boolean destroy) { |
| Control next = null, previous = null; |
| if (destroy && parent != null) { |
| Control[] children = parent._getChildren (); |
| int index = 0; |
| while (index < children.length) { |
| if (children [index] == this) break; |
| index++; |
| } |
| if (index > 0) { |
| previous = children [index - 1]; |
| } |
| if (index + 1 < children.length) { |
| next = children [index + 1]; |
| next.removeRelation (); |
| } |
| removeRelation (); |
| } |
| super.release (destroy); |
| if (destroy) { |
| if (previous != null && next != null) previous.addRelation (next); |
| } |
| } |
| |
| @Override |
| void releaseHandle () { |
| super.releaseHandle (); |
| fixedHandle = 0; |
| parent = null; |
| cairoDisposeRegion(); |
| } |
| |
| @Override |
| void releaseParent () { |
| parent.removeControl (this); |
| } |
| |
| @Override |
| void releaseWidget () { |
| boolean hadFocus = display.getFocusControl() == this; |
| super.releaseWidget (); |
| if (hadFocus) fixFocus (this); |
| if (display.currentControl == this) display.currentControl = null; |
| display.removeMouseHoverTimeout (handle); |
| if (!GTK.GTK4) { |
| long imHandle = imHandle (); |
| if (imHandle != 0 && GTK.GTK_IS_IM_CONTEXT(imHandle)) { |
| GTK.gtk_im_context_reset (imHandle); |
| GTK.gtk_im_context_set_client_window (imHandle, 0); |
| } |
| if (enableWindow != 0) { |
| GDK.gdk_window_set_user_data (enableWindow, 0); |
| GDK.gdk_window_destroy (enableWindow); |
| enableWindow = 0; |
| } |
| redrawWindow = 0; |
| } |
| if (menu != null && !menu.isDisposed ()) { |
| menu.dispose (); |
| } |
| menu = null; |
| cursor = null; |
| toolTipText = null; |
| layoutData = null; |
| if (accessible != null) { |
| accessible.internal_dispose_Accessible (); |
| } |
| accessible = null; |
| region = null; |
| if (dragGesture != 0) { |
| OS.g_object_unref(dragGesture); |
| dragGesture = 0; |
| } |
| if (rotateGesture != 0) { |
| OS.g_object_unref(rotateGesture); |
| rotateGesture = 0; |
| } |
| if (zoomGesture != 0) { |
| OS.g_object_unref(zoomGesture); |
| zoomGesture = 0; |
| } |
| } |
| |
| /** |
| * GTK3 only, do not call on GTK4. |
| * @param window a GdkWindow |
| * @param sibling the sibling thereof, or 0 |
| * @param above a boolean setting for whether the window |
| * should be raised or lowered |
| */ |
| void restackWindow (long window, long sibling, boolean above) { |
| GDK.gdk_window_restack (window, sibling, above); |
| } |
| |
| boolean sendDragEvent (int button, int stateMask, int x, int y, boolean isStateMask) { |
| Event event = new Event (); |
| event.button = button; |
| Rectangle eventRect = new Rectangle (x, y, 0, 0); |
| event.setBounds (eventRect); |
| if ((style & SWT.MIRRORED) != 0) event.x = DPIUtil.autoScaleDown(getClientWidth ()) - event.x; |
| if (isStateMask) { |
| event.stateMask = stateMask; |
| } else { |
| setInputState (event, stateMask); |
| } |
| postEvent (SWT.DragDetect, event); |
| if (isDisposed ()) return false; |
| return event.doit; |
| } |
| |
| void sendFocusEvent (int type) { |
| Shell shell = _getShell (); |
| Display display = this.display; |
| display.focusControl = this; |
| display.focusEvent = type; |
| sendEvent (type); |
| display.focusControl = null; |
| display.focusEvent = SWT.None; |
| /* |
| * It is possible that the shell may be |
| * disposed at this point. If this happens |
| * don't send the activate and deactivate |
| * events. |
| */ |
| if (!shell.isDisposed ()) { |
| switch (type) { |
| case SWT.FocusIn: |
| shell.setActiveControl (this); |
| break; |
| case SWT.FocusOut: |
| if (shell != display.activeShell) { |
| shell.setActiveControl (null); |
| } |
| break; |
| } |
| } |
| } |
| |
| boolean sendGestureEvent (int stateMask, int detail, int x, int y, double delta) { |
| if (containedInRegion(x, y)) return false; |
| switch (detail) { |
| case SWT.GESTURE_ROTATE: { |
| return sendGestureEvent(stateMask, detail, x, y, delta, 0, 0, 0); |
| } |
| case SWT.GESTURE_MAGNIFY: { |
| return sendGestureEvent(stateMask, detail, x, y, 0,0,0, delta); |
| } |
| case SWT.GESTURE_BEGIN: { |
| return sendGestureEvent(stateMask, detail, x, y, 0, 0, 0, delta); |
| } |
| case SWT.GESTURE_END: { |
| return sendGestureEvent(stateMask, detail, 0, 0, 0, 0, 0, 0); |
| } |
| default: |
| //case not supported. |
| return false; |
| } |
| } |
| |
| boolean sendGestureEvent (int stateMask, int detail, int x, int y, double xDirection, double yDirection) { |
| if (containedInRegion(x, y)) return false; |
| if (detail == SWT.GESTURE_SWIPE) { |
| return sendGestureEvent(stateMask, detail, x, y, 0, (int)xDirection, (int)yDirection, 0); |
| } else return false; |
| } |
| |
| boolean sendGestureEvent (int stateMask, int detail, int x, int y, double rotation, int xDirection, int yDirection, double magnification) { |
| if (containedInRegion(x, y)) return false; |
| Event event = new Event (); |
| event.stateMask = stateMask; |
| event.detail = detail; |
| event.x = x; |
| event.y = y; |
| switch (detail) { |
| case SWT.GESTURE_ROTATE: { |
| event.rotation = rotation; |
| break; |
| } |
| case SWT.GESTURE_MAGNIFY: { |
| event.magnification = magnification; |
| break; |
| } |
| case SWT.GESTURE_SWIPE: { |
| event.xDirection = xDirection; |
| event.yDirection = yDirection; |
| break; |
| } |
| case SWT.GESTURE_BEGIN: |
| case SWT.GESTURE_END: { |
| break; |
| } |
| } |
| postEvent(SWT.Gesture, event); |
| if (isDisposed ()) return false; |
| return event.doit; |
| } |
| |
| boolean sendHelpEvent (long helpType) { |
| Control control = this; |
| while (control != null) { |
| if (control.hooks (SWT.Help)) { |
| control.postEvent (SWT.Help); |
| return true; |
| } |
| control = control.parent; |
| } |
| return false; |
| } |
| |
| boolean sendLeaveNotify() { |
| return false; |
| } |
| |
| boolean sendMouseEvent (int type, int button, int time, double x, double y, boolean is_hint, int state) { |
| if (containedInRegion((int) x, (int) y)) return true; |
| return sendMouseEvent (type, button, 0, 0, false, time, x, y, is_hint, state); |
| } |
| |
| /* |
| * @return |
| * true - event sending not canceled by user. |
| * false - event sending canceled by user. |
| */ |
| boolean sendMouseEvent (int type, int button, int count, int detail, boolean send, int time, double x, double y, boolean is_hint, int state) { |
| if (containedInRegion((int) x, (int) y)) return true; |
| if (!hooks (type) && !filters (type)) { |
| /* |
| * On Wayland, MouseDown events are cached for DnD purposes, but |
| * unfortunately this breaks simple cases with a single MouseDown |
| * listener. The MouseDown event is cached but never sent, as MouseUp |
| * isn't hooked and thus the logic to send cached events is never run. |
| * |
| * The solution is to check for MouseUp events even if MouseUp isn't |
| * hooked. We can check the queue and flush it by sending the MouseDown |
| * event, similar to the way the caching logic does it when receiving a |
| * MouseMove event. See bug 529126. |
| */ |
| if (!OS.isX11() && dragDetectionQueue != null) { |
| /* |
| * The first event in the queue will always be a MouseDown, as |
| * the queue is only ever created if a MouseDown event is being cached. |
| * Thus, if the queue only has one element, it is guaranteed to be a |
| * MouseDown event. More than 1 element implies MouseMove: let the caching |
| * logic handle this case. |
| */ |
| if (type == SWT.MouseUp && dragDetectionQueue.size() == 1) { |
| Event mouseDownEvent = dragDetectionQueue.getFirst(); |
| dragDetectionQueue = null; |
| sendOrPost(SWT.MouseDown, mouseDownEvent); |
| } |
| } |
| return true; |
| } |
| Event event = new Event (); |
| event.time = time; |
| event.button = button; |
| event.detail = detail; |
| event.count = count; |
| if (is_hint) { |
| // coordinates are already window-relative, see #gtk_motion_notify_event(..) and bug 94502 |
| Rectangle eventRect = new Rectangle ((int)x, (int)y, 0, 0); |
| event.setBounds (DPIUtil.autoScaleDown (eventRect)); |
| } else { |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| Rectangle eventRect; |
| if (GTK.GTK4) { |
| // long surface = eventSurface (); |
| // GDK.gdk_surface_get_origin (surface, origin_x, origin_y); |
| // eventRect = new Rectangle ((int)x - origin_x [0], (int)y - origin_y [0], 0, 0); |
| // event.setBounds (DPIUtil.autoScaleDown (eventRect)); |
| } else { |
| long window = eventWindow (); |
| GDK.gdk_window_get_origin (window, origin_x, origin_y); |
| eventRect = new Rectangle ((int)x - origin_x [0], (int)y - origin_y [0], 0, 0); |
| event.setBounds (DPIUtil.autoScaleDown (eventRect)); |
| } |
| } |
| if ((style & SWT.MIRRORED) != 0) event.x = DPIUtil.autoScaleDown (getClientWidth ()) - event.x; |
| setInputState (event, state); |
| |
| /** |
| * Bug 510446: |
| * In the original gtk2 DnD architecture, Drag detection was done in mouseDown. |
| * For Wayland support, Drag detection is now done in mouseMove (as does gtk internally). |
| * |
| * However, traditionally external widgets (e.g StyledText or non-SWT widgets) expect to |
| * know if a drag has started by the time mouseDown is sent. |
| * As such, for backwards compatibility with external widgets (e.g StyledText.java), we |
| * delay sending of SWT.MouseDown (and also queue up SWT.MouseMove) until we know if a |
| * drag started or not. |
| * |
| * Technical notes: |
| * - To ensure we follow 'send/post' contract as per parameter, we |
| * temporarily utilize event.data to hold send/post flag. |
| * There's also logic in place such that mouseDown/mouseMotion is always sent before mouseUp. |
| * - On Gtk2, mouseMove is sent during DnD. On Gtk3x11 it's not due to hacky implementation of DnD. |
| * On Wayland mouseMove is once again sent during DnD as per improved architecture. |
| */ |
| event.data = Boolean.valueOf(send); |
| if (!OS.isX11()) { |
| if (type == SWT.MouseDown) { |
| // Delay MouseDown |
| dragDetectionQueue = new LinkedList<>(); |
| dragDetectionQueue.add(event); |
| return true; // event never canceled as not yet sent. |
| } else { |
| if (dragDetectionQueue != null) { |
| switch (type) { |
| case SWT.MouseMove: |
| if (dragDetect (event.x, event.y, false, true, null)) { |
| // Case where mouse motion triggered a DnD: |
| // Send only initial MouseDown but not the MouseMove events that were used |
| // to determine DnD threshold. |
| // This is to preserve backwards Cocoa/Win32 compatibility. |
| Event mouseDownEvent = dragDetectionQueue.getFirst(); |
| mouseDownEvent.data = Boolean.valueOf(true); // force send MouseDown to avoid subsequent MouseMove before MouseDown. |
| dragDetectionQueue = null; |
| sendOrPost(SWT.MouseDown, mouseDownEvent); |
| } else { |
| dragDetectionQueue.add(event); |
| } |
| break; |
| case SWT.MouseUp: |
| // Case where mouse up was released before DnD threshold was hit. |
| mouseDown = false; |
| // Decide if we should send or post the queued up MouseDown and MouseMovement events. |
| // If mouseUp is send, then send all. If mouseUp is post, then decide based on previous |
| // send flag. |
| boolean sendOrPostAll = send ? true : (Boolean) dragDetectionQueue.getFirst().data; |
| dragDetectionQueue.forEach(queuedEvent -> queuedEvent.data = Boolean.valueOf(sendOrPostAll)); |
| |
| // Flush queued up MouseDown/MouseMotion events, so they are triggered before MouseUp |
| sendOrPost(SWT.MouseDown, dragDetectionQueue.removeFirst()); |
| dragDetectionQueue.forEach(queuedEvent -> sendOrPost(SWT.MouseMove, queuedEvent)); |
| dragDetectionQueue = null; |
| } |
| } |
| } |
| } |
| return sendOrPost(type, event); |
| } |
| |
| private boolean sendOrPost(int type, Event event) { |
| assert event.data != null : "event.data should have been a Boolean, but received null"; |
| boolean send = (Boolean) event.data; |
| event.data = null; |
| |
| if (send) { |
| sendEvent (type, event); |
| if (isDisposed ()) return false; |
| } else { |
| postEvent (type, event); |
| } |
| return event.doit; |
| } |
| |
| /** |
| * Not direct gtk api, but useful to have them combined as they are usually called together. |
| * @param widget the GTK reference. |
| * @param hAlign is of type GTKAlign enum. See OS.java |
| * @param vAlign is of type GTKAlign enum. See OS.java |
| */ |
| void gtk_widget_set_align(long widget, int hAlign, int vAlign) { |
| GTK.gtk_widget_set_halign (widget, hAlign); |
| GTK.gtk_widget_set_valign (widget, vAlign); |
| } |
| |
| void gtk_label_set_align(long label, float xAlign, float yAlign) { |
| GTK.gtk_label_set_xalign(label, xAlign); |
| GTK.gtk_label_set_yalign(label, yAlign); |
| } |
| |
| void setBackground () { |
| if ((state & BACKGROUND) == 0 && backgroundImage == null) { |
| if ((state & PARENT_BACKGROUND) != 0) { |
| setParentBackground (); |
| } else { |
| setWidgetBackground (); |
| } |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } |
| } |
| |
| /** |
| * Sets the receiver's background color to the color specified |
| * by the argument, or to the default system color for the control |
| * if the argument is null. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * </p> |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setBackground (Color color) { |
| checkWidget (); |
| _setBackground (color); |
| if (color != null) { |
| this.updateBackgroundMode (); |
| } |
| } |
| |
| private void _setBackground (Color color) { |
| if (((state & BACKGROUND) == 0) && color == null) return; |
| if (color != null && color.isDisposed ()) { |
| error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| boolean set = false; |
| GdkRGBA rgba = null; |
| if (color != null) { |
| rgba = color.handle; |
| backgroundAlpha = color.getAlpha(); |
| } |
| set = true; |
| if (set) { |
| if (color == null) { |
| state &= ~BACKGROUND; |
| } else { |
| state |= BACKGROUND; |
| } |
| setBackgroundGdkRGBA (rgba); |
| } |
| redrawChildren (); |
| } |
| |
| void setBackgroundGdkRGBA (long context, long handle, GdkRGBA rgba) { |
| GdkRGBA selectedBackground = display.getSystemColor(SWT.COLOR_LIST_SELECTION).handle; |
| // Form background string |
| String name = display.gtk_widget_class_get_css_name(handle); |
| String css = name + " {background-color: " + display.gtk_rgba_to_css_string(rgba) + ";}\n" |
| + name + ":selected" + " {background-color: " + display.gtk_rgba_to_css_string(selectedBackground) + ";}"; |
| |
| // Cache background |
| cssBackground = css; |
| |
| // Apply background color and any cached foreground color |
| String finalCss = display.gtk_css_create_css_color_string (cssBackground, cssForeground, SWT.BACKGROUND); |
| gtk_css_provider_load_from_css (context, finalCss); |
| } |
| |
| void gtk_css_provider_load_from_css (long context, String css) { |
| /* Utility function. */ |
| //@param css : a 'css java' string like "{\nbackground: red;\n}". |
| |
| if (provider == 0) { |
| provider = GTK.gtk_css_provider_new (); |
| GTK.gtk_style_context_add_provider (context, provider, GTK.GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); |
| OS.g_object_unref (provider); |
| } |
| if (GTK.GTK4) { |
| GTK4.gtk_css_provider_load_from_data (provider, Converter.wcsToMbcs (css, true), -1); |
| } else { |
| GTK3.gtk_css_provider_load_from_data (provider, Converter.wcsToMbcs (css, true), -1, null); |
| } |
| } |
| |
| void setBackgroundGdkRGBA(GdkRGBA rgba) { |
| setBackgroundGdkRGBA (handle, rgba); |
| } |
| |
| void setBackgroundGdkRGBA (long handle, GdkRGBA rgba) { |
| double alpha = 1.0; |
| if (rgba == null) { |
| if ((state & PARENT_BACKGROUND) != 0) { |
| alpha = 0; |
| Control control = findBackgroundControl(); |
| if (control == null) control = this; |
| rgba = control.getBackgroundGdkRGBA(); |
| } |
| } else { |
| alpha = backgroundAlpha; |
| } |
| if (rgba != null) { |
| rgba.alpha = alpha / (float)255; |
| } |
| |
| long context = GTK.gtk_widget_get_style_context(handle); |
| setBackgroundGdkRGBA(context, handle, rgba); |
| if (!GTK.GTK4) GTK3.gtk_style_context_invalidate(context); |
| } |
| /** |
| * Sets the receiver's background image to the image specified |
| * by the argument, or to the default system color for the control |
| * if the argument is null. The background image is tiled to fill |
| * the available space. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * For example, on Windows the background of a Button cannot be changed. |
| * </p> |
| * @param image the new image (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument is not a bitmap</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setBackgroundImage (Image image) { |
| checkWidget (); |
| if (image != null && image.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (image == backgroundImage && backgroundAlpha > 0) return; |
| backgroundAlpha = 255; |
| this.backgroundImage = image; |
| if (backgroundImage != null) { |
| setBackgroundSurface (backgroundImage); |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } else { |
| setWidgetBackground (); |
| } |
| redrawChildren (); |
| } |
| |
| void setBackgroundSurface (Image image) { |
| if (GTK.GTK_VERSION >= OS.VERSION(3, 22, 0)) { |
| // gdk_window_set_background_pattern() deprecated in GTK3.22+ |
| return; |
| } |
| |
| long window = GTK3.gtk_widget_get_window (paintHandle ()); |
| if (window != 0) { |
| if (image.surface != 0) { |
| long pattern = Cairo.cairo_pattern_create_for_surface(image.surface); |
| if (pattern == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| Cairo.cairo_pattern_set_extend(pattern, Cairo.CAIRO_EXTEND_REPEAT); |
| GDK.gdk_window_set_background_pattern(window, pattern); |
| Cairo.cairo_pattern_destroy(pattern); |
| } |
| } |
| } |
| |
| /** |
| * If the argument is <code>true</code>, causes the receiver to have |
| * all mouse events delivered to it until the method is called with |
| * <code>false</code> as the argument. Note that on some platforms, |
| * a mouse button must currently be down for capture to be assigned. |
| * |
| * @param capture <code>true</code> to capture the mouse, and <code>false</code> to release it |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setCapture (boolean capture) { |
| checkWidget(); |
| /* FIXME !!!!! */ |
| /* |
| if (capture) { |
| OS.gtk_widget_grab_focus (handle); |
| } else { |
| OS.gtk_widget_grab_default (handle); |
| } |
| */ |
| } |
| /** |
| * Sets the receiver's cursor to the cursor specified by the |
| * argument, or to the default cursor for that kind of control |
| * if the argument is null. |
| * <p> |
| * When the mouse pointer passes over a control its appearance |
| * is changed to match the control's cursor. |
| * </p> |
| * |
| * @param cursor the new cursor (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setCursor (Cursor cursor) { |
| checkWidget(); |
| if (cursor != null && cursor.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| this.cursor = cursor; |
| setCursor (cursor != null ? cursor.handle : 0); |
| } |
| |
| void setCursor (long cursor) { |
| if (GTK.GTK4) { |
| long eventHandle = eventHandle (); |
| GTK4.gtk_widget_set_cursor (eventHandle, cursor); |
| } else { |
| long window = eventWindow (); |
| if (window != 0) { |
| GDK.gdk_window_set_cursor (window, cursor); |
| update(false, true); |
| } |
| } |
| } |
| |
| /** |
| * Sets the receiver's drag detect state. If the argument is |
| * <code>true</code>, the receiver will detect drag gestures, |
| * otherwise these gestures will be ignored. |
| * |
| * @param dragDetect the new drag detect state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.3 |
| */ |
| public void setDragDetect (boolean dragDetect) { |
| checkWidget (); |
| if (dragDetect) { |
| state |= DRAG_DETECT; |
| } else { |
| state &= ~DRAG_DETECT; |
| } |
| } |
| |
| /** |
| * Enables the receiver if the argument is <code>true</code>, |
| * and disables it otherwise. A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * |
| * @param enabled the new enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setEnabled (boolean enabled) { |
| checkWidget(); |
| if (((state & DISABLED) == 0) == enabled) return; |
| Control control = null; |
| boolean fixFocus = false; |
| if (!enabled) { |
| if (display.focusEvent != SWT.FocusOut) { |
| control = display.getFocusControl (); |
| fixFocus = isFocusAncestor (control); |
| } |
| } |
| if (enabled) { |
| state &= ~DISABLED; |
| } else { |
| state |= DISABLED; |
| } |
| enableWidget (enabled); |
| if (isDisposed ()) return; |
| |
| if (!GTK.GTK4) { |
| if (enabled) { |
| if (enableWindow != 0) { |
| cleanupEnableWindow(); |
| } |
| } else { |
| GTK.gtk_widget_realize (handle); |
| long parentHandle = parent.eventHandle (); |
| long window = parent.eventWindow (); |
| long topHandle = topHandle (); |
| GdkWindowAttr attributes = new GdkWindowAttr (); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation (topHandle, allocation); |
| attributes.x = allocation.x; |
| attributes.y = allocation.y; |
| attributes.width = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| attributes.height = (state & ZERO_HEIGHT) != 0 ? 0 : allocation.height; |
| attributes.event_mask = (0xFFFFFFFF & ~OS.ExposureMask); |
| attributes.wclass = GDK.GDK_INPUT_ONLY; |
| attributes.window_type = GDK.GDK_WINDOW_CHILD; |
| enableWindow = GDK.gdk_window_new (window, attributes, GDK.GDK_WA_X | GDK.GDK_WA_Y); |
| if (enableWindow != 0) { |
| GDK.gdk_window_set_user_data (enableWindow, parentHandle); |
| restackWindow (enableWindow, gtk_widget_get_window (topHandle), true); |
| if (GTK.gtk_widget_get_visible (topHandle)) GDK.gdk_window_show_unraised (enableWindow); |
| } |
| } |
| } |
| |
| if (fixFocus) fixFocus (control); |
| } |
| |
| void cleanupEnableWindow() { |
| GDK.gdk_window_set_user_data (enableWindow, 0); |
| GDK.gdk_window_destroy (enableWindow); |
| enableWindow = 0; |
| } |
| |
| /** |
| * Causes the receiver to have the <em>keyboard focus</em>, |
| * such that all keyboard events will be delivered to it. Focus |
| * reassignment will respect applicable platform constraints. |
| * |
| * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #forceFocus |
| */ |
| public boolean setFocus () { |
| checkWidget(); |
| if ((style & SWT.NO_FOCUS) != 0) return false; |
| return forceFocus (); |
| } |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * to the font specified by the argument, or to the default font for that |
| * kind of control if the argument is null. |
| * |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setFont (Font font) { |
| checkWidget(); |
| if (((state & FONT) == 0) && font == null) return; |
| this.font = font; |
| long fontDesc; |
| if (font == null) { |
| fontDesc = defaultFont ().handle; |
| } else { |
| if (font.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| fontDesc = font.handle; |
| } |
| if (font == null) { |
| state &= ~FONT; |
| } else { |
| state |= FONT; |
| } |
| setFontDescription (fontDesc); |
| } |
| |
| void setFontDescription (long font) { |
| setFontDescription (handle, font); |
| } |
| |
| /** |
| * Sets the receiver's foreground color to the color specified |
| * by the argument, or to the default system color for the control |
| * if the argument is null. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * </p> |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setForeground (Color color) { |
| checkWidget(); |
| if (((state & FOREGROUND) == 0) && color == null) return; |
| if (color != null && color.isDisposed ()) { |
| error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| boolean set = false; |
| set = !getForeground().equals(color); |
| if (set) { |
| if (color == null) { |
| state &= ~FOREGROUND; |
| } else { |
| state |= FOREGROUND; |
| } |
| GdkRGBA rgba = color == null ? null : color.handle; |
| setForegroundGdkRGBA (rgba); |
| } |
| } |
| |
| void setForegroundGdkRGBA (GdkRGBA rgba) { |
| setForegroundGdkRGBA (handle, rgba); |
| } |
| |
| void setForegroundGdkRGBA (long handle, GdkRGBA rgba) { |
| GdkRGBA toSet; |
| if (rgba != null) { |
| toSet = rgba; |
| } else { |
| toSet = display.COLOR_WIDGET_FOREGROUND_RGBA; |
| } |
| long context = GTK.gtk_widget_get_style_context (handle); |
| // Form foreground string |
| String color = display.gtk_rgba_to_css_string(toSet); |
| String name = display.gtk_widget_class_get_css_name(handle); |
| GdkRGBA selectedForeground = display.COLOR_LIST_SELECTION_TEXT_RGBA; |
| String selection = !name.contains("treeview") ? " selection" : ":selected"; |
| String css = "* {color: " + color + ";}\n" |
| + name + selection + " {color: " + display.gtk_rgba_to_css_string(selectedForeground) + ";}"; |
| |
| // Cache foreground color |
| cssForeground = css; |
| |
| // Apply foreground color and any cached background color |
| String finalCss = display.gtk_css_create_css_color_string (cssBackground, cssForeground, SWT.FOREGROUND); |
| gtk_css_provider_load_from_css(context, finalCss); |
| } |
| |
| void setInitialBounds () { |
| if ((state & ZERO_WIDTH) != 0 && (state & ZERO_HEIGHT) != 0) { |
| /* |
| * Feature in GTK. On creation, each widget's allocation is |
| * initialized to a position of (-1, -1) until the widget is |
| * first sized. The fix is to set the value to (0, 0) as |
| * expected by SWT. |
| */ |
| long topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation(); |
| if ((parent.style & SWT.MIRRORED) != 0) { |
| allocation.x = parent.getClientWidth (); |
| } else { |
| allocation.x = 0; |
| } |
| allocation.y = 0; |
| if (mustBeVisibleOnInitBounds ()) { |
| GTK.gtk_widget_set_visible(topHandle, true); |
| } |
| if (GTK.GTK4) { |
| GTK.gtk_widget_size_allocate (topHandle, allocation, -1); |
| } else { |
| // Prevent GTK+ allocation warnings, preferred size should be retrieved before setting allocation size. |
| GTK.gtk_widget_get_preferred_size(topHandle, null, null); |
| GTK.gtk_widget_size_allocate (topHandle, allocation); |
| } |
| } else { |
| resizeHandle (1, 1); |
| forceResize (); |
| } |
| } |
| |
| /** |
| * Widgets with unusual bounds calculation behavior can override this method |
| * to return {@code true} if the widget must be visible during call to |
| * {@link #setInitialBounds()}. |
| * |
| * @return {@code false} by default on modern GTK 3 versions (3.20+). |
| */ |
| boolean mustBeVisibleOnInitBounds() { |
| return false; |
| } |
| |
| /* |
| * Sets the receivers Drag Gestures in order to do drag detection correctly for |
| * X11/Wayland window managers after GTK3.14. |
| * TODO currently phase is set to BUBBLE = 2. Look into using groups perhaps. |
| */ |
| private void setDragGesture () { |
| dragGesture = GTK.gtk_gesture_drag_new (handle); |
| GTK.gtk_event_controller_set_propagation_phase (dragGesture, |
| 2); |
| GTK.gtk_gesture_single_set_button (dragGesture, 0); |
| OS.g_signal_connect(dragGesture, OS.begin, gestureBegin.getAddress(), this.handle); |
| OS.g_signal_connect(dragGesture, OS.end, gestureEnd.getAddress(), this.handle); |
| return; |
| } |
| |
| //private void setPanGesture () { |
| ///* TODO: Panning gesture requires a GtkOrientation object. Need to discuss what orientation should be default. */ |
| //} |
| |
| private void setRotateGesture () { |
| rotateGesture = GTK.gtk_gesture_rotate_new(handle); |
| GTK.gtk_event_controller_set_propagation_phase (rotateGesture, |
| 2); |
| OS.g_signal_connect (rotateGesture, OS.angle_changed, gestureRotation.getAddress(), this.handle); |
| OS.g_signal_connect(rotateGesture, OS.begin, gestureBegin.getAddress(), this.handle); |
| OS.g_signal_connect(rotateGesture, OS.end, gestureEnd.getAddress(), this.handle); |
| return; |
| } |
| |
| private void setZoomGesture () { |
| zoomGesture = GTK.gtk_gesture_zoom_new(handle); |
| GTK.gtk_event_controller_set_propagation_phase (zoomGesture, |
| 2); |
| OS.g_signal_connect(zoomGesture, OS.scale_changed, gestureZoom.getAddress(), this.handle); |
| OS.g_signal_connect(zoomGesture, OS.begin, gestureBegin.getAddress(), this.handle); |
| OS.g_signal_connect(zoomGesture, OS.end, gestureEnd.getAddress(), this.handle); |
| return; |
| } |
| |
| static Control getControl(long handle) { |
| Display display = Display.findDisplay(Thread.currentThread()); |
| if (display ==null || display.isDisposed()) return null; |
| Widget widget = display.findWidget(handle); |
| if (widget == null) return null; |
| return (Control) widget; |
| } |
| |
| static void rotateProc(long gesture, double angle, double angle_delta, long user_data) { |
| if (GTK.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| GTK3.gtk_get_current_event_state(state); |
| GTK.gtk_gesture_get_point(gesture, GTK.gtk_gesture_get_last_updated_sequence(gesture), x, y); |
| /* |
| * Returning delta is off by two decimal points and is returning negative numbers on |
| * counter clockwise rotations from GTK. From the java doc of GestureEvent.rotation, |
| * we have to invert the rotation number so that positive/negative numbers are returned |
| * correctly (inverted). |
| */ |
| double delta = -(GTK.gtk_gesture_rotate_get_angle_delta(gesture)*100); |
| Control control = getControl(user_data); |
| control.sendGestureEvent(state[0], SWT.GESTURE_ROTATE, (int) x[0], (int) y[0], delta); |
| } |
| } |
| |
| static void magnifyProc(long gesture, double zoom, long user_data) { |
| if (GTK.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| GTK3.gtk_get_current_event_state(state); |
| GTK.gtk_gesture_get_point(gesture, GTK.gtk_gesture_get_last_updated_sequence(gesture), x, y); |
| double delta = GTK.gtk_gesture_zoom_get_scale_delta(gesture); |
| Control control = getControl(user_data); |
| control.sendGestureEvent(state[0], SWT.GESTURE_MAGNIFY, (int) x[0], (int) y[0], delta); |
| } |
| } |
| |
| static void swipeProc(long gesture, double velocity_x, double velocity_y, long user_data) { |
| if (GTK.gtk_gesture_is_recognized(gesture)) { |
| double [] xVelocity = new double [1]; |
| double [] yVelocity = new double [1]; |
| if (GTK.gtk_gesture_swipe_get_velocity(gesture, xVelocity, yVelocity)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| GTK3.gtk_get_current_event_state(state); |
| GTK.gtk_gesture_get_point(gesture, GTK.gtk_gesture_get_last_updated_sequence(gesture), x, y); |
| Control control = getControl(user_data); |
| control.sendGestureEvent(state[0], SWT.GESTURE_SWIPE, (int) x[0], (int) y[0], xVelocity[0], yVelocity[0]); |
| } |
| } |
| } |
| |
| static void gestureBeginProc(long gesture, long sequence, long user_data) { |
| if (GTK.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| GTK3.gtk_get_current_event_state(state); |
| GTK.gtk_gesture_get_point(gesture, sequence, x, y); |
| Control control = getControl(user_data); |
| control.sendGestureEvent(state[0], SWT.GESTURE_BEGIN, (int) x[0], (int) y[0], 0); |
| } |
| } |
| |
| static void gestureEndProc(long gesture, long sequence, long user_data) { |
| if (GTK.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| GTK3.gtk_get_current_event_state(state); |
| GTK.gtk_gesture_get_point(gesture, GTK.gtk_gesture_get_last_updated_sequence(gesture), x, y); |
| Control control = getControl(user_data); |
| control.sendGestureEvent(state[0], SWT.GESTURE_END, (int) x[0], (int) y[0], 0); |
| } |
| } |
| /** |
| * Sets the receiver's pop up menu to the argument. |
| * All controls may optionally have a pop up |
| * menu that is displayed when the user requests one for |
| * the control. The sequence of key strokes, button presses |
| * and/or button releases that are used to request a pop up |
| * menu is platform specific. |
| * <p> |
| * Note: Disposing of a control that has a pop up menu will |
| * dispose of the menu. To avoid this behavior, set the |
| * menu to null before the control is disposed. |
| * </p> |
| * |
| * @param menu the new pop up menu |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_MENU_NOT_POP_UP - the menu is not a pop up menu</li> |
| * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setMenu (Menu menu) { |
| checkWidget(); |
| if (menu != null) { |
| if ((menu.style & SWT.POP_UP) == 0) { |
| error (SWT.ERROR_MENU_NOT_POP_UP); |
| } |
| if (menu.parent != menuShell ()) { |
| error (SWT.ERROR_INVALID_PARENT); |
| } |
| } |
| this.menu = menu; |
| } |
| |
| @Override |
| void setOrientation (boolean create) { |
| if ((style & SWT.RIGHT_TO_LEFT) != 0 || !create) { |
| int dir = (style & SWT.RIGHT_TO_LEFT) != 0 ? GTK.GTK_TEXT_DIR_RTL : GTK.GTK_TEXT_DIR_LTR; |
| if (handle != 0) GTK.gtk_widget_set_direction (handle, dir); |
| if (fixedHandle != 0) GTK.gtk_widget_set_direction (fixedHandle, dir); |
| } |
| } |
| |
| /** |
| * Sets the orientation of the receiver, which must be one |
| * of the constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. |
| * <p> |
| * |
| * @param orientation new orientation style |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.7 |
| */ |
| public void setOrientation (int orientation) { |
| checkWidget (); |
| int flags = SWT.RIGHT_TO_LEFT | SWT.LEFT_TO_RIGHT; |
| if ((orientation & flags) == 0 || (orientation & flags) == flags) return; |
| style &= ~flags; |
| style |= orientation & flags; |
| setOrientation (false); |
| style &= ~SWT.MIRRORED; |
| checkMirrored (); |
| } |
| |
| /** |
| * Changes the parent of the widget to be the one provided. |
| * Returns <code>true</code> if the parent is successfully changed. |
| * |
| * @param parent the new parent for the control. |
| * @return <code>true</code> if the parent is changed and <code>false</code> otherwise. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is <code>null</code></li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean setParent (Composite parent) { |
| checkWidget (); |
| if (parent == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (parent.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (this.parent == parent) return true; |
| if (!isReparentable ()) return false; |
| GTK.gtk_widget_realize (parent.handle); |
| long topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation (topHandle, allocation); |
| int x = allocation.x; |
| int y = allocation.y; |
| int width = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| int height = (state & ZERO_HEIGHT) != 0 ? 0 : allocation.height; |
| if ((this.parent.style & SWT.MIRRORED) != 0) { |
| x = this.parent.getClientWidth () - width - x; |
| } |
| if ((parent.style & SWT.MIRRORED) != 0) { |
| x = parent.getClientWidth () - width - x; |
| } |
| releaseParent (); |
| Shell newShell = parent.getShell (), oldShell = getShell (); |
| Decorations newDecorations = parent.menuShell (), oldDecorations = menuShell (); |
| Menu [] menus = oldShell.findMenus (this); |
| if (oldShell != newShell || oldDecorations != newDecorations) { |
| fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); |
| newDecorations.fixAccelGroup (); |
| oldDecorations.fixAccelGroup (); |
| } |
| long newParent = parent.parentingHandle(); |
| gtk_widget_reparent(this, newParent); |
| OS.swt_fixed_move (newParent, topHandle, x, y); |
| /* |
| * Restore the original widget size since GTK does not keep it. |
| */ |
| resizeHandle(width, height); |
| /* |
| * Cause a size allocation this widget's topHandle. Note that |
| * all calls to gtk_widget_size_allocate() must be preceded by |
| * a call to gtk_widget_size_request(). |
| */ |
| GtkRequisition requisition = new GtkRequisition (); |
| gtk_widget_get_preferred_size (topHandle, requisition); |
| allocation.x = x; |
| allocation.y = y; |
| allocation.width = width; |
| allocation.height = height; |
| if (GTK.GTK4) { |
| GTK.gtk_widget_size_allocate (topHandle, allocation, -1); |
| } else { |
| GTK.gtk_widget_size_allocate (topHandle, allocation); |
| } |
| this.parent = parent; |
| setZOrder (null, false, true); |
| reskin (SWT.ALL); |
| return true; |
| } |
| |
| void setParentBackground () { |
| setBackgroundGdkRGBA (handle, null); |
| if (fixedHandle != 0) setBackgroundGdkRGBA (fixedHandle, null); |
| } |
| |
| void setParentGdkResource (Control child) { |
| } |
| |
| boolean setRadioSelection (boolean value) { |
| return false; |
| } |
| |
| /** |
| * If the argument is <code>false</code>, causes subsequent drawing |
| * operations in the receiver to be ignored. No drawing of any kind |
| * can occur in the receiver until the flag is set to true. |
| * Graphics operations that occurred while the flag was |
| * <code>false</code> are lost. When the flag is set to <code>true</code>, |
| * the entire widget is marked as needing to be redrawn. Nested calls |
| * to this method are stacked. |
| * <p> |
| * Note: This operation is a hint and may not be supported on some |
| * platforms or for some widgets. |
| * </p> |
| * |
| * @param redraw the new redraw state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #redraw(int, int, int, int, boolean) |
| * @see #update() |
| */ |
| public void setRedraw (boolean redraw) { |
| checkWidget(); |
| if (redraw) { |
| if (--drawCount == 0) { |
| if (!GTK.GTK4) { |
| if (redrawWindow != 0) { |
| long window = paintWindow (); |
| /* Explicitly hiding the window avoids flicker on GTK+ >= 2.6 */ |
| GDK.gdk_window_hide (redrawWindow); |
| GDK.gdk_window_destroy (redrawWindow); |
| GDK.gdk_window_set_events (window, GTK3.gtk_widget_get_events (paintHandle ())); |
| redrawWindow = 0; |
| } |
| } |
| } |
| } else { |
| if (drawCount++ == 0) { |
| if (GTK.gtk_widget_get_realized (handle)) { |
| Rectangle bounds = getBoundsInPixels (); |
| if (!GTK.GTK4) { |
| long window = paintWindow (); |
| GdkWindowAttr attributes = new GdkWindowAttr (); |
| attributes.width = bounds.width; |
| attributes.height = bounds.height; |
| attributes.event_mask = GDK.GDK_EXPOSURE_MASK; |
| attributes.window_type = GDK.GDK_WINDOW_CHILD; |
| redrawWindow = GDK.gdk_window_new (window, attributes, 0); |
| if (redrawWindow != 0) { |
| int mouseMask = GDK.GDK_BUTTON_PRESS_MASK | GDK.GDK_BUTTON_RELEASE_MASK | |
| GDK.GDK_ENTER_NOTIFY_MASK | GDK.GDK_LEAVE_NOTIFY_MASK | |
| GDK.GDK_POINTER_MOTION_MASK | GDK.GDK_POINTER_MOTION_HINT_MASK | |
| GDK.GDK_BUTTON_MOTION_MASK | GDK.GDK_BUTTON1_MOTION_MASK | |
| GDK.GDK_BUTTON2_MOTION_MASK | GDK.GDK_BUTTON3_MOTION_MASK; |
| GDK.gdk_window_set_events (window, GDK.gdk_window_get_events (window) & ~mouseMask); |
| // No gdk_surface_set_background_pattern() on GTK4. |
| if (GTK.GTK_VERSION < OS.VERSION(3, 22, 0)) { |
| GDK.gdk_window_set_background_pattern(redrawWindow, 0); |
| } |
| GDK.gdk_window_show (redrawWindow); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| boolean setTabItemFocus (boolean next) { |
| if (!isShowing ()) return false; |
| return forceFocus (); |
| } |
| |
| /** |
| * Sets the base text direction (a.k.a. "paragraph direction") of the receiver, |
| * which must be one of the constants <code>SWT.LEFT_TO_RIGHT</code>, |
| * <code>SWT.RIGHT_TO_LEFT</code>, or <code>SWT.AUTO_TEXT_DIRECTION</code>. |
| * <p> |
| * <code>setOrientation</code> would override this value with the text direction |
| * that is consistent with the new orientation. |
| * </p> |
| * <p> |
| * <b>Warning</b>: This API is currently only implemented on Windows. |
| * It doesn't set the base text direction on GTK and Cocoa. |
| * </p> |
| * |
| * @param textDirection the base text direction style |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SWT#LEFT_TO_RIGHT |
| * @see SWT#RIGHT_TO_LEFT |
| * @see SWT#AUTO_TEXT_DIRECTION |
| * @see SWT#FLIP_TEXT_DIRECTION |
| * |
| * @since 3.102 |
| */ |
| public void setTextDirection(int textDirection) { |
| checkWidget (); |
| } |
| |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that the default tool tip for the |
| * control will be shown. For a control that has a default |
| * tool tip, such as the Tree control on Windows, setting |
| * the tool tip text to an empty string replaces the default, |
| * causing no tool tip text to be shown. |
| * <p> |
| * The mnemonic indicator (character '&') is not displayed in a tool tip. |
| * To display a single '&' in the tool tip, the character '&' can be |
| * escaped by doubling it in the string. |
| * </p> |
| * <p> |
| * NOTE: This operation is a hint and behavior is platform specific, on Windows |
| * for CJK-style mnemonics of the form " (&C)" at the end of the tooltip text |
| * are not shown in tooltip. |
| * </p> |
| * |
| * @param string the new tool tip text (or null) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setToolTipText (String string) { |
| checkWidget(); |
| if (!Objects.equals(string, toolTipText)) { |
| toolTipText = string; |
| setToolTipText (_getShell (), string); |
| } |
| } |
| |
| void setToolTipText (Shell shell, String newString) { |
| /* |
| * Feature in GTK. In order to prevent children widgets |
| * from inheriting their parent's tooltip, the tooltip is |
| * a set on a shell only. In order to force the shell tooltip |
| * to update when a new tip string is set, the existing string |
| * in the tooltip is set to null, followed by running a query. |
| * The real tip text can then be set. |
| * |
| * Note that this will only run if the control for which the |
| * tooltip is being set is the current control (i.e. the control |
| * under the pointer). |
| */ |
| if (display.currentControl == this) { |
| shell.setToolTipText(shell.handle, newString); |
| } |
| } |
| |
| /** |
| * Sets whether this control should send touch events (by default controls do not). |
| * Setting this to <code>false</code> causes the receiver to send gesture events |
| * instead. No exception is thrown if a touch-based input device is not |
| * detected (this can be determined with <code>Display#getTouchEnabled()</code>). |
| * |
| * @param enabled the new touch-enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Display#getTouchEnabled |
| * |
| * @since 3.7 |
| */ |
| public void setTouchEnabled(boolean enabled) { |
| checkWidget(); |
| } |
| |
| /** |
| * Marks the receiver as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param visible the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setVisible (boolean visible) { |
| checkWidget(); |
| if (((state & HIDDEN) == 0) == visible) return; |
| long topHandle = topHandle(); |
| if (visible) { |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in the show |
| * event. If this happens, just return. |
| */ |
| sendEvent (SWT.Show); |
| if (isDisposed ()) return; |
| state &= ~HIDDEN; |
| if ((state & (ZERO_WIDTH | ZERO_HEIGHT)) == 0) { |
| if (!GTK.GTK4) { |
| if (enableWindow != 0) GDK.gdk_window_show_unraised(enableWindow); |
| } |
| GTK.gtk_widget_show (topHandle); |
| } |
| } else { |
| /* |
| * Bug in GTK. Invoking gtk_widget_hide() on a widget that has |
| * focus causes a focus_out_event to be sent. If the client disposes |
| * the widget inside the event, GTK GP's. The fix is to reassign focus |
| * before hiding the widget. |
| * |
| * NOTE: In order to stop the same widget from taking focus, |
| * temporarily clear and set the GTK_VISIBLE flag. |
| */ |
| Control control = null; |
| boolean fixFocus = false; |
| if (display.focusEvent != SWT.FocusOut) { |
| control = display.getFocusControl (); |
| fixFocus = isFocusAncestor (control); |
| } |
| state |= HIDDEN; |
| if (fixFocus) { |
| GTK.gtk_widget_set_can_focus (topHandle, false); |
| fixFocus (control); |
| if (isDisposed ()) return; |
| GTK.gtk_widget_set_can_focus (topHandle, true); |
| } |
| GTK.gtk_widget_hide (topHandle); |
| if (isDisposed ()) return; |
| if (!GTK.GTK4) { |
| if (enableWindow != 0) GDK.gdk_window_hide(enableWindow); |
| } |
| |
| sendEvent (SWT.Hide); |
| } |
| } |
| |
| void setZOrder (Control sibling, boolean above, boolean fixRelations) { |
| setZOrder (sibling, above, fixRelations, true); |
| } |
| |
| void setZOrder (Control sibling, boolean above, boolean fixRelations, boolean fixChildren) { |
| int index = 0, siblingIndex = 0, oldNextIndex = -1; |
| Control[] children = null; |
| if (fixRelations) { |
| /* determine the receiver's and sibling's indexes in the parent */ |
| children = parent._getChildren (); |
| while (index < children.length) { |
| if (children [index] == this) break; |
| index++; |
| } |
| if (sibling != null) { |
| while (siblingIndex < children.length) { |
| if (children [siblingIndex] == sibling) break; |
| siblingIndex++; |
| } |
| } |
| /* remove "Labelled by" relationships that will no longer be valid */ |
| removeRelation (); |
| if (index + 1 < children.length) { |
| oldNextIndex = index + 1; |
| children [oldNextIndex].removeRelation (); |
| } |
| if (sibling != null) { |
| if (above) { |
| sibling.removeRelation (); |
| } else { |
| if (siblingIndex + 1 < children.length) { |
| children [siblingIndex + 1].removeRelation (); |
| } |
| } |
| } |
| } |
| |
| long topHandle = topHandle (); |
| long siblingHandle = sibling != null ? sibling.topHandle () : 0; |
| if (GTK.GTK4) { |
| //TODO: Test GTK3 behavior then implement, probably using gdk_toplevel_lower |
| } else { |
| long window = gtk_widget_get_window (topHandle); |
| if (window != 0) { |
| long siblingWindow = 0; |
| if (sibling != null) { |
| if (above && sibling.enableWindow != 0) { |
| siblingWindow = enableWindow; |
| } else { |
| siblingWindow = GTK3.gtk_widget_get_window (siblingHandle); |
| } |
| } |
| long redrawWindow = fixChildren ? parent.redrawWindow : 0; |
| if (!OS.isX11 () || (siblingWindow == 0 && (!above || redrawWindow == 0))) { |
| if (above) { |
| GDK.gdk_window_raise (window); |
| if (redrawWindow != 0) GDK.gdk_window_raise (redrawWindow); |
| if (enableWindow != 0) GDK.gdk_window_raise (enableWindow); |
| } else { |
| if (enableWindow != 0) GDK.gdk_window_lower (enableWindow); |
| GDK.gdk_window_lower (window); |
| } |
| } else { |
| long siblingW = siblingWindow != 0 ? siblingWindow : redrawWindow; |
| boolean stack_mode = above; |
| if (redrawWindow != 0 && siblingWindow == 0) stack_mode = false; |
| restackWindow (window, siblingW, stack_mode); |
| if (enableWindow != 0) { |
| restackWindow (enableWindow, window, true); |
| } |
| } |
| } |
| } |
| if (fixChildren) { |
| if (above) { |
| parent.moveAbove (topHandle, siblingHandle); |
| } else { |
| parent.moveBelow (topHandle, siblingHandle); |
| } |
| } |
| /* Make sure that the parent internal windows are on the bottom of the stack */ |
| if (!above && fixChildren) parent.fixZOrder (); |
| |
| if (fixRelations) { |
| /* determine the receiver's new index in the parent */ |
| if (sibling != null) { |
| if (above) { |
| index = siblingIndex - (index < siblingIndex ? 1 : 0); |
| } else { |
| index = siblingIndex + (siblingIndex < index ? 1 : 0); |
| } |
| } else { |
| if (above) { |
| index = 0; |
| } else { |
| index = children.length - 1; |
| } |
| } |
| |
| /* add new "Labelled by" relations as needed */ |
| children = parent._getChildren (); |
| if (0 < index) { |
| children [index - 1].addRelation (this); |
| } |
| if (index + 1 < children.length) { |
| addRelation (children [index + 1]); |
| } |
| if (oldNextIndex != -1) { |
| if (oldNextIndex <= index) oldNextIndex--; |
| /* the last two conditions below ensure that duplicate relations are not hooked */ |
| if (0 < oldNextIndex && oldNextIndex != index && oldNextIndex != index + 1) { |
| children [oldNextIndex - 1].addRelation (children [oldNextIndex]); |
| } |
| } |
| } |
| } |
| |
| void setWidgetBackground () { |
| GdkRGBA rgba = (state & BACKGROUND) != 0 ? getBackgroundGdkRGBA () : null; |
| if (fixedHandle != 0) setBackgroundGdkRGBA (fixedHandle, rgba); |
| setBackgroundGdkRGBA (handle, rgba); |
| } |
| |
| boolean showMenu (int x, int y) { |
| return showMenu (x, y, SWT.MENU_MOUSE); |
| } |
| |
| boolean showMenu (int x, int y, int detail) { |
| Event event = new Event (); |
| Rectangle eventRect = new Rectangle (x, y, 0, 0); |
| event.setBounds (DPIUtil.autoScaleDown (eventRect)); |
| event.detail = detail; |
| sendEvent (SWT.MenuDetect, event); |
| //widget could be disposed at this point |
| if (isDisposed ()) return false; |
| if (event.doit) { |
| if (menu != null && !menu.isDisposed ()) { |
| if (GTK.GTK4) { |
| |
| long temp = 0; |
| if (GTK.gtk_widget_get_parent(menu.handle) != 0) { |
| temp = OS.g_object_ref(menu.handle); |
| GTK.gtk_widget_unparent(menu.handle); |
| } |
| GTK.gtk_widget_set_parent(menu.handle, this.handle); |
| if (temp != 0) OS.g_object_unref(temp); |
| |
| |
| menu.setLocationInPixels(x, y); |
| menu.setVisible(true); |
| |
| return true; |
| } else { |
| Rectangle rect = DPIUtil.autoScaleUp (event.getBounds ()); |
| if (rect.x != x || rect.y != y) { |
| menu.setLocationInPixels (rect.x, rect.y); |
| } |
| menu.setVisible (true); |
| return true; |
| } |
| |
| } |
| } |
| return false; |
| } |
| |
| void showWidget () { |
| // Comment this line to disable zero-sized widgets |
| state |= ZERO_WIDTH | ZERO_HEIGHT; |
| long topHandle = topHandle (); |
| long parentHandle = parent.parentingHandle (); |
| parent.setParentGdkResource (this); |
| if (GTK.GTK4) { |
| OS.swt_fixed_add(parentHandle, topHandle); |
| } else { |
| GTK3.gtk_container_add(parentHandle, topHandle); |
| } |
| if (handle != 0 && handle != topHandle) GTK.gtk_widget_show (handle); |
| if ((state & (ZERO_WIDTH | ZERO_HEIGHT)) == 0) { |
| if (fixedHandle != 0) GTK.gtk_widget_show (fixedHandle); |
| } |
| if (fixedHandle != 0) fixStyle (fixedHandle); |
| } |
| |
| void sort (int [] items) { |
| /* Shell Sort from K&R, pg 108 */ |
| int length = items.length; |
| for (int gap=length/2; gap>0; gap/=2) { |
| for (int i=gap; i<length; i++) { |
| for (int j=i-gap; j>=0; j-=gap) { |
| if (items [j] <= items [j + gap]) { |
| int swap = items [j]; |
| items [j] = items [j + gap]; |
| items [j + gap] = swap; |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Based on the argument, perform one of the expected platform |
| * traversal action. The argument should be one of the constants: |
| * <code>SWT.TRAVERSE_ESCAPE</code>, <code>SWT.TRAVERSE_RETURN</code>, |
| * <code>SWT.TRAVERSE_TAB_NEXT</code>, <code>SWT.TRAVERSE_TAB_PREVIOUS</code>, |
| * <code>SWT.TRAVERSE_ARROW_NEXT</code>, <code>SWT.TRAVERSE_ARROW_PREVIOUS</code>, |
| * <code>SWT.TRAVERSE_PAGE_NEXT</code> and <code>SWT.TRAVERSE_PAGE_PREVIOUS</code>. |
| * |
| * @param traversal the type of traversal |
| * @return true if the traversal succeeded |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean traverse (int traversal) { |
| checkWidget (); |
| Event event = new Event (); |
| event.doit = true; |
| event.detail = traversal; |
| return traverse (event); |
| } |
| |
| /** |
| * Performs a platform traversal action corresponding to a <code>KeyDown</code> event. |
| * |
| * <p>Valid traversal values are |
| * <code>SWT.TRAVERSE_NONE</code>, <code>SWT.TRAVERSE_MNEMONIC</code>, |
| * <code>SWT.TRAVERSE_ESCAPE</code>, <code>SWT.TRAVERSE_RETURN</code>, |
| * <code>SWT.TRAVERSE_TAB_NEXT</code>, <code>SWT.TRAVERSE_TAB_PREVIOUS</code>, |
| * <code>SWT.TRAVERSE_ARROW_NEXT</code>, <code>SWT.TRAVERSE_ARROW_PREVIOUS</code>, |
| * <code>SWT.TRAVERSE_PAGE_NEXT</code> and <code>SWT.TRAVERSE_PAGE_PREVIOUS</code>. |
| * If <code>traversal</code> is <code>SWT.TRAVERSE_NONE</code> then the Traverse |
| * event is created with standard values based on the KeyDown event. If |
| * <code>traversal</code> is one of the other traversal constants then the Traverse |
| * event is created with this detail, and its <code>doit</code> is taken from the |
| * KeyDown event. |
| * </p> |
| * |
| * @param traversal the type of traversal, or <code>SWT.TRAVERSE_NONE</code> to compute |
| * this from <code>event</code> |
| * @param event the KeyDown event |
| * |
| * @return <code>true</code> if the traversal succeeded |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT if the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.6 |
| */ |
| public boolean traverse (int traversal, Event event) { |
| checkWidget (); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return traverse (traversal, event.character, event.keyCode, event.keyLocation, event.stateMask, event.doit); |
| } |
| |
| /** |
| * Performs a platform traversal action corresponding to a <code>KeyDown</code> event. |
| * |
| * <p>Valid traversal values are |
| * <code>SWT.TRAVERSE_NONE</code>, <code>SWT.TRAVERSE_MNEMONIC</code>, |
| * <code>SWT.TRAVERSE_ESCAPE</code>, <code>SWT.TRAVERSE_RETURN</code>, |
| * <code>SWT.TRAVERSE_TAB_NEXT</code>, <code>SWT.TRAVERSE_TAB_PREVIOUS</code>, |
| * <code>SWT.TRAVERSE_ARROW_NEXT</code>, <code>SWT.TRAVERSE_ARROW_PREVIOUS</code>, |
| * <code>SWT.TRAVERSE_PAGE_NEXT</code> and <code>SWT.TRAVERSE_PAGE_PREVIOUS</code>. |
| * If <code>traversal</code> is <code>SWT.TRAVERSE_NONE</code> then the Traverse |
| * event is created with standard values based on the KeyDown event. If |
| * <code>traversal</code> is one of the other traversal constants then the Traverse |
| * event is created with this detail, and its <code>doit</code> is taken from the |
| * KeyDown event. |
| * </p> |
| * |
| * @param traversal the type of traversal, or <code>SWT.TRAVERSE_NONE</code> to compute |
| * this from <code>event</code> |
| * @param event the KeyDown event |
| * |
| * @return <code>true</code> if the traversal succeeded |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT if the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.6 |
| */ |
| public boolean traverse (int traversal, KeyEvent event) { |
| checkWidget (); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return traverse (traversal, event.character, event.keyCode, event.keyLocation, event.stateMask, event.doit); |
| } |
| |
| boolean traverse (int traversal, char character, int keyCode, int keyLocation, int stateMask, boolean doit) { |
| if (traversal == SWT.TRAVERSE_NONE) { |
| switch (keyCode) { |
| case SWT.ESC: { |
| traversal = SWT.TRAVERSE_ESCAPE; |
| doit = true; |
| break; |
| } |
| case SWT.CR: { |
| traversal = SWT.TRAVERSE_RETURN; |
| doit = true; |
| break; |
| } |
| case SWT.ARROW_DOWN: |
| case SWT.ARROW_RIGHT: { |
| traversal = SWT.TRAVERSE_ARROW_NEXT; |
| doit = false; |
| break; |
| } |
| case SWT.ARROW_UP: |
| case SWT.ARROW_LEFT: { |
| traversal = SWT.TRAVERSE_ARROW_PREVIOUS; |
| doit = false; |
| break; |
| } |
| case SWT.TAB: { |
| traversal = (stateMask & SWT.SHIFT) != 0 ? SWT.TRAVERSE_TAB_PREVIOUS : SWT.TRAVERSE_TAB_NEXT; |
| doit = true; |
| break; |
| } |
| case SWT.PAGE_DOWN: { |
| if ((stateMask & SWT.CTRL) != 0) { |
| traversal = SWT.TRAVERSE_PAGE_NEXT; |
| doit = true; |
| } |
| break; |
| } |
| case SWT.PAGE_UP: { |
| if ((stateMask & SWT.CTRL) != 0) { |
| traversal = SWT.TRAVERSE_PAGE_PREVIOUS; |
| doit = true; |
| } |
| break; |
| } |
| default: { |
| if (character != 0 && (stateMask & (SWT.ALT | SWT.CTRL)) == SWT.ALT) { |
| traversal = SWT.TRAVERSE_MNEMONIC; |
| doit = true; |
| } |
| break; |
| } |
| } |
| } |
| |
| Event event = new Event (); |
| event.character = character; |
| event.detail = traversal; |
| event.doit = doit; |
| event.keyCode = keyCode; |
| event.keyLocation = keyLocation; |
| event.stateMask = stateMask; |
| Shell shell = getShell (); |
| |
| boolean all = false; |
| switch (traversal) { |
| case SWT.TRAVERSE_ESCAPE: |
| case SWT.TRAVERSE_RETURN: |
| case SWT.TRAVERSE_PAGE_NEXT: |
| case SWT.TRAVERSE_PAGE_PREVIOUS: { |
| all = true; |
| // FALL THROUGH |
| } |
| case SWT.TRAVERSE_ARROW_NEXT: |
| case SWT.TRAVERSE_ARROW_PREVIOUS: |
| case SWT.TRAVERSE_TAB_NEXT: |
| case SWT.TRAVERSE_TAB_PREVIOUS: { |
| /* traversal is a valid traversal action */ |
| break; |
| } |
| case SWT.TRAVERSE_MNEMONIC: { |
| return translateMnemonic (event, null) || shell.translateMnemonic (event, this); |
| } |
| default: { |
| /* traversal is not a valid traversal action */ |
| return false; |
| } |
| } |
| |
| Control control = this; |
| do { |
| if (control.traverse (event)) return true; |
| if (!event.doit && control.hooks (SWT.Traverse)) return false; |
| if (control == shell) return false; |
| control = control.parent; |
| } while (all && control != null); |
| return false; |
| } |
| |
| boolean translateMnemonic (Event event, Control control) { |
| if (control == this) return false; |
| if (!isVisible () || !isEnabled ()) return false; |
| event.doit = this == display.mnemonicControl || mnemonicMatch (event.character); |
| return traverse (event); |
| } |
| |
| boolean translateMnemonic (int keyval, long event) { |
| long key = GDK.gdk_keyval_to_unicode (keyval); |
| int [] state = new int[1]; |
| if (GTK.GTK4) { |
| state[0] = GDK.gdk_event_get_modifier_state(event); |
| } else { |
| GDK.gdk_event_get_state(event, state); |
| } |
| |
| if (key < 0x20) return false; |
| if (state[0] == 0) { |
| int code = traversalCode (keyval, event); |
| if ((code & SWT.TRAVERSE_MNEMONIC) == 0) return false; |
| } else { |
| Shell shell = _getShell (); |
| int mask = GDK.GDK_CONTROL_MASK | GDK.GDK_SHIFT_MASK | GDK.GDK_MOD1_MASK; |
| if (GTK.GTK4) { |
| if (state[0] != GDK.GDK_MOD1_MASK) return false; |
| } else { |
| if ((state[0] & mask) != GTK3.gtk_window_get_mnemonic_modifier (shell.shellHandle)) return false; |
| } |
| } |
| Decorations shell = menuShell (); |
| if (shell.isVisible () && shell.isEnabled ()) { |
| Event javaEvent = new Event (); |
| javaEvent.detail = SWT.TRAVERSE_MNEMONIC; |
| if (setKeyState (javaEvent, event)) { |
| return translateMnemonic (javaEvent, null) || shell.translateMnemonic (javaEvent, this); |
| } |
| } |
| return false; |
| } |
| |
| boolean translateTraversal (long event) { |
| int detail = SWT.TRAVERSE_NONE; |
| int [] eventKeyval = new int [1]; |
| int [] eventState = new int[1]; |
| if (GTK.GTK4) { |
| eventKeyval[0] = GDK.gdk_key_event_get_keyval(event); |
| eventState[0] = GDK.gdk_event_get_modifier_state(event); |
| } else { |
| GDK.gdk_event_get_keyval(event, eventKeyval); |
| GDK.gdk_event_get_state(event, eventState); |
| } |
| |
| int key = eventKeyval[0]; |
| int code = traversalCode (key, event); |
| boolean all = false; |
| switch (key) { |
| case GDK.GDK_Escape: { |
| all = true; |
| detail = SWT.TRAVERSE_ESCAPE; |
| break; |
| } |
| case GDK.GDK_KP_Enter: |
| case GDK.GDK_Return: { |
| all = true; |
| detail = SWT.TRAVERSE_RETURN; |
| break; |
| } |
| case GDK.GDK_ISO_Left_Tab: |
| case GDK.GDK_Tab: { |
| boolean next = (eventState[0] & GDK.GDK_SHIFT_MASK) == 0; |
| detail = next ? SWT.TRAVERSE_TAB_NEXT : SWT.TRAVERSE_TAB_PREVIOUS; |
| break; |
| } |
| case GDK.GDK_Up: |
| case GDK.GDK_Left: |
| case GDK.GDK_Down: |
| case GDK.GDK_Right: { |
| boolean next = key == GDK.GDK_Down || key == GDK.GDK_Right; |
| if (parent != null && (parent.style & SWT.MIRRORED) != 0) { |
| if (key == GDK.GDK_Left || key == GDK.GDK_Right) next = !next; |
| } |
| detail = next ? SWT.TRAVERSE_ARROW_NEXT : SWT.TRAVERSE_ARROW_PREVIOUS; |
| break; |
| } |
| case GDK.GDK_Page_Up: |
| case GDK.GDK_Page_Down: { |
| all = true; |
| if ((eventState[0] & GDK.GDK_CONTROL_MASK) == 0) return false; |
| detail = key == GDK.GDK_Page_Down ? SWT.TRAVERSE_PAGE_NEXT : SWT.TRAVERSE_PAGE_PREVIOUS; |
| break; |
| } |
| default: |
| return false; |
| } |
| Event javaEvent = new Event (); |
| javaEvent.doit = (code & detail) != 0; |
| javaEvent.detail = detail; |
| javaEvent.time = GDK.gdk_event_get_time(event); |
| if (!setKeyState (javaEvent, event)) return false; |
| Shell shell = getShell (); |
| Control control = this; |
| do { |
| if (control.traverse (javaEvent)) return true; |
| if (!javaEvent.doit && control.hooks (SWT.Traverse)) return false; |
| if (control == shell) return false; |
| control = control.parent; |
| } while (all && control != null); |
| return false; |
| } |
| |
| int traversalCode (int key, long event) { |
| int code = SWT.TRAVERSE_RETURN | SWT.TRAVERSE_TAB_NEXT | SWT.TRAVERSE_TAB_PREVIOUS | SWT.TRAVERSE_PAGE_NEXT | SWT.TRAVERSE_PAGE_PREVIOUS; |
| Shell shell = getShell (); |
| if (shell.parent != null) code |= SWT.TRAVERSE_ESCAPE; |
| return code; |
| } |
| |
| boolean traverse (Event event) { |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in the traverse |
| * event. If this happens, return true to stop further |
| * event processing. |
| */ |
| sendEvent (SWT.Traverse, event); |
| if (isDisposed ()) return true; |
| if (!event.doit) return false; |
| switch (event.detail) { |
| case SWT.TRAVERSE_NONE: return true; |
| case SWT.TRAVERSE_ESCAPE: return traverseEscape (); |
| case SWT.TRAVERSE_RETURN: return traverseReturn (); |
| case SWT.TRAVERSE_TAB_NEXT: return traverseGroup (true); |
| case SWT.TRAVERSE_TAB_PREVIOUS: return traverseGroup (false); |
| case SWT.TRAVERSE_ARROW_NEXT: return traverseItem (true); |
| case SWT.TRAVERSE_ARROW_PREVIOUS: return traverseItem (false); |
| case SWT.TRAVERSE_MNEMONIC: return traverseMnemonic (event.character); |
| case SWT.TRAVERSE_PAGE_NEXT: return traversePage (true); |
| case SWT.TRAVERSE_PAGE_PREVIOUS: return traversePage (false); |
| } |
| return false; |
| } |
| |
| boolean traverseEscape () { |
| return false; |
| } |
| |
| boolean traverseGroup (boolean next) { |
| Control root = computeTabRoot (); |
| Widget group = computeTabGroup (); |
| Widget [] list = root.computeTabList (); |
| int length = list.length; |
| int index = 0; |
| while (index < length) { |
| if (list [index] == group) break; |
| index++; |
| } |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in focus in |
| * or out events. Ensure that a disposed widget is |
| * not accessed. |
| */ |
| if (index == length) return false; |
| int start = index, offset = (next) ? 1 : -1; |
| while ((index = ((index + offset + length) % length)) != start) { |
| Widget widget = list [index]; |
| if (!widget.isDisposed () && widget.setTabGroupFocus (next)) { |
| return true; |
| } |
| } |
| if (group.isDisposed ()) return false; |
| return group.setTabGroupFocus (next); |
| } |
| |
| boolean traverseItem (boolean next) { |
| Control [] children = parent._getChildren (); |
| int length = children.length; |
| int index = 0; |
| while (index < length) { |
| if (children [index] == this) break; |
| index++; |
| } |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in focus in |
| * or out events. Ensure that a disposed widget is |
| * not accessed. |
| */ |
| if (index == length) return false; |
| int start = index, offset = (next) ? 1 : -1; |
| while ((index = (index + offset + length) % length) != start) { |
| Control child = children [index]; |
| if (!child.isDisposed () && child.isTabItem ()) { |
| if (child.setTabItemFocus (next)) return true; |
| } |
| } |
| return false; |
| } |
| |
| boolean traverseReturn () { |
| return false; |
| } |
| |
| boolean traversePage (boolean next) { |
| return false; |
| } |
| |
| boolean traverseMnemonic (char key) { |
| return mnemonicHit (key); |
| } |
| |
| /** |
| * Forces all outstanding paint requests for the widget |
| * to be processed before this method returns. If there |
| * are no outstanding paint request, this method does |
| * nothing. |
| * <p>Note:</p> |
| * <ul> |
| * <li>This method does not cause a redraw.</li> |
| * <li>Some OS versions forcefully perform automatic deferred painting. |
| * This method does nothing in that case.</li> |
| * </ul> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #redraw() |
| * @see #redraw(int, int, int, int, boolean) |
| * @see PaintListener |
| * @see SWT#Paint |
| */ |
| public void update () { |
| checkWidget (); |
| update (false, true); |
| } |
| |
| void update (boolean all, boolean flush) { |
| // checkWidget(); |
| if (!GTK.gtk_widget_get_visible (topHandle ())) return; |
| if (!GTK.gtk_widget_get_realized (handle)) return; |
| long window = paintWindow (); |
| if (flush) display.flushExposes (window, all); |
| } |
| |
| void updateBackgroundMode () { |
| int oldState = state & PARENT_BACKGROUND; |
| checkBackground (); |
| if (oldState != (state & PARENT_BACKGROUND)) { |
| setBackground (); |
| } |
| } |
| |
| void updateLayout (boolean all) { |
| /* Do nothing */ |
| } |
| |
| @Override |
| long windowProc (long handle, long arg0, long user_data) { |
| switch ((int)user_data) { |
| case EXPOSE_EVENT_INVERSE: { |
| if ((state & OBSCURED) != 0) break; |
| Control control = findBackgroundControl (); |
| boolean draw = control != null && control.backgroundImage != null; |
| if (!draw && (state & CANVAS) != 0) { |
| draw = (state & BACKGROUND) == 0; |
| } |
| if (draw) { |
| long cairo = arg0; |
| GdkRectangle rect = new GdkRectangle (); |
| GDK.gdk_cairo_get_clip_rectangle (cairo, rect); |
| if (control == null) control = this; |
| long gdkResource; |
| if (GTK.GTK4) { |
| gdkResource = GTK4.gtk_native_get_surface(GTK4.gtk_widget_get_native (handle)); |
| drawBackground (control, gdkResource, cairo, rect.x, rect.y, rect.width, rect.height); |
| } else { |
| gdkResource = GTK3.gtk_widget_get_window(handle); |
| if (gdkResource != 0) { |
| drawBackground (control, gdkResource, 0, rect.x, rect.y, rect.width, rect.height); |
| } else { |
| drawBackground (control, 0, cairo, rect.x, rect.y, rect.width, rect.height); |
| } |
| } |
| } |
| break; |
| } |
| case DRAW: { |
| if (paintHandle() == handle && drawRegion) { |
| return gtk_draw(handle, arg0); |
| } |
| } |
| } |
| return super.windowProc (handle, arg0, user_data); |
| } |
| |
| /** |
| * Gets the position of the top left corner of the control in root window (display) coordinates. |
| * GTK3 only, do not call on GTK4. |
| * |
| * @return the origin |
| */ |
| Point getWindowOrigin () { |
| int [] x = new int [1]; |
| int [] y = new int [1]; |
| |
| long window = eventWindow (); |
| GDK.gdk_window_get_origin (window, x, y); |
| |
| return new Point (x [0], y [0]); |
| } |
| |
| /** |
| * Gets the position of the top left corner of the control in root window (display) coordinates. |
| * GTK4 only, do not call on GTK3. |
| * |
| * @return the origin |
| */ |
| Point getSurfaceOrigin () { |
| double[] originX = new double[1], originY = new double[1]; |
| boolean success = GTK4.gtk_widget_translate_coordinates(fixedHandle, getShell().shellHandle, 0, 0, originX, originY); |
| |
| return success ? new Point((int)originX[0], (int)originY[0]) : new Point(0, 0); |
| } |
| } |
