| /******************************************************************************* |
| * Copyright (c) 2000, 2017 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * 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.*; |
| |
| /** |
| * Control is the abstract superclass of all windowed user interface classes. |
| * <p> |
| * <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><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 { |
| long /*int*/ fixedHandle; |
| long /*int*/ redrawWindow, enableWindow, provider; |
| int drawCount, backgroundAlpha = 255; |
| long /*int*/ enterNotifyEventId; |
| long /*int*/ dragGesture, zoomGesture, rotateGesture, panGesture; |
| Composite parent; |
| Cursor cursor; |
| Menu menu; |
| Image backgroundImage; |
| Font font; |
| Region region; |
| String toolTipText; |
| Object layoutData; |
| Accessible accessible; |
| Control labelRelation; |
| String cssBackground, cssForeground = " "; |
| |
| LinkedList <Event> dragDetectionQueue; |
| |
| /* these class variables are for the workaround for bug #427776 */ |
| static Callback enterNotifyEventFunc; |
| static int enterNotifyEventSignalId; |
| static int GTK_POINTER_WINDOW; |
| static int SWT_GRAB_WIDGET; |
| |
| static Callback gestureZoom, gestureRotation, gestureSwipe, gestureBegin, gestureEnd; |
| static { |
| gestureZoom = new Callback (Control.class, "magnifyProc", void.class, new Type[] { |
| long.class, double.class, long.class}); //$NON-NLS-1$ |
| if (gestureZoom.getAddress() == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| gestureRotation = new Callback (Control.class, "rotateProc", void.class, new Type[] { |
| long.class, double.class, double.class, long.class}); //$NON-NLS-1$ |
| if (gestureRotation.getAddress() == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| gestureSwipe = new Callback (Control.class, "swipeProc", void.class, new Type[] { |
| long.class, double.class, double.class, long.class}); //$NON-NLS-1$ |
| if (gestureSwipe.getAddress() == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS); |
| gestureBegin = new Callback (Control.class, "gestureBeginProc", void.class, new Type[] { |
| long.class, long.class, long.class}); //$NON-NLS-1$ |
| if (gestureBegin.getAddress() == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS); |
| gestureEnd = new Callback (Control.class, "gestureEndProc", void.class, new Type[] { |
| long.class, long.class, long.class}); //$NON-NLS-1$ |
| if (gestureEnd.getAddress() == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS); |
| } |
| |
| 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 () { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| return display.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND).handleRGBA; |
| } |
| |
| @Override |
| void deregister () { |
| super.deregister (); |
| if (fixedHandle != 0) display.removeWidget (fixedHandle); |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) display.removeWidget (imHandle); |
| } |
| |
| void drawBackground (Control control, long /*int*/ window, long /*int*/ region, int x, int y, int width, int height) { |
| drawBackground(control, window, 0, region, x, y, width, height); |
| } |
| |
| void drawBackground (Control control, long /*int*/ window, long /*int*/ cr, long /*int*/ region, int x, int y, int width, int height) { |
| long /*int*/ cairo = cr != 0 ? cr : OS.gdk_cairo_create(window); |
| if (cairo == 0) error (SWT.ERROR_NO_HANDLES); |
| if (region != 0) { |
| OS.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 /*int*/ 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; |
| if (OS.GTK3) { |
| rgba = control.getBackgroundGdkRGBA(); |
| Cairo.cairo_set_source_rgba (cairo, rgba.red, rgba.green, rgba.blue, rgba.alpha); |
| } else { |
| GdkColor color = control.getBackgroundGdkColor (); |
| Cairo.cairo_set_source_rgba_compatibility (cairo, color); |
| } |
| } |
| Cairo.cairo_rectangle (cairo, x, y, width, height); |
| Cairo.cairo_fill (cairo); |
| if (cairo != cr) Cairo.cairo_destroy(cairo); |
| } |
| |
| boolean drawGripper (GC gc, int x, int y, int width, int height, boolean vertical) { |
| long /*int*/ paintHandle = paintHandle (); |
| long /*int*/ window = gtk_widget_get_window (paintHandle); |
| if (window == 0) return false; |
| int orientation = vertical ? OS.GTK_ORIENTATION_HORIZONTAL : OS.GTK_ORIENTATION_VERTICAL; |
| if ((style & SWT.MIRRORED) != 0) x = getClientWidth () - width - x; |
| if (OS.GTK3) { |
| long /*int*/ context = OS.gtk_widget_get_style_context (paintHandle); |
| OS.gtk_style_context_save (context); |
| OS.gtk_style_context_add_class (context, OS.GTK_STYLE_CLASS_PANE_SEPARATOR); |
| OS.gtk_style_context_set_state (context, OS.GTK_STATE_FLAG_NORMAL); |
| OS.gtk_render_handle (context, gc.handle, x, y, width, height); |
| OS.gtk_style_context_restore (context); |
| } else { |
| OS.gtk_paint_handle (OS.gtk_widget_get_style (paintHandle), window, OS.GTK_STATE_NORMAL, OS.GTK_SHADOW_OUT, null, paintHandle, new byte [1], x, y, width, height, orientation); |
| } |
| return true; |
| } |
| |
| void drawWidget (GC gc) { |
| } |
| |
| void enableWidget (boolean enabled) { |
| OS.gtk_widget_set_sensitive (handle, enabled); |
| } |
| |
| long /*int*/ enterExitHandle () { |
| return eventHandle (); |
| } |
| |
| long /*int*/ eventHandle () { |
| return handle; |
| } |
| |
| long /*int*/ eventWindow () { |
| long /*int*/ eventHandle = eventHandle (); |
| OS.gtk_widget_realize (eventHandle); |
| return gtk_widget_get_window (eventHandle); |
| } |
| |
| 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 /*int*/ focusHandle = shell.vboxHandle; |
| OS.gtk_widget_set_can_focus (focusHandle, true); |
| OS.gtk_widget_grab_focus (focusHandle); |
| // widget could be disposed at this point |
| if (isDisposed ()) return; |
| OS.gtk_widget_set_can_focus (focusHandle, false); |
| } |
| |
| void fixStyle () { |
| if (fixedHandle != 0) fixStyle (fixedHandle); |
| } |
| |
| void fixStyle (long /*int*/ 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; |
| if (!OS.GTK3) { |
| long /*int*/ childStyle = parent.childStyle (); |
| if (childStyle != 0) { |
| GdkColor color = new GdkColor(); |
| OS.gtk_style_get_bg (childStyle, 0, color); |
| setBackgroundGdkColor (color); |
| } |
| } |
| } |
| |
| long /*int*/ focusHandle () { |
| return handle; |
| } |
| |
| long /*int*/ fontHandle () { |
| return handle; |
| } |
| |
| long /*int*/ 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 () { |
| /* Connect the keyboard signals */ |
| long /*int*/ focusHandle = focusHandle (); |
| int focusMask = OS.GDK_KEY_PRESS_MASK | OS.GDK_KEY_RELEASE_MASK | OS.GDK_FOCUS_CHANGE_MASK; |
| OS.gtk_widget_add_events (focusHandle, focusMask); |
| 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 [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], 0, display.getClosure (FOCUS), 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); |
| |
| /* Connect the mouse signals */ |
| long /*int*/ eventHandle = eventHandle (); |
| int eventMask = OS.GDK_POINTER_MOTION_MASK | OS.GDK_BUTTON_PRESS_MASK | OS.GDK_BUTTON_RELEASE_MASK | OS.GDK_SCROLL_MASK | OS.GDK_SMOOTH_SCROLL_MASK; |
| OS.gtk_widget_add_events (eventHandle, eventMask); |
| 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 [MOTION_NOTIFY_EVENT], 0, display.getClosure (MOTION_NOTIFY_EVENT), false); |
| OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [SCROLL_EVENT], 0, display.getClosure (SCROLL_EVENT), false); |
| |
| /* Connect enter/exit signals */ |
| long /*int*/ enterExitHandle = enterExitHandle (); |
| int enterExitMask = OS.GDK_ENTER_NOTIFY_MASK | OS.GDK_LEAVE_NOTIFY_MASK; |
| OS.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); |
| |
| /*Connect gesture signals */ |
| setZoomGesture(); |
| setDragGesture(); |
| setRotateGesture(); |
| |
| /* |
| * Feature in GTK. 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. |
| */ |
| long /*int*/ blockHandle = fixedHandle != 0 ? fixedHandle : eventHandle; |
| 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 */ |
| 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); |
| } |
| |
| /* Connect the paint signal */ |
| long /*int*/ paintHandle = paintHandle (); |
| int paintMask = OS.GDK_EXPOSURE_MASK; |
| OS.gtk_widget_add_events (paintHandle, paintMask); |
| |
| OS.g_signal_connect_closure_by_id (paintHandle, display.signalIds [EXPOSE_EVENT], 0, display.getClosure (EXPOSE_EVENT_INVERSE), false); |
| |
| OS.g_signal_connect_closure_by_id (paintHandle, display.signalIds [EXPOSE_EVENT], 0, display.getClosure (EXPOSE_EVENT), true); |
| |
| /* Connect the Input Method signals */ |
| 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); |
| long /*int*/ 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); |
| } |
| |
| OS.g_signal_connect_closure_by_id (paintHandle, display.signalIds [STYLE_SET], 0, display.getClosure (STYLE_SET), false); |
| |
| long /*int*/ topHandle = topHandle (); |
| OS.g_signal_connect_closure_by_id (topHandle, display.signalIds [MAP], 0, display.getClosure (MAP), true); |
| |
| if (enterNotifyEventFunc == null && OS.GTK3 && OS.GTK_VERSION < OS.VERSION (3, 11, 9)) { |
| enterNotifyEventFunc = new Callback (Control.class, "enterNotifyEventProc", 4); |
| if (enterNotifyEventFunc.getAddress () == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| |
| enterNotifyEventSignalId = OS.g_signal_lookup (OS.enter_notify_event, OS.GTK_TYPE_WIDGET ()); |
| |
| byte [] buffer = Converter.wcsToMbcs ("gtk-pointer-window", true); |
| GTK_POINTER_WINDOW = OS.g_quark_from_string (buffer); |
| buffer = Converter.wcsToMbcs ("swt-grab-widget", true); |
| SWT_GRAB_WIDGET = OS.g_quark_from_string (buffer); |
| } |
| } |
| |
| boolean hooksPaint () { |
| return hooks (SWT.Paint) || filters (SWT.Paint); |
| } |
| |
| @Override |
| long /*int*/ hoverProc (long /*int*/ widget) { |
| int [] x = new int [1], y = new int [1], mask = new int [1]; |
| gdk_window_get_device_position (0, x, y, mask); |
| sendMouseEvent (SWT.MouseHover, 0, /*time*/0, x [0], y [0], false, mask [0]); |
| /* Always return zero in order to cancel the hover timer */ |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ topHandle() { |
| if (fixedHandle != 0) return fixedHandle; |
| return super.topHandle (); |
| } |
| |
| long /*int*/ paintHandle () { |
| long /*int*/ topHandle = topHandle (); |
| long /*int*/ paintHandle = handle; |
| while (paintHandle != topHandle) { |
| if (OS.gtk_widget_get_has_window (paintHandle)) break; |
| paintHandle = OS.gtk_widget_get_parent (paintHandle); |
| } |
| return paintHandle; |
| } |
| |
| @Override |
| long /*int*/ paintWindow () { |
| long /*int*/ paintHandle = paintHandle (); |
| OS.gtk_widget_realize (paintHandle); |
| return gtk_widget_get_window (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 /*int*/ topHandle = topHandle (); |
| OS.gtk_widget_realize (topHandle); |
| if (OS.GTK3) { |
| OS.gtk_widget_draw(topHandle, gc.handle); |
| return true; |
| } |
| long /*int*/ window = gtk_widget_get_window (topHandle); |
| GCData data = gc.getGCData (); |
| OS.gdk_window_process_updates (window, true); |
| long /*int*/ drawable = data.drawable; |
| if (drawable == 0) drawable = OS.gdk_get_default_root_window(); |
| printWidget (gc, drawable, OS.gdk_drawable_get_depth (drawable), 0, 0); |
| return true; |
| } |
| |
| void printWidget (GC gc, long /*int*/ drawable, int depth, int x, int y) { |
| boolean obscured = (state & OBSCURED) != 0; |
| state &= ~OBSCURED; |
| long /*int*/ topHandle = topHandle (); |
| long /*int*/ window = gtk_widget_get_window (topHandle); |
| printWindow (true, this, gc, drawable, depth, window, x, y); |
| if (obscured) state |= OBSCURED; |
| } |
| |
| void printWindow (boolean first, Control control, GC gc, long /*int*/ drawable, int depth, long /*int*/ window, int x, int y) { |
| if (OS.gdk_drawable_get_depth (window) != depth) return; |
| GdkRectangle rect = new GdkRectangle (); |
| int [] width = new int [1], height = new int [1]; |
| gdk_window_get_size (window, width, height); |
| rect.width = width [0]; |
| rect.height = height [0]; |
| OS.gdk_window_begin_paint_rect (window, rect); |
| long /*int*/ [] real_drawable = new long /*int*/ [1]; |
| int [] x_offset = new int [1], y_offset = new int [1]; |
| OS.gdk_window_get_internal_paint_info (window, real_drawable, x_offset, y_offset); |
| long /*int*/ [] userData = new long /*int*/ [1]; |
| OS.gdk_window_get_user_data (window, userData); |
| if (userData [0] != 0) { |
| long /*int*/ eventPtr = OS.gdk_event_new (OS.GDK_EXPOSE); |
| GdkEventExpose event = new GdkEventExpose (); |
| event.type = OS.GDK_EXPOSE; |
| event.window = OS.g_object_ref (window); |
| event.area_width = rect.width; |
| event.area_height = rect.height; |
| event.region = OS.gdk_region_rectangle (rect); |
| OS.memmove (eventPtr, event, GdkEventExpose.sizeof); |
| OS.gtk_widget_send_expose (userData [0], eventPtr); |
| OS.gdk_event_free (eventPtr); |
| } |
| int destX = x, destY = y, destWidth = width [0], destHeight = height [0]; |
| if (!first) { |
| int [] cX = new int [1], cY = new int [1]; |
| OS.gdk_window_get_position (window, cX, cY); |
| long /*int*/ parentWindow = OS.gdk_window_get_parent (window); |
| int [] pW = new int [1], pH = new int [1]; |
| gdk_window_get_size (parentWindow, pW, pH); |
| destX = x - cX [0]; |
| destY = y - cY [0]; |
| destWidth = Math.min (cX [0] + width [0], pW [0]); |
| destHeight = Math.min (cY [0] + height [0], pH [0]); |
| } |
| GCData gcData = gc.getGCData(); |
| long /*int*/ cairo = gcData.cairo; |
| long /*int*/ xDisplay = OS.gdk_x11_display_get_xdisplay(OS.gdk_display_get_default()); |
| long /*int*/ xVisual = OS.gdk_x11_visual_get_xvisual(OS.gdk_visual_get_system()); |
| long /*int*/ xDrawable = OS.GDK_PIXMAP_XID(real_drawable [0]); |
| long /*int*/ surface = Cairo.cairo_xlib_surface_create(xDisplay, xDrawable, xVisual, width [0], height [0]); |
| if (surface == 0) error(SWT.ERROR_NO_HANDLES); |
| Cairo.cairo_save(cairo); |
| Cairo.cairo_rectangle(cairo, destX , destY, destWidth, destHeight); |
| Cairo.cairo_clip(cairo); |
| Cairo.cairo_translate(cairo, destX, destY); |
| long /*int*/ pattern = Cairo.cairo_pattern_create_for_surface(surface); |
| if (pattern == 0) error(SWT.ERROR_NO_HANDLES); |
| Cairo.cairo_pattern_set_filter(pattern, Cairo.CAIRO_FILTER_BEST); |
| Cairo.cairo_set_source(cairo, pattern); |
| if (gcData.alpha != 0xFF) { |
| Cairo.cairo_paint_with_alpha(cairo, gcData.alpha / (float)0xFF); |
| } else { |
| Cairo.cairo_paint(cairo); |
| } |
| Cairo.cairo_restore(cairo); |
| Cairo.cairo_pattern_destroy(pattern); |
| Cairo.cairo_surface_destroy(surface); |
| OS.gdk_window_end_paint (window); |
| long /*int*/ children = OS.gdk_window_get_children (window); |
| if (children != 0) { |
| long /*int*/ windows = children; |
| while (windows != 0) { |
| long /*int*/ child = OS.g_list_data (windows); |
| if (OS.gdk_window_is_visible (child)) { |
| long /*int*/ [] data = new long /*int*/ [1]; |
| OS.gdk_window_get_user_data (child, data); |
| if (data [0] != 0) { |
| Widget widget = display.findWidget (data [0]); |
| if (widget == null || widget == control) { |
| int [] x_pos = new int [1], y_pos = new int [1]; |
| OS.gdk_window_get_position (child, x_pos, y_pos); |
| printWindow (false, control, gc, drawable, depth, child, x + x_pos [0], y + y_pos [0]); |
| } |
| } |
| } |
| windows = OS.g_list_next (windows); |
| } |
| OS.g_list_free (children); |
| } |
| } |
| |
| /** |
| * 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 checkForeground () { |
| /* |
| * Feature in GTK 3. The widget foreground is inherited from the immediate |
| * parent. This is not the expected behavior for SWT. The fix is to avoid |
| * the inheritance by explicitly setting the default foreground on the widget. |
| * |
| * This can be removed on GTK3.16+. |
| */ |
| if (OS.GTK_VERSION < OS.VERSION(3, 14, 0) && OS.GTK_VERSION >= OS.VERSION(3, 0, 0)) { |
| setForegroundGdkRGBA (topHandle (), display.COLOR_WIDGET_FOREGROUND_RGBA); |
| } |
| } |
| |
| void checkBorder () { |
| if (getBorderWidthInPixels () == 0) style &= ~SWT.BORDER; |
| } |
| |
| void checkMirrored () { |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) style |= SWT.MIRRORED; |
| } |
| |
| long /*int*/ childStyle () { |
| return parent.childStyle (); |
| } |
| |
| @Override |
| void createWidget (int index) { |
| state |= DRAG_DETECT; |
| checkOrientation (parent); |
| super.createWidget (index); |
| checkBackground (); |
| checkForeground (); |
| if ((state & PARENT_BACKGROUND) != 0) setParentBackground (); |
| checkBuffered (); |
| showWidget (); |
| setInitialBounds (); |
| setZOrder (null, false, false); |
| 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 /*int*/ h, int wHint, int hHint, boolean changed) { |
| int width = wHint, height = hHint; |
| if (OS.GTK3){ |
| if (wHint == SWT.DEFAULT && hHint == SWT.DEFAULT) { |
| GtkRequisition requisition = new GtkRequisition (); |
| OS.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) { |
| OS.gtk_widget_get_preferred_width_for_height (h, height, null, natural_size); |
| width = natural_size [0]; |
| } else { |
| OS.gtk_widget_get_preferred_height_for_width (h, width, null, natural_size); |
| height = natural_size [0]; |
| } |
| } |
| return new Point(width, height); |
| } |
| if (wHint == SWT.DEFAULT && hHint == SWT.DEFAULT) { |
| GtkRequisition requisition = new GtkRequisition (); |
| gtk_widget_size_request (h, requisition); |
| width = OS.GTK_WIDGET_REQUISITION_WIDTH (h); |
| height = OS.GTK_WIDGET_REQUISITION_HEIGHT (h); |
| } else if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) { |
| int [] reqWidth = new int [1], reqHeight = new int [1]; |
| OS.gtk_widget_get_size_request (h, reqWidth, reqHeight); |
| OS.gtk_widget_set_size_request (h, wHint, hHint); |
| GtkRequisition requisition = new GtkRequisition (); |
| gtk_widget_size_request (h, requisition); |
| OS.gtk_widget_set_size_request (h, reqWidth [0], reqHeight [0]); |
| width = wHint == SWT.DEFAULT ? requisition.width : wHint; |
| height = hHint == SWT.DEFAULT ? requisition.height : hHint; |
| } |
| 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 /*int*/ topHandle = topHandle (); |
| GtkRequisition requisition = new GtkRequisition (); |
| gtk_widget_size_request (topHandle, requisition); |
| GtkAllocation allocation = new GtkAllocation (); |
| OS.gtk_widget_get_allocation(topHandle, allocation); |
| OS.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 /*int*/ topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| OS.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 */ |
| } |
| |
| @Override |
| void modifyStyle (long /*int*/ handle, long /*int*/ style) { |
| super.modifyStyle(handle, style); |
| /* |
| * Bug in GTK. When changing the style of a control that |
| * has had a region set on it, the region is lost. The |
| * fix is to set the region again. |
| */ |
| if (region != null) OS.gdk_window_shape_combine_region (gtk_widget_get_window (topHandle ()), region.handle, 0, 0); |
| } |
| |
| void moveHandle (int x, int y) { |
| long /*int*/ topHandle = topHandle (); |
| long /*int*/ parentHandle = parent.parentingHandle (); |
| if (OS.GTK3) { |
| OS.swt_fixed_move (parentHandle, topHandle, x, y); |
| } else { |
| /* |
| * Feature in GTK. Calling gtk_fixed_move() to move a child causes |
| * the whole parent to redraw. This is a performance problem. The |
| * fix is temporarily mark the parent not visible during the move. |
| * |
| * NOTE: Because every widget in SWT has an X window, the new and |
| * old bounds of the child are correctly redrawn. |
| * |
| * NOTE: There is no API in GTK 3 to only set the GTK_VISIBLE bit. |
| */ |
| boolean reset = OS.gtk_widget_get_visible (parentHandle); |
| gtk_widget_set_visible (parentHandle, false); |
| OS.gtk_fixed_move (parentHandle, topHandle, x, y); |
| gtk_widget_set_visible (parentHandle, reset); |
| } |
| } |
| |
| void resizeHandle (int width, int height) { |
| long /*int*/ topHandle = topHandle (); |
| if (OS.GTK3) { |
| OS.swt_fixed_resize (OS.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 (OS.gtk_widget_get_parent (handle), handle, width, height); |
| } |
| } else { |
| OS.gtk_widget_set_size_request (topHandle, width, height); |
| if (topHandle != handle) OS.gtk_widget_set_size_request (handle, width, height); |
| } |
| } |
| |
| Point resizeCalculationsGTK3 (long /*int*/ 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. |
| */ |
| if (OS.GTK_VERSION >= OS.VERSION(3, 20, 0)) { |
| GtkRequisition requisition = new GtkRequisition(); |
| OS.gtk_widget_get_preferred_size(widget, requisition, null); |
| sizes.x = (width - (requisition.width - width)) < 0 ? requisition.width : width; |
| sizes.y = (height - (requisition.height - height)) < 0 ? requisition.height : 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 /*int*/ topHandle = topHandle (); |
| boolean sendMove = move; |
| GtkAllocation allocation = new GtkAllocation (); |
| OS.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 (enableWindow != 0) { |
| OS.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 (redrawWindow != 0) { |
| OS.gdk_window_resize (redrawWindow, newWidth, newHeight); |
| } |
| if (enableWindow != 0) { |
| OS.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_size_request (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 GTK 3.8 otherwise its allocation return 0 |
| * See org.eclipse.swt.tests.gtk.snippets.Bug497705_setBoundsAfterSetVisible |
| */ |
| if (OS.GTK_VERSION >= OS.VERSION (3, 8, 0) && !OS.gtk_widget_get_visible(topHandle)) { |
| OS.gtk_widget_show(topHandle); |
| gtk_widget_get_preferred_size (topHandle, requisition); |
| OS.gtk_widget_size_allocate (topHandle, allocation); |
| OS.gtk_widget_hide(topHandle); |
| } else { |
| OS.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 (enableWindow != 0) { |
| OS.gdk_window_hide (enableWindow); |
| } |
| OS.gtk_widget_hide (topHandle); |
| } else { |
| if ((state & HIDDEN) == 0) { |
| if (enableWindow != 0) { |
| OS.gdk_window_show_unraised (enableWindow); |
| } |
| OS.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 /*int*/ topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| OS.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 /*int*/ topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| OS.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 /*int*/ window = gtk_widget_get_window (topHandle ()); |
| long /*int*/ shape_region = (region == null) ? 0 : region.handle; |
| OS.gdk_window_shape_combine_region (window, shape_region, 0, 0); |
| this.region = region; |
| } |
| |
| void setRelations () { |
| long /*int*/ parentHandle = parent.parentingHandle (); |
| long /*int*/ list = OS.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 |
| */ |
| long /*int*/ handle = OS.g_list_nth_data (list, count - 2); |
| if (handle != 0) { |
| Widget widget = display.getWidget (handle); |
| if (widget != null && widget != this) { |
| if (widget instanceof Control) { |
| Control sibling = (Control)widget; |
| sibling.addRelation (this); |
| } |
| } |
| } |
| } |
| OS.g_list_free (list); |
| } |
| |
| /** |
| * 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; |
| } |
| |
| /* |
| * 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 /*int*/ 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 (); |
| long /*int*/ window = eventWindow (); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.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(); |
| long /*int*/ window = eventWindow (); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.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(); |
| long /*int*/ window = eventWindow (); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.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); |
| } |
| /** |
| * 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); |
| } |
| |
| 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 (OS.gtk_gesture_drag_get_start_point(dragGesture, startX, startY)) { |
| OS.gtk_gesture_drag_get_offset(dragGesture, offsetX, offsetY); |
| if (OS.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; |
| } |
| } 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; |
| if (OS.GTK3) { |
| startPos = display.getCursorLocationInPixels(); |
| } |
| |
| while (!quit) { |
| long /*int*/ 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 = OS.gdk_event_get (); |
| if (eventPtr != 0) { |
| break; |
| } else { |
| if (OS.GTK3) { //428852 |
| currPos = display.getCursorLocationInPixels(); |
| dragging = OS.gtk_drag_check_threshold (handle, |
| startPos.x, startPos.y, currPos.x, currPos.y); |
| if (dragging) break; |
| } else { |
| try {Thread.sleep(50);} |
| catch (Exception ex) {} |
| } |
| } |
| } |
| display.sendPostExternalEventDispatchEvent(); |
| if (dragging) return true; //428852 |
| if (eventPtr == 0) return dragOnTimeout; |
| switch (OS.GDK_EVENT_TYPE (eventPtr)) { |
| case OS.GDK_MOTION_NOTIFY: { |
| GdkEventMotion gdkMotionEvent = new GdkEventMotion (); |
| OS.memmove (gdkMotionEvent, eventPtr, GdkEventMotion.sizeof); |
| if ((gdkMotionEvent.state & OS.GDK_BUTTON1_MASK) != 0) { |
| if (OS.gtk_drag_check_threshold (handle, x, y, (int) gdkMotionEvent.x, (int) gdkMotionEvent.y)) { |
| dragging = true; |
| quit = true; |
| } |
| } else { |
| quit = true; |
| } |
| int [] newX = new int [1], newY = new int [1]; |
| gdk_window_get_device_position (gdkMotionEvent.window, newX, newY, null); |
| break; |
| } |
| case OS.GDK_KEY_PRESS: |
| case OS.GDK_KEY_RELEASE: { |
| GdkEventKey gdkEvent = new GdkEventKey (); |
| OS.memmove (gdkEvent, eventPtr, GdkEventKey.sizeof); |
| if (gdkEvent.keyval == OS.GDK_Escape) quit = true; |
| break; |
| } |
| case OS.GDK_BUTTON_RELEASE: |
| case OS.GDK_BUTTON_PRESS: |
| case OS.GDK_2BUTTON_PRESS: |
| case OS.GDK_3BUTTON_PRESS: { |
| OS.gdk_event_put (eventPtr); |
| quit = true; |
| break; |
| } |
| default: |
| OS.gtk_main_do_event (eventPtr); |
| } |
| OS.gdk_event_free (eventPtr); |
| } |
| } |
| return dragging; |
| } |
| |
| boolean filterKey (int keyval, long /*int*/ event) { |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) { |
| return OS.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); |
| } |
| |
| @Override |
| long /*int*/ fixedMapProc (long /*int*/ widget) { |
| OS.gtk_widget_set_mapped (widget, true); |
| long /*int*/ widgetList = OS.gtk_container_get_children (widget); |
| if (widgetList != 0) { |
| long /*int*/ widgets = widgetList; |
| while (widgets != 0) { |
| long /*int*/ child = OS.g_list_data (widgets); |
| if (OS.gtk_widget_get_visible (child) && OS.gtk_widget_get_child_visible (child) && !OS.gtk_widget_get_mapped (child)) { |
| OS.gtk_widget_map (child); |
| } |
| widgets = OS.g_list_next (widgets); |
| } |
| OS.g_list_free (widgetList); |
| } |
| if (OS.gtk_widget_get_has_window (widget)) { |
| OS.gdk_window_show_unraised (gtk_widget_get_window (widget)); |
| } |
| return 0; |
| } |
| |
| void fixModal(long /*int*/ group, long /*int*/ 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 /*int*/ focusHandle) { |
| if (OS.gtk_widget_has_focus (focusHandle)) return true; |
| /* When the control is zero sized it must be realized */ |
| OS.gtk_widget_realize (focusHandle); |
| OS.gtk_widget_grab_focus (focusHandle); |
| // widget could be disposed at this point |
| if (isDisposed ()) return false; |
| Shell shell = getShell (); |
| long /*int*/ shellHandle = shell.shellHandle; |
| long /*int*/ handle = OS.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 = OS.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 (OS.GTK3) { |
| color = Color.gtk_new (display, this.getBackgroundGdkRGBA (), backgroundAlpha); |
| return color; |
| } else { |
| if (backgroundAlpha == 0) { |
| color = Color.gtk_new (display, this.getBackgroundGdkColor (), 0); |
| return color; |
| } |
| else { |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| return Color.gtk_new (display, control.getBackgroundGdkColor (), backgroundAlpha); |
| } |
| } |
| } |
| |
| GdkRGBA getBackgroundGdkRGBA () { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| return getBgGdkRGBA (); |
| } |
| |
| GdkColor getBackgroundGdkColor () { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| return getBgGdkColor (); |
| } |
| |
| /** |
| * 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 () { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| long /*int*/ fontHandle = fontHandle (); |
| if (OS.GTK_VERSION >= OS.VERSION(3, 14, 0)) { |
| if (provider != 0) { |
| return display.gtk_css_parse_background (provider, null); |
| } else { |
| return display.COLOR_WIDGET_BACKGROUND_RGBA; |
| } |
| } else { |
| long /*int*/ context = OS.gtk_widget_get_style_context (fontHandle); |
| GdkRGBA rgba = new GdkRGBA (); |
| OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba); |
| if ((state & BACKGROUND) == 0) { |
| return display.COLOR_WIDGET_BACKGROUND_RGBA; |
| } |
| return rgba; |
| } |
| } |
| |
| GdkRGBA getContextColorGdkRGBA () { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| long /*int*/ fontHandle = fontHandle (); |
| if (OS.GTK_VERSION >= OS.VERSION(3, 14, 0)) { |
| return display.gtk_css_parse_foreground(provider, null); |
| } else { |
| long /*int*/ context = OS.gtk_widget_get_style_context (fontHandle); |
| GdkRGBA rgba = display.styleContextGetColor (context, OS.GTK_STATE_FLAG_NORMAL); |
| return rgba; |
| } |
| } |
| |
| GdkRGBA getBgGdkRGBA () { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| return getContextBackgroundGdkRGBA (); |
| } |
| |
| GdkColor getBgGdkColor () { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| long /*int*/ fontHandle = fontHandle (); |
| OS.gtk_widget_realize (fontHandle); |
| GdkColor color = new GdkColor (); |
| |
| long /*int*/ style = OS.gtk_widget_get_style (fontHandle); |
| if (style != 0){ |
| OS.gtk_style_get_bg (style, OS.GTK_STATE_NORMAL, color); |
| } |
| |
| return color; |
| } |
| |
| GdkRGBA getBaseGdkRGBA () { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| return getContextBackgroundGdkRGBA (); |
| } |
| |
| GdkColor getBaseGdkColor () { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| long /*int*/ fontHandle = fontHandle (); |
| OS.gtk_widget_realize (fontHandle); |
| GdkColor color = new GdkColor (); |
| OS.gtk_style_get_base (OS.gtk_widget_get_style (fontHandle), OS.GTK_STATE_NORMAL, color); |
| return color; |
| } |
| |
| /** |
| * 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(); |
| OS.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 (); |
| } |
| |
| long /*int*/ getFontDescription () { |
| long /*int*/ fontHandle = fontHandle (); |
| long /*int*/ [] fontDesc = new long /*int*/ [1]; |
| if (OS.GTK3) { |
| long /*int*/ context = OS.gtk_widget_get_style_context (fontHandle); |
| if (OS.GTK_VERSION < OS.VERSION(3, 8, 0)) { |
| return OS.gtk_style_context_get_font(context, OS.GTK_STATE_FLAG_NORMAL); |
| } else if (OS.GTK_VERSION >= OS.VERSION(3, 18, 0)) { |
| OS.gtk_style_context_save(context); |
| OS.gtk_style_context_set_state(context, OS.GTK_STATE_FLAG_NORMAL); |
| OS.gtk_style_context_get(context, OS.GTK_STATE_FLAG_NORMAL, OS.gtk_style_property_font, fontDesc, 0); |
| OS.gtk_style_context_restore(context); |
| return fontDesc [0]; |
| } else { |
| OS.gtk_style_context_get(context, OS.GTK_STATE_FLAG_NORMAL, OS.gtk_style_property_font, fontDesc, 0); |
| return fontDesc [0]; |
| } |
| } |
| OS.gtk_widget_realize (fontHandle); |
| return OS.gtk_style_get_font_desc (OS.gtk_widget_get_style (fontHandle)); |
| } |
| |
| /** |
| * 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 = OS.GTK3? Color.gtk_new (display, getForegroundGdkRGBA ()) : Color.gtk_new (display, getForegroundGdkColor ()); |
| return color; |
| } |
| |
| GdkRGBA getForegroundGdkRGBA () { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| return getContextColorGdkRGBA(); |
| } |
| |
| GdkColor getForegroundGdkColor () { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| return getFgColor (); |
| } |
| |
| GdkColor getFgColor () { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| long /*int*/ fontHandle = fontHandle (); |
| OS.gtk_widget_realize (fontHandle); |
| GdkColor color = new GdkColor (); |
| |
| long /*int*/ style = OS.gtk_widget_get_style (fontHandle); |
| if (style != 0){ |
| OS.gtk_style_get_fg (style, OS.GTK_STATE_NORMAL, color); |
| } |
| return color; |
| } |
| |
| Point getIMCaretPos () { |
| return new Point (0, 0); |
| } |
| |
| GdkColor getTextColor () { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| long /*int*/ fontHandle = fontHandle (); |
| OS.gtk_widget_realize (fontHandle); |
| GdkColor color = new GdkColor (); |
| OS.gtk_style_get_text (OS.gtk_widget_get_style (fontHandle), OS.GTK_STATE_NORMAL, color); |
| return color; |
| } |
| |
| /** |
| * 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 (); |
| long /*int*/ screen = OS.gdk_screen_get_default (); |
| if (screen != 0) { |
| int monitorNumber = OS.gdk_screen_get_monitor_at_window (screen, paintWindow ()); |
| Monitor[] monitors = display.getMonitors (); |
| |
| 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 /*int*/ widget) { |
| if (OS.GTK3) { |
| int xthickness = 0, ythickness = 0; |
| GtkBorder tmp = new GtkBorder(); |
| long /*int*/ context = OS.gtk_widget_get_style_context (widget); |
| |
| if (OS.GTK_VERSION < OS.VERSION(3, 18, 0)) { |
| OS.gtk_style_context_get_padding (context, OS.GTK_STATE_FLAG_NORMAL, tmp); |
| } else { |
| OS.gtk_style_context_get_padding (context, OS.gtk_widget_get_state_flags(widget), tmp); |
| } |
| OS.gtk_style_context_save (context); |
| OS.gtk_style_context_add_class (context, OS.GTK_STYLE_CLASS_FRAME); |
| xthickness += tmp.left; |
| ythickness += tmp.top; |
| if (OS.GTK_VERSION < OS.VERSION(3, 18, 0)) { |
| OS.gtk_style_context_get_border (context, OS.GTK_STATE_FLAG_NORMAL, tmp); |
| } else { |
| OS.gtk_style_context_get_border (context, OS.gtk_widget_get_state_flags(widget), tmp); |
| } |
| xthickness += tmp.left; |
| ythickness += tmp.top; |
| OS.gtk_style_context_restore (context); |
| return new Point (xthickness, ythickness); |
| } |
| long /*int*/ style = OS.gtk_widget_get_style (widget); |
| return new Point (OS.gtk_style_get_xthickness (style), OS.gtk_style_get_ythickness (style)); |
| } |
| |
| @Override |
| long /*int*/ gtk_button_press_event (long /*int*/ widget, long /*int*/ event) { |
| return gtk_button_press_event (widget, event, true); |
| } |
| |
| long /*int*/ gtk_button_press_event (long /*int*/ widget, long /*int*/ event, boolean sendMouseDown) { |
| GdkEventButton gdkEvent = new GdkEventButton (); |
| OS.memmove (gdkEvent, event, GdkEventButton.sizeof); |
| if (gdkEvent.type == OS.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 /*int*/ result = 0; |
| if (gdkEvent.type == OS.GDK_BUTTON_PRESS) { |
| boolean dragging = false; |
| display.clickCount = 1; |
| long /*int*/ nextEvent = OS.gdk_event_peek (); |
| if (nextEvent != 0) { |
| int eventType = OS.GDK_EVENT_TYPE (nextEvent); |
| if (eventType == OS.GDK_2BUTTON_PRESS) display.clickCount = 2; |
| if (eventType == OS.GDK_3BUTTON_PRESS) display.clickCount = 3; |
| OS.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 (gdkEvent.button == 1) { |
| boolean [] consume = new boolean [1]; |
| if (dragDetect ((int) gdkEvent.x, (int) gdkEvent.y, true, true, consume)) { |
| dragging = true; |
| if (consume [0]) result = 1; |
| } |
| if (isDisposed ()) return 1; |
| } |
| } |
| } |
| if (sendMouseDown && !sendMouseEvent (SWT.MouseDown, gdkEvent.button, display.clickCount, 0, false, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state)) { |
| 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) { |
| sendDragEvent (gdkEvent.button, gdkEvent.state, (int) gdkEvent.x, (int) gdkEvent.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 (gdkEvent.button == 3) { |
| if (showMenu ((int)gdkEvent.x_root, (int)gdkEvent.y_root)) { |
| result = 1; |
| } |
| } |
| } |
| } else { |
| display.clickCount = 2; |
| result = sendMouseEvent (SWT.MouseDoubleClick, gdkEvent.button, display.clickCount, 0, false, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| if (isDisposed ()) return 1; |
| } |
| if (!shell.isDisposed ()) shell.setActiveControl (this, SWT.MouseDown); |
| return result; |
| } |
| |
| @Override |
| long /*int*/ gtk_button_release_event (long /*int*/ widget, long /*int*/ event) { |
| GdkEventButton gdkEvent = new GdkEventButton (); |
| OS.memmove (gdkEvent, event, GdkEventButton.sizeof); |
| return sendMouseEvent (SWT.MouseUp, gdkEvent.button, display.clickCount, 0, false, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| } |
| |
| @Override |
| long /*int*/ gtk_commit (long /*int*/ imcontext, long /*int*/ text) { |
| if (text == 0) return 0; |
| int length = OS.strlen (text); |
| if (length == 0) return 0; |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, text, length); |
| char [] chars = Converter.mbcsToWcs (buffer); |
| sendIMKeyEvent (SWT.KeyDown, null, chars); |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_enter_notify_event (long /*int*/ widget, long /*int*/ event) { |
| /* |
| * 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); |
| buffer = Converter.wcsToMbcs (chars, true); |
| } |
| long /*int*/ toolHandle = getShell().handle; |
| OS.gtk_widget_set_tooltip_text (toolHandle, buffer); |
| |
| if (display.currentControl == this) return 0; |
| GdkEventCrossing gdkEvent = new GdkEventCrossing (); |
| OS.memmove (gdkEvent, event, GdkEventCrossing.sizeof); |
| /* |
| * 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 (gdkEvent.subwindow != 0 && checkSubwindow ()) return 0; |
| if (gdkEvent.mode != OS.GDK_CROSSING_NORMAL && gdkEvent.mode != OS.GDK_CROSSING_UNGRAB) return 0; |
| if ((gdkEvent.state & (OS.GDK_BUTTON1_MASK | OS.GDK_BUTTON2_MASK | OS.GDK_BUTTON3_MASK)) != 0) return 0; |
| if (display.currentControl != null && !display.currentControl.isDisposed ()) { |
| display.removeMouseHoverTimeout (display.currentControl.handle); |
| display.currentControl.sendMouseEvent (SWT.MouseExit, 0, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state); |
| } |
| if (!isDisposed ()) { |
| display.currentControl = this; |
| return sendMouseEvent (SWT.MouseEnter, 0, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| } |
| return 0; |
| } |
| |
| boolean checkSubwindow () { |
| return false; |
| } |
| |
| @Override |
| long /*int*/ gtk_event_after (long /*int*/ widget, long /*int*/ gdkEvent) { |
| GdkEvent event = new GdkEvent (); |
| OS.memmove (event, gdkEvent, GdkEvent.sizeof); |
| switch (event.type) { |
| case OS.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) { |
| GdkEventButton gdkEventButton = new GdkEventButton (); |
| OS.memmove (gdkEventButton, gdkEvent, GdkEventButton.sizeof); |
| if (gdkEventButton.button == 3) { |
| showMenu ((int) gdkEventButton.x_root, (int) gdkEventButton.y_root); |
| } |
| } |
| break; |
| } |
| case OS.GDK_FOCUS_CHANGE: { |
| if (!isFocusHandle (widget)) break; |
| GdkEventFocus gdkEventFocus = new GdkEventFocus (); |
| OS.memmove (gdkEventFocus, gdkEvent, GdkEventFocus.sizeof); |
| |
| /* |
| * 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 (gdkEventFocus.in != 0) { |
| if (display.ignoreFocus) { |
| display.ignoreFocus = false; |
| break; |
| } |
| } else { |
| display.ignoreFocus = false; |
| long /*int*/ grabHandle = OS.gtk_grab_get_current (); |
| if (grabHandle != 0) { |
| if (OS.G_OBJECT_TYPE (grabHandle) == OS.GTK_TYPE_MENU ()) { |
| display.ignoreFocus = true; |
| break; |
| } |
| } |
| } |
| |
| sendFocusEvent (gdkEventFocus.in != 0 ? SWT.FocusIn : SWT.FocusOut); |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_draw (long /*int*/ widget, long /*int*/ cairo) { |
| if ((state & OBSCURED) != 0) return 0; |
| if (!hooksPaint ()) return 0; |
| GdkRectangle rect = new GdkRectangle (); |
| OS.gdk_cairo_get_clip_rectangle (cairo, rect); |
| Event event = new Event (); |
| event.count = 1; |
| Rectangle eventRect = new Rectangle (rect.x, rect.y, rect.width, rect.height); |
| event.setBounds (DPIUtil.autoScaleDown (eventRect)); |
| if ((style & SWT.MIRRORED) != 0) event.x = DPIUtil.autoScaleDown (getClientWidth ()) - event.width - event.x; |
| GCData data = new GCData (); |
| // data.damageRgn = gdkEvent.region; |
| if (OS.GTK_VERSION <= OS.VERSION (3, 9, 0)) { |
| data.cairo = cairo; |
| } |
| GC gc = event.gc = GC.gtk_new (this, data); |
| Rectangle rect2 = DPIUtil.autoScaleDown(new Rectangle(rect.x, rect.y, rect.width, rect.height)); |
| // Caveat: rect2 is necessary because GC#setClipping(Rectangle) got broken by bug 446075 |
| gc.setClipping (rect2.x, rect2.y, rect2.width, rect2.height); |
| drawWidget (gc); |
| sendEvent (SWT.Paint, event); |
| gc.dispose (); |
| event.gc = null; |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_expose_event (long /*int*/ widget, long /*int*/ eventPtr) { |
| if ((state & OBSCURED) != 0) return 0; |
| if (!hooksPaint ()) return 0; |
| GdkEventExpose gdkEvent = new GdkEventExpose (); |
| OS.memmove(gdkEvent, eventPtr, GdkEventExpose.sizeof); |
| Event event = new Event (); |
| event.count = gdkEvent.count; |
| Rectangle eventRect = new Rectangle (gdkEvent.area_x, gdkEvent.area_y, gdkEvent.area_width, gdkEvent.area_height); |
| event.setBounds (DPIUtil.autoScaleDown (eventRect)); |
| if ((style & SWT.MIRRORED) != 0) event.x = DPIUtil.autoScaleDown (getClientWidth ()) - event.width - event.x; |
| GCData data = new GCData (); |
| data.damageRgn = gdkEvent.region; |
| GC gc = event.gc = GC.gtk_new (this, data); |
| drawWidget (gc); |
| sendEvent (SWT.Paint, event); |
| gc.dispose (); |
| event.gc = null; |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_focus (long /*int*/ widget, long /*int*/ directionType) { |
| /* Stop GTK traversal for every widget */ |
| return 1; |
| } |
| |
| @Override |
| long /*int*/ gtk_focus_in_event (long /*int*/ widget, long /*int*/ event) { |
| // widget could be disposed at this point |
| if (handle != 0) { |
| Control oldControl = display.imControl; |
| if (oldControl != this) { |
| if (oldControl != null && !oldControl.isDisposed ()) { |
| long /*int*/ oldIMHandle = oldControl.imHandle (); |
| if (oldIMHandle != 0) OS.gtk_im_context_reset (oldIMHandle); |
| } |
| } |
| if (hooks (SWT.KeyDown) || hooks (SWT.KeyUp)) { |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) OS.gtk_im_context_focus_in (imHandle); |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_focus_out_event (long /*int*/ widget, long /*int*/ event) { |
| // widget could be disposed at this point |
| if (handle != 0) { |
| if (hooks (SWT.KeyDown) || hooks (SWT.KeyUp)) { |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) { |
| OS.gtk_im_context_focus_out (imHandle); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_key_press_event (long /*int*/ widget, long /*int*/ event) { |
| 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) { |
| GdkEventKey gdkEvent = new GdkEventKey (); |
| OS.memmove (gdkEvent, event, GdkEventKey.sizeof); |
| if (filterKey (gdkEvent.keyval, event)) return 1; |
| } |
| return 0; |
| } |
| GdkEventKey gdkEvent = new GdkEventKey (); |
| OS.memmove (gdkEvent, event, GdkEventKey.sizeof); |
| |
| if (translateMnemonic (gdkEvent.keyval, gdkEvent)) return 1; |
| // widget could be disposed at this point |
| if (isDisposed ()) return 0; |
| |
| if (filterKey (gdkEvent.keyval, event)) return 1; |
| // widget could be disposed at this point |
| if (isDisposed ()) return 0; |
| |
| if (translateTraversal (gdkEvent)) return 1; |
| // widget could be disposed at this point |
| if (isDisposed ()) return 0; |
| return super.gtk_key_press_event (widget, event); |
| } |
| |
| @Override |
| long /*int*/ gtk_key_release_event (long /*int*/ widget, long /*int*/ event) { |
| if (!hasFocus ()) return 0; |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) { |
| if (OS.gtk_im_context_filter_keypress (imHandle, event)) return 1; |
| } |
| return super.gtk_key_release_event (widget, event); |
| } |
| |
| @Override |
| long /*int*/ gtk_leave_notify_event (long /*int*/ widget, long /*int*/ event) { |
| if (display.currentControl != this) return 0; |
| display.removeMouseHoverTimeout (handle); |
| int result = 0; |
| if (sendLeaveNotify () || display.getCursorControl () == null) { |
| GdkEventCrossing gdkEvent = new GdkEventCrossing (); |
| OS.memmove (gdkEvent, event, GdkEventCrossing.sizeof); |
| if (gdkEvent.mode != OS.GDK_CROSSING_NORMAL && gdkEvent.mode != OS.GDK_CROSSING_UNGRAB) return 0; |
| if ((gdkEvent.state & (OS.GDK_BUTTON1_MASK | OS.GDK_BUTTON2_MASK | OS.GDK_BUTTON3_MASK)) != 0) return 0; |
| result = sendMouseEvent (SWT.MouseExit, 0, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| display.currentControl = null; |
| } |
| return result; |
| } |
| |
| @Override |
| long /*int*/ gtk_mnemonic_activate (long /*int*/ widget, long /*int*/ arg1) { |
| int result = 0; |
| long /*int*/ eventPtr = OS.gtk_get_current_event (); |
| if (eventPtr != 0) { |
| GdkEventKey keyEvent = new GdkEventKey (); |
| OS.memmove (keyEvent, eventPtr, GdkEventKey.sizeof); |
| if (keyEvent.type == OS.GDK_KEY_PRESS) { |
| Control focusControl = display.getFocusControl (); |
| long /*int*/ focusHandle = focusControl != null ? focusControl.focusHandle () : 0; |
| if (focusHandle != 0) { |
| display.mnemonicControl = this; |
| OS.gtk_widget_event (focusHandle, eventPtr); |
| display.mnemonicControl = null; |
| } |
| result = 1; |
| } |
| OS.gdk_event_free (eventPtr); |
| } |
| return result; |
| } |
| |
| @Override |
| long /*int*/ gtk_motion_notify_event (long /*int*/ widget, long /*int*/ event) { |
| int result; |
| GdkEventMotion gdkEvent = new GdkEventMotion (); |
| OS.memmove (gdkEvent, event, GdkEventMotion.sizeof); |
| /* |
| * 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) gdkEvent.x, (int) gdkEvent.y, true, true, consume)) { |
| dragging = true; |
| if (consume [0]) result = 1; |
| if (isDisposed ()) return 1; |
| } else { |
| } |
| } |
| if (dragging) { |
| OS.gtk_event_controller_handle_event(dragGesture,event); |
| GdkEventButton gdkEvent1 = new GdkEventButton (); |
| OS.memmove (gdkEvent1, event, GdkEventButton.sizeof); |
| if (gdkEvent1.type == OS.GDK_3BUTTON_PRESS) return 0; |
| if (sendDragEvent (gdkEvent1.button, gdkEvent1.state, (int) gdkEvent1.x, (int) gdkEvent1.y, false)){ |
| return 1; |
| } |
| } |
| } |
| if (this == display.currentControl && (hooks (SWT.MouseHover) || filters (SWT.MouseHover))) { |
| display.addMouseHoverTimeout (handle); |
| } |
| double x = gdkEvent.x_root, y = gdkEvent.y_root; |
| int state = gdkEvent.state; |
| if (gdkEvent.is_hint != 0) { |
| int [] pointer_x = new int [1], pointer_y = new int [1], mask = new int [1]; |
| long /*int*/ window = eventWindow (); |
| gdk_window_get_device_position (window, pointer_x, pointer_y, mask); |
| x = pointer_x [0]; |
| y = pointer_y [0]; |
| state = mask [0]; |
| } |
| if (OS.GTK3 && 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, gdkEvent.time, pt.x, pt.y, gdkEvent.is_hint != 0, state); |
| } |
| if (!isDisposed ()) { |
| display.currentControl = this; |
| sendMouseEvent (SWT.MouseEnter, 0, gdkEvent.time, x, y, gdkEvent.is_hint != 0, state); |
| } |
| } |
| result = sendMouseEvent (SWT.MouseMove, 0, gdkEvent.time, x, y, gdkEvent.is_hint != 0, state) ? 0 : 1; |
| return result; |
| } |
| |
| @Override |
| long /*int*/ gtk_popup_menu (long /*int*/ widget) { |
| if (!hasFocus()) return 0; |
| int [] x = new int [1], y = new int [1]; |
| gdk_window_get_device_position (0, x, y, null); |
| return showMenu (x [0], y [0], SWT.MENU_KEYBOARD) ? 1 : 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_preedit_changed (long /*int*/ imcontext) { |
| display.showIMWindow (this); |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_realize (long /*int*/ widget) { |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) { |
| long /*int*/ window = gtk_widget_get_window (paintHandle ()); |
| OS.gtk_im_context_set_client_window (imHandle, window); |
| } |
| if (backgroundImage != null) { |
| setBackgroundPixmap (backgroundImage); |
| } |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_scroll_event (long /*int*/ widget, long /*int*/ eventPtr) { |
| GdkEventScroll gdkEvent = new GdkEventScroll (); |
| OS.memmove (gdkEvent, eventPtr, GdkEventScroll.sizeof); |
| switch (gdkEvent.direction) { |
| case OS.GDK_SCROLL_UP: |
| return sendMouseEvent (SWT.MouseWheel, 0, 3, SWT.SCROLL_LINE, true, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| case OS.GDK_SCROLL_DOWN: |
| return sendMouseEvent (SWT.MouseWheel, 0, -3, SWT.SCROLL_LINE, true, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| case OS.GDK_SCROLL_LEFT: |
| return sendMouseEvent (SWT.MouseHorizontalWheel, 0, 3, 0, true, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| case OS.GDK_SCROLL_RIGHT: |
| return sendMouseEvent (SWT.MouseHorizontalWheel, 0, -3, 0, true, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1; |
| case OS.GDK_SCROLL_SMOOTH: |
| long /*int*/ result = 0; |
| double[] delta_x = new double[1], delta_y = new double [1]; |
| if (OS.gdk_event_get_scroll_deltas (eventPtr, delta_x, delta_y)) { |
| if (delta_x [0] != 0) { |
| result = (sendMouseEvent (SWT.MouseHorizontalWheel, 0, (int)(-3 * delta_x [0]), 0, true, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1); |
| } |
| if (delta_y [0] != 0) { |
| result = (sendMouseEvent (SWT.MouseWheel, 0, (int)(-3 * delta_y [0]), SWT.SCROLL_LINE, true, gdkEvent.time, gdkEvent.x_root, gdkEvent.y_root, false, gdkEvent.state) ? 0 : 1); |
| } |
| } |
| return result; |
| } |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_show_help (long /*int*/ widget, long /*int*/ helpType) { |
| if (!hasFocus ()) return 0; |
| return sendHelpEvent (helpType) ? 1 : 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_style_set (long /*int*/ widget, long /*int*/ previousStyle) { |
| if (backgroundImage != null) { |
| setBackgroundPixmap (backgroundImage); |
| } |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_unrealize (long /*int*/ widget) { |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) OS.gtk_im_context_set_client_window (imHandle, 0); |
| return 0; |
| } |
| |
| void gtk_widget_size_request (long /*int*/ widget, GtkRequisition requisition) { |
| gtk_widget_get_preferred_size (widget, requisition); |
| } |
| |
| /** |
| * 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 /*int*/ internal_new_GC (GCData data) { |
| checkWidget (); |
| long /*int*/ window = paintWindow (); |
| if (window == 0) error (SWT.ERROR_NO_HANDLES); |
| long /*int*/ gc = data.cairo; |
| if (gc != 0) { |
| Cairo.cairo_reference (gc); |
| } else { |
| gc = OS.gdk_cairo_create (window); |
| } |
| 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 = window; |
| data.device = display; |
| |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| data.font = font != null ? font : defaultFont (); |
| if (OS.GTK3) { |
| data.foregroundRGBA = getForegroundGdkRGBA (); |
| data.backgroundRGBA = control.getBackgroundGdkRGBA (); |
| } else { |
| data.foreground = getForegroundGdkColor (); |
| data.background = control.getBackgroundGdkColor (); |
| } |
| } |
| return gc; |
| } |
| |
| long /*int*/ 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 /*int*/ 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, null); |
| 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, null); |
| 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 /*int*/ 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 (!OS.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 (!OS.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 (!OS.gtk_widget_get_realized(handle)) return; |
| long /*int*/ window = paintWindow (); |
| GdkRectangle rect = new GdkRectangle (); |
| 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); |
| } |
| OS.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; |
| } |
| |
| @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); |
| long /*int*/ imHandle = imHandle (); |
| if (imHandle != 0) { |
| OS.gtk_im_context_reset (imHandle); |
| OS.gtk_im_context_set_client_window (imHandle, 0); |
| } |
| if (enableWindow != 0) { |
| OS.gdk_window_set_user_data (enableWindow, 0); |
| OS.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; |
| } |
| |
| void restackWindow (long /*int*/ window, long /*int*/ sibling, boolean above) { |
| OS.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) { |
| 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 (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) { |
| 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 /*int*/ 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) { |
| 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 (!hooks (type) && !filters (type)) 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 { |
| long /*int*/ window = eventWindow (); |
| int [] origin_x = new int [1], origin_y = new int [1]; |
| OS.gdk_window_get_origin (window, origin_x, origin_y); |
| Rectangle 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 = new Boolean(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 = new Boolean(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. |
| |
| // 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 = new Boolean(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 /*int*/ widget, int hAlign, int vAlign) { |
| OS.gtk_widget_set_halign (widget, hAlign); |
| OS.gtk_widget_set_valign (widget, vAlign); |
| } |
| |
| void gtk_label_set_align(long /*int*/ label, float xAlign, float yAlign) { |
| OS.gtk_label_set_xalign(label, xAlign); |
| OS.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. |
| * For example, on MAC the background of a Button cannot be changed. |
| * </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; |
| boolean set = false; |
| if (OS.GTK3) { |
| GdkRGBA rgba = null; |
| if (color != null) { |
| rgba = color.handleRGBA; |
| } |
| set = true; |
| if (set) { |
| if (color == null) { |
| state &= ~BACKGROUND; |
| } else { |
| state |= BACKGROUND; |
| } |
| setBackgroundGdkRGBA (rgba); |
| } |
| } else { |
| GdkColor gdkColor = null; |
| if (color != null) { |
| if (color.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| gdkColor = color.handle; |
| backgroundAlpha = color.getAlpha (); |
| } |
| if (gdkColor == null) { |
| long /*int*/ style = OS.gtk_widget_get_modifier_style (handle); |
| set = (OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_NORMAL) & OS.GTK_RC_BG) != 0; |
| } else { |
| GdkColor oldColor = getBackgroundGdkColor (); |
| set = oldColor.pixel != gdkColor.pixel; |
| } |
| if (set) { |
| |
| if (color == null) { |
| state &= ~BACKGROUND; |
| } else { |
| state |= BACKGROUND; |
| } |
| setBackgroundGdkColor (gdkColor); |
| } |
| } |
| redrawChildren (); |
| } |
| |
| void setBackgroundGdkRGBA (long /*int*/ context, long /*int*/ handle, GdkRGBA rgba) { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| GdkRGBA selectedBackground = display.getSystemColor(SWT.COLOR_LIST_SELECTION).handleRGBA; |
| if (OS.GTK_VERSION >= OS.VERSION(3, 14, 0)) { |
| // Form background string |
| String name = OS.GTK_VERSION >= OS.VERSION(3, 20, 0) ? display.gtk_widget_class_get_css_name(handle) |
| : display.gtk_widget_get_name(handle); |
| String selection = OS.GTK_VERSION >= OS.VERSION(3, 20, 0) ? " selection" : ":selected"; |
| String css = name + " {background-color: " + display.gtk_rgba_to_css_string(rgba) + ";}\n" |
| + name + selection + " {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); |
| } else { |
| OS.gtk_widget_override_background_color (handle, OS.GTK_STATE_FLAG_NORMAL, rgba); |
| OS.gtk_widget_override_background_color(handle, OS.GTK_STATE_FLAG_SELECTED, selectedBackground); |
| } |
| } |
| |
| void setBackgroundGradientGdkRGBA (long /*int*/ context, long /*int*/ handle, GdkRGBA rgba) { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| String css ="* {\n"; |
| if (rgba != null) { |
| String color = display.gtk_rgba_to_css_string (rgba); |
| //Note, use 'background-image' CSS class with caution. Not all themes/widgets support it. (e.g button doesn't). |
| //Use 'background' CSS class where possible instead unless 'background-image' is explicidly supported. |
| css += "background-image: -gtk-gradient (linear, 0 0, 0 1, color-stop(0, " + color + "), color-stop(1, " + color + "));\n"; |
| } |
| css += "}\n"; |
| //Cache background color |
| 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 /*int*/ context, String css) { |
| /* Utility function. */ |
| //@param css : a 'css java' string like "{\nbackground: red;\n}". |
| |
| if (provider == 0) { |
| provider = OS.gtk_css_provider_new (); |
| OS.gtk_style_context_add_provider (context, provider, OS.GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); |
| OS.g_object_unref (provider); |
| } |
| OS.gtk_css_provider_load_from_data (provider, Converter.wcsToMbcs (css, true), -1, null); |
| } |
| |
| void setBackgroundGdkColor (long /*int*/ handle, GdkColor color) { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| int index = OS.GTK_STATE_NORMAL; |
| long /*int*/ style = OS.gtk_widget_get_modifier_style (handle); |
| long /*int*/ ptr = OS.gtk_rc_style_get_bg_pixmap_name (style, index); |
| if (ptr != 0) OS.g_free (ptr); |
| ptr = 0; |
| |
| String pixmapName = null; |
| int flags = OS.gtk_rc_style_get_color_flags (style, index); |
| if (color != null) { |
| flags |= OS.GTK_RC_BG; |
| pixmapName = "<none>"; //$NON-NLS-1$ |
| } else { |
| flags &= ~OS.GTK_RC_BG; |
| if (backgroundImage == null && (state & PARENT_BACKGROUND) != 0) { |
| pixmapName = "<parent>"; //$NON-NLS-1$ |
| } |
| } |
| if (pixmapName != null) { |
| byte[] buffer = Converter.wcsToMbcs (pixmapName, true); |
| ptr = OS.g_malloc (buffer.length); |
| OS.memmove (ptr, buffer, buffer.length); |
| } |
| |
| OS.gtk_rc_style_set_bg_pixmap_name (style, index, ptr); |
| OS.gtk_rc_style_set_bg (style, index, color); |
| OS.gtk_rc_style_set_color_flags (style, index, flags); |
| modifyStyle (handle, style); |
| } |
| |
| void setBackgroundGdkColor (GdkColor color) { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| setBackgroundGdkColor (handle, color); |
| } |
| |
| void setBackgroundGdkRGBA(GdkRGBA rgba) { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| setBackgroundGdkRGBA (handle, rgba); |
| } |
| |
| void setBackgroundGdkRGBA (long /*int*/ handle, GdkRGBA rgba) { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| backgroundAlpha = 255; |
| if (rgba == null) { |
| if ((state & PARENT_BACKGROUND) != 0) { |
| backgroundAlpha = 0; |
| Control control = findBackgroundControl(); |
| if (control == null) control = this; |
| rgba = control == this ? null : control.getBackgroundGdkRGBA(); |
| } else { |
| rgba = defaultBackground (); |
| } |
| } else { |
| backgroundAlpha = (int) (rgba.alpha * 255); |
| } |
| if (rgba != null) rgba.alpha = (float) backgroundAlpha / 255; |
| long /*int*/ context = OS.gtk_widget_get_style_context (handle); |
| setBackgroundGdkRGBA (context, handle, rgba); |
| OS.gtk_style_context_invalidate (context); |
| return; |
| } |
| /** |
| * 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) { |
| setBackgroundPixmap (backgroundImage); |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } else { |
| setWidgetBackground (); |
| } |
| redrawChildren (); |
| } |
| |
| void setBackgroundPixmap (Image image) { |
| long /*int*/ window = gtk_widget_get_window (paintHandle ()); |
| if (window != 0) { |
| if (image.pixmap != 0) { |
| OS.gdk_window_set_back_pixmap (window, image.pixmap, false); |
| } else if (image.surface != 0) { |
| if (OS.GTK3) { |
| long /*int*/ 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); |
| OS.gdk_window_set_background_pattern(window, pattern); |
| Cairo.cairo_pattern_destroy(pattern); |
| } |
| /* |
| * TODO This code code is commented because it does not work since the pixmap |
| * created with gdk_pixmap_foreign_new() does not have colormap. Another option |
| * would be to create a pixmap on the fly from the surface. |
| * |
| * For now draw background in windowProc(). |
| */ |
| // long /*int*/ surface = image.surface; |
| // int type = Cairo.cairo_surface_get_type(surface); |
| // switch (type) { |
| // case Cairo.CAIRO_SURFACE_TYPE_XLIB: |
| // long /*int*/ pixmap = OS.gdk_pixmap_foreign_new(Cairo.cairo_xlib_surface_get_drawable(surface)); |
| // OS.gdk_window_set_back_pixmap (window, pixmap, false); |
| // OS.g_object_unref(pixmap); |
| // break; |
| // } |
| } |
| } |
| } |
| |
| /** |
| * 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 /*int*/ cursor) { |
| long /*int*/ window = eventWindow (); |
| if (window != 0) { |
| OS.gdk_window_set_cursor (window, cursor); |
| if (!OS.isX11()) { // Wayland |
| OS.gdk_flush (); |
| } else { |
| long /*int*/ xDisplay = OS.gdk_x11_display_get_xdisplay(OS.gdk_display_get_default()); |
| OS.XFlush (xDisplay); |
| } |
| } |
| } |
| |
| /** |
| * 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; |
| } |
| } |
| |
| static long /*int*/ enterNotifyEventProc (long /*int*/ ihint, long /*int*/ n_param_values, long /*int*/ param_values, long /*int*/ data) { |
| /* 427776: this workaround listens to the enter-notify-event signal on all |
| * GtkWidgets. If enableWindow (the data parameter) has been added to the |
| * internal hash table of the widget, a record is kept as the lifetime of |
| * enableWindow is controlled here, so we'll need to remove that reference |
| * when we destroy enableWindow. this internal hash table was removed in |
| * GTK 3.11.9 so once only newer GTK is targeted, this workaround can be |
| * removed. */ |
| long /*int*/ instance = OS.g_value_peek_pointer (param_values); |
| long /*int*/ hashTable = OS.g_object_get_qdata (instance, GTK_POINTER_WINDOW); |
| |
| // there will only ever be one item in the hash table |
| if (hashTable != 0) { |
| long /*int*/ firstItem = OS.g_hash_table_get_values (hashTable); |
| long /*int*/ gdkWindow = OS.g_list_data (firstItem); |
| // data is actually enableWindow |
| if (gdkWindow == data) |
| OS.g_object_set_qdata(gdkWindow, SWT_GRAB_WIDGET, instance); |
| } |
| |
| return 1; // keep the signal connected |
| } |
| |
| /** |
| * 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 (enabled) { |
| if (enableWindow != 0) { |
| cleanupEnableWindow(); |
| } |
| } else { |
| OS.gtk_widget_realize (handle); |
| long /*int*/ parentHandle = parent.eventHandle (); |
| long /*int*/ window = parent.eventWindow (); |
| long /*int*/ topHandle = topHandle (); |
| GdkWindowAttr attributes = new GdkWindowAttr (); |
| GtkAllocation allocation = new GtkAllocation (); |
| OS.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 = OS.GDK_INPUT_ONLY; |
| attributes.window_type = OS.GDK_WINDOW_CHILD; |
| enableWindow = OS.gdk_window_new (window, attributes, OS.GDK_WA_X | OS.GDK_WA_Y); |
| if (enableWindow != 0) { |
| /* 427776: we need to listen to all enter-notify-event signals to |
| * see if this new GdkWindow has been added to a widget's internal |
| * hash table, so when the GdkWindow is destroyed we can also remove |
| * that reference. */ |
| if (enterNotifyEventFunc != null) |
| enterNotifyEventId = OS.g_signal_add_emission_hook (enterNotifyEventSignalId, 0, enterNotifyEventFunc.getAddress (), enableWindow, 0); |
| |
| OS.gdk_window_set_user_data (enableWindow, parentHandle); |
| restackWindow (enableWindow, gtk_widget_get_window (topHandle), true); |
| if (OS.gtk_widget_get_visible (topHandle)) OS.gdk_window_show_unraised (enableWindow); |
| } |
| } |
| if (fixFocus) fixFocus (control); |
| } |
| |
| void cleanupEnableWindow() { |
| if (enterNotifyEventFunc != null) { |
| if (enterNotifyEventId > 0) |
| OS.g_signal_remove_emission_hook(enterNotifyEventSignalId, enterNotifyEventId); |
| enterNotifyEventId = 0; |
| |
| /* |
| * 427776: now we can remove any reference to the GdkWindow |
| * in a widget's internal hash table. this internal hash |
| * table was removed in GTK 3.11.9 so once only newer GTK is |
| * targeted, this workaround can be removed. |
| */ |
| long /*int*/ grabWidget = OS.g_object_get_qdata(enableWindow, SWT_GRAB_WIDGET); |
| if (grabWidget != 0) { |
| OS.g_object_set_qdata(grabWidget, GTK_POINTER_WINDOW, 0); |
| OS.g_object_set_qdata(enableWindow, SWT_GRAB_WIDGET, 0); |
| } |
| } |
| |
| OS.gdk_window_set_user_data (enableWindow, 0); |
| OS.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 /*int*/ 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 /*int*/ 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; |
| GdkColor gdkColor = null; |
| if (color != null) { |
| if (color.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| gdkColor = color.handle; |
| } |
| boolean set = false; |
| if (OS.GTK3) { |
| set = !getForeground().equals(color); |
| } else { |
| if (gdkColor == null) { |
| long /*int*/ style = OS.gtk_widget_get_modifier_style (handle); |
| set = (OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_NORMAL) & OS.GTK_RC_FG) != 0; |
| } else { |
| GdkColor oldColor = getForegroundGdkColor (); |
| set = oldColor.pixel != gdkColor.pixel; |
| } |
| } |
| if (set) { |
| if (color == null) { |
| state &= ~FOREGROUND; |
| } else { |
| state |= FOREGROUND; |
| } |
| if (OS.GTK3) { |
| GdkRGBA rgba = color == null ? null : color.handleRGBA; |
| setForegroundGdkRGBA (rgba); |
| } else { |
| setForegroundGdkColor (gdkColor); |
| } |
| } |
| } |
| |
| void setForegroundGdkRGBA (GdkRGBA rgba) { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| setForegroundGdkRGBA (handle, rgba); |
| } |
| |
| void setForegroundGdkColor (GdkColor color) { |
| assert !OS.GTK3 : "GTK2 code was run by GTK3"; |
| setForegroundColor (handle, color); |
| } |
| |
| void setForegroundGdkRGBA (long /*int*/ handle, GdkRGBA rgba) { |
| assert OS.GTK3 : "GTK3 code was run by GTK2"; |
| if (OS.GTK_VERSION >= OS.VERSION(3, 14, 0)) { |
| GdkRGBA toSet; |
| if (rgba != null) { |
| toSet = rgba; |
| } else { |
| toSet = display.COLOR_WIDGET_FOREGROUND_RGBA; |
| } |
| long /*int*/ context = OS.gtk_widget_get_style_context (handle); |
| // Form foreground string |
| String color = display.gtk_rgba_to_css_string(toSet); |
| String name = OS.GTK_VERSION >= OS.VERSION(3, 20, 0) ? display.gtk_widget_class_get_css_name(handle) |
| : display.gtk_widget_get_name(handle); |
| GdkRGBA selectedForeground = display.COLOR_LIST_SELECTION_TEXT_RGBA; |
| String selection = OS.GTK_VERSION >= OS.VERSION(3, 20, 0) && |
| !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); |
| } else { |
| GdkRGBA selectedForeground = display.COLOR_LIST_SELECTION_TEXT_RGBA; |
| OS.gtk_widget_override_color (handle, OS.GTK_STATE_FLAG_NORMAL, rgba); |
| OS.gtk_widget_override_color (handle, OS.GTK_STATE_FLAG_SELECTED, selectedForeground); |
| long /*int*/ context = OS.gtk_widget_get_style_context (handle); |
| OS.gtk_style_context_invalidate (context); |
| return; |
| } |
| } |
| |
| 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 /*int*/ topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation(); |
| if ((parent.style & SWT.MIRRORED) != 0) { |
| allocation.x = parent.getClientWidth (); |
| } else { |
| allocation.x = 0; |
| } |
| allocation.y = 0; |
| if (OS.GTK3) { |
| OS.gtk_widget_set_visible(topHandle, true); |
| } |
| OS.gtk_widget_set_allocation(topHandle, allocation); |
| } else { |
| resizeHandle (1, 1); |
| forceResize (); |
| } |
| } |
| |
| /* |
| * 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 () { |
| if (OS.GTK_VERSION >= OS.VERSION(3, 14, 0)) { |
| dragGesture = OS.gtk_gesture_drag_new (handle); |
| OS.gtk_event_controller_set_propagation_phase (dragGesture, |
| 2); |
| OS.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 () { |
| if (OS.GTK_VERSION >= OS.VERSION(3, 14, 0)) { |
| rotateGesture = OS.gtk_gesture_rotate_new(handle); |
| OS.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 () { |
| if (OS.GTK_VERSION >= OS.VERSION(3, 14, 0)) { |
| zoomGesture = OS.gtk_gesture_zoom_new(handle); |
| OS.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 /*int*/ 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 /*int*/ gesture, double angle, double angle_delta, long /*int*/ user_data) { |
| if (OS.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| OS.gtk_get_current_event_state(state); |
| OS.gtk_gesture_get_point(gesture, OS.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 = -(OS.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 /*int*/ gesture, double zoom, long /*int*/ user_data) { |
| if (OS.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| OS.gtk_get_current_event_state(state); |
| OS.gtk_gesture_get_point(gesture, OS.gtk_gesture_get_last_updated_sequence(gesture), x, y); |
| double delta = OS.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 /*int*/ gesture, double velocity_x, double velocity_y, long /*int*/ user_data) { |
| if (OS.gtk_gesture_is_recognized(gesture)) { |
| double [] xVelocity = new double [1]; |
| double [] yVelocity = new double [1]; |
| if (OS.gtk_gesture_swipe_get_velocity(gesture, xVelocity, yVelocity)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| OS.gtk_get_current_event_state(state); |
| OS.gtk_gesture_get_point(gesture, OS.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 /*int*/ gesture, long /*int*/ sequence, long /*int*/ user_data) { |
| if (OS.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| OS.gtk_get_current_event_state(state); |
| OS.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 /*int*/ gesture, long /*int*/ sequence, long /*int*/ user_data) { |
| if (OS.gtk_gesture_is_recognized(gesture)) { |
| int [] state = new int[1]; |
| double [] x = new double[1]; |
| double [] y = new double[1]; |
| OS.gtk_get_current_event_state(state); |
| OS.gtk_gesture_get_point(gesture, OS.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 ? OS.GTK_TEXT_DIR_RTL : OS.GTK_TEXT_DIR_LTR; |
| if (handle != 0) OS.gtk_widget_set_direction (handle, dir); |
| if (fixedHandle != 0) OS.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; |
| OS.gtk_widget_realize (parent.handle); |
| long /*int*/ topHandle = topHandle (); |
| GtkAllocation allocation = new GtkAllocation (); |
| OS.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 /*int*/ newParent = parent.parentingHandle(); |
| OS.gtk_widget_reparent(topHandle, newParent); |
| if (OS.GTK3) { |
| OS.swt_fixed_move (newParent, topHandle, x, y); |
| } else { |
| OS.gtk_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_size_request (topHandle, requisition); |
| allocation.x = x; |
| allocation.y = y; |
| allocation.width = width; |
| allocation.height = height; |
| OS.gtk_widget_size_allocate (topHandle, allocation); |
| this.parent = parent; |
| setZOrder (null, false, true); |
| reskin (SWT.ALL); |
| return true; |
| } |
| |
| void setParentBackground () { |
| if (OS.GTK3) { |
| backgroundAlpha = 0; |
| } else { |
| setBackgroundGdkColor (handle, null); |
| if (fixedHandle != 0) setBackgroundGdkColor (fixedHandle, null); |
| } |
| } |
| |
| void setParentWindow (long /*int*/ widget) { |
| } |
| |
| 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 (redrawWindow != 0) { |
| long /*int*/ window = paintWindow (); |
| /* Explicitly hiding the window avoids flicker on GTK+ >= 2.6 */ |
| OS.gdk_window_hide (redrawWindow); |
| OS.gdk_window_destroy (redrawWindow); |
| OS.gdk_window_set_events (window, OS.gtk_widget_get_events (paintHandle ())); |
| redrawWindow = 0; |
| } |
| } |
| } else { |
| if (drawCount++ == 0) { |
| if (OS.gtk_widget_get_realized (handle)) { |
| long /*int*/ window = paintWindow (); |
| Rectangle rect = getBoundsInPixels (); |
| GdkWindowAttr attributes = new GdkWindowAttr (); |
| attributes.width = rect.width; |
| attributes.height = rect.height; |
| attributes.event_mask = OS.GDK_EXPOSURE_MASK; |
| attributes.window_type = OS.GDK_WINDOW_CHILD; |
| redrawWindow = OS.gdk_window_new (window, attributes, 0); |
| if (redrawWindow != 0) { |
| int mouseMask = OS.GDK_BUTTON_PRESS_MASK | OS.GDK_BUTTON_RELEASE_MASK | |
| OS.GDK_ENTER_NOTIFY_MASK | OS.GDK_LEAVE_NOTIFY_MASK | |
| OS.GDK_POINTER_MOTION_MASK | OS.GDK_POINTER_MOTION_HINT_MASK | |
| OS.GDK_BUTTON_MOTION_MASK | OS.GDK_BUTTON1_MOTION_MASK | |
| OS.GDK_BUTTON2_MOTION_MASK | OS.GDK_BUTTON3_MOTION_MASK; |
| OS.gdk_window_set_events (window, OS.gdk_window_get_events (window) & ~mouseMask); |
| if (OS.GTK3) { |
| OS.gdk_window_set_background_pattern(redrawWindow, 0); |
| } else { |
| OS.gdk_window_set_back_pixmap (redrawWindow, 0, false); |
| } |
| OS.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> |
| * |
| * @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(); |
| setToolTipText (_getShell (), string); |
| toolTipText = 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, eventHandle (), 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> |
| * |
| * @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 /*int*/ 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 (enableWindow != 0) OS.gdk_window_show_unraised (enableWindow); |
| OS.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) { |
| if (OS.GTK3) { |
| OS.gtk_widget_set_can_focus (topHandle, false); |
| } else { |
| gtk_widget_set_visible (topHandle, false); |
| } |
| fixFocus (control); |
| if (isDisposed ()) return; |
| if (OS.GTK3) { |
| OS.gtk_widget_set_can_focus (topHandle, true); |
| } else { |
| gtk_widget_set_visible (topHandle, true); |
| } |
| } |
| OS.gtk_widget_hide (topHandle); |
| if (isDisposed ()) return; |
| if (enableWindow != 0) OS.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 /*int*/ topHandle = topHandle (); |
| long /*int*/ siblingHandle = sibling != null ? sibling.topHandle () : 0; |
| long /*int*/ window = gtk_widget_get_window (topHandle); |
| if (window != 0) { |
| long /*int*/ siblingWindow = 0; |
| if (sibling != null) { |
| if (above && sibling.enableWindow != 0) { |
| siblingWindow = enableWindow; |
| } else { |
| siblingWindow = OS.gtk_widget_get_window (siblingHandle); |
| } |
| } |
| long /*int*/ redrawWindow = fixChildren ? parent.redrawWindow : 0; |
| if (!OS.GDK_WINDOWING_X11 () || (siblingWindow == 0 && (!above || redrawWindow == 0))) { |
| if (above) { |
| OS.gdk_window_raise (window); |
| if (redrawWindow != 0) OS.gdk_window_raise (redrawWindow); |
| if (enableWindow != 0) OS.gdk_window_raise (enableWindow); |
| } else { |
| if (enableWindow != 0) OS.gdk_window_lower (enableWindow); |
| OS.gdk_window_lower (window); |
| } |
| } else { |
| long /*int*/ 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 () { |
| if (OS.GTK3) { |
| GdkRGBA rgba = (state & BACKGROUND) != 0 ? getBackgroundGdkRGBA () : null; |
| if (fixedHandle != 0) setBackgroundGdkRGBA (fixedHandle, rgba); |
| setBackgroundGdkRGBA (handle, rgba); |
| } else { |
| GdkColor color = (state & BACKGROUND) != 0 ? getBackgroundGdkColor () : null; |
| if (fixedHandle != 0) setBackgroundGdkColor (fixedHandle, color); |
| setBackgroundGdkColor (handle, color); |
| } |
| } |
| |
| 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 ()) { |
| boolean hooksKeys = hooks (SWT.KeyDown) || hooks (SWT.KeyUp); |
| menu.createIMMenu (hooksKeys ? imHandle() : 0); |
| 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 /*int*/ topHandle = topHandle (); |
| long /*int*/ parentHandle = parent.parentingHandle (); |
| parent.setParentWindow (topHandle); |
| OS.gtk_container_add (parentHandle, topHandle); |
| if (handle != 0 && handle != topHandle) OS.gtk_widget_show (handle); |
| if ((state & (ZERO_WIDTH | ZERO_HEIGHT)) == 0) { |
| if (fixedHandle != 0) OS.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, GdkEventKey gdkEvent) { |
| int key = OS.gdk_keyval_to_unicode (keyval); |
| if (key < 0x20) return false; |
| if (gdkEvent.state == 0) { |
| int code = traversalCode (keyval, gdkEvent); |
| if ((code & SWT.TRAVERSE_MNEMONIC) == 0) return false; |
| } else { |
| Shell shell = _getShell (); |
| int mask = OS.GDK_CONTROL_MASK | OS.GDK_SHIFT_MASK | OS.GDK_MOD1_MASK; |
| if ((gdkEvent.state & mask) != OS.gtk_window_get_mnemonic_modifier (shell.shellHandle)) return false; |
| } |
| Decorations shell = menuShell (); |
| if (shell.isVisible () && shell.isEnabled ()) { |
| Event event = new Event (); |
| event.detail = SWT.TRAVERSE_MNEMONIC; |
| if (setKeyState (event, gdkEvent)) { |
| return translateMnemonic (event, null) || shell.translateMnemonic (event, this); |
| } |
| } |
| return false; |
| } |
| |
| boolean translateTraversal (GdkEventKey keyEvent) { |
| int detail = SWT.TRAVERSE_NONE; |
| int key = keyEvent.keyval; |
| int code = traversalCode (key, keyEvent); |
| boolean all = false; |
| switch (key) { |
| case OS.GDK_Escape: { |
| all = true; |
| detail = SWT.TRAVERSE_ESCAPE; |
| break; |
| } |
| case OS.GDK_KP_Enter: |
| case OS.GDK_Return: { |
| all = true; |
| detail = SWT.TRAVERSE_RETURN; |
| break; |
| } |
| case OS.GDK_ISO_Left_Tab: |
| case OS.GDK_Tab: { |
| boolean next = (keyEvent.state & OS.GDK_SHIFT_MASK) == 0; |
| detail = next ? SWT.TRAVERSE_TAB_NEXT : SWT.TRAVERSE_TAB_PREVIOUS; |
| break; |
| } |
| case OS.GDK_Up: |
| case OS.GDK_Left: |
| case OS.GDK_Down: |
| case OS.GDK_Right: { |
| boolean next = key == OS.GDK_Down || key == OS.GDK_Right; |
| if (parent != null && (parent.style & SWT.MIRRORED) != 0) { |
| if (key == OS.GDK_Left || key == OS.GDK_Right) next = !next; |
| } |
| detail = next ? SWT.TRAVERSE_ARROW_NEXT : SWT.TRAVERSE_ARROW_PREVIOUS; |
| break; |
| } |
| case OS.GDK_Page_Up: |
| case OS.GDK_Page_Down: { |
| all = true; |
| if ((keyEvent.state & OS.GDK_CONTROL_MASK) == 0) return false; |
| detail = key == OS.GDK_Page_Down ? SWT.TRAVERSE_PAGE_NEXT : SWT.TRAVERSE_PAGE_PREVIOUS; |
| break; |
| } |
| default: |
| return false; |
| } |
| Event event = new Event (); |
| event.doit = (code & detail) != 0; |
| event.detail = detail; |
| event.time = keyEvent.time; |
| if (!setKeyState (event, keyEvent)) return false; |
| Shell shell = getShell (); |
| 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; |
| } |
| |
| int traversalCode (int key, GdkEventKey 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: This method does not cause a redraw. |
| * </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 #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 (!OS.gtk_widget_get_visible (topHandle ())) return; |
| if (!OS.gtk_widget_get_realized (handle)) return; |
| long /*int*/ window = paintWindow (); |
| if (flush) display.flushExposes (window, all); |
| /* |
| * Do not send expose events on GTK 3.16.0+ |
| * It's worth checking whether can be removed on all GTK 3 versions. |
| */ |
| if (OS.GTK_VERSION < OS.VERSION(3, 16, 0)) { |
| OS.gdk_window_process_updates (window, all); |
| } |
| OS.gdk_flush (); |
| } |
| |
| void updateBackgroundMode () { |
| int oldState = state & PARENT_BACKGROUND; |
| checkBackground (); |
| if (oldState != (state & PARENT_BACKGROUND)) { |
| setBackground (); |
| } |
| } |
| |
| void updateLayout (boolean all) { |
| /* Do nothing */ |
| } |
| |
| @Override |
| long /*int*/ windowProc (long /*int*/ handle, long /*int*/ arg0, long /*int*/ user_data) { |
| switch ((int)/*64*/user_data) { |
| case EXPOSE_EVENT_INVERSE: { |
| if ((state & OBSCURED) != 0) break; |
| Control control = findBackgroundControl (); |
| boolean draw = control != null && control.backgroundImage != null; |
| if (OS.GTK3 && !draw && (state & CANVAS) != 0) { |
| if (OS.GTK_VERSION < OS.VERSION(3, 14, 0)) { |
| GdkRGBA rgba = new GdkRGBA(); |
| long /*int*/ context = OS.gtk_widget_get_style_context (handle); |
| OS.gtk_style_context_get_background_color (context, OS.GTK_STATE_FLAG_NORMAL, rgba); |
| draw = rgba.alpha == 0; |
| } else { |
| draw = (state & BACKGROUND) == 0; |
| } |
| } |
| if (draw) { |
| if (OS.GTK3) { |
| long /*int*/ cairo = arg0; |
| GdkRectangle rect = new GdkRectangle (); |
| OS.gdk_cairo_get_clip_rectangle (cairo, rect); |
| if (control == null) control = this; |
| long /*int*/ window = OS.gtk_widget_get_window (handle); |
| if (window != 0) { |
| drawBackground (control, window, 0, 0, rect.x, rect.y, rect.width, rect.height); |
| } else { |
| drawBackground (control, 0, cairo, 0, rect.x, rect.y, rect.width, rect.height); |
| } |
| } else { |
| GdkEventExpose gdkEvent = new GdkEventExpose (); |
| OS.memmove (gdkEvent, arg0, GdkEventExpose.sizeof); |
| long /*int*/ paintWindow = paintWindow(); |
| long /*int*/ window = gdkEvent.window; |
| if (window != paintWindow) break; |
| drawBackground(control, window, gdkEvent.region, gdkEvent.area_x, gdkEvent.area_y, gdkEvent.area_width, gdkEvent.area_height); |
| } |
| } |
| break; |
| } |
| } |
| return super.windowProc (handle, arg0, user_data); |
| } |
| |
| /** |
| * Gets the position of the top left corner of the control in root window (display) coordinates. |
| * |
| * @return the origin |
| */ |
| Point getWindowOrigin () { |
| int [] x = new int [1]; |
| int [] y = new int [1]; |
| |
| long /*int*/ window = eventWindow (); |
| OS.gdk_window_get_origin (window, x, y); |
| |
| return new Point (x [0], y [0]); |
| } |
| } |