| /******************************************************************************* |
| * Copyright (c) 2000, 2012 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 |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.internal.cairo.*; |
| import org.eclipse.swt.internal.gtk.*; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * Instances of this class are controls which are capable |
| * of containing other controls. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>NO_BACKGROUND, NO_FOCUS, NO_MERGE_PAINTS, NO_REDRAW_RESIZE, NO_RADIO_GROUP, EMBEDDED, DOUBLE_BUFFERED</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <p> |
| * Note: The <code>NO_BACKGROUND</code>, <code>NO_FOCUS</code>, <code>NO_MERGE_PAINTS</code>, |
| * and <code>NO_REDRAW_RESIZE</code> styles are intended for use with <code>Canvas</code>. |
| * They can be used with <code>Composite</code> if you are drawing your own, but their |
| * behavior is undefined if they are used with subclasses of <code>Composite</code> other |
| * than <code>Canvas</code>. |
| * </p><p> |
| * Note: The <code>CENTER</code> style, although undefined for composites, has the |
| * same value as <code>EMBEDDED</code> which is used to embed widgets from other |
| * widget toolkits into SWT. On some operating systems (GTK, Motif), this may cause |
| * the children of this composite to be obscured. |
| * </p><p> |
| * This class may be subclassed by custom control implementors |
| * who are building controls that are constructed from aggregates |
| * of other controls. |
| * </p> |
| * |
| * @see Canvas |
| * @see <a href="http://www.eclipse.org/swt/snippets/#composite">Composite snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| */ |
| public class Composite extends Scrollable { |
| /** |
| * the handle to the OS resource |
| * (Warning: This field is platform dependent) |
| * <p> |
| * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
| * public API. 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 accessed from application code. |
| * </p> |
| * |
| * @noreference This field is not intended to be referenced by clients. |
| */ |
| public long /*int*/ embeddedHandle; |
| long /*int*/ imHandle, socketHandle; |
| Layout layout; |
| Control[] tabList; |
| int layoutCount, backgroundMode; |
| |
| static final String NO_INPUT_METHOD = "org.eclipse.swt.internal.gtk.noInputMethod"; //$NON-NLS-1$ |
| |
| Composite () { |
| /* Do nothing */ |
| } |
| |
| /** |
| * 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 widget which will be the parent of the new instance (cannot be null) |
| * @param style the style of widget 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> |
| * </ul> |
| * |
| * @see SWT#NO_BACKGROUND |
| * @see SWT#NO_FOCUS |
| * @see SWT#NO_MERGE_PAINTS |
| * @see SWT#NO_REDRAW_RESIZE |
| * @see SWT#NO_RADIO_GROUP |
| * @see SWT#EMBEDDED |
| * @see SWT#DOUBLE_BUFFERED |
| * @see Widget#getStyle |
| */ |
| public Composite (Composite parent, int style) { |
| super (parent, checkStyle (style)); |
| } |
| |
| static int checkStyle (int style) { |
| if (OS.INIT_CAIRO) { |
| style &= ~SWT.NO_BACKGROUND; |
| } |
| style &= ~SWT.TRANSPARENT; |
| return style; |
| } |
| |
| Control [] _getChildren () { |
| long /*int*/ parentHandle = parentingHandle (); |
| long /*int*/ list = OS.gtk_container_get_children (parentHandle); |
| if (list == 0) return new Control [0]; |
| int count = OS.g_list_length (list); |
| Control [] children = new Control [count]; |
| int i = 0; |
| long /*int*/ temp = list; |
| while (temp != 0) { |
| long /*int*/ handle = OS.g_list_data (temp); |
| if (handle != 0) { |
| Widget widget = display.getWidget (handle); |
| if (widget != null && widget != this) { |
| if (widget instanceof Control) { |
| children [i++] = (Control) widget; |
| } |
| } |
| } |
| temp = OS.g_list_next (temp); |
| } |
| OS.g_list_free (list); |
| if (i == count) return children; |
| Control [] newChildren = new Control [i]; |
| System.arraycopy (children, 0, newChildren, 0, i); |
| return newChildren; |
| } |
| |
| Control [] _getTabList () { |
| if (tabList == null) return tabList; |
| int count = 0; |
| for (int i=0; i<tabList.length; i++) { |
| if (!tabList [i].isDisposed ()) count++; |
| } |
| if (count == tabList.length) return tabList; |
| Control [] newList = new Control [count]; |
| int index = 0; |
| for (int i=0; i<tabList.length; i++) { |
| if (!tabList [i].isDisposed ()) { |
| newList [index++] = tabList [i]; |
| } |
| } |
| tabList = newList; |
| return tabList; |
| } |
| |
| /** |
| * Clears any data that has been cached by a Layout for all widgets that |
| * are in the parent hierarchy of the changed control up to and including the |
| * receiver. If an ancestor does not have a layout, it is skipped. |
| * |
| * @param changed an array of controls that changed state and require a recalculation of size |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the changed array is null any of its controls are null or have been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if any control in changed is not in the widget tree of the receiver</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 3.1 |
| */ |
| public void changed (Control[] changed) { |
| checkWidget (); |
| if (changed == null) error (SWT.ERROR_INVALID_ARGUMENT); |
| for (int i=0; i<changed.length; i++) { |
| Control control = changed [i]; |
| if (control == null) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| boolean ancestor = false; |
| Composite composite = control.parent; |
| while (composite != null) { |
| ancestor = composite == this; |
| if (ancestor) break; |
| composite = composite.parent; |
| } |
| if (!ancestor) error (SWT.ERROR_INVALID_PARENT); |
| } |
| for (int i=0; i<changed.length; i++) { |
| Control child = changed [i]; |
| Composite composite = child.parent; |
| while (child != this) { |
| if (composite.layout == null || !composite.layout.flushCache (child)) { |
| composite.state |= LAYOUT_CHANGED; |
| } |
| child = composite; |
| composite = child.parent; |
| } |
| } |
| } |
| |
| @Override |
| void checkBuffered () { |
| if ((style & SWT.DOUBLE_BUFFERED) == 0 && (style & SWT.NO_BACKGROUND) != 0) { |
| return; |
| } |
| super.checkBuffered(); |
| } |
| |
| @Override |
| protected void checkSubclass () { |
| /* Do nothing - Subclassing is allowed */ |
| } |
| |
| @Override |
| long /*int*/ childStyle () { |
| if (scrolledHandle != 0) return 0; |
| return super.childStyle (); |
| } |
| |
| @Override |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| display.runSkin(); |
| if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; |
| if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; |
| Point size; |
| if (layout != null) { |
| if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) { |
| changed |= (state & LAYOUT_CHANGED) != 0; |
| size = layout.computeSize (this, wHint, hHint, changed); |
| state &= ~LAYOUT_CHANGED; |
| } else { |
| size = new Point (wHint, hHint); |
| } |
| } else { |
| size = minimumSize (wHint, hHint, changed); |
| if (size.x == 0) size.x = DEFAULT_WIDTH; |
| if (size.y == 0) size.y = DEFAULT_HEIGHT; |
| } |
| if (wHint != SWT.DEFAULT) size.x = wHint; |
| if (hHint != SWT.DEFAULT) size.y = hHint; |
| Rectangle trim = computeTrim (0, 0, size.x, size.y); |
| return new Point (trim.width, trim.height); |
| } |
| |
| @Override |
| Widget [] computeTabList () { |
| Widget result [] = super.computeTabList (); |
| if (result.length == 0) return result; |
| Control [] list = tabList != null ? _getTabList () : _getChildren (); |
| for (int i=0; i<list.length; i++) { |
| Control child = list [i]; |
| Widget [] childList = child.computeTabList (); |
| if (childList.length != 0) { |
| Widget [] newResult = new Widget [result.length + childList.length]; |
| System.arraycopy (result, 0, newResult, 0, result.length); |
| System.arraycopy (childList, 0, newResult, result.length, childList.length); |
| result = newResult; |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| void createHandle (int index) { |
| state |= HANDLE | CANVAS | CHECK_SUBWINDOW; |
| boolean scrolled = (style & (SWT.H_SCROLL | SWT.V_SCROLL)) != 0; |
| if (!scrolled) state |= THEME_BACKGROUND; |
| createHandle (index, true, scrolled || (style & SWT.BORDER) != 0); |
| } |
| |
| void createHandle (int index, boolean fixed, boolean scrolled) { |
| if (scrolled) { |
| if (fixed) { |
| fixedHandle = OS.g_object_new (display.gtk_fixed_get_type (), 0); |
| if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| gtk_widget_set_has_window (fixedHandle, true); |
| } |
| long /*int*/ vadj = OS.gtk_adjustment_new (0, 0, 100, 1, 10, 10); |
| if (vadj == 0) error (SWT.ERROR_NO_HANDLES); |
| long /*int*/ hadj = OS.gtk_adjustment_new (0, 0, 100, 1, 10, 10); |
| if (hadj == 0) error (SWT.ERROR_NO_HANDLES); |
| scrolledHandle = OS.gtk_scrolled_window_new (hadj, vadj); |
| if (scrolledHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| } |
| handle = OS.g_object_new (display.gtk_fixed_get_type (), 0); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| gtk_widget_set_has_window (handle, true); |
| gtk_widget_set_can_focus (handle, true); |
| if ((style & SWT.EMBEDDED) == 0) { |
| if ((state & CANVAS) != 0) { |
| /* Prevent an input method context from being created for the Browser widget */ |
| if (display.getData (NO_INPUT_METHOD) == null) { |
| imHandle = OS.gtk_im_multicontext_new (); |
| if (imHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| } |
| } |
| } |
| if (scrolled) { |
| if (fixed) OS.gtk_container_add (fixedHandle, scrolledHandle); |
| /* |
| * Force the scrolledWindow to have a single child that is |
| * not scrolled automatically. Calling gtk_container_add() |
| * seems to add the child correctly but cause a warning. |
| */ |
| boolean warnings = display.getWarnings (); |
| display.setWarnings (false); |
| OS.gtk_container_add (scrolledHandle, handle); |
| display.setWarnings (warnings); |
| |
| int hsp = (style & SWT.H_SCROLL) != 0 ? OS.GTK_POLICY_ALWAYS : OS.GTK_POLICY_NEVER; |
| int vsp = (style & SWT.V_SCROLL) != 0 ? OS.GTK_POLICY_ALWAYS : OS.GTK_POLICY_NEVER; |
| OS.gtk_scrolled_window_set_policy (scrolledHandle, hsp, vsp); |
| if (hasBorder ()) { |
| OS.gtk_scrolled_window_set_shadow_type (scrolledHandle, OS.GTK_SHADOW_ETCHED_IN); |
| } |
| } |
| if ((style & SWT.EMBEDDED) != 0) { |
| socketHandle = OS.gtk_socket_new (); |
| if (socketHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_container_add (handle, socketHandle); |
| } |
| if ((style & SWT.NO_REDRAW_RESIZE) != 0 && (style & SWT.RIGHT_TO_LEFT) == 0) { |
| OS.gtk_widget_set_redraw_on_allocate (handle, false); |
| } |
| /* |
| * Bug in GTK. When a widget is double buffered and the back |
| * pixmap is null, the double buffer pixmap is filled with the |
| * background of the widget rather than the current contents of |
| * the screen. If nothing is drawn during an expose event, |
| * the pixels are altered. The fix is to clear double buffering |
| * when NO_BACKGROUND is set and DOUBLE_BUFFERED |
| * is not explicitly set. |
| */ |
| if ((style & SWT.DOUBLE_BUFFERED) == 0 && (style & SWT.NO_BACKGROUND) != 0) { |
| OS.gtk_widget_set_double_buffered (handle, false); |
| } |
| } |
| |
| @Override |
| void deregister () { |
| super.deregister (); |
| if (socketHandle != 0) display.removeWidget (socketHandle); |
| } |
| |
| /** |
| * Fills the interior of the rectangle specified by the arguments, |
| * with the receiver's background. |
| * |
| * <p>The <code>offsetX</code> and <code>offsetY</code> are used to map from |
| * the <code>gc</code> origin to the origin of the parent image background. This is useful |
| * to ensure proper alignment of the image background.</p> |
| * |
| * @param gc the gc where the rectangle is to be filled |
| * @param x the x coordinate of the rectangle to be filled |
| * @param y the y coordinate of the rectangle to be filled |
| * @param width the width of the rectangle to be filled |
| * @param height the height of the rectangle to be filled |
| * @param offsetX the image background x offset |
| * @param offsetY the image background y offset |
| * |
| * @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 3.6 |
| */ |
| public void drawBackground (GC gc, int x, int y, int width, int height, int offsetX, int offsetY) { |
| checkWidget (); |
| if (gc == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (gc.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| Control control = findBackgroundControl (); |
| if (control != null) { |
| GCData data = gc.getGCData (); |
| long /*int*/ cairo = data.cairo; |
| if (cairo != 0) { |
| Cairo.cairo_save (cairo); |
| if (control.backgroundImage != null) { |
| Point pt = display.map (this, control, 0, 0); |
| Cairo.cairo_translate (cairo, -pt.x - offsetX, -pt.y - offsetY); |
| x += pt.x + offsetX; |
| y += pt.y + offsetY; |
| long /*int*/ surface = control.backgroundImage.surface; |
| if (surface == 0) { |
| long /*int*/ drawable = control.backgroundImage.pixmap; |
| int [] w = new int [1], h = new int [1]; |
| gdk_pixmap_get_size (drawable, w, h); |
| if (OS.GDK_WINDOWING_X11 () && !OS.GDK_WINDOWING_WAYLAND ()) { |
| 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 (drawable); |
| surface = Cairo.cairo_xlib_surface_create (xDisplay, xDrawable, xVisual, w [0], h [0]); |
| } else { |
| surface = Cairo.cairo_image_surface_create(Cairo.CAIRO_FORMAT_ARGB32, w [0], h [0]); |
| } |
| if (surface == 0) error (SWT.ERROR_NO_HANDLES); |
| } else { |
| Cairo.cairo_surface_reference(surface); |
| } |
| long /*int*/ pattern = Cairo.cairo_pattern_create_for_surface (surface); |
| if (pattern == 0) error (SWT.ERROR_NO_HANDLES); |
| Cairo.cairo_pattern_set_extend (pattern, Cairo.CAIRO_EXTEND_REPEAT); |
| if ((data.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_surface_destroy (surface); |
| Cairo.cairo_pattern_destroy (pattern); |
| } else { |
| GdkColor color = control.getBackgroundColor (); |
| Cairo.cairo_set_source_rgba (cairo, (color.red & 0xFFFF) / (float)0xFFFF, (color.green & 0xFFFF) / (float)0xFFFF, (color.blue & 0xFFFF) / (float)0xFFFF, data.alpha / (float)0xFF); |
| } |
| Cairo.cairo_rectangle (cairo, x, y, width, height); |
| Cairo.cairo_fill (cairo); |
| Cairo.cairo_restore (cairo); |
| } else { |
| long /*int*/ gdkGC = gc.handle; |
| GdkGCValues values = new GdkGCValues (); |
| OS.gdk_gc_get_values (gdkGC, values); |
| if (control.backgroundImage != null) { |
| Point pt = display.map (this, control, 0, 0); |
| OS.gdk_gc_set_fill (gdkGC, OS.GDK_TILED); |
| OS.gdk_gc_set_ts_origin (gdkGC, -pt.x - offsetX, -pt.y - offsetY); |
| OS.gdk_gc_set_tile (gdkGC, control.backgroundImage.pixmap); |
| OS.gdk_draw_rectangle (data.drawable, gdkGC, 1, x, y, width, height); |
| OS.gdk_gc_set_fill (gdkGC, values.fill); |
| OS.gdk_gc_set_ts_origin (gdkGC, values.ts_x_origin, values.ts_y_origin); |
| } else { |
| GdkColor color = control.getBackgroundColor (); |
| OS.gdk_gc_set_foreground (gdkGC, color); |
| OS.gdk_draw_rectangle (data.drawable, gdkGC, 1, x, y, width, height); |
| color.pixel = values.foreground_pixel; |
| OS.gdk_gc_set_foreground (gdkGC, color); |
| } |
| } |
| } else { |
| gc.fillRectangle (x, y, width, height); |
| } |
| } |
| |
| @Override |
| void enableWidget (boolean enabled) { |
| if ((state & CANVAS) != 0) return; |
| super.enableWidget (enabled); |
| } |
| |
| Composite findDeferredControl () { |
| return layoutCount > 0 ? this : parent.findDeferredControl (); |
| } |
| |
| @Override |
| Menu [] findMenus (Control control) { |
| if (control == this) return new Menu [0]; |
| Menu result [] = super.findMenus (control); |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| Control child = children [i]; |
| Menu [] menuList = child.findMenus (control); |
| if (menuList.length != 0) { |
| Menu [] newResult = new Menu [result.length + menuList.length]; |
| System.arraycopy (result, 0, newResult, 0, result.length); |
| System.arraycopy (menuList, 0, newResult, result.length, menuList.length); |
| result = newResult; |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| void fixChildren (Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu [] menus) { |
| super.fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| children [i].fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); |
| } |
| } |
| |
| @Override |
| void fixModal(long /*int*/ group, long /*int*/ modalGroup) { |
| Control[] controls = _getChildren (); |
| for (int i = 0; i < controls.length; i++) { |
| controls[i].fixModal (group, modalGroup); |
| } |
| } |
| |
| @Override |
| void fixStyle () { |
| super.fixStyle (); |
| if (scrolledHandle == 0) fixStyle (handle); |
| Control[] children = _getChildren (); |
| for (int i = 0; i < children.length; i++) { |
| children [i].fixStyle (); |
| } |
| } |
| |
| void fixTabList (Control control) { |
| if (tabList == null) return; |
| int count = 0; |
| for (int i=0; i<tabList.length; i++) { |
| if (tabList [i] == control) count++; |
| } |
| if (count == 0) return; |
| Control [] newList = null; |
| int length = tabList.length - count; |
| if (length != 0) { |
| newList = new Control [length]; |
| int index = 0; |
| for (int i=0; i<tabList.length; i++) { |
| if (tabList [i] != control) { |
| newList [index++] = tabList [i]; |
| } |
| } |
| } |
| tabList = newList; |
| } |
| |
| void fixZOrder () { |
| if ((state & CANVAS) != 0) return; |
| long /*int*/ parentHandle = parentingHandle (); |
| long /*int*/ parentWindow = gtk_widget_get_window (parentHandle); |
| if (parentWindow == 0) return; |
| long /*int*/ [] userData = new long /*int*/ [1]; |
| long /*int*/ windowList = OS.gdk_window_get_children (parentWindow); |
| if (windowList != 0) { |
| long /*int*/ windows = windowList; |
| while (windows != 0) { |
| long /*int*/ window = OS.g_list_data (windows); |
| if (window != redrawWindow) { |
| OS.gdk_window_get_user_data (window, userData); |
| if (userData [0] == 0 || OS.G_OBJECT_TYPE (userData [0]) != display.gtk_fixed_get_type ()) { |
| OS.gdk_window_lower (window); |
| } |
| } |
| windows = OS.g_list_next (windows); |
| } |
| OS.g_list_free (windowList); |
| } |
| } |
| |
| @Override |
| long /*int*/ focusHandle () { |
| if (socketHandle != 0) return socketHandle; |
| return super.focusHandle (); |
| } |
| |
| @Override |
| boolean forceFocus (long /*int*/ focusHandle) { |
| if (socketHandle != 0) gtk_widget_set_can_focus (focusHandle, true); |
| boolean result = super.forceFocus (focusHandle); |
| if (socketHandle != 0) gtk_widget_set_can_focus (focusHandle, false); |
| return result; |
| } |
| |
| /** |
| * Returns the receiver's background drawing mode. This |
| * will be one of the following constants defined in class |
| * <code>SWT</code>: |
| * <code>INHERIT_NONE</code>, <code>INHERIT_DEFAULT</code>, |
| * <code>INHERIT_FORCE</code>. |
| * |
| * @return the background mode |
| * |
| * @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 |
| * |
| * @since 3.2 |
| */ |
| public int getBackgroundMode () { |
| checkWidget (); |
| return backgroundMode; |
| } |
| |
| /** |
| * Returns a (possibly empty) array containing the receiver's children. |
| * Children are returned in the order that they are drawn. The topmost |
| * control appears at the beginning of the array. Subsequent controls |
| * draw beneath this control and appear later in the array. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of children, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return an array of children |
| * |
| * @see Control#moveAbove |
| * @see Control#moveBelow |
| * |
| * @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 Control [] getChildren () { |
| checkWidget(); |
| return _getChildren (); |
| } |
| |
| int getChildrenCount () { |
| /* |
| * NOTE: The current implementation will count |
| * non-registered children. |
| */ |
| long /*int*/ list = OS.gtk_container_get_children (handle); |
| if (list == 0) return 0; |
| int count = OS.g_list_length (list); |
| OS.g_list_free (list); |
| return count; |
| } |
| |
| @Override |
| public Rectangle getClientArea () { |
| checkWidget(); |
| if ((state & CANVAS) != 0) { |
| if ((state & ZERO_WIDTH) != 0 && (state & ZERO_HEIGHT) != 0) { |
| return new Rectangle (0, 0, 0, 0); |
| } |
| forceResize (); |
| long /*int*/ clientHandle = clientHandle (); |
| GtkAllocation allocation = new GtkAllocation(); |
| gtk_widget_get_allocation (clientHandle, allocation); |
| int width = (state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| int height = (state & ZERO_HEIGHT) != 0 ? 0 : allocation.height; |
| return new Rectangle (0, 0, width, height); |
| } |
| return super.getClientArea(); |
| } |
| |
| /** |
| * Returns layout which is associated with the receiver, or |
| * null if one has not been set. |
| * |
| * @return the receiver's layout 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 Layout getLayout () { |
| checkWidget(); |
| return layout; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver has deferred |
| * the performing of layout, and <code>false</code> otherwise. |
| * |
| * @return the receiver's deferred layout 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 #setLayoutDeferred(boolean) |
| * @see #isLayoutDeferred() |
| * |
| * @since 3.1 |
| */ |
| public boolean getLayoutDeferred () { |
| checkWidget (); |
| return layoutCount > 0 ; |
| } |
| |
| /** |
| * Gets the (possibly empty) tabbing order for the control. |
| * |
| * @return tabList the ordered list of controls representing the tab order |
| * |
| * @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 #setTabList |
| */ |
| public Control [] getTabList () { |
| checkWidget (); |
| Control [] tabList = _getTabList (); |
| if (tabList == null) { |
| int count = 0; |
| Control [] list =_getChildren (); |
| for (int i=0; i<list.length; i++) { |
| if (list [i].isTabGroup ()) count++; |
| } |
| tabList = new Control [count]; |
| int index = 0; |
| for (int i=0; i<list.length; i++) { |
| if (list [i].isTabGroup ()) { |
| tabList [index++] = list [i]; |
| } |
| } |
| } |
| return tabList; |
| } |
| |
| @Override |
| long /*int*/ gtk_button_press_event (long /*int*/ widget, long /*int*/ event) { |
| long /*int*/ result = super.gtk_button_press_event (widget, event); |
| if (result != 0) return result; |
| if ((state & CANVAS) != 0) { |
| if ((style & SWT.NO_FOCUS) == 0 && hooksKeys ()) { |
| GdkEventButton gdkEvent = new GdkEventButton (); |
| OS.memmove (gdkEvent, event, GdkEventButton.sizeof); |
| if (gdkEvent.button == 1) { |
| if (getChildrenCount () == 0) setFocus (); |
| } |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| long /*int*/ gtk_expose_event (long /*int*/ widget, long /*int*/ eventPtr) { |
| if ((state & OBSCURED) != 0) return 0; |
| if ((state & CANVAS) == 0) { |
| return super.gtk_expose_event (widget, eventPtr); |
| } |
| if ((style & SWT.NO_MERGE_PAINTS) == 0) { |
| return super.gtk_expose_event (widget, eventPtr); |
| } |
| if (!hooksPaint ()) return 0; |
| GdkEventExpose gdkEvent = new GdkEventExpose (); |
| OS.memmove(gdkEvent, eventPtr, GdkEventExpose.sizeof); |
| long /*int*/ [] rectangles = new long /*int*/ [1]; |
| int [] n_rectangles = new int [1]; |
| OS.gdk_region_get_rectangles (gdkEvent.region, rectangles, n_rectangles); |
| GdkRectangle rect = new GdkRectangle (); |
| for (int i=0; i<n_rectangles[0]; i++) { |
| Event event = new Event (); |
| OS.memmove (rect, rectangles [0] + i * GdkRectangle.sizeof, GdkRectangle.sizeof); |
| event.x = rect.x; |
| event.y = rect.y; |
| event.width = rect.width; |
| event.height = rect.height; |
| if ((style & SWT.MIRRORED) != 0) event.x = getClientWidth () - event.width - event.x; |
| long /*int*/ damageRgn = OS.gdk_region_new (); |
| OS.gdk_region_union_with_rect (damageRgn, rect); |
| GCData data = new GCData (); |
| data.damageRgn = damageRgn; |
| GC gc = event.gc = GC.gtk_new (this, data); |
| sendEvent (SWT.Paint, event); |
| gc.dispose (); |
| OS.gdk_region_destroy (damageRgn); |
| event.gc = null; |
| } |
| OS.g_free (rectangles [0]); |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_key_press_event (long /*int*/ widget, long /*int*/ event) { |
| long /*int*/ result = super.gtk_key_press_event (widget, event); |
| if (result != 0) return result; |
| /* |
| * Feature in GTK. The default behavior when the return key |
| * is pressed is to select the default button. This is not the |
| * expected behavior for Composite and its subclasses. The |
| * fix is to avoid calling the default handler. |
| */ |
| if ((state & CANVAS) != 0 && socketHandle == 0) { |
| GdkEventKey keyEvent = new GdkEventKey (); |
| OS.memmove (keyEvent, event, GdkEventKey.sizeof); |
| int key = keyEvent.keyval; |
| switch (key) { |
| case OS.GDK_Return: |
| case OS.GDK_KP_Enter: return 1; |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| long /*int*/ gtk_focus (long /*int*/ widget, long /*int*/ directionType) { |
| if (widget == socketHandle) return 0; |
| return super.gtk_focus (widget, directionType); |
| } |
| |
| @Override |
| long /*int*/ gtk_focus_in_event (long /*int*/ widget, long /*int*/ event) { |
| long /*int*/ result = super.gtk_focus_in_event (widget, event); |
| return (state & CANVAS) != 0 ? 1 : result; |
| } |
| |
| @Override |
| long /*int*/ gtk_focus_out_event (long /*int*/ widget, long /*int*/ event) { |
| long /*int*/ result = super.gtk_focus_out_event (widget, event); |
| return (state & CANVAS) != 0 ? 1 : result; |
| } |
| |
| @Override |
| long /*int*/ gtk_map (long /*int*/ widget) { |
| fixZOrder (); |
| return 0; |
| } |
| |
| @Override |
| long /*int*/ gtk_realize (long /*int*/ widget) { |
| long /*int*/ result = super.gtk_realize (widget); |
| if ((style & SWT.NO_BACKGROUND) != 0) { |
| long /*int*/ window = gtk_widget_get_window (paintHandle ()); |
| if (window != 0) OS.gdk_window_set_back_pixmap (window, 0, false); |
| } |
| if (socketHandle != 0) { |
| embeddedHandle = OS.gtk_socket_get_id (socketHandle); |
| } |
| return result; |
| } |
| |
| @Override |
| long /*int*/ gtk_scroll_child (long /*int*/ widget, long /*int*/ scrollType, long /*int*/ horizontal) { |
| /* Stop GTK scroll child signal for canvas */ |
| OS.g_signal_stop_emission_by_name (widget, OS.scroll_child); |
| return 1; |
| } |
| |
| @Override |
| long /*int*/ gtk_style_set (long /*int*/ widget, long /*int*/ previousStyle) { |
| long /*int*/ result = super.gtk_style_set (widget, previousStyle); |
| if ((style & SWT.NO_BACKGROUND) != 0) { |
| long /*int*/ window = gtk_widget_get_window (paintHandle ()); |
| if (window != 0) OS.gdk_window_set_back_pixmap (window, 0, false); |
| } |
| return result; |
| } |
| |
| boolean hasBorder () { |
| return (style & SWT.BORDER) != 0; |
| } |
| |
| @Override |
| void hookEvents () { |
| super.hookEvents (); |
| if ((state & CANVAS) != 0) { |
| OS.gtk_widget_add_events (handle, OS.GDK_POINTER_MOTION_HINT_MASK); |
| if (scrolledHandle != 0) { |
| OS.g_signal_connect_closure (scrolledHandle, OS.scroll_child, display.getClosure (SCROLL_CHILD), false); |
| } |
| } |
| } |
| |
| boolean hooksKeys () { |
| return hooks (SWT.KeyDown) || hooks (SWT.KeyUp); |
| } |
| |
| @Override |
| long /*int*/ imHandle () { |
| return imHandle; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver or any ancestor |
| * up to and including the receiver's nearest ancestor shell |
| * has deferred the performing of layouts. Otherwise, <code>false</code> |
| * is returned. |
| * |
| * @return the receiver's deferred layout 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 #setLayoutDeferred(boolean) |
| * @see #getLayoutDeferred() |
| * |
| * @since 3.1 |
| */ |
| public boolean isLayoutDeferred () { |
| checkWidget (); |
| return findDeferredControl () != null; |
| } |
| |
| @Override |
| boolean isTabGroup() { |
| if ((state & CANVAS) != 0) return true; |
| return super.isTabGroup(); |
| } |
| |
| /** |
| * If the receiver has a layout, asks the layout to <em>lay out</em> |
| * (that is, set the size and location of) the receiver's children. |
| * If the receiver does not have a layout, do nothing. |
| * <p> |
| * This is equivalent to calling <code>layout(true)</code>. |
| * </p> |
| * <p> |
| * Note: Layout is different from painting. If a child is |
| * moved or resized such that an area in the parent is |
| * exposed, then the parent will paint. If no child is |
| * affected, the parent will not paint. |
| * </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> |
| */ |
| public void layout () { |
| checkWidget (); |
| layout (true); |
| } |
| |
| /** |
| * If the receiver has a layout, asks the layout to <em>lay out</em> |
| * (that is, set the size and location of) the receiver's children. |
| * If the argument is <code>true</code> the layout must not rely |
| * on any information it has cached about the immediate children. If it |
| * is <code>false</code> the layout may (potentially) optimize the |
| * work it is doing by assuming that none of the receiver's |
| * children has changed state since the last layout. |
| * If the receiver does not have a layout, do nothing. |
| * <p> |
| * If a child is resized as a result of a call to layout, the |
| * resize event will invoke the layout of the child. The layout |
| * will cascade down through all child widgets in the receiver's widget |
| * tree until a child is encountered that does not resize. Note that |
| * a layout due to a resize will not flush any cached information |
| * (same as <code>layout(false)</code>). |
| * </p> |
| * <p> |
| * Note: Layout is different from painting. If a child is |
| * moved or resized such that an area in the parent is |
| * exposed, then the parent will paint. If no child is |
| * affected, the parent will not paint. |
| * </p> |
| * |
| * @param changed <code>true</code> if the layout must flush its caches, 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> |
| */ |
| public void layout (boolean changed) { |
| checkWidget (); |
| if (layout == null) return; |
| layout (changed, false); |
| } |
| |
| /** |
| * If the receiver has a layout, asks the layout to <em>lay out</em> |
| * (that is, set the size and location of) the receiver's children. |
| * If the changed argument is <code>true</code> the layout must not rely |
| * on any information it has cached about its children. If it |
| * is <code>false</code> the layout may (potentially) optimize the |
| * work it is doing by assuming that none of the receiver's |
| * children has changed state since the last layout. |
| * If the all argument is <code>true</code> the layout will cascade down |
| * through all child widgets in the receiver's widget tree, regardless of |
| * whether the child has changed size. The changed argument is applied to |
| * all layouts. If the all argument is <code>false</code>, the layout will |
| * <em>not</em> cascade down through all child widgets in the receiver's widget |
| * tree. However, if a child is resized as a result of a call to layout, the |
| * resize event will invoke the layout of the child. Note that |
| * a layout due to a resize will not flush any cached information |
| * (same as <code>layout(false)</code>). |
| * </p> |
| * <p> |
| * Note: Layout is different from painting. If a child is |
| * moved or resized such that an area in the parent is |
| * exposed, then the parent will paint. If no child is |
| * affected, the parent will not paint. |
| * </p> |
| * |
| * @param changed <code>true</code> if the layout must flush its caches, and <code>false</code> otherwise |
| * @param all <code>true</code> if all children in the receiver's widget tree should be laid out, 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> |
| * |
| * @since 3.1 |
| */ |
| public void layout (boolean changed, boolean all) { |
| checkWidget (); |
| if (layout == null && !all) return; |
| markLayout (changed, all); |
| updateLayout (all); |
| } |
| |
| /** |
| * Forces a lay out (that is, sets the size and location) of all widgets that |
| * are in the parent hierarchy of the changed control up to and including the |
| * receiver. The layouts in the hierarchy must not rely on any information |
| * cached about the changed control or any of its ancestors. The layout may |
| * (potentially) optimize the work it is doing by assuming that none of the |
| * peers of the changed control have changed state since the last layout. |
| * If an ancestor does not have a layout, skip it. |
| * <p> |
| * Note: Layout is different from painting. If a child is |
| * moved or resized such that an area in the parent is |
| * exposed, then the parent will paint. If no child is |
| * affected, the parent will not paint. |
| * </p> |
| * |
| * @param changed a control that has had a state change which requires a recalculation of its size |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the changed array is null any of its controls are null or have been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if any control in changed is not in the widget tree of the receiver</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 3.1 |
| */ |
| public void layout (Control [] changed) { |
| checkWidget (); |
| if (changed == null) error (SWT.ERROR_INVALID_ARGUMENT); |
| layout (changed, SWT.NONE); |
| } |
| |
| /** |
| * Forces a lay out (that is, sets the size and location) of all widgets that |
| * are in the parent hierarchy of the changed control up to and including the |
| * receiver. |
| * <p> |
| * The parameter <code>flags</code> may be a combination of: |
| * <dl> |
| * <dt><b>SWT.ALL</b></dt> |
| * <dd>all children in the receiver's widget tree should be laid out</dd> |
| * <dt><b>SWT.CHANGED</b></dt> |
| * <dd>the layout must flush its caches</dd> |
| * <dt><b>SWT.DEFER</b></dt> |
| * <dd>layout will be deferred</dd> |
| * </dl> |
| * </p> |
| * <p> |
| * When the <code>changed</code> array is specified, the flags <code>SWT.ALL</code> |
| * and <code>SWT.CHANGED</code> have no effect. In this case, the layouts in the |
| * hierarchy must not rely on any information cached about the changed control or |
| * any of its ancestors. The layout may (potentially) optimize the |
| * work it is doing by assuming that none of the peers of the changed |
| * control have changed state since the last layout. |
| * If an ancestor does not have a layout, skip it. |
| * </p> |
| * <p> |
| * When the <code>changed</code> array is not specified, the flag <code>SWT.ALL</code> |
| * indicates that the whole widget tree should be laid out. And the flag |
| * <code>SWT.CHANGED</code> indicates that the layouts should flush any cached |
| * information for all controls that are laid out. |
| * </p> |
| * <p> |
| * The <code>SWT.DEFER</code> flag always causes the layout to be deferred by |
| * calling <code>Composite.setLayoutDeferred(true)</code> and scheduling a call |
| * to <code>Composite.setLayoutDeferred(false)</code>, which will happen when |
| * appropriate (usually before the next event is handled). When this flag is set, |
| * the application should not call <code>Composite.setLayoutDeferred(boolean)</code>. |
| * </p> |
| * <p> |
| * Note: Layout is different from painting. If a child is |
| * moved or resized such that an area in the parent is |
| * exposed, then the parent will paint. If no child is |
| * affected, the parent will not paint. |
| * </p> |
| * |
| * @param changed a control that has had a state change which requires a recalculation of its size |
| * @param flags the flags specifying how the layout should happen |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if any of the controls in changed is null or has been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if any control in changed is not in the widget tree of the receiver</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 void layout (Control [] changed, int flags) { |
| checkWidget (); |
| if (changed != null) { |
| for (int i=0; i<changed.length; i++) { |
| Control control = changed [i]; |
| if (control == null) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| boolean ancestor = false; |
| Composite composite = control.parent; |
| while (composite != null) { |
| ancestor = composite == this; |
| if (ancestor) break; |
| composite = composite.parent; |
| } |
| if (!ancestor) error (SWT.ERROR_INVALID_PARENT); |
| } |
| int updateCount = 0; |
| Composite [] update = new Composite [16]; |
| for (int i=0; i<changed.length; i++) { |
| Control child = changed [i]; |
| Composite composite = child.parent; |
| while (child != this) { |
| if (composite.layout != null) { |
| composite.state |= LAYOUT_NEEDED; |
| if (!composite.layout.flushCache (child)) { |
| composite.state |= LAYOUT_CHANGED; |
| } |
| } |
| if (updateCount == update.length) { |
| Composite [] newUpdate = new Composite [update.length + 16]; |
| System.arraycopy (update, 0, newUpdate, 0, update.length); |
| update = newUpdate; |
| } |
| child = update [updateCount++] = composite; |
| composite = child.parent; |
| } |
| } |
| if ((flags & SWT.DEFER) != 0) { |
| setLayoutDeferred (true); |
| display.addLayoutDeferred (this); |
| } |
| for (int i=updateCount-1; i>=0; i--) { |
| update [i].updateLayout (false); |
| } |
| } else { |
| if (layout == null && (flags & SWT.ALL) == 0) return; |
| markLayout ((flags & SWT.CHANGED) != 0, (flags & SWT.ALL) != 0); |
| if ((flags & SWT.DEFER) != 0) { |
| setLayoutDeferred (true); |
| display.addLayoutDeferred (this); |
| } |
| updateLayout ((flags & SWT.ALL) != 0); |
| } |
| } |
| |
| @Override |
| void markLayout (boolean changed, boolean all) { |
| if (layout != null) { |
| state |= LAYOUT_NEEDED; |
| if (changed) state |= LAYOUT_CHANGED; |
| } |
| if (all) { |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| children [i].markLayout (changed, all); |
| } |
| } |
| } |
| |
| void moveAbove (long /*int*/ child, long /*int*/ sibling) { |
| if (child == sibling) return; |
| long /*int*/ parentHandle = parentingHandle (); |
| if (OS.GTK3) { |
| OS.swt_fixed_restack (parentHandle, child, sibling, true); |
| return; |
| } |
| GtkFixed fixed = new GtkFixed (); |
| OS.memmove (fixed, parentHandle); |
| long /*int*/ children = fixed.children; |
| if (children == 0) return; |
| long /*int*/ [] data = new long /*int*/ [1]; |
| long /*int*/ [] widget = new long /*int*/ [1]; |
| long /*int*/ childData = 0, childLink = 0, siblingLink = 0, temp = children; |
| while (temp != 0) { |
| OS.memmove (data, temp, OS.PTR_SIZEOF); |
| OS.memmove (widget, data [0], OS.PTR_SIZEOF); |
| if (child == widget [0]) { |
| childLink = temp; |
| childData = data [0]; |
| } else if (sibling == widget [0]) { |
| siblingLink = temp; |
| } |
| if (childData != 0 && (sibling == 0 || siblingLink != 0)) break; |
| temp = OS.g_list_next (temp); |
| } |
| children = OS.g_list_remove_link (children, childLink); |
| if (siblingLink == 0 || OS.g_list_previous (siblingLink) == 0) { |
| OS.g_list_free_1 (childLink); |
| children = OS.g_list_prepend (children, childData); |
| } else { |
| temp = OS.g_list_previous (siblingLink); |
| OS.g_list_set_previous (childLink, temp); |
| OS.g_list_set_next (temp, childLink); |
| OS.g_list_set_next (childLink, siblingLink); |
| OS.g_list_set_previous (siblingLink, childLink); |
| } |
| fixed.children = children; |
| OS.memmove (parentHandle, fixed); |
| } |
| |
| void moveBelow (long /*int*/ child, long /*int*/ sibling) { |
| if (child == sibling) return; |
| long /*int*/ parentHandle = parentingHandle (); |
| if (sibling == 0 && parentHandle == fixedHandle) { |
| moveAbove (child, scrolledHandle != 0 ? scrolledHandle : handle); |
| return; |
| } |
| if (OS.GTK3) { |
| OS.swt_fixed_restack (parentHandle, child, sibling, false); |
| return; |
| } |
| GtkFixed fixed = new GtkFixed (); |
| OS.memmove (fixed, parentHandle); |
| long /*int*/ children = fixed.children; |
| if (children == 0) return; |
| long /*int*/ [] data = new long /*int*/ [1]; |
| long /*int*/ [] widget = new long /*int*/ [1]; |
| long /*int*/ childData = 0, childLink = 0, siblingLink = 0, temp = children; |
| while (temp != 0) { |
| OS.memmove (data, temp, OS.PTR_SIZEOF); |
| OS.memmove (widget, data [0], OS.PTR_SIZEOF); |
| if (child == widget [0]) { |
| childLink = temp; |
| childData = data [0]; |
| } else if (sibling == widget [0]) { |
| siblingLink = temp; |
| } |
| if (childData != 0 && (sibling == 0 || siblingLink != 0)) break; |
| temp = OS.g_list_next (temp); |
| } |
| children = OS.g_list_remove_link (children, childLink); |
| if (siblingLink == 0 || OS.g_list_next (siblingLink) == 0) { |
| OS.g_list_free_1 (childLink); |
| children = OS.g_list_append (children, childData); |
| } else { |
| temp = OS.g_list_next (siblingLink); |
| OS.g_list_set_next (childLink, temp); |
| OS.g_list_set_previous (temp, childLink); |
| OS.g_list_set_previous (childLink, siblingLink); |
| OS.g_list_set_next (siblingLink, childLink); |
| } |
| fixed.children = children; |
| OS.memmove (parentHandle, fixed); |
| } |
| |
| @Override |
| void moveChildren(int oldWidth) { |
| Control[] children = _getChildren (); |
| for (int i = 0; i < children.length; i++) { |
| Control child = children[i]; |
| long /*int*/ topHandle = child.topHandle (); |
| GtkAllocation allocation = new GtkAllocation(); |
| gtk_widget_get_allocation (topHandle, allocation); |
| int x = allocation.x; |
| int y = allocation.y; |
| int controlWidth = (child.state & ZERO_WIDTH) != 0 ? 0 : allocation.width; |
| if (oldWidth > 0) x = oldWidth - controlWidth - x; |
| int clientWidth = getClientWidth (); |
| x = clientWidth - controlWidth - x; |
| if (child.enableWindow != 0) { |
| OS.gdk_window_move (child.enableWindow, x, y); |
| } |
| child.moveHandle (x, y); |
| /* |
| * 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; |
| OS.gtk_widget_size_allocate (topHandle, allocation); |
| Control control = child.findBackgroundControl (); |
| if (control != null && control.backgroundImage != null) { |
| if (child.isVisible ()) child.redrawWidget (0, 0, 0, 0, true, true, true); |
| } |
| } |
| } |
| |
| Point minimumSize (int wHint, int hHint, boolean changed) { |
| Control [] children = _getChildren (); |
| Rectangle clientArea = getClientArea (); |
| int width = 0, height = 0; |
| for (int i=0; i<children.length; i++) { |
| Rectangle rect = children [i].getBounds (); |
| width = Math.max (width, rect.x - clientArea.x + rect.width); |
| height = Math.max (height, rect.y - clientArea.y + rect.height); |
| } |
| return new Point (width, height); |
| } |
| |
| long /*int*/ parentingHandle () { |
| if ((state & CANVAS) != 0) return handle; |
| return fixedHandle != 0 ? fixedHandle : handle; |
| } |
| |
| @Override |
| void printWidget (GC gc, long /*int*/ drawable, int depth, int x, int y) { |
| Region oldClip = new Region (gc.getDevice ()); |
| Region newClip = new Region (gc.getDevice ()); |
| gc.getClipping (oldClip); |
| Rectangle rect = getBounds (); |
| newClip.add (oldClip); |
| newClip.intersect (x, y, rect.width, rect.height); |
| gc.setClipping (newClip); |
| super.printWidget (gc, drawable, depth, x, y); |
| Rectangle clientRect = getClientArea (); |
| Point pt = display.map (this, parent, clientRect.x, clientRect.y); |
| clientRect.x = x + pt.x - rect.x; |
| clientRect.y = y + pt.y - rect.y; |
| newClip.intersect (clientRect); |
| gc.setClipping (newClip); |
| Control [] children = _getChildren (); |
| for (int i=children.length-1; i>=0; --i) { |
| Control child = children [i]; |
| if (child.getVisible ()) { |
| Point location = child.getLocation (); |
| child.printWidget (gc, drawable, depth, x + location.x, y + location.y); |
| } |
| } |
| gc.setClipping (oldClip); |
| oldClip.dispose (); |
| newClip.dispose (); |
| } |
| |
| @Override |
| void redrawChildren () { |
| super.redrawChildren (); |
| Control [] children = _getChildren (); |
| for (int i = 0; i < children.length; i++) { |
| Control child = children [i]; |
| if ((child.state & PARENT_BACKGROUND) != 0) { |
| child.redrawWidget (0, 0, 0, 0, true, false, true); |
| child.redrawChildren (); |
| } |
| } |
| } |
| |
| @Override |
| void register () { |
| super.register (); |
| if (socketHandle != 0) display.addWidget (socketHandle, this); |
| } |
| |
| @Override |
| void releaseChildren (boolean destroy) { |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| Control child = children [i]; |
| if (child != null && !child.isDisposed ()) { |
| child.release (false); |
| } |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| @Override |
| void releaseHandle () { |
| super.releaseHandle (); |
| socketHandle = embeddedHandle = 0; |
| } |
| |
| @Override |
| void releaseWidget () { |
| super.releaseWidget (); |
| if (imHandle != 0) OS.g_object_unref (imHandle); |
| imHandle = 0; |
| layout = null; |
| tabList = null; |
| } |
| |
| void removeControl (Control control) { |
| fixTabList (control); |
| } |
| |
| @Override |
| void reskinChildren (int flags) { |
| super.reskinChildren (flags); |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| Control child = children [i]; |
| if (child != null) child.reskin (flags); |
| } |
| } |
| |
| @Override |
| void resizeHandle (int width, int height) { |
| super.resizeHandle (width, height); |
| if (socketHandle != 0) { |
| if (OS.GTK3) { |
| OS.swt_fixed_resize (handle, socketHandle, width, height); |
| } else { |
| OS.gtk_widget_set_size_request (socketHandle, width, height); |
| } |
| } |
| } |
| |
| /** |
| * Sets the background drawing mode to the argument which should |
| * be one of the following constants defined in class <code>SWT</code>: |
| * <code>INHERIT_NONE</code>, <code>INHERIT_DEFAULT</code>, |
| * <code>INHERIT_FORCE</code>. |
| * |
| * @param mode the new background mode |
| * |
| * @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 |
| * |
| * @since 3.2 |
| */ |
| public void setBackgroundMode (int mode) { |
| checkWidget (); |
| backgroundMode = mode; |
| Control[] children = _getChildren (); |
| for (int i = 0; i < children.length; i++) { |
| children [i].updateBackgroundMode (); |
| } |
| } |
| |
| @Override |
| int setBounds (int x, int y, int width, int height, boolean move, boolean resize) { |
| int result = super.setBounds (x, y, width, height, move, resize); |
| if ((result & RESIZED) != 0 && layout != null) { |
| markLayout (false, false); |
| updateLayout (false); |
| } |
| return result; |
| } |
| |
| @Override |
| public boolean setFocus () { |
| checkWidget(); |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| Control child = children [i]; |
| if (child.getVisible () && child.setFocus ()) return true; |
| } |
| return super.setFocus (); |
| } |
| |
| /** |
| * Sets the layout which is associated with the receiver to be |
| * the argument which may be null. |
| * |
| * @param layout the receiver's new layout 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 setLayout (Layout layout) { |
| checkWidget(); |
| this.layout = layout; |
| } |
| |
| /** |
| * If the argument is <code>true</code>, causes subsequent layout |
| * operations in the receiver or any of its children to be ignored. |
| * No layout of any kind can occur in the receiver or any of its |
| * children until the flag is set to false. |
| * Layout operations that occurred while the flag was |
| * <code>true</code> are remembered and when the flag is set to |
| * <code>false</code>, the layout operations are performed in an |
| * optimized manner. Nested calls to this method are stacked. |
| * |
| * @param defer the new defer 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 #layout(boolean) |
| * @see #layout(Control[]) |
| * |
| * @since 3.1 |
| */ |
| public void setLayoutDeferred (boolean defer) { |
| checkWidget(); |
| if (!defer) { |
| if (--layoutCount == 0) { |
| if ((state & LAYOUT_CHILD) != 0 || (state & LAYOUT_NEEDED) != 0) { |
| updateLayout (true); |
| } |
| } |
| } else { |
| layoutCount++; |
| } |
| } |
| |
| @Override |
| void setOrientation (boolean create) { |
| super.setOrientation (create); |
| if (!create) { |
| int flags = SWT.RIGHT_TO_LEFT | SWT.LEFT_TO_RIGHT; |
| int orientation = style & flags; |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| children[i].setOrientation (orientation); |
| } |
| if (((style & SWT.RIGHT_TO_LEFT) != 0) != ((style & SWT.MIRRORED) != 0)) { |
| moveChildren (-1); |
| } |
| } |
| } |
| |
| @Override |
| boolean setScrollBarVisible (ScrollBar bar, boolean visible) { |
| boolean changed = super.setScrollBarVisible (bar, visible); |
| if (changed && layout != null) { |
| markLayout (false, false); |
| updateLayout (false); |
| } |
| return changed; |
| } |
| |
| @Override |
| boolean setTabGroupFocus (boolean next) { |
| if (isTabItem ()) return setTabItemFocus (next); |
| boolean takeFocus = (style & SWT.NO_FOCUS) == 0; |
| if ((state & CANVAS) != 0) takeFocus = hooksKeys (); |
| if (socketHandle != 0) takeFocus = true; |
| if (takeFocus && setTabItemFocus (next)) return true; |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| Control child = children [i]; |
| if (child.isTabItem () && child.setTabItemFocus (next)) return true; |
| } |
| return false; |
| } |
| |
| @Override |
| boolean setTabItemFocus (boolean next) { |
| if (!super.setTabItemFocus (next)) return false; |
| if (socketHandle != 0) { |
| int direction = next ? OS.GTK_DIR_TAB_FORWARD : OS.GTK_DIR_TAB_BACKWARD; |
| OS.GTK_WIDGET_UNSET_FLAGS (socketHandle, OS.GTK_HAS_FOCUS); |
| OS.gtk_widget_child_focus (socketHandle, direction); |
| OS.GTK_WIDGET_SET_FLAGS (socketHandle, OS.GTK_HAS_FOCUS); |
| } |
| return true; |
| } |
| |
| /** |
| * Sets the tabbing order for the specified controls to |
| * match the order that they occur in the argument list. |
| * |
| * @param tabList the ordered list of controls representing the tab order or null |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if a widget in the tabList is null or has been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if widget in the tabList is not in the same widget tree</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 setTabList (Control [] tabList) { |
| checkWidget (); |
| if (tabList != null) { |
| for (int i=0; i<tabList.length; i++) { |
| Control control = tabList [i]; |
| if (control == null) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (control.parent != this) error (SWT.ERROR_INVALID_PARENT); |
| } |
| Control [] newList = new Control [tabList.length]; |
| System.arraycopy (tabList, 0, newList, 0, tabList.length); |
| tabList = newList; |
| } |
| this.tabList = tabList; |
| } |
| |
| @Override |
| void showWidget () { |
| super.showWidget (); |
| if (socketHandle != 0) { |
| OS.gtk_widget_show (socketHandle); |
| embeddedHandle = OS.gtk_socket_get_id (socketHandle); |
| } |
| if (scrolledHandle == 0) fixStyle (handle); |
| } |
| |
| @Override |
| boolean checkSubwindow () { |
| return (state & CHECK_SUBWINDOW) != 0; |
| } |
| |
| @Override |
| boolean translateMnemonic (Event event, Control control) { |
| if (super.translateMnemonic (event, control)) return true; |
| if (control != null) { |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| Control child = children [i]; |
| if (child.translateMnemonic (event, control)) return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| int traversalCode(int key, GdkEventKey event) { |
| if ((state & CANVAS) != 0) { |
| if ((style & SWT.NO_FOCUS) != 0) return 0; |
| if (hooksKeys ()) return 0; |
| } |
| return super.traversalCode (key, event); |
| } |
| |
| @Override |
| boolean translateTraversal (GdkEventKey keyEvent) { |
| if (socketHandle != 0) return false; |
| return super.translateTraversal (keyEvent); |
| } |
| |
| @Override |
| void updateBackgroundMode () { |
| super.updateBackgroundMode (); |
| Control [] children = _getChildren (); |
| for (int i = 0; i < children.length; i++) { |
| children [i].updateBackgroundMode (); |
| } |
| } |
| |
| @Override |
| void updateLayout (boolean all) { |
| Composite parent = findDeferredControl (); |
| if (parent != null) { |
| parent.state |= LAYOUT_CHILD; |
| return; |
| } |
| if ((state & LAYOUT_NEEDED) != 0) { |
| boolean changed = (state & LAYOUT_CHANGED) != 0; |
| state &= ~(LAYOUT_NEEDED | LAYOUT_CHANGED); |
| display.runSkin(); |
| layout.layout (this, changed); |
| } |
| if (all) { |
| state &= ~LAYOUT_CHILD; |
| Control [] children = _getChildren (); |
| for (int i=0; i<children.length; i++) { |
| children [i].updateLayout (all); |
| } |
| } |
| } |
| } |