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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/Composite.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/Composite.java | 1303 |
1 files changed, 0 insertions, 1303 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/Composite.java b/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/Composite.java deleted file mode 100644 index 736db3e62f..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/Composite.java +++ /dev/null @@ -1,1303 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2008 IBM Corporation and others. - * Portion Copyright (c) 2009-2010 compeople AG (http://www.compeople.de). - * 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 - * Compeople AG - QtJambi/Qt based implementation for Windows/Mac OS X/Linux - *******************************************************************************/ -package org.eclipse.swt.widgets; - -import java.util.Collection; -import java.util.LinkedList; - -import com.trolltech.qt.core.QObject; -import com.trolltech.qt.core.QPoint; -import com.trolltech.qt.core.Qt.FocusReason; -import com.trolltech.qt.gui.QLabel; -import com.trolltech.qt.gui.QMouseEvent; -import com.trolltech.qt.gui.QResizeEvent; -import com.trolltech.qt.gui.QScrollArea; -import com.trolltech.qt.gui.QWidget; -import com.trolltech.qt.gui.QPalette.ColorRole; - -import org.eclipse.swt.SWT; -import org.eclipse.swt.SWTException; -import org.eclipse.swt.graphics.Font; -import org.eclipse.swt.graphics.GC; -import org.eclipse.swt.graphics.Point; -import org.eclipse.swt.graphics.Rectangle; - -/** - * 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 { - private Layout layout; - private Control[] tabList; - protected int layoutCount; - private int backgroundMode = SWT.INHERIT_NONE; - - /** - * Prevents uninitialized instances from being created outside the package. - */ - Composite() { - } - - /** - * 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 Widget#getStyle - */ - public Composite(Composite parent, int style) { - super(parent, style); - } - - @Override - QWidget createQWidget(int style) { - QWidget widget = super.createQWidget(style); - state |= CANVAS; - if ((style & (SWT.H_SCROLL | SWT.V_SCROLL)) == 0) { - state |= THEME_BACKGROUND; - } - if ((style & SWT.TRANSPARENT) != 0) { - System.out.println("TODO: handle SWT.TRANSPARENT"); //$NON-NLS-1$ - } - return widget; - } - - protected void updateAutoFillBackground() { - // if ((style & SWT.NO_BACKGROUND) == 0) { - // getQMasterWidget().setAutoFillBackground(true); - // } else { - // getQMasterWidget().setAutoFillBackground(false); - // System.out.println(this + " no bg"); - // } - } - - protected boolean noBackground() { - return (style & SWT.NO_BACKGROUND) == 1; - } - - @Override - protected void updateBackground() { - if ((state & PARENT_BACKGROUND) == 0) { - updateAutoFillBackground(); - applyBackgroundColor(getDefaultBackgroundColor()); - } else { - super.updateBackground(); - } - } - - @Override - protected ColorRole[] getBackgroundColorRoles() { - if (backgroundMode == SWT.INHERIT_FORCE) { - return super.getBackgroundColorRoles(); - } else { - return new ColorRole[] { ColorRole.Window }; - } - } - - void addQChild(Control control) { - control.getQMasterWidget().setParent(getQWidget()); - } - - 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 - protected void checkSubclass() { - /* Do nothing - Subclassing is allowed */ - } - - @Override - Control[] computeTabList() { - Control 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]; - Control[] childList = child.computeTabList(); - if (childList.length != 0) { - Control[] newResult = new Control[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 - public Point computeSize(int wHint, int hHint, boolean changed) { - checkWidget(); - Point size; - if ((state & CANVAS) != 0) { - if (layout != null) { - if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) { - changed |= (state & LAYOUT_CHANGED) != 0; - state &= ~LAYOUT_CHANGED; - size = layout.computeSize(this, wHint, hHint, 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 && wHint > 0) { - size.x = wHint; - } - if (hHint != SWT.DEFAULT && hHint > 0) { - size.y = hHint; - } - Rectangle trim = computeTrim(0, 0, size.x, size.y); - return new Point(trim.width, trim.height); - } - return super.computeSize(wHint, hHint, changed); - - } - - @Override - boolean isMirrored() { - return (style & SWT.MIRRORED) != 0; - } - - /** - * Copies a rectangular area of the receiver at the specified position using - * the gc. - * - * @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 - * - * @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> - */ - /* public */void copyArea(GC gc, int x, int y, int width, int height) { - checkWidget(); - if (gc == null) { - error(SWT.ERROR_NULL_ARGUMENT); - } - if (gc.isDisposed()) { - error(SWT.ERROR_INVALID_ARGUMENT); - } - throw new UnsupportedOperationException("not yet implemented"); //$NON-NLS-1$ - } - - protected 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); - } - } - - 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; - } - - /** - * 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>INHERTIT_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(); - } - - Control[] _getChildren() { - Collection<QObject> qtChildren = getQWidget().children(); - int count = qtChildren.size(); - if (count == 0) { - return new Control[0]; - } - LinkedList<Control> children = new LinkedList<Control>(); - for (QObject qObj : qtChildren) { - Widget widget = display.findControl(qObj); - if (widget != null && widget != this) { - if (widget instanceof Control && !(widget instanceof Shell)) { - children.addFirst((Control) widget); - } - } - } - return children.toArray(new Control[children.size()]); - } - - int getChildrenCount() { - return getQWidget().children().size(); - } - - /** - * 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; - } - - /** - * 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; - } - - boolean hooksKeys() { - return hooks(SWT.KeyDown) || hooks(SWT.KeyUp); - } - - /** - * 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; - } - - /** - * 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; - } - - /** - * 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); - } - - @Override - protected void updateLayout() { - layout(true, 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); - } - 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; - } - } - for (int i = updateCount - 1; i >= 0; i--) { - update[i].updateLayout(false); - } - } - - @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); - } - } - } - - 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); - } - - @Override - void redrawChildren() { - Control[] children = _getChildren(); - for (int i = 0; i < children.length; i++) { - children[i]._redraw(); - } - } - - @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 releaseWidget() { - super.releaseWidget(); - layout = null; - tabList = null; - } - - void removeControl(Control control) { - control.getQMasterWidget().setParent(null); - fixTabList(control); - resizeChildren(); - } - - private void resizeChildren() { - if (getQWidget() == null) { - return; - } - for (QObject child : getQWidget().children()) { - if (child.isWidgetType()) { - ((QWidget) child).updateGeometry(); - } - } - } - - /** - * 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(); - if (backgroundMode == mode) { - return; - } - backgroundMode = mode; - Control[] children = _getChildren(); - for (int i = 0; i < children.length; i++) { - children[i].updateBackgroundMode(); - } - } - - @Override - protected void setBounds(int x, int y, int width, int height, boolean move, boolean resize) { - if ((state & CANVAS) != 0) { - state &= ~(RESIZE_OCCURRED | MOVE_OCCURRED); - state |= RESIZE_DEFERRED | MOVE_DEFERRED; - } - super.setBounds(x, y, width, height, move, resize); - if ((state & CANVAS) != 0) { - boolean wasResized = (state & RESIZE_OCCURRED) != 0; - state &= ~(RESIZE_DEFERRED | MOVE_DEFERRED); - if (wasResized && layout != null) { - markLayout(false, false); - updateLayout(false); - } - } - } - - @Override - public boolean setFocus() { - checkWidget(); - return setFocus(FocusReason.OtherFocusReason); - // Control[] children = _getChildren(); - // for (int i = 0; i < children.length; i++) { - // Control child = children[i]; - // if (child.setRadioFocus(false)) - // return true; - // } - // for (int i = 0; i < children.length; i++) { - // Control child = children[i]; - // if (child.setFocus()) - // return true; - // } - // return super.setFocus(); - } - - @Override - protected boolean setFocus(FocusReason focusReason) { - Control[] children = _getChildren(); - for (int i = 0; i < children.length; i++) { - Control child = children[i]; - if (child.getVisible() && child.setFocus(focusReason)) { - return true; - } - } - return super.setFocus(focusReason); - } - - /** - * 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++; - } - } - - /** - * 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 - boolean setTabGroupFocus() { - if (isTabItem()) { - return setTabItemFocus(); - } - boolean takeFocus = (style & SWT.NO_FOCUS) == 0; - if ((state & CANVAS) != 0) { - takeFocus = hooksKeys(); - if ((style & SWT.EMBEDDED) != 0) { - takeFocus = true; - } - } - if (takeFocus && setTabItemFocus()) { - return true; - } - Control[] children = _getChildren(); - for (int i = 0; i < children.length; i++) { - Control child = children[i]; - if (child.isTabItem() && child.setRadioFocus(true)) { - return true; - } - } - for (int i = 0; i < children.length; i++) { - Control child = children[i]; - if (child.isTabItem() && !child.isTabGroup() && child.setTabItemFocus()) { - return true; - } - } - return false; - } - - @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 - void updateBackgroundColor() { - // if (noBackground()) { - // return; - // } - super.updateBackgroundColor(); - for (Control child : _getChildren()) { - if ((child.state & PARENT_BACKGROUND) != 0) { - child.updateBackgroundColor(); - } - } - } - - @Override - void updateBackgroundImage() { - // if (noBackground()) { - // return; - // } - super.updateBackgroundImage(); - for (Control child : _getChildren()) { - if ((child.state & PARENT_BACKGROUND) != 0) { - child.updateBackgroundImage(); - } - } - } - - @Override - void updateBackgroundMode() { - super.updateBackgroundMode(); - for (Control child : _getChildren()) { - child.updateBackgroundMode(); - } - } - - @Override - void updateFont(Font oldFont, Font newFont) { - super.updateFont(oldFont, newFont); - Control[] children = _getChildren(); - for (int i = 0; i < children.length; i++) { - Control control = children[i]; - if (!control.isDisposed()) { - control.updateFont(oldFont, newFont); - } - } - } - - @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); - if (layout != null) { - layout.layout(this, changed); - } - resizeChildren(); - } - if (all) { - state &= ~LAYOUT_CHILD; - Control[] children = _getChildren(); - for (int i = 0; i < children.length; i++) { - children[i].updateLayout(all); - } - } - } - - @Override - protected void _setVisible(QWidget widget, boolean visible) { - findChildren(); - boolean oldVisibility = getQMasterWidget().isVisible(); - super._setVisible(widget, visible); - if (getQMasterWidget().isVisible() != oldVisibility && layout != null) { - markLayout(true, true); - updateLayout(true); - } - } - - // TODO sma@2010-02-08 Links contain HTML escape sequences and therefore "&". - // Removing it breaks the HTML. Can Links have mnemonics? - private void findChildren() { - for (Control child : getChildren()) { - if (!(child instanceof Link) && child.getQWidget() instanceof QLabel - && ((QLabel) child.getQWidget()).text().contains("&")) { //$NON-NLS-1$ - handleMnemonic(child.getQWidget()); - } else if (child instanceof Composite) { - ((Composite) child).findChildren(); - } - } - } - - private void handleMnemonic(QWidget qwidget) { - QLabel myLabel = (QLabel) qwidget; - boolean foundBuddy = false; - java.util.List<QObject> children = myLabel.parent().children(); - for (int i = 0; i < children.size() - 1; i++) { - if (children.get(i).equals(myLabel)) { - // search for a suitable buddy - for (int k = i + 1; k < children.size(); k++) { - QObject neighbour = children.get(k); - if (neighbour != null && !(neighbour instanceof QLabel) && !(neighbour instanceof QScrollArea)) { - myLabel.setBuddy((QWidget) neighbour); - foundBuddy = true; - break; - } - } - } - - } - /* - * If there is no buddy to get the mnemonic, the "&" is removed from the - * string. In SWT/Win32 the character will remain underlined without any - * function, but in SWT/Qt this is not possible. - */ - if (!foundBuddy) { - myLabel.setText(myLabel.text().replace("&", "")); //$NON-NLS-1$ //$NON-NLS-2$ - } - } - - @Override - public boolean qtResizeEvent(QObject source, QResizeEvent resizeEvent) { - if (isDisposed()) { - return true; - } - if (isMirrored()) { - int newWidth = resizeEvent.size().width(); - int oldWidth = resizeEvent.oldSize().width(); - final int dx = newWidth - oldWidth; - if (dx != 0) { - Control[] children = _getChildren(); - for (int i = 0; i < children.length; ++i) { - Control child = children[i]; - if (!child.isDisposed()) { - QWidget qtControl = child.getQMasterWidget(); - QPoint pos = qtControl.pos(); - qtControl.move(pos.x() + dx, pos.y()); - } - } - } - } - super.qtResizeEvent(source, resizeEvent); - if (layout != null) { - markLayout(false, false); - updateLayout(false); - } - return false; - } - - @Override - public boolean qtMouseButtonPressEvent(QObject source, QMouseEvent mouseEvent) { - if (source == getQWidget()) { - boolean ret = super.qtMouseButtonPressEvent(source, mouseEvent); - if ((this.state & CANVAS) != 0) { - if ((style & SWT.NO_FOCUS) == 0 && hooksKeys()) { - Control[] children = getChildren(); - if (children == null || children.length == 0) { - setFocus(FocusReason.OtherFocusReason); - } - } - } - return ret; - } - return false; - } - - @Override - public boolean qtMouseEnterEvent(Object source) { - if (source == getQMasterWidget()) { - sendEvent(SWT.MouseEnter); - } - return false; - } - - @Override - public boolean qtMouseLeaveEvent(Object source) { - if (source == getQMasterWidget()) { - sendEvent(SWT.MouseExit); - } - return false; - } - -} |