--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/eswt_qt/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/Shell.java Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,1131 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * Portion Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+ * 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
+ * Nokia Corporation - Qt implementation
+ *******************************************************************************/
+package org.eclipse.swt.widgets;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ShellListener;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.internal.qt.OS;
+import org.eclipse.swt.internal.qt.WidgetState;
+import org.eclipse.swt.internal.qt.graphics.WindowSurface;
+
+/**
+ * Instances of this class represent the "windows"
+ * which the desktop or "window manager" is managing.
+ * Instances that do not have a parent (that is, they
+ * are built using the constructor, which takes a
+ * <code>Display</code> as the argument) are described
+ * as <em>top level</em> shells. Instances that do have
+ * a parent are described as <em>secondary</em> or
+ * <em>dialog</em> shells.
+ * <p>
+ * Instances are always displayed in one of the maximized,
+ * minimized or normal states:
+ * <ul>
+ * <li>
+ * When an instance is marked as <em>maximized</em>, the
+ * window manager will typically resize it to fill the
+ * entire visible area of the display, and the instance
+ * is usually put in a state where it can not be resized
+ * (even if it has style <code>RESIZE</code>) until it is
+ * no longer maximized.
+ * </li><li>
+ * When an instance is in the <em>normal</em> state (neither
+ * maximized or minimized), its appearance is controlled by
+ * the style constants which were specified when it was created
+ * and the restrictions of the window manager (see below).
+ * </li><li>
+ * When an instance has been marked as <em>minimized</em>,
+ * its contents (client area) will usually not be visible,
+ * and depending on the window manager, it may be
+ * "iconified" (that is, replaced on the desktop by a small
+ * simplified representation of itself), relocated to a
+ * distinguished area of the screen, or hidden. Combinations
+ * of these changes are also possible.
+ * </li>
+ * </ul>
+ * </p><p>
+ * The <em>modality</em> of an instance may be specified using
+ * style bits. The modality style bits are used to determine
+ * whether input is blocked for other shells on the display.
+ * The <code>PRIMARY_MODAL</code> style allows an instance to block
+ * input to its parent. The <code>APPLICATION_MODAL</code> style
+ * allows an instance to block input to every other shell in the
+ * display. The <code>SYSTEM_MODAL</code> style allows an instance
+ * to block input to all shells, including shells belonging to
+ * different applications.
+ * </p><p>
+ * Note: The styles supported by this class are treated
+ * as <em>HINT</em>s, since the window manager for the
+ * desktop on which the instance is visible has ultimate
+ * control over the appearance and behavior of decorations
+ * and modality. For example, some window managers only
+ * support resizable windows and will always assume the
+ * RESIZE style, even if it is not set. In addition, if a
+ * modality style is not supported, it is "upgraded" to a
+ * more restrictive modality style that is supported. For
+ * example, if <code>PRIMARY_MODAL</code> is not supported,
+ * it would be upgraded to <code>APPLICATION_MODAL</code>.
+ * A modality style may also be "downgraded" to a less
+ * restrictive style. For example, most operating systems
+ * no longer support <code>SYSTEM_MODAL</code> because
+ * it can freeze up the desktop, so this is typically
+ * downgraded to <code>APPLICATION_MODAL</code>.
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>BORDER, CLOSE, MIN, MAX, NO_TRIM, RESIZE, TITLE, ON_TOP, TOOL</dd>
+ * <dd>APPLICATION_MODAL, MODELESS, PRIMARY_MODAL, SYSTEM_MODAL</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>Activate, Close, Deactivate, Deiconify, Iconify</dd>
+ * </dl>
+ * Class <code>SWT</code> provides two "convenience constants"
+ * for the most commonly required style combinations:
+ * <dl>
+ * <dt><code>SHELL_TRIM</code></dt>
+ * <dd>
+ * the result of combining the constants which are required
+ * to produce a typical application top level shell: (that
+ * is, <code>CLOSE | TITLE | MIN | MAX | RESIZE</code>)
+ * </dd>
+ * <dt><code>DIALOG_TRIM</code></dt>
+ * <dd>
+ * the result of combining the constants which are required
+ * to produce a typical application dialog shell: (that
+ * is, <code>TITLE | CLOSE | BORDER</code>)
+ * </dd>
+ * </dl>
+ * </p>
+ * <p>
+ * Note: Only one of the styles APPLICATION_MODAL, MODELESS,
+ * PRIMARY_MODAL and SYSTEM_MODAL may be specified.
+ * </p><p>
+ * IMPORTANT: This class is not intended to be subclassed.
+ * </p>
+ *
+ * @see Decorations
+ * @see SWT
+ */
+public class Shell extends Decorations {
+
+/**
+ * Handle of the QMainWindow for a top-level Shell.
+ * For non top-level Shells this handle is zero.
+ */
+int mainWindowHandle;
+
+/**
+ * Handle of the QWidget that owns the window for a dialog Shell. For non-dialog
+ * Shells this handle is zero.
+ */
+int dialogWindowHandle;
+
+Rectangle defBounds;
+
+/**
+ * The WindowSurface wrapper for top level shells. Window surface
+ * provides access for Qt created draw surface.
+ */
+WindowSurface windowSurface;
+
+/**
+ * Constructs a new instance of this class. This is equivalent
+ * to calling <code>Shell((Display) null)</code>.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ */
+public Shell () {
+ this ((Display) null);
+}
+/**
+ * Constructs a new instance of this class given only the style
+ * value describing its behavior and appearance. This is equivalent
+ * to calling <code>Shell((Display) null, style)</code>.
+ * <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 style the style of control to construct
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see SWT#BORDER
+ * @see SWT#CLOSE
+ * @see SWT#MIN
+ * @see SWT#MAX
+ * @see SWT#RESIZE
+ * @see SWT#TITLE
+ * @see SWT#NO_TRIM
+ * @see SWT#SHELL_TRIM
+ * @see SWT#DIALOG_TRIM
+ * @see SWT#MODELESS
+ * @see SWT#PRIMARY_MODAL
+ * @see SWT#APPLICATION_MODAL
+ * @see SWT#SYSTEM_MODAL
+ */
+public Shell (int style) {
+ this ((Display) null, style);
+}
+
+/**
+ * Constructs a new instance of this class given only the display
+ * to create it on. It is created with style <code>SWT.SHELL_TRIM</code>.
+ * <p>
+ * Note: Currently, null can be passed in for the display argument.
+ * This has the effect of creating the shell on the currently active
+ * display if there is one. If there is no current display, the
+ * shell is created on a "default" display. <b>Passing in null as
+ * the display argument is not considered to be good coding style,
+ * and may not be supported in a future release of SWT.</b>
+ * </p>
+ *
+ * @param display the display to create the shell on
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ */
+public Shell (Display display) {
+ this (display, SWT.SHELL_TRIM);
+}
+/**
+ * Constructs a new instance of this class given the display
+ * to create it on 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><p>
+ * Note: Currently, null can be passed in for the display argument.
+ * This has the effect of creating the shell on the currently active
+ * display if there is one. If there is no current display, the
+ * shell is created on a "default" display. <b>Passing in null as
+ * the display argument is not considered to be good coding style,
+ * and may not be supported in a future release of SWT.</b>
+ * </p>
+ *
+ * @param display the display to create the shell on
+ * @param style the style of control to construct
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see SWT#BORDER
+ * @see SWT#CLOSE
+ * @see SWT#MIN
+ * @see SWT#MAX
+ * @see SWT#RESIZE
+ * @see SWT#TITLE
+ * @see SWT#NO_TRIM
+ * @see SWT#SHELL_TRIM
+ * @see SWT#DIALOG_TRIM
+ * @see SWT#MODELESS
+ * @see SWT#PRIMARY_MODAL
+ * @see SWT#APPLICATION_MODAL
+ * @see SWT#SYSTEM_MODAL
+ */
+public Shell (Display display, int style) {
+ this (display, null, style, null);
+}
+
+/**
+ * <p>
+ * <b>IMPORTANT:</b> This constructor is <em>not</em> part of the SWT
+ * public API. It should never be referenced from application code.
+ * </p>
+ */
+protected Shell (Display display, Shell parent, int style, Object packageProxy) {
+ super ();
+ checkSubclass ();
+ setPackageProxy(packageProxy);
+ if (display == null) display = Display.getCurrent ();
+ if (display == null) display = Display.getDefault ();
+ if (!display.isValidThread ()) {
+ error (SWT.ERROR_THREAD_INVALID_ACCESS);
+ }
+ if (parent != null && parent.isDisposed ()) {
+ error (SWT.ERROR_INVALID_ARGUMENT);
+ }
+ this.style = checkStyle (style, parent);
+ this.parent = parent;
+ this.display = display;
+ createWidget (0);
+}
+
+/**
+ * Constructs a new instance of this class given only its
+ * parent. It is created with style <code>SWT.DIALOG_TRIM</code>.
+ * <p>
+ * Note: Currently, null can be passed in for the parent.
+ * This has the effect of creating the shell on the currently active
+ * display if there is one. If there is no current display, the
+ * shell is created on a "default" display. <b>Passing in null as
+ * the parent is not considered to be good coding style,
+ * and may not be supported in a future release of SWT.</b>
+ * </p>
+ *
+ * @param parent a shell which will be the parent of the new instance
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ */
+public Shell (Shell parent) {
+ this (parent, SWT.DIALOG_TRIM);
+}
+
+/**
+ * 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><p>
+ * Note: Currently, null can be passed in for the parent.
+ * This has the effect of creating the shell on the currently active
+ * display if there is one. If there is no current display, the
+ * shell is created on a "default" display. <b>Passing in null as
+ * the parent is not considered to be good coding style,
+ * and may not be supported in a future release of SWT.</b>
+ * </p>
+ *
+ * @param parent a shell which will be the parent of the new instance
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see SWT#BORDER
+ * @see SWT#CLOSE
+ * @see SWT#MIN
+ * @see SWT#MAX
+ * @see SWT#RESIZE
+ * @see SWT#TITLE
+ * @see SWT#NO_TRIM
+ * @see SWT#SHELL_TRIM
+ * @see SWT#DIALOG_TRIM
+ * @see SWT#ON_TOP
+ * @see SWT#MODELESS
+ * @see SWT#PRIMARY_MODAL
+ * @see SWT#APPLICATION_MODAL
+ * @see SWT#SYSTEM_MODAL
+ */
+public Shell (Shell parent, int style) {
+ this (parent != null ? parent.display : null, parent, style, null);
+}
+
+final static int checkStyle (int style, Composite parent) {
+ style = Decorations.checkStyle (style, parent);
+ style &= ~SWT.TRANSPARENT;
+ if(OS.windowServer == OS.WS_SYMBIAN_S60) {
+ // Set the RESIZE flag to prevent fixing the size so that the
+ // always-maximized top-level Shell will be automatically resized
+ // when available space changes.
+ if (parent == null) {
+ style |= SWT.RESIZE;
+ }
+ }
+ int mask = SWT.SYSTEM_MODAL | SWT.APPLICATION_MODAL | SWT.PRIMARY_MODAL;
+ int bits = style & ~mask;
+ if ((style & SWT.SYSTEM_MODAL) != 0) return bits | SWT.SYSTEM_MODAL;
+ if ((style & SWT.APPLICATION_MODAL) != 0) return bits | SWT.APPLICATION_MODAL;
+ if ((style & SWT.PRIMARY_MODAL) != 0) return bits | SWT.PRIMARY_MODAL;
+ return bits;
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when operations are performed on the receiver,
+ * by sending the listener one of the messages defined in the
+ * <code>ShellListener</code> interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see ShellListener
+ * @see #removeShellListener
+ */
+public void addShellListener (ShellListener listener) {
+ checkWidget();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Close,typedListener);
+ addListener (SWT.Iconify,typedListener);
+ addListener (SWT.Deiconify,typedListener);
+ addListener (SWT.Activate, typedListener);
+ addListener (SWT.Deactivate, typedListener);
+}
+
+/**
+ * Requests that the window manager close the receiver in
+ * the same way it would be closed when the user clicks on
+ * the "close box" or performs some other platform specific
+ * key or mouse combination that indicates the window
+ * should be removed.
+ *
+ * @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#Close
+ * @see #dispose
+ */
+public void close () {
+ checkWidget ();
+ closeWidget ();
+}
+
+public Point computeSize (int wHint, int hHint, boolean changed) {
+ // On Symbian the top-level Shells are always maximized.
+ // They have no trim. No need to compute anything. Just return the size.
+ if(OS.windowServer == OS.WS_SYMBIAN_S60 && parent == null) {
+ return OS.QWidget_size(topHandle);
+ }
+
+ Point size = super.computeSize(wHint, hHint, changed);
+
+ if(OS.windowServer == OS.WS_X11) {
+ if((style & SWT.RESIZE) != 0) {
+ // Resizeable windows won't go smaller than this
+ if(size.x < 81) size.x = 81;
+ if(size.y < 100) size.y = 100;
+ } else if(willBeDecorated()) {
+ // Windows won't go smaller than their trim
+ size.x = Math.max(size.x, windowFrameTrim() * 2);
+ size.y = Math.max(size.y, windowFrameTrim() * 2);
+ }
+ }
+ return size;
+}
+
+/*
+ * On non-Symbian platform the Shell size is initially set to some nice
+ * looking default. On Symbian platform Qt implements automatic resizing for
+ * maximized widgets. Thus, top-level Shells are always maximized and it's
+ * prevented from the application to set their size freely.
+ */
+Point setInitialSize () {
+ Rectangle area = display.getClientArea();
+ if(OS.windowServer != OS.WS_SYMBIAN_S60) {
+ area.width /= 3;
+ area.height /= 3;
+ }
+ Point size = computeSize(area.width, area.height, true);
+ size.x -= windowFrameTrim() * 2;
+ size.y -= windowTitleTrim() + windowFrameTrim();
+ if(OS.windowServer == OS.WS_SYMBIAN_S60 && parent == null) {
+ setRestoreState(OS.QT_WINDOWMAXIMIZED, false);
+ } else {
+ OS.QWidget_resize(topHandle, size.x, size.y);
+ }
+ return size;
+}
+
+public Rectangle computeTrim (int x, int y, int width, int height) {
+ checkWidget();
+ Rectangle scrollableTrim = super.computeTrim (x, y, width, height);
+
+ // Normally window frame is learned on setVisible(true). If it has not been
+ // called then try to learn the window trim dimensions here.
+ learnTrim();
+
+ int leftTrim, rightTrim, topTrim, bottomTrim;
+ leftTrim = rightTrim = bottomTrim = windowFrameTrim();
+ topTrim = windowTitleTrim();
+
+ scrollableTrim.x -= leftTrim;
+ scrollableTrim.width += (leftTrim + rightTrim);
+ scrollableTrim.y -= topTrim;
+ scrollableTrim.height += (topTrim + bottomTrim);
+
+ return scrollableTrim;
+}
+
+boolean bypassWindowManager() {
+ return ((style & SWT.ON_TOP) != 0) && ((style & SWT.NO_FOCUS) != 0)
+ && ((style & SWT.NO_TRIM) != 0);
+}
+
+final int windowFlagsFromStyle() {
+ // Bypassing window manager won't work with dialog-flag. If that is desired
+ // then window-flag is used.
+ int flags = (parent == null || bypassWindowManager() ? OS.QT_WINDOWFLAGS_WINDOW
+ : OS.QT_WINDOWFLAGS_DIALOG);
+ flags |= OS.QT_WINDOWFLAGS_CUSTOMIZEWINDOWHINT;
+ if((style & SWT.CLOSE) != 0) flags |= OS.QT_WINDOWFLAGS_WINDOWSYSTEMMENUHINT |
+ OS.QT_WINDOWFLAGS_WINDOWCLOSEBUTTONHINT;
+ if((style & SWT.MIN) != 0) flags |= OS.QT_WINDOWFLAGS_WINDOWMINIMIZEBUTTONHINT;
+ if((style & SWT.MAX) != 0) flags |= OS.QT_WINDOWFLAGS_WINDOWMAXIMIZEBUTTONHINT;
+ if((style & SWT.NO_TRIM) != 0) flags |= OS.QT_WINDOWFLAGS_FRAMELESSWINDOWHINT;
+ if((style & SWT.TITLE) != 0) flags |= OS.QT_WINDOWFLAGS_WINDOWTITLEHINT;
+ if((style & SWT.ON_TOP) != 0) flags |= OS.QT_WINDOWFLAGS_WINDOWSTAYSONTOPHINT;
+
+ // Don't use tooltip flag on Symbian, it causes nothing to be focusable.
+ if(OS.windowServer != OS.WS_SYMBIAN_S60 && bypassWindowManager()) {
+ flags |= OS.QT_WINDOWFLAGS_TOOLTIP;
+ }
+
+ return flags;
+}
+
+void createHandle_pp (int index) {
+ if(parent == null) {
+ // Top-level Shell
+ topHandle = mainWindowHandle = OS.QMainWindow_new(0, windowFlagsFromStyle());
+ frameHandle = scrollAreaHandle = OS.QScrollArea_new(mainWindowHandle);
+ handle = OS.QAbstractScrollArea_viewPort(scrollAreaHandle);
+
+ // Scrollarea is the central widget of the QMainWindow. This
+ // connects it to the main window's layout.
+ // At least on X11 this call has a side effect that mainWindow can't
+ // be made very small anymore. The minimumSize still returns (0,0)
+ // though.
+ OS.QMainWindow_setCentralWidget(mainWindowHandle, scrollAreaHandle);
+ } else {
+ // Dialog Shell
+ topHandle = dialogWindowHandle = OS.QDialog_new(parent.handle, windowFlagsFromStyle());
+ frameHandle = scrollAreaHandle = OS.QScrollArea_new(dialogWindowHandle);
+ handle = OS.QAbstractScrollArea_viewPort(scrollAreaHandle);
+
+ // A QLayout is needed where menubar can be inserted.
+ // Dialog window takes ownership of the layout instance.
+ int layoutHandle = OS.QVBoxLayout_new(dialogWindowHandle);
+ OS.QLayout_addWidget(layoutHandle, scrollAreaHandle);
+ OS.QLayout_setContentsMargins(layoutHandle, 0, 0, 0, 0);
+ }
+
+ // To make getClientArea return correct location already before
+ // setVisible(true) move it to it's final position here.
+ OS.QWidget_move(handle, 0, 0);
+
+ // If no size is set Qt returns completely weird "pre-initial" values before
+ // the Shell is made visible.
+ Point size = setInitialSize();
+
+ defBounds = OS.QWidget_rect(topHandle);
+
+ // Set size constraints. See QLayout::SizeConstraint.
+ if((style & SWT.RESIZE) == 0) {
+ // Setting min/max sizes to the same value disables the resize handle in the
+ // window corner. There's no window style for this purpose.
+ OS.QWidget_setFixedSize(topHandle, size.x, size.y);
+ } else {
+ // If no-one has set size constraints then Qt will apply a default
+ // constraint. Prevent this or the Shell won't go very small.
+ int layoutHandle = OS.QWidget_layout(topHandle);
+ if(layoutHandle != 0) {
+ if(OS.QLayout_sizeConstraint(layoutHandle) == OS.QLAYOUT_SIZECONSTRAINT_SETDEFAULTCONSTRAINT)
+ OS.QLayout_setSizeConstraint(layoutHandle, OS.QLAYOUT_SIZECONSTRAINT_SETNOCONSTRAINT);
+ }
+ }
+
+ // Shell must not by default accept focus by clicking.
+ int policy = OS.QWidget_focusPolicy(topHandle) & ~OS.QT_FOCUSPOLICY_CLICKFOCUS;
+ OS.QWidget_setFocusPolicy(topHandle, policy);
+
+ // Stand-alone Composites, Shells, Canvases set the CANVAS flag
+ state |= WidgetState.HANDLE | WidgetState.CANVAS;
+}
+
+Composite findDeferredControl () {
+ return layoutCount > 0 ? this : null;
+}
+
+public boolean isEnabled () {
+ checkWidget ();
+ return getEnabled ();
+}
+
+boolean isParentMirrored() {
+ // Shells are positioned in Display coordinate system which is always LTR.
+ return false;
+}
+
+public boolean isVisible () {
+ checkWidget();
+ return getVisible ();
+}
+
+void register_pp () {
+ // Viewport & scroll area
+ super.register_pp ();
+ // Main window, if top-level
+ if(mainWindowHandle != 0) display.addWidget (mainWindowHandle, this);
+ // Dialog window, if a dialog Shell
+ if(dialogWindowHandle != 0) display.addWidget (dialogWindowHandle, this);
+}
+
+void releaseParent_pp () {
+ /* Do nothing */
+}
+
+/**
+ * Returns the receiver's alpha value. The alpha value
+ * is between 0 (transparent) and 255 (opaque).
+ *
+ * @return the alpha value
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public int getAlpha () {
+ checkWidget ();
+ double opacity = OS.QWidget_windowOpacity(topHandle);
+ return (int)(255*opacity);
+}
+
+public boolean getMaximized () {
+ checkWidget();
+ return !hasState(OS.QT_WINDOWFULLSCREEN) && super.getMaximized ();
+}
+
+/**
+ * Returns the receiver's input method editor mode. This
+ * will be the result of bitwise OR'ing together one or
+ * more of the following constants defined in class
+ * <code>SWT</code>:
+ * <code>NONE</code>, <code>ROMAN</code>, <code>DBCS</code>,
+ * <code>PHONETIC</code>, <code>NATIVE</code>, <code>ALPHA</code>.
+ *
+ * @return the IME 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
+ */
+public int getImeInputMode () {
+ checkWidget();
+ return SWT.NONE;
+}
+
+Shell _getShell () {
+ return this;
+}
+
+/**
+ * Returns an array containing all shells which are
+ * descendants of the receiver.
+ * <p>
+ * @return the dialog shells
+ *
+ * @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 Shell [] getShells () {
+ checkWidget();
+ int count = 0;
+ Shell [] shells = display.getShells ();
+ for (int i=0; i<shells.length; i++) {
+ Control shell = shells [i];
+ do {
+ shell = shell.getParent ();
+ } while (shell != null && shell != this);
+ if (shell == this) count++;
+ }
+ int index = 0;
+ Shell [] result = new Shell [count];
+ for (int i=0; i<shells.length; i++) {
+ Control shell = shells [i];
+ do {
+ shell = shell.getParent ();
+ } while (shell != null && shell != this);
+ if (shell == this) {
+ result [index++] = shells [i];
+ }
+ }
+ return result;
+}
+
+/**
+ * Moves the receiver to the top of the drawing order for
+ * the display on which it was created (so that all other
+ * shells on that display, which are not the receiver's
+ * children will be drawn behind it), marks it visible,
+ * sets the focus and asks the window manager to make the
+ * shell active.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see Control#moveAbove
+ * @see Control#setFocus
+ * @see Control#setVisible
+ * @see Display#getActiveShell
+ * @see Decorations#setDefaultButton(Button)
+ * @see Shell#setActive
+ * @see Shell#forceActive
+ */
+public void open () {
+ checkWidget ();
+ setVisible (true);
+ bringToTop (false);
+ if (isDisposed ()) return;
+ if (!restoreFocus () && !traverseGroup (true)) setFocus (OS.QT_OTHERFOCUSREASON);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when operations are performed on the receiver.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see ShellListener
+ * @see #addShellListener
+ */
+public void removeShellListener (ShellListener listener) {
+ checkWidget();
+ if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+ if (eventTable == null) return;
+ eventTable.unhook (SWT.Close, listener);
+ eventTable.unhook (SWT.Iconify,listener);
+ eventTable.unhook (SWT.Deiconify,listener);
+ eventTable.unhook (SWT.Activate, listener);
+ eventTable.unhook (SWT.Deactivate, listener);
+}
+
+/**
+ * If the receiver is visible, moves it to the top of the
+ * drawing order for the display on which it was created
+ * (so that all other shells on that display, which are not
+ * the receiver's children will be drawn behind it) and asks
+ * the window manager to make the shell active
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ * @see Control#moveAbove
+ * @see Control#setFocus
+ * @see Control#setVisible
+ * @see Display#getActiveShell
+ * @see Decorations#setDefaultButton(Button)
+ * @see Shell#open
+ * @see Shell#setActive
+ */
+public void setActive () {
+ checkWidget ();
+ bringToTop (false);
+
+ // Wait for active window to change unless the widget isn't visible.
+ // Then setActive won't do anything.
+ if(OS.windowServer == OS.WS_X11 && OS.QWidget_isVisible(topHandle)) {
+ waitXRequestComplete();
+ }
+}
+
+/**
+ * Sets the receiver's alpha value which must be
+ * between 0 (transparent) and 255 (opaque).
+ * <p>
+ * This operation requires the operating system's advanced
+ * widgets subsystem which may not be available on some
+ * platforms.
+ * </p>
+ * @param alpha the alpha value
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public void setAlpha (int alpha) {
+ checkWidget ();
+ if(alpha < 0 || alpha > 255) return;
+ OS.QWidget_setWindowOpacity(topHandle, ((double)alpha)/255);
+}
+
+public Point getSize() {
+ checkWidget();
+ Point size = OS.QWidget_size(topHandle);
+ size.x += windowFrameTrim() * 2;
+ size.y += windowFrameTrim() + windowTitleTrim();
+ return size;
+}
+
+public Rectangle getBounds() {
+ checkWidget();
+ Rectangle bounds = OS.QWidget_geometry(topHandle);
+ bounds.x -= windowFrameTrim();
+ bounds.y -= windowTitleTrim();
+ bounds.width += windowFrameTrim() * 2;
+ bounds.height += windowFrameTrim() + windowTitleTrim();
+ return bounds;
+}
+
+int setBounds (int x, int y, int width, int height, boolean move, boolean resize) {
+ // On Symbian platform top-level Shells are forced to maximized
+ if(OS.windowServer == OS.WS_SYMBIAN_S60 && parent == null) {
+ return 0;
+ }
+
+ if (hasState(OS.QT_WINDOWFULLSCREEN)) {
+ setRestoreState(OS.QT_WINDOWFULLSCREEN, true);
+ }
+
+ Rectangle geometry = OS.QWidget_geometry(topHandle);
+ int result = 0;
+ if(move) {
+ int oldX = geometry.x - windowFrameTrim();
+ int oldY = geometry.y - windowTitleTrim();
+ if(oldX != x || oldY != y) {
+ result |= WidgetState.MOVED;
+ }
+ }
+ if(resize) {
+ int oldW = geometry.width + windowFrameTrim() * 2;
+ int oldH = geometry.height + windowTitleTrim() + windowFrameTrim();
+ if(oldW != width || oldH != height) {
+ result |= WidgetState.RESIZED;
+ }
+ }
+ if((result & WidgetState.MOVED) != 0) {
+ int newX = x + windowFrameTrim();
+ int newY = y + windowTitleTrim();
+ OS.QWidget_setGeometry(topHandle, newX, newY, geometry.width, geometry.height);
+ }
+ if((result & WidgetState.RESIZED) != 0) {
+ int newW = width - windowFrameTrim() * 2;
+ int newH = height - (windowFrameTrim() + windowTitleTrim());
+
+ // If size has been fixed it needs to be temporarily unfixed
+ if((style & SWT.RESIZE) == 0) unlockSize();
+
+ OS.QWidget_resize(topHandle, newW, newH);
+
+ // Fix the new size if not resizeable
+ if((style & SWT.RESIZE) == 0) {
+ OS.QWidget_setFixedSize(topHandle, Math.max(0, newW),
+ Math.max(0, newH));
+ }
+ }
+ return result;
+}
+
+public Point getLocation() {
+ checkWidget();
+ Rectangle geometry = OS.QWidget_geometry(topHandle);
+ Point pos = new Point(geometry.x, geometry.y);
+ pos.x -= windowFrameTrim();
+ pos.y -= windowTitleTrim();
+ return pos;
+}
+
+public void setEnabled (boolean enabled) {
+ checkWidget ();
+ if (((state & WidgetState.DISABLED) == 0) == enabled) return;
+ super.setEnabled (enabled);
+ if (enabled && topHandle == OS.QApplication_activeWindow()) {
+ if (!restoreFocus ()) traverseGroup (true);
+ }
+}
+
+void enableWidget(boolean enabled) {
+ Control oldFocus = display._getFocusControl();
+ super.enableWidget(enabled);
+ if(!enabled) {
+ // All children were looped through and disabled by QWidget unless they
+ // were explicitly disabled. SWT behavior is not to disable the dialog
+ // Shells so we have to restore their states.
+ Shell shells[] = getShells();
+ for(int i = 0; i < shells.length; ++i) {
+ if(shells[i].parent == this) {
+ if(shells[i]._getEnabled()) {
+ OS.QWidget_setEnabled(shells[i].topHandle, true);
+ }
+ }
+ }
+ // Because dialog Shell might have been temporarily disabled the focus might
+ // have been lost and must be restored.
+ if(oldFocus != null) oldFocus.menuShell().restoreFocus();
+ }
+}
+
+/**
+ * Sets the input method editor mode to the argument which
+ * should be the result of bitwise OR'ing together one or more
+ * of the following constants defined in class <code>SWT</code>:
+ * <code>NONE</code>, <code>ROMAN</code>, <code>DBCS</code>,
+ * <code>PHONETIC</code>, <code>NATIVE</code>, <code>ALPHA</code>.
+ *
+ * @param mode the new IME 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
+ */
+public void setImeInputMode (int mode) {
+ checkWidget();
+}
+
+private final int modalityFromStyle() {
+ int modality = OS.QT_WINDOWMODALITY_NONMODAL;
+ if((style & SWT.SYSTEM_MODAL) != 0)
+ return OS.QT_WINDOWMODALITY_APPLICATIONMODAL;
+ if((style & SWT.APPLICATION_MODAL) != 0)
+ return OS.QT_WINDOWMODALITY_APPLICATIONMODAL;
+ if((style & SWT.PRIMARY_MODAL) != 0) {
+ return OS.QT_WINDOWMODALITY_APPLICATIONMODAL;
+ }
+ return modality;
+}
+
+public void setVisible (boolean visible) {
+ checkWidget();
+
+ int mask = SWT.PRIMARY_MODAL | SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL;
+ if ((style & mask) != 0) {
+ if (visible) {
+ display.setModalShell (this);
+ if ((style & (SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL)) != 0) {
+ display.setModalDialog (null);
+ }
+ Control control = display._getFocusControl();
+ if (control != null && !control.isActive()) {
+ bringToTop(false);
+ if (isDisposed()) return;
+ }
+ OS.QWidget_setWindowModality(topHandle, modalityFromStyle());
+ int mouseGrabber = OS.QWidget_mouseGrabber();
+ if(mouseGrabber != 0) {
+ OS.QWidget_releaseMouse(mouseGrabber);
+ }
+ } else {
+ display.clearModal (this);
+ }
+ } else {
+ updateModal ();
+ }
+
+ // This shell
+ super.setVisible(visible);
+ if(isDisposed()) return;
+
+ // Dialog shells.
+ // SWT behavior is that when a Shell gets setVisible(false) then dialog Shells
+ // after that have getVisible == isVisible == false.
+ Shell dialogShells[] = getShells();
+ for(int i = 0; i < dialogShells.length; ++i) {
+ Shell child = dialogShells[i];
+ if(child.isVisible() != visible) {
+ child.setVisible(visible);
+ if(isDisposed()) return;
+ }
+ }
+
+ // Ensure that the state is updated
+ if(OS.windowServer == OS.WS_X11) {
+ waitXRequestComplete();
+ }
+ if(isDisposed()) return;
+ learnTrim();
+}
+
+boolean traverseEscape () {
+ if (parent == null) return false;
+ if (!isVisible () || !isEnabled ()) return false;
+ close ();
+ return true;
+}
+
+void updateModal () {
+ // Nothing to do, the method is here so that modality logic can be similar
+ // across the platforms
+}
+
+void deregister_pp () {
+ super.deregister_pp ();
+ if(mainWindowHandle != 0) {
+ display.removeWidget(mainWindowHandle);
+ }
+ if(dialogWindowHandle != 0) {
+ display.removeWidget(dialogWindowHandle);
+ }
+}
+
+/**
+ * If the receiver is visible, moves it to the top of the
+ * drawing order for the display on which it was created
+ * (so that all other shells on that display, which are not
+ * the receiver's children will be drawn behind it) and forces
+ * the window manager to make the shell active.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ * @see Control#moveAbove
+ * @see Control#setFocus
+ * @see Control#setVisible
+ * @see Display#getActiveShell
+ * @see Decorations#setDefaultButton(Button)
+ * @see Shell#open
+ * @see Shell#setActive
+ */
+public void forceActive () {
+ checkWidget ();
+ bringToTop (true);
+}
+
+public void moveAbove (Control control) {
+ if(parent == null) {
+ // There's no way to move windows above other windows in Qt.
+ // Therefore here it's raised to the top despite of the control
+ // parameter.
+ // Also this sends the window on top of ALL windows including the
+ // windows of other applications.
+ OS.QWidget_raise(topHandle);
+ } else {
+ super.moveAbove(control);
+ }
+}
+
+public void moveBelow (Control control) {
+ if(parent == null) {
+ // There's no way to move windows below other windows in Qt.
+ // Therefore here it's lowered to the bottom despite of the control
+ // parameter.
+ // Also this sends the window below ALL the windows including the
+ // windows of other applications.
+ OS.QWidget_lower(topHandle);
+ } else {
+ super.moveBelow(control);
+ }
+}
+
+void releaseHandle_pp () {
+ mainWindowHandle = 0;
+ dialogWindowHandle = 0;
+ super.releaseHandle_pp ();
+}
+
+void releaseChildren_pp (boolean destroy) {
+ Shell [] shells = getShells ();
+ for (int i=0; i<shells.length; i++) {
+ Shell shell = shells [i];
+ if (shell != null && !shell.isDisposed ()) {
+ shell.release(true);
+ }
+ }
+ super.releaseChildren_pp (destroy);
+}
+
+void releaseWidget_pp () {
+ super.releaseWidget_pp ();
+ display.clearModal (this);
+ if(windowSurface != null) {
+ windowSurface.dispose();
+ windowSurface = null;
+ }
+}
+
+boolean qt_event_keypress_pp(int widgetHandle, int key,
+ int modifier, int character, int nativeScanCode) {
+ super.qt_event_keypress_pp(widgetHandle, key, modifier, character, nativeScanCode);
+ // Key event is canceled to prevent propagation from viewport to its parent
+ return true;
+}
+
+boolean qt_event_keyrelease_pp( int widgetHandle, int key, int modifier, int character, int nativeScanCode )
+{
+ super.qt_event_keyrelease_pp(widgetHandle, key, modifier, character, nativeScanCode);
+ // Key event is canceled to prevent propagation from viewport to its parent
+ return true;
+}
+
+public Rectangle internal_getDefaultBounds() {
+ return defBounds;
+}
+
+WindowSurface getWindowSurface() {
+ checkWidget();
+ // Only top level shells have window surface
+ if (parent != null) {
+ return null;
+ }
+ if(windowSurface == null) {
+ windowSurface = new WindowSurface(this, true);
+ }
+ return windowSurface;
+}
+
+}