/*******************************************************************************
* Copyright (c) 2000, 2005 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
* Zhou Renjian - initial Java2Script implementation
*******************************************************************************/package org.eclipse.swt.widgets;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTException;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.internal.browser.OS;
import org.eclipse.swt.internal.struct.MESSAGE;
import org.eclipse.swt.internal.struct.WINDOWPOS;
import org.eclipse.swt.internal.xhtml.Element;
import org.eclipse.swt.internal.xhtml.document;
/**
* 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>
* This class may be subclassed by custom control implementors
* who are building controls that are constructed from aggregates
* of other controls.
* </p>
*
* @see Canvas
*
* @j2sPrefix
* $WTC$$.registerCSS ("$wt.widgets.Composite");
*/
public class Composite extends Scrollable {
Layout layout;
WINDOWPOS[] lpwp;
Control[] tabList;
int layoutCount = 0;
// Control [] children = new Control[0];
Control[] children;
boolean waitingForLayoutWithResize;
/**
* Prevents uninitialized instances from being created outside the package.
* @j2sIgnore
*/
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
*
* @j2sIgnore
*/
public Composite(Composite parent, int style) {
super (parent, style);
/*
children = new Control[0];
*/
}
protected Control[] _getChildren() {
//return children;
//if (true) return children;
/*
* TODO: search the DOM and filter out the children
*/
int count = children != null ? children.length : 0; //handle.childNodes.length;
//Control [] children = new Control [0];
int index = 0;
Control[] newChildren = new Control[0];
for (int i = 0; i < count; i++) {
Control control = children[i]; //display.getControl (handle.childNodes[i]);
if (control != null && control != this
&& !(control instanceof Shell)) {
newChildren[index++] = control;
}
}
return newChildren;
/*
int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
if (hwndChild == 0) return new Control [0];
while (hwndChild != 0) {
count++;
hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
}
hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
while (hwndChild != 0) {
Control control = display.getControl (hwndChild);
if (control != null && control != this) {
children [index++] = control;
}
hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
}
if (count == index) return children;
Control [] newChildren = new Control [index];
System.arraycopy (children, 0, newChildren, 0, index);
return newChildren;
*/
}
Control[] _getTabList() {
if (tabList == null)
return tabList;
int count = 0;
int length = tabList.length;
for (int i = 0; i < length; i++) {
if (!tabList[i].isDisposed())
count++;
}
if (count == length)
return tabList;
Control[] newList = new Control[count];
int index = 0;
for (int i = 0; i < 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);
int length = changed.length;
for (int i = 0; i < 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 < 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;
}
}
}
void checkBuffered() {
/*
if (OS.IsWinCE || (state & CANVAS) == 0) {
super.checkBuffered ();
}
*/
}
protected void checkSubclass() {
/* Do nothing - Subclassing is allowed */
}
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;
}
public Point computeSize(int wHint, int hHint, boolean changed) {
checkWidget();
Point size;
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)
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);
}
protected Element containerHandle() {
return handle;
}
protected void createHandle() {
children = new Control[0];
//super.createHandle ();
handle = document.createElement("DIV");
handle.className = "composite-default";
if ((style & SWT.BORDER) != 0) {
handle.className += " composite-border";
}
if (parent != null) {
Element parentHandle = parent.containerHandle();
if (parentHandle != null) {
parentHandle.appendChild(handle);
}
}
state |= CANVAS;
}
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;
}
void fixChildren(Shell newShell, Shell oldShell,
Decorations newDecorations, Decorations oldDecorations,
Menu[] menus) {
super .fixChildren(newShell, oldShell, newDecorations,
oldDecorations, menus);
Control[] children = _getChildren();
int length = children.length;
for (int i = 0; i < length; i++) {
children[i].fixChildren(newShell, oldShell, newDecorations,
oldDecorations, menus);
}
}
void fixChildrenList(Control control) {
int length = children.length;
if (children == null || length == 0)
return;
Control[] newChildren = new Control[0];
for (int i = 0; i < length; i++) {
Control child = children[i];
if (child != null && child != control) {
newChildren[newChildren.length] = child;
}
}
children = newChildren;
}
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;
}
public int getBorderWidth() {
if ((style & SWT.BORDER) != 0) {
return 2;
}
return 0;
}
/**
* Returns a (possibly empty) array containing the receiver's children.
* Children are returned in the order that they are drawn.
* <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() {
if (true)
return 0;
/*
* NOTE: The current implementation will count
* non-registered children.
*/
// int count = 0;
/*
int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
while (hwndChild != 0) {
count++;
hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
}
*/
// TODO: search the children and filter out the essential children
// return count;
return _getChildren().length;
}
/**
* 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();
int length = list.length;
for (int i = 0; i < length; i++) {
if (list[i].isTabGroup())
count++;
}
tabList = new Control[count];
int index = 0;
for (int i = 0; i < 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 layoutCount > 0 || parent.isLayoutDeferred();
}
/**
* 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>
*
* @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>
*
* @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;
/*
* FIXME: Here I changed the all argument to true!
*/
layout(changed, 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 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>
*
* @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(true, 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.
*
* @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);
// Date d = new Date();
int length = changed.length;
for (int i = 0; i < 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);
}
// System.out.println(":::" + (new Date().getTime() - d.getTime()));
// d = new Date();
int updateCount = 0;
Composite[] update = new Composite[16];
for (int i = 0; i < 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;
}
}
// System.out.println(":::" + (new Date().getTime() - d.getTime()));
// d = new Date();
for (int i = updateCount - 1; i >= 0; i--) {
update[i].updateLayout(true, false);
}
// System.out.println(":::" + (new Date().getTime() - d.getTime()));
// d = new Date();
}
void markLayout(boolean changed, boolean all) {
if (layout != null) {
state |= LAYOUT_NEEDED;
if (changed)
state |= LAYOUT_CHANGED;
}
if (all) {
Control[] children = _getChildren();
int length = children.length;
for (int i = 0; i < length; i++) {
children[i].markLayout(changed, all);
}
}
}
Point minimumSize(int wHint, int hHint, boolean changed) {
Control[] children = _getChildren();
int width = 0, height = 0;
int length = children.length;
for (int i = 0; i < length; i++) {
Rectangle rect = children[i].getBounds();
width = Math.max(width, rect.x + rect.width);
height = Math.max(height, rect.y + rect.height);
}
return new Point(width, height);
}
void releaseChildren() {
Control[] children = _getChildren();
int length = children.length;
for (int i = 0; i < length; i++) {
Control child = children[i];
if (!child.isDisposed())
child.releaseResources();
}
}
protected void releaseWidget() {
releaseChildren();
super .releaseWidget();
if ((state & CANVAS) != 0 && (style & SWT.EMBEDDED) != 0) {
/*
int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
if (hwndChild != 0) {
int threadId = OS.GetWindowThreadProcessId (hwndChild, null);
if (threadId != OS.GetCurrentThreadId ()) {
OS.SetParent (hwndChild, 0);
}
}
*/
}
children = null;
layout = null;
tabList = null;
if (lpwp != null) {
int length = lpwp.length;
for (int i = 0; i < length; i++) {
lpwp[i].hwnd = null;
lpwp[i].hwndInsertAfter = null;
}
}
lpwp = null;
}
protected void removeControl(Control control) {
fixTabList(control);
fixChildrenList(control);
resizeChildren();
}
void resizeChildren() {
if (lpwp == null)
return;
do {
WINDOWPOS[] currentLpwp = lpwp;
lpwp = null;
if (!resizeChildren(true, currentLpwp)) {
resizeChildren(false, currentLpwp);
}
} while (lpwp != null);
}
boolean resizeChildren(boolean defer, WINDOWPOS[] pwp) {
if (pwp == null)
return true;
int hdwp = 0;
if (defer) {
//hdwp = OS.BeginDeferWindowPos (pwp.length);
if (hdwp == 0)
return false;
}
int length = pwp.length;
for (int i = 0; i < length; i++) {
WINDOWPOS wp = pwp[i];
if (wp != null) {
/*
* This code is intentionally commented. All widgets that
* are created by SWT have WS_CLIPSIBLINGS to ensure that
* application code does not draw outside of the control.
*/
// int count = parent.getChildrenCount ();
// if (count > 1) {
// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
// if ((bits & OS.WS_CLIPSIBLINGS) == 0) wp.flags |= OS.SWP_NOCOPYBITS;
// }
if (defer) {
//hdwp = DeferWindowPos (hdwp, wp.hwnd, null, wp.x, wp.y, wp.cx, wp.cy, wp.flags);
if (hdwp == 0)
return false;
} else {
SetWindowPos(wp.hwnd, null, wp.x, wp.y, wp.cx,
wp.cy, wp.flags);
}
}
}
//if (defer) return OS.EndDeferWindowPos (hdwp);
return true;
}
/*
void resizeEmbeddedHandle(int embeddedHandle, int width, int height) {
if (embeddedHandle == 0) return;
int [] processID = new int [1];
int threadId = OS.GetWindowThreadProcessId (embeddedHandle, processID);
if (threadId != OS.GetCurrentThreadId ()) {
if (processID [0] == OS.GetCurrentProcessId ()) {
if (display.msgHook == 0) {
if (!OS.IsWinCE) {
display.getMsgCallback = new Callback (display, "getMsgProc", 3);
display.getMsgProc = display.getMsgCallback.getAddress ();
if (display.getMsgProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
display.msgHook = OS.SetWindowsHookEx (OS.WH_GETMESSAGE, display.getMsgProc, OS.GetLibraryHandle(), threadId);
OS.PostThreadMessage (threadId, OS.WM_NULL, 0, 0);
}
}
}
int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE | OS.SWP_ASYNCWINDOWPOS;
OS.SetWindowPos (embeddedHandle, 0, 0, 0, width, height, flags);
}
}
*/
boolean setFixedFocus() {
checkWidget();
Control[] children = _getChildren();
int length = children.length;
for (int i = 0; i < length; i++) {
Control child = children[i];
if (child.setRadioFocus())
return true;
}
for (int i = 0; i < length; i++) {
Control child = children[i];
if (child.setFixedFocus())
return true;
}
return super .setFixedFocus();
}
public boolean setFocus() {
checkWidget();
Control[] children = _getChildren();
int length = children.length;
for (int i = 0; i < length; i++) {
Control child = children[i];
if (child.setRadioFocus())
return true;
}
for (int i = 0; i < length; i++) {
Control child = children[i];
if (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) {
if (!defer) {
if (--layoutCount == 0) {
if (!isLayoutDeferred())
updateLayout(true, 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) {
int length = tabList.length;
for (int i = 0; i < 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[length];
System.arraycopy(tabList, 0, newList, 0, length);
tabList = newList;
}
this .tabList = tabList;
int length = tabList.length;
for (int i = 0; i < length; i++) {
tabList[i].handle.tabIndex = i + 1;
}
}
void setResizeChildren(boolean resize) {
if (resize) {
resizeChildren();
} else {
int count = getChildrenCount();
if (count > 1 && lpwp == null) {
lpwp = new WINDOWPOS[count];
}
}
}
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();
int length = children.length;
for (int i = 0; i < length; i++) {
Control child = children[i];
if (child.isTabItem() && child.setRadioFocus())
return true;
}
for (int i = 0; i < length; i++) {
Control child = children[i];
if (child.isTabItem() && child.setTabItemFocus())
return true;
}
return false;
}
/*
String toolTipText (NMTTDISPINFO hdr) {
if ((hdr.uFlags & OS.TTF_IDISHWND) == 0) {
return null;
}
int hwnd = hdr.idFrom;
if (hwnd == 0) return null;
Control control = display.getControl (hwnd);
if (control == null) return null;
return control.toolTipText;
}
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;
}
boolean translateTraversal (MSG msg) {
if ((state & CANVAS) != 0 && (style & SWT.EMBEDDED) != 0) return false;
return super.translateTraversal (msg);
}
boolean updateFont (Font oldFont, Font newFont) {
Control [] children = _getChildren ();
for (int i=0; i<children.length; i++) {
Control control = children [i];
if (!control.isDisposed ()) {
control.updateFont (oldFont, newFont);
}
}
boolean changed = super.updateFont (oldFont, newFont);
if (changed) {
/*
* Call layout() directly so that subclasses that reimplement
* this method instead of using a Layout will set the size and
* location of their children when the font changes.
*-/
layout (true);
}
return changed;
}
*/
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Widget#SetWindowPos(java.lang.Object, java.lang.Object, int, int, int, int, int)
*/
protected boolean SetWindowPos(Object hWnd, Object hWndInsertAfter,
int X, int Y, int cx, int cy, int uFlags) {
if ((style & SWT.BORDER) != 0) {
cx -= 4;
cy -= 4;
}
// if (!isLayoutDeferred()) {
// setLayoutDeferred(true);
// }
// display.timerExec(10, new Runnable() {
// public void run() {
// System.out.println("layout of " + Composite.this);
// layout();
// System.out.println("end layout of " + Composite.this);
// }
// });
Element el = (Element) hWnd;
// TODO: What about hWndInsertAfter and uFlags
el.style.left = X + "px";
el.style.top = Y + "px";
el.style.width = (cx > 0 ? cx : 0) + "px";
el.style.height = (cy > 0 ? cy : 0) + "px";
updateScrollBar(cx, cy);
return true;
// return super.SetWindowPos(hWnd, hWndInsertAfter, X, Y, cx, cy, uFlags);
}
protected void updateScrollBar(int cx, int cy) {
int sbw = cx, sbh = cy;
if (verticalBar != null) { //if ((style & SWT.V_SCROLL) != 0) {
sbw -= OS.getScrollBarWidth();
}
if (horizontalBar != null) { //if ((style & SWT.H_SCROLL) != 0) {
sbh -= OS.getScrollBarHeight();
}
if (verticalBar != null) { //if ((style & SWT.V_SCROLL) != 0) {
verticalBar.outerHandle.style.left = ((sbw > 0 ? sbw : 0))
+ "px";
verticalBar.updateSizeBinding(sbh);
}
if (horizontalBar != null) { //if ((style & SWT.H_SCROLL) != 0) {
horizontalBar.outerHandle.style.top = ((sbh > 0 ? sbh : 0))
+ "px";
horizontalBar.updateSizeBinding(sbw);
}
}
void updateLayout(boolean resize, boolean all) {
if (isLayoutDeferred())
return;
if ((state & LAYOUT_NEEDED) != 0 && !waitingForLayout) {
// boolean changed = (state & LAYOUT_CHANGED) != 0;
// state &= ~(LAYOUT_NEEDED | LAYOUT_CHANGED);
// if (resize) setResizeChildren (false);
// layout.layout (this, changed);
// if (resize) setResizeChildren (true);
this .waitingForLayout = true;
this .waitingForLayoutWithResize = resize;
display.sendMessage(new MESSAGE(this ,
MESSAGE.CONTROL_LAYOUT,
new boolean[] { resize, all }));
}
if (all) {
Control[] children = _getChildren();
int length = children.length;
for (int i = 0; i < length; i++) {
// children [i].updateLayout (resize, all);
if (children[i] instanceof Composite) {
display.sendMessage(new MESSAGE(children[i],
MESSAGE.CONTROL_LAYOUT, new boolean[] {
resize, all }));
}
}
}
}
/*
int widgetStyle () {
/* Force clipping of children by setting WS_CLIPCHILDREN *-/
return super.widgetStyle () | OS.WS_CLIPCHILDREN;
}
LRESULT WM_ERASEBKGND (int wParam, int lParam) {
LRESULT result = super.WM_ERASEBKGND (wParam, lParam);
if (result != null) return result;
if ((state & CANVAS) != 0) {
/* Return zero to indicate that the background was not erased *-/
if ((style & SWT.NO_BACKGROUND) != 0) return LRESULT.ZERO;
}
return result;
}
LRESULT WM_GETDLGCODE (int wParam, int lParam) {
LRESULT result = super.WM_GETDLGCODE (wParam, lParam);
if (result != null) return result;
if ((state & CANVAS) != 0) {
int flags = 0;
if (hooksKeys ()) {
flags |= OS.DLGC_WANTALLKEYS | OS.DLGC_WANTARROWS | OS.DLGC_WANTTAB;
}
if ((style & SWT.NO_FOCUS) != 0) flags |= OS.DLGC_STATIC;
if (OS.GetWindow (handle, OS.GW_CHILD) != 0) flags |= OS.DLGC_STATIC;
if (flags != 0) return new LRESULT (flags);
}
return result;
}
LRESULT WM_GETFONT (int wParam, int lParam) {
LRESULT result = super.WM_GETFONT (wParam, lParam);
if (result != null) return result;
int code = callWindowProc (handle, OS.WM_GETFONT, wParam, lParam);
if (code != 0) return new LRESULT (code);
if (font == 0) font = defaultFont ();
return new LRESULT (font);
}
LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {
LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam);
/* Set focus for a canvas with no children *-/
if ((state & CANVAS) != 0) {
if ((style & SWT.NO_FOCUS) == 0 && hooksKeys ()) {
if (OS.GetWindow (handle, OS.GW_CHILD) == 0) setFocus ();
}
}
return result;
}
LRESULT WM_NOTIFY (int wParam, int lParam) {
if (!OS.IsWinCE) {
NMHDR hdr = new NMHDR ();
OS.MoveMemory (hdr, lParam, NMHDR.sizeof);
switch (hdr.code) {
/*
* Feature in Windows. When the tool tip control is
* created, the parent of the tool tip is the shell.
* If SetParent () is used to reparent the tool bar
* into a new shell, the tool tip is not reparented
* and pops up underneath the new shell. The fix is
* to make sure the tool tip is a topmost window.
*-/
case OS.TTN_SHOW:
case OS.TTN_POP: {
/*
* Bug in Windows 98 and NT. Setting the tool tip to be the
* top most window using HWND_TOPMOST can result in a parent
* dialog shell being moved behind its parent if the dialog
* has a sibling that is currently on top. The fix is to
* lock the z-order of the active window.
*
* Feature in Windows. Using SetWindowPos() with HWND_NOTOPMOST
* to clear the topmost state of a window whose parent is already
* topmost clears the topmost state of the parent. The fix is to
* check if the parent is already on top and neither set or clear
* the topmost status of the tool tip.
*-/
int hwndParent = hdr.hwndFrom;
do {
hwndParent = OS.GetParent (hwndParent);
if (hwndParent == 0) break;
int bits = OS.GetWindowLong (hwndParent, OS.GWL_EXSTYLE);
if ((bits & OS.WS_EX_TOPMOST) != 0) break;
} while (true);
if (hwndParent != 0) break;
display.lockActiveWindow = true;
int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOSIZE;
int hwndInsertAfter = hdr.code == OS.TTN_SHOW ? OS.HWND_TOPMOST : OS.HWND_NOTOPMOST;
SetWindowPos (hdr.hwndFrom, hwndInsertAfter, 0, 0, 0, 0, flags);
display.lockActiveWindow = false;
break;
}
/*
* Bug in Windows 98. For some reason, the tool bar control
* sends both TTN_GETDISPINFOW and TTN_GETDISPINFOA to get
* the tool tip text and the tab folder control sends only
* TTN_GETDISPINFOW. The fix is to handle only TTN_GETDISPINFOW,
* even though it should never be sent on Windows 98.
*
* NOTE: Because the size of NMTTDISPINFO differs between
* Windows 98 and NT, guard against the case where the wrong
* kind of message occurs by inlining the memory moves and
* the UNICODE conversion code.
*-/
case OS.TTN_GETDISPINFOA:
case OS.TTN_GETDISPINFOW: {
NMTTDISPINFO lpnmtdi;
if (hdr.code == OS.TTN_GETDISPINFOA) {
lpnmtdi = new NMTTDISPINFOA ();
OS.MoveMemory ((NMTTDISPINFOA)lpnmtdi, lParam, NMTTDISPINFOA.sizeof);
} else {
lpnmtdi = new NMTTDISPINFOW ();
OS.MoveMemory ((NMTTDISPINFOW)lpnmtdi, lParam, NMTTDISPINFOW.sizeof);
}
String string = toolTipText (lpnmtdi);
if (string != null) {
Shell shell = getShell ();
string = Display.withCrLf (string);
int length = string.length ();
char [] chars = new char [length + 1];
string.getChars (0, length, chars, 0);
/*
* Ensure that the orientation of the tool tip matches
* the orientation of the control.
*-/
int hwnd = hdr.idFrom;
if (hwnd != 0 && ((lpnmtdi.uFlags & OS.TTF_IDISHWND) != 0)) {
Control control = display.getControl (hwnd);
if (control != null) {
if ((control.getStyle () & SWT.RIGHT_TO_LEFT) != 0) {
lpnmtdi.uFlags |= OS.TTF_RTLREADING;
} else {
lpnmtdi.uFlags &= ~OS.TTF_RTLREADING;
}
}
}
if (hdr.code == OS.TTN_GETDISPINFOA) {
byte [] bytes = new byte [chars.length * 2];
OS.WideCharToMultiByte (OS.CP_ACP, 0, chars, chars.length, bytes, bytes.length, null, null);
shell.setToolTipText (lpnmtdi, bytes);
OS.MoveMemory (lParam, (NMTTDISPINFOA)lpnmtdi, NMTTDISPINFOA.sizeof);
} else {
shell.setToolTipText (lpnmtdi, chars);
OS.MoveMemory (lParam, (NMTTDISPINFOW)lpnmtdi, NMTTDISPINFOW.sizeof);
}
return LRESULT.ZERO;
}
break;
}
}
}
return super.WM_NOTIFY (wParam, lParam);
}
LRESULT WM_PARENTNOTIFY (int wParam, int lParam) {
if ((state & CANVAS) != 0 && (style & SWT.EMBEDDED) != 0) {
if ((wParam & 0xFFFF) == OS.WM_CREATE) {
RECT rect = new RECT ();
OS.GetClientRect (handle, rect);
resizeEmbeddedHandle (lParam, rect.right - rect.left, rect.bottom - rect.top);
}
}
return super.WM_PARENTNOTIFY (wParam, lParam);
}
LRESULT WM_PAINT (int wParam, int lParam) {
if ((state & CANVAS) == 0) {
return super.WM_PAINT (wParam, lParam);
}
/* Set the clipping bits *-/
int oldBits = 0, newBits = 0;
if (!OS.IsWinCE) {
oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE);
newBits = oldBits | OS.WS_CLIPSIBLINGS | OS.WS_CLIPCHILDREN;
if (newBits != oldBits) OS.SetWindowLong (handle, OS.GWL_STYLE, newBits);
}
/* Paint the control and the background *-/
PAINTSTRUCT ps = new PAINTSTRUCT ();
if (hooks (SWT.Paint)) {
/* Get the damage *-/
int [] lpRgnData = null;
boolean isComplex = false;
boolean exposeRegion = false;
int rgn = 0;
if ((style & (SWT.NO_MERGE_PAINTS | SWT.DOUBLE_BUFFERED)) != 0) {
rgn = OS.CreateRectRgn (0, 0, 0, 0);
isComplex = OS.GetUpdateRgn (handle, rgn, false) == OS.COMPLEXREGION;
}
if ((style & SWT.NO_MERGE_PAINTS) != 0) {
if (isComplex) {
int nBytes = OS.GetRegionData (rgn, 0, null);
lpRgnData = new int [nBytes / 4];
exposeRegion = OS.GetRegionData (rgn, nBytes, lpRgnData) != 0;
}
}
/* Create the paint GC *-/
GCData data = new GCData ();
data.ps = ps;
data.hwnd = handle;
GC gc = GC.win32_new (this, data);
/* Send the paint event *-/
int width = ps.right - ps.left;
int height = ps.bottom - ps.top;
if (width != 0 && height != 0) {
GC paintGC = null;
Image image = null;
if ((style & SWT.DOUBLE_BUFFERED) != 0) {
image = new Image (display, width, height);
paintGC = gc;
gc = new GC (image, style & SWT.RIGHT_TO_LEFT);
gc.setForeground (getForeground ());
gc.setBackground (getBackground ());
gc.setFont (getFont ());
if ((style & SWT.NO_BACKGROUND) != 0) {
paintGC.copyArea (image, ps.left, ps.top);
} else {
gc.fillRectangle (0, 0, width, height);
}
OS.OffsetRgn (rgn, -ps.left, -ps.top);
OS.SelectClipRgn (gc.handle, rgn);
OS.SetMetaRgn (gc.handle);
OS.SetWindowOrgEx (gc.handle, ps.left, ps.top, null);
}
Event event = new Event ();
event.gc = gc;
if (isComplex && exposeRegion) {
RECT rect = new RECT ();
int count = lpRgnData [2];
for (int i=0; i<count; i++) {
OS.SetRect (rect,
lpRgnData [8 + (i << 2)],
lpRgnData [8 + (i << 2) + 1],
lpRgnData [8 + (i << 2) + 2],
lpRgnData [8 + (i << 2) + 3]);
if ((style & (SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND)) == 0) {
drawBackground (gc.handle, rect);
}
event.x = rect.left;
event.y = rect.top;
event.width = rect.right - rect.left;
event.height = rect.bottom - rect.top;
event.count = count - 1 - i;
/*
* It is possible (but unlikely), that application
* code could have disposed the widget in the paint
* event. If this happens, attempt to give back the
* paint GC anyways because this is a scarce Windows
* resource.
*-/
sendEvent (SWT.Paint, event);
if (isDisposed ()) break;
}
} else {
if ((style & (SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND)) == 0) {
RECT rect = new RECT ();
OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom);
drawBackground (gc.handle, rect);
}
event.x = ps.left;
event.y = ps.top;
event.width = width;
event.height = height;
sendEvent (SWT.Paint, event);
}
// widget could be disposed at this point
event.gc = null;
if ((style & SWT.DOUBLE_BUFFERED) != 0) {
gc.dispose();
if (!isDisposed ()) {
paintGC.drawImage(image, ps.left, ps.top);
}
image.dispose();
gc = paintGC;
}
}
/* Dispose the paint GC *-/
gc.dispose ();
if (rgn != 0) OS.DeleteObject (rgn);
} else {
int hDC = OS.BeginPaint (handle, ps);
if ((style & SWT.NO_BACKGROUND) == 0) {
RECT rect = new RECT ();
OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom);
drawBackground (hDC, rect);
}
OS.EndPaint (handle, ps);
}
/* Restore the clipping bits *-/
if (!OS.IsWinCE) {
if (newBits != oldBits) {
/*
* It is possible (but unlikely), that application
* code could have disposed the widget in the paint
* event. If this happens, don't attempt to restore
* the style.
*-/
if (!isDisposed ()) {
OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits);
}
}
}
return LRESULT.ZERO;
}
LRESULT WM_PRINTCLIENT (int wParam, int lParam) {
LRESULT result = super.WM_PRINTCLIENT (wParam, lParam);
if (result != null) return result;
if ((state & CANVAS) != 0) {
forceResize ();
int nSavedDC = OS.SaveDC (wParam);
RECT rect = new RECT ();
OS.GetClientRect (handle, rect);
if ((style & SWT.NO_BACKGROUND) == 0) {
drawBackground (wParam, rect);
}
if (hooks (SWT.Paint) || filters (SWT.Paint)) {
GCData data = new GCData ();
data.device = display;
GC gc = GC.win32_new (wParam, data);
Event event = new Event ();
event.gc = gc;
event.x = rect.left;
event.y = rect.top;
event.width = rect.right - rect.left;
event.height = rect.bottom - rect.top;
sendEvent (SWT.Paint, event);
event.gc = null;
gc.dispose ();
}
OS.RestoreDC (wParam, nSavedDC);
}
return result;
}
LRESULT WM_SETFONT (int wParam, int lParam) {
return super.WM_SETFONT (font = wParam, lParam);
}
LRESULT WM_SIZE (int wParam, int lParam) {
/* Begin deferred window positioning *-/
setResizeChildren (false);
/* Resize and Layout *-/
LRESULT result = super.WM_SIZE (wParam, lParam);
/*
* It is possible (but unlikely), that application
* code could have disposed the widget in the resize
* event. If this happens, end the processing of the
* Windows message by returning the result of the
* WM_SIZE message.
*-/
if (isDisposed ()) return result;
if (layout != null) {
markLayout (false, false);
updateLayout (false, false);
}
/* End deferred window positioning *-/
setResizeChildren (true);
/* Damage the widget to cause a repaint *-/
if (OS.IsWindowVisible (handle)) {
if ((state & CANVAS) != 0) {
if ((style & SWT.NO_REDRAW_RESIZE) == 0) {
if (hooks (SWT.Paint)) {
OS.InvalidateRect (handle, null, true);
}
}
}
if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
if (findThemeControl () != null) {
int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
while (hwndChild != 0) {
int flags = OS.RDW_ERASE | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN;
OS.RedrawWindow (hwndChild, null, 0, flags);
hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
}
}
}
}
/* Resize the embedded window *-/
if ((state & CANVAS) != 0 && (style & SWT.EMBEDDED) != 0) {
resizeEmbeddedHandle (OS.GetWindow (handle, OS.GW_CHILD), lParam & 0xFFFF, lParam >> 16);
}
return result;
}
LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) {
int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
while (hwndChild != 0) {
OS.SendMessage (hwndChild, OS.WM_SYSCOLORCHANGE, 0, 0);
hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
}
return null;
}
LRESULT WM_SYSCOMMAND (int wParam, int lParam) {
LRESULT result = super.WM_SYSCOMMAND (wParam, lParam);
if (result != null) return result;
/*
* Check to see if the command is a system command or
* a user menu item that was added to the system menu.
*-/
if ((wParam & 0xF000) == 0) return result;
/*
* Bug in Windows. When a vertical or horizontal scroll bar is
* hidden or shown while the opposite scroll bar is being scrolled
* by the user (with WM_HSCROLL code SB_LINEDOWN), the scroll bar
* does not redraw properly. The fix is to detect this case and
* redraw the non-client area.
*-/
if (!OS.IsWinCE) {
int cmd = wParam & 0xFFF0;
switch (cmd) {
case OS.SC_HSCROLL:
case OS.SC_VSCROLL:
boolean showHBar = horizontalBar != null && horizontalBar.getVisible ();
boolean showVBar = verticalBar != null && verticalBar.getVisible ();
int code = callWindowProc (handle, OS.WM_SYSCOMMAND, wParam, lParam);
if ((showHBar != (horizontalBar != null && horizontalBar.getVisible ())) ||
(showVBar != (verticalBar != null && verticalBar.getVisible ()))) {
int flags = OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_UPDATENOW;
OS.RedrawWindow (handle, null, 0, flags);
}
if (code == 0) return LRESULT.ZERO;
return new LRESULT (code);
}
}
/* Return the result *-/
return result;
}
*/
}
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