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package org.eclipse.swt.widgets;
/*
* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
* This file is made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*/
import org.eclipse.swt.internal.carbon.OS;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
public class Decorations extends Canvas {
Image image;
Menu menuBar;
String text = "";
boolean minimized, maximized;
Control savedFocus;
Button defaultButton, saveDefault;
Decorations () {
/* Do nothing */
}
public Decorations (Composite parent, int style) {
super (parent, checkStyle (style));
}
static int checkStyle (int style) {
if ((style & (SWT.MENU | SWT.MIN | SWT.MAX | SWT.CLOSE)) != 0) {
style |= SWT.TITLE;
}
return style;
}
protected void checkSubclass () {
if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
}
Control computeTabGroup () {
return this;
}
Control computeTabRoot () {
return this;
}
public Button getDefaultButton () {
checkWidget();
return defaultButton;
}
public Image getImage () {
checkWidget();
return image;
}
public boolean getMaximized () {
checkWidget();
return maximized;
}
public Menu getMenuBar () {
checkWidget();
return menuBar;
}
public boolean getMinimized () {
checkWidget();
return minimized;
}
String getNameText () {
return getText ();
}
public String getText () {
checkWidget();
return text;
}
boolean isTabGroup () {
return true;
}
boolean isTabItem () {
return false;
}
Decorations menuShell () {
return this;
}
void releaseWidget () {
if (menuBar != null) menuBar.dispose ();
menuBar = null;
Display display = getDisplay ();
Menu [] menus = display.getMenus (this);
if (menus != null) {
do {
int index = 0;
while (index < menus.length) {
Menu menu = menus [index];
if (menu != null && !menu.isDisposed ()) {
while (menu.getParentMenu () != null) {
menu = menu.getParentMenu ();
}
menu.dispose ();
break;
}
index++;
}
if (index == menus.length) break;
} while (true);
}
menus = null;
super.releaseWidget ();
defaultButton = saveDefault = null;
}
boolean restoreFocus () {
if (savedFocus != null && savedFocus.isDisposed ()) savedFocus = null;
if (savedFocus == null) return false;
return savedFocus.forceFocus ();
}
void saveFocus () {
int window = OS.GetControlOwner (handle);
Control control = getDisplay ().getFocusControl (window);
if (control != null) savedFocus = control;
}
public void setDefaultButton (Button button) {
checkWidget();
setDefaultButton (button, true);
}
void setDefaultButton (Button button, boolean save) {
if (button == null) {
if (defaultButton == saveDefault) {
if (save) saveDefault = null;
return;
}
} else {
if (button.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if ((button.style & SWT.PUSH) == 0) return;
if (button == defaultButton) return;
}
if (defaultButton != null) {
if (!defaultButton.isDisposed ()) defaultButton.setDefault (false);
}
if ((defaultButton = button) == null) defaultButton = saveDefault;
if (defaultButton != null) {
if (!defaultButton.isDisposed ()) defaultButton.setDefault (true);
}
if (save || saveDefault == null) saveDefault = defaultButton;
if (saveDefault != null && saveDefault.isDisposed ()) saveDefault = null;
}
public void setImage (Image image) {
checkWidget();
if (image != null) {
if (image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
}
this.image = image;
}
public void setMaximized (boolean maximized) {
checkWidget();
this.maximized = maximized;
}
public void setMenuBar (Menu menu) {
checkWidget();
if (menuBar == menu) return;
if (menu != null) {
if (menu.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if ((menu.style & SWT.BAR) == 0) error (SWT.ERROR_MENU_NOT_BAR);
if (menu.parent != this) error (SWT.ERROR_INVALID_PARENT);
}
menuBar = menu;
Display display = getDisplay ();
display.updateMenuBar ();
}
public void setMinimized (boolean minimized) {
checkWidget();
this.minimized = minimized;
}
public void setText (String string) {
checkWidget();
if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
text = string;
}
}
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