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/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.compare.internal;
import java.util.ResourceBundle;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.DialogSettings;
/**
* Base class for resizable Dialogs with persistent window bounds.
*/
public abstract class ResizableDialog extends Dialog {
// dialog store id constants
private final static String DIALOG_BOUNDS_KEY= "ResizableDialogBounds"; //$NON-NLS-1$
private static final String X= "x"; //$NON-NLS-1$
private static final String Y= "y"; //$NON-NLS-1$
private static final String WIDTH= "width"; //$NON-NLS-1$
private static final String HEIGHT= "height"; //$NON-NLS-1$
protected ResourceBundle fBundle;
private Rectangle fNewBounds;
private IDialogSettings fSettings;
private String fContextId;
public ResizableDialog(Shell parent, ResourceBundle bundle) {
super(parent);
setShellStyle(getShellStyle() | SWT.RESIZE | SWT.MAX);
fBundle= bundle;
fSettings= CompareUIPlugin.getDefault().getDialogSettings();
}
public void setHelpContextId(String contextId) {
fContextId= contextId;
}
/*
* @see org.eclipse.jface.window.Window#configureShell(Shell)
*/
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
if (fContextId != null)
PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, fContextId);
}
protected Point getInitialSize() {
int width= 0;
int height= 0;
final Shell s= getShell();
if (s != null) {
s.addControlListener(
new ControlListener() {
public void controlMoved(ControlEvent arg0) {
fNewBounds= s.getBounds();
}
public void controlResized(ControlEvent arg0) {
fNewBounds= s.getBounds();
}
}
);
}
IDialogSettings bounds= fSettings.getSection(DIALOG_BOUNDS_KEY);
if (bounds == null) {
if (fBundle != null) {
width= Utilities.getInteger(fBundle, WIDTH, 0);
height= Utilities.getInteger(fBundle, HEIGHT, 0);
Shell shell= getParentShell();
if (shell != null) {
Point parentSize= shell.getSize();
if (width <= 0)
width= parentSize.x-300;
if (height <= 0)
height= parentSize.y-200;
}
} else {
Shell shell= getParentShell();
if (shell != null) {
Point parentSize= shell.getSize();
width= parentSize.x-100;
height= parentSize.y-100;
}
}
if (width < 700)
width= 700;
if (height < 500)
height= 500;
} else {
try {
width= bounds.getInt(WIDTH);
} catch (NumberFormatException e) {
width= 700;
}
try {
height= bounds.getInt(HEIGHT);
} catch (NumberFormatException e) {
height= 500;
}
}
return new Point(width, height);
}
protected Point getInitialLocation(Point initialSize) {
Point loc= super.getInitialLocation(initialSize);
IDialogSettings bounds= fSettings.getSection(DIALOG_BOUNDS_KEY);
if (bounds != null) {
try {
loc.x= bounds.getInt(X);
} catch (NumberFormatException e) {
// silently ignored
}
try {
loc.y= bounds.getInt(Y);
} catch (NumberFormatException e) {
// silently ignored
}
}
return loc;
}
public boolean close() {
boolean closed= super.close();
if (closed && fNewBounds != null)
saveBounds(fNewBounds);
return closed;
}
private void saveBounds(Rectangle bounds) {
IDialogSettings dialogBounds= fSettings.getSection(DIALOG_BOUNDS_KEY);
if (dialogBounds == null) {
dialogBounds= new DialogSettings(DIALOG_BOUNDS_KEY);
fSettings.addSection(dialogBounds);
}
dialogBounds.put(X, bounds.x);
dialogBounds.put(Y, bounds.y);
dialogBounds.put(WIDTH, bounds.width);
dialogBounds.put(HEIGHT, bounds.height);
}
}
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