/*****************************************************************************
* Copyright (c) 2011 Cedric Dumoulin.
*
*
* 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:
* Cedric Dumoulin Cedric.dumoulin@lifl.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.core.sasheditor.editor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Control;
/**
* Utility class to get an Image from an IPage.
*
* @author cedric dumoulin
*
*/
public class IPageImageUtils {
/**
* Get an Image of the page.
* The Image is build from the Control.
*
* @param The IPage for which an Image is requested.
* @return The Image of the page, or null if no Image can be built.
*/
static public Image getPageImage(IPage page) {
Rectangle size;
Control control = page.getControl();
size = control.getBounds();
if(size.width == 0 && size.height == 0) {
Point pt = control.computeSize(SWT.DEFAULT, SWT.DEFAULT);
size = new Rectangle(0, 0, pt.x, pt.y);
}
Image image = new Image(control.getDisplay(), size);
GC gc = new GC(image);
boolean success = control.print(gc);
gc.dispose();
if(!success) {
image.dispose();
return null;
}
return image;
}
}