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/*******************************************************************************
* Copyright (c) 2000, 2016 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.swt.snippets;
/*
* GC example snippet: take a screen shot with a GC
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.*;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class Snippet215 {
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Button button = new Button(shell, SWT.PUSH);
button.setText("Capture");
button.addListener(SWT.Selection, event -> {
/* Take the screen shot */
GC gc = new GC(display);
final Image image = new Image(display, display.getBounds());
gc.copyArea(image, 0, 0);
gc.dispose();
Shell popup = new Shell(shell, SWT.SHELL_TRIM);
popup.setLayout(new FillLayout());
popup.setText("Image");
popup.setBounds(50, 50, 200, 200);
popup.addListener(SWT.Close, e -> image.dispose());
ScrolledComposite sc = new ScrolledComposite (popup, SWT.V_SCROLL | SWT.H_SCROLL);
Canvas canvas = new Canvas(sc, SWT.NONE);
sc.setContent(canvas);
canvas.setBounds(display.getBounds ());
canvas.addPaintListener(e -> e.gc.drawImage(image, 0, 0));
popup.open();
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
}
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