| /******************************************************************************* |
| * 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(); |
| } |
| } |