Draw Images Example
/******************************************************************************
* All Right Reserved.
* Copyright (c) 1998, 2004 Jackwind Li Guojie
*
* Created on 2004-4-19 10:44:37 by JACK
* $Id$
*
*****************************************************************************/
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
*
*/
public class DrawImages {
Display display = new Display();
Shell shell = new Shell(display);
public DrawImages() {
shell.setLayout(new FillLayout());
Canvas canvas = new Canvas(shell, SWT.NULL);
final Image image = new Image(display, "java2s.gif");
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.drawImage(image, 10, 10);
e.gc.drawImage(image, 0, 0, 100, 100, 200, 10, 200, 50);
}
});
shell.setSize(430, 200);
shell.open();
//textUser.forceFocus();
captureControl(canvas, "canvas.bmp");
// Set up the event loop.
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
// If no more entries in event queue
display.sleep();
}
}
display.dispose();
}
/**
* Captures the specified control and saves the result into a file in the BMP format.
* @param control
* @param fileName
*/
public static void captureControl(Control control, String file) {
GC gc = new GC(control);
Image image = new Image(control.getDisplay(), control.getSize().x, control.getSize().y);
gc.copyArea(image, 0, 0);
ImageLoader loader = new ImageLoader();
loader.data = new ImageData[] { image.getImageData() };
loader.save(file, SWT.IMAGE_BMP);
gc.dispose();
}
private void init() {
}
public static void main(String[] args) {
new DrawImages();
}
}
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