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/*******************************************************************************
* Copyright (c) 2000, 2004 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: create an icon (in memory)
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.*;
public class Snippet70 {
public static void main (String [] args) {
Display display = new Display ();
Color red = display.getSystemColor (SWT.COLOR_RED);
Color white = display.getSystemColor (SWT.COLOR_WHITE);
Color black = display.getSystemColor (SWT.COLOR_BLACK);
Image image = new Image (display, 20, 20);
GC gc = new GC (image);
gc.setBackground (red);
gc.fillRectangle (5, 5, 10, 10);
gc.dispose ();
ImageData imageData = image.getImageData ();
PaletteData palette = new PaletteData (
new RGB [] {
new RGB (0, 0, 0),
new RGB (0xFF, 0xFF, 0xFF),
});
ImageData maskData = new ImageData (20, 20, 1, palette);
Image mask = new Image (display, maskData);
gc = new GC (mask);
gc.setBackground (black);
gc.fillRectangle (0, 0, 20, 20);
gc.setBackground (white);
gc.fillRectangle (5, 5, 10, 10);
gc.dispose ();
maskData = mask.getImageData ();
Image icon = new Image (display, imageData, maskData);
Shell shell = new Shell (display);
Button button = new Button (shell, SWT.PUSH);
button.setImage (icon);
button.setSize (60, 60);
shell.open ();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
icon.dispose ();
image.dispose ();
mask.dispose ();
display.dispose ();
}
}
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