ColorTransparentCreate.java Source code

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Here is the source code for ColorTransparentCreate.java

Source

/*******************************************************************************
 * Copyright (c) 2000, 2006 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
 *******************************************************************************/

/* 
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.PaletteData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class ColorTransparentCreate {

    public static void main(String[] args) {
        final Display display = new Display();
        Shell shell = new Shell(display);
        shell.setBounds(10, 10, 200, 200);

        // create a cursor with a transparent image
        Color white = display.getSystemColor(SWT.COLOR_WHITE);
        Color black = display.getSystemColor(SWT.COLOR_BLACK);
        PaletteData palette = new PaletteData(new RGB[] { white.getRGB(), black.getRGB() });
        final ImageData sourceData = new ImageData(30, 30, 1, palette);
        sourceData.transparentPixel = 0;

        Canvas canvas = new Canvas(shell, SWT.BORDER);
        canvas.setBounds(10, 50, 150, 100);

        canvas.addPaintListener(new PaintListener() {
            public void paintControl(PaintEvent e) {
                e.gc.drawString("hide Cursor here", 10, 10);
                e.gc.drawImage(new Image(display, sourceData), 0, 0);
            }
        });

        shell.open();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }

        display.dispose();
    }
}