org.eclipse.swt.snippets.Snippet242.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet242.java

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/*******************************************************************************
 * Copyright (c) 2000, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

/*
 * Cursor snippet: Hide the Cursor over a control.
 *
 * 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 Snippet242 {

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Snippet 242");
        shell.setBounds(10, 10, 200, 200);
        Canvas canvas = new Canvas(shell, SWT.BORDER);
        canvas.setBounds(10, 50, 150, 100);
        canvas.addPaintListener(e -> e.gc.drawString("hide Cursor here", 10, 10));

        // 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(white.getRGB(), black.getRGB());
        ImageData sourceData = new ImageData(16, 16, 1, palette);
        sourceData.transparentPixel = 0;
        Cursor cursor = new Cursor(display, sourceData, 0, 0);

        shell.open();
        canvas.setCursor(cursor);
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        cursor.dispose();
        display.dispose();
    }
}