org.eclipse.swt.snippets.Snippet281.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet281.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;

/*
 * draw a multi-gradient
 *
 * 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.layout.*;
import org.eclipse.swt.widgets.*;

public class Snippet281 {

    public static void main(String[] args) {
        final Display display = new Display();
        final Shell shell = new Shell(display, SWT.SHELL_TRIM | SWT.NO_BACKGROUND);
        shell.setText("Snippet 281");
        shell.setLayout(new FillLayout());
        shell.addListener(SWT.Paint, e -> {
            GC gc = e.gc;
            Rectangle rect = shell.getClientArea();
            Color color1 = new Color(display, 234, 246, 253);
            Color color2 = new Color(display, 217, 240, 252);
            Color color3 = new Color(display, 190, 230, 253);
            Color color4 = new Color(display, 167, 217, 245);
            Pattern p1 = new Pattern(display, 0, 0, 0, rect.height / 2, color1, color2);
            gc.setBackgroundPattern(p1);
            gc.fillRectangle(rect.x, rect.y, rect.width, rect.height / 2);
            Pattern p2 = new Pattern(display, 0, rect.height / 2, 0, rect.height, color3, color4);
            gc.setBackgroundPattern(p2);
            gc.fillRectangle(rect.x, rect.y + (rect.height / 2), rect.width, rect.height / 2 + 1);
            p1.dispose();
            p2.dispose();
            color1.dispose();
            color2.dispose();
            color3.dispose();
            color4.dispose();
        });
        shell.setSize(200, 64);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }

}