org.eclipse.swt.snippets.Snippet143.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet143.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;

/*
 * Tray example snippet: place an icon with a popup menu on the system tray
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 *
 * @since 3.0
 */
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.*;

public class Snippet143 {

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Snippet 143");
        Image image = new Image(display, 16, 16);
        Image image2 = new Image(display, 16, 16);
        GC gc = new GC(image2);
        gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
        gc.fillRectangle(image2.getBounds());
        gc.dispose();
        final Tray tray = display.getSystemTray();
        if (tray == null) {
            System.out.println("The system tray is not available");
        } else {
            final TrayItem item = new TrayItem(tray, SWT.NONE);
            item.setToolTipText("SWT TrayItem");
            item.addListener(SWT.Show, event -> System.out.println("show"));
            item.addListener(SWT.Hide, event -> System.out.println("hide"));
            item.addListener(SWT.Selection, event -> System.out.println("selection"));
            item.addListener(SWT.DefaultSelection, event -> System.out.println("default selection"));
            final Menu menu = new Menu(shell, SWT.POP_UP);
            for (int i = 0; i < 8; i++) {
                MenuItem mi = new MenuItem(menu, SWT.PUSH);
                mi.setText("Item" + i);
                mi.addListener(SWT.Selection, event -> System.out.println("selection " + event.widget));
                if (i == 0)
                    menu.setDefaultItem(mi);
            }
            item.addListener(SWT.MenuDetect, event -> menu.setVisible(true));
            item.setImage(image2);
            item.setHighlightImage(image);
        }
        shell.setBounds(50, 50, 300, 200);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        image.dispose();
        image2.dispose();
        display.dispose();
    }
}