TimeStopWhenButtonPressing.java Source code

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Here is the source code for TimeStopWhenButtonPressing.java

Source

/*******************************************************************************
 * 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
 *******************************************************************************/

/*
 * Display example snippet: stop a repeating timer when a button is pressed
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.RowData;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class TimeStopWhenButtonPressing {

    public static void main(String[] args) {
        final Display display = new Display();
        final Color red = display.getSystemColor(SWT.COLOR_RED);
        final Color blue = display.getSystemColor(SWT.COLOR_BLUE);
        Shell shell = new Shell(display);
        shell.setLayout(new RowLayout());
        Button button = new Button(shell, SWT.PUSH);
        button.setText("Stop Timer");
        final Label label = new Label(shell, SWT.BORDER);
        label.setBackground(red);
        final int time = 500;
        final Runnable timer = new Runnable() {
            public void run() {
                if (label.isDisposed())
                    return;
                Color color = label.getBackground().equals(red) ? blue : red;
                label.setBackground(color);
                display.timerExec(time, this);
            }
        };
        display.timerExec(time, timer);
        button.addListener(SWT.Selection, new Listener() {
            public void handleEvent(Event event) {
                display.timerExec(-1, timer);
            }
        });
        button.pack();
        label.setLayoutData(new RowData(button.getSize()));
        shell.pack();
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}