net.fenyo.gnetwatch.GUI.AwtGUI.java Source code

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Here is the source code for net.fenyo.gnetwatch.GUI.AwtGUI.java

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/*
 * GNetWatch
 * Copyright 2006, 2007, 2008 Alexandre Fenyo
 * gnetwatch@fenyo.net
 *
 * This file is part of GNetWatch.
 *
 * GNetWatch is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GNetWatch is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNetWatch; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

package net.fenyo.gnetwatch.GUI;

import java.io.*;
import java.lang.reflect.*;

import javax.swing.*;
import java.awt.*;
import java.util.*;

import net.fenyo.gnetwatch.*;
import net.fenyo.gnetwatch.activities.*;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * This class creates JFrame instances outside of SWT, to allow use of Java2D API.
 * @author Alexandre Fenyo
 * @version $Id: AwtGUI.java,v 1.16 2008/10/30 12:01:27 fenyo Exp $
 */

public class AwtGUI implements Runnable {
    private static Log log = LogFactory.getLog(AwtGUI.class);

    private final Config config;

    private Thread repaint_thread;
    private java.util.List<JFrame> frame_list = new ArrayList<JFrame>();

    /**
     * Constructor.
     * @param config configuration.
     */
    // GUI thread
    public AwtGUI(final Config config) {
        this.config = config;
    }

    /**
     * Removes an AWT frame.
     * @param frame frame to remove.
     * @return void.
     */
    // GUI thread
    public void dropFrame(final JFrame frame) {
        synchronized (frame_list) {
            frame_list.remove(frame);
        }
        frame.dispose();
    }

    /**
     * Creates a thread that will repaint each frame regularly.
     * @param none.
     * @return void.
     */
    // GUI thread
    public void createAwtGUI() {
        JFrame.setDefaultLookAndFeelDecorated(false);
        createRepaintThread();
    }

    /**
     * Creates a thread that will repaint each frame regularly.
     * @param none.
     * @return void.
     */
    // GUI thread
    private void createRepaintThread() {
        repaint_thread = new Thread(this, "Repaint Thread");
        repaint_thread.start();
    }

    /**
     * Adds a component to a frame and displays the frame.
     * This method must be run from the AWT thread.
     * @param frame frame.
     * @param component component to add.
     */
    // AWT thread
    private void _createFrame(final JFrame frame, final BasicComponent component) {
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.getContentPane().add(component);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
        frame.toFront();
    }

    /**
     * Adds a component to a frame and displays the frame.
     * This method can be run from any thread, and particularly the SWT thread.
     * @param frame frame.
     * @param component component to add.
     */
    // GUI thread
    public JFrame createFrame(final String name, final BasicComponent component)
            throws InterruptedException, InvocationTargetException {
        final JFrame frame = new JFrame(name);
        frame.addWindowListener(component);
        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                _createFrame(frame, component);
            }
        });
        synchronized (frame_list) {
            frame_list.add(frame);
        }
        return frame;
    }

    /**
     * Refreshes the frames regularly.
     * @param none.
     * @return void.
     */
    // repaint thread
    public void run() {
        int cnt = 0;
        while (!config.isEnd())
            try {
                Thread.sleep(20);
                cnt++;
                synchronized (frame_list) {
                    for (final Frame frame : frame_list) {
                        final BasicComponent component = ((BasicComponent) ((JFrame) frame).getContentPane()
                                .getComponent(0));
                        if ((component.isManualMode() == false && component.pixelsOffsetChanged() == true)
                                || cnt == 50)
                            frame.repaint();
                    }
                }
                if (cnt == 50)
                    cnt = 0;
            } catch (final InterruptedException ex) {
                // this thread is interrupted when the application is terminated
            }
    }

    /**
     * Terminates the repaint thread and closes any frame.
     * @param none.
     * @return void.
     * @throws InterruptedException exception.
     */
    // main thread
    public void end() throws InterruptedException {
        // terminate the repaint thread
        repaint_thread.interrupt();
        repaint_thread.join();

        synchronized (frame_list) {
            for (final Frame frame : frame_list)
                frame.dispose();
        }
    }

    public void createDialog() {
        try {
            javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    final JTextField button = new JTextField();
                    button.setText("close this window to stop the foreground action");
                    final JFrame frame = new JFrame("working...");
                    frame.addWindowListener(new java.awt.event.WindowAdapter() {
                        public void windowClosing(java.awt.event.WindowEvent e) {
                            // XXX
                        }
                    });

                    frame.getContentPane().add(button, BorderLayout.CENTER);
                    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                    frame.pack();
                    frame.setVisible(true);
                    frame.toFront();
                }
            });
        } catch (final InvocationTargetException ex) {
            log.error("exception", ex);
        } catch (final InterruptedException ex) {
            log.error("exception", ex);
        }
    }
}