001/*
002 * $Id: WindowsStatusBarUI.java 3472 2009-08-27 13:12:42Z kleopatra $
003 *
004 * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
005 * Santa Clara, California 95054, U.S.A. All rights reserved.
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 * 
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015 * Lesser General Public License for more details.
016 * 
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
020 */
021
022package org.jdesktop.swingx.plaf.windows;
023
024import java.awt.Graphics2D;
025import java.awt.Insets;
026import java.awt.image.BufferedImage;
027import java.util.logging.Level;
028import java.util.logging.Logger;
029
030import javax.imageio.ImageIO;
031import javax.swing.JComponent;
032import javax.swing.plaf.ComponentUI;
033
034import org.jdesktop.swingx.JXStatusBar;
035import org.jdesktop.swingx.plaf.UIManagerExt;
036import org.jdesktop.swingx.plaf.basic.BasicStatusBarUI;
037
038/**
039 * @author rbair
040 */
041public class WindowsStatusBarUI extends BasicStatusBarUI {
042    private static final Logger log = Logger.getLogger(WindowsStatusBarUI.class.getName());
043    private BufferedImage leftImage;
044    private BufferedImage middleImage;
045    private BufferedImage rightImage;
046    
047    
048    /** Creates a new instance of WindowsStatusBarUI */
049    public WindowsStatusBarUI() {
050        //SwingX #827: must create these here or size is incorrect
051        //TODO need to determine a better way to handle these images
052        try {
053            leftImage = ImageIO.read(WindowsStatusBarUI.class.getResource(UIManagerExt.getString("StatusBar.leftImage")));
054            middleImage = ImageIO.read(WindowsStatusBarUI.class.getResource(UIManagerExt.getString("StatusBar.middleImage")));
055            rightImage = ImageIO.read(WindowsStatusBarUI.class.getResource(UIManagerExt.getString("StatusBar.rightImage")));
056        } catch (Exception e) {
057            // log the message in case of init failure
058            log.log(Level.FINE, e.getLocalizedMessage(), e);
059        }
060    }
061    
062    /**
063     * Returns an instance of the UI delegate for the specified component.
064     * Each subclass must provide its own static <code>createUI</code>
065     * method that returns an instance of that UI delegate subclass.
066     * If the UI delegate subclass is stateless, it may return an instance
067     * that is shared by multiple components.  If the UI delegate is
068     * stateful, then it should return a new instance per component.
069     * The default implementation of this method throws an error, as it
070     * should never be invoked.
071     */
072    public static ComponentUI createUI(JComponent c) {
073        return new WindowsStatusBarUI();
074    }
075    
076    @Override protected void paintBackground(Graphics2D g, JXStatusBar statusBar) {
077        if (leftImage == null || middleImage == null || rightImage == null) {
078            log.severe("Failed to initialize necessary assets. Set logging to FINE to see more details.");
079            return;
080        }
081        //if bidi, reverse the image painting order
082        //TODO need to handle vertical stretching better
083        g.drawImage(leftImage, 0, 0, leftImage.getWidth(), statusBar.getHeight(), null);
084        
085        if (statusBar.isResizeHandleEnabled()) {
086            g.drawImage(middleImage, leftImage.getWidth(), 0, statusBar.getWidth() - leftImage.getWidth() - rightImage.getWidth(), statusBar.getHeight(), null);
087            g.drawImage(rightImage, statusBar.getWidth() - rightImage.getWidth(), 0, rightImage.getWidth(), statusBar.getHeight(), null);
088        } else {
089            g.drawImage(middleImage, leftImage.getWidth(), 0, statusBar.getWidth() - leftImage.getWidth(), statusBar.getHeight(), null);
090        }
091    }
092    
093    @Override protected Insets getSeparatorInsets(Insets insets) {
094        if (insets == null) {
095            insets = new Insets(0, 0, 0, 0);
096        }
097        insets.top = 1;
098        insets.left = 4;
099        insets.bottom = 0;
100        insets.right = 4;
101        return insets;
102    }
103}