001    /*
002     * $Id: GlossyTaskPaneUI.java 2488 2007-12-05 07:36:31Z rah003 $
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    package org.jdesktop.swingx.plaf.misc;
022    
023    import java.awt.GradientPaint;
024    import java.awt.Graphics;
025    import java.awt.Graphics2D;
026    import java.awt.Paint;
027    import java.awt.RenderingHints;
028    
029    import javax.swing.JComponent;
030    import javax.swing.border.Border;
031    import javax.swing.plaf.ComponentUI;
032    
033    import org.jdesktop.swingx.JXTaskPane;
034    import org.jdesktop.swingx.plaf.basic.BasicTaskPaneUI;
035    
036    /**
037     * Paints the JXTaskPane with a gradient in the title bar.
038     * 
039     * @author <a href="mailto:fred@L2FProd.com">Frederic Lavigne</a>
040     */
041    public class GlossyTaskPaneUI extends BasicTaskPaneUI {
042    
043      public static ComponentUI createUI(JComponent c) {
044        return new GlossyTaskPaneUI();
045      }
046    
047      protected Border createPaneBorder() {
048        return new GlossyPaneBorder();
049      }
050      
051      /**
052       * Overriden to paint the background of the component but keeping the rounded
053       * corners.
054       */
055      public void update(Graphics g, JComponent c) {
056        if (c.isOpaque()) {
057          g.setColor(c.getParent().getBackground());
058          g.fillRect(0, 0, c.getWidth(), c.getHeight());
059          g.setColor(c.getBackground());
060          g.fillRect(0, getRoundHeight(), c.getWidth(), c.getHeight() - getRoundHeight());
061        }
062        paint(g, c);
063      }
064    
065      /**
066       * The border of the taskpane group paints the "text", the "icon", the
067       * "expanded" status and the "special" type.
068       *  
069       */
070      class GlossyPaneBorder extends PaneBorder {
071        
072        protected void paintTitleBackground(JXTaskPane group, Graphics g) {
073          if (group.isSpecial()) {
074            g.setColor(specialTitleBackground);
075            g.fillRoundRect(
076              0,
077              0,
078              group.getWidth(),
079              getRoundHeight() * 2,
080              getRoundHeight(),
081              getRoundHeight());
082            g.fillRect(
083              0,
084              getRoundHeight(),
085              group.getWidth(),
086              getTitleHeight(group) - getRoundHeight());
087          } else {
088            Paint oldPaint = ((Graphics2D)g).getPaint();
089            GradientPaint gradient =
090              new GradientPaint(
091                0f,
092                0f, //group.getWidth() / 2,
093                titleBackgroundGradientStart,
094                0f, //group.getWidth(),
095                getTitleHeight(group),
096                titleBackgroundGradientEnd);
097                    
098            ((Graphics2D)g).setRenderingHint(
099              RenderingHints.KEY_COLOR_RENDERING,
100              RenderingHints.VALUE_COLOR_RENDER_QUALITY);
101            ((Graphics2D)g).setRenderingHint(
102              RenderingHints.KEY_INTERPOLATION,
103              RenderingHints.VALUE_INTERPOLATION_BILINEAR);
104            ((Graphics2D)g).setRenderingHint(
105              RenderingHints.KEY_RENDERING,
106              RenderingHints.VALUE_RENDER_QUALITY);
107            ((Graphics2D)g).setPaint(gradient);
108            
109            g.fillRoundRect(
110              0,
111              0,
112              group.getWidth(),
113              getRoundHeight() * 2,
114              getRoundHeight(),
115              getRoundHeight());
116            g.fillRect(
117              0,
118              getRoundHeight(),
119              group.getWidth(),
120              getTitleHeight(group) - getRoundHeight());
121            ((Graphics2D)g).setPaint(oldPaint);
122          }
123          
124          g.setColor(borderColor);
125          g.drawRoundRect(
126            0,
127            0,
128            group.getWidth() - 1,
129            getTitleHeight(group) + getRoundHeight(),
130            getRoundHeight(),
131            getRoundHeight());
132          g.drawLine(0, getTitleHeight(group) - 1, group.getWidth(), getTitleHeight(group) - 1);
133        }
134    
135        protected void paintExpandedControls(JXTaskPane group, Graphics g, int x,
136          int y, int width, int height) {
137          ((Graphics2D)g).setRenderingHint(
138            RenderingHints.KEY_ANTIALIASING,
139            RenderingHints.VALUE_ANTIALIAS_ON);
140          
141          paintOvalAroundControls(group, g, x, y, width, height);
142          g.setColor(getPaintColor(group));
143          paintChevronControls(group, g, x, y, width, height);
144          
145          ((Graphics2D)g).setRenderingHint(
146            RenderingHints.KEY_ANTIALIASING,
147            RenderingHints.VALUE_ANTIALIAS_OFF);
148        }
149    
150        @Override
151        protected boolean isMouseOverBorder() {
152          return true;
153        }
154    
155      }
156    
157    }