1 /*
   2  * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javax.swing.plaf.synth;
  27 
  28 
  29 import javax.swing.*;
  30 import javax.swing.colorchooser.*;
  31 import javax.swing.plaf.*;
  32 import javax.swing.plaf.basic.BasicColorChooserUI;
  33 import java.awt.*;
  34 import java.beans.PropertyChangeEvent;
  35 import java.beans.PropertyChangeListener;
  36 
  37 
  38 /**
  39  * Provides the Synth L&F UI delegate for
  40  * {@link javax.swing.JColorChooser}.
  41  *
  42  * @author Tom Santos
  43  * @author Steve Wilson
  44  * @since 1.7
  45  */
  46 public class SynthColorChooserUI extends BasicColorChooserUI implements
  47         PropertyChangeListener, SynthUI {
  48     private SynthStyle style;
  49 
  50     /**
  51      * Creates a new UI object for the given component.
  52      *
  53      * @param c component to create UI object for
  54      * @return the UI object
  55      */
  56     public static ComponentUI createUI(JComponent c) {
  57         return new SynthColorChooserUI();
  58     }
  59 
  60     /**
  61      * @inheritDoc
  62      */
  63     @Override
  64     protected AbstractColorChooserPanel[] createDefaultChoosers() {
  65         SynthContext context = getContext(chooser, ENABLED);
  66         AbstractColorChooserPanel[] panels = (AbstractColorChooserPanel[])
  67                      context.getStyle().get(context, "ColorChooser.panels");
  68         context.dispose();
  69 
  70         if (panels == null) {
  71             panels = ColorChooserComponentFactory.getDefaultChooserPanels();
  72         }
  73         return panels;
  74     }
  75 
  76     /**
  77      * @inheritDoc
  78      */
  79     @Override
  80     protected void installDefaults() {
  81         super.installDefaults();
  82         updateStyle(chooser);
  83     }
  84 
  85     private void updateStyle(JComponent c) {
  86         SynthContext context = getContext(c, ENABLED);
  87         style = SynthLookAndFeel.updateStyle(context, this);
  88         context.dispose();
  89     }
  90 
  91     /**
  92      * @inheritDoc
  93      */
  94     @Override
  95     protected void uninstallDefaults() {
  96         SynthContext context = getContext(chooser, ENABLED);
  97 
  98         style.uninstallDefaults(context);
  99         context.dispose();
 100         style = null;
 101         super.uninstallDefaults();
 102     }
 103 
 104     /**
 105      * @inheritDoc
 106      */
 107     @Override
 108     protected void installListeners() {
 109         super.installListeners();
 110         chooser.addPropertyChangeListener(this);
 111     }
 112 
 113     /**
 114      * @inheritDoc
 115      */
 116     @Override
 117     protected void uninstallListeners() {
 118         chooser.removePropertyChangeListener(this);
 119         super.uninstallListeners();
 120     }
 121 
 122     /**
 123      * @inheritDoc
 124      */
 125     @Override
 126     public SynthContext getContext(JComponent c) {
 127         return getContext(c, getComponentState(c));
 128     }
 129 
 130     private SynthContext getContext(JComponent c, int state) {
 131         return SynthContext.getContext(SynthContext.class, c,
 132                     SynthLookAndFeel.getRegion(c), style, state);
 133     }
 134 
 135     private int getComponentState(JComponent c) {
 136         return SynthLookAndFeel.getComponentState(c);
 137     }
 138 
 139     /**
 140      * Notifies this UI delegate to repaint the specified component.
 141      * This method paints the component background, then calls
 142      * the {@link #paint(SynthContext,Graphics)} method.
 143      *
 144      * <p>In general, this method does not need to be overridden by subclasses.
 145      * All Look and Feel rendering code should reside in the {@code paint} method.
 146      *
 147      * @param g the {@code Graphics} object used for painting
 148      * @param c the component being painted
 149      * @see #paint(SynthContext,Graphics)
 150      */
 151     @Override
 152     public void update(Graphics g, JComponent c) {
 153         SynthContext context = getContext(c);
 154 
 155         SynthLookAndFeel.update(context, g);
 156         context.getPainter().paintColorChooserBackground(context, g, 0, 0,
 157                                                   c.getWidth(), c.getHeight());
 158         paint(context, g);
 159         context.dispose();
 160     }
 161 
 162     /**
 163      * Paints the specified component according to the Look and Feel.
 164      * <p>This method is not used by Synth Look and Feel.
 165      * Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
 166      *
 167      * @param g the {@code Graphics} object used for painting
 168      * @param c the component being painted
 169      * @see #paint(SynthContext,Graphics)
 170      */
 171     @Override
 172     public void paint(Graphics g, JComponent c) {
 173         SynthContext context = getContext(c);
 174 
 175         paint(context, g);
 176         context.dispose();
 177     }
 178 
 179     /**
 180      * Paints the specified component.
 181      * This implementation does not perform any actions.
 182      *
 183      * @param context context for the component being painted
 184      * @param g the {@code Graphics} object used for painting
 185      * @see #update(Graphics,JComponent)
 186      */
 187     protected void paint(SynthContext context, Graphics g) {
 188     }
 189 
 190     /**
 191      * @inheritDoc
 192      */
 193     @Override
 194     public void paintBorder(SynthContext context, Graphics g, int x,
 195                             int y, int w, int h) {
 196         context.getPainter().paintColorChooserBorder(context, g, x, y,w,h);
 197     }
 198 
 199     /**
 200      * @inheritDoc
 201      */
 202     @Override
 203     public void propertyChange(PropertyChangeEvent e) {
 204         if (SynthLookAndFeel.shouldUpdateStyle(e)) {
 205             updateStyle((JColorChooser)e.getSource());
 206         }
 207     }
 208 }