1 /* GNULookAndFeel.java -- An example of using the javax.swing UI.
2    Copyright (C) 2005  Free Software Foundation, Inc.
3 
4 This file is part of GNU Classpath examples.
5 
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10 
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 General Public License for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING.  If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 02110-1301 USA.
20 */
21 
22 package gnu.javax.swing.plaf.gnu;
23 
24 import java.awt.Color;
25 import java.awt.Component;
26 import java.awt.Graphics;
27 
28 import javax.swing.Icon;
29 import javax.swing.ImageIcon;
30 import javax.swing.JCheckBox;
31 import javax.swing.JRadioButton;
32 import javax.swing.UIDefaults;
33 import javax.swing.plaf.ColorUIResource;
34 import javax.swing.plaf.IconUIResource;
35 import javax.swing.plaf.basic.BasicLookAndFeel;
36 
37 public class GNULookAndFeel extends BasicLookAndFeel
38 {
39 
40   static Color blueGray = new Color(0xdc, 0xda, 0xd5);
41 
isNativeLookAndFeel()42   public boolean isNativeLookAndFeel()    { return true; }
isSupportedLookAndFeel()43   public boolean isSupportedLookAndFeel() { return true; }
getDescription()44   public String getDescription()          { return "GNU Look and Feel"; }
getID()45   public String getID()                   { return "GNULookAndFeel"; }
getName()46   public String getName()                 { return "GNU"; }
47 
48   static UIDefaults LAF_defaults;
49 
50   private final static String iconspath = "/gnu/javax/swing/plaf/gtk/icons/";
51 
getDefaults()52   public UIDefaults getDefaults()
53   {
54     if (LAF_defaults == null)
55       {
56         LAF_defaults = super.getDefaults();
57         Object[] myDefaults = new Object[] {
58           "Button.background", new ColorUIResource(blueGray),
59           "CheckBox.background", new ColorUIResource(blueGray),
60           "CheckBoxMenuItem.background", new ColorUIResource(blueGray),
61           "ToolBar.background", new ColorUIResource(blueGray),
62           "Panel.background", new ColorUIResource(blueGray),
63           "Slider.background", new ColorUIResource(blueGray),
64           "OptionPane.background", new ColorUIResource(blueGray),
65           "ProgressBar.background", new ColorUIResource(blueGray),
66           "TabbedPane.background", new ColorUIResource(blueGray),
67           "Label.background", new ColorUIResource(blueGray),
68           "Menu.background", new ColorUIResource(blueGray),
69           "MenuBar.background", new ColorUIResource(blueGray),
70           "MenuItem.background", new ColorUIResource(blueGray),
71           "ScrollBar.background", new ColorUIResource(blueGray),
72           "CheckBox.icon", new CheckBoxIcon(),
73           "RadioButton.icon", new RadioButtonIcon(),
74           "Tree.hash", new ColorUIResource(Color.black),
75 
76         "Tree.closedIcon",
77           new IconUIResource(new ImageIcon
78                              (getClass().getResource
79                               (iconspath + "TreeClosed.png"))),
80           "Tree.leafIcon",
81           new IconUIResource(new ImageIcon
82                              (getClass().getResource
83                               (iconspath + "TreeLeaf.png"))),
84           "Tree.openIcon",
85           new IconUIResource(new ImageIcon
86                              (getClass().getResource
87                               (iconspath + "TreeOpen.png"))),
88         };
89         LAF_defaults.putDefaults(myDefaults);
90       }
91     return LAF_defaults;
92   }
93 
94   /**
95    * The icon used for CheckBoxes in the BasicLookAndFeel. This is an empty
96    * icon with a size of 13x13 pixels.
97    */
98   static class CheckBoxIcon
99     implements Icon
100   {
101     /**
102      * Returns the height of the icon. The BasicLookAndFeel CheckBox icon
103      * has a height of 13 pixels.
104      *
105      * @return the height of the icon
106      */
getIconHeight()107     public int getIconHeight()
108     {
109       return 13;
110     }
111 
112     /**
113      * Returns the width of the icon. The BasicLookAndFeel CheckBox icon
114      * has a width of 13 pixels.
115      *
116      * @return the height of the icon
117      */
getIconWidth()118     public int getIconWidth()
119     {
120       return 13;
121     }
122 
123     /**
124      * Paints the icon. The BasicLookAndFeel CheckBox icon is empty and does
125      * not need to be painted.
126      *
127      * @param c the component to be painted
128      * @param g the Graphics context to be painted with
129      * @param x the x position of the icon
130      * @param y the y position of the icon
131      */
paintIcon(Component c, Graphics g, int x, int y)132     public void paintIcon(Component c, Graphics g, int x, int y)
133     {
134       Color save = g.getColor();
135       g.setColor(c.getForeground());
136       g.drawRect(x, y, getIconWidth(), getIconHeight());
137 
138       JCheckBox item = (JCheckBox) c;
139       if (item.isSelected())
140         {
141           g.drawLine(3 + x, 5 + y, 3 + x, 9 + y);
142           g.drawLine(4 + x, 5 + y, 4 + x, 9 + y);
143           g.drawLine(5 + x, 7 + y, 9 + x, 3 + y);
144           g.drawLine(5 + x, 8 + y, 9 + x, 4 + y);
145         }
146 
147       g.setColor(save);
148     }
149   }
150 
151   /**
152    * The icon used for RadioButtons in the GNULookAndFeel. This is an empty
153    * icon with a size of 13x13 pixels.
154    */
155   static class RadioButtonIcon
156     implements Icon
157   {
158     /**
159      * Returns the height of the icon. The GNULookAndFeel RadioButton icon
160      * has a height of 13 pixels.
161      *
162      * @return the height of the icon
163      */
getIconHeight()164     public int getIconHeight()
165     {
166       return 13;
167     }
168 
169     /**
170      * Returns the width of the icon. The GNULookAndFeel RadioButton icon
171      * has a width of 13 pixels.
172      *
173      * @return the height of the icon
174      */
getIconWidth()175     public int getIconWidth()
176     {
177       return 13;
178     }
179 
180     /**
181      * Paints the icon. The GNULookAndFeel RadioButton icon is empty and does
182      * not need to be painted.
183      *
184      * @param c the component to be painted
185      * @param g the Graphics context to be painted with
186      * @param x the x position of the icon
187      * @param y the y position of the icon
188      */
paintIcon(Component c, Graphics g, int x, int y)189     public void paintIcon(Component c, Graphics g, int x, int y)
190     {
191       Color savedColor = g.getColor();
192       JRadioButton b = (JRadioButton) c;
193 
194       // draw outer circle
195       if (b.isEnabled())
196         g.setColor(Color.GRAY);
197       else
198         g.setColor(Color.GRAY);
199       g.drawLine(x + 2, y + 1, x + 3, y + 1);
200       g.drawLine(x + 4, y, x + 7, y);
201       g.drawLine(x + 8, y + 1, x + 9, y + 1);
202       g.drawLine(x + 10, y + 2, x + 10, y + 3);
203       g.drawLine(x + 11, y + 4, x + 11, y + 7);
204       g.drawLine(x + 10, y + 8, x + 10, y + 9);
205       g.drawLine(x + 8, y + 10, x + 9, y + 10);
206       g.drawLine(x + 4, y + 11, x + 7, y + 11);
207       g.drawLine(x + 2, y + 10, x + 3, y + 10);
208       g.drawLine(x + 1, y + 9, x + 1, y + 8);
209       g.drawLine(x, y + 7, x, y + 4);
210       g.drawLine(x + 1, y + 2, x + 1, y + 3);
211 
212       if (b.getModel().isArmed())
213         {
214           g.setColor(Color.GRAY);
215           g.drawLine(x + 4, y + 1, x + 7, y + 1);
216           g.drawLine(x + 4, y + 10, x + 7, y + 10);
217           g.drawLine(x + 1, y + 4, x + 1, y + 7);
218           g.drawLine(x + 10, y + 4, x + 10, y + 7);
219           g.fillRect(x + 2, y + 2, 8, 8);
220         }
221       else
222         {
223           // only draw inner highlight if not filled
224           if (b.isEnabled())
225             {
226               g.setColor(Color.WHITE);
227 
228               g.drawLine(x + 2, y + 8, x + 2, y + 9);
229               g.drawLine(x + 1, y + 4, x + 1, y + 7);
230               g.drawLine(x + 2, y + 2, x + 2, y + 3);
231               g.drawLine(x + 3, y + 2, x + 3, y + 2);
232               g.drawLine(x + 4, y + 1, x + 7, y + 1);
233               g.drawLine(x + 8, y + 2, x + 9, y + 2);
234             }
235         }
236 
237       // draw outer highlight
238       if (b.isEnabled())
239         {
240           g.setColor(Color.WHITE);
241 
242           // outer
243           g.drawLine(x + 10, y + 1, x + 10, y + 1);
244           g.drawLine(x + 11, y + 2, x + 11, y + 3);
245           g.drawLine(x + 12, y + 4, x + 12, y + 7);
246           g.drawLine(x + 11, y + 8, x + 11, y + 9);
247           g.drawLine(x + 10, y + 10, x + 10, y + 10);
248           g.drawLine(x + 8, y + 11, x + 9, y + 11);
249           g.drawLine(x + 4, y + 12, x + 7, y + 12);
250           g.drawLine(x + 2, y + 11, x + 3, y + 11);
251         }
252 
253       if (b.isSelected())
254         {
255           if (b.isEnabled())
256             g.setColor(Color.BLACK);
257           else
258             g.setColor(Color.GRAY);
259           g.drawLine(x + 4, y + 3, x + 7, y + 3);
260           g.fillRect(x + 3, y + 4, 6, 4);
261           g.drawLine(x + 4, y + 8, x + 7, y + 8);
262         }
263       g.setColor(savedColor);
264     }
265   }
266 }
267