1/*
2 * Copyright (c) 1998, 2014, 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
26package javax.swing.plaf.metal;
27
28import sun.swing.SwingUtilities2;
29import sun.awt.AppContext;
30
31import java.awt.*;
32import java.awt.event.*;
33import javax.swing.*;
34import javax.swing.plaf.basic.*;
35import javax.swing.border.*;
36import javax.swing.plaf.*;
37import java.io.Serializable;
38import javax.swing.text.View;
39
40
41/**
42 * RadioButtonUI implementation for MetalRadioButtonUI
43 * <p>
44 * <strong>Warning:</strong>
45 * Serialized objects of this class will not be compatible with
46 * future Swing releases. The current serialization support is
47 * appropriate for short term storage or RMI between applications running
48 * the same version of Swing.  As of 1.4, support for long term storage
49 * of all JavaBeans&trade;
50 * has been added to the <code>java.beans</code> package.
51 * Please see {@link java.beans.XMLEncoder}.
52 *
53 * @author Michael C. Albers (Metal modifications)
54 * @author Jeff Dinkins (original BasicRadioButtonCode)
55 */
56@SuppressWarnings("serial") // Same-version serialization only
57public class MetalRadioButtonUI extends BasicRadioButtonUI {
58
59    private static final Object METAL_RADIO_BUTTON_UI_KEY = new Object();
60
61    /**
62     * The color of the focused radio button.
63     */
64    protected Color focusColor;
65
66    /**
67     * The color of the selected radio button.
68     */
69    protected Color selectColor;
70
71    /**
72     * The color of a disabled text.
73     */
74    protected Color disabledTextColor;
75
76    private boolean defaults_initialized = false;
77
78    // ********************************
79    //        Create PlAF
80    // ********************************
81
82    /**
83     * Returns an instance of {@code MetalRadioButtonUI}.
84     *
85     * @param c a component
86     * @return an instance of {@code MetalRadioButtonUI}
87     */
88    public static ComponentUI createUI(JComponent c) {
89        AppContext appContext = AppContext.getAppContext();
90        MetalRadioButtonUI metalRadioButtonUI =
91                (MetalRadioButtonUI) appContext.get(METAL_RADIO_BUTTON_UI_KEY);
92        if (metalRadioButtonUI == null) {
93            metalRadioButtonUI = new MetalRadioButtonUI();
94            appContext.put(METAL_RADIO_BUTTON_UI_KEY, metalRadioButtonUI);
95        }
96        return metalRadioButtonUI;
97    }
98
99    // ********************************
100    //        Install Defaults
101    // ********************************
102    public void installDefaults(AbstractButton b) {
103        super.installDefaults(b);
104        if(!defaults_initialized) {
105            focusColor = UIManager.getColor(getPropertyPrefix() + "focus");
106            selectColor = UIManager.getColor(getPropertyPrefix() + "select");
107            disabledTextColor = UIManager.getColor(getPropertyPrefix() + "disabledText");
108            defaults_initialized = true;
109        }
110        LookAndFeel.installProperty(b, "opaque", Boolean.TRUE);
111    }
112
113    protected void uninstallDefaults(AbstractButton b) {
114        super.uninstallDefaults(b);
115        defaults_initialized = false;
116    }
117
118    // ********************************
119    //         Default Accessors
120    // ********************************
121
122    /**
123     * Returns the color of the selected {@code JRadioButton}.
124     *
125     * @return the color of the selected {@code JRadioButton}
126     */
127    protected Color getSelectColor() {
128        return selectColor;
129    }
130
131    /**
132     * Returns the color of the disabled text.
133     *
134     * @return the color of the disabled text
135     */
136    protected Color getDisabledTextColor() {
137        return disabledTextColor;
138    }
139
140    /**
141     * Returns the color of the focused {@code JRadioButton}.
142     *
143     * @return the color of the focused {@code JRadioButton}
144     */
145    protected Color getFocusColor() {
146        return focusColor;
147    }
148
149
150    // ********************************
151    //        Paint Methods
152    // ********************************
153    public synchronized void paint(Graphics g, JComponent c) {
154
155        AbstractButton b = (AbstractButton) c;
156        ButtonModel model = b.getModel();
157
158        Dimension size = c.getSize();
159
160        int w = size.width;
161        int h = size.height;
162
163        Font f = c.getFont();
164        g.setFont(f);
165        FontMetrics fm = SwingUtilities2.getFontMetrics(c, g, f);
166
167        Rectangle viewRect = new Rectangle(size);
168        Rectangle iconRect = new Rectangle();
169        Rectangle textRect = new Rectangle();
170
171        Insets i = c.getInsets();
172        viewRect.x += i.left;
173        viewRect.y += i.top;
174        viewRect.width -= (i.right + viewRect.x);
175        viewRect.height -= (i.bottom + viewRect.y);
176
177        Icon altIcon = b.getIcon();
178        Icon selectedIcon = null;
179        Icon disabledIcon = null;
180
181        String text = SwingUtilities.layoutCompoundLabel(
182            c, fm, b.getText(), altIcon != null ? altIcon : getDefaultIcon(),
183            b.getVerticalAlignment(), b.getHorizontalAlignment(),
184            b.getVerticalTextPosition(), b.getHorizontalTextPosition(),
185            viewRect, iconRect, textRect, b.getIconTextGap());
186
187        // fill background
188        if(c.isOpaque()) {
189            g.setColor(b.getBackground());
190            g.fillRect(0,0, size.width, size.height);
191        }
192
193
194        // Paint the radio button
195        if(altIcon != null) {
196
197            if(!model.isEnabled()) {
198                if(model.isSelected()) {
199                   altIcon = b.getDisabledSelectedIcon();
200                } else {
201                   altIcon = b.getDisabledIcon();
202                }
203            } else if(model.isPressed() && model.isArmed()) {
204                altIcon = b.getPressedIcon();
205                if(altIcon == null) {
206                    // Use selected icon
207                    altIcon = b.getSelectedIcon();
208                }
209            } else if(model.isSelected()) {
210                if(b.isRolloverEnabled() && model.isRollover()) {
211                        altIcon = b.getRolloverSelectedIcon();
212                        if (altIcon == null) {
213                                altIcon = b.getSelectedIcon();
214                        }
215                } else {
216                        altIcon = b.getSelectedIcon();
217                }
218            } else if(b.isRolloverEnabled() && model.isRollover()) {
219                altIcon = b.getRolloverIcon();
220            }
221
222            if(altIcon == null) {
223                altIcon = b.getIcon();
224            }
225
226            altIcon.paintIcon(c, g, iconRect.x, iconRect.y);
227
228        } else {
229            getDefaultIcon().paintIcon(c, g, iconRect.x, iconRect.y);
230        }
231
232
233        // Draw the Text
234        if(text != null) {
235            View v = (View) c.getClientProperty(BasicHTML.propertyKey);
236            if (v != null) {
237                v.paint(g, textRect);
238            } else {
239               int mnemIndex = b.getDisplayedMnemonicIndex();
240               if(model.isEnabled()) {
241                   // *** paint the text normally
242                   g.setColor(b.getForeground());
243               } else {
244                   // *** paint the text disabled
245                   g.setColor(getDisabledTextColor());
246               }
247               SwingUtilities2.drawStringUnderlineCharAt(c,g,text,
248                       mnemIndex, textRect.x, textRect.y + fm.getAscent());
249           }
250           if(b.hasFocus() && b.isFocusPainted() &&
251              textRect.width > 0 && textRect.height > 0 ) {
252               paintFocus(g,textRect,size);
253           }
254        }
255    }
256
257    protected void paintFocus(Graphics g, Rectangle t, Dimension d){
258        g.setColor(getFocusColor());
259        g.drawRect(t.x-1, t.y-1, t.width+1, t.height+1);
260    }
261}
262