1 /*
2 * Copyright (c) 1998, 2019, 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.metal;
27
28 import sun.swing.SwingUtilities2;
29 import sun.awt.AppContext;
30
31 import java.awt.*;
32 import java.awt.event.*;
33 import java.lang.ref.*;
34 import java.util.*;
35 import javax.swing.plaf.basic.BasicToggleButtonUI;
36
37 import javax.swing.*;
38 import javax.swing.border.*;
39 import javax.swing.plaf.*;
40 import javax.swing.*;
41
42 import java.io.Serializable;
43
44 /**
45 * MetalToggleButton implementation
46 * <p>
47 * <strong>Warning:</strong>
48 * Serialized objects of this class will not be compatible with
49 * future Swing releases. The current serialization support is
50 * appropriate for short term storage or RMI between applications running
51 * the same version of Swing. As of 1.4, support for long term storage
52 * of all JavaBeans
53 * has been added to the <code>java.beans</code> package.
54 * Please see {@link java.beans.XMLEncoder}.
55 *
56 * @author Tom Santos
57 */
58 @SuppressWarnings("serial") // Same-version serialization only
59 public class MetalToggleButtonUI extends BasicToggleButtonUI {
60
61 private static final Object METAL_TOGGLE_BUTTON_UI_KEY = new Object();
62
63 /**
64 * The color of a focused toggle button.
65 */
66 protected Color focusColor;
67
68 /**
69 * The color of a selected button.
70 */
71 protected Color selectColor;
72
73 /**
74 * The color of a disabled text.
75 */
76 protected Color disabledTextColor;
77
78 private boolean defaults_initialized = false;
79
80 // ********************************
81 // Create PLAF
82 // ********************************
83
84 /**
85 * Constructs the {@code MetalToogleButtonUI}.
86 *
87 * @param b a component
88 * @return the {@code MetalToogleButtonUI}.
89 */
90 public static ComponentUI createUI(JComponent b) {
91 AppContext appContext = AppContext.getAppContext();
92 MetalToggleButtonUI metalToggleButtonUI =
93 (MetalToggleButtonUI) appContext.get(METAL_TOGGLE_BUTTON_UI_KEY);
94 if (metalToggleButtonUI == null) {
95 metalToggleButtonUI = new MetalToggleButtonUI();
96 appContext.put(METAL_TOGGLE_BUTTON_UI_KEY, metalToggleButtonUI);
97 }
98 return metalToggleButtonUI;
99 }
100
101 // ********************************
102 // Install Defaults
103 // ********************************
104 public void installDefaults(AbstractButton b) {
105 super.installDefaults(b);
106 if(!defaults_initialized) {
107 focusColor = UIManager.getColor(getPropertyPrefix() + "focus");
108 selectColor = UIManager.getColor(getPropertyPrefix() + "select");
109 disabledTextColor = UIManager.getColor(getPropertyPrefix() + "disabledText");
110 defaults_initialized = true;
111 }
112 }
113
114 protected void uninstallDefaults(AbstractButton b) {
115 super.uninstallDefaults(b);
116 defaults_initialized = false;
117 }
118
119 // ********************************
120 // Default Accessors
121 // ********************************
122 /**
123 * Returns the color of a selected button.
124 *
125 * @return the color of a selected button
126 */
127 protected Color getSelectColor() {
128 return selectColor;
129 }
130
131 /**
132 * Returns the color of a disabled text.
133 *
134 * @return the color of a disabled text
135 */
136 protected Color getDisabledTextColor() {
137 return disabledTextColor;
138 }
139
140 /**
141 * Returns the color of a focused toggle button.
142 *
143 * @return the color of a focused toggle button
144 */
145 protected Color getFocusColor() {
146 return focusColor;
147 }
148
149
150 // ********************************
151 // Paint Methods
152 // ********************************
153 /**
154 * If necessary paints the background of the component, then invokes
155 * <code>paint</code>.
156 *
157 * @param g Graphics to paint to
158 * @param c JComponent painting on
159 * @throws NullPointerException if <code>g</code> or <code>c</code> is
160 * null
161 * @see javax.swing.plaf.ComponentUI#update
162 * @see javax.swing.plaf.ComponentUI#paint
163 * @since 1.5
164 */
165 public void update(Graphics g, JComponent c) {
166 AbstractButton button = (AbstractButton)c;
167 if ((c.getBackground() instanceof UIResource) &&
168 button.isContentAreaFilled() && c.isEnabled()) {
169 ButtonModel model = button.getModel();
170 if (!MetalUtils.isToolBarButton(c)) {
171 if (!model.isArmed() && !model.isPressed() &&
172 MetalUtils.drawGradient(
173 c, g, "ToggleButton.gradient", 0, 0, c.getWidth(),
174 c.getHeight(), true)) {
175 paint(g, c);
176 return;
177 }
178 }
179 else if ((model.isRollover() || model.isSelected()) &&
180 MetalUtils.drawGradient(c, g, "ToggleButton.gradient",
181 0, 0, c.getWidth(), c.getHeight(), true)) {
182 paint(g, c);
183 return;
184 }
185 }
186 super.update(g, c);
187 }
188
189 protected void paintButtonPressed(Graphics g, AbstractButton b) {
190 if ( b.isContentAreaFilled() ) {
191 g.setColor(getSelectColor());
192 g.fillRect(0, 0, b.getWidth(), b.getHeight());
193 }
194 }
195
196 protected void paintText(Graphics g, JComponent c, Rectangle textRect, String text) {
197 AbstractButton b = (AbstractButton) c;
198 ButtonModel model = b.getModel();
199 FontMetrics fm = SwingUtilities2.getFontMetrics(b, g);
200 int mnemIndex = b.getDisplayedMnemonicIndex();
201
202 /* Draw the Text */
203 if(model.isEnabled()) {
204 /*** paint the text normally */
205 g.setColor(b.getForeground());
206 }
207 else {
208 /*** paint the text disabled ***/
209 if (model.isSelected()) {
210 g.setColor(c.getBackground());
211 } else {
212 g.setColor(getDisabledTextColor());
213 }
214 }
215 SwingUtilities2.drawStringUnderlineCharAt(c, g, text, mnemIndex,
216 textRect.x, textRect.y + fm.getAscent());
217 }
218
219 protected void paintFocus(Graphics g, AbstractButton b,
220 Rectangle viewRect, Rectangle textRect, Rectangle iconRect){
221
222 Rectangle focusRect = new Rectangle();
223 String text = b.getText();
224 boolean isIcon = b.getIcon() != null;
225
226 // If there is text
227 if ( text != null && !text.isEmpty()) {
228 if ( !isIcon ) {
229 focusRect.setBounds( textRect );
230 }
231 else {
232 focusRect.setBounds( iconRect.union( textRect ) );
233 }
234 }
235 // If there is an icon and no text
236 else if ( isIcon ) {
237 focusRect.setBounds( iconRect );
238 }
239
240 g.setColor(getFocusColor());
241 g.drawRect((focusRect.x-1), (focusRect.y-1),
242 focusRect.width+1, focusRect.height+1);
243
244 }
245
246 /**
247 * Paints the appropriate icon of the button <code>b</code> in the
248 * space <code>iconRect</code>.
249 *
250 * @param g Graphics to paint to
251 * @param b Button to render for
252 * @param iconRect space to render in
253 * @throws NullPointerException if any of the arguments are null.
254 * @since 1.5
255 */
256 protected void paintIcon(Graphics g, AbstractButton b, Rectangle iconRect) {
257 super.paintIcon(g, b, iconRect);
258 }
259 }