1 /*
2 * Copyright (c) 1997, 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
26 package javax.swing.plaf.basic;
27
28 import sun.awt.AppContext;
29
30 import java.awt.*;
31 import java.awt.event.*;
32
33 import javax.swing.*;
34 import javax.swing.border.*;
35 import javax.swing.plaf.*;
36 import javax.swing.text.View;
37
38
39
40 /**
41 * BasicToggleButton implementation
42 *
43 * @author Jeff Dinkins
44 */
45 public class BasicToggleButtonUI extends BasicButtonUI {
46
47 private static final Object BASIC_TOGGLE_BUTTON_UI_KEY = new Object();
48
49 private static final String propertyPrefix = "ToggleButton" + ".";
50
51 // ********************************
52 // Create PLAF
53 // ********************************
54
55 /**
56 * Returns an instance of {@code BasicToggleButtonUI}.
57 *
58 * @param b a component
59 * @return an instance of {@code BasicToggleButtonUI}
60 */
61 public static ComponentUI createUI(JComponent b) {
62 AppContext appContext = AppContext.getAppContext();
63 BasicToggleButtonUI toggleButtonUI =
64 (BasicToggleButtonUI) appContext.get(BASIC_TOGGLE_BUTTON_UI_KEY);
65 if (toggleButtonUI == null) {
66 toggleButtonUI = new BasicToggleButtonUI();
67 appContext.put(BASIC_TOGGLE_BUTTON_UI_KEY, toggleButtonUI);
68 }
69 return toggleButtonUI;
70 }
71
72 protected String getPropertyPrefix() {
73 return propertyPrefix;
74 }
75
76
77 // ********************************
78 // Paint Methods
79 // ********************************
80 public void paint(Graphics g, JComponent c) {
81 AbstractButton b = (AbstractButton) c;
82 ButtonModel model = b.getModel();
83
84 Dimension size = b.getSize();
85 FontMetrics fm = g.getFontMetrics();
86
87 Insets i = c.getInsets();
88
89 Rectangle viewRect = new Rectangle(size);
90
91 viewRect.x += i.left;
92 viewRect.y += i.top;
93 viewRect.width -= (i.right + viewRect.x);
94 viewRect.height -= (i.bottom + viewRect.y);
95
96 Rectangle iconRect = new Rectangle();
97 Rectangle textRect = new Rectangle();
98
99 Font f = c.getFont();
100 g.setFont(f);
101
102 // layout the text and icon
103 String text = SwingUtilities.layoutCompoundLabel(
104 c, fm, b.getText(), b.getIcon(),
105 b.getVerticalAlignment(), b.getHorizontalAlignment(),
106 b.getVerticalTextPosition(), b.getHorizontalTextPosition(),
107 viewRect, iconRect, textRect,
108 b.getText() == null ? 0 : b.getIconTextGap());
109
110 g.setColor(b.getBackground());
111
112 if (model.isArmed() && model.isPressed() || model.isSelected()) {
113 paintButtonPressed(g,b);
114 }
115
116 // Paint the Icon
117 if(b.getIcon() != null) {
118 paintIcon(g, b, iconRect);
119 }
120
121 // Draw the Text
122 if(text != null && !text.equals("")) {
123 View v = (View) c.getClientProperty(BasicHTML.propertyKey);
124 if (v != null) {
125 v.paint(g, textRect);
126 } else {
127 paintText(g, b, textRect, text);
128 }
129 }
130
131 // draw the dashed focus line.
132 if (b.isFocusPainted() && b.hasFocus()) {
133 paintFocus(g, b, viewRect, textRect, iconRect);
134 }
135 }
136
137 /**
138 * Paints an icon in the specified location.
139 *
140 * @param g an instance of {@code Graphics}
141 * @param b an instance of {@code Button}
142 * @param iconRect bounds of an icon
143 */
144 protected void paintIcon(Graphics g, AbstractButton b, Rectangle iconRect) {
145 ButtonModel model = b.getModel();
146 Icon icon = null;
147
148 if(!model.isEnabled()) {
149 if(model.isSelected()) {
150 icon = b.getDisabledSelectedIcon();
151 } else {
152 icon = b.getDisabledIcon();
153 }
154 } else if(model.isPressed() && model.isArmed()) {
155 icon = b.getPressedIcon();
156 if(icon == null) {
157 // Use selected icon
158 icon = b.getSelectedIcon();
159 }
160 } else if(model.isSelected()) {
161 if(b.isRolloverEnabled() && model.isRollover()) {
162 icon = b.getRolloverSelectedIcon();
163 if (icon == null) {
164 icon = b.getSelectedIcon();
165 }
166 } else {
167 icon = b.getSelectedIcon();
168 }
169 } else if(b.isRolloverEnabled() && model.isRollover()) {
170 icon = b.getRolloverIcon();
171 }
172
173 if(icon == null) {
174 icon = b.getIcon();
175 }
176
177 icon.paintIcon(b, g, iconRect.x, iconRect.y);
178 }
179
180 /**
181 * Overriden so that the text will not be rendered as shifted for
182 * Toggle buttons and subclasses.
183 */
184 protected int getTextShiftOffset() {
185 return 0;
186 }
187
188 }