1 /*
2 * Copyright (c) 2002, 2010, 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 import java.beans.*;
29 import javax.swing.*;
30 import java.awt.Dimension;
31 import java.awt.Graphics;
32 import java.awt.Insets;
33 import javax.swing.plaf.ComponentUI;
34 import javax.swing.plaf.SeparatorUI;
35 import javax.swing.plaf.UIResource;
36 import javax.swing.plaf.DimensionUIResource;
37
38 /**
39 * Provides the Synth L&F UI delegate for
40 * {@link javax.swing.JSeparator}.
41 *
42 * @author Shannon Hickey
43 * @author Joshua Outwater
44 * @since 1.7
45 */
46 public class SynthSeparatorUI extends SeparatorUI
47 implements 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 SynthSeparatorUI();
58 }
59
60 /**
61 * @inheritDoc
62 */
63 @Override
64 public void installUI(JComponent c) {
65 installDefaults((JSeparator)c);
66 installListeners((JSeparator)c);
67 }
68
69 /**
70 * @inheritDoc
71 */
72 @Override
73 public void uninstallUI(JComponent c) {
74 uninstallListeners((JSeparator)c);
75 uninstallDefaults((JSeparator)c);
76 }
77
78 /**
79 * Installs default setting. This method is called when a
80 * {@code LookAndFeel} is installed.
81 */
82 public void installDefaults(JSeparator c) {
83 updateStyle(c);
84 }
85
86 private void updateStyle(JSeparator sep) {
87 SynthContext context = getContext(sep, ENABLED);
88 SynthStyle oldStyle = style;
89
90 style = SynthLookAndFeel.updateStyle(context, this);
91
92 if (style != oldStyle) {
93 if (sep instanceof JToolBar.Separator) {
94 Dimension size = ((JToolBar.Separator)sep).getSeparatorSize();
95 if (size == null || size instanceof UIResource) {
96 size = (DimensionUIResource)style.get(
97 context, "ToolBar.separatorSize");
98 if (size == null) {
99 size = new DimensionUIResource(10, 10);
100 }
101 ((JToolBar.Separator)sep).setSeparatorSize(size);
102 }
103 }
104 }
105
106 context.dispose();
107 }
108
109 /**
110 * Uninstalls default setting. This method is called when a
111 * {@code LookAndFeel} is uninstalled.
112 */
113 public void uninstallDefaults(JSeparator c) {
114 SynthContext context = getContext(c, ENABLED);
115
116 style.uninstallDefaults(context);
117 context.dispose();
118 style = null;
119 }
120
121 /**
122 * Installs listeners. This method is called when a
123 * {@code LookAndFeel} is installed.
124 */
125 public void installListeners(JSeparator c) {
126 c.addPropertyChangeListener(this);
127 }
128
129 /**
130 * Uninstalls listeners. This method is called when a
131 * {@code LookAndFeel} is uninstalled.
132 */
133 public void uninstallListeners(JSeparator c) {
134 c.removePropertyChangeListener(this);
135 }
136
137 /**
138 * Notifies this UI delegate to repaint the specified component.
139 * This method paints the component background, then calls
140 * the {@link #paint(SynthContext,Graphics)} method.
141 *
142 * <p>In general, this method does not need to be overridden by subclasses.
143 * All Look and Feel rendering code should reside in the {@code paint} method.
144 *
145 * @param g the {@code Graphics} object used for painting
146 * @param c the component being painted
147 * @see #paint(SynthContext,Graphics)
148 */
149 @Override
150 public void update(Graphics g, JComponent c) {
151 SynthContext context = getContext(c);
152
153 JSeparator separator = (JSeparator)context.getComponent();
154 SynthLookAndFeel.update(context, g);
155 context.getPainter().paintSeparatorBackground(context,
156 g, 0, 0, c.getWidth(), c.getHeight(),
157 separator.getOrientation());
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 *
182 * @param context context for the component being painted
183 * @param g the {@code Graphics} object used for painting
184 * @see #update(Graphics,JComponent)
185 */
186 protected void paint(SynthContext context, Graphics g) {
187 JSeparator separator = (JSeparator)context.getComponent();
188 context.getPainter().paintSeparatorForeground(context, g, 0, 0,
189 separator.getWidth(), separator.getHeight(),
190 separator.getOrientation());
191 }
192
193 /**
194 * @inheritDoc
195 */
196 @Override
197 public void paintBorder(SynthContext context, Graphics g, int x,
198 int y, int w, int h) {
199 JSeparator separator = (JSeparator)context.getComponent();
200 context.getPainter().paintSeparatorBorder(context, g, x, y, w, h,
201 separator.getOrientation());
202 }
203
204 /**
205 * @inheritDoc
206 */
207 @Override
208 public Dimension getPreferredSize(JComponent c) {
209 SynthContext context = getContext(c);
210
211 int thickness = style.getInt(context, "Separator.thickness", 2);
212 Insets insets = c.getInsets();
213 Dimension size;
214
215 if (((JSeparator)c).getOrientation() == JSeparator.VERTICAL) {
216 size = new Dimension(insets.left + insets.right + thickness,
217 insets.top + insets.bottom);
218 } else {
219 size = new Dimension(insets.left + insets.right,
220 insets.top + insets.bottom + thickness);
221 }
222 context.dispose();
223 return size;
224 }
225
226 /**
227 * @inheritDoc
228 */
229 @Override
230 public Dimension getMinimumSize(JComponent c) {
231 return getPreferredSize(c);
232 }
233
234 /**
235 * @inheritDoc
236 */
237 @Override
238 public Dimension getMaximumSize(JComponent c) {
239 return new Dimension(Short.MAX_VALUE, Short.MAX_VALUE);
240 }
241
242 /**
243 * @inheritDoc
244 */
245 @Override
246 public SynthContext getContext(JComponent c) {
247 return getContext(c, SynthLookAndFeel.getComponentState(c));
248 }
249
250 private SynthContext getContext(JComponent c, int state) {
251 return SynthContext.getContext(SynthContext.class, c,
252 SynthLookAndFeel.getRegion(c), style, state);
253 }
254
255 public void propertyChange(PropertyChangeEvent evt) {
256 if (SynthLookAndFeel.shouldUpdateStyle(evt)) {
257 updateStyle((JSeparator)evt.getSource());
258 }
259 }
260 }