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.awt.*;
29 import java.beans.*;
30 import javax.swing.*;
31 import javax.swing.plaf.*;
32 import javax.swing.plaf.basic.*;
33 import sun.swing.DefaultLookup;
34
35 /**
36 * Provides the Synth L&F UI delegate for
37 * {@link javax.swing.JOptionPane}.
38 *
39 * @author James Gosling
40 * @author Scott Violet
41 * @author Amy Fowler
42 * @since 1.7
43 */
44 public class SynthOptionPaneUI extends BasicOptionPaneUI implements
45 PropertyChangeListener, SynthUI {
46 private SynthStyle style;
47
48 /**
49 * Creates a new UI object for the given component.
50 *
51 * @param x component to create UI object for
52 * @return the UI object
53 */
54 public static ComponentUI createUI(JComponent x) {
55 return new SynthOptionPaneUI();
56 }
57
58 /**
59 * @inheritDoc
60 */
61 @Override
62 protected void installDefaults() {
63 updateStyle(optionPane);
64 }
65
66 /**
67 * @inheritDoc
68 */
69 @Override
70 protected void installListeners() {
71 super.installListeners();
72 optionPane.addPropertyChangeListener(this);
73 }
74
75 private void updateStyle(JComponent c) {
76 SynthContext context = getContext(c, ENABLED);
77 SynthStyle oldStyle = style;
78
79 style = SynthLookAndFeel.updateStyle(context, this);
80 if (style != oldStyle) {
81 minimumSize = (Dimension)style.get(context,
82 "OptionPane.minimumSize");
83 if (minimumSize == null) {
84 minimumSize = new Dimension(262, 90);
85 }
86 if (oldStyle != null) {
87 uninstallKeyboardActions();
88 installKeyboardActions();
89 }
90 }
91 context.dispose();
92 }
93
94 /**
95 * @inheritDoc
96 */
97 @Override
98 protected void uninstallDefaults() {
99 SynthContext context = getContext(optionPane, ENABLED);
100
101 style.uninstallDefaults(context);
102 context.dispose();
103 style = null;
104 }
105
106 /**
107 * @inheritDoc
108 */
109 @Override
110 protected void uninstallListeners() {
111 super.uninstallListeners();
112 optionPane.removePropertyChangeListener(this);
113 }
114
115 /**
116 * @inheritDoc
117 */
118 @Override
119 protected void installComponents() {
120 optionPane.add(createMessageArea());
121
122 Container separator = createSeparator();
123 if (separator != null) {
124 optionPane.add(separator);
125 SynthContext context = getContext(optionPane, ENABLED);
126 optionPane.add(Box.createVerticalStrut(context.getStyle().
127 getInt(context, "OptionPane.separatorPadding", 6)));
128 context.dispose();
129 }
130 optionPane.add(createButtonArea());
131 optionPane.applyComponentOrientation(optionPane.getComponentOrientation());
132 }
133
134 /**
135 * @inheritDoc
136 */
137 @Override
138 public SynthContext getContext(JComponent c) {
139 return getContext(c, getComponentState(c));
140 }
141
142 private SynthContext getContext(JComponent c, int state) {
143 return SynthContext.getContext(SynthContext.class, c,
144 SynthLookAndFeel.getRegion(c), style, state);
145 }
146
147 private int getComponentState(JComponent c) {
148 return SynthLookAndFeel.getComponentState(c);
149 }
150
151 /**
152 * Notifies this UI delegate to repaint the specified component.
153 * This method paints the component background, then calls
154 * the {@link #paint(SynthContext,Graphics)} method.
155 *
156 * <p>In general, this method does not need to be overridden by subclasses.
157 * All Look and Feel rendering code should reside in the {@code paint} method.
158 *
159 * @param g the {@code Graphics} object used for painting
160 * @param c the component being painted
161 * @see #paint(SynthContext,Graphics)
162 */
163 @Override
164 public void update(Graphics g, JComponent c) {
165 SynthContext context = getContext(c);
166
167 SynthLookAndFeel.update(context, g);
168 context.getPainter().paintOptionPaneBackground(context,
169 g, 0, 0, c.getWidth(), c.getHeight());
170 paint(context, g);
171 context.dispose();
172 }
173
174 /**
175 * Paints the specified component according to the Look and Feel.
176 * <p>This method is not used by Synth Look and Feel.
177 * Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
178 *
179 * @param g the {@code Graphics} object used for painting
180 * @param c the component being painted
181 * @see #paint(SynthContext,Graphics)
182 */
183 @Override
184 public void paint(Graphics g, JComponent c) {
185 SynthContext context = getContext(c);
186
187 paint(context, g);
188 context.dispose();
189 }
190
191 /**
192 * Paints the specified component. This implementation does nothing.
193 *
194 * @param context context for the component being painted
195 * @param g the {@code Graphics} object used for painting
196 * @see #update(Graphics,JComponent)
197 */
198 protected void paint(SynthContext context, Graphics g) {
199 }
200
201 /**
202 * @inheritDoc
203 */
204 @Override
205 public void paintBorder(SynthContext context, Graphics g, int x,
206 int y, int w, int h) {
207 context.getPainter().paintOptionPaneBorder(context, g, x, y, w, h);
208 }
209
210 /**
211 * @inheritDoc
212 */
213 @Override
214 public void propertyChange(PropertyChangeEvent e) {
215 if (SynthLookAndFeel.shouldUpdateStyle(e)) {
216 updateStyle((JOptionPane)e.getSource());
217 }
218 }
219
220 /**
221 * @inheritDoc
222 */
223 @Override
224 protected boolean getSizeButtonsToSameWidth() {
225 return DefaultLookup.getBoolean(optionPane, this,
226 "OptionPane.sameSizeButtons", true);
227 }
228
229 /**
230 * Called from {@link #installComponents} to create a {@code Container}
231 * containing the body of the message. The icon is the created by calling
232 * {@link #addIcon}.
233 */
234 @Override
235 protected Container createMessageArea() {
236 JPanel top = new JPanel();
237 top.setName("OptionPane.messageArea");
238 top.setLayout(new BorderLayout());
239
240 /* Fill the body. */
241 Container body = new JPanel(new GridBagLayout());
242 Container realBody = new JPanel(new BorderLayout());
243
244 body.setName("OptionPane.body");
245 realBody.setName("OptionPane.realBody");
246
247 if (getIcon() != null) {
248 JPanel sep = new JPanel();
249 sep.setName("OptionPane.separator");
250 sep.setPreferredSize(new Dimension(15, 1));
251 realBody.add(sep, BorderLayout.BEFORE_LINE_BEGINS);
252 }
253 realBody.add(body, BorderLayout.CENTER);
254
255 GridBagConstraints cons = new GridBagConstraints();
256 cons.gridx = cons.gridy = 0;
257 cons.gridwidth = GridBagConstraints.REMAINDER;
258 cons.gridheight = 1;
259
260 SynthContext context = getContext(optionPane, ENABLED);
261 cons.anchor = context.getStyle().getInt(context,
262 "OptionPane.messageAnchor", GridBagConstraints.CENTER);
263 context.dispose();
264
265 cons.insets = new Insets(0,0,3,0);
266
267 addMessageComponents(body, cons, getMessage(),
268 getMaxCharactersPerLineCount(), false);
269 top.add(realBody, BorderLayout.CENTER);
270
271 addIcon(top);
272 return top;
273 }
274
275 /**
276 * @inheritDoc
277 */
278 @Override
279 protected Container createSeparator() {
280 JSeparator separator = new JSeparator(SwingConstants.HORIZONTAL);
281
282 separator.setName("OptionPane.separator");
283 return separator;
284 }
285 }