1 /*
2 * Copyright (c) 2002, 2013, 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.awt.event.*;
30 import javax.swing.*;
31 import javax.swing.plaf.*;
32 import javax.swing.plaf.basic.BasicInternalFrameTitlePane;
33 import java.beans.PropertyChangeListener;
34 import java.beans.PropertyChangeEvent;
35 import java.beans.PropertyVetoException;
36 import sun.swing.SwingUtilities2;
37
38 /**
39 * The class that manages a synth title bar
40 *
41 * @author David Kloba
42 * @author Joshua Outwater
43 * @author Steve Wilson
44 */
45 class SynthInternalFrameTitlePane extends BasicInternalFrameTitlePane
46 implements SynthUI, PropertyChangeListener {
47
48 protected JPopupMenu systemPopupMenu;
49 protected JButton menuButton;
50
51 private SynthStyle style;
52 private int titleSpacing;
53 private int buttonSpacing;
54 // Alignment for the title, one of SwingConstants.(LEADING|TRAILING|CENTER)
55 private int titleAlignment;
56
57 public SynthInternalFrameTitlePane(JInternalFrame f) {
58 super(f);
59 }
60
61 public String getUIClassID() {
62 return "InternalFrameTitlePaneUI";
63 }
64
65 public SynthContext getContext(JComponent c) {
66 return getContext(c, getComponentState(c));
67 }
68
69 public SynthContext getContext(JComponent c, int state) {
70 return SynthContext.getContext(SynthContext.class, c,
71 SynthLookAndFeel.getRegion(c), style, state);
72 }
73
74 private Region getRegion(JComponent c) {
75 return SynthLookAndFeel.getRegion(c);
76 }
77
78 private int getComponentState(JComponent c) {
79 if (frame != null) {
80 if (frame.isSelected()) {
81 return SELECTED;
82 }
83 }
84 return SynthLookAndFeel.getComponentState(c);
85 }
86
87 protected void addSubComponents() {
88 menuButton.setName("InternalFrameTitlePane.menuButton");
89 iconButton.setName("InternalFrameTitlePane.iconifyButton");
90 maxButton.setName("InternalFrameTitlePane.maximizeButton");
91 closeButton.setName("InternalFrameTitlePane.closeButton");
92
93 add(menuButton);
94 add(iconButton);
95 add(maxButton);
96 add(closeButton);
97 }
98
99 protected void installListeners() {
100 super.installListeners();
101 frame.addPropertyChangeListener(this);
102 addPropertyChangeListener(this);
103 }
104
105 protected void uninstallListeners() {
106 frame.removePropertyChangeListener(this);
107 removePropertyChangeListener(this);
108 super.uninstallListeners();
109 }
110
111 private void updateStyle(JComponent c) {
112 SynthContext context = getContext(this, ENABLED);
113 SynthStyle oldStyle = style;
114 style = SynthLookAndFeel.updateStyle(context, this);
115 if (style != oldStyle) {
116 maxIcon =
117 style.getIcon(context,"InternalFrameTitlePane.maximizeIcon");
118 minIcon =
119 style.getIcon(context,"InternalFrameTitlePane.minimizeIcon");
120 iconIcon =
121 style.getIcon(context,"InternalFrameTitlePane.iconifyIcon");
122 closeIcon =
123 style.getIcon(context,"InternalFrameTitlePane.closeIcon");
124 titleSpacing = style.getInt(context,
125 "InternalFrameTitlePane.titleSpacing", 2);
126 buttonSpacing = style.getInt(context,
127 "InternalFrameTitlePane.buttonSpacing", 2);
128 String alignString = (String)style.get(context,
129 "InternalFrameTitlePane.titleAlignment");
130 titleAlignment = SwingConstants.LEADING;
131 if (alignString != null) {
132 alignString = alignString.toUpperCase();
133 if (alignString.equals("TRAILING")) {
134 titleAlignment = SwingConstants.TRAILING;
135 }
136 else if (alignString.equals("CENTER")) {
137 titleAlignment = SwingConstants.CENTER;
138 }
139 }
140 }
141 context.dispose();
142 }
143
144 protected void installDefaults() {
145 super.installDefaults();
146 updateStyle(this);
147 }
148
149 protected void uninstallDefaults() {
150 SynthContext context = getContext(this, ENABLED);
151 style.uninstallDefaults(context);
152 context.dispose();
153 style = null;
154 JInternalFrame.JDesktopIcon di = frame.getDesktopIcon();
155 if(di != null && di.getComponentPopupMenu() == systemPopupMenu) {
156 // Release link to systemMenu from the JInternalFrame
157 di.setComponentPopupMenu(null);
158 }
159 super.uninstallDefaults();
160 }
161
162 private static class JPopupMenuUIResource extends JPopupMenu implements
163 UIResource { }
164
165 protected void assembleSystemMenu() {
166 systemPopupMenu = new JPopupMenuUIResource();
167 addSystemMenuItems(systemPopupMenu);
168 enableActions();
169 menuButton = createNoFocusButton();
170 updateMenuIcon();
171 menuButton.addMouseListener(new MouseAdapter() {
172 public void mousePressed(MouseEvent e) {
173 try {
174 frame.setSelected(true);
175 } catch(PropertyVetoException pve) {
176 }
177 showSystemMenu();
178 }
179 });
180 JPopupMenu p = frame.getComponentPopupMenu();
181 if (p == null || p instanceof UIResource) {
182 frame.setComponentPopupMenu(systemPopupMenu);
183 }
184 if (frame.getDesktopIcon() != null) {
185 p = frame.getDesktopIcon().getComponentPopupMenu();
186 if (p == null || p instanceof UIResource) {
187 frame.getDesktopIcon().setComponentPopupMenu(systemPopupMenu);
188 }
189 }
190 setInheritsPopupMenu(true);
191 }
192
193 protected void addSystemMenuItems(JPopupMenu menu) {
194 JMenuItem mi = menu.add(restoreAction);
195 mi.setMnemonic(getButtonMnemonic("restore"));
196 mi = menu.add(moveAction);
197 mi.setMnemonic(getButtonMnemonic("move"));
198 mi = menu.add(sizeAction);
199 mi.setMnemonic(getButtonMnemonic("size"));
200 mi = menu.add(iconifyAction);
201 mi.setMnemonic(getButtonMnemonic("minimize"));
202 mi = menu.add(maximizeAction);
203 mi.setMnemonic(getButtonMnemonic("maximize"));
204 menu.add(new JSeparator());
205 mi = menu.add(closeAction);
206 mi.setMnemonic(getButtonMnemonic("close"));
207 }
208
209 private static int getButtonMnemonic(String button) {
210 try {
211 return Integer.parseInt(UIManager.getString(
212 "InternalFrameTitlePane." + button + "Button.mnemonic"));
213 } catch (NumberFormatException e) {
214 return -1;
215 }
216 }
217
218 protected void showSystemMenu() {
219 Insets insets = frame.getInsets();
220 if (!frame.isIcon()) {
221 systemPopupMenu.show(frame, menuButton.getX(), getY() + getHeight());
222 } else {
223 systemPopupMenu.show(menuButton,
224 getX() - insets.left - insets.right,
225 getY() - systemPopupMenu.getPreferredSize().height -
226 insets.bottom - insets.top);
227 }
228 }
229
230 // SynthInternalFrameTitlePane has no UI, we'll invoke paint on it.
231 public void paintComponent(Graphics g) {
232 SynthContext context = getContext(this);
233 SynthLookAndFeel.update(context, g);
234 context.getPainter().paintInternalFrameTitlePaneBackground(context,
235 g, 0, 0, getWidth(), getHeight());
236 paint(context, g);
237 context.dispose();
238 }
239
240 protected void paint(SynthContext context, Graphics g) {
241 String title = frame.getTitle();
242
243 if (title != null) {
244 SynthStyle style = context.getStyle();
245
246 g.setColor(style.getColor(context, ColorType.TEXT_FOREGROUND));
247 g.setFont(style.getFont(context));
248
249 // Center text vertically.
250 FontMetrics fm = SwingUtilities2.getFontMetrics(frame, g);
251 int baseline = (getHeight() + fm.getAscent() - fm.getLeading() -
252 fm.getDescent()) / 2;
253 JButton lastButton = null;
254 if (frame.isIconifiable()) {
255 lastButton = iconButton;
256 }
257 else if (frame.isMaximizable()) {
258 lastButton = maxButton;
259 }
260 else if (frame.isClosable()) {
261 lastButton = closeButton;
262 }
263 int maxX;
264 int minX;
265 boolean ltr = SynthLookAndFeel.isLeftToRight(frame);
266 int titleAlignment = this.titleAlignment;
267 if (ltr) {
268 if (lastButton != null) {
269 maxX = lastButton.getX() - titleSpacing;
270 }
271 else {
272 maxX = frame.getWidth() - frame.getInsets().right -
273 titleSpacing;
274 }
275 minX = menuButton.getX() + menuButton.getWidth() +
276 titleSpacing;
277 }
278 else {
279 if (lastButton != null) {
280 minX = lastButton.getX() + lastButton.getWidth() +
281 titleSpacing;
282 }
283 else {
284 minX = frame.getInsets().left + titleSpacing;
285 }
286 maxX = menuButton.getX() - titleSpacing;
287 if (titleAlignment == SwingConstants.LEADING) {
288 titleAlignment = SwingConstants.TRAILING;
289 }
290 else if (titleAlignment == SwingConstants.TRAILING) {
291 titleAlignment = SwingConstants.LEADING;
292 }
293 }
294 String clippedTitle = getTitle(title, fm, maxX - minX);
295 if (clippedTitle == title) {
296 // String fit, align as necessary.
297 if (titleAlignment == SwingConstants.TRAILING) {
298 minX = maxX - style.getGraphicsUtils(context).
299 computeStringWidth(context, g.getFont(), fm, title);
300 }
301 else if (titleAlignment == SwingConstants.CENTER) {
302 int width = style.getGraphicsUtils(context).
303 computeStringWidth(context, g.getFont(), fm, title);
304 minX = Math.max(minX, (getWidth() - width) / 2);
305 minX = Math.min(maxX - width, minX);
306 }
307 }
308 style.getGraphicsUtils(context).paintText(
309 context, g, clippedTitle, minX, baseline - fm.getAscent(), -1);
310 }
311 }
312
313 public void paintBorder(SynthContext context, Graphics g, int x,
314 int y, int w, int h) {
315 context.getPainter().paintInternalFrameTitlePaneBorder(context,
316 g, x, y, w, h);
317 }
318
319 protected LayoutManager createLayout() {
320 SynthContext context = getContext(this);
321 LayoutManager lm =
322 (LayoutManager)style.get(context, "InternalFrameTitlePane.titlePaneLayout");
323 context.dispose();
324 return (lm != null) ? lm : new SynthTitlePaneLayout();
325 }
326
327 public void propertyChange(PropertyChangeEvent evt) {
328 if (evt.getSource() == this) {
329 if (SynthLookAndFeel.shouldUpdateStyle(evt)) {
330 updateStyle(this);
331 }
332 }
333 else {
334 // Changes for the internal frame
335 if (evt.getPropertyName() == JInternalFrame.FRAME_ICON_PROPERTY) {
336 updateMenuIcon();
337 }
338 }
339 }
340
341 /**
342 * Resets the menuButton icon to match that of the frame.
343 */
344 private void updateMenuIcon() {
345 Icon frameIcon = frame.getFrameIcon();
346 SynthContext context = getContext(this);
347 if (frameIcon != null) {
348 Dimension maxSize = (Dimension)context.getStyle().get(context,
349 "InternalFrameTitlePane.maxFrameIconSize");
350 int maxWidth = 16;
351 int maxHeight = 16;
352 if (maxSize != null) {
353 maxWidth = maxSize.width;
354 maxHeight = maxSize.height;
355 }
356 if ((frameIcon.getIconWidth() > maxWidth ||
357 frameIcon.getIconHeight() > maxHeight) &&
358 (frameIcon instanceof ImageIcon)) {
359 frameIcon = new ImageIcon(((ImageIcon)frameIcon).
360 getImage().getScaledInstance(maxWidth, maxHeight,
361 Image.SCALE_SMOOTH));
362 }
363 }
364 context.dispose();
365 menuButton.setIcon(frameIcon);
366 }
367
368
369 class SynthTitlePaneLayout implements LayoutManager {
370 public void addLayoutComponent(String name, Component c) {}
371 public void removeLayoutComponent(Component c) {}
372 public Dimension preferredLayoutSize(Container c) {
373 return minimumLayoutSize(c);
374 }
375
376 public Dimension minimumLayoutSize(Container c) {
377 SynthContext context = getContext(
378 SynthInternalFrameTitlePane.this);
379 int width = 0;
380 int height = 0;
381
382 int buttonCount = 0;
383 Dimension pref;
384
385 if (frame.isClosable()) {
386 pref = closeButton.getPreferredSize();
387 width += pref.width;
388 height = Math.max(pref.height, height);
389 buttonCount++;
390 }
391 if (frame.isMaximizable()) {
392 pref = maxButton.getPreferredSize();
393 width += pref.width;
394 height = Math.max(pref.height, height);
395 buttonCount++;
396 }
397 if (frame.isIconifiable()) {
398 pref = iconButton.getPreferredSize();
399 width += pref.width;
400 height = Math.max(pref.height, height);
401 buttonCount++;
402 }
403 pref = menuButton.getPreferredSize();
404 width += pref.width;
405 height = Math.max(pref.height, height);
406
407 width += Math.max(0, (buttonCount - 1) * buttonSpacing);
408
409 FontMetrics fm = SynthInternalFrameTitlePane.this.getFontMetrics(
410 getFont());
411 SynthGraphicsUtils graphicsUtils = context.getStyle().
412 getGraphicsUtils(context);
413 String frameTitle = frame.getTitle();
414 int title_w = frameTitle != null ? graphicsUtils.
415 computeStringWidth(context, fm.getFont(),
416 fm, frameTitle) : 0;
417 int title_length = frameTitle != null ? frameTitle.length() : 0;
418
419 // Leave room for three characters in the title.
420 if (title_length > 3) {
421 int subtitle_w = graphicsUtils.computeStringWidth(context,
422 fm.getFont(), fm, frameTitle.substring(0, 3) + "...");
423 width += (title_w < subtitle_w) ? title_w : subtitle_w;
424 } else {
425 width += title_w;
426 }
427
428 height = Math.max(fm.getHeight() + 2, height);
429
430 width += titleSpacing + titleSpacing;
431
432 Insets insets = getInsets();
433 height += insets.top + insets.bottom;
434 width += insets.left + insets.right;
435 context.dispose();
436 return new Dimension(width, height);
437 }
438
439 private int center(Component c, Insets insets, int x,
440 boolean trailing) {
441 Dimension pref = c.getPreferredSize();
442 if (trailing) {
443 x -= pref.width;
444 }
445 c.setBounds(x, insets.top +
446 (getHeight() - insets.top - insets.bottom -
447 pref.height) / 2, pref.width, pref.height);
448 if (pref.width > 0) {
449 if (trailing) {
450 return x - buttonSpacing;
451 }
452 return x + pref.width + buttonSpacing;
453 }
454 return x;
455 }
456
457 public void layoutContainer(Container c) {
458 Insets insets = c.getInsets();
459 Dimension pref;
460
461 if (SynthLookAndFeel.isLeftToRight(frame)) {
462 center(menuButton, insets, insets.left, false);
463 int x = getWidth() - insets.right;
464 if (frame.isClosable()) {
465 x = center(closeButton, insets, x, true);
466 }
467 if (frame.isMaximizable()) {
468 x = center(maxButton, insets, x, true);
469 }
470 if (frame.isIconifiable()) {
471 x = center(iconButton, insets, x, true);
472 }
473 }
474 else {
475 center(menuButton, insets, getWidth() - insets.right,
476 true);
477 int x = insets.left;
478 if (frame.isClosable()) {
479 x = center(closeButton, insets, x, false);
480 }
481 if (frame.isMaximizable()) {
482 x = center(maxButton, insets, x, false);
483 }
484 if (frame.isIconifiable()) {
485 x = center(iconButton, insets, x, false);
486 }
487 }
488 }
489 }
490
491 private JButton createNoFocusButton() {
492 JButton button = new JButton();
493 button.setFocusable(false);
494 button.setMargin(new Insets(0,0,0,0));
495 return button;
496 }
497 }