1 /*
2 * Copyright (c) 2002, 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.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 @SuppressWarnings("serial") // Superclass is not serializable across versions
46 class SynthInternalFrameTitlePane extends BasicInternalFrameTitlePane
47 implements SynthUI, PropertyChangeListener {
48
49 protected JPopupMenu systemPopupMenu;
50 protected JButton menuButton;
51
52 private SynthStyle style;
53 private int titleSpacing;
54 private int buttonSpacing;
55 // Alignment for the title, one of SwingConstants.(LEADING|TRAILING|CENTER)
56 private int titleAlignment;
57
58 public SynthInternalFrameTitlePane(JInternalFrame f) {
59 super(f);
60 }
61
62 public String getUIClassID() {
63 return "InternalFrameTitlePaneUI";
64 }
65
66 public SynthContext getContext(JComponent c) {
67 return getContext(c, getComponentState(c));
68 }
69
70 public SynthContext getContext(JComponent c, int state) {
71 return SynthContext.getContext(SynthContext.class, c,
72 SynthLookAndFeel.getRegion(c), style, state);
73 }
74
75 private Region getRegion(JComponent c) {
76 return SynthLookAndFeel.getRegion(c);
77 }
78
79 private int getComponentState(JComponent c) {
80 if (frame != null) {
81 if (frame.isSelected()) {
82 return SELECTED;
83 }
84 }
85 return SynthLookAndFeel.getComponentState(c);
86 }
87
88 protected void addSubComponents() {
89 menuButton.setName("InternalFrameTitlePane.menuButton");
90 iconButton.setName("InternalFrameTitlePane.iconifyButton");
91 maxButton.setName("InternalFrameTitlePane.maximizeButton");
92 closeButton.setName("InternalFrameTitlePane.closeButton");
93
94 add(menuButton);
95 add(iconButton);
96 add(maxButton);
97 add(closeButton);
98 }
99
100 protected void installListeners() {
101 super.installListeners();
102 frame.addPropertyChangeListener(this);
103 addPropertyChangeListener(this);
104 }
105
106 protected void uninstallListeners() {
107 frame.removePropertyChangeListener(this);
108 removePropertyChangeListener(this);
109 super.uninstallListeners();
110 }
111
112 private void updateStyle(JComponent c) {
113 SynthContext context = getContext(this, ENABLED);
114 SynthStyle oldStyle = style;
115 style = SynthLookAndFeel.updateStyle(context, this);
116 if (style != oldStyle) {
117 maxIcon =
118 style.getIcon(context,"InternalFrameTitlePane.maximizeIcon");
119 minIcon =
120 style.getIcon(context,"InternalFrameTitlePane.minimizeIcon");
121 iconIcon =
122 style.getIcon(context,"InternalFrameTitlePane.iconifyIcon");
123 closeIcon =
124 style.getIcon(context,"InternalFrameTitlePane.closeIcon");
125 titleSpacing = style.getInt(context,
126 "InternalFrameTitlePane.titleSpacing", 2);
127 buttonSpacing = style.getInt(context,
128 "InternalFrameTitlePane.buttonSpacing", 2);
129 String alignString = (String)style.get(context,
130 "InternalFrameTitlePane.titleAlignment");
131 titleAlignment = SwingConstants.LEADING;
132 if (alignString != null) {
133 alignString = alignString.toUpperCase();
134 if (alignString.equals("TRAILING")) {
135 titleAlignment = SwingConstants.TRAILING;
136 }
137 else if (alignString.equals("CENTER")) {
138 titleAlignment = SwingConstants.CENTER;
139 }
140 }
141 }
142 context.dispose();
143 }
144
145 protected void installDefaults() {
146 super.installDefaults();
147 updateStyle(this);
148 }
149
150 protected void uninstallDefaults() {
151 SynthContext context = getContext(this, ENABLED);
152 style.uninstallDefaults(context);
153 context.dispose();
154 style = null;
155 JInternalFrame.JDesktopIcon di = frame.getDesktopIcon();
156 if(di != null && di.getComponentPopupMenu() == systemPopupMenu) {
157 // Release link to systemMenu from the JInternalFrame
158 di.setComponentPopupMenu(null);
159 }
160 super.uninstallDefaults();
161 }
162
163 @SuppressWarnings("serial") // Superclass is not serializable across versions
164 private static class JPopupMenuUIResource extends JPopupMenu implements
165 UIResource { }
166
167 protected void assembleSystemMenu() {
168 systemPopupMenu = new JPopupMenuUIResource();
169 addSystemMenuItems(systemPopupMenu);
170 enableActions();
171 menuButton = createNoFocusButton();
172 updateMenuIcon();
173 menuButton.addMouseListener(new MouseAdapter() {
174 public void mousePressed(MouseEvent e) {
175 try {
176 frame.setSelected(true);
177 } catch(PropertyVetoException pve) {
178 }
179 showSystemMenu();
180 }
181 });
182 JPopupMenu p = frame.getComponentPopupMenu();
183 if (p == null || p instanceof UIResource) {
184 frame.setComponentPopupMenu(systemPopupMenu);
185 }
186 if (frame.getDesktopIcon() != null) {
187 p = frame.getDesktopIcon().getComponentPopupMenu();
188 if (p == null || p instanceof UIResource) {
189 frame.getDesktopIcon().setComponentPopupMenu(systemPopupMenu);
190 }
191 }
192 setInheritsPopupMenu(true);
193 }
194
195 protected void addSystemMenuItems(JPopupMenu menu) {
196 JMenuItem mi = menu.add(restoreAction);
197 mi.setMnemonic(getButtonMnemonic("restore"));
198 mi = menu.add(moveAction);
199 mi.setMnemonic(getButtonMnemonic("move"));
200 mi = menu.add(sizeAction);
201 mi.setMnemonic(getButtonMnemonic("size"));
202 mi = menu.add(iconifyAction);
203 mi.setMnemonic(getButtonMnemonic("minimize"));
204 mi = menu.add(maximizeAction);
205 mi.setMnemonic(getButtonMnemonic("maximize"));
206 menu.add(new JSeparator());
207 mi = menu.add(closeAction);
208 mi.setMnemonic(getButtonMnemonic("close"));
209 }
210
211 private static int getButtonMnemonic(String button) {
212 try {
213 return Integer.parseInt(UIManager.getString(
214 "InternalFrameTitlePane." + button + "Button.mnemonic"));
215 } catch (NumberFormatException e) {
216 return -1;
217 }
218 }
219
220 protected void showSystemMenu() {
221 Insets insets = frame.getInsets();
222 if (!frame.isIcon()) {
223 systemPopupMenu.show(frame, menuButton.getX(), getY() + getHeight());
224 } else {
225 systemPopupMenu.show(menuButton,
226 getX() - insets.left - insets.right,
227 getY() - systemPopupMenu.getPreferredSize().height -
228 insets.bottom - insets.top);
229 }
230 }
231
232 // SynthInternalFrameTitlePane has no UI, we'll invoke paint on it.
233 public void paintComponent(Graphics g) {
234 SynthContext context = getContext(this);
235 SynthLookAndFeel.update(context, g);
236 context.getPainter().paintInternalFrameTitlePaneBackground(context,
237 g, 0, 0, getWidth(), getHeight());
238 paint(context, g);
239 context.dispose();
240 }
241
242 protected void paint(SynthContext context, Graphics g) {
243 String title = frame.getTitle();
244
245 if (title != null) {
246 SynthStyle style = context.getStyle();
247
248 g.setColor(style.getColor(context, ColorType.TEXT_FOREGROUND));
249 g.setFont(style.getFont(context));
250
251 // Center text vertically.
252 FontMetrics fm = SwingUtilities2.getFontMetrics(frame, g);
253 int baseline = (getHeight() + fm.getAscent() - fm.getLeading() -
254 fm.getDescent()) / 2;
255 JButton lastButton = null;
256 if (frame.isIconifiable()) {
257 lastButton = iconButton;
258 }
259 else if (frame.isMaximizable()) {
260 lastButton = maxButton;
261 }
262 else if (frame.isClosable()) {
263 lastButton = closeButton;
264 }
265 int maxX;
266 int minX;
267 boolean ltr = SynthLookAndFeel.isLeftToRight(frame);
268 int titleAlignment = this.titleAlignment;
269 if (ltr) {
270 if (lastButton != null) {
271 maxX = lastButton.getX() - titleSpacing;
272 }
273 else {
274 maxX = frame.getWidth() - frame.getInsets().right -
275 titleSpacing;
276 }
277 minX = menuButton.getX() + menuButton.getWidth() +
278 titleSpacing;
279 }
280 else {
281 if (lastButton != null) {
282 minX = lastButton.getX() + lastButton.getWidth() +
283 titleSpacing;
284 }
285 else {
286 minX = frame.getInsets().left + titleSpacing;
287 }
288 maxX = menuButton.getX() - titleSpacing;
289 if (titleAlignment == SwingConstants.LEADING) {
290 titleAlignment = SwingConstants.TRAILING;
291 }
292 else if (titleAlignment == SwingConstants.TRAILING) {
293 titleAlignment = SwingConstants.LEADING;
294 }
295 }
296 String clippedTitle = getTitle(title, fm, maxX - minX);
297 if (clippedTitle == title) {
298 // String fit, align as necessary.
299 if (titleAlignment == SwingConstants.TRAILING) {
300 minX = maxX - style.getGraphicsUtils(context).
301 computeStringWidth(context, g.getFont(), fm, title);
302 }
303 else if (titleAlignment == SwingConstants.CENTER) {
304 int width = style.getGraphicsUtils(context).
305 computeStringWidth(context, g.getFont(), fm, title);
306 minX = Math.max(minX, (getWidth() - width) / 2);
307 minX = Math.min(maxX - width, minX);
308 }
309 }
310 style.getGraphicsUtils(context).paintText(
311 context, g, clippedTitle, minX, baseline - fm.getAscent(), -1);
312 }
313 }
314
315 public void paintBorder(SynthContext context, Graphics g, int x,
316 int y, int w, int h) {
317 context.getPainter().paintInternalFrameTitlePaneBorder(context,
318 g, x, y, w, h);
319 }
320
321 protected LayoutManager createLayout() {
322 SynthContext context = getContext(this);
323 LayoutManager lm =
324 (LayoutManager)style.get(context, "InternalFrameTitlePane.titlePaneLayout");
325 context.dispose();
326 return (lm != null) ? lm : new SynthTitlePaneLayout();
327 }
328
329 public void propertyChange(PropertyChangeEvent evt) {
330 if (evt.getSource() == this) {
331 if (SynthLookAndFeel.shouldUpdateStyle(evt)) {
332 updateStyle(this);
333 }
334 }
335 else {
336 // Changes for the internal frame
337 if (evt.getPropertyName() == JInternalFrame.FRAME_ICON_PROPERTY) {
338 updateMenuIcon();
339 }
340 }
341 }
342
343 /**
344 * Resets the menuButton icon to match that of the frame.
345 */
346 private void updateMenuIcon() {
347 Icon frameIcon = frame.getFrameIcon();
348 SynthContext context = getContext(this);
349 if (frameIcon != null) {
350 Dimension maxSize = (Dimension)context.getStyle().get(context,
351 "InternalFrameTitlePane.maxFrameIconSize");
352 int maxWidth = 16;
353 int maxHeight = 16;
354 if (maxSize != null) {
355 maxWidth = maxSize.width;
356 maxHeight = maxSize.height;
357 }
358 if ((frameIcon.getIconWidth() > maxWidth ||
359 frameIcon.getIconHeight() > maxHeight) &&
360 (frameIcon instanceof ImageIcon)) {
361 frameIcon = new ImageIcon(((ImageIcon)frameIcon).
362 getImage().getScaledInstance(maxWidth, maxHeight,
363 Image.SCALE_SMOOTH));
364 }
365 }
366 context.dispose();
367 menuButton.setIcon(frameIcon);
368 }
369
370
371 class SynthTitlePaneLayout implements LayoutManager {
372 public void addLayoutComponent(String name, Component c) {}
373 public void removeLayoutComponent(Component c) {}
374 public Dimension preferredLayoutSize(Container c) {
375 return minimumLayoutSize(c);
376 }
377
378 public Dimension minimumLayoutSize(Container c) {
379 SynthContext context = getContext(
380 SynthInternalFrameTitlePane.this);
381 int width = 0;
382 int height = 0;
383
384 int buttonCount = 0;
385 Dimension pref;
386
387 if (frame.isClosable()) {
388 pref = closeButton.getPreferredSize();
389 width += pref.width;
390 height = Math.max(pref.height, height);
391 buttonCount++;
392 }
393 if (frame.isMaximizable()) {
394 pref = maxButton.getPreferredSize();
395 width += pref.width;
396 height = Math.max(pref.height, height);
397 buttonCount++;
398 }
399 if (frame.isIconifiable()) {
400 pref = iconButton.getPreferredSize();
401 width += pref.width;
402 height = Math.max(pref.height, height);
403 buttonCount++;
404 }
405 pref = menuButton.getPreferredSize();
406 width += pref.width;
407 height = Math.max(pref.height, height);
408
409 width += Math.max(0, (buttonCount - 1) * buttonSpacing);
410
411 FontMetrics fm = SynthInternalFrameTitlePane.this.getFontMetrics(
412 getFont());
413 SynthGraphicsUtils graphicsUtils = context.getStyle().
414 getGraphicsUtils(context);
415 String frameTitle = frame.getTitle();
416 int title_w = frameTitle != null ? graphicsUtils.
417 computeStringWidth(context, fm.getFont(),
418 fm, frameTitle) : 0;
419 int title_length = frameTitle != null ? frameTitle.length() : 0;
420
421 // Leave room for three characters in the title.
422 if (title_length > 3) {
423 int subtitle_w = graphicsUtils.computeStringWidth(context,
424 fm.getFont(), fm, frameTitle.substring(0, 3) + "...");
425 width += (title_w < subtitle_w) ? title_w : subtitle_w;
426 } else {
427 width += title_w;
428 }
429
430 height = Math.max(fm.getHeight() + 2, height);
431
432 width += titleSpacing + titleSpacing;
433
434 Insets insets = getInsets();
435 height += insets.top + insets.bottom;
436 width += insets.left + insets.right;
437 context.dispose();
438 return new Dimension(width, height);
439 }
440
441 private int center(Component c, Insets insets, int x,
442 boolean trailing) {
443 Dimension pref = c.getPreferredSize();
444 if (trailing) {
445 x -= pref.width;
446 }
447 c.setBounds(x, insets.top +
448 (getHeight() - insets.top - insets.bottom -
449 pref.height) / 2, pref.width, pref.height);
450 if (pref.width > 0) {
451 if (trailing) {
452 return x - buttonSpacing;
453 }
454 return x + pref.width + buttonSpacing;
455 }
456 return x;
457 }
458
459 public void layoutContainer(Container c) {
460 Insets insets = c.getInsets();
461 Dimension pref;
462
463 if (SynthLookAndFeel.isLeftToRight(frame)) {
464 center(menuButton, insets, insets.left, false);
465 int x = getWidth() - insets.right;
466 if (frame.isClosable()) {
467 x = center(closeButton, insets, x, true);
468 }
469 if (frame.isMaximizable()) {
470 x = center(maxButton, insets, x, true);
471 }
472 if (frame.isIconifiable()) {
473 x = center(iconButton, insets, x, true);
474 }
475 }
476 else {
477 center(menuButton, insets, getWidth() - insets.right,
478 true);
479 int x = insets.left;
480 if (frame.isClosable()) {
481 x = center(closeButton, insets, x, false);
482 }
483 if (frame.isMaximizable()) {
484 x = center(maxButton, insets, x, false);
485 }
486 if (frame.isIconifiable()) {
487 x = center(iconButton, insets, x, false);
488 }
489 }
490 }
491 }
492
493 private JButton createNoFocusButton() {
494 JButton button = new JButton();
495 button.setFocusable(false);
496 button.setMargin(new Insets(0,0,0,0));
497 return button;
498 }
499 }