author | weijun |
Thu, 11 Dec 2014 15:19:12 +0800 | |
changeset 28228 | be83f404724d |
parent 26037 | 508779ce6619 |
child 30461 | 57e36ed1a9ab |
permissions | -rw-r--r-- |
2 | 1 |
/* |
24163
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
2 |
* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
2 | 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 |
|
5506 | 7 |
* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 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 |
* |
|
5506 | 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. |
|
2 | 24 |
*/ |
25 |
package javax.swing.plaf.basic; |
|
26 |
||
27 |
||
28 |
import sun.swing.DefaultLookup; |
|
29 |
import sun.swing.UIAction; |
|
30 |
||
31 |
import java.awt.*; |
|
32 |
import java.awt.event.*; |
|
33 |
||
34 |
import java.beans.*; |
|
35 |
||
36 |
import javax.swing.*; |
|
37 |
import javax.swing.event.*; |
|
38 |
import javax.swing.plaf.*; |
|
39 |
||
24163
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
40 |
import static sun.swing.SwingUtilities2.drawHLine; |
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
41 |
import static sun.swing.SwingUtilities2.drawRect; |
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
42 |
import static sun.swing.SwingUtilities2.drawVLine; |
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
43 |
|
2 | 44 |
|
45 |
/** |
|
46 |
* Implementation of ScrollBarUI for the Basic Look and Feel |
|
47 |
* |
|
48 |
* @author Rich Schiavi |
|
49 |
* @author David Kloba |
|
50 |
* @author Hans Muller |
|
51 |
*/ |
|
52 |
public class BasicScrollBarUI |
|
53 |
extends ScrollBarUI implements LayoutManager, SwingConstants |
|
54 |
{ |
|
55 |
private static final int POSITIVE_SCROLL = 1; |
|
56 |
private static final int NEGATIVE_SCROLL = -1; |
|
57 |
||
58 |
private static final int MIN_SCROLL = 2; |
|
59 |
private static final int MAX_SCROLL = 3; |
|
60 |
||
61 |
// NOTE: DO NOT use this field directly, SynthScrollBarUI assumes you'll |
|
62 |
// call getMinimumThumbSize to access it. |
|
63 |
protected Dimension minimumThumbSize; |
|
64 |
protected Dimension maximumThumbSize; |
|
65 |
||
66 |
protected Color thumbHighlightColor; |
|
67 |
protected Color thumbLightShadowColor; |
|
68 |
protected Color thumbDarkShadowColor; |
|
69 |
protected Color thumbColor; |
|
70 |
protected Color trackColor; |
|
71 |
protected Color trackHighlightColor; |
|
72 |
||
73 |
protected JScrollBar scrollbar; |
|
74 |
protected JButton incrButton; |
|
75 |
protected JButton decrButton; |
|
76 |
protected boolean isDragging; |
|
77 |
protected TrackListener trackListener; |
|
78 |
protected ArrowButtonListener buttonListener; |
|
79 |
protected ModelListener modelListener; |
|
80 |
||
81 |
protected Rectangle thumbRect; |
|
82 |
protected Rectangle trackRect; |
|
83 |
||
84 |
protected int trackHighlight; |
|
85 |
||
86 |
protected static final int NO_HIGHLIGHT = 0; |
|
87 |
protected static final int DECREASE_HIGHLIGHT = 1; |
|
88 |
protected static final int INCREASE_HIGHLIGHT = 2; |
|
89 |
||
90 |
protected ScrollListener scrollListener; |
|
91 |
protected PropertyChangeListener propertyChangeListener; |
|
92 |
protected Timer scrollTimer; |
|
93 |
||
94 |
private final static int scrollSpeedThrottle = 60; // delay in milli seconds |
|
95 |
||
26012
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
96 |
/** |
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
97 |
* True indicates a middle click will absolutely position the |
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
98 |
* scrollbar. |
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
99 |
*/ |
2 | 100 |
private boolean supportsAbsolutePositioning; |
101 |
||
4394 | 102 |
/** |
103 |
* Hint as to what width (when vertical) or height (when horizontal) |
|
2 | 104 |
* should be. |
4394 | 105 |
* |
106 |
* @since 1.7 |
|
2 | 107 |
*/ |
4394 | 108 |
protected int scrollBarWidth; |
2 | 109 |
|
110 |
private Handler handler; |
|
111 |
||
112 |
private boolean thumbActive; |
|
113 |
||
114 |
/** |
|
115 |
* Determine whether scrollbar layout should use cached value or adjusted |
|
116 |
* value returned by scrollbar's <code>getValue</code>. |
|
117 |
*/ |
|
118 |
private boolean useCachedValue = false; |
|
119 |
/** |
|
120 |
* The scrollbar value is cached to save real value if the view is adjusted. |
|
121 |
*/ |
|
122 |
private int scrollBarValue; |
|
123 |
||
2658 | 124 |
/** |
125 |
* Distance between the increment button and the track. This may be a negative |
|
126 |
* number. If negative, then an overlap between the button and track will occur, |
|
127 |
* which is useful for shaped buttons. |
|
128 |
* |
|
4394 | 129 |
* @since 1.7 |
2658 | 130 |
*/ |
4394 | 131 |
protected int incrGap; |
2658 | 132 |
|
133 |
/** |
|
134 |
* Distance between the decrement button and the track. This may be a negative |
|
135 |
* number. If negative, then an overlap between the button and track will occur, |
|
136 |
* which is useful for shaped buttons. |
|
137 |
* |
|
4394 | 138 |
* @since 1.7 |
2658 | 139 |
*/ |
4394 | 140 |
protected int decrGap; |
2658 | 141 |
|
2 | 142 |
static void loadActionMap(LazyActionMap map) { |
143 |
map.put(new Actions(Actions.POSITIVE_UNIT_INCREMENT)); |
|
144 |
map.put(new Actions(Actions.POSITIVE_BLOCK_INCREMENT)); |
|
145 |
map.put(new Actions(Actions.NEGATIVE_UNIT_INCREMENT)); |
|
146 |
map.put(new Actions(Actions.NEGATIVE_BLOCK_INCREMENT)); |
|
147 |
map.put(new Actions(Actions.MIN_SCROLL)); |
|
148 |
map.put(new Actions(Actions.MAX_SCROLL)); |
|
149 |
} |
|
150 |
||
151 |
||
152 |
public static ComponentUI createUI(JComponent c) { |
|
153 |
return new BasicScrollBarUI(); |
|
154 |
} |
|
155 |
||
156 |
||
157 |
protected void configureScrollBarColors() |
|
158 |
{ |
|
159 |
LookAndFeel.installColors(scrollbar, "ScrollBar.background", |
|
160 |
"ScrollBar.foreground"); |
|
161 |
thumbHighlightColor = UIManager.getColor("ScrollBar.thumbHighlight"); |
|
162 |
thumbLightShadowColor = UIManager.getColor("ScrollBar.thumbShadow"); |
|
163 |
thumbDarkShadowColor = UIManager.getColor("ScrollBar.thumbDarkShadow"); |
|
164 |
thumbColor = UIManager.getColor("ScrollBar.thumb"); |
|
165 |
trackColor = UIManager.getColor("ScrollBar.track"); |
|
166 |
trackHighlightColor = UIManager.getColor("ScrollBar.trackHighlight"); |
|
167 |
} |
|
168 |
||
169 |
||
170 |
public void installUI(JComponent c) { |
|
171 |
scrollbar = (JScrollBar)c; |
|
172 |
thumbRect = new Rectangle(0, 0, 0, 0); |
|
173 |
trackRect = new Rectangle(0, 0, 0, 0); |
|
174 |
installDefaults(); |
|
175 |
installComponents(); |
|
176 |
installListeners(); |
|
177 |
installKeyboardActions(); |
|
178 |
} |
|
179 |
||
180 |
public void uninstallUI(JComponent c) { |
|
181 |
scrollbar = (JScrollBar)c; |
|
182 |
uninstallListeners(); |
|
183 |
uninstallDefaults(); |
|
184 |
uninstallComponents(); |
|
185 |
uninstallKeyboardActions(); |
|
186 |
thumbRect = null; |
|
187 |
scrollbar = null; |
|
188 |
incrButton = null; |
|
189 |
decrButton = null; |
|
190 |
} |
|
191 |
||
192 |
||
193 |
protected void installDefaults() |
|
194 |
{ |
|
195 |
scrollBarWidth = UIManager.getInt("ScrollBar.width"); |
|
196 |
if (scrollBarWidth <= 0) { |
|
197 |
scrollBarWidth = 16; |
|
198 |
} |
|
199 |
minimumThumbSize = (Dimension)UIManager.get("ScrollBar.minimumThumbSize"); |
|
200 |
maximumThumbSize = (Dimension)UIManager.get("ScrollBar.maximumThumbSize"); |
|
201 |
||
202 |
Boolean absB = (Boolean)UIManager.get("ScrollBar.allowsAbsolutePositioning"); |
|
203 |
supportsAbsolutePositioning = (absB != null) ? absB.booleanValue() : |
|
204 |
false; |
|
205 |
||
206 |
trackHighlight = NO_HIGHLIGHT; |
|
207 |
if (scrollbar.getLayout() == null || |
|
208 |
(scrollbar.getLayout() instanceof UIResource)) { |
|
209 |
scrollbar.setLayout(this); |
|
210 |
} |
|
211 |
configureScrollBarColors(); |
|
212 |
LookAndFeel.installBorder(scrollbar, "ScrollBar.border"); |
|
213 |
LookAndFeel.installProperty(scrollbar, "opaque", Boolean.TRUE); |
|
214 |
||
215 |
scrollBarValue = scrollbar.getValue(); |
|
2658 | 216 |
|
217 |
incrGap = UIManager.getInt("ScrollBar.incrementButtonGap"); |
|
218 |
decrGap = UIManager.getInt("ScrollBar.decrementButtonGap"); |
|
219 |
||
220 |
// TODO this can be removed when incrGap/decrGap become protected |
|
221 |
// handle scaling for sizeVarients for special case components. The |
|
222 |
// key "JComponent.sizeVariant" scales for large/small/mini |
|
223 |
// components are based on Apples LAF |
|
224 |
String scaleKey = (String)scrollbar.getClientProperty( |
|
225 |
"JComponent.sizeVariant"); |
|
226 |
if (scaleKey != null){ |
|
227 |
if ("large".equals(scaleKey)){ |
|
228 |
scrollBarWidth *= 1.15; |
|
229 |
incrGap *= 1.15; |
|
230 |
decrGap *= 1.15; |
|
231 |
} else if ("small".equals(scaleKey)){ |
|
232 |
scrollBarWidth *= 0.857; |
|
233 |
incrGap *= 0.857; |
|
234 |
decrGap *= 0.714; |
|
235 |
} else if ("mini".equals(scaleKey)){ |
|
236 |
scrollBarWidth *= 0.714; |
|
237 |
incrGap *= 0.714; |
|
238 |
decrGap *= 0.714; |
|
239 |
} |
|
240 |
} |
|
2 | 241 |
} |
242 |
||
243 |
||
244 |
protected void installComponents(){ |
|
245 |
switch (scrollbar.getOrientation()) { |
|
246 |
case JScrollBar.VERTICAL: |
|
247 |
incrButton = createIncreaseButton(SOUTH); |
|
248 |
decrButton = createDecreaseButton(NORTH); |
|
249 |
break; |
|
250 |
||
251 |
case JScrollBar.HORIZONTAL: |
|
252 |
if (scrollbar.getComponentOrientation().isLeftToRight()) { |
|
253 |
incrButton = createIncreaseButton(EAST); |
|
254 |
decrButton = createDecreaseButton(WEST); |
|
255 |
} else { |
|
256 |
incrButton = createIncreaseButton(WEST); |
|
257 |
decrButton = createDecreaseButton(EAST); |
|
258 |
} |
|
259 |
break; |
|
260 |
} |
|
261 |
scrollbar.add(incrButton); |
|
262 |
scrollbar.add(decrButton); |
|
263 |
// Force the children's enabled state to be updated. |
|
264 |
scrollbar.setEnabled(scrollbar.isEnabled()); |
|
265 |
} |
|
266 |
||
267 |
protected void uninstallComponents(){ |
|
268 |
scrollbar.remove(incrButton); |
|
269 |
scrollbar.remove(decrButton); |
|
270 |
} |
|
271 |
||
272 |
||
273 |
protected void installListeners(){ |
|
274 |
trackListener = createTrackListener(); |
|
275 |
buttonListener = createArrowButtonListener(); |
|
276 |
modelListener = createModelListener(); |
|
277 |
propertyChangeListener = createPropertyChangeListener(); |
|
278 |
||
279 |
scrollbar.addMouseListener(trackListener); |
|
280 |
scrollbar.addMouseMotionListener(trackListener); |
|
281 |
scrollbar.getModel().addChangeListener(modelListener); |
|
282 |
scrollbar.addPropertyChangeListener(propertyChangeListener); |
|
283 |
scrollbar.addFocusListener(getHandler()); |
|
284 |
||
285 |
if (incrButton != null) { |
|
286 |
incrButton.addMouseListener(buttonListener); |
|
287 |
} |
|
288 |
if (decrButton != null) { |
|
289 |
decrButton.addMouseListener(buttonListener); |
|
290 |
} |
|
291 |
||
292 |
scrollListener = createScrollListener(); |
|
293 |
scrollTimer = new Timer(scrollSpeedThrottle, scrollListener); |
|
294 |
scrollTimer.setInitialDelay(300); // default InitialDelay? |
|
295 |
} |
|
296 |
||
297 |
||
298 |
protected void installKeyboardActions(){ |
|
299 |
LazyActionMap.installLazyActionMap(scrollbar, BasicScrollBarUI.class, |
|
300 |
"ScrollBar.actionMap"); |
|
301 |
||
302 |
InputMap inputMap = getInputMap(JComponent.WHEN_FOCUSED); |
|
303 |
SwingUtilities.replaceUIInputMap(scrollbar, JComponent.WHEN_FOCUSED, |
|
304 |
inputMap); |
|
305 |
inputMap = getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT); |
|
306 |
SwingUtilities.replaceUIInputMap(scrollbar, |
|
307 |
JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, inputMap); |
|
308 |
} |
|
309 |
||
310 |
protected void uninstallKeyboardActions(){ |
|
311 |
SwingUtilities.replaceUIInputMap(scrollbar, JComponent.WHEN_FOCUSED, |
|
312 |
null); |
|
313 |
SwingUtilities.replaceUIActionMap(scrollbar, null); |
|
314 |
} |
|
315 |
||
316 |
private InputMap getInputMap(int condition) { |
|
317 |
if (condition == JComponent.WHEN_FOCUSED) { |
|
318 |
InputMap keyMap = (InputMap)DefaultLookup.get( |
|
319 |
scrollbar, this, "ScrollBar.focusInputMap"); |
|
320 |
InputMap rtlKeyMap; |
|
321 |
||
322 |
if (scrollbar.getComponentOrientation().isLeftToRight() || |
|
323 |
((rtlKeyMap = (InputMap)DefaultLookup.get(scrollbar, this, "ScrollBar.focusInputMap.RightToLeft")) == null)) { |
|
324 |
return keyMap; |
|
325 |
} else { |
|
326 |
rtlKeyMap.setParent(keyMap); |
|
327 |
return rtlKeyMap; |
|
328 |
} |
|
329 |
} |
|
330 |
else if (condition == JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT) { |
|
331 |
InputMap keyMap = (InputMap)DefaultLookup.get( |
|
332 |
scrollbar, this, "ScrollBar.ancestorInputMap"); |
|
333 |
InputMap rtlKeyMap; |
|
334 |
||
335 |
if (scrollbar.getComponentOrientation().isLeftToRight() || |
|
336 |
((rtlKeyMap = (InputMap)DefaultLookup.get(scrollbar, this, "ScrollBar.ancestorInputMap.RightToLeft")) == null)) { |
|
337 |
return keyMap; |
|
338 |
} else { |
|
339 |
rtlKeyMap.setParent(keyMap); |
|
340 |
return rtlKeyMap; |
|
341 |
} |
|
342 |
} |
|
343 |
return null; |
|
344 |
} |
|
345 |
||
346 |
||
347 |
protected void uninstallListeners() { |
|
348 |
scrollTimer.stop(); |
|
349 |
scrollTimer = null; |
|
350 |
||
351 |
if (decrButton != null){ |
|
352 |
decrButton.removeMouseListener(buttonListener); |
|
353 |
} |
|
354 |
if (incrButton != null){ |
|
355 |
incrButton.removeMouseListener(buttonListener); |
|
356 |
} |
|
357 |
||
358 |
scrollbar.getModel().removeChangeListener(modelListener); |
|
359 |
scrollbar.removeMouseListener(trackListener); |
|
360 |
scrollbar.removeMouseMotionListener(trackListener); |
|
361 |
scrollbar.removePropertyChangeListener(propertyChangeListener); |
|
362 |
scrollbar.removeFocusListener(getHandler()); |
|
363 |
handler = null; |
|
364 |
} |
|
365 |
||
366 |
||
367 |
protected void uninstallDefaults(){ |
|
368 |
LookAndFeel.uninstallBorder(scrollbar); |
|
369 |
if (scrollbar.getLayout() == this) { |
|
370 |
scrollbar.setLayout(null); |
|
371 |
} |
|
372 |
} |
|
373 |
||
374 |
||
375 |
private Handler getHandler() { |
|
376 |
if (handler == null) { |
|
377 |
handler = new Handler(); |
|
378 |
} |
|
379 |
return handler; |
|
380 |
} |
|
381 |
||
382 |
protected TrackListener createTrackListener(){ |
|
383 |
return new TrackListener(); |
|
384 |
} |
|
385 |
||
386 |
protected ArrowButtonListener createArrowButtonListener(){ |
|
387 |
return new ArrowButtonListener(); |
|
388 |
} |
|
389 |
||
390 |
protected ModelListener createModelListener(){ |
|
391 |
return new ModelListener(); |
|
392 |
} |
|
393 |
||
394 |
protected ScrollListener createScrollListener(){ |
|
395 |
return new ScrollListener(); |
|
396 |
} |
|
397 |
||
398 |
protected PropertyChangeListener createPropertyChangeListener() { |
|
399 |
return getHandler(); |
|
400 |
} |
|
401 |
||
402 |
private void updateThumbState(int x, int y) { |
|
403 |
Rectangle rect = getThumbBounds(); |
|
404 |
||
405 |
setThumbRollover(rect.contains(x, y)); |
|
406 |
} |
|
407 |
||
408 |
/** |
|
409 |
* Sets whether or not the mouse is currently over the thumb. |
|
410 |
* |
|
411 |
* @param active True indicates the thumb is currently active. |
|
412 |
* @since 1.5 |
|
413 |
*/ |
|
414 |
protected void setThumbRollover(boolean active) { |
|
415 |
if (thumbActive != active) { |
|
416 |
thumbActive = active; |
|
417 |
scrollbar.repaint(getThumbBounds()); |
|
418 |
} |
|
419 |
} |
|
420 |
||
421 |
/** |
|
422 |
* Returns true if the mouse is currently over the thumb. |
|
423 |
* |
|
424 |
* @return true if the thumb is currently active |
|
425 |
* @since 1.5 |
|
426 |
*/ |
|
427 |
public boolean isThumbRollover() { |
|
428 |
return thumbActive; |
|
429 |
} |
|
430 |
||
431 |
public void paint(Graphics g, JComponent c) { |
|
432 |
paintTrack(g, c, getTrackBounds()); |
|
433 |
Rectangle thumbBounds = getThumbBounds(); |
|
434 |
if (thumbBounds.intersects(g.getClipBounds())) { |
|
435 |
paintThumb(g, c, thumbBounds); |
|
436 |
} |
|
437 |
} |
|
438 |
||
439 |
||
440 |
/** |
|
441 |
* A vertical scrollbar's preferred width is the maximum of |
|
442 |
* preferred widths of the (non <code>null</code>) |
|
443 |
* increment/decrement buttons, |
|
444 |
* and the minimum width of the thumb. The preferred height is the |
|
445 |
* sum of the preferred heights of the same parts. The basis for |
|
446 |
* the preferred size of a horizontal scrollbar is similar. |
|
447 |
* <p> |
|
448 |
* The <code>preferredSize</code> is only computed once, subsequent |
|
449 |
* calls to this method just return a cached size. |
|
450 |
* |
|
451 |
* @param c the <code>JScrollBar</code> that's delegating this method to us |
|
452 |
* @return the preferred size of a Basic JScrollBar |
|
453 |
* @see #getMaximumSize |
|
454 |
* @see #getMinimumSize |
|
455 |
*/ |
|
456 |
public Dimension getPreferredSize(JComponent c) { |
|
457 |
return (scrollbar.getOrientation() == JScrollBar.VERTICAL) |
|
458 |
? new Dimension(scrollBarWidth, 48) |
|
459 |
: new Dimension(48, scrollBarWidth); |
|
460 |
} |
|
461 |
||
462 |
||
463 |
/** |
|
464 |
* @param c The JScrollBar that's delegating this method to us. |
|
465 |
* @return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE); |
|
466 |
* @see #getMinimumSize |
|
467 |
* @see #getPreferredSize |
|
468 |
*/ |
|
469 |
public Dimension getMaximumSize(JComponent c) { |
|
470 |
return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE); |
|
471 |
} |
|
472 |
||
473 |
protected JButton createDecreaseButton(int orientation) { |
|
474 |
return new BasicArrowButton(orientation, |
|
475 |
UIManager.getColor("ScrollBar.thumb"), |
|
476 |
UIManager.getColor("ScrollBar.thumbShadow"), |
|
477 |
UIManager.getColor("ScrollBar.thumbDarkShadow"), |
|
478 |
UIManager.getColor("ScrollBar.thumbHighlight")); |
|
479 |
} |
|
480 |
||
481 |
protected JButton createIncreaseButton(int orientation) { |
|
482 |
return new BasicArrowButton(orientation, |
|
483 |
UIManager.getColor("ScrollBar.thumb"), |
|
484 |
UIManager.getColor("ScrollBar.thumbShadow"), |
|
485 |
UIManager.getColor("ScrollBar.thumbDarkShadow"), |
|
486 |
UIManager.getColor("ScrollBar.thumbHighlight")); |
|
487 |
} |
|
488 |
||
489 |
||
490 |
protected void paintDecreaseHighlight(Graphics g) |
|
491 |
{ |
|
492 |
Insets insets = scrollbar.getInsets(); |
|
493 |
Rectangle thumbR = getThumbBounds(); |
|
494 |
g.setColor(trackHighlightColor); |
|
495 |
||
496 |
if (scrollbar.getOrientation() == JScrollBar.VERTICAL) { |
|
2658 | 497 |
//paint the distance between the start of the track and top of the thumb |
2 | 498 |
int x = insets.left; |
2658 | 499 |
int y = trackRect.y; |
2 | 500 |
int w = scrollbar.getWidth() - (insets.left + insets.right); |
501 |
int h = thumbR.y - y; |
|
502 |
g.fillRect(x, y, w, h); |
|
2658 | 503 |
} else { |
504 |
//if left-to-right, fill the area between the start of the track and |
|
505 |
//the left edge of the thumb. If right-to-left, fill the area between |
|
506 |
//the end of the thumb and end of the track. |
|
2 | 507 |
int x, w; |
508 |
if (scrollbar.getComponentOrientation().isLeftToRight()) { |
|
2658 | 509 |
x = trackRect.x; |
2 | 510 |
w = thumbR.x - x; |
511 |
} else { |
|
512 |
x = thumbR.x + thumbR.width; |
|
2658 | 513 |
w = trackRect.x + trackRect.width - x; |
2 | 514 |
} |
515 |
int y = insets.top; |
|
516 |
int h = scrollbar.getHeight() - (insets.top + insets.bottom); |
|
517 |
g.fillRect(x, y, w, h); |
|
518 |
} |
|
519 |
} |
|
520 |
||
521 |
||
522 |
protected void paintIncreaseHighlight(Graphics g) |
|
523 |
{ |
|
524 |
Insets insets = scrollbar.getInsets(); |
|
525 |
Rectangle thumbR = getThumbBounds(); |
|
526 |
g.setColor(trackHighlightColor); |
|
527 |
||
528 |
if (scrollbar.getOrientation() == JScrollBar.VERTICAL) { |
|
2658 | 529 |
//fill the area between the bottom of the thumb and the end of the track. |
2 | 530 |
int x = insets.left; |
531 |
int y = thumbR.y + thumbR.height; |
|
532 |
int w = scrollbar.getWidth() - (insets.left + insets.right); |
|
2658 | 533 |
int h = trackRect.y + trackRect.height - y; |
2 | 534 |
g.fillRect(x, y, w, h); |
535 |
} |
|
536 |
else { |
|
2658 | 537 |
//if left-to-right, fill the area between the right of the thumb and the |
538 |
//end of the track. If right-to-left, then fill the area to the left of |
|
539 |
//the thumb and the start of the track. |
|
2 | 540 |
int x, w; |
541 |
if (scrollbar.getComponentOrientation().isLeftToRight()) { |
|
542 |
x = thumbR.x + thumbR.width; |
|
2658 | 543 |
w = trackRect.x + trackRect.width - x; |
2 | 544 |
} else { |
2658 | 545 |
x = trackRect.x; |
2 | 546 |
w = thumbR.x - x; |
547 |
} |
|
548 |
int y = insets.top; |
|
549 |
int h = scrollbar.getHeight() - (insets.top + insets.bottom); |
|
550 |
g.fillRect(x, y, w, h); |
|
551 |
} |
|
552 |
} |
|
553 |
||
554 |
||
555 |
protected void paintTrack(Graphics g, JComponent c, Rectangle trackBounds) |
|
556 |
{ |
|
557 |
g.setColor(trackColor); |
|
558 |
g.fillRect(trackBounds.x, trackBounds.y, trackBounds.width, trackBounds.height); |
|
559 |
||
560 |
if(trackHighlight == DECREASE_HIGHLIGHT) { |
|
561 |
paintDecreaseHighlight(g); |
|
562 |
} |
|
563 |
else if(trackHighlight == INCREASE_HIGHLIGHT) { |
|
564 |
paintIncreaseHighlight(g); |
|
565 |
} |
|
566 |
} |
|
567 |
||
568 |
||
569 |
protected void paintThumb(Graphics g, JComponent c, Rectangle thumbBounds) |
|
570 |
{ |
|
571 |
if(thumbBounds.isEmpty() || !scrollbar.isEnabled()) { |
|
572 |
return; |
|
573 |
} |
|
574 |
||
575 |
int w = thumbBounds.width; |
|
576 |
int h = thumbBounds.height; |
|
577 |
||
578 |
g.translate(thumbBounds.x, thumbBounds.y); |
|
579 |
||
580 |
g.setColor(thumbDarkShadowColor); |
|
24163
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
581 |
drawRect(g, 0, 0, w - 1, h - 1); |
2 | 582 |
g.setColor(thumbColor); |
24163
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
583 |
g.fillRect(0, 0, w - 1, h - 1); |
2 | 584 |
|
585 |
g.setColor(thumbHighlightColor); |
|
24163
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
586 |
drawVLine(g, 1, 1, h - 2); |
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
587 |
drawHLine(g, 2, w - 3, 1); |
2 | 588 |
|
589 |
g.setColor(thumbLightShadowColor); |
|
24163
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
590 |
drawHLine(g, 2, w - 2, h - 2); |
d56df89854c4
8032219: [macosx] Scrollbars looks bad under retina in Motif and Metal L&F
serb
parents:
23010
diff
changeset
|
591 |
drawVLine(g, w - 2, 1, h - 3); |
2 | 592 |
|
593 |
g.translate(-thumbBounds.x, -thumbBounds.y); |
|
594 |
} |
|
595 |
||
596 |
||
597 |
/** |
|
4394 | 598 |
* Returns the smallest acceptable size for the thumb. If the scrollbar |
2 | 599 |
* becomes so small that this size isn't available, the thumb will be |
600 |
* hidden. |
|
601 |
* <p> |
|
602 |
* <b>Warning </b>: the value returned by this method should not be |
|
603 |
* be modified, it's a shared static constant. |
|
604 |
* |
|
605 |
* @return The smallest acceptable size for the thumb. |
|
606 |
* @see #getMaximumThumbSize |
|
607 |
*/ |
|
608 |
protected Dimension getMinimumThumbSize() { |
|
609 |
return minimumThumbSize; |
|
610 |
} |
|
611 |
||
612 |
/** |
|
4394 | 613 |
* Returns the largest acceptable size for the thumb. To create a fixed |
2 | 614 |
* size thumb one make this method and <code>getMinimumThumbSize</code> |
615 |
* return the same value. |
|
616 |
* <p> |
|
617 |
* <b>Warning </b>: the value returned by this method should not be |
|
618 |
* be modified, it's a shared static constant. |
|
619 |
* |
|
620 |
* @return The largest acceptable size for the thumb. |
|
621 |
* @see #getMinimumThumbSize |
|
622 |
*/ |
|
623 |
protected Dimension getMaximumThumbSize() { |
|
624 |
return maximumThumbSize; |
|
625 |
} |
|
626 |
||
627 |
||
628 |
/* |
|
629 |
* LayoutManager Implementation |
|
630 |
*/ |
|
631 |
||
632 |
public void addLayoutComponent(String name, Component child) {} |
|
633 |
public void removeLayoutComponent(Component child) {} |
|
634 |
||
635 |
public Dimension preferredLayoutSize(Container scrollbarContainer) { |
|
636 |
return getPreferredSize((JComponent)scrollbarContainer); |
|
637 |
} |
|
638 |
||
639 |
public Dimension minimumLayoutSize(Container scrollbarContainer) { |
|
640 |
return getMinimumSize((JComponent)scrollbarContainer); |
|
641 |
} |
|
642 |
||
643 |
private int getValue(JScrollBar sb) { |
|
644 |
return (useCachedValue) ? scrollBarValue : sb.getValue(); |
|
645 |
} |
|
646 |
||
647 |
protected void layoutVScrollbar(JScrollBar sb) |
|
648 |
{ |
|
649 |
Dimension sbSize = sb.getSize(); |
|
650 |
Insets sbInsets = sb.getInsets(); |
|
651 |
||
652 |
/* |
|
653 |
* Width and left edge of the buttons and thumb. |
|
654 |
*/ |
|
655 |
int itemW = sbSize.width - (sbInsets.left + sbInsets.right); |
|
656 |
int itemX = sbInsets.left; |
|
657 |
||
658 |
/* Nominal locations of the buttons, assuming their preferred |
|
659 |
* size will fit. |
|
660 |
*/ |
|
661 |
boolean squareButtons = DefaultLookup.getBoolean( |
|
662 |
scrollbar, this, "ScrollBar.squareButtons", false); |
|
663 |
int decrButtonH = squareButtons ? itemW : |
|
664 |
decrButton.getPreferredSize().height; |
|
665 |
int decrButtonY = sbInsets.top; |
|
666 |
||
667 |
int incrButtonH = squareButtons ? itemW : |
|
668 |
incrButton.getPreferredSize().height; |
|
669 |
int incrButtonY = sbSize.height - (sbInsets.bottom + incrButtonH); |
|
670 |
||
671 |
/* The thumb must fit within the height left over after we |
|
2658 | 672 |
* subtract the preferredSize of the buttons and the insets |
673 |
* and the gaps |
|
2 | 674 |
*/ |
675 |
int sbInsetsH = sbInsets.top + sbInsets.bottom; |
|
676 |
int sbButtonsH = decrButtonH + incrButtonH; |
|
2658 | 677 |
int gaps = decrGap + incrGap; |
678 |
float trackH = sbSize.height - (sbInsetsH + sbButtonsH) - gaps; |
|
2 | 679 |
|
680 |
/* Compute the height and origin of the thumb. The case |
|
681 |
* where the thumb is at the bottom edge is handled specially |
|
682 |
* to avoid numerical problems in computing thumbY. Enforce |
|
683 |
* the thumbs min/max dimensions. If the thumb doesn't |
|
684 |
* fit in the track (trackH) we'll hide it later. |
|
685 |
*/ |
|
686 |
float min = sb.getMinimum(); |
|
687 |
float extent = sb.getVisibleAmount(); |
|
688 |
float range = sb.getMaximum() - min; |
|
689 |
float value = getValue(sb); |
|
690 |
||
691 |
int thumbH = (range <= 0) |
|
692 |
? getMaximumThumbSize().height : (int)(trackH * (extent / range)); |
|
693 |
thumbH = Math.max(thumbH, getMinimumThumbSize().height); |
|
694 |
thumbH = Math.min(thumbH, getMaximumThumbSize().height); |
|
695 |
||
2658 | 696 |
int thumbY = incrButtonY - incrGap - thumbH; |
2 | 697 |
if (value < (sb.getMaximum() - sb.getVisibleAmount())) { |
698 |
float thumbRange = trackH - thumbH; |
|
699 |
thumbY = (int)(0.5f + (thumbRange * ((value - min) / (range - extent)))); |
|
2658 | 700 |
thumbY += decrButtonY + decrButtonH + decrGap; |
2 | 701 |
} |
702 |
||
703 |
/* If the buttons don't fit, allocate half of the available |
|
704 |
* space to each and move the lower one (incrButton) down. |
|
705 |
*/ |
|
706 |
int sbAvailButtonH = (sbSize.height - sbInsetsH); |
|
707 |
if (sbAvailButtonH < sbButtonsH) { |
|
708 |
incrButtonH = decrButtonH = sbAvailButtonH / 2; |
|
709 |
incrButtonY = sbSize.height - (sbInsets.bottom + incrButtonH); |
|
710 |
} |
|
711 |
decrButton.setBounds(itemX, decrButtonY, itemW, decrButtonH); |
|
712 |
incrButton.setBounds(itemX, incrButtonY, itemW, incrButtonH); |
|
713 |
||
714 |
/* Update the trackRect field. |
|
715 |
*/ |
|
2658 | 716 |
int itrackY = decrButtonY + decrButtonH + decrGap; |
717 |
int itrackH = incrButtonY - incrGap - itrackY; |
|
2 | 718 |
trackRect.setBounds(itemX, itrackY, itemW, itrackH); |
719 |
||
720 |
/* If the thumb isn't going to fit, zero it's bounds. Otherwise |
|
721 |
* make sure it fits between the buttons. Note that setting the |
|
722 |
* thumbs bounds will cause a repaint. |
|
723 |
*/ |
|
724 |
if(thumbH >= (int)trackH) { |
|
725 |
if (UIManager.getBoolean("ScrollBar.alwaysShowThumb")) { |
|
726 |
// This is used primarily for GTK L&F, which expands the |
|
727 |
// thumb to fit the track when it would otherwise be hidden. |
|
728 |
setThumbBounds(itemX, itrackY, itemW, itrackH); |
|
729 |
} else { |
|
730 |
// Other L&F's simply hide the thumb in this case. |
|
731 |
setThumbBounds(0, 0, 0, 0); |
|
732 |
} |
|
733 |
} |
|
734 |
else { |
|
2658 | 735 |
if ((thumbY + thumbH) > incrButtonY - incrGap) { |
736 |
thumbY = incrButtonY - incrGap - thumbH; |
|
2 | 737 |
} |
2658 | 738 |
if (thumbY < (decrButtonY + decrButtonH + decrGap)) { |
739 |
thumbY = decrButtonY + decrButtonH + decrGap + 1; |
|
2 | 740 |
} |
741 |
setThumbBounds(itemX, thumbY, itemW, thumbH); |
|
742 |
} |
|
743 |
} |
|
744 |
||
745 |
||
746 |
protected void layoutHScrollbar(JScrollBar sb) |
|
747 |
{ |
|
748 |
Dimension sbSize = sb.getSize(); |
|
749 |
Insets sbInsets = sb.getInsets(); |
|
750 |
||
751 |
/* Height and top edge of the buttons and thumb. |
|
752 |
*/ |
|
753 |
int itemH = sbSize.height - (sbInsets.top + sbInsets.bottom); |
|
754 |
int itemY = sbInsets.top; |
|
755 |
||
756 |
boolean ltr = sb.getComponentOrientation().isLeftToRight(); |
|
757 |
||
758 |
/* Nominal locations of the buttons, assuming their preferred |
|
759 |
* size will fit. |
|
760 |
*/ |
|
761 |
boolean squareButtons = DefaultLookup.getBoolean( |
|
762 |
scrollbar, this, "ScrollBar.squareButtons", false); |
|
763 |
int leftButtonW = squareButtons ? itemH : |
|
764 |
decrButton.getPreferredSize().width; |
|
765 |
int rightButtonW = squareButtons ? itemH : |
|
766 |
incrButton.getPreferredSize().width; |
|
767 |
if (!ltr) { |
|
768 |
int temp = leftButtonW; |
|
769 |
leftButtonW = rightButtonW; |
|
770 |
rightButtonW = temp; |
|
771 |
} |
|
772 |
int leftButtonX = sbInsets.left; |
|
773 |
int rightButtonX = sbSize.width - (sbInsets.right + rightButtonW); |
|
2658 | 774 |
int leftGap = ltr ? decrGap : incrGap; |
775 |
int rightGap = ltr ? incrGap : decrGap; |
|
2 | 776 |
|
777 |
/* The thumb must fit within the width left over after we |
|
2658 | 778 |
* subtract the preferredSize of the buttons and the insets |
779 |
* and the gaps |
|
2 | 780 |
*/ |
781 |
int sbInsetsW = sbInsets.left + sbInsets.right; |
|
782 |
int sbButtonsW = leftButtonW + rightButtonW; |
|
2658 | 783 |
float trackW = sbSize.width - (sbInsetsW + sbButtonsW) - (leftGap + rightGap); |
2 | 784 |
|
785 |
/* Compute the width and origin of the thumb. Enforce |
|
786 |
* the thumbs min/max dimensions. The case where the thumb |
|
787 |
* is at the right edge is handled specially to avoid numerical |
|
788 |
* problems in computing thumbX. If the thumb doesn't |
|
789 |
* fit in the track (trackH) we'll hide it later. |
|
790 |
*/ |
|
791 |
float min = sb.getMinimum(); |
|
792 |
float max = sb.getMaximum(); |
|
793 |
float extent = sb.getVisibleAmount(); |
|
794 |
float range = max - min; |
|
795 |
float value = getValue(sb); |
|
796 |
||
797 |
int thumbW = (range <= 0) |
|
798 |
? getMaximumThumbSize().width : (int)(trackW * (extent / range)); |
|
799 |
thumbW = Math.max(thumbW, getMinimumThumbSize().width); |
|
800 |
thumbW = Math.min(thumbW, getMaximumThumbSize().width); |
|
801 |
||
2658 | 802 |
int thumbX = ltr ? rightButtonX - rightGap - thumbW : leftButtonX + leftButtonW + leftGap; |
2 | 803 |
if (value < (max - sb.getVisibleAmount())) { |
804 |
float thumbRange = trackW - thumbW; |
|
805 |
if( ltr ) { |
|
806 |
thumbX = (int)(0.5f + (thumbRange * ((value - min) / (range - extent)))); |
|
807 |
} else { |
|
808 |
thumbX = (int)(0.5f + (thumbRange * ((max - extent - value) / (range - extent)))); |
|
809 |
} |
|
2658 | 810 |
thumbX += leftButtonX + leftButtonW + leftGap; |
2 | 811 |
} |
812 |
||
813 |
/* If the buttons don't fit, allocate half of the available |
|
814 |
* space to each and move the right one over. |
|
815 |
*/ |
|
816 |
int sbAvailButtonW = (sbSize.width - sbInsetsW); |
|
817 |
if (sbAvailButtonW < sbButtonsW) { |
|
818 |
rightButtonW = leftButtonW = sbAvailButtonW / 2; |
|
2658 | 819 |
rightButtonX = sbSize.width - (sbInsets.right + rightButtonW + rightGap); |
2 | 820 |
} |
821 |
||
822 |
(ltr ? decrButton : incrButton).setBounds(leftButtonX, itemY, leftButtonW, itemH); |
|
823 |
(ltr ? incrButton : decrButton).setBounds(rightButtonX, itemY, rightButtonW, itemH); |
|
824 |
||
825 |
/* Update the trackRect field. |
|
826 |
*/ |
|
2658 | 827 |
int itrackX = leftButtonX + leftButtonW + leftGap; |
828 |
int itrackW = rightButtonX - rightGap - itrackX; |
|
2 | 829 |
trackRect.setBounds(itrackX, itemY, itrackW, itemH); |
830 |
||
831 |
/* Make sure the thumb fits between the buttons. Note |
|
832 |
* that setting the thumbs bounds causes a repaint. |
|
833 |
*/ |
|
834 |
if (thumbW >= (int)trackW) { |
|
835 |
if (UIManager.getBoolean("ScrollBar.alwaysShowThumb")) { |
|
836 |
// This is used primarily for GTK L&F, which expands the |
|
837 |
// thumb to fit the track when it would otherwise be hidden. |
|
838 |
setThumbBounds(itrackX, itemY, itrackW, itemH); |
|
839 |
} else { |
|
840 |
// Other L&F's simply hide the thumb in this case. |
|
841 |
setThumbBounds(0, 0, 0, 0); |
|
842 |
} |
|
843 |
} |
|
844 |
else { |
|
2658 | 845 |
if (thumbX + thumbW > rightButtonX - rightGap) { |
846 |
thumbX = rightButtonX - rightGap - thumbW; |
|
2 | 847 |
} |
2658 | 848 |
if (thumbX < leftButtonX + leftButtonW + leftGap) { |
849 |
thumbX = leftButtonX + leftButtonW + leftGap + 1; |
|
2 | 850 |
} |
851 |
setThumbBounds(thumbX, itemY, thumbW, itemH); |
|
852 |
} |
|
853 |
} |
|
854 |
||
855 |
public void layoutContainer(Container scrollbarContainer) |
|
856 |
{ |
|
857 |
/* If the user is dragging the value, we'll assume that the |
|
858 |
* scrollbars layout is OK modulo the thumb which is being |
|
859 |
* handled by the dragging code. |
|
860 |
*/ |
|
861 |
if (isDragging) { |
|
862 |
return; |
|
863 |
} |
|
864 |
||
865 |
JScrollBar scrollbar = (JScrollBar)scrollbarContainer; |
|
866 |
switch (scrollbar.getOrientation()) { |
|
867 |
case JScrollBar.VERTICAL: |
|
868 |
layoutVScrollbar(scrollbar); |
|
869 |
break; |
|
870 |
||
871 |
case JScrollBar.HORIZONTAL: |
|
872 |
layoutHScrollbar(scrollbar); |
|
873 |
break; |
|
874 |
} |
|
875 |
} |
|
876 |
||
877 |
||
878 |
/** |
|
879 |
* Set the bounds of the thumb and force a repaint that includes |
|
880 |
* the old thumbBounds and the new one. |
|
881 |
* |
|
26012
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
882 |
* @param x set the x location of the thumb |
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
883 |
* @param y set the y location of the thumb |
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
884 |
* @param width set the width of the thumb |
36ecb579dbc8
8050924: Fix doclint missing tag warnings in javax.swing.plaf.basic parts 5b,6b of 7
yan
parents:
25565
diff
changeset
|
885 |
* @param height set the height of the thumb |
2 | 886 |
* @see #getThumbBounds |
887 |
*/ |
|
888 |
protected void setThumbBounds(int x, int y, int width, int height) |
|
889 |
{ |
|
890 |
/* If the thumbs bounds haven't changed, we're done. |
|
891 |
*/ |
|
892 |
if ((thumbRect.x == x) && |
|
893 |
(thumbRect.y == y) && |
|
894 |
(thumbRect.width == width) && |
|
895 |
(thumbRect.height == height)) { |
|
896 |
return; |
|
897 |
} |
|
898 |
||
899 |
/* Update thumbRect, and repaint the union of x,y,w,h and |
|
900 |
* the old thumbRect. |
|
901 |
*/ |
|
902 |
int minX = Math.min(x, thumbRect.x); |
|
903 |
int minY = Math.min(y, thumbRect.y); |
|
904 |
int maxX = Math.max(x + width, thumbRect.x + thumbRect.width); |
|
905 |
int maxY = Math.max(y + height, thumbRect.y + thumbRect.height); |
|
906 |
||
907 |
thumbRect.setBounds(x, y, width, height); |
|
908 |
scrollbar.repaint(minX, minY, maxX - minX, maxY - minY); |
|
909 |
||
910 |
// Once there is API to determine the mouse location this will need |
|
911 |
// to be changed. |
|
912 |
setThumbRollover(false); |
|
913 |
} |
|
914 |
||
915 |
||
916 |
/** |
|
917 |
* Return the current size/location of the thumb. |
|
918 |
* <p> |
|
919 |
* <b>Warning </b>: the value returned by this method should not be |
|
920 |
* be modified, it's a reference to the actual rectangle, not a copy. |
|
921 |
* |
|
922 |
* @return The current size/location of the thumb. |
|
923 |
* @see #setThumbBounds |
|
924 |
*/ |
|
925 |
protected Rectangle getThumbBounds() { |
|
926 |
return thumbRect; |
|
927 |
} |
|
928 |
||
929 |
||
930 |
/** |
|
931 |
* Returns the current bounds of the track, i.e. the space in between |
|
932 |
* the increment and decrement buttons, less the insets. The value |
|
933 |
* returned by this method is updated each time the scrollbar is |
|
934 |
* laid out (validated). |
|
935 |
* <p> |
|
936 |
* <b>Warning </b>: the value returned by this method should not be |
|
937 |
* be modified, it's a reference to the actual rectangle, not a copy. |
|
938 |
* |
|
939 |
* @return the current bounds of the scrollbar track |
|
940 |
* @see #layoutContainer |
|
941 |
*/ |
|
942 |
protected Rectangle getTrackBounds() { |
|
943 |
return trackRect; |
|
944 |
} |
|
945 |
||
946 |
/* |
|
947 |
* Method for scrolling by a block increment. |
|
948 |
* Added for mouse wheel scrolling support, RFE 4202656. |
|
949 |
*/ |
|
950 |
static void scrollByBlock(JScrollBar scrollbar, int direction) { |
|
951 |
// This method is called from BasicScrollPaneUI to implement wheel |
|
952 |
// scrolling, and also from scrollByBlock(). |
|
953 |
int oldValue = scrollbar.getValue(); |
|
954 |
int blockIncrement = scrollbar.getBlockIncrement(direction); |
|
955 |
int delta = blockIncrement * ((direction > 0) ? +1 : -1); |
|
956 |
int newValue = oldValue + delta; |
|
957 |
||
958 |
// Check for overflow. |
|
959 |
if (delta > 0 && newValue < oldValue) { |
|
960 |
newValue = scrollbar.getMaximum(); |
|
961 |
} |
|
962 |
else if (delta < 0 && newValue > oldValue) { |
|
963 |
newValue = scrollbar.getMinimum(); |
|
964 |
} |
|
965 |
||
966 |
scrollbar.setValue(newValue); |
|
967 |
} |
|
968 |
||
969 |
protected void scrollByBlock(int direction) |
|
970 |
{ |
|
971 |
scrollByBlock(scrollbar, direction); |
|
972 |
trackHighlight = direction > 0 ? INCREASE_HIGHLIGHT : DECREASE_HIGHLIGHT; |
|
973 |
Rectangle dirtyRect = getTrackBounds(); |
|
974 |
scrollbar.repaint(dirtyRect.x, dirtyRect.y, dirtyRect.width, dirtyRect.height); |
|
975 |
} |
|
976 |
||
977 |
/* |
|
978 |
* Method for scrolling by a unit increment. |
|
979 |
* Added for mouse wheel scrolling support, RFE 4202656. |
|
980 |
* |
|
981 |
* If limitByBlock is set to true, the scrollbar will scroll at least 1 |
|
982 |
* unit increment, but will not scroll farther than the block increment. |
|
983 |
* See BasicScrollPaneUI.Handler.mouseWheelMoved(). |
|
984 |
*/ |
|
985 |
static void scrollByUnits(JScrollBar scrollbar, int direction, |
|
986 |
int units, boolean limitToBlock) { |
|
987 |
// This method is called from BasicScrollPaneUI to implement wheel |
|
988 |
// scrolling, as well as from scrollByUnit(). |
|
989 |
int delta; |
|
990 |
int limit = -1; |
|
991 |
||
992 |
if (limitToBlock) { |
|
993 |
if (direction < 0) { |
|
994 |
limit = scrollbar.getValue() - |
|
995 |
scrollbar.getBlockIncrement(direction); |
|
996 |
} |
|
997 |
else { |
|
998 |
limit = scrollbar.getValue() + |
|
999 |
scrollbar.getBlockIncrement(direction); |
|
1000 |
} |
|
1001 |
} |
|
1002 |
||
1003 |
for (int i=0; i<units; i++) { |
|
1004 |
if (direction > 0) { |
|
1005 |
delta = scrollbar.getUnitIncrement(direction); |
|
1006 |
} |
|
1007 |
else { |
|
1008 |
delta = -scrollbar.getUnitIncrement(direction); |
|
1009 |
} |
|
1010 |
||
1011 |
int oldValue = scrollbar.getValue(); |
|
1012 |
int newValue = oldValue + delta; |
|
1013 |
||
1014 |
// Check for overflow. |
|
1015 |
if (delta > 0 && newValue < oldValue) { |
|
1016 |
newValue = scrollbar.getMaximum(); |
|
1017 |
} |
|
1018 |
else if (delta < 0 && newValue > oldValue) { |
|
1019 |
newValue = scrollbar.getMinimum(); |
|
1020 |
} |
|
1021 |
if (oldValue == newValue) { |
|
1022 |
break; |
|
1023 |
} |
|
1024 |
||
1025 |
if (limitToBlock && i > 0) { |
|
1026 |
assert limit != -1; |
|
1027 |
if ((direction < 0 && newValue < limit) || |
|
1028 |
(direction > 0 && newValue > limit)) { |
|
1029 |
break; |
|
1030 |
} |
|
1031 |
} |
|
1032 |
scrollbar.setValue(newValue); |
|
1033 |
} |
|
1034 |
} |
|
1035 |
||
1036 |
protected void scrollByUnit(int direction) { |
|
1037 |
scrollByUnits(scrollbar, direction, 1, false); |
|
1038 |
} |
|
1039 |
||
1040 |
/** |
|
1041 |
* Indicates whether the user can absolutely position the thumb with |
|
1042 |
* a mouse gesture (usually the middle mouse button). |
|
1043 |
* |
|
1044 |
* @return true if a mouse gesture can absolutely position the thumb |
|
1045 |
* @since 1.5 |
|
1046 |
*/ |
|
1047 |
public boolean getSupportsAbsolutePositioning() { |
|
1048 |
return supportsAbsolutePositioning; |
|
1049 |
} |
|
1050 |
||
1051 |
/** |
|
1052 |
* A listener to listen for model changes. |
|
1053 |
* |
|
1054 |
*/ |
|
1055 |
protected class ModelListener implements ChangeListener { |
|
1056 |
public void stateChanged(ChangeEvent e) { |
|
1057 |
if (!useCachedValue) { |
|
1058 |
scrollBarValue = scrollbar.getValue(); |
|
1059 |
} |
|
1060 |
layoutContainer(scrollbar); |
|
1061 |
useCachedValue = false; |
|
1062 |
} |
|
1063 |
} |
|
1064 |
||
1065 |
||
1066 |
/** |
|
1067 |
* Track mouse drags. |
|
1068 |
*/ |
|
1069 |
protected class TrackListener |
|
1070 |
extends MouseAdapter implements MouseMotionListener |
|
1071 |
{ |
|
1072 |
protected transient int offset; |
|
1073 |
protected transient int currentMouseX, currentMouseY; |
|
1074 |
private transient int direction = +1; |
|
1075 |
||
1076 |
public void mouseReleased(MouseEvent e) |
|
1077 |
{ |
|
1078 |
if (isDragging) { |
|
1079 |
updateThumbState(e.getX(), e.getY()); |
|
1080 |
} |
|
1081 |
if (SwingUtilities.isRightMouseButton(e) || |
|
1082 |
(!getSupportsAbsolutePositioning() && |
|
1083 |
SwingUtilities.isMiddleMouseButton(e))) |
|
1084 |
return; |
|
1085 |
if(!scrollbar.isEnabled()) |
|
1086 |
return; |
|
1087 |
||
1088 |
Rectangle r = getTrackBounds(); |
|
1089 |
scrollbar.repaint(r.x, r.y, r.width, r.height); |
|
1090 |
||
1091 |
trackHighlight = NO_HIGHLIGHT; |
|
1092 |
isDragging = false; |
|
1093 |
offset = 0; |
|
1094 |
scrollTimer.stop(); |
|
1095 |
useCachedValue = true; |
|
1096 |
scrollbar.setValueIsAdjusting(false); |
|
1097 |
} |
|
1098 |
||
1099 |
||
1100 |
/** |
|
1101 |
* If the mouse is pressed above the "thumb" component |
|
1102 |
* then reduce the scrollbars value by one page ("page up"), |
|
1103 |
* otherwise increase it by one page. If there is no |
|
1104 |
* thumb then page up if the mouse is in the upper half |
|
1105 |
* of the track. |
|
1106 |
*/ |
|
1107 |
public void mousePressed(MouseEvent e) |
|
1108 |
{ |
|
1109 |
if (SwingUtilities.isRightMouseButton(e) || |
|
1110 |
(!getSupportsAbsolutePositioning() && |
|
1111 |
SwingUtilities.isMiddleMouseButton(e))) |
|
1112 |
return; |
|
1113 |
if(!scrollbar.isEnabled()) |
|
1114 |
return; |
|
1115 |
||
1116 |
if (!scrollbar.hasFocus() && scrollbar.isRequestFocusEnabled()) { |
|
1117 |
scrollbar.requestFocus(); |
|
1118 |
} |
|
1119 |
||
1120 |
useCachedValue = true; |
|
1121 |
scrollbar.setValueIsAdjusting(true); |
|
1122 |
||
1123 |
currentMouseX = e.getX(); |
|
1124 |
currentMouseY = e.getY(); |
|
1125 |
||
1126 |
// Clicked in the Thumb area? |
|
1127 |
if(getThumbBounds().contains(currentMouseX, currentMouseY)) { |
|
1128 |
switch (scrollbar.getOrientation()) { |
|
1129 |
case JScrollBar.VERTICAL: |
|
1130 |
offset = currentMouseY - getThumbBounds().y; |
|
1131 |
break; |
|
1132 |
case JScrollBar.HORIZONTAL: |
|
1133 |
offset = currentMouseX - getThumbBounds().x; |
|
1134 |
break; |
|
1135 |
} |
|
1136 |
isDragging = true; |
|
1137 |
return; |
|
1138 |
} |
|
1139 |
else if (getSupportsAbsolutePositioning() && |
|
1140 |
SwingUtilities.isMiddleMouseButton(e)) { |
|
1141 |
switch (scrollbar.getOrientation()) { |
|
1142 |
case JScrollBar.VERTICAL: |
|
1143 |
offset = getThumbBounds().height / 2; |
|
1144 |
break; |
|
1145 |
case JScrollBar.HORIZONTAL: |
|
1146 |
offset = getThumbBounds().width / 2; |
|
1147 |
break; |
|
1148 |
} |
|
1149 |
isDragging = true; |
|
1150 |
setValueFrom(e); |
|
1151 |
return; |
|
1152 |
} |
|
1153 |
isDragging = false; |
|
1154 |
||
1155 |
Dimension sbSize = scrollbar.getSize(); |
|
1156 |
direction = +1; |
|
1157 |
||
1158 |
switch (scrollbar.getOrientation()) { |
|
1159 |
case JScrollBar.VERTICAL: |
|
1160 |
if (getThumbBounds().isEmpty()) { |
|
1161 |
int scrollbarCenter = sbSize.height / 2; |
|
1162 |
direction = (currentMouseY < scrollbarCenter) ? -1 : +1; |
|
1163 |
} else { |
|
1164 |
int thumbY = getThumbBounds().y; |
|
1165 |
direction = (currentMouseY < thumbY) ? -1 : +1; |
|
1166 |
} |
|
1167 |
break; |
|
1168 |
case JScrollBar.HORIZONTAL: |
|
1169 |
if (getThumbBounds().isEmpty()) { |
|
1170 |
int scrollbarCenter = sbSize.width / 2; |
|
1171 |
direction = (currentMouseX < scrollbarCenter) ? -1 : +1; |
|
1172 |
} else { |
|
1173 |
int thumbX = getThumbBounds().x; |
|
1174 |
direction = (currentMouseX < thumbX) ? -1 : +1; |
|
1175 |
} |
|
1176 |
if (!scrollbar.getComponentOrientation().isLeftToRight()) { |
|
1177 |
direction = -direction; |
|
1178 |
} |
|
1179 |
break; |
|
1180 |
} |
|
1181 |
scrollByBlock(direction); |
|
1182 |
||
1183 |
scrollTimer.stop(); |
|
1184 |
scrollListener.setDirection(direction); |
|
1185 |
scrollListener.setScrollByBlock(true); |
|
1186 |
startScrollTimerIfNecessary(); |
|
1187 |
} |
|
1188 |
||
1189 |
||
1190 |
/** |
|
1191 |
* Set the models value to the position of the thumb's top of Vertical |
|
1192 |
* scrollbar, or the left/right of Horizontal scrollbar in |
|
1193 |
* left-to-right/right-to-left scrollbar relative to the origin of the |
|
1194 |
* track. |
|
1195 |
*/ |
|
1196 |
public void mouseDragged(MouseEvent e) { |
|
1197 |
if (SwingUtilities.isRightMouseButton(e) || |
|
1198 |
(!getSupportsAbsolutePositioning() && |
|
1199 |
SwingUtilities.isMiddleMouseButton(e))) |
|
1200 |
return; |
|
1201 |
if(!scrollbar.isEnabled() || getThumbBounds().isEmpty()) { |
|
1202 |
return; |
|
1203 |
} |
|
1204 |
if (isDragging) { |
|
1205 |
setValueFrom(e); |
|
1206 |
} else { |
|
1207 |
currentMouseX = e.getX(); |
|
1208 |
currentMouseY = e.getY(); |
|
1209 |
updateThumbState(currentMouseX, currentMouseY); |
|
1210 |
startScrollTimerIfNecessary(); |
|
1211 |
} |
|
1212 |
} |
|
1213 |
||
1214 |
private void setValueFrom(MouseEvent e) { |
|
1215 |
boolean active = isThumbRollover(); |
|
1216 |
BoundedRangeModel model = scrollbar.getModel(); |
|
1217 |
Rectangle thumbR = getThumbBounds(); |
|
1218 |
float trackLength; |
|
1219 |
int thumbMin, thumbMax, thumbPos; |
|
1220 |
||
1221 |
if (scrollbar.getOrientation() == JScrollBar.VERTICAL) { |
|
2658 | 1222 |
thumbMin = trackRect.y; |
1223 |
thumbMax = trackRect.y + trackRect.height - thumbR.height; |
|
2 | 1224 |
thumbPos = Math.min(thumbMax, Math.max(thumbMin, (e.getY() - offset))); |
1225 |
setThumbBounds(thumbR.x, thumbPos, thumbR.width, thumbR.height); |
|
1226 |
trackLength = getTrackBounds().height; |
|
1227 |
} |
|
1228 |
else { |
|
2658 | 1229 |
thumbMin = trackRect.x; |
1230 |
thumbMax = trackRect.x + trackRect.width - thumbR.width; |
|
2 | 1231 |
thumbPos = Math.min(thumbMax, Math.max(thumbMin, (e.getX() - offset))); |
1232 |
setThumbBounds(thumbPos, thumbR.y, thumbR.width, thumbR.height); |
|
1233 |
trackLength = getTrackBounds().width; |
|
1234 |
} |
|
1235 |
||
1236 |
/* Set the scrollbars value. If the thumb has reached the end of |
|
1237 |
* the scrollbar, then just set the value to its maximum. Otherwise |
|
1238 |
* compute the value as accurately as possible. |
|
1239 |
*/ |
|
1240 |
if (thumbPos == thumbMax) { |
|
1241 |
if (scrollbar.getOrientation() == JScrollBar.VERTICAL || |
|
1242 |
scrollbar.getComponentOrientation().isLeftToRight()) { |
|
1243 |
scrollbar.setValue(model.getMaximum() - model.getExtent()); |
|
1244 |
} else { |
|
1245 |
scrollbar.setValue(model.getMinimum()); |
|
1246 |
} |
|
1247 |
} |
|
1248 |
else { |
|
1249 |
float valueMax = model.getMaximum() - model.getExtent(); |
|
1250 |
float valueRange = valueMax - model.getMinimum(); |
|
1251 |
float thumbValue = thumbPos - thumbMin; |
|
1252 |
float thumbRange = thumbMax - thumbMin; |
|
1253 |
int value; |
|
1254 |
if (scrollbar.getOrientation() == JScrollBar.VERTICAL || |
|
1255 |
scrollbar.getComponentOrientation().isLeftToRight()) { |
|
1256 |
value = (int)(0.5 + ((thumbValue / thumbRange) * valueRange)); |
|
1257 |
} else { |
|
1258 |
value = (int)(0.5 + (((thumbMax - thumbPos) / thumbRange) * valueRange)); |
|
1259 |
} |
|
1260 |
||
1261 |
useCachedValue = true; |
|
1262 |
scrollBarValue = value + model.getMinimum(); |
|
1263 |
scrollbar.setValue(adjustValueIfNecessary(scrollBarValue)); |
|
1264 |
} |
|
1265 |
setThumbRollover(active); |
|
1266 |
} |
|
1267 |
||
1268 |
private int adjustValueIfNecessary(int value) { |
|
1269 |
if (scrollbar.getParent() instanceof JScrollPane) { |
|
1270 |
JScrollPane scrollpane = (JScrollPane)scrollbar.getParent(); |
|
1271 |
JViewport viewport = scrollpane.getViewport(); |
|
1272 |
Component view = viewport.getView(); |
|
1273 |
if (view instanceof JList) { |
|
25565
ce603b34c98d
8043548: Fix raw and unchecked lint warnings in javax.swing.plaf.*
darcy
parents:
24163
diff
changeset
|
1274 |
JList<?> list = (JList)view; |
2 | 1275 |
if (DefaultLookup.getBoolean(list, list.getUI(), |
1276 |
"List.lockToPositionOnScroll", false)) { |
|
1277 |
int adjustedValue = value; |
|
1278 |
int mode = list.getLayoutOrientation(); |
|
1279 |
int orientation = scrollbar.getOrientation(); |
|
1280 |
if (orientation == JScrollBar.VERTICAL && mode == JList.VERTICAL) { |
|
1281 |
int index = list.locationToIndex(new Point(0, value)); |
|
1282 |
Rectangle rect = list.getCellBounds(index, index); |
|
1283 |
if (rect != null) { |
|
1284 |
adjustedValue = rect.y; |
|
1285 |
} |
|
1286 |
} |
|
1287 |
if (orientation == JScrollBar.HORIZONTAL && |
|
1288 |
(mode == JList.VERTICAL_WRAP || mode == JList.HORIZONTAL_WRAP)) { |
|
1289 |
if (scrollpane.getComponentOrientation().isLeftToRight()) { |
|
1290 |
int index = list.locationToIndex(new Point(value, 0)); |
|
1291 |
Rectangle rect = list.getCellBounds(index, index); |
|
1292 |
if (rect != null) { |
|
1293 |
adjustedValue = rect.x; |
|
1294 |
} |
|
1295 |
} |
|
1296 |
else { |
|
1297 |
Point loc = new Point(value, 0); |
|
1298 |
int extent = viewport.getExtentSize().width; |
|
1299 |
loc.x += extent - 1; |
|
1300 |
int index = list.locationToIndex(loc); |
|
1301 |
Rectangle rect = list.getCellBounds(index, index); |
|
1302 |
if (rect != null) { |
|
1303 |
adjustedValue = rect.x + rect.width - extent; |
|
1304 |
} |
|
1305 |
} |
|
1306 |
} |
|
1307 |
value = adjustedValue; |
|
1308 |
||
1309 |
} |
|
1310 |
} |
|
1311 |
} |
|
1312 |
return value; |
|
1313 |
} |
|
1314 |
||
1315 |
private void startScrollTimerIfNecessary() { |
|
1316 |
if (scrollTimer.isRunning()) { |
|
1317 |
return; |
|
1318 |
} |
|
1319 |
||
1320 |
Rectangle tb = getThumbBounds(); |
|
1321 |
||
1322 |
switch (scrollbar.getOrientation()) { |
|
1323 |
case JScrollBar.VERTICAL: |
|
1324 |
if (direction > 0) { |
|
1325 |
if (tb.y + tb.height < trackListener.currentMouseY) { |
|
1326 |
scrollTimer.start(); |
|
1327 |
} |
|
1328 |
} else if (tb.y > trackListener.currentMouseY) { |
|
1329 |
scrollTimer.start(); |
|
1330 |
} |
|
1331 |
break; |
|
1332 |
case JScrollBar.HORIZONTAL: |
|
1333 |
if ((direction > 0 && isMouseAfterThumb()) |
|
1334 |
|| (direction < 0 && isMouseBeforeThumb())) { |
|
1335 |
||
1336 |
scrollTimer.start(); |
|
1337 |
} |
|
1338 |
break; |
|
1339 |
} |
|
1340 |
} |
|
1341 |
||
1342 |
public void mouseMoved(MouseEvent e) { |
|
1343 |
if (!isDragging) { |
|
1344 |
updateThumbState(e.getX(), e.getY()); |
|
1345 |
} |
|
1346 |
} |
|
1347 |
||
1348 |
/** |
|
1349 |
* Invoked when the mouse exits the scrollbar. |
|
1350 |
* |
|
1351 |
* @param e MouseEvent further describing the event |
|
1352 |
* @since 1.5 |
|
1353 |
*/ |
|
1354 |
public void mouseExited(MouseEvent e) { |
|
1355 |
if (!isDragging) { |
|
1356 |
setThumbRollover(false); |
|
1357 |
} |
|
1358 |
} |
|
1359 |
} |
|
1360 |
||
1361 |
||
1362 |
/** |
|
1363 |
* Listener for cursor keys. |
|
1364 |
*/ |
|
1365 |
protected class ArrowButtonListener extends MouseAdapter |
|
1366 |
{ |
|
1367 |
// Because we are handling both mousePressed and Actions |
|
1368 |
// we need to make sure we don't fire under both conditions. |
|
1369 |
// (keyfocus on scrollbars causes action without mousePress |
|
1370 |
boolean handledEvent; |
|
1371 |
||
1372 |
public void mousePressed(MouseEvent e) { |
|
1373 |
if(!scrollbar.isEnabled()) { return; } |
|
1374 |
// not an unmodified left mouse button |
|
1375 |
//if(e.getModifiers() != InputEvent.BUTTON1_MASK) {return; } |
|
1376 |
if( ! SwingUtilities.isLeftMouseButton(e)) { return; } |
|
1377 |
||
1378 |
int direction = (e.getSource() == incrButton) ? 1 : -1; |
|
1379 |
||
1380 |
scrollByUnit(direction); |
|
1381 |
scrollTimer.stop(); |
|
1382 |
scrollListener.setDirection(direction); |
|
1383 |
scrollListener.setScrollByBlock(false); |
|
1384 |
scrollTimer.start(); |
|
1385 |
||
1386 |
handledEvent = true; |
|
1387 |
if (!scrollbar.hasFocus() && scrollbar.isRequestFocusEnabled()) { |
|
1388 |
scrollbar.requestFocus(); |
|
1389 |
} |
|
1390 |
} |
|
1391 |
||
1392 |
public void mouseReleased(MouseEvent e) { |
|
1393 |
scrollTimer.stop(); |
|
1394 |
handledEvent = false; |
|
1395 |
scrollbar.setValueIsAdjusting(false); |
|
1396 |
} |
|
1397 |
} |
|
1398 |
||
1399 |
||
1400 |
/** |
|
1401 |
* Listener for scrolling events initiated in the |
|
1402 |
* <code>ScrollPane</code>. |
|
1403 |
*/ |
|
1404 |
protected class ScrollListener implements ActionListener |
|
1405 |
{ |
|
1406 |
int direction = +1; |
|
1407 |
boolean useBlockIncrement; |
|
1408 |
||
1409 |
public ScrollListener() { |
|
1410 |
direction = +1; |
|
1411 |
useBlockIncrement = false; |
|
1412 |
} |
|
1413 |
||
1414 |
public ScrollListener(int dir, boolean block) { |
|
1415 |
direction = dir; |
|
1416 |
useBlockIncrement = block; |
|
1417 |
} |
|
1418 |
||
1419 |
public void setDirection(int direction) { this.direction = direction; } |
|
1420 |
public void setScrollByBlock(boolean block) { this.useBlockIncrement = block; } |
|
1421 |
||
1422 |
public void actionPerformed(ActionEvent e) { |
|
1423 |
if(useBlockIncrement) { |
|
1424 |
scrollByBlock(direction); |
|
1425 |
// Stop scrolling if the thumb catches up with the mouse |
|
1426 |
if(scrollbar.getOrientation() == JScrollBar.VERTICAL) { |
|
1427 |
if(direction > 0) { |
|
1428 |
if(getThumbBounds().y + getThumbBounds().height |
|
1429 |
>= trackListener.currentMouseY) |
|
1430 |
((Timer)e.getSource()).stop(); |
|
1431 |
} else if(getThumbBounds().y <= trackListener.currentMouseY) { |
|
1432 |
((Timer)e.getSource()).stop(); |
|
1433 |
} |
|
1434 |
} else { |
|
1435 |
if ((direction > 0 && !isMouseAfterThumb()) |
|
1436 |
|| (direction < 0 && !isMouseBeforeThumb())) { |
|
1437 |
||
1438 |
((Timer)e.getSource()).stop(); |
|
1439 |
} |
|
1440 |
} |
|
1441 |
} else { |
|
1442 |
scrollByUnit(direction); |
|
1443 |
} |
|
1444 |
||
1445 |
if(direction > 0 |
|
1446 |
&& scrollbar.getValue()+scrollbar.getVisibleAmount() |
|
1447 |
>= scrollbar.getMaximum()) |
|
1448 |
((Timer)e.getSource()).stop(); |
|
1449 |
else if(direction < 0 |
|
1450 |
&& scrollbar.getValue() <= scrollbar.getMinimum()) |
|
1451 |
((Timer)e.getSource()).stop(); |
|
1452 |
} |
|
1453 |
} |
|
1454 |
||
1455 |
private boolean isMouseLeftOfThumb() { |
|
1456 |
return trackListener.currentMouseX < getThumbBounds().x; |
|
1457 |
} |
|
1458 |
||
1459 |
private boolean isMouseRightOfThumb() { |
|
1460 |
Rectangle tb = getThumbBounds(); |
|
1461 |
return trackListener.currentMouseX > tb.x + tb.width; |
|
1462 |
} |
|
1463 |
||
1464 |
private boolean isMouseBeforeThumb() { |
|
1465 |
return scrollbar.getComponentOrientation().isLeftToRight() |
|
1466 |
? isMouseLeftOfThumb() |
|
1467 |
: isMouseRightOfThumb(); |
|
1468 |
} |
|
1469 |
||
1470 |
private boolean isMouseAfterThumb() { |
|
1471 |
return scrollbar.getComponentOrientation().isLeftToRight() |
|
1472 |
? isMouseRightOfThumb() |
|
1473 |
: isMouseLeftOfThumb(); |
|
1474 |
} |
|
1475 |
||
1476 |
private void updateButtonDirections() { |
|
1477 |
int orient = scrollbar.getOrientation(); |
|
1478 |
if (scrollbar.getComponentOrientation().isLeftToRight()) { |
|
1479 |
if (incrButton instanceof BasicArrowButton) { |
|
1480 |
((BasicArrowButton)incrButton).setDirection( |
|
1481 |
orient == HORIZONTAL? EAST : SOUTH); |
|
1482 |
} |
|
1483 |
if (decrButton instanceof BasicArrowButton) { |
|
1484 |
((BasicArrowButton)decrButton).setDirection( |
|
1485 |
orient == HORIZONTAL? WEST : NORTH); |
|
1486 |
} |
|
1487 |
} |
|
1488 |
else { |
|
1489 |
if (incrButton instanceof BasicArrowButton) { |
|
1490 |
((BasicArrowButton)incrButton).setDirection( |
|
1491 |
orient == HORIZONTAL? WEST : SOUTH); |
|
1492 |
} |
|
1493 |
if (decrButton instanceof BasicArrowButton) { |
|
1494 |
((BasicArrowButton)decrButton).setDirection( |
|
1495 |
orient == HORIZONTAL ? EAST : NORTH); |
|
1496 |
} |
|
1497 |
} |
|
1498 |
} |
|
1499 |
||
1500 |
public class PropertyChangeHandler implements PropertyChangeListener |
|
1501 |
{ |
|
21278 | 1502 |
// NOTE: This class exists only for backward compatibility. All |
2 | 1503 |
// its functionality has been moved into Handler. If you need to add |
1504 |
// new functionality add it to the Handler, but make sure this |
|
1505 |
// class calls into the Handler. |
|
1506 |
||
1507 |
public void propertyChange(PropertyChangeEvent e) { |
|
1508 |
getHandler().propertyChange(e); |
|
1509 |
} |
|
1510 |
} |
|
1511 |
||
1512 |
||
1513 |
/** |
|
1514 |
* Used for scrolling the scrollbar. |
|
1515 |
*/ |
|
1516 |
private static class Actions extends UIAction { |
|
1517 |
private static final String POSITIVE_UNIT_INCREMENT = |
|
1518 |
"positiveUnitIncrement"; |
|
1519 |
private static final String POSITIVE_BLOCK_INCREMENT = |
|
1520 |
"positiveBlockIncrement"; |
|
1521 |
private static final String NEGATIVE_UNIT_INCREMENT = |
|
1522 |
"negativeUnitIncrement"; |
|
1523 |
private static final String NEGATIVE_BLOCK_INCREMENT = |
|
1524 |
"negativeBlockIncrement"; |
|
1525 |
private static final String MIN_SCROLL = "minScroll"; |
|
1526 |
private static final String MAX_SCROLL = "maxScroll"; |
|
1527 |
||
1528 |
Actions(String name) { |
|
1529 |
super(name); |
|
1530 |
} |
|
1531 |
||
1532 |
public void actionPerformed(ActionEvent e) { |
|
1533 |
JScrollBar scrollBar = (JScrollBar)e.getSource(); |
|
1534 |
String key = getName(); |
|
1535 |
if (key == POSITIVE_UNIT_INCREMENT) { |
|
1536 |
scroll(scrollBar, POSITIVE_SCROLL, false); |
|
1537 |
} |
|
1538 |
else if (key == POSITIVE_BLOCK_INCREMENT) { |
|
1539 |
scroll(scrollBar, POSITIVE_SCROLL, true); |
|
1540 |
} |
|
1541 |
else if (key == NEGATIVE_UNIT_INCREMENT) { |
|
1542 |
scroll(scrollBar, NEGATIVE_SCROLL, false); |
|
1543 |
} |
|
1544 |
else if (key == NEGATIVE_BLOCK_INCREMENT) { |
|
1545 |
scroll(scrollBar, NEGATIVE_SCROLL, true); |
|
1546 |
} |
|
1547 |
else if (key == MIN_SCROLL) { |
|
1548 |
scroll(scrollBar, BasicScrollBarUI.MIN_SCROLL, true); |
|
1549 |
} |
|
1550 |
else if (key == MAX_SCROLL) { |
|
1551 |
scroll(scrollBar, BasicScrollBarUI.MAX_SCROLL, true); |
|
1552 |
} |
|
1553 |
} |
|
1554 |
private void scroll(JScrollBar scrollBar, int dir, boolean block) { |
|
1555 |
||
1556 |
if (dir == NEGATIVE_SCROLL || dir == POSITIVE_SCROLL) { |
|
1557 |
int amount; |
|
1558 |
// Don't use the BasicScrollBarUI.scrollByXXX methods as we |
|
1559 |
// don't want to use an invokeLater to reset the trackHighlight |
|
1560 |
// via an invokeLater |
|
1561 |
if (block) { |
|
1562 |
if (dir == NEGATIVE_SCROLL) { |
|
1563 |
amount = -1 * scrollBar.getBlockIncrement(-1); |
|
1564 |
} |
|
1565 |
else { |
|
1566 |
amount = scrollBar.getBlockIncrement(1); |
|
1567 |
} |
|
1568 |
} |
|
1569 |
else { |
|
1570 |
if (dir == NEGATIVE_SCROLL) { |
|
1571 |
amount = -1 * scrollBar.getUnitIncrement(-1); |
|
1572 |
} |
|
1573 |
else { |
|
1574 |
amount = scrollBar.getUnitIncrement(1); |
|
1575 |
} |
|
1576 |
} |
|
1577 |
scrollBar.setValue(scrollBar.getValue() + amount); |
|
1578 |
} |
|
1579 |
else if (dir == BasicScrollBarUI.MIN_SCROLL) { |
|
1580 |
scrollBar.setValue(scrollBar.getMinimum()); |
|
1581 |
} |
|
1582 |
else if (dir == BasicScrollBarUI.MAX_SCROLL) { |
|
1583 |
scrollBar.setValue(scrollBar.getMaximum()); |
|
1584 |
} |
|
1585 |
} |
|
1586 |
} |
|
1587 |
||
1588 |
||
1589 |
// |
|
1590 |
// EventHandler |
|
1591 |
// |
|
1592 |
private class Handler implements FocusListener, PropertyChangeListener { |
|
1593 |
// |
|
1594 |
// FocusListener |
|
1595 |
// |
|
1596 |
public void focusGained(FocusEvent e) { |
|
1597 |
scrollbar.repaint(); |
|
1598 |
} |
|
1599 |
||
1600 |
public void focusLost(FocusEvent e) { |
|
1601 |
scrollbar.repaint(); |
|
1602 |
} |
|
1603 |
||
1604 |
||
1605 |
// |
|
1606 |
// PropertyChangeListener |
|
1607 |
// |
|
1608 |
public void propertyChange(PropertyChangeEvent e) { |
|
1609 |
String propertyName = e.getPropertyName(); |
|
1610 |
||
1611 |
if ("model" == propertyName) { |
|
1612 |
BoundedRangeModel oldModel = (BoundedRangeModel)e.getOldValue(); |
|
1613 |
BoundedRangeModel newModel = (BoundedRangeModel)e.getNewValue(); |
|
1614 |
oldModel.removeChangeListener(modelListener); |
|
1615 |
newModel.addChangeListener(modelListener); |
|
6652
482a7a13ef22
6542335: different behavior on knob of scroll bar between 1.4.2 and 5.0
alexp
parents:
5506
diff
changeset
|
1616 |
scrollBarValue = scrollbar.getValue(); |
2 | 1617 |
scrollbar.repaint(); |
1618 |
scrollbar.revalidate(); |
|
1619 |
} else if ("orientation" == propertyName) { |
|
1620 |
updateButtonDirections(); |
|
1621 |
} else if ("componentOrientation" == propertyName) { |
|
1622 |
updateButtonDirections(); |
|
1623 |
InputMap inputMap = getInputMap(JComponent.WHEN_FOCUSED); |
|
1624 |
SwingUtilities.replaceUIInputMap(scrollbar, JComponent.WHEN_FOCUSED, inputMap); |
|
1625 |
} |
|
1626 |
} |
|
1627 |
} |
|
1628 |
} |