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1
7
8 package javax.swing.plaf.metal;
9
10 import java.awt.Component  ;
11 import java.awt.Container ;
12 import java.awt.LayoutManager ;
13 import java.awt.Adjustable ;
14 import java.awt.event.AdjustmentListener ;
15 import java.awt.event.AdjustmentEvent ;
16 import java.awt.event.ActionListener ;
17 import java.awt.event.ActionEvent ;
18 import java.awt.event.MouseListener ;
19 import java.awt.event.MouseMotionListener ;
20 import java.awt.event.MouseAdapter ;
21 import java.awt.event.MouseEvent ;
22 import java.awt.Graphics ;
23 import java.awt.Dimension ;
24 import java.awt.Rectangle ;
25 import java.awt.Point ;
26 import java.awt.Insets ;
27 import java.awt.Color ;
28 import java.awt.IllegalComponentStateException ;
29
30 import java.beans.*;
31
32 import javax.swing.*;
33 import javax.swing.event.*;
34
35 import javax.swing.plaf.*;
36 import javax.swing.plaf.basic.BasicScrollBarUI ;
37
38
39
47 public class MetalScrollBarUI extends BasicScrollBarUI
48 {
49 private static Color shadowColor;
50 private static Color highlightColor;
51 private static Color darkShadowColor;
52 private static Color thumbColor;
53 private static Color thumbShadow;
54 private static Color thumbHighlightColor;
55
56
57 protected MetalBumps bumps;
58
59 protected MetalScrollButton increaseButton;
60 protected MetalScrollButton decreaseButton;
61
62 protected int scrollBarWidth;
63
64 public static final String FREE_STANDING_PROP = "JScrollBar.isFreeStanding";
65 protected boolean isFreeStanding = true;
66
67 public static ComponentUI createUI( JComponent c )
68 {
69 return new MetalScrollBarUI ();
70 }
71
72 protected void installDefaults() {
73 scrollBarWidth = ((Integer )(UIManager.get( "ScrollBar.width" ))).intValue();
74 super.installDefaults();
75 bumps = new MetalBumps ( 10, 10, thumbHighlightColor, thumbShadow, thumbColor );
76 }
77
78 protected void installListeners(){
79 super.installListeners();
80 ((ScrollBarListener)propertyChangeListener).handlePropertyChange( scrollbar.getClientProperty( FREE_STANDING_PROP ) );
81 }
82
83 protected PropertyChangeListener createPropertyChangeListener(){
84 return new ScrollBarListener();
85 }
86
87 protected void configureScrollBarColors()
88 {
89 super.configureScrollBarColors();
90 shadowColor = UIManager.getColor("ScrollBar.shadow");
91 highlightColor = UIManager.getColor("ScrollBar.highlight");
92 darkShadowColor = UIManager.getColor("ScrollBar.darkShadow");
93 thumbColor = UIManager.getColor("ScrollBar.thumb");
94 thumbShadow = UIManager.getColor("ScrollBar.thumbShadow");
95 thumbHighlightColor = UIManager.getColor("ScrollBar.thumbHighlight");
96
97
98 }
99
100 public Dimension getPreferredSize( JComponent c )
101 {
102 if ( scrollbar.getOrientation() == JScrollBar.VERTICAL )
103 {
104 return new Dimension ( scrollBarWidth, scrollBarWidth * 3 + 10 );
105 }
106 else {
108 return new Dimension ( scrollBarWidth * 3 + 10, scrollBarWidth );
109 }
110
111 }
112
113
115 protected JButton createDecreaseButton( int orientation )
116 {
117 decreaseButton = new MetalScrollButton ( orientation, scrollBarWidth, isFreeStanding );
118 return decreaseButton;
119 }
120
121
122 protected JButton createIncreaseButton( int orientation )
123 {
124 increaseButton = new MetalScrollButton ( orientation, scrollBarWidth, isFreeStanding );
125 return increaseButton;
126 }
127
128 protected void paintTrack( Graphics g, JComponent c, Rectangle trackBounds )
129 {
130 g.translate( trackBounds.x, trackBounds.y );
131
132 boolean leftToRight = MetalUtils.isLeftToRight(c);
133
134 if ( scrollbar.getOrientation() == JScrollBar.VERTICAL )
135 {
136 if ( !isFreeStanding ) {
137 trackBounds.width += 2;
138 if ( !leftToRight ) {
139 g.translate( -1, 0 );
140 }
141 }
142
143 if ( c.isEnabled() ) {
144 g.setColor( darkShadowColor );
145 g.drawLine( 0, 0, 0, trackBounds.height - 1 );
146 g.drawLine( trackBounds.width - 2, 0, trackBounds.width - 2, trackBounds.height - 1 );
147 g.drawLine( 2, trackBounds.height - 1, trackBounds.width - 1, trackBounds.height - 1);
148 g.drawLine( 2, 0, trackBounds.width - 2, 0 );
149
150 g.setColor( shadowColor );
151 g.drawLine( 1, 1, 1, trackBounds.height - 2 );
153 g.drawLine( 1, 1, trackBounds.width - 3, 1 );
154 if (scrollbar.getValue() != scrollbar.getMaximum()) { int y = thumbRect.y + thumbRect.height - trackBounds.y;
156 g.drawLine( 1, y, trackBounds.width-1, y);
157 }
158 g.setColor(highlightColor);
159 g.drawLine( trackBounds.width - 1, 0, trackBounds.width - 1, trackBounds.height - 1 );
160 } else {
161 MetalUtils.drawDisabledBorder(g, 0, 0, trackBounds.width, trackBounds.height );
162 }
163
164 if ( !isFreeStanding ) {
165 trackBounds.width -= 2;
166 if ( !leftToRight ) {
167 g.translate( 1, 0 );
168 }
169 }
170 }
171 else {
173 if ( !isFreeStanding ) {
174 trackBounds.height += 2;
175 }
176
177 if ( c.isEnabled() ) {
178 g.setColor( darkShadowColor );
179 g.drawLine( 0, 0, trackBounds.width - 1, 0 ); g.drawLine( 0, 2, 0, trackBounds.height - 2 ); g.drawLine( 0, trackBounds.height - 2, trackBounds.width - 1, trackBounds.height - 2 ); g.drawLine( trackBounds.width - 1, 2, trackBounds.width - 1, trackBounds.height - 1 );
184 g.setColor( shadowColor );
185 g.drawLine( 1, 1, trackBounds.width - 2, 1 ); g.drawLine( 1, 1, 1, trackBounds.height - 3 ); g.drawLine( 0, trackBounds.height - 1, trackBounds.width - 1, trackBounds.height - 1 ); if (scrollbar.getValue() != scrollbar.getMaximum()) { int x = thumbRect.x + thumbRect.width - trackBounds.x;
191 g.drawLine( x, 1, x, trackBounds.height-1);
192 }
193 } else {
194 MetalUtils.drawDisabledBorder(g, 0, 0, trackBounds.width, trackBounds.height );
195 }
196
197 if ( !isFreeStanding ) {
198 trackBounds.height -= 2;
199 }
200 }
201
202 g.translate( -trackBounds.x, -trackBounds.y );
203 }
204
205 protected void paintThumb( Graphics g, JComponent c, Rectangle thumbBounds )
206 {
207 if (!c.isEnabled()) {
208 return;
209 }
210
211 if (MetalLookAndFeel.usingOcean()) {
212 oceanPaintThumb(g, c, thumbBounds);
213 return;
214 }
215
216 boolean leftToRight = MetalUtils.isLeftToRight(c);
217
218 g.translate( thumbBounds.x, thumbBounds.y );
219
220 if ( scrollbar.getOrientation() == JScrollBar.VERTICAL )
221 {
222 if ( !isFreeStanding ) {
223 thumbBounds.width += 2;
224 if ( !leftToRight ) {
225 g.translate( -1, 0 );
226 }
227 }
228
229 g.setColor( thumbColor );
230 g.fillRect( 0, 0, thumbBounds.width - 2, thumbBounds.height - 1 );
231
232 g.setColor( thumbShadow );
233 g.drawRect( 0, 0, thumbBounds.width - 2, thumbBounds.height - 1 );
234
235 g.setColor( thumbHighlightColor );
236 g.drawLine( 1, 1, thumbBounds.width - 3, 1 );
237 g.drawLine( 1, 1, 1, thumbBounds.height - 2 );
238
239 bumps.setBumpArea( thumbBounds.width - 6, thumbBounds.height - 7 );
240 bumps.paintIcon( c, g, 3, 4 );
241
242 if ( !isFreeStanding ) {
243 thumbBounds.width -= 2;
244 if ( !leftToRight ) {
245 g.translate( 1, 0 );
246 }
247 }
248 }
249 else {
251 if ( !isFreeStanding ) {
252 thumbBounds.height += 2;
253 }
254
255 g.setColor( thumbColor );
256 g.fillRect( 0, 0, thumbBounds.width - 1, thumbBounds.height - 2 );
257
258 g.setColor( thumbShadow );
259 g.drawRect( 0, 0, thumbBounds.width - 1, thumbBounds.height - 2 );
260
261 g.setColor( thumbHighlightColor );
262 g.drawLine( 1, 1, thumbBounds.width - 3, 1 );
263 g.drawLine( 1, 1, 1, thumbBounds.height - 3 );
264
265 bumps.setBumpArea( thumbBounds.width - 7, thumbBounds.height - 6 );
266 bumps.paintIcon( c, g, 4, 3 );
267
268 if ( !isFreeStanding ) {
269 thumbBounds.height -= 2;
270 }
271 }
272
273 g.translate( -thumbBounds.x, -thumbBounds.y );
274 }
275
276 private void oceanPaintThumb(Graphics g, JComponent c,
277 Rectangle thumbBounds) {
278 boolean leftToRight = MetalUtils.isLeftToRight(c);
279
280 g.translate(thumbBounds.x, thumbBounds.y);
281
282 if (scrollbar.getOrientation() == JScrollBar.VERTICAL) {
283 if (!isFreeStanding) {
284 thumbBounds.width += 2;
285 if (!leftToRight) {
286 g.translate(-1, 0);
287 }
288 }
289
290 if (thumbColor != null) {
291 g.setColor(thumbColor);
292 g.fillRect(0, 0, thumbBounds.width - 2,thumbBounds.height - 1);
293 }
294
295 g.setColor(thumbShadow);
296 g.drawRect(0, 0, thumbBounds.width - 2, thumbBounds.height - 1);
297
298 g.setColor(thumbHighlightColor);
299 g.drawLine(1, 1, thumbBounds.width - 3, 1);
300 g.drawLine(1, 1, 1, thumbBounds.height - 2);
301
302 MetalUtils.drawGradient(c, g, "ScrollBar.gradient", 2, 2,
303 thumbBounds.width - 4,
304 thumbBounds.height - 3, false);
305
306 int gripSize = thumbBounds.width - 8;
307 if (gripSize > 2 && thumbBounds.height >= 10) {
308 g.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
309 int gripY = thumbBounds.height / 2 - 2;
310 for (int counter = 0; counter < 6; counter += 2) {
311 g.fillRect(4, counter + gripY, gripSize, 1);
312 }
313
314 g.setColor(MetalLookAndFeel.getWhite());
315 gripY++;
316 for (int counter = 0; counter < 6; counter += 2) {
317 g.fillRect(5, counter + gripY, gripSize, 1);
318 }
319 }
320 if (!isFreeStanding) {
321 thumbBounds.width -= 2;
322 if (!leftToRight) {
323 g.translate(1, 0);
324 }
325 }
326 }
327 else { if (!isFreeStanding) {
329 thumbBounds.height += 2;
330 }
331
332 if (thumbColor != null) {
333 g.setColor(thumbColor);
334 g.fillRect(0, 0, thumbBounds.width - 1,thumbBounds.height - 2);
335 }
336
337 g.setColor(thumbShadow);
338 g.drawRect(0, 0, thumbBounds.width - 1, thumbBounds.height - 2);
339
340 g.setColor(thumbHighlightColor);
341 g.drawLine(1, 1, thumbBounds.width - 2, 1);
342 g.drawLine(1, 1, 1, thumbBounds.height - 3);
343
344 MetalUtils.drawGradient(c, g, "ScrollBar.gradient", 2, 2,
345 thumbBounds.width - 3,
346 thumbBounds.height - 4, true);
347
348 int gripSize = thumbBounds.height - 8;
349 if (gripSize > 2 && thumbBounds.width >= 10) {
350 g.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());
351 int gripX = thumbBounds.width / 2 - 2;
352 for (int counter = 0; counter < 6; counter += 2) {
353 g.fillRect(gripX + counter, 4, 1, gripSize);
354 }
355
356 g.setColor(MetalLookAndFeel.getWhite());
357 gripX++;
358 for (int counter = 0; counter < 6; counter += 2) {
359 g.fillRect(gripX + counter, 5, 1, gripSize);
360 }
361 }
362
363 if (!isFreeStanding) {
364 thumbBounds.height -= 2;
365 }
366 }
367
368 g.translate( -thumbBounds.x, -thumbBounds.y );
369 }
370
371 protected Dimension getMinimumThumbSize()
372 {
373 return new Dimension ( scrollBarWidth, scrollBarWidth );
374 }
375
376
380 protected void setThumbBounds(int x, int y, int width, int height)
381 {
382
384 if ((thumbRect.x == x) &&
385 (thumbRect.y == y) &&
386 (thumbRect.width == width) &&
387 (thumbRect.height == height)) {
388 return;
389 }
390
391
394 int minX = Math.min(x, thumbRect.x);
395 int minY = Math.min(y, thumbRect.y);
396 int maxX = Math.max(x + width, thumbRect.x + thumbRect.width);
397 int maxY = Math.max(y + height, thumbRect.y + thumbRect.height);
398
399 thumbRect.setBounds(x, y, width, height);
400 scrollbar.repaint(minX, minY, (maxX - minX)+1, (maxY - minY)+1);
401 }
402
403
404
405 class ScrollBarListener extends BasicScrollBarUI.PropertyChangeHandler
406 {
407 public void propertyChange(PropertyChangeEvent e)
408 {
409 String name = e.getPropertyName();
410 if ( name.equals( FREE_STANDING_PROP ) )
411 {
412 handlePropertyChange( e.getNewValue() );
413 }
414 else {
415 super.propertyChange( e );
416 }
417 }
418
419 public void handlePropertyChange( Object newValue )
420 {
421 if ( newValue != null )
422 {
423 boolean temp = ((Boolean )newValue).booleanValue();
424 boolean becameFlush = temp == false && isFreeStanding == true;
425 boolean becameNormal = temp == true && isFreeStanding == false;
426
427 isFreeStanding = temp;
428
429 if ( becameFlush ) {
430 toFlush();
431 }
432 else if ( becameNormal ) {
433 toFreeStanding();
434 }
435 }
436 else
437 {
438
439 if ( !isFreeStanding ) {
440 isFreeStanding = true;
441 toFreeStanding();
442 }
443
444
451 }
452
453 if ( increaseButton != null )
454 {
455 increaseButton.setFreeStanding( isFreeStanding );
456 }
457 if ( decreaseButton != null )
458 {
459 decreaseButton.setFreeStanding( isFreeStanding );
460 }
461 }
462
463 protected void toFlush() {
464 scrollBarWidth -= 2;
465 }
466
467 protected void toFreeStanding() {
468 scrollBarWidth += 2;
469 }
470 } }
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