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 package javax.swing.plaf.synth;
26
27 import java.awt.Color;
28 import java.awt.Component;
29 import java.awt.Graphics;
30 import java.awt.Insets;
31 import java.awt.Rectangle;
32 import java.beans.PropertyChangeEvent;
33 import java.beans.PropertyChangeListener;
34 import java.util.Enumeration;
35 import javax.swing.DefaultCellEditor;
36 import javax.swing.Icon;
37 import javax.swing.JComponent;
38 import javax.swing.JTextField;
39 import javax.swing.JTree;
40 import javax.swing.LookAndFeel;
41 import javax.swing.plaf.ComponentUI;
42 import javax.swing.plaf.UIResource;
43 import javax.swing.plaf.basic.BasicTreeUI;
44 import javax.swing.tree.DefaultTreeCellEditor;
45 import javax.swing.tree.DefaultTreeCellRenderer;
46 import javax.swing.tree.TreeCellEditor;
47 import javax.swing.tree.TreeCellRenderer;
48 import javax.swing.tree.TreeModel;
49 import javax.swing.tree.TreePath;
50 import sun.swing.plaf.synth.SynthIcon;
51
52 /**
53 * Provides the Synth L&F UI delegate for
54 * {@link javax.swing.JTree}.
55 *
56 * @author Scott Violet
57 * @since 1.7
58 */
59 public class SynthTreeUI extends BasicTreeUI
60 implements PropertyChangeListener, SynthUI {
61 private SynthStyle style;
62 private SynthStyle cellStyle;
63
64 private SynthContext paintContext;
65
66 private boolean drawHorizontalLines;
67 private boolean drawVerticalLines;
68
69 private Object linesStyle;
70
71 private int padding;
72
73 private boolean useTreeColors;
74
75 private Icon expandedIconWrapper = new ExpandedIconWrapper();
76
77 /**
78 * Creates a new UI object for the given component.
79 *
80 * @param x component to create UI object for
81 * @return the UI object
82 */
83 public static ComponentUI createUI(JComponent x) {
84 return new SynthTreeUI();
85 }
86
87 /**
88 * {@inheritDoc}
89 */
90 @Override
91 public Icon getExpandedIcon() {
92 return expandedIconWrapper;
93 }
94
95 /**
96 * {@inheritDoc}
97 */
98 @Override
99 protected void installDefaults() {
100 updateStyle(tree);
101 }
102
103 private void updateStyle(JTree tree) {
104 SynthContext context = getContext(tree, ENABLED);
105 SynthStyle oldStyle = style;
106
107 style = SynthLookAndFeel.updateStyle(context, this);
108 if (style != oldStyle) {
109 Object value;
110
111 setExpandedIcon(style.getIcon(context, "Tree.expandedIcon"));
112 setCollapsedIcon(style.getIcon(context, "Tree.collapsedIcon"));
113
114 setLeftChildIndent(style.getInt(context, "Tree.leftChildIndent",
115 0));
116 setRightChildIndent(style.getInt(context, "Tree.rightChildIndent",
117 0));
118
119 drawHorizontalLines = style.getBoolean(
120 context, "Tree.drawHorizontalLines",true);
121 drawVerticalLines = style.getBoolean(
122 context, "Tree.drawVerticalLines", true);
123 linesStyle = style.get(context, "Tree.linesStyle");
124
125 value = style.get(context, "Tree.rowHeight");
126 if (value != null) {
127 LookAndFeel.installProperty(tree, "rowHeight", value);
128 }
129
130 value = style.get(context, "Tree.scrollsOnExpand");
131 LookAndFeel.installProperty(tree, "scrollsOnExpand",
132 value != null? value : Boolean.TRUE);
133
134 padding = style.getInt(context, "Tree.padding", 0);
135
136 largeModel = (tree.isLargeModel() && tree.getRowHeight() > 0);
137
138 useTreeColors = style.getBoolean(context,
139 "Tree.rendererUseTreeColors", true);
140
141 Boolean showsRootHandles = style.getBoolean(
142 context, "Tree.showsRootHandles", Boolean.TRUE);
143 LookAndFeel.installProperty(
144 tree, JTree.SHOWS_ROOT_HANDLES_PROPERTY, showsRootHandles);
145
146 if (oldStyle != null) {
147 uninstallKeyboardActions();
148 installKeyboardActions();
149 }
150 }
151 context.dispose();
152
153 context = getContext(tree, Region.TREE_CELL, ENABLED);
154 cellStyle = SynthLookAndFeel.updateStyle(context, this);
155 context.dispose();
156 }
157
158 /**
159 * {@inheritDoc}
160 */
161 @Override
162 protected void installListeners() {
163 super.installListeners();
164 tree.addPropertyChangeListener(this);
165 }
166
167 /**
168 * {@inheritDoc}
169 */
170 @Override
171 public SynthContext getContext(JComponent c) {
172 return getContext(c, SynthLookAndFeel.getComponentState(c));
173 }
174
175 private SynthContext getContext(JComponent c, int state) {
176 return SynthContext.getContext(c, style, state);
177 }
178
179 private SynthContext getContext(JComponent c, Region region) {
180 return getContext(c, region, getComponentState(c, region));
181 }
182
183 private SynthContext getContext(JComponent c, Region region, int state) {
184 return SynthContext.getContext(c, region, cellStyle, state);
185 }
186
187 private int getComponentState(JComponent c, Region region) {
188 // Always treat the cell as selected, will be adjusted appropriately
189 // when painted.
190 return ENABLED | SELECTED;
191 }
192
193 /**
194 * {@inheritDoc}
195 */
196 @Override
197 protected TreeCellEditor createDefaultCellEditor() {
198 TreeCellRenderer renderer = tree.getCellRenderer();
199 DefaultTreeCellEditor editor;
200
201 if(renderer != null && (renderer instanceof DefaultTreeCellRenderer)) {
202 editor = new SynthTreeCellEditor(tree, (DefaultTreeCellRenderer)
203 renderer);
204 }
205 else {
206 editor = new SynthTreeCellEditor(tree, null);
207 }
208 return editor;
209 }
210
211 /**
212 * {@inheritDoc}
213 */
214 @Override
215 protected TreeCellRenderer createDefaultCellRenderer() {
216 return new SynthTreeCellRenderer();
217 }
218
219 /**
220 * {@inheritDoc}
221 */
222 @Override
223 protected void uninstallDefaults() {
224 SynthContext context = getContext(tree, ENABLED);
225
226 style.uninstallDefaults(context);
227 context.dispose();
228 style = null;
229
230 context = getContext(tree, Region.TREE_CELL, ENABLED);
231 cellStyle.uninstallDefaults(context);
232 context.dispose();
233 cellStyle = null;
234
235
236 if (tree.getTransferHandler() instanceof UIResource) {
237 tree.setTransferHandler(null);
238 }
239 }
240
241 /**
242 * {@inheritDoc}
243 */
244 @Override
245 protected void uninstallListeners() {
246 super.uninstallListeners();
247 tree.removePropertyChangeListener(this);
248 }
249
250 /**
251 * Notifies this UI delegate to repaint the specified component.
252 * This method paints the component background, then calls
253 * the {@link #paint(SynthContext,Graphics)} method.
254 *
255 * <p>In general, this method does not need to be overridden by subclasses.
256 * All Look and Feel rendering code should reside in the {@code paint} method.
257 *
258 * @param g the {@code Graphics} object used for painting
259 * @param c the component being painted
260 * @see #paint(SynthContext,Graphics)
261 */
262 @Override
263 public void update(Graphics g, JComponent c) {
264 SynthContext context = getContext(c);
265
266 SynthLookAndFeel.update(context, g);
267 context.getPainter().paintTreeBackground(context,
268 g, 0, 0, c.getWidth(), c.getHeight());
269 paint(context, g);
270 context.dispose();
271 }
272
273 /**
274 * {@inheritDoc}
275 */
276 @Override
277 public void paintBorder(SynthContext context, Graphics g, int x,
278 int y, int w, int h) {
279 context.getPainter().paintTreeBorder(context, g, x, y, w, h);
280 }
281
282 /**
283 * Paints the specified component according to the Look and Feel.
284 * <p>This method is not used by Synth Look and Feel.
285 * Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
286 *
287 * @param g the {@code Graphics} object used for painting
288 * @param c the component being painted
289 * @see #paint(SynthContext,Graphics)
290 */
291 @Override
292 public void paint(Graphics g, JComponent c) {
293 SynthContext context = getContext(c);
294
295 paint(context, g);
296 context.dispose();
297 }
298
299 /**
300 * Paints the specified component.
301 *
302 * @param context context for the component being painted
303 * @param g the {@code Graphics} object used for painting
304 * @see #update(Graphics,JComponent)
305 */
306 protected void paint(SynthContext context, Graphics g) {
307 paintContext = context;
308
309 updateLeadSelectionRow();
310
311 Rectangle paintBounds = g.getClipBounds();
312 Insets insets = tree.getInsets();
313 TreePath initialPath = getClosestPathForLocation(tree, 0,
314 paintBounds.y);
315 Enumeration paintingEnumerator = treeState.getVisiblePathsFrom
316 (initialPath);
317 int row = treeState.getRowForPath(initialPath);
318 int endY = paintBounds.y + paintBounds.height;
319 TreeModel treeModel = tree.getModel();
320 SynthContext cellContext = getContext(tree, Region.TREE_CELL);
321
322 drawingCache.clear();
323
324 setHashColor(context.getStyle().getColor(context,
325 ColorType.FOREGROUND));
326
327 if (paintingEnumerator != null) {
328 // First pass, draw the rows
329
330 boolean done = false;
331 boolean isExpanded;
332 boolean hasBeenExpanded;
333 boolean isLeaf;
334 Rectangle rowBounds = new Rectangle(0, 0, tree.getWidth(),0);
335 Rectangle bounds;
336 TreePath path;
337 TreeCellRenderer renderer = tree.getCellRenderer();
338 DefaultTreeCellRenderer dtcr = (renderer instanceof
339 DefaultTreeCellRenderer) ? (DefaultTreeCellRenderer)
340 renderer : null;
341
342 configureRenderer(cellContext);
343 while (!done && paintingEnumerator.hasMoreElements()) {
344 path = (TreePath)paintingEnumerator.nextElement();
345 bounds = getPathBounds(tree, path);
346 if ((path != null) && (bounds != null)) {
347 isLeaf = treeModel.isLeaf(path.getLastPathComponent());
348 if (isLeaf) {
349 isExpanded = hasBeenExpanded = false;
350 }
351 else {
352 isExpanded = treeState.getExpandedState(path);
353 hasBeenExpanded = tree.hasBeenExpanded(path);
354 }
355 rowBounds.y = bounds.y;
356 rowBounds.height = bounds.height;
357 paintRow(renderer, dtcr, context, cellContext, g,
358 paintBounds, insets, bounds, rowBounds, path,
359 row, isExpanded, hasBeenExpanded, isLeaf);
360 if ((bounds.y + bounds.height) >= endY) {
361 done = true;
362 }
363 }
364 else {
365 done = true;
366 }
367 row++;
368 }
369
370 // Draw the connecting lines and controls.
371 // Find each parent and have them draw a line to their last child
372 boolean rootVisible = tree.isRootVisible();
373 TreePath parentPath = initialPath;
374 parentPath = parentPath.getParentPath();
375 while (parentPath != null) {
376 paintVerticalPartOfLeg(g, paintBounds, insets, parentPath);
377 drawingCache.put(parentPath, Boolean.TRUE);
378 parentPath = parentPath.getParentPath();
379 }
380 done = false;
381 paintingEnumerator = treeState.getVisiblePathsFrom(initialPath);
382 while (!done && paintingEnumerator.hasMoreElements()) {
383 path = (TreePath)paintingEnumerator.nextElement();
384 bounds = getPathBounds(tree, path);
385 if ((path != null) && (bounds != null)) {
386 isLeaf = treeModel.isLeaf(path.getLastPathComponent());
387 if (isLeaf) {
388 isExpanded = hasBeenExpanded = false;
389 }
390 else {
391 isExpanded = treeState.getExpandedState(path);
392 hasBeenExpanded = tree.hasBeenExpanded(path);
393 }
394 // See if the vertical line to the parent has been drawn.
395 parentPath = path.getParentPath();
396 if (parentPath != null) {
397 if (drawingCache.get(parentPath) == null) {
398 paintVerticalPartOfLeg(g, paintBounds, insets,
399 parentPath);
400 drawingCache.put(parentPath, Boolean.TRUE);
401 }
402 paintHorizontalPartOfLeg(g,
403 paintBounds, insets, bounds,
404 path, row, isExpanded,
405 hasBeenExpanded, isLeaf);
406 }
407 else if (rootVisible && row == 0) {
408 paintHorizontalPartOfLeg(g,
409 paintBounds, insets, bounds,
410 path, row, isExpanded,
411 hasBeenExpanded, isLeaf);
412 }
413 if (shouldPaintExpandControl(path, row, isExpanded,
414 hasBeenExpanded, isLeaf)) {
415 paintExpandControl(g, paintBounds,
416 insets, bounds, path, row,
417 isExpanded, hasBeenExpanded,isLeaf);
418 }
419 if ((bounds.y + bounds.height) >= endY) {
420 done = true;
421 }
422 }
423 else {
424 done = true;
425 }
426 row++;
427 }
428 }
429 cellContext.dispose();
430
431 paintDropLine(g);
432
433 // Empty out the renderer pane, allowing renderers to be gc'ed.
434 rendererPane.removeAll();
435
436 paintContext = null;
437 }
438
439 private void configureRenderer(SynthContext context) {
440 TreeCellRenderer renderer = tree.getCellRenderer();
441
442 if (renderer instanceof DefaultTreeCellRenderer) {
443 DefaultTreeCellRenderer r = (DefaultTreeCellRenderer)renderer;
444 SynthStyle style = context.getStyle();
445
446 context.setComponentState(ENABLED | SELECTED);
447 Color color = r.getTextSelectionColor();
448 if (color == null || (color instanceof UIResource)) {
449 r.setTextSelectionColor(style.getColor(
450 context, ColorType.TEXT_FOREGROUND));
451 }
452 color = r.getBackgroundSelectionColor();
453 if (color == null || (color instanceof UIResource)) {
454 r.setBackgroundSelectionColor(style.getColor(
455 context, ColorType.TEXT_BACKGROUND));
456 }
457
458 context.setComponentState(ENABLED);
459 color = r.getTextNonSelectionColor();
460 if (color == null || color instanceof UIResource) {
461 r.setTextNonSelectionColor(style.getColorForState(
462 context, ColorType.TEXT_FOREGROUND));
463 }
464 color = r.getBackgroundNonSelectionColor();
465 if (color == null || color instanceof UIResource) {
466 r.setBackgroundNonSelectionColor(style.getColorForState(
467 context, ColorType.TEXT_BACKGROUND));
468 }
469 }
470 }
471
472 /**
473 * {@inheritDoc}
474 */
475 @Override
476 protected void paintHorizontalPartOfLeg(Graphics g, Rectangle clipBounds,
477 Insets insets, Rectangle bounds,
478 TreePath path, int row,
479 boolean isExpanded,
480 boolean hasBeenExpanded, boolean
481 isLeaf) {
482 if (drawHorizontalLines) {
483 super.paintHorizontalPartOfLeg(g, clipBounds, insets, bounds,
484 path, row, isExpanded,
485 hasBeenExpanded, isLeaf);
486 }
487 }
488
489 /**
490 * {@inheritDoc}
491 */
492 @Override
493 protected void paintHorizontalLine(Graphics g, JComponent c, int y,
494 int left, int right) {
495 paintContext.getStyle().getGraphicsUtils(paintContext).drawLine(
496 paintContext, "Tree.horizontalLine", g, left, y, right, y, linesStyle);
497 }
498
499 /**
500 * {@inheritDoc}
501 */
502 @Override
503 protected void paintVerticalPartOfLeg(Graphics g,
504 Rectangle clipBounds, Insets insets,
505 TreePath path) {
506 if (drawVerticalLines) {
507 super.paintVerticalPartOfLeg(g, clipBounds, insets, path);
508 }
509 }
510
511 /**
512 * {@inheritDoc}
513 */
514 @Override
515 protected void paintVerticalLine(Graphics g, JComponent c, int x, int top,
516 int bottom) {
517 paintContext.getStyle().getGraphicsUtils(paintContext).drawLine(
518 paintContext, "Tree.verticalLine", g, x, top, x, bottom, linesStyle);
519 }
520
521 private void paintRow(TreeCellRenderer renderer,
522 DefaultTreeCellRenderer dtcr, SynthContext treeContext,
523 SynthContext cellContext, Graphics g, Rectangle clipBounds,
524 Insets insets, Rectangle bounds, Rectangle rowBounds,
525 TreePath path, int row, boolean isExpanded,
526 boolean hasBeenExpanded, boolean isLeaf) {
527 // Don't paint the renderer if editing this row.
528 boolean selected = tree.isRowSelected(row);
529
530 JTree.DropLocation dropLocation = tree.getDropLocation();
531 boolean isDrop = dropLocation != null
532 && dropLocation.getChildIndex() == -1
533 && path == dropLocation.getPath();
534
535 int state = ENABLED;
536 if (selected || isDrop) {
537 state |= SELECTED;
538 }
539
540 if (tree.isFocusOwner() && row == getLeadSelectionRow()) {
541 state |= FOCUSED;
542 }
543
544 cellContext.setComponentState(state);
545
546 if (dtcr != null && (dtcr.getBorderSelectionColor() instanceof
547 UIResource)) {
548 dtcr.setBorderSelectionColor(style.getColor(
549 cellContext, ColorType.FOCUS));
550 }
551 SynthLookAndFeel.updateSubregion(cellContext, g, rowBounds);
552 cellContext.getPainter().paintTreeCellBackground(cellContext, g,
553 rowBounds.x, rowBounds.y, rowBounds.width,
554 rowBounds.height);
555 cellContext.getPainter().paintTreeCellBorder(cellContext, g,
556 rowBounds.x, rowBounds.y, rowBounds.width,
557 rowBounds.height);
558 if (editingComponent != null && editingRow == row) {
559 return;
560 }
561
562 int leadIndex;
563
564 if (tree.hasFocus()) {
565 leadIndex = getLeadSelectionRow();
566 }
567 else {
568 leadIndex = -1;
569 }
570
571 Component component = renderer.getTreeCellRendererComponent(
572 tree, path.getLastPathComponent(),
573 selected, isExpanded, isLeaf, row,
574 (leadIndex == row));
575
576 rendererPane.paintComponent(g, component, tree, bounds.x, bounds.y,
577 bounds.width, bounds.height, true);
578 }
579
580 private int findCenteredX(int x, int iconWidth) {
581 return tree.getComponentOrientation().isLeftToRight()
582 ? x - (int)Math.ceil(iconWidth / 2.0)
583 : x - (int)Math.floor(iconWidth / 2.0);
584 }
585
586 /**
587 * {@inheritDoc}
588 */
589 @Override
590 protected void paintExpandControl(Graphics g, Rectangle clipBounds,
591 Insets insets, Rectangle bounds, TreePath path, int row,
592 boolean isExpanded, boolean hasBeenExpanded, boolean isLeaf) {
593 //modify the paintContext's state to match the state for the row
594 //this is a hack in that it requires knowledge of the subsequent
595 //method calls. The point is, the context used in drawCentered
596 //should reflect the state of the row, not of the tree.
597 boolean isSelected = tree.getSelectionModel().isPathSelected(path);
598 int state = paintContext.getComponentState();
599 if (isSelected) {
600 paintContext.setComponentState(state | SynthConstants.SELECTED);
601 }
602 super.paintExpandControl(g, clipBounds, insets, bounds, path, row,
603 isExpanded, hasBeenExpanded, isLeaf);
604 paintContext.setComponentState(state);
605 }
606
607 /**
608 * {@inheritDoc}
609 */
610 @Override
611 protected void drawCentered(Component c, Graphics graphics, Icon icon,
612 int x, int y) {
613 int w = SynthIcon.getIconWidth(icon, paintContext);
614 int h = SynthIcon.getIconHeight(icon, paintContext);
615
616 SynthIcon.paintIcon(icon, paintContext, graphics,
617 findCenteredX(x, w),
618 y - h/2, w, h);
619 }
620
621 /**
622 * {@inheritDoc}
623 */
624 @Override
625 public void propertyChange(PropertyChangeEvent event) {
626 if (SynthLookAndFeel.shouldUpdateStyle(event)) {
627 updateStyle((JTree)event.getSource());
628 }
629
630 if ("dropLocation" == event.getPropertyName()) {
631 JTree.DropLocation oldValue = (JTree.DropLocation)event.getOldValue();
632 repaintDropLocation(oldValue);
633 repaintDropLocation(tree.getDropLocation());
634 }
635 }
636
637 /**
638 * {@inheritDoc}
639 */
640 @Override
641 protected void paintDropLine(Graphics g) {
642 JTree.DropLocation loc = tree.getDropLocation();
643 if (!isDropLine(loc)) {
644 return;
645 }
646
647 Color c = (Color)style.get(paintContext, "Tree.dropLineColor");
648 if (c != null) {
649 g.setColor(c);
650 Rectangle rect = getDropLineRect(loc);
651 g.fillRect(rect.x, rect.y, rect.width, rect.height);
652 }
653 }
654
655 private void repaintDropLocation(JTree.DropLocation loc) {
656 if (loc == null) {
657 return;
658 }
659
660 Rectangle r;
661
662 if (isDropLine(loc)) {
663 r = getDropLineRect(loc);
664 } else {
665 r = tree.getPathBounds(loc.getPath());
666 if (r != null) {
667 r.x = 0;
668 r.width = tree.getWidth();
669 }
670 }
671
672 if (r != null) {
673 tree.repaint(r);
674 }
675 }
676
677 /**
678 * {@inheritDoc}
679 */
680 @Override
681 protected int getRowX(int row, int depth) {
682 return super.getRowX(row, depth) + padding;
683 }
684
685 @SuppressWarnings("serial") // Superclass is not serializable across versions
686 private class SynthTreeCellRenderer extends DefaultTreeCellRenderer
687 implements UIResource {
688 SynthTreeCellRenderer() {
689 }
690
691 @Override
692 public String getName() {
693 return "Tree.cellRenderer";
694 }
695
696 @Override
697 public Component getTreeCellRendererComponent(JTree tree, Object value,
698 boolean sel,
699 boolean expanded,
700 boolean leaf, int row,
701 boolean hasFocus) {
702 if (!useTreeColors && (sel || hasFocus)) {
703 SynthLookAndFeel.setSelectedUI((SynthLabelUI)SynthLookAndFeel.
704 getUIOfType(getUI(), SynthLabelUI.class),
705 sel, hasFocus, tree.isEnabled(), false);
706 }
707 else {
708 SynthLookAndFeel.resetSelectedUI();
709 }
710 return super.getTreeCellRendererComponent(tree, value, sel,
711 expanded, leaf, row, hasFocus);
712 }
713
714 @Override
715 public void paint(Graphics g) {
716 paintComponent(g);
717 if (hasFocus) {
718 SynthContext context = getContext(tree, Region.TREE_CELL);
719
720 if (context.getStyle() == null) {
721 assert false: "SynthTreeCellRenderer is being used " +
722 "outside of UI that created it";
723 return;
724 }
725 int imageOffset = 0;
726 Icon currentI = getIcon();
727
728 if(currentI != null && getText() != null) {
729 imageOffset = currentI.getIconWidth() +
730 Math.max(0, getIconTextGap() - 1);
731 }
732 if (selected) {
733 context.setComponentState(ENABLED | SELECTED);
734 }
735 else {
736 context.setComponentState(ENABLED);
737 }
738 if(getComponentOrientation().isLeftToRight()) {
739 context.getPainter().paintTreeCellFocus(context, g,
740 imageOffset, 0, getWidth() - imageOffset,
741 getHeight());
742 }
743 else {
744 context.getPainter().paintTreeCellFocus(context, g,
745 0, 0, getWidth() - imageOffset, getHeight());
746 }
747 context.dispose();
748 }
749 SynthLookAndFeel.resetSelectedUI();
750 }
751 }
752
753
754 private static class SynthTreeCellEditor extends DefaultTreeCellEditor {
755 public SynthTreeCellEditor(JTree tree,
756 DefaultTreeCellRenderer renderer) {
757 super(tree, renderer);
758 setBorderSelectionColor(null);
759 }
760
761 @Override
762 protected TreeCellEditor createTreeCellEditor() {
763 @SuppressWarnings("serial") // anonymous class
764 JTextField tf = new JTextField() {
765 @Override
766 public String getName() {
767 return "Tree.cellEditor";
768 }
769 };
770 DefaultCellEditor editor = new DefaultCellEditor(tf);
771
772 // One click to edit.
773 editor.setClickCountToStart(1);
774 return editor;
775 }
776 }
777
778 //
779 // BasicTreeUI directly uses expandIcon outside of the Synth methods.
780 // To get the correct context we return an instance of this that fetches
781 // the SynthContext as needed.
782 //
783 private class ExpandedIconWrapper extends SynthIcon {
784 public void paintIcon(SynthContext context, Graphics g, int x,
785 int y, int w, int h) {
786 if (context == null) {
787 context = getContext(tree);
788 SynthIcon.paintIcon(expandedIcon, context, g, x, y, w, h);
789 context.dispose();
790 }
791 else {
792 SynthIcon.paintIcon(expandedIcon, context, g, x, y, w, h);
793 }
794 }
795
796 public int getIconWidth(SynthContext context) {
797 int width;
798 if (context == null) {
799 context = getContext(tree);
800 width = SynthIcon.getIconWidth(expandedIcon, context);
801 context.dispose();
802 }
803 else {
804 width = SynthIcon.getIconWidth(expandedIcon, context);
805 }
806 return width;
807 }
808
809 public int getIconHeight(SynthContext context) {
810 int height;
811 if (context == null) {
812 context = getContext(tree);
813 height = SynthIcon.getIconHeight(expandedIcon, context);
814 context.dispose();
815 }
816 else {
817 height = SynthIcon.getIconHeight(expandedIcon, context);
818 }
819 return height;
820 }
821 }
822 }