Source Code Cross Referenced for DefaultTabFolder.java in  » IDE-Eclipse » ui-workbench » org » eclipse » ui » internal » presentations » defaultpresentation » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Eclipse » ui workbench » org.eclipse.ui.internal.presentations.defaultpresentation 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*******************************************************************************
002:         * Copyright (c) 2004, 2006 IBM Corporation and others.
003:         * All rights reserved. This program and the accompanying materials
004:         * are made available under the terms of the Eclipse Public License v1.0
005:         * which accompanies this distribution, and is available at
006:         * http://www.eclipse.org/legal/epl-v10.html
007:         *
008:         * Contributors:
009:         *     IBM Corporation - initial API and implementation
010:         *******************************************************************************/package org.eclipse.ui.internal.presentations.defaultpresentation;
011:
012:        import org.eclipse.core.runtime.Assert;
013:        import org.eclipse.jface.util.Geometry;
014:        import org.eclipse.swt.SWT;
015:        import org.eclipse.swt.custom.CTabFolder;
016:        import org.eclipse.swt.custom.CTabFolderEvent;
017:        import org.eclipse.swt.custom.CTabItem;
018:        import org.eclipse.swt.events.MouseAdapter;
019:        import org.eclipse.swt.events.MouseEvent;
020:        import org.eclipse.swt.events.SelectionAdapter;
021:        import org.eclipse.swt.events.SelectionEvent;
022:        import org.eclipse.swt.graphics.Font;
023:        import org.eclipse.swt.graphics.GC;
024:        import org.eclipse.swt.graphics.Image;
025:        import org.eclipse.swt.graphics.Point;
026:        import org.eclipse.swt.graphics.Rectangle;
027:        import org.eclipse.swt.widgets.Composite;
028:        import org.eclipse.swt.widgets.Control;
029:        import org.eclipse.swt.widgets.Event;
030:        import org.eclipse.swt.widgets.Label;
031:        import org.eclipse.swt.widgets.Listener;
032:        import org.eclipse.swt.widgets.ToolBar;
033:        import org.eclipse.swt.widgets.ToolItem;
034:        import org.eclipse.ui.internal.IWorkbenchGraphicConstants;
035:        import org.eclipse.ui.internal.WorkbenchImages;
036:        import org.eclipse.ui.internal.WorkbenchMessages;
037:        import org.eclipse.ui.internal.dnd.DragUtil;
038:        import org.eclipse.ui.internal.presentations.PaneFolder;
039:        import org.eclipse.ui.internal.presentations.PaneFolderButtonListener;
040:        import org.eclipse.ui.internal.presentations.util.AbstractTabFolder;
041:        import org.eclipse.ui.internal.presentations.util.AbstractTabItem;
042:        import org.eclipse.ui.internal.presentations.util.PartInfo;
043:        import org.eclipse.ui.internal.presentations.util.TabFolderEvent;
044:        import org.eclipse.ui.internal.util.Util;
045:
046:        /**
047:         * @since 3.1
048:         */
049:        public class DefaultTabFolder extends AbstractTabFolder {
050:
051:            private PaneFolder paneFolder;
052:            private Control viewToolBar;
053:            private Label titleLabel;
054:
055:            private PaneFolderButtonListener buttonListener = new PaneFolderButtonListener() {
056:                public void stateButtonPressed(int buttonId) {
057:                    fireEvent(TabFolderEvent.stackStateToEventId(buttonId));
058:                }
059:
060:                /**
061:                 * Called when a close button is pressed.
062:                 *   
063:                 * @param item the tab whose close button was pressed
064:                 */
065:                public void closeButtonPressed(CTabItem item) {
066:                    fireEvent(TabFolderEvent.EVENT_CLOSE, getTab(item));
067:                }
068:
069:                /**
070:                 * 
071:                 * @since 3.0
072:                 */
073:                public void showList(CTabFolderEvent event) {
074:                    event.doit = false;
075:                    fireEvent(TabFolderEvent.EVENT_SHOW_LIST);
076:                }
077:            };
078:
079:            private Listener selectionListener = new Listener() {
080:                public void handleEvent(Event e) {
081:                    AbstractTabItem item = getTab((CTabItem) e.item);
082:
083:                    if (item != null) {
084:                        fireEvent(TabFolderEvent.EVENT_TAB_SELECTED, item);
085:                    }
086:                }
087:            };
088:
089:            private static DefaultTabFolderColors defaultColors = new DefaultTabFolderColors();
090:
091:            private DefaultTabFolderColors[] activeShellColors = {
092:                    defaultColors, defaultColors, defaultColors };
093:            private DefaultTabFolderColors[] inactiveShellColors = {
094:                    defaultColors, defaultColors, defaultColors };
095:            private boolean shellActive = false;
096:
097:            /**
098:             * Create a new instance of the receiver
099:             * 
100:             * @param parent
101:             * @param flags
102:             * @param allowMin
103:             * @param allowMax
104:             */
105:            public DefaultTabFolder(Composite parent, int flags,
106:                    boolean allowMin, boolean allowMax) {
107:                paneFolder = new PaneFolder(parent, flags | SWT.NO_BACKGROUND);
108:                paneFolder.addButtonListener(buttonListener);
109:                paneFolder.setMinimizeVisible(allowMin);
110:                paneFolder.setMaximizeVisible(allowMax);
111:                paneFolder.getControl().addListener(SWT.Selection,
112:                        selectionListener);
113:                paneFolder.setTopRight(null);
114:
115:                // Initialize view menu dropdown
116:                {
117:                    ToolBar actualToolBar = new ToolBar(
118:                            paneFolder.getControl(), SWT.FLAT
119:                                    | SWT.NO_BACKGROUND);
120:                    viewToolBar = actualToolBar;
121:
122:                    ToolItem pullDownButton = new ToolItem(actualToolBar,
123:                            SWT.PUSH);
124:                    Image hoverImage = WorkbenchImages
125:                            .getImage(IWorkbenchGraphicConstants.IMG_LCL_RENDERED_VIEW_MENU);
126:                    pullDownButton.setDisabledImage(hoverImage);
127:                    pullDownButton.setImage(hoverImage);
128:                    pullDownButton.setToolTipText(WorkbenchMessages.Menu);
129:                    actualToolBar.addMouseListener(new MouseAdapter() {
130:                        public void mouseDown(MouseEvent e) {
131:                            fireEvent(TabFolderEvent.EVENT_PANE_MENU,
132:                                    getSelection(), getPaneMenuLocation());
133:                        }
134:                    });
135:                    pullDownButton.addSelectionListener(new SelectionAdapter() {
136:                        public void widgetSelected(SelectionEvent e) {
137:                            fireEvent(TabFolderEvent.EVENT_PANE_MENU,
138:                                    getSelection(), getPaneMenuLocation());
139:
140:                            super .widgetSelected(e);
141:                        }
142:                    });
143:                }
144:
145:                // Initialize content description label
146:                {
147:                    titleLabel = new Label(paneFolder.getControl(), SWT.NONE);
148:                    titleLabel.moveAbove(null);
149:                    titleLabel.setVisible(false);
150:                    attachListeners(titleLabel, false);
151:                }
152:
153:                attachListeners(paneFolder.getControl(), false);
154:                attachListeners(paneFolder.getViewForm(), false);
155:
156:                paneFolder.setTabHeight(computeTabHeight());
157:
158:                viewToolBar.moveAbove(null);
159:            }
160:
161:            /**
162:             * Changes the minimum number of characters to display in the pane folder
163:             * tab. This control how much information will be displayed to the user.
164:             * 
165:             * @param count
166:             *            The number of characters to display in the tab folder; this
167:             *            value should be a positive integer.
168:             * @see org.eclipse.swt.custom.CTabFolder#setMinimumCharacters(int)
169:             * @since 3.1
170:             */
171:            public void setMinimumCharacters(int count) {
172:                paneFolder.setMinimumCharacters(count);
173:            }
174:
175:            public void setSimpleTabs(boolean simple) {
176:                paneFolder.setSimpleTab(simple);
177:            }
178:
179:            /**
180:             * @param item
181:             * @return
182:             * @since 3.1
183:             */
184:            protected DefaultTabItem getTab(CTabItem item) {
185:                return (DefaultTabItem) item.getData();
186:            }
187:
188:            /* (non-Javadoc)
189:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#computeSize(int, int)
190:             */
191:            public Point computeSize(int widthHint, int heightHint) {
192:                return paneFolder.computeMinimumSize();
193:            }
194:
195:            /* package */PaneFolder getFolder() {
196:                return paneFolder;
197:            }
198:
199:            public AbstractTabItem getSelection() {
200:                return getTab(paneFolder.getSelection());
201:            }
202:
203:            /* (non-Javadoc)
204:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#add(int)
205:             */
206:            public AbstractTabItem add(int index, int flags) {
207:                DefaultTabItem result = new DefaultTabItem(
208:                        (CTabFolder) getFolder().getControl(), index, flags);
209:
210:                result.getWidget().setData(result);
211:
212:                return result;
213:            }
214:
215:            /* (non-Javadoc)
216:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getContentParent()
217:             */
218:            public Composite getContentParent() {
219:                return paneFolder.getContentParent();
220:            }
221:
222:            /* (non-Javadoc)
223:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setContent(org.eclipse.swt.widgets.Control)
224:             */
225:            public void setContent(Control newContent) {
226:                paneFolder.setContent(newContent);
227:            }
228:
229:            /* (non-Javadoc)
230:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getItems()
231:             */
232:            public AbstractTabItem[] getItems() {
233:                CTabItem[] items = paneFolder.getItems();
234:
235:                AbstractTabItem[] result = new AbstractTabItem[items.length];
236:
237:                for (int i = 0; i < result.length; i++) {
238:                    result[i] = getTab(items[i]);
239:                }
240:
241:                return result;
242:            }
243:
244:            /* (non-Javadoc)
245:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getItemCount()
246:             */
247:            public int getItemCount() {
248:                // Override retrieving all the items when we just want the count.
249:                return paneFolder.getItemCount();
250:            }
251:
252:            /* (non-Javadoc)
253:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setSelection(org.eclipse.ui.internal.presentations.util.AbstractTabItem)
254:             */
255:            public void setSelection(AbstractTabItem toSelect) {
256:                paneFolder.setSelection(indexOf(toSelect));
257:            }
258:
259:            /* (non-Javadoc)
260:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getToolbarParent()
261:             */
262:            public Composite getToolbarParent() {
263:                return paneFolder.getControl();
264:            }
265:
266:            /* (non-Javadoc)
267:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getControl()
268:             */
269:            public Control getControl() {
270:                return paneFolder.getControl();
271:            }
272:
273:            public void setUnselectedCloseVisible(boolean visible) {
274:                paneFolder.setUnselectedCloseVisible(visible);
275:            }
276:
277:            public void setUnselectedImageVisible(boolean visible) {
278:                paneFolder.setUnselectedImageVisible(visible);
279:            }
280:
281:            /* (non-Javadoc)
282:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getTabArea()
283:             */
284:            public Rectangle getTabArea() {
285:                return Geometry.toDisplay(paneFolder.getControl(), paneFolder
286:                        .getTitleArea());
287:            }
288:
289:            /**
290:             * @param enabled
291:             * @since 3.1
292:             */
293:            public void enablePaneMenu(boolean enabled) {
294:                if (enabled) {
295:                    paneFolder.setTopRight(viewToolBar);
296:                    viewToolBar.setVisible(true);
297:                } else {
298:                    paneFolder.setTopRight(null);
299:                    viewToolBar.setVisible(false);
300:                }
301:            }
302:
303:            /* (non-Javadoc)
304:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setSelectedInfo(org.eclipse.ui.internal.presentations.util.PartInfo)
305:             */
306:            public void setSelectedInfo(PartInfo info) {
307:                String newTitle = DefaultTabItem
308:                        .escapeAmpersands(info.contentDescription);
309:
310:                if (!Util.equals(titleLabel.getText(), newTitle)) {
311:                    titleLabel.setText(newTitle);
312:                }
313:
314:                if (!info.contentDescription.equals(Util.ZERO_LENGTH_STRING)) {
315:                    paneFolder.setTopLeft(titleLabel);
316:                    titleLabel.setVisible(true);
317:                } else {
318:                    paneFolder.setTopLeft(null);
319:                    titleLabel.setVisible(false);
320:                }
321:            }
322:
323:            /* (non-Javadoc)
324:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getPaneMenuLocation()
325:             */
326:            public Point getPaneMenuLocation() {
327:                Point toolbarSize = viewToolBar.getSize();
328:
329:                return viewToolBar.toDisplay(0, toolbarSize.y);
330:            }
331:
332:            /* (non-Javadoc)
333:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getPartListLocation()
334:             */
335:            public Point getPartListLocation() {
336:                return paneFolder.getControl().toDisplay(
337:                        paneFolder.getChevronLocation());
338:            }
339:
340:            /* (non-Javadoc)
341:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#getSystemMenuLocation()
342:             */
343:            public Point getSystemMenuLocation() {
344:                Rectangle bounds = DragUtil.getDisplayBounds(paneFolder
345:                        .getControl());
346:
347:                int idx = paneFolder.getSelectionIndex();
348:                if (idx > -1) {
349:                    CTabItem item = paneFolder.getItem(idx);
350:                    Rectangle itemBounds = item.getBounds();
351:
352:                    bounds.x += itemBounds.x;
353:                    bounds.y += itemBounds.y;
354:                }
355:
356:                Point location = new Point(bounds.x, bounds.y
357:                        + paneFolder.getTabHeight());
358:
359:                return location;
360:            }
361:
362:            /* (non-Javadoc)
363:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#isOnBorder(org.eclipse.swt.graphics.Point)
364:             */
365:            public boolean isOnBorder(Point toTest) {
366:                Control content = paneFolder.getContent();
367:                if (content != null) {
368:                    Rectangle displayBounds = DragUtil
369:                            .getDisplayBounds(content);
370:
371:                    if (paneFolder.getTabPosition() == SWT.TOP) {
372:                        return toTest.y >= displayBounds.y;
373:                    }
374:
375:                    if (toTest.y >= displayBounds.y
376:                            && toTest.y < displayBounds.y
377:                                    + displayBounds.height) {
378:                        return true;
379:                    }
380:                }
381:
382:                return super .isOnBorder(toTest);
383:            }
384:
385:            /* (non-Javadoc)
386:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#layout(boolean)
387:             */
388:            public void layout(boolean flushCache) {
389:                paneFolder.layout(flushCache);
390:                super .layout(flushCache);
391:            }
392:
393:            /* (non-Javadoc)
394:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setState(int)
395:             */
396:            public void setState(int state) {
397:                paneFolder.setState(state);
398:                super .setState(state);
399:            }
400:
401:            /* (non-Javadoc)
402:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setActive(int)
403:             */
404:            public void setActive(int activeState) {
405:                super .setActive(activeState);
406:                updateColors();
407:            }
408:
409:            /* (non-Javadoc)
410:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setTabPosition(int)
411:             */
412:            public void setTabPosition(int tabPosition) {
413:                paneFolder.setTabPosition(tabPosition);
414:                super .setTabPosition(tabPosition);
415:                layout(true);
416:            }
417:
418:            public void flushToolbarSize() {
419:                paneFolder.flushTopCenterSize();
420:            }
421:
422:            /* (non-Javadoc)
423:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setToolbar(org.eclipse.swt.widgets.Control)
424:             */
425:            public void setToolbar(Control toolbarControl) {
426:                paneFolder.setTopCenter(toolbarControl);
427:                super .setToolbar(toolbarControl);
428:            }
429:
430:            public void setColors(DefaultTabFolderColors colors,
431:                    int activationState, boolean shellActivationState) {
432:                Assert.isTrue(activationState < activeShellColors.length);
433:
434:                if (shellActivationState) {
435:                    activeShellColors[activationState] = colors;
436:                } else {
437:                    inactiveShellColors[activationState] = colors;
438:                }
439:
440:                if (activationState == getActive()
441:                        && shellActive == shellActivationState) {
442:                    updateColors();
443:                }
444:            }
445:
446:            /**
447:             * 
448:             * @since 3.1
449:             */
450:            private void updateColors() {
451:                DefaultTabFolderColors currentColors = shellActive ? activeShellColors[getActive()]
452:                        : inactiveShellColors[getActive()];
453:
454:                paneFolder.setSelectionForeground(currentColors.foreground);
455:                paneFolder.setSelectionBackground(currentColors.background,
456:                        currentColors.percentages, currentColors.vertical);
457:            }
458:
459:            public void setColors(DefaultTabFolderColors colors,
460:                    int activationState) {
461:                setColors(colors, activationState, true);
462:                setColors(colors, activationState, false);
463:            }
464:
465:            /* (non-Javadoc)
466:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#shellActive(boolean)
467:             */
468:            public void shellActive(boolean isActive) {
469:                this .shellActive = isActive;
470:                super .shellActive(isActive);
471:
472:                updateColors();
473:            }
474:
475:            /**
476:             * @param font
477:             * @since 3.1
478:             */
479:            public void setFont(Font font) {
480:                if (font != paneFolder.getControl().getFont()) {
481:                    paneFolder.getControl().setFont(font);
482:                    layout(true);
483:                    paneFolder.setTabHeight(computeTabHeight());
484:                }
485:            }
486:
487:            /**
488:             * @return the required tab height for this folder.
489:             */
490:            protected int computeTabHeight() {
491:                GC gc = new GC(getControl());
492:
493:                // Compute the tab height
494:                int tabHeight = Math.max(viewToolBar.computeSize(SWT.DEFAULT,
495:                        SWT.DEFAULT).y, gc.getFontMetrics().getHeight());
496:
497:                gc.dispose();
498:
499:                return tabHeight;
500:            }
501:
502:            /**
503:             * @param b
504:             * @since 3.1
505:             */
506:            public void setSingleTab(boolean b) {
507:                paneFolder.setSingleTab(b);
508:                AbstractTabItem[] items = getItems();
509:
510:                for (int i = 0; i < items.length; i++) {
511:                    DefaultTabItem item = (DefaultTabItem) items[i];
512:
513:                    item.updateTabText();
514:                }
515:
516:                layout(true);
517:            }
518:
519:            /* (non-Javadoc)
520:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#setVisible(boolean)
521:             */
522:            public void setVisible(boolean visible) {
523:                super .setVisible(visible);
524:                getFolder().setVisible(visible);
525:            }
526:
527:            /* (non-Javadoc)
528:             * @see org.eclipse.ui.internal.presentations.util.AbstractTabFolder#showMinMax(boolean)
529:             */
530:            public void showMinMax(boolean show) {
531:                paneFolder.showMinMax(show);
532:            }
533:        }
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