Source Code Cross Referenced for SAbstractIconTextCompound.java in  » Swing-Library » wings3 » org » wings » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Swing Library » wings3 » org.wings 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2000,2005 wingS development team.
003:         *
004:         * This file is part of wingS (http://wingsframework.org).
005:         *
006:         * wingS is free software; you can redistribute it and/or modify
007:         * it under the terms of the GNU Lesser General Public License
008:         * as published by the Free Software Foundation; either version 2.1
009:         * of the License, or (at your option) any later version.
010:         *
011:         * Please see COPYING for the complete licence.
012:         */
013:        package org.wings;
014:
015:        import org.wings.plaf.ButtonCG;
016:        import org.wings.plaf.CheckBoxCG;
017:        import org.wings.plaf.ClickableCG;
018:        import org.wings.plaf.RadioButtonCG;
019:        import org.wings.plaf.ToggleButtonCG;
020:        import org.wings.style.Selector;
021:        import org.wings.style.CSSStyleSheet;
022:        import org.wings.style.CSSAttributeSet;
023:        import org.wings.style.CSSProperty;
024:
025:        import javax.swing.event.ChangeEvent;
026:        import javax.swing.event.ChangeListener;
027:        import javax.swing.event.EventListenerList;
028:        import java.awt.*;
029:        import java.awt.event.ItemEvent;
030:        import java.awt.event.ItemListener;
031:
032:        /**
033:         * Base class for elements with icon and text like {@link SAbstractButton} and {@link SClickable}.
034:         *
035:         * It supports 7 different icon states.
036:         *
037:         * @author <a href="mailto:haaf@mercatis.de">Armin Haaf</a>
038:         */
039:        public abstract class SAbstractIconTextCompound extends SComponent
040:                implements  ItemSelectable {
041:            public static final int ICON_COUNT = 7;
042:            public static final int DISABLED_ICON = 0;
043:            public static final int DISABLED_SELECTED_ICON = 1;
044:            public static final int ENABLED_ICON = 2;
045:            public static final int SELECTED_ICON = 3;
046:            public static final int ROLLOVER_ICON = 4;
047:            public static final int ROLLOVER_SELECTED_ICON = 5;
048:            public static final int PRESSED_ICON = 6;
049:
050:            /**
051:             * A Pseudo selector for buttons in selected state
052:             * Refer to {@link SComponent#setAttribute(org.wings.style.Selector, org.wings.style.CSSProperty, String)}
053:             */
054:            public static final Selector SELECTOR_SELECTED = new Selector(
055:                    "selected");
056:
057:            private SButtonModel model;
058:
059:            /**
060:             * The button model's <code>changeListener</code>.
061:             */
062:            protected ChangeListener changeListener = null;
063:
064:            protected transient ChangeEvent changeEvent = null;
065:
066:            /**
067:             * the text the button is showing
068:             */
069:            private String text;
070:
071:            /**
072:             * The icon to be displayed
073:             */
074:            private SIcon icon;
075:
076:            private SIcon disabledIcon;
077:
078:            private SIcon selectedIcon;
079:
080:            private SIcon pressedIcon;
081:
082:            private SIcon disabledSelectedIcon;
083:
084:            private SIcon rolloverIcon;
085:
086:            private SIcon rolloverSelectedIcon;
087:
088:            private int verticalTextPosition = SConstants.CENTER;
089:
090:            private int horizontalTextPosition = SConstants.RIGHT;
091:
092:            private int iconTextGap = 4;
093:
094:            private boolean delayEvents = false;
095:            private boolean delayedEvent = false;
096:
097:            /**
098:             * Create a button with given text.
099:             *
100:             * @param text the button text
101:             */
102:            public SAbstractIconTextCompound(String text) {
103:                setText(text);
104:                model = new SDefaultButtonModel();
105:            }
106:
107:            /**
108:             * Creates a new submit button
109:             */
110:            public SAbstractIconTextCompound() {
111:                this (null);
112:            }
113:
114:            public SButtonModel getModel() {
115:                return model;
116:            }
117:
118:            public void setModel(SButtonModel model) {
119:                if (model == null)
120:                    throw new IllegalArgumentException("null not allowed");
121:                reloadIfChange(this .model, model);
122:                this .model = model;
123:            }
124:
125:            /**
126:             * Returns the selected items or null if no items are selected.
127:             */
128:            public Object[] getSelectedObjects() {
129:                return model.isSelected() ? new Object[] { this  } : null;
130:            }
131:
132:            /**
133:             * Returns an array of all the <code>ItemListener</code>s added
134:             * to this SAbstractIconTextCompound with addItemListener().
135:             *
136:             * @return all of the <code>ItemListener</code>s added or an empty
137:             *         array if no listeners have been added
138:             */
139:            public ItemListener[] getItemListeners() {
140:                return (ItemListener[]) (getListeners(ItemListener.class));
141:            }
142:
143:            /**
144:             * Adds a ItemListener to the button.
145:             *
146:             * @see #removeItemListener(ItemListener)
147:             */
148:            public void addItemListener(ItemListener il) {
149:                addEventListener(ItemListener.class, il);
150:            }
151:
152:            /**
153:             * Remove the given itemListener from list of
154:             * item listeners.
155:             *
156:             * @see #addItemListener(ItemListener)
157:             */
158:            public void removeItemListener(ItemListener il) {
159:                removeEventListener(ItemListener.class, il);
160:            }
161:
162:            /**
163:             * Returns an array of all the <code>ChangeListener</code>s added
164:             * to this SAbstractIconTextCompound with addChangeListener().
165:             *
166:             * @return all of the <code>ChangeListener</code>s added or an empty
167:             *         array if no listeners have been added
168:             */
169:            public ChangeListener[] getChangeListeners() {
170:                return (ChangeListener[]) (getListeners(ChangeListener.class));
171:            }
172:
173:            /**
174:             * Adds a <code>ChangeListener</code> to the button.
175:             *
176:             * @param l the listener to be added
177:             */
178:            public void addChangeListener(ChangeListener l) {
179:                addEventListener(ChangeListener.class, l);
180:            }
181:
182:            /**
183:             * Removes a ChangeListener from the button.
184:             *
185:             * @param l the listener to be removed
186:             */
187:            public void removeChangeListener(ChangeListener l) {
188:                removeEventListener(ChangeListener.class, l);
189:            }
190:
191:            /**
192:             * Notifies all listeners that have registered interest for
193:             * notification on this event type.  The event instance
194:             * is lazily created using the parameters passed into
195:             * the fire method.
196:             *
197:             * @see EventListenerList
198:             */
199:            protected void fireStateChanged() {
200:                // Guaranteed to return a non-null array
201:                Object[] listeners = getListenerList();
202:                // Process the listeners last to first, notifying
203:                // those that are interested in this event
204:                for (int i = listeners.length - 2; i >= 0; i -= 2) {
205:                    if (listeners[i] == ChangeListener.class) {
206:                        // Lazily create the event:
207:                        if (changeEvent == null)
208:                            changeEvent = new ChangeEvent(this );
209:                        ((ChangeListener) listeners[i + 1])
210:                                .stateChanged(changeEvent);
211:                    }
212:                }
213:            }
214:
215:            public void setHorizontalTextPosition(int textPosition) {
216:                reloadIfChange(this .horizontalTextPosition, textPosition);
217:                horizontalTextPosition = textPosition;
218:
219:            }
220:
221:            public int getHorizontalTextPosition() {
222:                return horizontalTextPosition;
223:            }
224:
225:            public void setVerticalTextPosition(int textPosition) {
226:                reloadIfChange(this .verticalTextPosition, textPosition);
227:                verticalTextPosition = textPosition;
228:            }
229:
230:            public int getVerticalTextPosition() {
231:                return verticalTextPosition;
232:            }
233:
234:            public void setIconTextGap(int gap) {
235:                reloadIfChange(this .iconTextGap, gap);
236:                iconTextGap = gap;
237:            }
238:
239:            public int getIconTextGap() {
240:                return iconTextGap;
241:            }
242:
243:            /**
244:             * Sets the icon for the compound.
245:             *
246:             * @param i the icon.
247:             */
248:            public void setIcon(SIcon i) {
249:                if (isDifferent(icon, i)) {
250:                    // do reload if previous icon was null
251:                    if (isUpdatePossible() && icon != null) {
252:                        if (SButton.class.isAssignableFrom(getClass()))
253:                            update(((ButtonCG) getCG()).getIconUpdate(
254:                                    (SButton) this , i));
255:                        else if (SCheckBox.class.isAssignableFrom(getClass()))
256:                            update(((CheckBoxCG) getCG()).getIconUpdate(
257:                                    (SCheckBox) this , i));
258:                        else if (SRadioButton.class
259:                                .isAssignableFrom(getClass()))
260:                            update(((RadioButtonCG) getCG()).getIconUpdate(
261:                                    (SRadioButton) this , i));
262:                        else if (SToggleButton.class
263:                                .isAssignableFrom(getClass()))
264:                            update(((ToggleButtonCG) getCG()).getIconUpdate(
265:                                    (SToggleButton) this , i));
266:                        else if (SClickable.class.isAssignableFrom(getClass()))
267:                            update(((ClickableCG) getCG()).getIconUpdate(
268:                                    (SClickable) this , i));
269:                        else
270:                            reload();
271:                    } else {
272:                        reload();
273:                    }
274:                    icon = i;
275:                }
276:            }
277:
278:            /**
279:             * Returns the icon of the Compound.
280:             *
281:             * @see #setIcon(SIcon)
282:             */
283:            public SIcon getIcon() {
284:                return icon;
285:            }
286:
287:            /**
288:             * Sets the icon that is displayed when the compound is pressed with the mouse.
289:             *
290:             * @param icon to be shown when mouse button is pressed.
291:             */
292:            public void setPressedIcon(SIcon icon) {
293:                reloadIfChange(pressedIcon, icon);
294:                pressedIcon = icon;
295:            }
296:
297:            /**
298:             * Returns the icon that is displayed when a compound is pressed with the mouse.
299:             *
300:             * @see #setPressedIcon(SIcon)
301:             */
302:            public SIcon getPressedIcon() {
303:                return pressedIcon;
304:            }
305:
306:            /**
307:             * Sets the icon that is displayed as rollOver effect (meaning the icon
308:             * shown when the mouse is just positioned over the compound).
309:             *
310:             * @param icon rollOver icon for unselected compound.
311:             */
312:            public void setRolloverIcon(SIcon icon) {
313:                reloadIfChange(rolloverIcon, icon);
314:                rolloverIcon = icon;
315:            }
316:
317:            /**
318:             * Returns the icon that is displayed as rollOver effect (meaning the icon
319:             * shown when the mouse is just positioned over the compound).
320:             *
321:             * @see #setRolloverIcon(SIcon)
322:             */
323:            public SIcon getRolloverIcon() {
324:                return rolloverIcon;
325:            }
326:
327:            /**
328:             * Sets the icon that is displayed as rollover effect of a selected compound
329:             * (meaning the icon shown when the mouse is just positioned over the selected compound).
330:             *
331:             * @param icon rollOver icon for selected compound.
332:             */
333:            public void setRolloverSelectedIcon(SIcon icon) {
334:                reloadIfChange(rolloverSelectedIcon, icon);
335:                rolloverSelectedIcon = icon;
336:            }
337:
338:            /**
339:             * Returns the the rollOver icon of a selected compound.
340:             *
341:             * @see #setRolloverSelectedIcon(SIcon)
342:             */
343:            public SIcon getRolloverSelectedIcon() {
344:                return rolloverSelectedIcon;
345:            }
346:
347:            /**
348:             * Sets the icon that is displayed when a compound is selected.
349:             *
350:             * @param icon to be shown for a selected compound.
351:             */
352:            public void setSelectedIcon(SIcon icon) {
353:                reloadIfChange(selectedIcon, icon);
354:                selectedIcon = icon;
355:            }
356:
357:            /**
358:             * Returns the icon of a selected compound.
359:             *
360:             * @see #setSelectedIcon(SIcon)
361:             */
362:            public SIcon getSelectedIcon() {
363:                return selectedIcon;
364:            }
365:
366:            /**
367:             * Sets the Icon that is displayed when a selected compound is disabled .
368:             *
369:             * @param icon to be shown for a selected compound that is disabled.
370:             */
371:            public void setDisabledSelectedIcon(SIcon icon) {
372:                reloadIfChange(disabledSelectedIcon, icon);
373:                disabledSelectedIcon = icon;
374:            }
375:
376:            /**
377:             * Returns the icon of a selected compound that is disabled.
378:             *
379:             * @see #setDisabledSelectedIcon(SIcon)
380:             */
381:            public SIcon getDisabledSelectedIcon() {
382:                return disabledSelectedIcon;
383:            }
384:
385:            /**
386:             * Sets the icon that is displayed when a compound is disabled.
387:             *
388:             * @param icon to be shown for a disabled compound.
389:             */
390:            public void setDisabledIcon(SIcon icon) {
391:                reloadIfChange(disabledIcon, icon);
392:                disabledIcon = icon;
393:            }
394:
395:            /**
396:             * Returns the the icon of a compound that is disabled.
397:             *
398:             * @see #setDisabledIcon(SIcon)
399:             */
400:            public SIcon getDisabledIcon() {
401:                // Creates disabled icon only for SImageIcons not for SURLIcons
402:                /*
403:                 if(disabledIcon == null) {
404:                   if(icon != null && icon instanceof SImageIcon)
405:                     disabledIcon = new SImageIcon(GrayFilter.createDisabledImage(((SImageIcon)icon).getImage()));
406:                 }
407:                 */
408:                return disabledIcon;
409:            }
410:
411:            /**
412:             * Return the background color.
413:             *
414:             * @return the background color
415:             */
416:            public Color getSelectionBackground() {
417:                return dynamicStyles == null
418:                        || dynamicStyles.get(SELECTOR_SELECTED) == null ? null
419:                        : CSSStyleSheet
420:                                .getBackground((CSSAttributeSet) dynamicStyles
421:                                        .get(SELECTOR_SELECTED));
422:            }
423:
424:            /**
425:             * Set the foreground color.
426:             *
427:             * @param color the new foreground color
428:             */
429:            public void setSelectionBackground(Color color) {
430:                setAttribute(SELECTOR_SELECTED, CSSProperty.BACKGROUND_COLOR,
431:                        CSSStyleSheet.getAttribute(color));
432:            }
433:
434:            /**
435:             * Return the foreground color.
436:             *
437:             * @return the foreground color
438:             */
439:            public Color getSelectionForeground() {
440:                return dynamicStyles == null
441:                        || dynamicStyles.get(SELECTOR_SELECTED) == null ? null
442:                        : CSSStyleSheet
443:                                .getForeground((CSSAttributeSet) dynamicStyles
444:                                        .get(SELECTOR_SELECTED));
445:            }
446:
447:            /**
448:             * Set the foreground color.
449:             *
450:             * @param color the new foreground color
451:             */
452:            public void setSelectionForeground(Color color) {
453:                setAttribute(SELECTOR_SELECTED, CSSProperty.COLOR,
454:                        CSSStyleSheet.getAttribute(color));
455:            }
456:
457:            /**
458:             * Set the font.
459:             *
460:             * @param font the new font
461:             */
462:            public void setSelectionFont(SFont font) {
463:                setAttributes(SELECTOR_SELECTED, CSSStyleSheet
464:                        .getAttributes(font));
465:            }
466:
467:            /**
468:             * Return the font.
469:             *
470:             * @return the font
471:             */
472:            public SFont getSelectionFont() {
473:                return dynamicStyles == null
474:                        || dynamicStyles.get(SELECTOR_SELECTED) == null ? null
475:                        : CSSStyleSheet.getFont((CSSAttributeSet) dynamicStyles
476:                                .get(SELECTOR_SELECTED));
477:            }
478:
479:            /**
480:             * Sets the label of the button.
481:             */
482:            public void setText(String t) {
483:                if (isDifferent(text, t)) {
484:                    // do reload if previous text was null
485:                    if (isUpdatePossible() && text != null) {
486:                        if (SButton.class.isAssignableFrom(getClass()))
487:                            update(((ButtonCG) getCG()).getTextUpdate(
488:                                    (SButton) this , t));
489:                        else if (SCheckBox.class.isAssignableFrom(getClass()))
490:                            update(((CheckBoxCG) getCG()).getTextUpdate(
491:                                    (SCheckBox) this , t));
492:                        else if (SRadioButton.class
493:                                .isAssignableFrom(getClass()))
494:                            update(((RadioButtonCG) getCG()).getTextUpdate(
495:                                    (SRadioButton) this , t));
496:                        else if (SToggleButton.class
497:                                .isAssignableFrom(getClass()))
498:                            update(((ToggleButtonCG) getCG()).getTextUpdate(
499:                                    (SToggleButton) this , t));
500:                        else if (SClickable.class.isAssignableFrom(getClass()))
501:                            update(((ClickableCG) getCG()).getTextUpdate(
502:                                    (SClickable) this , t));
503:                        else
504:                            reload();
505:                    } else {
506:                        reload();
507:                    }
508:                    text = t;
509:                }
510:            }
511:
512:            /**
513:             * Return the text of the button.
514:             *
515:             * @return the text
516:             */
517:            public String getText() {
518:                return text;
519:            }
520:
521:            public boolean isSelected() {
522:                return model.isSelected();
523:            }
524:
525:            /**
526:             * Toggle the selection. If the new selection
527:             * is different to the old selection
528:             * an {@link ItemEvent} is raised.
529:             */
530:            public void setSelected(boolean selected) {
531:                if (model.isSelected() != selected) {
532:                    model.setSelected(selected);
533:
534:                    if (!delayEvents) {
535:                        fireStateChanged();
536:                        fireItemStateChanged(new ItemEvent(this ,
537:                                ItemEvent.ITEM_STATE_CHANGED, this , model
538:                                        .isSelected() ? ItemEvent.SELECTED
539:                                        : ItemEvent.DESELECTED));
540:                        delayedEvent = false;
541:                    } else
542:                        delayedEvent = true;
543:
544:                    reload();
545:                }
546:            }
547:
548:            /**
549:             * Sets the proper icons for buttonstatus enabled resp. disabled.
550:             */
551:            public void setIcons(SIcon[] icons) {
552:                setIcon(icons[ENABLED_ICON]);
553:                setDisabledIcon(icons[DISABLED_ICON]);
554:                setDisabledSelectedIcon(icons[DISABLED_SELECTED_ICON]);
555:                setRolloverIcon(icons[ROLLOVER_ICON]);
556:                setRolloverSelectedIcon(icons[ROLLOVER_SELECTED_ICON]);
557:                setPressedIcon(icons[PRESSED_ICON]);
558:                setSelectedIcon(icons[SELECTED_ICON]);
559:            }
560:
561:            protected final void delayEvents(boolean b) {
562:                delayEvents = b;
563:            }
564:
565:            protected final boolean shouldDelayEvents() {
566:                return delayEvents;
567:            }
568:
569:            /**
570:             * Reports a selection change.
571:             *
572:             * @param ie report this event to all listeners
573:             * @see java.awt.event.ItemListener
574:             * @see java.awt.ItemSelectable
575:             */
576:            protected void fireItemStateChanged(ItemEvent ie) {
577:                if (ie == null)
578:                    return;
579:
580:                // Guaranteed to return a non-null array
581:                Object[] listeners = getListenerList();
582:                // Process the listeners last to first, notifying
583:                // those that are interested in this event
584:                for (int i = listeners.length - 2; i >= 0; i -= 2) {
585:                    if (listeners[i] == ItemListener.class) {
586:                        ((ItemListener) listeners[i + 1]).itemStateChanged(ie);
587:                    }
588:                }
589:            }
590:
591:            public void fireIntermediateEvents() {
592:            }
593:
594:            public void fireFinalEvents() {
595:                super .fireFinalEvents();
596:                if (delayedEvent) {
597:                    fireStateChanged();
598:                    fireItemStateChanged(new ItemEvent(this ,
599:                            ItemEvent.ITEM_STATE_CHANGED, this , model
600:                                    .isSelected() ? ItemEvent.SELECTED
601:                                    : ItemEvent.DESELECTED));
602:                    delayedEvent = false;
603:                }
604:            }
605:        }
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