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/**
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 * Copyright (C) 2007 EDIT
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 * European Distributed Institute of Taxonomy
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 * http://www.e-taxonomy.eu
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 *
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 * The contents of this file are subject to the Mozilla Public License Version 1.1
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 * See LICENSE.TXT at the top of this package for the full license terms.
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 */
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package eu.etaxonomy.taxeditor.editor.name.e4.container;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import org.apache.commons.lang.StringUtils;
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import org.eclipse.core.runtime.Assert;
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import org.eclipse.e4.ui.di.UISynchronize;
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import org.eclipse.jface.dialogs.Dialog;
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import org.eclipse.jface.text.IDocument;
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import org.eclipse.jface.text.Position;
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import org.eclipse.jface.window.DefaultToolTip;
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import org.eclipse.swt.custom.StyledText;
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import org.eclipse.swt.dnd.DND;
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import org.eclipse.swt.dnd.DragSource;
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import org.eclipse.swt.dnd.Transfer;
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import org.eclipse.swt.events.ControlAdapter;
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import org.eclipse.swt.events.ControlEvent;
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import org.eclipse.swt.events.ControlListener;
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import org.eclipse.swt.events.FocusAdapter;
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import org.eclipse.swt.events.FocusEvent;
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import org.eclipse.swt.events.FocusListener;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.events.ModifyListener;
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import org.eclipse.swt.events.MouseAdapter;
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import org.eclipse.swt.events.MouseEvent;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.graphics.Font;
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import org.eclipse.swt.graphics.Image;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.Display;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.ui.forms.IFormPart;
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import org.eclipse.ui.forms.IManagedForm;
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import org.eclipse.ui.forms.widgets.TableWrapData;
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import org.eclipse.ui.forms.widgets.TableWrapLayout;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.name.TaxonName;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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import eu.etaxonomy.cdm.strategy.parser.ParserProblem;
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import eu.etaxonomy.taxeditor.editor.CdmDataTransfer;
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import eu.etaxonomy.taxeditor.editor.l10n.Messages;
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import eu.etaxonomy.taxeditor.editor.name.container.EditorAnnotation;
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import eu.etaxonomy.taxeditor.editor.name.container.EditorAnnotation.EditorAnnotationType;
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import eu.etaxonomy.taxeditor.editor.name.container.IContainerConstants;
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import eu.etaxonomy.taxeditor.editor.name.container.LineBreakListener;
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import eu.etaxonomy.taxeditor.editor.name.container.LineWrapSupport;
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import eu.etaxonomy.taxeditor.editor.name.e4.TaxonNameEditorE4;
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import eu.etaxonomy.taxeditor.editor.name.e4.dnd.NameEditorDragListenerE4;
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import eu.etaxonomy.taxeditor.editor.name.e4.dnd.NameEditorDragSourceEffect;
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import eu.etaxonomy.taxeditor.editor.name.operation.CreateSynonymInNewGroupOperation;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.model.IElementHasDetails;
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import eu.etaxonomy.taxeditor.model.NameHelper;
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import eu.etaxonomy.taxeditor.model.TextHelper;
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import eu.etaxonomy.taxeditor.parser.ParseHandler;
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import eu.etaxonomy.taxeditor.preference.Resources;
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72
/**
73
 * Formats <code>GroupedComposite</code> with cosmetic and layout properties
74
 * specific to the Editor. This should be used to maintain a consistent look and
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 * feel for all Editor freetext area components, such as
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 * DescriptionElementComposite.
77
 * <p>
78
 * Requires an <code>IManagedForm</code>, whose <code>input</code> is set to the
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 * contents of {@link #getData()} when the <code>GroupedComposite</code> gets
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 * focus, i.e. to populate the property sheet with the data.
81
 * </p>
82
 * <p>
83
 * The <code>IManagedForm</code> is also required to have a <code>Taxon</code>
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 * in its own <code>getData()</code>.
85
 * </p>
86
 * <p>
87
 * The <code>IManagedForm</code> can also used for drawing borders by calling
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 * the method <code>createBorderSupport()</code>.
89
 * </p>
90
 * @author pplitzner
91
 * @date Aug 24, 2017
92
 *
93
 * @param <T>
94
 */
95
abstract public class AbstractGroupedContainerE4<T extends TaxonBase> implements
96
		IFormPart, IContainerConstants, IElementHasDetails {
97

    
98
	protected ParseHandler parseHandler;
99

    
100
	private FocusListener nameCompositeFocusListener;
101
	private ModifyListener nameCompositeModifyListener;
102

    
103
	protected NameViewerE4 nameViewer;
104

    
105
	private AbstractGroupE4 group;
106

    
107
	private Label nonEditableInfoLabel;
108
	private DefaultToolTip nonEditableInfoHover;
109

    
110
	private static AbstractGroupedContainerE4<?> selection;
111

    
112
	private FocusListener focusListener;
113
	private LineBreakListener lineBreakListener;
114

    
115
	private int cursorPosition;
116

    
117
	protected Composite control;
118

    
119
	private Color backgroundColor;
120
	private boolean isDirty;
121

    
122
//    private ISelectionChangedListener selectionChangedListener;
123

    
124
	public AbstractGroupedContainerE4(AbstractGroupE4 group, T taxonBase) {
125
		setData(taxonBase);
126
		this.group = group;
127
		parseHandler = ParseHandler.NewInstance(taxonBase.getName());
128
	}
129

    
130
	public void createContent() {
131
		createControl();
132

    
133
		createTextViewer();
134
		createLineWrapSupport();
135
		createLineBreakListener();
136

    
137
		setMenu();
138

    
139
		setDraggableControl(new Control[] { getControl(),
140
				getNameViewer().getRulerControl() });
141

    
142
		createEmptyViewerPrompt(EMPTY_NAME_PROMPT);
143

    
144
		initializeComposite();
145

    
146
		createListener();
147

    
148
		enableFreeText();
149
	}
150

    
151
	protected void createListener() {
152
		nameCompositeModifyListener = (ModifyEvent e)->{
153
				// mark the composite dirty
154
				setDirty(true);
155
				// parse the text
156
				String text = nameViewer.getTextWidget().getText();
157

    
158
				TaxonName name = (TaxonName)parseHandler.parse(text);
159
				getTaxonBase().setName(name);
160
				getTaxonBase().setTitleCache((getTaxonBase().generateTitle()));
161

    
162
				// show errors resulting from parsing
163
				calculateAnnotations();
164
				// store the position of the cursor
165
				storeCursor();
166
				// notify selection listener
167
				setDelayedSelection();
168
		};
169

    
170
		nameCompositeFocusListener = new FocusAdapter() {
171

    
172
			@Override
173
			public void focusLost(FocusEvent e) {
174
				super.focusLost(e);
175

    
176
				persistName();
177
			}
178
		};
179

    
180
		addListener();
181
	}
182

    
183
	protected void addListener() {
184
		getNameViewer().getTextWidget().addModifyListener(
185
				nameCompositeModifyListener);
186
		getNameViewer().getTextWidget().addFocusListener(
187
				nameCompositeFocusListener);
188
	}
189

    
190
	protected void removeListener() {
191
		getNameViewer().getTextWidget().removeModifyListener(
192
				nameCompositeModifyListener);
193
		getNameViewer().getTextWidget().removeFocusListener(
194
				nameCompositeFocusListener);
195
	}
196

    
197
	/**
198
	 * Initialize the composite specific code
199
	 */
200
	protected abstract void initializeComposite();
201

    
202
	protected String getEmptyTextPrompt() {
203
		return EMPTY_NAME_PROMPT;
204
	}
205

    
206
	protected void initTextViewer() {
207

    
208
		updateIndent();
209

    
210
		updateIcon();
211

    
212
		String text = NameHelper.getDisplayNameWithRef(getData());
213

    
214
		if (text.length() == 0) {
215
			initEmptyText();
216
		} else {
217
			getNameViewer().setText(text);
218
			placeCursor();
219
		}
220
		calculateAnnotations();
221
	}
222

    
223
	synchronized protected void calculateAnnotations() {
224
		getNameViewer().clearAnnotations();
225
		showAnnotations();
226
	}
227

    
228
	public void showAnnotations() {
229

    
230
		if (getName() != null && getName().hasProblem()) {
231
			showParsingProblems();
232
		}
233

    
234
		if (!isNameParsable()) {
235
			getNameViewer()
236
					.addAnnotation(
237
							new EditorAnnotation(EditorAnnotationType.WARNING,
238
									0,
239
									Messages.AbstractGroupedContainer_EDIT_IN_DETAILS_VIEW));
240
		}
241

    
242
		if (isNameUsedMultipleTimes()) {
243
			getNameViewer().addAnnotation(
244
					new EditorAnnotation(EditorAnnotationType.WARNING, 0,
245
							Messages.AbstractGroupedContainer_MULTIPLE_USE));
246
		}
247

    
248
	}
249

    
250
	private void showParsingProblems() {
251
		TaxonName name = getName();
252
		if (name == null){
253
			return;
254
		}
255

    
256
		List<ParserProblem> parsingProblems = name.getParsingProblems();
257

    
258
		for (ParserProblem problem : parsingProblems) {
259
			getNameViewer().addAnnotation(new EditorAnnotation(problem),
260
					getParsingProblemPosition());
261
		}
262
	}
263

    
264
	private Position getParsingProblemPosition() {
265
		String text = getNameViewer().getTextWidget().getText();
266

    
267
		if (getName() != null && getName().hasProblem() && text.length() > 0) {
268
			int start = getName().getProblemStarts();
269
			int length = getName().getProblemEnds() - start;
270

    
271
			if (start == -1 || getName().getProblemEnds() == -1) {
272
				return null;
273
			}
274

    
275
			// Don't let squigglies try to draw beyond the end of the text
276
			if (text.length() < start + length) {
277
				length = text.length() - start;
278
			}
279
			if (length<0){
280
				return null;
281
			}
282
			return new Position(start, length);
283
		}
284
		return null;
285
	}
286

    
287
	protected void handleSplitText(String text) {
288
		// Create a synonym in a new homotypic group using text as name
289
		TaxonName synonymName = TaxonName.castAndDeproxy(
290
				ParseHandler.parseReferencedName(text, null));
291

    
292
		AbstractUtility.executeOperation(new CreateSynonymInNewGroupOperation(
293
				Messages.AbstractGroupedContainer_NEW_HETERO_SYNONYM, getEditor().getUndoContext(),
294
				getEditor().getTaxon(), synonymName, getEditor()), group.getContext().get(UISynchronize.class));
295
	}
296

    
297
	/**
298
	 * Refreshes the display with latest data from the model.
299
	 *
300
	 * Note: Will not parse the text and not calculate errors!
301
	 */
302
	@Override
303
    public void refresh() {
304
		// showNameRelations();
305

    
306
		String text = NameHelper.getDisplayNameWithRef(getTaxonBase());
307

    
308
		if (getNameViewer().getTextWidget() == null) {
309
			// we might get here via dnd. Look slike it can be ignored
310
			return;
311
		}
312

    
313
		if (text.length() == 0) {
314
			initEmptyText();
315
		} else if (!getNameViewer().getTextWidget().getText().equals(text)) {
316
			removeListener();
317
			getNameViewer().getTextWidget().setText(text);
318
			addListener();
319
		}
320

    
321
		updateNonEditableInfo();
322

    
323
		updateIcon();
324
		// placeCursor();
325
		updateIndent();
326

    
327
		enableFreeText();
328
	}
329

    
330
	protected abstract void updateIcon();
331

    
332
	protected abstract void updateIndent();
333

    
334
	protected abstract void updateNonEditableInfo();
335

    
336
	protected void enableFreeText() {
337
		setEnabled(isFreetextEditingAllowed());
338
	}
339

    
340
	/**
341
	 * Checks whether the freetext should be editable based on specific empty
342
	 * fields.
343
	 *
344
	 * @return
345
	 */
346
	private boolean isFreetextEditingAllowed() {
347
		boolean enableFreetext = true;
348

    
349
		enableFreetext |= isNameUsedMultipleTimes();
350
		enableFreetext &= isNameParsable();
351

    
352
		return enableFreetext;
353
	}
354

    
355
	/**
356
	 * Checks whether there are more than one, non-orphaned taxon bases
357
	 * attached to the taxon name
358
	 *
359
	 * @return
360
	 */
361
	private boolean isNameUsedMultipleTimes() {
362

    
363
		TaxonName name = getName();
364
		if (name != null){
365
			Set<TaxonBase> taxonBases = name.getTaxonBases();
366
			Iterator<TaxonBase> tbItr = taxonBases.iterator();
367
			int nonOrphanedTaxonBaseCount = taxonBases.size();
368

    
369
			while(tbItr.hasNext()) {
370
				TaxonBase<?> tb = tbItr.next();
371
				if(tb.isOrphaned()) {
372
					nonOrphanedTaxonBaseCount--;
373
				}
374
			}
375
			if(nonOrphanedTaxonBaseCount > 1) {
376
				return true;
377
			}
378
		}
379
		return false;
380
	}
381

    
382
	private boolean isNameParsable() {
383
		TaxonName name = getName();
384
		if (name == null){
385
			return false;
386
		}
387

    
388
		boolean isParsable = true;
389
		isParsable &= StringUtils.isBlank(name.getAppendedPhrase()); // taxonFieldsEmpty();
390
        if (name.isProtectedAuthorshipCache()){
391
            isParsable &= nameAuthorsSet(name);
392
        }
393
        if (name.isProtectedNameCache()){
394
            isParsable &= nameEpithetsNotSet(name) && nameAuthorsSet(name);
395
        }
396

    
397
		return isParsable;
398
	}
399

    
400
	/**
401
     * @param name
402
     * @return
403
     */
404
    private boolean nameAuthorsSet(TaxonName name) {
405
       boolean result = true;
406
       result &= name.getBasionymAuthorship() == null && name.getCombinationAuthorship() == null && name.getExBasionymAuthorship() == null && name.getExCombinationAuthorship() == null;
407
       return result;
408
    }
409

    
410
    /**
411
     * @param name
412
     * @return
413
     */
414
    private boolean nameEpithetsNotSet(TaxonName name) {
415
        boolean result = true;
416
        result &= name.getGenusOrUninomial() == null && name.getInfraGenericEpithet() == null && name.getSpecificEpithet() == null && name.getInfraSpecificEpithet() == null;
417

    
418
        return result;
419
    }
420

    
421
    /**
422
	 * Parse the text and calculate errors
423
	 */
424
	public void parseAndCalculateAnnotations() {
425
		removeListener();
426
		String unparsedNameString = getNameViewer().getTextWidget().getText();
427
		parseHandler.parse(unparsedNameString);
428
		addListener();
429
		calculateAnnotations();
430
	}
431

    
432
	public T getTaxonBase() {
433
		return getData();
434
	}
435

    
436
	public TaxonName getName() {
437
		return CdmBase.deproxy(getTaxonBase().getName());
438
	}
439

    
440
	public void persistName() {
441
		if (isDirty()) {
442
			getNameViewer().getTextWidget().setEnabled(false);
443
			final String unparsedNameString = getNameViewer().getTextWidget()
444
					.getText();
445
			final TaxonName name = (TaxonName)parseHandler
446
					.parseAndResolveDuplicates(unparsedNameString);
447
			getTaxonBase().setName(name);
448
			getTaxonBase().setTitleCache((getTaxonBase().generateTitle()));
449
			setDirty(false);
450
			getNameViewer().getTextWidget().setEnabled(true);
451

    
452
		}
453
	}
454

    
455
	public AbstractGroupE4 getGroup() {
456
		if (group == null) {
457
			throw new IllegalStateException("Group shall not be null."); //$NON-NLS-1$
458
		}
459
		return group;
460
	}
461

    
462
	public void remove() {
463
		getGroup().remove(this);
464
	}
465

    
466
	protected void createControl() {
467
		control = getEditor().getToolkit().createComposite(
468
				getGroup().getControl());
469

    
470
		control.setLayoutData(new TableWrapData(TableWrapData.FILL_GRAB));
471
		TableWrapLayout layout = new TableWrapLayout();
472
		layout.leftMargin = 0;
473
		layout.rightMargin = 0;
474
		layout.topMargin = 5;
475
		layout.bottomMargin = 5;
476

    
477
		layout.verticalSpacing = 0;
478
		layout.horizontalSpacing = 0;
479

    
480
		control.setLayout(layout);
481

    
482
	}
483

    
484
	protected TaxonNameEditorE4 getEditor() {
485
		return getGroup().getEditor();
486
	}
487

    
488
	public Composite getControl() {
489
		return control;
490
	}
491

    
492
	protected void createLineWrapSupport() {
493
		new LineWrapSupport(getNameViewer(), getEditor().getManagedForm());
494
	}
495

    
496
	protected void createTextViewer() {
497
		nameViewer = new NameViewerE4(control);
498

    
499
		focusListener = new FocusAdapter() {
500
			@Override
501
			public void focusGained(FocusEvent e) {
502
			    if (getEditor()
503
                        .getGroupedContainers().isEmpty()){
504
			        return;
505
			    }
506

    
507
				for (AbstractGroupedContainerE4<?> container : getEditor()
508
						.getGroupedContainers()) {
509
					container.colorSelected(NOT_SELECTED);
510
				}
511
				getEditor().getManagedForm().setInput(
512
						AbstractGroupedContainerE4.this);
513
				placeCursor();
514
				colorSelected(SELECTED_FOCUS);
515
			}
516
		};
517
		nameViewer.getTextWidget().addFocusListener(focusListener);
518

    
519
		MouseAdapter mouseListener = new MouseAdapter() {
520
			@Override
521
			public void mouseDown(MouseEvent e) {
522
				storeCursor();
523
			}
524
		};
525
		control.addMouseListener(mouseListener);
526
		nameViewer.getRulerControl().addMouseListener(mouseListener);
527
		nameViewer.getTextWidget().addMouseListener(mouseListener);
528
	}
529

    
530
	public void setIcon(Image icon) {
531
		getNameViewer().setIcon(icon);
532
	}
533

    
534
	public void setIndent(int indent) {
535
		if (control.getLayout() instanceof TableWrapLayout) {
536
			TableWrapLayout layout = ((TableWrapLayout) control.getLayout());
537
			layout.leftMargin = indent;
538
			layout.rightMargin = ACCEPTED_INDENT;
539
			control.setLayout(layout);
540
			control.layout();
541
		} else {
542
			throw new RuntimeException(
543
					"Couldn't indent - composite's layout must be TableWrapLayout."); //$NON-NLS-1$
544
		}
545
	}
546

    
547
	public void setSelected() {
548
		getNameViewer().getTextWidget().setFocus();
549
	}
550

    
551
	public boolean isSelected() {
552
		return getEditor().getSelectedContainer() == this;
553
	}
554

    
555
	public void colorSelected(int mode) {
556
		if (!control.isDisposed()) {
557
			String colorString = null;
558

    
559
			switch (mode) {
560
			case SELECTED_FOCUS:
561
				colorString = Resources.COLOR_CONTROL_SELECTED_FOCUS;
562
				break;
563
			case SELECTED_NO_FOCUS:
564
				colorString = Resources.COLOR_CONTROL_SELECTED;
565
				break;
566
			default:
567
				colorString = Resources.COLOR_COMPOSITE_BACKGROUND;
568
			}
569

    
570
			backgroundColor = AbstractUtility.getColor(colorString);
571

    
572
			setBackground(backgroundColor);
573
		}
574
	}
575

    
576
	private Delay delay = new Delay(Display.getCurrent());
577

    
578
	private class Delay extends Thread{
579

    
580
	    private volatile boolean stop = false;
581
        private Display display;
582

    
583
        public Delay(Display display) {
584
            this.display = display;
585
        }
586
        @Override
587
        public void run() {
588

    
589
            while (!stop) {
590
                try {
591
                    // my code goes here
592
                    Thread.sleep(1000);
593
                    if(!stop){
594
                        display.syncExec(() -> {
595
                                getEditor().getManagedForm().setInput(selection);
596
                        });
597
                        stop = true;
598
                    }
599
                } catch (InterruptedException ex) {
600
                    stop = true;
601
                }
602
            }
603
        }
604
        public void requestStop() {
605
            stop = true;
606
        }
607
	}
608

    
609
	protected void setDelayedSelection() {
610
		selection = this;
611

    
612
		Display display = Display.getCurrent();
613

    
614
		delay.requestStop();
615
		delay = new Delay(display);
616
		delay.start();
617

    
618
	}
619

    
620
	public void setBackground(Color color) {
621
		control.setBackground(color);
622

    
623
		for (Control child : control.getChildren()) {
624
			child.setBackground(color);
625
		}
626

    
627
		getNameViewer().setBackground(color);
628
	}
629

    
630
	public void setFont(Font font) {
631
		getNameViewer().getTextWidget().setFont(font);
632
	}
633

    
634
	public NameViewerE4 getNameViewer() {
635
		if (nameViewer == null) {
636
			throw new RuntimeException(
637
					"The Name Viewer is corrupt for Name Container: " //$NON-NLS-1$
638
							+ getTaxonBase().getName().getTitleCache());
639
		}
640
		return nameViewer;
641
	}
642

    
643
	public void createEmptyViewerPrompt(final String prompt) {
644

    
645
		Assert.isNotNull(getNameViewer());
646

    
647
		final StyledText textControl = getNameViewer().getTextWidget();
648
		final IDocument document = getNameViewer().getDocument();
649

    
650
		setFocusListener(new FocusListener() {
651

    
652
			@Override
653
            public void focusGained(FocusEvent e) {
654
				if (document.get().equals(prompt)) {
655
					textControl.setFont(getViewerFont());
656
					document.set(""); //$NON-NLS-1$
657
				}
658
			}
659

    
660
			@Override
661
            public void focusLost(FocusEvent e) {
662
				if (document.getLength() == 0) {
663
					initEmptyText();
664
				}
665
			}
666

    
667
		});
668
		textControl.addFocusListener(getFocusListener());
669

    
670
		if (document.getLength() == 0) {
671
			textControl.setFont(AbstractUtility
672
					.getFont(Resources.FONT_DEFAULT_PROMPT));
673
			document.set(prompt);
674
		}
675
	}
676

    
677
	abstract protected Font getViewerFont();
678

    
679
	protected void initEmptyText() {
680
		Font defaultFont = AbstractUtility.getFont(Resources.FONT_DEFAULT_PROMPT);
681
		getNameViewer().getTextWidget().setFont(defaultFont);
682

    
683
		getNameViewer().getDocument().set(getEmptyTextPrompt());
684
		placeCursor();
685
	}
686

    
687
	protected void setFocusListener(FocusListener focusListener) {
688
		this.focusListener = focusListener;
689
	}
690

    
691
	private FocusListener getFocusListener() {
692
		return focusListener;
693
	}
694

    
695
	public void setDirty(boolean isDirty) {
696
		if (isDirty) {
697
			getEditor().getManagedForm().dirtyStateChanged();
698
		}
699
		this.isDirty = isDirty;
700
	}
701

    
702
	@Override
703
    public boolean isDirty() {
704
		return isDirty;
705
	}
706

    
707
	public void setMenu() {
708
        getEditor().getMenuService().registerContextMenu(getNameViewer().getTextWidget(), "eu.etaxonomy.taxeditor.editor.popupmenu.nameeditor");
709
	}
710

    
711
	private Control[] draggableControls;
712

    
713
	protected void setDraggableControl(Control[] controls) {
714
		draggableControls = controls;
715
	}
716

    
717
	public void setIsDraggable(boolean draggable) {
718

    
719
		if (draggable) {
720

    
721
			if (draggableControls == null) {
722
				throw new NullPointerException(
723
						"Draggable controls must be set to add draggability"); //$NON-NLS-1$
724
			}
725

    
726
			Transfer[] types = new Transfer[] { CdmDataTransfer.getInstance() };
727
			int operations = DND.DROP_MOVE;
728

    
729
			for (Control draggableControl : draggableControls) {
730
				DragSource dragSource = new DragSource(draggableControl,
731
						operations);
732
				dragSource.setTransfer(types);
733

    
734
				dragSource.addDragListener(new NameEditorDragListenerE4(this));
735
				dragSource.setDragSourceEffect(new NameEditorDragSourceEffect(
736
						control));
737
			}
738
		}
739
	}
740

    
741
	private String nonEditableText;
742

    
743
	ControlListener nonEditableResizeListener = new ControlAdapter() {
744

    
745
		int width = 0;
746

    
747
		@Override
748
		public void controlResized(ControlEvent e) {
749
			if (nonEditableInfoLabel.getBounds().width == width) {
750
				return;
751
			}
752
			width = nonEditableInfoLabel.getBounds().width;
753
			if (nonEditableInfoLabel.getBounds().width > 0) {
754
				nonEditableInfoLabel.setText(Dialog.shortenText(
755
						nonEditableText.toUpperCase(), nonEditableInfoLabel));
756
			}
757
		}
758
	};
759

    
760
	private String nonEditableHoverText;
761

    
762
	private LabelEllipsisListener nonEditableLabelEllipsisListener;
763

    
764
	private T data;
765

    
766
	/**
767
	 * nonEditableInfo is a label displayed underneath a GroupedComposite's
768
	 * input field. For instance, NameComposites display things like name
769
	 * relations, sec. references, etc. here.
770
	 *
771
	 * @param info
772
	 *            the text to display in the label
773
	 * @param append
774
	 *            whether the string should be appended to text that is already
775
	 *            shown in the label
776
	 */
777
	public void setNonEditableInfo(String info, boolean append) {
778
		// TODO non editable info should only be drawn once, when everything
779
		// else is drawn
780
		info = info.toUpperCase();
781

    
782
		if (append) {
783
			nonEditableText += ", " + info; //$NON-NLS-1$
784
			nonEditableHoverText += "\n" + info; //$NON-NLS-1$
785
		} else {
786
			nonEditableText = info;
787
			nonEditableHoverText = info;
788
		}
789

    
790
		if (nonEditableInfoLabel == null) {
791
			nonEditableInfoLabel = getEditor().getToolkit().createLabel(
792
					control, ""); //$NON-NLS-1$
793
			TableWrapData layoutData = new TableWrapData(
794
					TableWrapData.FILL_GRAB, TableWrapData.TOP);
795
			// Set indent to viewer ruler's width
796
			if (getNameViewer().getRulerControl() != null) {
797
				// TODO right justify
798
				layoutData.indent = NameViewerE4.RULER_WIDTH;
799
			}
800
			nonEditableInfoLabel.setLayoutData(layoutData);
801

    
802
			nonEditableLabelEllipsisListener = new LabelEllipsisListener(
803
					nonEditableInfoLabel) {
804
				@Override
805
				public String getLabelText() {
806
					return nonEditableText.toUpperCase();
807
				}
808
			};
809
			nonEditableInfoLabel
810
					.addControlListener(nonEditableLabelEllipsisListener);
811

    
812
			nonEditableInfoHover = new DefaultToolTip(nonEditableInfoLabel);
813
			nonEditableInfoHover.setRespectDisplayBounds(true);
814

    
815
		}
816
		nonEditableInfoHover.setText(nonEditableHoverText);
817
		nonEditableInfoLabel.setText(nonEditableText);
818

    
819
		calculateAnnotations();
820
	}
821

    
822
	@Override
823
    public T getData() {
824
		return data;
825
	}
826

    
827
	public void setData(T data) {
828
		this.data = HibernateProxyHelper.deproxy(data);
829
	}
830

    
831
	/**
832
	 * If the user hitting carriage return should cause something to happen -
833
	 * i.e. the creation of a new composite - call this method and override the
834
	 * method handleSplitText().
835
	 */
836
	protected void createLineBreakListener() {
837
		lineBreakListener = new LineBreakListener() {
838
			@Override
839
			public void handleSplitText(String text) {
840
				AbstractGroupedContainerE4.this.handleSplitText(text);
841
			}
842

    
843
		};
844

    
845
		getNameViewer().getTextWidget().addVerifyListener(lineBreakListener);
846

    
847
	}
848

    
849
	abstract class LabelEllipsisListener extends ControlAdapter {
850

    
851
		private final Label label;
852
		int width = 0;
853

    
854
		LabelEllipsisListener(Label label) {
855
			this.label = label;
856
		}
857

    
858
		abstract public String getLabelText();
859

    
860
		@Override
861
		public void controlResized(ControlEvent e) {
862
			if (label.getBounds().width == width) {
863
				return;
864
			}
865
			width = label.getBounds().width;
866
			if (label.getBounds().width > 0) {
867
				label.setText(TextHelper.shortenText(getLabelText(), label));
868
			}
869
		}
870
	}
871

    
872
	public void storeCursor() {
873
		this.cursorPosition = getNameViewer().getCursorPosition();
874
	}
875

    
876
	/**
877
	 * Puts the cursor to the position it was last seen on or to the end of line
878
	 * if no former position is known.
879
	 */
880
	public void placeCursor() {
881
		if (cursorPosition == 0) {
882
			getNameViewer().setCursorToEOL();
883
		} else {
884
			getNameViewer().setCursorPosition(cursorPosition);
885
		}
886
	}
887

    
888
	public void restoreColor() {
889
		setBackground(backgroundColor);
890
	}
891

    
892
	@Override
893
	public void initialize(IManagedForm form) {
894
		// TODO Auto-generated method stub
895

    
896
	}
897

    
898
	@Override
899
	public void dispose() {
900
		if (getControl() != null) {
901
			setMenu();
902
			getControl().dispose();
903
		}
904
	}
905

    
906
	@Override
907
	public void commit(boolean onSave) {
908
		if (isDirty()) {
909
			persistName();
910
		}
911
	}
912

    
913
	@Override
914
	public boolean setFormInput(Object input) {
915
		return false;
916
	}
917

    
918
	@Override
919
	public void setFocus() {
920
		getNameViewer().getControl().setFocus();
921
	}
922

    
923
	@Override
924
	public boolean isStale() {
925
		return false;
926
	}
927

    
928
	public void setDisabled(boolean disabled) {
929
		setEnabled(!disabled);
930
	}
931

    
932
	public void setEnabled(boolean enabled) {
933
		Color color = enabled ? control.getForeground() : AbstractUtility.getColor(Resources.COLOR_DISABLED_EDITOR);
934

    
935
		getNameViewer().getTextWidget().setEditable(enabled);
936
		getNameViewer().getTextWidget().setForeground(color);
937
	}
938

    
939

    
940
}
(2-2/11)