Mercurial > projects > dwt-addons
annotate dwtx/jface/text/AbstractInformationControlManager.d @ 159:7926b636c282
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Wed, 27 Aug 2008 01:57:58 +0200 |
| parents | a9566845f1cb |
| children | 3678e4f1a766 |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Sean Montgomery, sean_montgomery@comcast.net - https://bugs.eclipse.org/bugs/show_bug.cgi?id=45095 | |
| 11 * Port to the D programming language: | |
| 12 * Frank Benoit <benoit@tionex.de> | |
| 13 *******************************************************************************/ | |
| 14 | |
| 131 | 15 |
| 151 | 16 module dwtx.jface.text.AbstractInformationControlManager; |
| 17 | |
| 131 | 18 import dwtx.jface.text.IDocumentPartitioningListener; // packageimport |
| 19 import dwtx.jface.text.DefaultTextHover; // packageimport | |
| 20 import dwtx.jface.text.AbstractInformationControl; // packageimport | |
| 21 import dwtx.jface.text.TextUtilities; // packageimport | |
| 22 import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport | |
| 23 import dwtx.jface.text.ITextViewerExtension2; // packageimport | |
| 24 import dwtx.jface.text.IDocumentPartitioner; // packageimport | |
| 25 import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport | |
| 26 import dwtx.jface.text.ITextSelection; // packageimport | |
| 27 import dwtx.jface.text.Document; // packageimport | |
| 28 import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport | |
| 29 import dwtx.jface.text.ITextListener; // packageimport | |
| 30 import dwtx.jface.text.BadPartitioningException; // packageimport | |
| 31 import dwtx.jface.text.ITextViewerExtension5; // packageimport | |
| 32 import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport | |
| 33 import dwtx.jface.text.IUndoManager; // packageimport | |
| 34 import dwtx.jface.text.ITextHoverExtension2; // packageimport | |
| 35 import dwtx.jface.text.IRepairableDocument; // packageimport | |
| 36 import dwtx.jface.text.IRewriteTarget; // packageimport | |
| 37 import dwtx.jface.text.DefaultPositionUpdater; // packageimport | |
| 38 import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport | |
| 39 import dwtx.jface.text.TextViewerHoverManager; // packageimport | |
| 40 import dwtx.jface.text.DocumentRewriteSession; // packageimport | |
| 41 import dwtx.jface.text.TextViewer; // packageimport | |
| 42 import dwtx.jface.text.ITextViewerExtension8; // packageimport | |
| 43 import dwtx.jface.text.RegExMessages; // packageimport | |
| 44 import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport | |
| 45 import dwtx.jface.text.ITextOperationTargetExtension; // packageimport | |
| 46 import dwtx.jface.text.IWidgetTokenOwner; // packageimport | |
| 47 import dwtx.jface.text.IViewportListener; // packageimport | |
| 48 import dwtx.jface.text.GapTextStore; // packageimport | |
| 49 import dwtx.jface.text.MarkSelection; // packageimport | |
| 50 import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport | |
| 51 import dwtx.jface.text.IDocumentAdapterExtension; // packageimport | |
| 52 import dwtx.jface.text.IInformationControlExtension; // packageimport | |
| 53 import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport | |
| 54 import dwtx.jface.text.DefaultDocumentAdapter; // packageimport | |
| 55 import dwtx.jface.text.ITextViewerExtension3; // packageimport | |
| 56 import dwtx.jface.text.IInformationControlCreator; // packageimport | |
| 57 import dwtx.jface.text.TypedRegion; // packageimport | |
| 58 import dwtx.jface.text.ISynchronizable; // packageimport | |
| 59 import dwtx.jface.text.IMarkRegionTarget; // packageimport | |
| 60 import dwtx.jface.text.TextViewerUndoManager; // packageimport | |
| 61 import dwtx.jface.text.IRegion; // packageimport | |
| 62 import dwtx.jface.text.IInformationControlExtension2; // packageimport | |
| 63 import dwtx.jface.text.IDocumentExtension4; // packageimport | |
| 64 import dwtx.jface.text.IDocumentExtension2; // packageimport | |
| 65 import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport | |
| 66 import dwtx.jface.text.Assert; // packageimport | |
| 67 import dwtx.jface.text.DefaultInformationControl; // packageimport | |
| 68 import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport | |
| 69 import dwtx.jface.text.DocumentClone; // packageimport | |
| 70 import dwtx.jface.text.DefaultUndoManager; // packageimport | |
| 71 import dwtx.jface.text.IFindReplaceTarget; // packageimport | |
| 72 import dwtx.jface.text.IAutoEditStrategy; // packageimport | |
| 73 import dwtx.jface.text.ILineTrackerExtension; // packageimport | |
| 74 import dwtx.jface.text.IUndoManagerExtension; // packageimport | |
| 75 import dwtx.jface.text.TextSelection; // packageimport | |
| 76 import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport | |
| 77 import dwtx.jface.text.IAutoIndentStrategy; // packageimport | |
| 78 import dwtx.jface.text.IPainter; // packageimport | |
| 79 import dwtx.jface.text.IInformationControl; // packageimport | |
| 80 import dwtx.jface.text.IInformationControlExtension3; // packageimport | |
| 81 import dwtx.jface.text.ITextViewerExtension6; // packageimport | |
| 82 import dwtx.jface.text.IInformationControlExtension4; // packageimport | |
| 83 import dwtx.jface.text.DefaultLineTracker; // packageimport | |
| 84 import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport | |
| 85 import dwtx.jface.text.IRepairableDocumentExtension; // packageimport | |
| 86 import dwtx.jface.text.ITextHover; // packageimport | |
| 87 import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport | |
| 88 import dwtx.jface.text.ILineTracker; // packageimport | |
| 89 import dwtx.jface.text.Line; // packageimport | |
| 90 import dwtx.jface.text.ITextViewerExtension; // packageimport | |
| 91 import dwtx.jface.text.IDocumentAdapter; // packageimport | |
| 92 import dwtx.jface.text.TextEvent; // packageimport | |
| 93 import dwtx.jface.text.BadLocationException; // packageimport | |
| 94 import dwtx.jface.text.AbstractDocument; // packageimport | |
| 95 import dwtx.jface.text.AbstractLineTracker; // packageimport | |
| 96 import dwtx.jface.text.TreeLineTracker; // packageimport | |
| 97 import dwtx.jface.text.ITextPresentationListener; // packageimport | |
| 98 import dwtx.jface.text.Region; // packageimport | |
| 99 import dwtx.jface.text.ITextViewer; // packageimport | |
| 100 import dwtx.jface.text.IDocumentInformationMapping; // packageimport | |
| 101 import dwtx.jface.text.MarginPainter; // packageimport | |
| 102 import dwtx.jface.text.IPaintPositionManager; // packageimport | |
| 103 import dwtx.jface.text.TextPresentation; // packageimport | |
| 104 import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport | |
| 105 import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport | |
| 106 import dwtx.jface.text.ISelectionValidator; // packageimport | |
| 107 import dwtx.jface.text.IDocumentExtension; // packageimport | |
| 108 import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport | |
| 109 import dwtx.jface.text.ConfigurableLineTracker; // packageimport | |
| 110 import dwtx.jface.text.SlaveDocumentEvent; // packageimport | |
| 111 import dwtx.jface.text.IDocumentListener; // packageimport | |
| 112 import dwtx.jface.text.PaintManager; // packageimport | |
| 113 import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport | |
| 114 import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport | |
| 115 import dwtx.jface.text.IDocumentExtension3; // packageimport | |
| 116 import dwtx.jface.text.Position; // packageimport | |
| 117 import dwtx.jface.text.TextMessages; // packageimport | |
| 118 import dwtx.jface.text.CopyOnWriteTextStore; // packageimport | |
| 119 import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport | |
| 120 import dwtx.jface.text.IPositionUpdater; // packageimport | |
| 121 import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport | |
| 122 import dwtx.jface.text.ListLineTracker; // packageimport | |
| 123 import dwtx.jface.text.ITextInputListener; // packageimport | |
| 124 import dwtx.jface.text.BadPositionCategoryException; // packageimport | |
| 125 import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport | |
| 126 import dwtx.jface.text.IInputChangedListener; // packageimport | |
| 127 import dwtx.jface.text.ITextOperationTarget; // packageimport | |
| 128 import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport | |
| 129 import dwtx.jface.text.ITextViewerExtension7; // packageimport | |
| 130 import dwtx.jface.text.IInformationControlExtension5; // packageimport | |
| 131 import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport | |
| 132 import dwtx.jface.text.JFaceTextUtil; // packageimport | |
| 133 import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport | |
| 134 import dwtx.jface.text.TabsToSpacesConverter; // packageimport | |
| 135 import dwtx.jface.text.CursorLinePainter; // packageimport | |
| 136 import dwtx.jface.text.ITextHoverExtension; // packageimport | |
| 137 import dwtx.jface.text.IEventConsumer; // packageimport | |
| 138 import dwtx.jface.text.IDocument; // packageimport | |
| 139 import dwtx.jface.text.IWidgetTokenKeeper; // packageimport | |
| 140 import dwtx.jface.text.DocumentCommand; // packageimport | |
| 141 import dwtx.jface.text.TypedPosition; // packageimport | |
| 142 import dwtx.jface.text.IEditingSupportRegistry; // packageimport | |
| 143 import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport | |
| 144 import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport | |
| 145 import dwtx.jface.text.IEditingSupport; // packageimport | |
| 146 import dwtx.jface.text.IMarkSelection; // packageimport | |
| 147 import dwtx.jface.text.ISlaveDocumentManager; // packageimport | |
| 148 import dwtx.jface.text.DocumentEvent; // packageimport | |
| 149 import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport | |
| 150 import dwtx.jface.text.ITextStore; // packageimport | |
| 151 import dwtx.jface.text.JFaceTextMessages; // packageimport | |
| 152 import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport | |
| 153 import dwtx.jface.text.SequentialRewriteTextStore; // packageimport | |
| 154 import dwtx.jface.text.DocumentRewriteSessionType; // packageimport | |
| 155 import dwtx.jface.text.TextAttribute; // packageimport | |
| 156 import dwtx.jface.text.ITextViewerExtension4; // packageimport | |
| 157 import dwtx.jface.text.ITypedRegion; // packageimport | |
| 158 | |
| 129 | 159 import dwt.dwthelper.utils; |
| 160 | |
| 161 | |
| 162 | |
| 163 | |
| 164 | |
| 165 import dwt.DWT; | |
| 166 import dwt.events.DisposeEvent; | |
| 167 import dwt.events.DisposeListener; | |
| 168 import dwt.graphics.GC; | |
| 169 import dwt.graphics.Point; | |
| 170 import dwt.graphics.Rectangle; | |
| 171 import dwt.widgets.Control; | |
| 172 import dwt.widgets.Display; | |
| 173 import dwt.widgets.Monitor; | |
| 174 import dwtx.core.runtime.Assert; | |
| 175 import dwtx.core.runtime.Platform; | |
| 176 import dwtx.jface.dialogs.IDialogSettings; | |
| 177 import dwtx.jface.internal.text.InformationControlReplacer; | |
| 178 import dwtx.jface.internal.text.InternalAccessor; | |
| 156 | 179 import dwtx.jface.text.ITextViewerExtension8; |
| 129 | 180 import dwtx.jface.util.Geometry; |
| 181 | |
| 182 | |
| 183 /** | |
| 184 * Manages the life cycle, visibility, layout, and contents of an | |
| 185 * {@link dwtx.jface.text.IInformationControl}. This manager can be | |
| 186 * installed on and removed from a control, referred to as the subject control, | |
| 187 * i.e. the one from which the subject of the information to be shown is | |
| 188 * retrieved. Also a manager can be enabled or disabled. An installed and | |
| 189 * enabled manager can be forced to show information in its information control | |
| 190 * using <code>showInformation</code>. An information control manager uses an | |
| 191 * <code>IInformationControlCloser</code> to define the behavior when a | |
| 192 * presented information control must be closed. The disposal of the subject and | |
| 193 * the information control are internally handled by the information control | |
| 194 * manager and are not the responsibility of the information control closer. | |
| 195 * | |
| 196 * @see dwtx.jface.text.IInformationControl | |
| 197 * @since 2.0 | |
| 198 */ | |
| 199 abstract public class AbstractInformationControlManager { | |
| 200 | |
| 201 /** | |
| 202 * An internal class that gives access to internal methods. | |
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203 * |
| 129 | 204 * @since 3.4 |
| 205 */ | |
| 206 class MyInternalAccessor : InternalAccessor { | |
| 207 public IInformationControl getCurrentInformationControl() { | |
| 137 | 208 return this.outer.getCurrentInformationControl(); |
| 129 | 209 } |
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210 |
| 129 | 211 public void setInformationControlReplacer(InformationControlReplacer replacer) { |
| 137 | 212 this.outer.setInformationControlReplacer(replacer); |
| 129 | 213 } |
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214 |
| 129 | 215 public InformationControlReplacer getInformationControlReplacer() { |
| 137 | 216 return this.outer.getInformationControlReplacer(); |
| 129 | 217 } |
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218 |
| 129 | 219 public bool canReplace(IInformationControl control) { |
| 137 | 220 return this.outer.canReplace(control); |
| 129 | 221 } |
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222 |
| 129 | 223 public bool isReplaceInProgress() { |
| 137 | 224 return this.outer.isReplaceInProgress(); |
| 129 | 225 } |
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226 |
| 129 | 227 public void replaceInformationControl(bool takeFocus) { |
| 137 | 228 this.outer.replaceInformationControl(takeFocus); |
| 129 | 229 } |
| 230 | |
| 231 public void cropToClosestMonitor(Rectangle bounds) { | |
| 137 | 232 this.outer.cropToClosestMonitor(bounds); |
| 129 | 233 } |
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234 |
| 129 | 235 public void setHoverEnrichMode(EnrichMode mode) { |
| 236 throw new UnsupportedOperationException("only implemented in AbstractHoverInformationControlManager"); //$NON-NLS-1$ | |
| 237 } | |
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238 |
| 129 | 239 public bool getAllowMouseExit() { |
| 240 throw new UnsupportedOperationException("only implemented in AnnotationBarHoverManager"); //$NON-NLS-1$ | |
| 241 } | |
| 242 } | |
| 243 | |
| 244 /** | |
| 245 * Interface of an information control closer. An information control closer | |
| 246 * monitors its information control and its subject control and closes the | |
| 247 * information control if necessary. | |
| 248 * <p> | |
| 249 * Clients must implement this interface in order to equip an information | |
| 250 * control manager accordingly. | |
| 251 */ | |
| 252 public interface IInformationControlCloser { | |
| 253 | |
| 254 /** | |
| 255 * Sets the closer's subject control. This is the control that parents | |
| 256 * the information control and from which the subject of the information | |
| 257 * to be shown is retrieved. <p> | |
| 258 * Must be called before <code>start</code>. May again be called | |
| 259 * between <code>start</code> and <code>stop</code>. | |
| 260 * | |
| 261 * @param subject the subject control | |
| 262 */ | |
| 263 public void setSubjectControl(Control subject); | |
| 264 | |
| 265 /** | |
| 266 * Sets the closer's information control, the one to close if necessary. <p> | |
| 267 * Must be called before <code>start</code>. May again be called | |
| 268 * between <code>start</code> and <code>stop</code>. | |
| 269 * | |
| 270 * @param control the information control | |
| 271 */ | |
| 272 public void setInformationControl(IInformationControl control); | |
| 273 | |
| 274 /** | |
| 275 * Tells this closer to start monitoring the subject and the information | |
| 276 * control. The presented information is considered valid for the given | |
| 277 * area of the subject control's display. | |
| 278 * | |
| 279 * @param subjectArea the area for which the presented information is valid | |
| 280 */ | |
| 281 public void start(Rectangle subjectArea); | |
| 282 | |
| 283 /** | |
| 284 * Tells this closer to stop monitoring the subject and the information control. | |
| 285 */ | |
| 286 public void stop(); | |
| 287 } | |
| 288 | |
| 289 | |
| 290 | |
| 291 /** | |
| 292 * Constitutes entities to enumerate anchors for the layout of the information control. | |
| 293 */ | |
| 294 public static final class Anchor { | |
| 146 | 295 private const int fFlag; |
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296 private this(int flag) { |
| 129 | 297 fFlag= flag; |
| 298 } | |
| 299 /** | |
| 300 * Returns the DWT direction flag. One of {@link DWT#BOTTOM}, {@link DWT#TOP}, | |
| 301 * {@link DWT#LEFT}, {@link DWT#RIGHT}, {@link DWT#CENTER}, | |
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302 * |
| 129 | 303 * @return the DWT direction flag |
| 304 * @since 3.3 | |
| 305 */ | |
| 306 int getSWTFlag() { | |
| 307 return fFlag; | |
| 308 } | |
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309 |
| 129 | 310 public String toString() { |
| 311 switch (fFlag) { | |
| 312 case DWT.BOTTOM: return "BOTTOM"; //$NON-NLS-1$ | |
| 313 case DWT.TOP: return "TOP"; //$NON-NLS-1$ | |
| 314 case DWT.LEFT: return "LEFT"; //$NON-NLS-1$ | |
| 315 case DWT.RIGHT: return "RIGHT"; //$NON-NLS-1$ | |
| 316 case DWT.CENTER: return "CENTER"; //$NON-NLS-1$ | |
| 317 default: return Integer.toHexString(fFlag); | |
| 318 } | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 /** Internal anchor list. */ | |
| 159 | 323 private static Anchor[] ANCHORS_; |
| 324 private static Anchor[] ANCHORS() { | |
| 325 if( ANCHORS_ is null ) ANCHORS_= [ new Anchor(DWT.TOP), new Anchor(DWT.BOTTOM), new Anchor(DWT.LEFT), new Anchor(DWT.RIGHT) ]; | |
| 326 return ANCHORS_; | |
| 327 } | |
| 328 | |
| 129 | 329 |
| 330 /** Anchor representing the top of the information area */ | |
| 159 | 331 public static Anchor ANCHOR_TOP() { return ANCHORS()[0]; } |
| 129 | 332 /** Anchor representing the bottom of the information area */ |
| 159 | 333 public static Anchor ANCHOR_BOTTOM() { return ANCHORS()[1]; } |
| 129 | 334 /** Anchor representing the left side of the information area */ |
| 159 | 335 public static Anchor ANCHOR_LEFT() { return ANCHORS()[2]; } |
| 129 | 336 /** Anchor representing the right side of the information area */ |
| 159 | 337 public static Anchor ANCHOR_RIGHT() { return ANCHORS()[3]; } |
| 129 | 338 /** |
| 339 * Anchor representing the middle of the subject control | |
| 340 * @since 2.1 | |
| 341 */ | |
| 146 | 342 public const static Anchor ANCHOR_GLOBAL= new Anchor(DWT.CENTER); |
| 129 | 343 |
| 344 /** | |
| 345 * Dialog store constant for the location's x-coordinate. | |
| 346 * @since 3.0 | |
| 347 */ | |
| 147 | 348 public static const String STORE_LOCATION_X= "location.x"; //$NON-NLS-1$ |
| 129 | 349 /** |
| 350 * Dialog store constant for the location's y-coordinate. | |
| 351 * @since 3.0 | |
| 352 */ | |
| 147 | 353 public static const String STORE_LOCATION_Y= "location.y"; //$NON-NLS-1$ |
| 129 | 354 /** |
| 355 * Dialog store constant for the size's width. | |
| 356 * @since 3.0 | |
| 357 */ | |
| 147 | 358 public static const String STORE_SIZE_WIDTH= "size.width"; //$NON-NLS-1$ |
| 129 | 359 /** |
| 360 * Dialog store constant for the size's height. | |
| 361 * @since 3.0 | |
| 362 */ | |
| 147 | 363 public static const String STORE_SIZE_HEIGHT= "size.height"; //$NON-NLS-1$ |
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364 |
| 129 | 365 /** |
| 366 * Tells whether this class and its subclasses are in debug mode. | |
| 367 * <p> | |
| 368 * Subclasses may use this. | |
| 369 * </p> | |
| 370 * @since 3.4 | |
| 371 */ | |
| 159 | 372 private static bool DEBUG_; |
| 373 private static bool DEBUG_init = false; | |
| 374 protected static bool DEBUG(){ | |
| 375 if( !DEBUG_init ){ | |
| 376 DEBUG_init = true; | |
| 377 DEBUG_ = "true".equalsIgnoreCase(Platform.getDebugOption("dwtx.jface.text/debug/AbstractInformationControlManager")); //$NON-NLS-1$//$NON-NLS-2$ | |
| 378 } | |
| 379 return DEBUG_; | |
| 380 } | |
| 129 | 381 |
| 382 | |
| 383 /** The subject control of the information control */ | |
| 384 private Control fSubjectControl; | |
| 385 | |
| 386 /** The display area for which the information to be presented is valid */ | |
| 387 private Rectangle fSubjectArea; | |
| 388 | |
| 389 /** The information to be presented */ | |
| 390 private Object fInformation; | |
| 391 | |
| 392 /** Indicates whether the information control takes focus when visible */ | |
| 393 private bool fTakesFocusWhenVisible= false; | |
| 394 | |
| 395 /** | |
| 396 * The information control. | |
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397 * |
| 129 | 398 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 399 * compatibility reasons. | |
| 400 */ | |
| 401 protected IInformationControl fInformationControl; | |
| 402 | |
| 403 /** | |
| 404 * The information control creator. | |
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405 * |
| 129 | 406 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 407 * compatibility reasons. | |
| 408 */ | |
| 409 protected IInformationControlCreator fInformationControlCreator; | |
| 410 | |
| 411 /** | |
| 412 * The information control closer. | |
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413 * |
| 129 | 414 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 415 * compatibility reasons. | |
| 416 */ | |
| 417 protected IInformationControlCloser fInformationControlCloser; | |
| 418 | |
| 419 /** | |
| 420 * Indicates that the information control has been disposed. | |
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421 * |
| 129 | 422 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 423 * compatibility reasons. | |
| 424 */ | |
| 425 protected bool fDisposed= false; | |
| 426 | |
| 427 /** | |
| 428 * The information control replacer to be used when this information control | |
| 429 * needs to be replaced with another information control. | |
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430 * |
| 129 | 431 * @since 3.4 |
| 432 */ | |
| 433 private InformationControlReplacer fInformationControlReplacer; | |
| 434 | |
| 435 /** Indicates the enable state of this manager */ | |
| 436 private bool fEnabled= false; | |
| 437 | |
| 438 /** Cached, computed size constraints of the information control in points */ | |
| 439 private Point fSizeConstraints; | |
| 440 | |
| 441 /** The vertical margin when laying out the information control */ | |
| 442 private int fMarginY= 5; | |
| 443 | |
| 444 /** The horizontal margin when laying out the information control */ | |
| 445 private int fMarginX= 5; | |
| 446 | |
| 447 /** The width constraint of the information control in characters */ | |
| 448 private int fWidthConstraint= 60; | |
| 449 | |
| 450 /** The height constraint of the information control in characters */ | |
| 451 private int fHeightConstraint= 6; | |
| 452 | |
| 453 /** Indicates whether the size constraints should be enforced as minimal control size */ | |
| 454 private bool fEnforceAsMinimalSize= false; | |
| 455 | |
| 456 /** Indicates whether the size constraints should be enforced as maximal control size */ | |
| 457 private bool fEnforceAsMaximalSize= false; | |
| 458 | |
| 459 /** The anchor for laying out the information control in relation to the subject control */ | |
| 159 | 460 private Anchor fAnchor; |
| 129 | 461 |
| 462 /** | |
| 463 * The anchor sequence used to layout the information control if the original anchor | |
| 464 * can not be used because the information control would not fit in the display client area. | |
| 465 * <p> | |
| 466 * The fallback anchor for a given anchor is the one that comes directly after the given anchor or | |
| 467 * is the first one in the sequence if the given anchor is the last one in the sequence. | |
| 468 * <p> | |
| 469 * </p> | |
| 470 * Note: This sequence is ignored if the original anchor is not contained in this sequence. | |
| 471 * </p> | |
| 472 * | |
| 473 * @see #fAnchor | |
| 474 */ | |
| 159 | 475 private Anchor[] fFallbackAnchors; |
| 129 | 476 /** |
| 477 * The custom information control creator. | |
| 478 * @since 3.0 | |
| 479 */ | |
| 156 | 480 private /+volatile+/ IInformationControlCreator fCustomInformationControlCreator; |
| 129 | 481 |
| 482 /** | |
| 483 * Tells whether a custom information control is in use. | |
| 484 * @since 3.0 | |
| 485 */ | |
| 486 private bool fIsCustomInformationControl= false; | |
| 487 | |
| 488 /** | |
| 489 * The dialog settings for the control's bounds. | |
| 490 * @since 3.0 | |
| 491 */ | |
| 492 private IDialogSettings fDialogSettings; | |
| 493 | |
| 494 /** | |
| 495 * Tells whether the control's location should be read | |
| 496 * from the dialog settings and whether the last | |
| 497 * valid control's size is stored back into the settings. | |
| 498 * | |
| 499 * @since 3.0 | |
| 500 */ | |
| 501 private bool fIsRestoringLocation; | |
| 502 | |
| 503 /** | |
| 504 * Tells whether the control's size should be read | |
| 505 * from the dialog settings and whether the last | |
| 506 * valid control's size is stored back into the settings. | |
| 507 * | |
| 508 * @since 3.0 | |
| 509 */ | |
| 510 private bool fIsRestoringSize; | |
| 511 | |
| 512 /** | |
| 513 * The dispose listener on the subject control. | |
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514 * |
| 129 | 515 * @since 3.1 |
| 516 */ | |
| 517 private DisposeListener fSubjectControlDisposeListener; | |
| 518 | |
| 519 | |
| 520 /** | |
| 521 * Creates a new information control manager using the given information control creator. | |
| 522 * By default the following configuration is given: | |
| 523 * <ul> | |
| 524 * <li> enabled is false | |
| 525 * <li> horizontal margin is 5 points | |
| 526 * <li> vertical margin is 5 points | |
| 527 * <li> width constraint is 60 characters | |
| 528 * <li> height constraint is 6 characters | |
| 529 * <li> enforce constraints as minimal size is false | |
| 530 * <li> enforce constraints as maximal size is false | |
| 531 * <li> layout anchor is ANCHOR_BOTTOM | |
| 532 * <li> fall back anchors is { ANCHOR_TOP, ANCHOR_BOTTOM, ANCHOR_LEFT, ANCHOR_RIGHT, ANCHOR_GLOBAL } | |
| 533 * <li> takes focus when visible is false | |
| 534 * </ul> | |
| 535 * | |
| 536 * @param creator the information control creator | |
| 537 */ | |
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538 protected this(IInformationControlCreator creator) { |
| 159 | 539 fAnchor= ANCHOR_BOTTOM(); |
| 540 fFallbackAnchors= ANCHORS(); | |
| 129 | 541 Assert.isNotNull(creator); |
| 542 fInformationControlCreator= creator; | |
| 543 } | |
| 544 | |
| 545 /** | |
| 546 * Computes the information to be displayed and the area in which the computed | |
| 547 * information is valid. Implementation of this method must finish their computation | |
| 548 * by setting the computation results using <code>setInformation</code>. | |
| 549 */ | |
| 550 abstract protected void computeInformation(); | |
| 551 | |
| 552 /** | |
| 553 * Sets the parameters of the information to be displayed. These are the information itself and | |
| 554 * the area for which the given information is valid. This so called subject area is a graphical | |
| 555 * region of the information control's subject control. This method calls <code>presentInformation()</code> | |
| 556 * to trigger the presentation of the computed information. | |
| 557 * | |
| 558 * @param information the information, or <code>null</code> if none is available | |
| 559 * @param subjectArea the subject area, or <code>null</code> if none is available | |
| 560 */ | |
| 561 protected final void setInformation(String information, Rectangle subjectArea) { | |
| 134 | 562 setInformation(cast(Object)information, subjectArea); |
| 129 | 563 } |
| 564 | |
| 565 /** | |
| 566 * Sets the parameters of the information to be displayed. These are the information itself and | |
| 567 * the area for which the given information is valid. This so called subject area is a graphical | |
| 568 * region of the information control's subject control. This method calls <code>presentInformation()</code> | |
| 569 * to trigger the presentation of the computed information. | |
| 570 * | |
| 571 * @param information the information, or <code>null</code> if none is available | |
| 572 * @param subjectArea the subject area, or <code>null</code> if none is available | |
| 573 * @since 2.1 | |
| 574 */ | |
| 575 protected final void setInformation(Object information, Rectangle subjectArea) { | |
| 576 fInformation= information; | |
| 577 fSubjectArea= subjectArea; | |
| 578 presentInformation(); | |
| 579 } | |
| 580 | |
| 581 /** | |
| 582 * Sets the information control closer for this manager. | |
| 583 * | |
| 584 * @param closer the information control closer for this manager | |
| 585 */ | |
| 586 protected void setCloser(IInformationControlCloser closer) { | |
| 587 fInformationControlCloser= closer; | |
| 588 } | |
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589 |
| 129 | 590 /** |
| 591 * Sets the information control replacer for this manager and disposes the | |
| 592 * old one if set. | |
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593 * |
| 129 | 594 * @param replacer the information control replacer for this manager, or |
| 595 * <code>null</code> if no information control replacing should | |
| 596 * take place | |
| 597 * @since 3.4 | |
| 598 */ | |
| 599 void setInformationControlReplacer(InformationControlReplacer replacer) { | |
| 600 if (fInformationControlReplacer !is null) | |
| 601 fInformationControlReplacer.dispose(); | |
| 602 fInformationControlReplacer= replacer; | |
| 603 } | |
| 604 | |
| 605 /** | |
| 606 * Returns the current information control replacer or <code>null</code> if none has been installed. | |
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607 * |
| 129 | 608 * @return the current information control replacer or <code>null</code> if none has been installed |
| 609 * @since 3.4 | |
| 610 */ | |
| 611 InformationControlReplacer getInformationControlReplacer() { | |
| 612 return fInformationControlReplacer; | |
| 613 } | |
| 614 | |
| 615 /** | |
| 616 * Returns whether an information control replacer has been installed. | |
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617 * |
| 129 | 618 * @return whether an information control replacer has been installed |
| 619 * @since 3.4 | |
| 620 */ | |
| 621 bool hasInformationControlReplacer() { | |
| 622 return fInformationControlReplacer !is null; | |
| 623 } | |
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624 |
| 129 | 625 /** |
| 626 * Tests whether the given information control is replaceable. | |
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627 * |
| 129 | 628 * @param iControl information control or <code>null</code> if none |
| 629 * @return <code>true</code> if information control is replaceable, <code>false</code> otherwise | |
| 630 * @since 3.4 | |
| 631 */ | |
| 632 bool canReplace(IInformationControl iControl) { | |
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633 return cast(IInformationControlExtension3)iControl |
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634 && cast(IInformationControlExtension5)iControl |
| 134 | 635 && (cast(IInformationControlExtension5) iControl).getInformationPresenterControlCreator() !is null; |
| 129 | 636 } |
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637 |
| 129 | 638 /** |
| 639 * Returns the current information control, or <code>null</code> if none. | |
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640 * |
| 129 | 641 * @return the current information control, or <code>null</code> if none |
| 642 * @since 3.4 | |
| 643 */ | |
| 644 IInformationControl getCurrentInformationControl() { | |
| 645 return fInformationControl; | |
| 646 } | |
| 647 | |
| 648 /** | |
| 649 * Tells whether this manager's information control is currently being replaced. | |
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650 * |
| 129 | 651 * @return <code>true</code> if a replace is in progress |
| 652 * @since 3.4 | |
| 653 */ | |
| 654 bool isReplaceInProgress() { | |
| 655 return fInformationControlReplacer !is null && fInformationControlReplacer.isReplacing(); | |
| 656 } | |
| 657 | |
| 658 /** | |
| 659 * Sets the horizontal and vertical margin to be used when laying out the | |
| 660 * information control relative to the subject control. | |
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661 * |
| 129 | 662 * @param xMargin the x-margin |
| 663 * @param yMargin the y-Margin | |
| 664 */ | |
| 665 public void setMargins(int xMargin, int yMargin) { | |
| 666 fMarginX= xMargin; | |
| 667 fMarginY= yMargin; | |
| 668 } | |
| 669 | |
| 670 /** | |
| 671 * Sets the width- and height constraints of the information control. | |
| 672 * | |
| 673 * @param widthInChar the width constraint in number of characters | |
| 674 * @param heightInChar the height constrain in number of characters | |
| 675 * @param enforceAsMinimalSize indicates whether the constraints describe the minimal allowed size of the control | |
| 676 * @param enforceAsMaximalSize indicates whether the constraints describe the maximal allowed size of the control | |
| 677 */ | |
| 678 public void setSizeConstraints(int widthInChar, int heightInChar, bool enforceAsMinimalSize, bool enforceAsMaximalSize) { | |
| 679 fSizeConstraints= null; | |
| 680 fWidthConstraint= widthInChar; | |
| 681 fHeightConstraint= heightInChar; | |
| 682 fEnforceAsMinimalSize= enforceAsMinimalSize; | |
| 683 fEnforceAsMaximalSize= enforceAsMaximalSize; | |
| 684 | |
| 685 } | |
| 686 | |
| 687 /** | |
| 688 * Tells this information control manager to open the information | |
| 689 * control with the values contained in the given dialog settings | |
| 690 * and to store the control's last valid size in the given dialog | |
| 691 * settings. | |
| 692 * <p> | |
| 693 * Note: This API is only valid if the information control implements | |
| 694 * {@link IInformationControlExtension3}. Not following this restriction | |
| 695 * will later result in an {@link UnsupportedOperationException}. | |
| 696 * </p> | |
| 697 * <p> | |
| 698 * The constants used to store the values are: | |
| 699 * <ul> | |
| 700 * <li>{@link AbstractInformationControlManager#STORE_LOCATION_X}</li> | |
| 701 * <li>{@link AbstractInformationControlManager#STORE_LOCATION_Y}</li> | |
| 702 * <li>{@link AbstractInformationControlManager#STORE_SIZE_WIDTH}</li> | |
| 703 * <li>{@link AbstractInformationControlManager#STORE_SIZE_HEIGHT}</li> | |
| 704 * </ul> | |
| 705 * </p> | |
| 706 * | |
| 707 * @param dialogSettings | |
| 708 * @param restoreLocation <code>true</code> iff the location is must be (re-)stored | |
| 709 * @param restoreSize <code>true</code>iff the size is (re-)stored | |
| 710 * @since 3.0 | |
| 711 */ | |
| 712 public void setRestoreInformationControlBounds(IDialogSettings dialogSettings, bool restoreLocation, bool restoreSize) { | |
| 713 Assert.isTrue(dialogSettings !is null && (restoreLocation || restoreSize)); | |
| 714 fDialogSettings= dialogSettings; | |
| 715 fIsRestoringLocation= restoreLocation; | |
| 716 fIsRestoringSize= restoreSize; | |
| 717 } | |
| 718 | |
| 719 /** | |
| 720 * Sets the anchor used for laying out the information control relative to the | |
| 721 * subject control. E.g, using <code>ANCHOR_TOP</code> indicates that the | |
| 722 * information control is position above the area for which the information to | |
| 723 * be displayed is valid. | |
| 724 * | |
| 725 * @param anchor the layout anchor | |
| 726 */ | |
| 727 public void setAnchor(Anchor anchor) { | |
| 728 fAnchor= anchor; | |
| 729 } | |
| 730 | |
| 731 /** | |
| 732 * Sets the anchors fallback sequence used to layout the information control if the original | |
| 733 * anchor can not be used because the information control would not fit in the display client | |
| 734 * area. | |
| 735 * <p> | |
| 736 * The fallback anchor for a given anchor is the one that comes directly after the given anchor or | |
| 737 * is the first one in the sequence if the given anchor is the last one in the sequence. | |
| 738 * <p> | |
| 739 * </p> | |
| 740 * Note: This sequence is ignored if the original anchor is not contained in this list. | |
| 741 * </p> | |
| 742 * | |
| 743 * @param fallbackAnchors the array with the anchor fallback sequence | |
| 744 * @see #setAnchor(AbstractInformationControlManager.Anchor) | |
| 745 */ | |
| 746 public void setFallbackAnchors(Anchor[] fallbackAnchors) { | |
| 747 if (fallbackAnchors !is null) { | |
| 748 fFallbackAnchors= new Anchor[fallbackAnchors.length]; | |
| 749 System.arraycopy(fallbackAnchors, 0, fFallbackAnchors, 0, fallbackAnchors.length); | |
| 750 } else | |
| 751 fFallbackAnchors= null; | |
| 752 } | |
| 753 | |
| 754 /** | |
| 755 * Sets the temporary custom control creator, overriding this manager's default information control creator. | |
| 756 * | |
| 757 * @param informationControlCreator the creator, possibly <code>null</code> | |
| 758 * @since 3.0 | |
| 759 */ | |
| 760 protected void setCustomInformationControlCreator(IInformationControlCreator informationControlCreator) { | |
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761 if (informationControlCreator !is null && cast(IInformationControlCreatorExtension)fCustomInformationControlCreator) { |
| 134 | 762 IInformationControlCreatorExtension extension= cast(IInformationControlCreatorExtension) fCustomInformationControlCreator; |
| 129 | 763 if (extension.canReplace(informationControlCreator)) |
| 764 return; | |
| 765 } | |
| 766 fCustomInformationControlCreator= informationControlCreator; | |
| 767 } | |
| 768 | |
| 769 /** | |
| 770 * Tells the manager whether it should set the focus to the information control when made visible. | |
| 771 * | |
| 772 * @param takesFocus <code>true</code> if information control should take focus when made visible | |
| 773 */ | |
| 774 public void takesFocusWhenVisible(bool takesFocus) { | |
| 775 fTakesFocusWhenVisible= takesFocus; | |
| 776 } | |
| 777 | |
| 778 /** | |
| 779 * Handles the disposal of the subject control. By default, the information control | |
| 780 * is disposed by calling <code>disposeInformationControl</code>. Subclasses may extend | |
| 781 * this method. | |
| 782 */ | |
| 783 protected void handleSubjectControlDisposed() { | |
| 784 disposeInformationControl(); | |
| 785 } | |
| 786 | |
| 787 /** | |
| 788 * Installs this manager on the given control. The control is now taking the role of | |
| 789 * the subject control. This implementation sets the control also as the information | |
| 790 * control closer's subject control and automatically enables this manager. | |
| 791 * | |
| 792 * @param subjectControl the subject control | |
| 793 */ | |
| 794 public void install(Control subjectControl) { | |
| 795 if (fSubjectControl !is null && !fSubjectControl.isDisposed() && fSubjectControlDisposeListener !is null) | |
| 796 fSubjectControl.removeDisposeListener(fSubjectControlDisposeListener); | |
| 797 | |
| 798 fSubjectControl= subjectControl; | |
| 799 | |
| 800 if (fSubjectControl !is null) | |
| 801 fSubjectControl.addDisposeListener(getSubjectControlDisposeListener()); | |
| 802 | |
| 803 if (fInformationControlCloser !is null) | |
| 804 fInformationControlCloser.setSubjectControl(subjectControl); | |
| 805 | |
| 806 setEnabled(true); | |
| 807 fDisposed= false; | |
| 808 } | |
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809 |
| 129 | 810 /** |
| 811 * Returns the dispose listener which gets added | |
| 812 * to the subject control. | |
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813 * |
| 129 | 814 * @return the dispose listener |
| 815 * @since 3.1 | |
| 816 */ | |
| 817 private DisposeListener getSubjectControlDisposeListener() { | |
| 818 if (fSubjectControlDisposeListener is null) { | |
| 135 | 819 fSubjectControlDisposeListener= new class() DisposeListener { |
| 129 | 820 public void widgetDisposed(DisposeEvent e) { |
| 821 handleSubjectControlDisposed(); | |
| 822 } | |
| 823 }; | |
| 824 } | |
| 825 return fSubjectControlDisposeListener; | |
| 826 } | |
| 827 | |
| 828 /** | |
| 829 * Returns the subject control of this manager/information control. | |
| 830 * | |
| 831 * @return the subject control | |
| 832 */ | |
| 833 protected Control getSubjectControl() { | |
| 834 return fSubjectControl; | |
| 835 } | |
| 836 | |
| 837 /** | |
| 838 * Returns the actual subject area. | |
| 839 * | |
| 840 * @return the actual subject area | |
| 841 */ | |
| 842 protected Rectangle getSubjectArea() { | |
| 843 return fSubjectArea; | |
| 844 } | |
| 845 | |
| 846 /** | |
| 847 * Sets the enable state of this manager. | |
| 848 * | |
| 849 * @param enabled the enable state | |
| 850 * @deprecated visibility will be changed to protected | |
| 851 */ | |
| 852 public void setEnabled(bool enabled) { | |
| 853 fEnabled= enabled; | |
| 854 } | |
| 855 | |
| 856 /** | |
| 857 * Returns whether this manager is enabled or not. | |
| 858 * | |
| 859 * @return <code>true</code> if this manager is enabled otherwise <code>false</code> | |
| 860 */ | |
| 861 protected bool isEnabled() { | |
| 862 return fEnabled; | |
| 863 } | |
| 864 | |
| 865 /** | |
| 866 * Computes the size constraints of the information control in points based on the | |
| 867 * default font of the given subject control as well as the size constraints in character | |
| 868 * width. | |
| 869 * | |
| 870 * @param subjectControl the subject control | |
| 871 * @param informationControl the information control whose size constraints are computed | |
| 872 * @return the computed size constraints in points | |
| 873 */ | |
| 874 protected Point computeSizeConstraints(Control subjectControl, IInformationControl informationControl) { | |
| 875 | |
| 876 if (fSizeConstraints is null) { | |
| 138 | 877 if ( cast(IInformationControlExtension5)informationControl ) { |
| 134 | 878 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) informationControl; |
| 129 | 879 fSizeConstraints= iControl5.computeSizeConstraints(fWidthConstraint, fHeightConstraint); |
| 880 if (fSizeConstraints !is null) | |
| 881 return Geometry.copy(fSizeConstraints); | |
| 882 } | |
| 883 if (subjectControl is null) | |
| 884 return null; | |
| 885 | |
| 886 GC gc= new GC(subjectControl); | |
| 887 gc.setFont(subjectControl.getFont()); | |
| 888 int width= gc.getFontMetrics().getAverageCharWidth(); | |
| 889 int height = gc.getFontMetrics().getHeight(); | |
| 890 gc.dispose(); | |
| 891 | |
| 892 fSizeConstraints= new Point (fWidthConstraint * width, fHeightConstraint * height); | |
| 893 } | |
| 894 | |
| 895 return new Point(fSizeConstraints.x, fSizeConstraints.y); | |
| 896 } | |
| 897 | |
| 898 /** | |
| 899 * Computes the size constraints of the information control in points. | |
| 900 * | |
| 901 * @param subjectControl the subject control | |
| 902 * @param subjectArea the subject area | |
| 903 * @param informationControl the information control whose size constraints are computed | |
| 904 * @return the computed size constraints in points | |
| 905 * @since 3.0 | |
| 906 */ | |
| 907 protected Point computeSizeConstraints(Control subjectControl, Rectangle subjectArea, IInformationControl informationControl) { | |
| 908 return computeSizeConstraints(subjectControl, informationControl); | |
| 909 } | |
| 910 | |
| 911 /** | |
| 912 * Handles the disposal of the information control. By default, the information | |
| 913 * control closer is stopped. | |
| 914 */ | |
| 915 protected void handleInformationControlDisposed() { | |
| 916 | |
| 917 storeInformationControlBounds(); | |
| 918 | |
| 138 | 919 if ( cast(IInformationControlExtension5)fInformationControl ) |
| 129 | 920 fSizeConstraints= null; |
| 921 fInformationControl= null; | |
| 922 if (fInformationControlCloser !is null) { | |
| 923 fInformationControlCloser.setInformationControl(null); //XXX: null is against the spec | |
| 924 fInformationControlCloser.stop(); | |
| 925 } | |
| 926 } | |
| 927 | |
| 928 /** | |
| 929 * Returns the information control. If the information control has not been created yet, | |
| 930 * it is automatically created. | |
| 931 * | |
| 932 * @return the information control | |
| 933 */ | |
| 934 protected IInformationControl getInformationControl() { | |
| 935 | |
| 936 if (fDisposed) | |
| 937 return fInformationControl; | |
| 938 | |
| 939 IInformationControlCreator creator= null; | |
| 940 | |
| 941 if (fCustomInformationControlCreator is null) { | |
| 942 creator= fInformationControlCreator; | |
| 943 if (fIsCustomInformationControl && fInformationControl !is null) { | |
| 138 | 944 if ( cast(IInformationControlExtension5)fInformationControl ) |
| 129 | 945 fSizeConstraints= null; |
| 946 fInformationControl.dispose(); | |
| 947 fInformationControl= null; | |
| 948 } | |
| 949 fIsCustomInformationControl= false; | |
| 950 | |
| 951 } else { | |
| 952 | |
| 953 creator= fCustomInformationControlCreator; | |
| 138 | 954 if ( cast(IInformationControlCreatorExtension)creator ) { |
| 134 | 955 IInformationControlCreatorExtension extension= cast(IInformationControlCreatorExtension) creator; |
| 129 | 956 if (fInformationControl !is null && extension.canReuse(fInformationControl)) |
| 957 return fInformationControl; | |
| 958 } | |
| 959 if (fInformationControl !is null) { | |
| 138 | 960 if ( cast(IInformationControlExtension5)fInformationControl ) |
| 129 | 961 fSizeConstraints= null; |
| 962 fInformationControl.dispose(); | |
| 963 fInformationControl= null; | |
| 964 } | |
| 965 fIsCustomInformationControl= true; | |
| 966 } | |
| 967 | |
| 968 if (fInformationControl is null) { | |
| 969 fInformationControl= creator.createInformationControl(fSubjectControl.getShell()); | |
| 135 | 970 fInformationControl.addDisposeListener(new class() DisposeListener { |
| 129 | 971 public void widgetDisposed(DisposeEvent e) { |
| 972 handleInformationControlDisposed(); | |
| 973 } | |
| 974 }); | |
| 975 | |
| 976 if (fInformationControlCloser !is null) | |
| 977 fInformationControlCloser.setInformationControl(fInformationControl); | |
| 978 } | |
| 979 | |
| 980 return fInformationControl; | |
| 981 } | |
| 982 | |
| 983 /** | |
| 984 * Computes the display location of the information control. The location is computed | |
| 985 * considering the given subject area, the anchor at the subject area, and the | |
| 986 * size of the information control. This method does not care about whether the information | |
| 987 * control would be completely visible when placed at the result location. | |
| 988 * | |
| 989 * @param subjectArea the subject area | |
| 990 * @param controlSize the size of the information control | |
| 991 * @param anchor the anchor at the subject area | |
| 992 * @return the display location of the information control | |
| 993 */ | |
| 994 protected Point computeLocation(Rectangle subjectArea, Point controlSize, Anchor anchor) { | |
| 995 int xShift= 0; | |
| 996 int yShift= 0; | |
| 997 | |
| 998 switch (anchor.getSWTFlag()) { | |
| 999 case DWT.CENTER: | |
| 1000 Point subjectControlSize= fSubjectControl.getSize(); | |
| 1001 Point location= new Point(subjectControlSize.x / 2, subjectControlSize.y / 2); | |
| 1002 location.x -= (controlSize.x / 2); | |
| 1003 location.y -= (controlSize.y / 2); | |
| 1004 return fSubjectControl.toDisplay(location); | |
| 1005 case DWT.BOTTOM: | |
| 1006 yShift= subjectArea.height + fMarginY; | |
| 1007 break; | |
| 1008 case DWT.RIGHT: | |
| 1009 xShift= fMarginX + subjectArea.width; | |
| 1010 break; | |
| 1011 case DWT.TOP: | |
| 1012 yShift= -controlSize.y - fMarginY; | |
| 1013 break; | |
| 1014 case DWT.LEFT: | |
| 1015 xShift= -controlSize.x - fMarginX; | |
| 1016 break; | |
| 1017 } | |
| 1018 | |
| 1019 bool isRTL= fSubjectControl !is null && (fSubjectControl.getStyle() & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1020 if (isRTL) | |
| 1021 xShift += controlSize.x; | |
| 1022 | |
| 1023 return fSubjectControl.toDisplay(new Point(subjectArea.x + xShift, subjectArea.y + yShift)); | |
| 1024 } | |
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1025 |
| 129 | 1026 /** |
| 1027 * Computes the area available for an information control given an anchor and the subject area | |
| 1028 * within <code>bounds</code>. | |
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1029 * |
| 129 | 1030 * @param subjectArea the subject area |
| 1031 * @param bounds the bounds | |
| 1032 * @param anchor the anchor at the subject area | |
| 1033 * @return the area available at the given anchor relative to the subject area, confined to the | |
| 1034 * monitor's client area | |
| 1035 * @since 3.3 | |
| 1036 */ | |
| 1037 protected Rectangle computeAvailableArea(Rectangle subjectArea, Rectangle bounds, Anchor anchor) { | |
| 1038 Rectangle area; | |
| 1039 switch (anchor.getSWTFlag()) { | |
| 1040 case DWT.CENTER: | |
| 1041 area= bounds; | |
| 1042 break; | |
| 1043 case DWT.BOTTOM: | |
| 1044 int y= subjectArea.y + subjectArea.height + fMarginY; | |
| 1045 area= new Rectangle(bounds.x, y, bounds.width, bounds.y + bounds.height - y); | |
| 1046 break; | |
| 1047 case DWT.RIGHT: | |
| 1048 int x= subjectArea.x + subjectArea.width + fMarginX; | |
| 1049 area= new Rectangle(x, bounds.y, bounds.x + bounds.width - x, bounds.height); | |
| 1050 break; | |
| 1051 case DWT.TOP: | |
| 1052 area= new Rectangle(bounds.x, bounds.y, bounds.width, subjectArea.y - bounds.y - fMarginY); | |
| 1053 break; | |
| 1054 case DWT.LEFT: | |
| 1055 area= new Rectangle(bounds.x, bounds.y, subjectArea.x - bounds.x - fMarginX, bounds.height); | |
| 1056 break; | |
| 1057 default: | |
| 1058 Assert.isLegal(false); | |
| 1059 return null; | |
| 1060 } | |
| 1061 | |
| 1062 // Don't return negative areas if the subjectArea overlaps with the monitor bounds. | |
| 1063 area.intersect(bounds); | |
| 1064 return area; | |
| 1065 } | |
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1066 |
| 129 | 1067 /** |
| 1068 * Checks whether a control of the given size at the given location would be completely visible | |
| 1069 * in the given display area when laid out by using the given anchor. If not, this method tries | |
| 1070 * to shift the control orthogonal to the direction given by the anchor to make it visible. If possible | |
| 1071 * it updates the location.<p> | |
| 1072 * This method returns <code>true</code> if the potentially updated position results in a | |
| 1073 * completely visible control, or <code>false</code> otherwise. | |
| 1074 * | |
| 1075 * | |
| 1076 * @param location the location of the control | |
| 1077 * @param size the size of the control | |
| 1078 * @param displayArea the display area in which the control should be visible | |
| 1079 * @param anchor anchor for lying out the control | |
| 1080 * @return <code>true</code>if the updated location is useful | |
| 1081 */ | |
| 1082 protected bool updateLocation(Point location, Point size, Rectangle displayArea, Anchor anchor) { | |
| 1083 | |
| 1084 int displayLowerRightX= displayArea.x + displayArea.width; | |
| 1085 int displayLowerRightY= displayArea.y + displayArea.height; | |
| 1086 int lowerRightX= location.x + size.x; | |
| 1087 int lowerRightY= location.y + size.y; | |
| 1088 | |
| 1089 if (ANCHOR_BOTTOM is anchor || ANCHOR_TOP is anchor) { | |
| 1090 | |
| 1091 if (ANCHOR_BOTTOM is anchor) { | |
| 1092 if (lowerRightY > displayLowerRightY) | |
| 1093 return false; | |
| 1094 } else { | |
| 1095 if (location.y < displayArea.y) | |
| 1096 return false; | |
| 1097 } | |
| 1098 | |
| 1099 if (lowerRightX > displayLowerRightX) | |
| 1100 location.x= location.x - (lowerRightX - displayLowerRightX); | |
| 1101 | |
| 1102 return (location.x >= displayArea.x && location.y >= displayArea.y); | |
| 1103 | |
| 1104 } else if (ANCHOR_RIGHT is anchor || ANCHOR_LEFT is anchor) { | |
| 1105 | |
| 1106 if (ANCHOR_RIGHT is anchor) { | |
| 1107 if (lowerRightX > displayLowerRightX) | |
| 1108 return false; | |
| 1109 } else { | |
| 1110 if (location.x < displayArea.x) | |
| 1111 return false; | |
| 1112 } | |
| 1113 | |
| 1114 if (lowerRightY > displayLowerRightY) | |
| 1115 location.y= location.y - (lowerRightY - displayLowerRightY); | |
| 1116 | |
| 1117 return (location.x >= displayArea.x && location.y >= displayArea.y); | |
| 1118 | |
| 1119 } else if (ANCHOR_GLOBAL is anchor) { | |
| 1120 | |
| 1121 if (lowerRightX > displayLowerRightX) | |
| 1122 location.x= location.x - (lowerRightX - displayLowerRightX); | |
| 1123 | |
| 1124 if (lowerRightY > displayLowerRightY) | |
| 1125 location.y= location.y - (lowerRightY - displayLowerRightY); | |
| 1126 | |
| 1127 return (location.x >= displayArea.x && location.y >= displayArea.y); | |
| 1128 } | |
| 1129 | |
| 1130 return false; | |
| 1131 } | |
| 1132 | |
| 1133 /** | |
| 1134 * Returns the next fallback anchor as specified by this manager's | |
| 1135 * fallback anchor sequence. | |
| 1136 * <p> | |
| 1137 * The fallback anchor for the given anchor is the one that comes directly after | |
| 1138 * the given anchor or is the first one in the sequence if the given anchor is the | |
| 1139 * last one in the sequence. | |
| 1140 * </p> | |
| 1141 * <p> | |
| 1142 * Note: It is the callers responsibility to prevent an endless loop i.e. to test | |
| 1143 * whether a given anchor has already been used once. | |
| 1144 * then | |
| 1145 * </p> | |
| 1146 * | |
| 1147 * @param anchor the current anchor | |
| 1148 * @return the next fallback anchor or <code>null</code> if no fallback anchor is available | |
| 1149 */ | |
| 1150 protected Anchor getNextFallbackAnchor(Anchor anchor) { | |
| 1151 | |
| 1152 if (anchor is null || fFallbackAnchors is null) | |
| 1153 return null; | |
| 1154 | |
| 1155 for (int i= 0; i < fFallbackAnchors.length; i++) { | |
| 1156 if (fFallbackAnchors[i] is anchor) | |
| 1157 return fFallbackAnchors[i + 1 is fFallbackAnchors.length ? 0 : i + 1]; | |
| 1158 } | |
| 1159 | |
| 1160 return null; | |
| 1161 } | |
| 1162 | |
| 1163 /** | |
| 1164 * Computes the location of the information control depending on the | |
| 1165 * subject area and the size of the information control. This method attempts | |
| 1166 * to find a location at which the information control lies completely in the display's | |
| 1167 * client area while honoring the manager's default anchor. If this isn't possible using the | |
| 1168 * default anchor, the fallback anchors are tried out. | |
| 1169 * | |
| 1170 * @param subjectArea the information area | |
| 1171 * @param controlSize the size of the information control | |
| 1172 * @return the computed location of the information control | |
| 1173 */ | |
| 1174 protected Point computeInformationControlLocation(Rectangle subjectArea, Point controlSize) { | |
| 1175 Rectangle subjectAreaDisplayRelative= Geometry.toDisplay(fSubjectControl, subjectArea); | |
| 1176 | |
| 1177 Point upperLeft; | |
| 1178 Anchor testAnchor= fAnchor; | |
| 1179 Rectangle bestBounds= null; | |
| 1180 int bestArea= Integer.MIN_VALUE; | |
| 1181 Anchor bestAnchor= null; | |
| 1182 do { | |
| 1183 | |
| 1184 upperLeft= computeLocation(subjectArea, controlSize, testAnchor); | |
| 1185 Monitor monitor= getClosestMonitor(subjectAreaDisplayRelative, testAnchor); | |
| 1186 if (updateLocation(upperLeft, controlSize, monitor.getClientArea(), testAnchor)) | |
| 1187 return upperLeft; | |
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1188 |
| 129 | 1189 // compute available area for this anchor and update if better than best |
| 1190 Rectangle available= computeAvailableArea(subjectAreaDisplayRelative, monitor.getClientArea(), testAnchor); | |
| 1191 Rectangle proposed= new Rectangle(upperLeft.x, upperLeft.y, controlSize.x, controlSize.y); | |
| 1192 available.intersect(proposed); | |
| 1193 int area= available.width * available.height; | |
| 1194 if (area > bestArea) { | |
| 1195 bestArea= area; | |
| 1196 bestBounds= available; | |
| 1197 bestAnchor= testAnchor; | |
| 1198 } | |
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1199 |
| 129 | 1200 testAnchor= getNextFallbackAnchor(testAnchor); |
| 1201 | |
| 1202 } while (testAnchor !is fAnchor && testAnchor !is null); | |
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1203 |
| 129 | 1204 // no anchor is perfect - select the one with larges area and set the size to not overlap with the subjectArea |
| 1205 if (bestAnchor !is ANCHOR_GLOBAL) | |
| 1206 Geometry.set(controlSize, Geometry.getSize(bestBounds)); | |
| 1207 return Geometry.getLocation(bestBounds); | |
| 1208 } | |
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1209 |
| 129 | 1210 /** |
| 1211 * Gets the closest monitor given an anchor and the subject area. | |
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1212 * |
| 129 | 1213 * @param area the subject area |
| 1214 * @param anchor the anchor | |
| 1215 * @return the monitor closest to the edge of <code>area</code> defined by | |
| 1216 * <code>anchor</code> | |
| 1217 * @since 3.3 | |
| 1218 */ | |
| 1219 private Monitor getClosestMonitor(Rectangle area, Anchor anchor) { | |
| 1220 Point center; | |
| 1221 if (ANCHOR_GLOBAL is anchor) | |
| 1222 center= Geometry.centerPoint(area); | |
| 1223 else | |
| 1224 center= Geometry.centerPoint(Geometry.getExtrudedEdge(area, 0, anchor.getSWTFlag())); | |
| 1225 return getClosestMonitor(fSubjectControl.getDisplay(), Geometry.createRectangle(center, new Point(0, 0))); | |
| 1226 } | |
| 1227 | |
| 1228 /** | |
| 1229 * Copied from dwtx.jface.window.Window. Returns the monitor whose client area contains | |
| 1230 * the given point. If no monitor contains the point, returns the monitor that is closest to the | |
| 1231 * point. If this is ever made public, it should be moved into a separate utility class. | |
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1232 * |
| 129 | 1233 * @param display the display to search for monitors |
| 1234 * @param rectangle the rectangle to find the closest monitor for (display coordinates) | |
| 1235 * @return the monitor closest to the given point | |
| 1236 * @since 3.3 | |
| 1237 */ | |
| 1238 private Monitor getClosestMonitor(Display display, Rectangle rectangle) { | |
| 1239 int closest = Integer.MAX_VALUE; | |
| 1240 | |
| 1241 Point toFind= Geometry.centerPoint(rectangle); | |
| 1242 Monitor[] monitors = display.getMonitors(); | |
| 1243 Monitor result = monitors[0]; | |
| 1244 | |
| 1245 for (int idx = 0; idx < monitors.length; idx++) { | |
| 1246 Monitor current = monitors[idx]; | |
| 1247 | |
| 1248 Rectangle clientArea = current.getClientArea(); | |
| 1249 | |
| 1250 if (clientArea.contains(toFind)) { | |
| 1251 return current; | |
| 1252 } | |
| 1253 | |
| 1254 int distance = Geometry.distanceSquared(Geometry.centerPoint(clientArea), toFind); | |
| 1255 if (distance < closest) { | |
| 1256 closest = distance; | |
| 1257 result = current; | |
| 1258 } | |
| 1259 } | |
| 1260 | |
| 1261 return result; | |
| 1262 } | |
| 1263 | |
| 1264 /** | |
| 1265 * Computes information to be displayed as well as the subject area | |
| 1266 * and initiates that this information is presented in the information control. | |
| 1267 * This happens only if this controller is enabled. | |
| 1268 */ | |
| 1269 public void showInformation() { | |
| 1270 if (fEnabled) | |
| 1271 doShowInformation(); | |
| 1272 } | |
| 1273 | |
| 1274 /** | |
| 1275 * Computes information to be displayed as well as the subject area | |
| 1276 * and initiates that this information is presented in the information control. | |
| 1277 */ | |
| 1278 protected void doShowInformation() { | |
| 1279 fSubjectArea= null; | |
| 1280 fInformation= null; | |
| 1281 computeInformation(); | |
| 1282 } | |
| 1283 | |
| 1284 /** | |
| 1285 * Presents the information in the information control or hides the information | |
| 1286 * control if no information should be presented. The information has previously | |
| 1287 * been set using <code>setInformation</code>. | |
| 1288 */ | |
| 1289 protected void presentInformation() { | |
| 1290 bool hasContents= false; | |
| 138 | 1291 if ( cast(String)fInformation ) |
| 134 | 1292 hasContents= (cast(String)fInformation).trim().length() > 0; |
| 129 | 1293 else |
| 1294 hasContents= (fInformation !is null); | |
| 1295 | |
| 1296 if (fSubjectArea !is null && hasContents) | |
| 1297 internalShowInformationControl(fSubjectArea, fInformation); | |
| 1298 else | |
| 1299 hideInformationControl(); | |
| 1300 } | |
| 1301 | |
| 1302 /** | |
| 1303 * Opens the information control with the given information and the specified | |
| 1304 * subject area. It also activates the information control closer. | |
| 1305 * | |
| 1306 * @param subjectArea the information area | |
| 1307 * @param information the information | |
| 1308 */ | |
| 1309 private void internalShowInformationControl(Rectangle subjectArea, Object information) { | |
| 138 | 1310 if ( cast(InformationControlReplacer)this ) { |
| 134 | 1311 (cast(InformationControlReplacer) this).showInformationControl(subjectArea, information); |
| 129 | 1312 return; |
| 1313 } | |
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1314 |
| 129 | 1315 IInformationControl informationControl= getInformationControl(); |
| 1316 if (informationControl !is null) { | |
| 1317 | |
| 1318 Point sizeConstraints= computeSizeConstraints(fSubjectControl, fSubjectArea, informationControl); | |
| 138 | 1319 if ( cast(IInformationControlExtension3)informationControl ) { |
| 134 | 1320 IInformationControlExtension3 iControl3= cast(IInformationControlExtension3) informationControl; |
| 129 | 1321 Rectangle trim= iControl3.computeTrim(); |
| 1322 sizeConstraints.x += trim.width; | |
| 1323 sizeConstraints.y += trim.height; | |
| 1324 } | |
| 1325 informationControl.setSizeConstraints(sizeConstraints.x, sizeConstraints.y); | |
| 1326 | |
| 138 | 1327 if ( cast(IInformationControlExtension2)informationControl ) |
| 134 | 1328 (cast(IInformationControlExtension2)informationControl).setInput(information); |
| 129 | 1329 else |
| 1330 informationControl.setInformation(information.toString()); | |
| 1331 | |
| 138 | 1332 if ( cast(IInformationControlExtension)informationControl ) { |
| 134 | 1333 IInformationControlExtension extension= cast(IInformationControlExtension)informationControl; |
| 129 | 1334 if (!extension.hasContents()) |
| 1335 return; | |
| 1336 } | |
| 1337 | |
| 1338 Point size= null; | |
| 1339 Point location= null; | |
| 1340 Rectangle bounds= restoreInformationControlBounds(); | |
| 1341 | |
| 1342 if (bounds !is null) { | |
| 1343 if (bounds.x > -1 && bounds.y > -1) | |
| 1344 location= Geometry.getLocation(bounds); | |
| 1345 | |
| 1346 if (bounds.width > -1 && bounds.height > -1) | |
| 1347 size= Geometry.getSize(bounds); | |
| 1348 } | |
| 1349 | |
| 1350 if (size is null) | |
| 1351 size= informationControl.computeSizeHint(); | |
| 1352 | |
| 1353 if (fEnforceAsMinimalSize) | |
| 1354 size= Geometry.max(size, sizeConstraints); | |
| 1355 if (fEnforceAsMaximalSize) | |
| 1356 size= Geometry.min(size, sizeConstraints); | |
| 1357 | |
| 1358 if (location is null) | |
| 1359 location= computeInformationControlLocation(subjectArea, size); | |
| 1360 | |
| 1361 Rectangle controlBounds= Geometry.createRectangle(location, size); | |
| 1362 cropToClosestMonitor(controlBounds); | |
| 1363 location= Geometry.getLocation(controlBounds); | |
| 1364 size= Geometry.getSize(controlBounds); | |
| 1365 informationControl.setLocation(location); | |
| 1366 informationControl.setSize(size.x, size.y); | |
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1367 |
| 129 | 1368 showInformationControl(subjectArea); |
| 1369 } | |
| 1370 } | |
| 1371 | |
| 1372 /** | |
| 1373 * Crops the given bounds such that they lie completely on the closest monitor. | |
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1374 * |
| 129 | 1375 * @param bounds shell bounds to crop |
| 1376 * @since 3.4 | |
| 1377 */ | |
| 1378 void cropToClosestMonitor(Rectangle bounds) { | |
| 1379 Rectangle monitorBounds= getClosestMonitor(fSubjectControl.getDisplay(), bounds).getClientArea(); | |
| 1380 bounds.intersect(monitorBounds); | |
| 1381 } | |
| 1382 | |
| 1383 /** | |
| 1384 * Hides the information control and stops the information control closer. | |
| 1385 */ | |
| 1386 protected void hideInformationControl() { | |
| 1387 if (fInformationControl !is null) { | |
| 1388 storeInformationControlBounds(); | |
| 1389 fInformationControl.setVisible(false); | |
| 1390 if (fInformationControlCloser !is null) | |
| 1391 fInformationControlCloser.stop(); | |
| 1392 } | |
| 1393 } | |
| 1394 | |
| 1395 /** | |
| 1396 * Shows the information control and starts the information control closer. | |
| 1397 * This method may not be called by clients. | |
| 1398 * | |
| 1399 * @param subjectArea the information area | |
| 1400 */ | |
| 1401 protected void showInformationControl(Rectangle subjectArea) { | |
| 1402 fInformationControl.setVisible(true); | |
| 1403 | |
| 1404 if (fTakesFocusWhenVisible) | |
| 1405 fInformationControl.setFocus(); | |
| 1406 | |
| 1407 if (fInformationControlCloser !is null) | |
| 1408 fInformationControlCloser.start(subjectArea); | |
| 1409 } | |
| 1410 | |
| 1411 /** | |
| 1412 * Replaces this manager's information control as defined by | |
| 1413 * the information control replacer. | |
| 1414 * <strong>Must only be called when {@link #fInformationControl} instanceof {@link IInformationControlExtension3}!</strong> | |
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1415 * |
| 129 | 1416 * @param takeFocus <code>true</code> iff the replacing information control should take focus |
| 1417 * | |
| 1418 * @since 3.4 | |
| 1419 */ | |
| 1420 void replaceInformationControl(bool takeFocus) { | |
| 1421 if (fInformationControlReplacer !is null && canReplace(fInformationControl)) { | |
| 134 | 1422 IInformationControlExtension3 iControl3= cast(IInformationControlExtension3) fInformationControl; |
| 129 | 1423 Rectangle b= iControl3.getBounds(); |
| 1424 Rectangle t= iControl3.computeTrim(); | |
| 1425 Rectangle contentBounds= new Rectangle(b.x - t.x, b.y - t.y, b.width - t.width, b.height - t.height); | |
| 134 | 1426 IInformationControlCreator informationPresenterControlCreator= (cast(IInformationControlExtension5) fInformationControl).getInformationPresenterControlCreator(); |
| 129 | 1427 fInformationControlReplacer.replaceInformationControl(informationPresenterControlCreator, contentBounds, fInformation, fSubjectArea, takeFocus); |
| 1428 } | |
| 1429 hideInformationControl(); | |
| 1430 } | |
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1431 |
| 129 | 1432 /** |
| 1433 * Disposes this manager's information control. | |
| 1434 */ | |
| 1435 public void disposeInformationControl() { | |
| 1436 if (fInformationControl !is null) { | |
| 1437 fInformationControl.dispose(); | |
| 1438 handleInformationControlDisposed(); | |
| 1439 } | |
| 1440 } | |
| 1441 | |
| 1442 /** | |
| 1443 * Disposes this manager and if necessary all dependent parts such as | |
| 1444 * the information control. For symmetry it first disables this manager. | |
| 1445 */ | |
| 1446 public void dispose() { | |
| 1447 if (!fDisposed) { | |
| 1448 | |
| 1449 fDisposed= true; | |
| 1450 | |
| 1451 setEnabled(false); | |
| 1452 disposeInformationControl(); | |
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1453 |
| 129 | 1454 if (fInformationControlReplacer !is null) { |
| 1455 fInformationControlReplacer.dispose(); | |
| 1456 fInformationControlReplacer= null; | |
| 1457 } | |
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1458 |
| 129 | 1459 if (fSubjectControl !is null && !fSubjectControl.isDisposed() && fSubjectControlDisposeListener !is null) |
| 1460 fSubjectControl.removeDisposeListener(fSubjectControlDisposeListener); | |
| 1461 fSubjectControl= null; | |
| 1462 fSubjectControlDisposeListener= null; | |
| 1463 | |
| 1464 fIsCustomInformationControl= false; | |
| 1465 fCustomInformationControlCreator= null; | |
| 1466 fInformationControlCreator= null; | |
| 1467 fInformationControlCloser= null; | |
| 1468 } | |
| 1469 } | |
| 1470 | |
| 1471 // ------ control's size handling dialog settings ------ | |
| 1472 | |
| 1473 /** | |
| 1474 * Stores the information control's bounds. | |
| 1475 * | |
| 1476 * @since 3.0 | |
| 1477 */ | |
| 1478 protected void storeInformationControlBounds() { | |
| 1479 if (fDialogSettings is null || fInformationControl is null || !(fIsRestoringLocation || fIsRestoringSize)) | |
| 1480 return; | |
| 1481 | |
| 138 | 1482 if (!( cast(IInformationControlExtension3)fInformationControl )) |
| 129 | 1483 throw new UnsupportedOperationException(); |
| 1484 | |
| 134 | 1485 bool controlRestoresSize= (cast(IInformationControlExtension3)fInformationControl).restoresSize(); |
| 1486 bool controlRestoresLocation= (cast(IInformationControlExtension3)fInformationControl).restoresLocation(); | |
| 129 | 1487 |
| 134 | 1488 Rectangle bounds= (cast(IInformationControlExtension3)fInformationControl).getBounds(); |
| 129 | 1489 if (bounds is null) |
| 1490 return; | |
| 1491 | |
| 1492 if (fIsRestoringSize && controlRestoresSize) { | |
| 1493 fDialogSettings.put(STORE_SIZE_WIDTH, bounds.width); | |
| 1494 fDialogSettings.put(STORE_SIZE_HEIGHT, bounds.height); | |
| 1495 } | |
| 1496 if (fIsRestoringLocation && controlRestoresLocation) { | |
| 1497 fDialogSettings.put(STORE_LOCATION_X, bounds.x); | |
| 1498 fDialogSettings.put(STORE_LOCATION_Y, bounds.y); | |
| 1499 } | |
| 1500 } | |
| 1501 /** | |
| 1502 * Restores the information control's bounds. | |
| 1503 * | |
| 1504 * @return the stored bounds | |
| 1505 * @since 3.0 | |
| 1506 */ | |
| 1507 protected Rectangle restoreInformationControlBounds() { | |
| 1508 if (fDialogSettings is null || !(fIsRestoringLocation || fIsRestoringSize)) | |
| 1509 return null; | |
| 1510 | |
| 138 | 1511 if (!( cast(IInformationControlExtension3)fInformationControl )) |
| 129 | 1512 throw new UnsupportedOperationException(); |
| 1513 | |
| 134 | 1514 bool controlRestoresSize= (cast(IInformationControlExtension3)fInformationControl).restoresSize(); |
| 1515 bool controlRestoresLocation= (cast(IInformationControlExtension3)fInformationControl).restoresLocation(); | |
| 129 | 1516 |
| 1517 Rectangle bounds= new Rectangle(-1, -1, -1, -1); | |
| 1518 | |
| 1519 if (fIsRestoringSize && controlRestoresSize) { | |
| 1520 try { | |
| 1521 bounds.width= fDialogSettings.getInt(STORE_SIZE_WIDTH); | |
| 1522 bounds.height= fDialogSettings.getInt(STORE_SIZE_HEIGHT); | |
| 1523 } catch (NumberFormatException ex) { | |
| 1524 bounds.width= -1; | |
| 1525 bounds.height= -1; | |
| 1526 } | |
| 1527 } | |
| 1528 | |
| 1529 if (fIsRestoringLocation && controlRestoresLocation) { | |
| 1530 try { | |
| 1531 bounds.x= fDialogSettings.getInt(STORE_LOCATION_X); | |
| 1532 bounds.y= fDialogSettings.getInt(STORE_LOCATION_Y); | |
| 1533 } catch (NumberFormatException ex) { | |
| 1534 bounds.x= -1; | |
| 1535 bounds.y= -1; | |
| 1536 } | |
| 1537 } | |
| 1538 | |
| 1539 // sanity check | |
| 1540 if (bounds.x is -1 && bounds.y is -1 && bounds.width is -1 && bounds.height is -1) | |
| 1541 return null; | |
| 1542 | |
| 1543 Rectangle maxBounds= null; | |
| 1544 if (fSubjectControl !is null && !fSubjectControl.isDisposed()) | |
| 1545 maxBounds= fSubjectControl.getDisplay().getBounds(); | |
| 1546 else { | |
| 1547 // fallback | |
| 1548 Display display= Display.getCurrent(); | |
| 1549 if (display is null) | |
| 1550 display= Display.getDefault(); | |
| 1551 if (display !is null && !display.isDisposed()) | |
| 1552 maxBounds= display.getBounds(); | |
| 1553 } | |
| 1554 | |
| 1555 | |
| 1556 if (bounds.width > -1 && bounds.height > -1) { | |
| 1557 if (maxBounds !is null) { | |
| 1558 bounds.width= Math.min(bounds.width, maxBounds.width); | |
| 1559 bounds.height= Math.min(bounds.height, maxBounds.height); | |
| 1560 } | |
| 1561 | |
| 1562 // Enforce an absolute minimal size | |
| 1563 bounds.width= Math.max(bounds.width, 30); | |
| 1564 bounds.height= Math.max(bounds.height, 30); | |
| 1565 } | |
| 1566 | |
| 1567 if (bounds.x > -1 && bounds.y > -1 && maxBounds !is null) { | |
| 1568 bounds.x= Math.max(bounds.x, maxBounds.x); | |
| 1569 bounds.y= Math.max(bounds.y, maxBounds.y); | |
| 1570 | |
| 1571 if (bounds .width > -1 && bounds.height > -1) { | |
| 1572 bounds.x= Math.min(bounds.x, maxBounds.width - bounds.width); | |
| 1573 bounds.y= Math.min(bounds.y, maxBounds.height - bounds.height); | |
| 1574 } | |
| 1575 } | |
| 1576 | |
| 1577 return bounds; | |
| 1578 } | |
| 1579 | |
| 1580 /** | |
| 1581 * Returns an adapter that gives access to internal methods. | |
| 1582 * <p> | |
| 1583 * <strong>Note:</strong> This method is not intended to be referenced or overridden by clients.</p> | |
|
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1584 * |
| 129 | 1585 * @return the replaceable information control accessor |
| 1586 * @since 3.4 | |
| 1587 * @noreference This method is not intended to be referenced by clients. | |
| 1588 * @nooverride This method is not intended to be re-implemented or extended by clients. | |
| 1589 */ | |
| 1590 public InternalAccessor getInternalAccessor() { | |
| 1591 return new MyInternalAccessor(); | |
| 1592 } | |
| 1593 } |