Mercurial > projects > dwt-addons
annotate dwtx/jface/text/AbstractInformationControlManager.d @ 151:eb21d3dfc767
fix module statement
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 24 Aug 2008 23:55:45 +0200 |
| parents | 000f9136b8f7 |
| children | a9566845f1cb |
| 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; | |
| 179 import dwtx.jface.text.ITextViewerExtension8.EnrichMode; | |
| 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. */ | |
| 146 | 323 private const static Anchor[] ANCHORS= { new Anchor(DWT.TOP), new Anchor(DWT.BOTTOM), new Anchor(DWT.LEFT), new Anchor(DWT.RIGHT) }; |
| 129 | 324 |
| 325 /** Anchor representing the top of the information area */ | |
| 146 | 326 public const static Anchor ANCHOR_TOP= ANCHORS[0]; |
| 129 | 327 /** Anchor representing the bottom of the information area */ |
| 146 | 328 public const static Anchor ANCHOR_BOTTOM= ANCHORS[1]; |
| 129 | 329 /** Anchor representing the left side of the information area */ |
| 146 | 330 public const static Anchor ANCHOR_LEFT= ANCHORS[2]; |
| 129 | 331 /** Anchor representing the right side of the information area */ |
| 146 | 332 public const static Anchor ANCHOR_RIGHT= ANCHORS[3]; |
| 129 | 333 /** |
| 334 * Anchor representing the middle of the subject control | |
| 335 * @since 2.1 | |
| 336 */ | |
| 146 | 337 public const static Anchor ANCHOR_GLOBAL= new Anchor(DWT.CENTER); |
| 129 | 338 |
| 339 /** | |
| 340 * Dialog store constant for the location's x-coordinate. | |
| 341 * @since 3.0 | |
| 342 */ | |
| 147 | 343 public static const String STORE_LOCATION_X= "location.x"; //$NON-NLS-1$ |
| 129 | 344 /** |
| 345 * Dialog store constant for the location's y-coordinate. | |
| 346 * @since 3.0 | |
| 347 */ | |
| 147 | 348 public static const String STORE_LOCATION_Y= "location.y"; //$NON-NLS-1$ |
| 129 | 349 /** |
| 350 * Dialog store constant for the size's width. | |
| 351 * @since 3.0 | |
| 352 */ | |
| 147 | 353 public static const String STORE_SIZE_WIDTH= "size.width"; //$NON-NLS-1$ |
| 129 | 354 /** |
| 355 * Dialog store constant for the size's height. | |
| 356 * @since 3.0 | |
| 357 */ | |
| 147 | 358 public static const String STORE_SIZE_HEIGHT= "size.height"; //$NON-NLS-1$ |
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359 |
| 129 | 360 /** |
| 361 * Tells whether this class and its subclasses are in debug mode. | |
| 362 * <p> | |
| 363 * Subclasses may use this. | |
| 364 * </p> | |
| 365 * @since 3.4 | |
| 366 */ | |
| 367 protected static final bool DEBUG= "true".equalsIgnoreCase(Platform.getDebugOption("dwtx.jface.text/debug/AbstractInformationControlManager")); //$NON-NLS-1$//$NON-NLS-2$ | |
| 368 | |
| 369 | |
| 370 /** The subject control of the information control */ | |
| 371 private Control fSubjectControl; | |
| 372 | |
| 373 /** The display area for which the information to be presented is valid */ | |
| 374 private Rectangle fSubjectArea; | |
| 375 | |
| 376 /** The information to be presented */ | |
| 377 private Object fInformation; | |
| 378 | |
| 379 /** Indicates whether the information control takes focus when visible */ | |
| 380 private bool fTakesFocusWhenVisible= false; | |
| 381 | |
| 382 /** | |
| 383 * The information control. | |
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384 * |
| 129 | 385 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 386 * compatibility reasons. | |
| 387 */ | |
| 388 protected IInformationControl fInformationControl; | |
| 389 | |
| 390 /** | |
| 391 * The information control creator. | |
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392 * |
| 129 | 393 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 394 * compatibility reasons. | |
| 395 */ | |
| 396 protected IInformationControlCreator fInformationControlCreator; | |
| 397 | |
| 398 /** | |
| 399 * The information control closer. | |
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400 * |
| 129 | 401 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 402 * compatibility reasons. | |
| 403 */ | |
| 404 protected IInformationControlCloser fInformationControlCloser; | |
| 405 | |
| 406 /** | |
| 407 * Indicates that the information control has been disposed. | |
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408 * |
| 129 | 409 * <p>This field should not be referenced by subclasses. It is <code>protected</code> for API |
| 410 * compatibility reasons. | |
| 411 */ | |
| 412 protected bool fDisposed= false; | |
| 413 | |
| 414 /** | |
| 415 * The information control replacer to be used when this information control | |
| 416 * needs to be replaced with another information control. | |
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417 * |
| 129 | 418 * @since 3.4 |
| 419 */ | |
| 420 private InformationControlReplacer fInformationControlReplacer; | |
| 421 | |
| 422 /** Indicates the enable state of this manager */ | |
| 423 private bool fEnabled= false; | |
| 424 | |
| 425 /** Cached, computed size constraints of the information control in points */ | |
| 426 private Point fSizeConstraints; | |
| 427 | |
| 428 /** The vertical margin when laying out the information control */ | |
| 429 private int fMarginY= 5; | |
| 430 | |
| 431 /** The horizontal margin when laying out the information control */ | |
| 432 private int fMarginX= 5; | |
| 433 | |
| 434 /** The width constraint of the information control in characters */ | |
| 435 private int fWidthConstraint= 60; | |
| 436 | |
| 437 /** The height constraint of the information control in characters */ | |
| 438 private int fHeightConstraint= 6; | |
| 439 | |
| 440 /** Indicates whether the size constraints should be enforced as minimal control size */ | |
| 441 private bool fEnforceAsMinimalSize= false; | |
| 442 | |
| 443 /** Indicates whether the size constraints should be enforced as maximal control size */ | |
| 444 private bool fEnforceAsMaximalSize= false; | |
| 445 | |
| 446 /** The anchor for laying out the information control in relation to the subject control */ | |
| 447 private Anchor fAnchor= ANCHOR_BOTTOM; | |
| 448 | |
| 449 /** | |
| 450 * The anchor sequence used to layout the information control if the original anchor | |
| 451 * can not be used because the information control would not fit in the display client area. | |
| 452 * <p> | |
| 453 * The fallback anchor for a given anchor is the one that comes directly after the given anchor or | |
| 454 * is the first one in the sequence if the given anchor is the last one in the sequence. | |
| 455 * <p> | |
| 456 * </p> | |
| 457 * Note: This sequence is ignored if the original anchor is not contained in this sequence. | |
| 458 * </p> | |
| 459 * | |
| 460 * @see #fAnchor | |
| 461 */ | |
| 462 private Anchor[] fFallbackAnchors= ANCHORS; | |
| 463 | |
| 464 /** | |
| 465 * The custom information control creator. | |
| 466 * @since 3.0 | |
| 467 */ | |
| 468 private volatile IInformationControlCreator fCustomInformationControlCreator; | |
| 469 | |
| 470 /** | |
| 471 * Tells whether a custom information control is in use. | |
| 472 * @since 3.0 | |
| 473 */ | |
| 474 private bool fIsCustomInformationControl= false; | |
| 475 | |
| 476 /** | |
| 477 * The dialog settings for the control's bounds. | |
| 478 * @since 3.0 | |
| 479 */ | |
| 480 private IDialogSettings fDialogSettings; | |
| 481 | |
| 482 /** | |
| 483 * Tells whether the control's location should be read | |
| 484 * from the dialog settings and whether the last | |
| 485 * valid control's size is stored back into the settings. | |
| 486 * | |
| 487 * @since 3.0 | |
| 488 */ | |
| 489 private bool fIsRestoringLocation; | |
| 490 | |
| 491 /** | |
| 492 * Tells whether the control's size should be read | |
| 493 * from the dialog settings and whether the last | |
| 494 * valid control's size is stored back into the settings. | |
| 495 * | |
| 496 * @since 3.0 | |
| 497 */ | |
| 498 private bool fIsRestoringSize; | |
| 499 | |
| 500 /** | |
| 501 * The dispose listener on the subject control. | |
|
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502 * |
| 129 | 503 * @since 3.1 |
| 504 */ | |
| 505 private DisposeListener fSubjectControlDisposeListener; | |
| 506 | |
| 507 | |
| 508 /** | |
| 509 * Creates a new information control manager using the given information control creator. | |
| 510 * By default the following configuration is given: | |
| 511 * <ul> | |
| 512 * <li> enabled is false | |
| 513 * <li> horizontal margin is 5 points | |
| 514 * <li> vertical margin is 5 points | |
| 515 * <li> width constraint is 60 characters | |
| 516 * <li> height constraint is 6 characters | |
| 517 * <li> enforce constraints as minimal size is false | |
| 518 * <li> enforce constraints as maximal size is false | |
| 519 * <li> layout anchor is ANCHOR_BOTTOM | |
| 520 * <li> fall back anchors is { ANCHOR_TOP, ANCHOR_BOTTOM, ANCHOR_LEFT, ANCHOR_RIGHT, ANCHOR_GLOBAL } | |
| 521 * <li> takes focus when visible is false | |
| 522 * </ul> | |
| 523 * | |
| 524 * @param creator the information control creator | |
| 525 */ | |
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526 protected this(IInformationControlCreator creator) { |
| 129 | 527 Assert.isNotNull(creator); |
| 528 fInformationControlCreator= creator; | |
| 529 } | |
| 530 | |
| 531 /** | |
| 532 * Computes the information to be displayed and the area in which the computed | |
| 533 * information is valid. Implementation of this method must finish their computation | |
| 534 * by setting the computation results using <code>setInformation</code>. | |
| 535 */ | |
| 536 abstract protected void computeInformation(); | |
| 537 | |
| 538 /** | |
| 539 * Sets the parameters of the information to be displayed. These are the information itself and | |
| 540 * the area for which the given information is valid. This so called subject area is a graphical | |
| 541 * region of the information control's subject control. This method calls <code>presentInformation()</code> | |
| 542 * to trigger the presentation of the computed information. | |
| 543 * | |
| 544 * @param information the information, or <code>null</code> if none is available | |
| 545 * @param subjectArea the subject area, or <code>null</code> if none is available | |
| 546 */ | |
| 547 protected final void setInformation(String information, Rectangle subjectArea) { | |
| 134 | 548 setInformation(cast(Object)information, subjectArea); |
| 129 | 549 } |
| 550 | |
| 551 /** | |
| 552 * Sets the parameters of the information to be displayed. These are the information itself and | |
| 553 * the area for which the given information is valid. This so called subject area is a graphical | |
| 554 * region of the information control's subject control. This method calls <code>presentInformation()</code> | |
| 555 * to trigger the presentation of the computed information. | |
| 556 * | |
| 557 * @param information the information, or <code>null</code> if none is available | |
| 558 * @param subjectArea the subject area, or <code>null</code> if none is available | |
| 559 * @since 2.1 | |
| 560 */ | |
| 561 protected final void setInformation(Object information, Rectangle subjectArea) { | |
| 562 fInformation= information; | |
| 563 fSubjectArea= subjectArea; | |
| 564 presentInformation(); | |
| 565 } | |
| 566 | |
| 567 /** | |
| 568 * Sets the information control closer for this manager. | |
| 569 * | |
| 570 * @param closer the information control closer for this manager | |
| 571 */ | |
| 572 protected void setCloser(IInformationControlCloser closer) { | |
| 573 fInformationControlCloser= closer; | |
| 574 } | |
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575 |
| 129 | 576 /** |
| 577 * Sets the information control replacer for this manager and disposes the | |
| 578 * old one if set. | |
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579 * |
| 129 | 580 * @param replacer the information control replacer for this manager, or |
| 581 * <code>null</code> if no information control replacing should | |
| 582 * take place | |
| 583 * @since 3.4 | |
| 584 */ | |
| 585 void setInformationControlReplacer(InformationControlReplacer replacer) { | |
| 586 if (fInformationControlReplacer !is null) | |
| 587 fInformationControlReplacer.dispose(); | |
| 588 fInformationControlReplacer= replacer; | |
| 589 } | |
| 590 | |
| 591 /** | |
| 592 * Returns the current information control replacer or <code>null</code> if none has been installed. | |
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593 * |
| 129 | 594 * @return the current information control replacer or <code>null</code> if none has been installed |
| 595 * @since 3.4 | |
| 596 */ | |
| 597 InformationControlReplacer getInformationControlReplacer() { | |
| 598 return fInformationControlReplacer; | |
| 599 } | |
| 600 | |
| 601 /** | |
| 602 * Returns whether an information control replacer has been installed. | |
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603 * |
| 129 | 604 * @return whether an information control replacer has been installed |
| 605 * @since 3.4 | |
| 606 */ | |
| 607 bool hasInformationControlReplacer() { | |
| 608 return fInformationControlReplacer !is null; | |
| 609 } | |
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610 |
| 129 | 611 /** |
| 612 * Tests whether the given information control is replaceable. | |
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613 * |
| 129 | 614 * @param iControl information control or <code>null</code> if none |
| 615 * @return <code>true</code> if information control is replaceable, <code>false</code> otherwise | |
| 616 * @since 3.4 | |
| 617 */ | |
| 618 bool canReplace(IInformationControl iControl) { | |
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619 return cast(IInformationControlExtension3)iControl |
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620 && cast(IInformationControlExtension5)iControl |
| 134 | 621 && (cast(IInformationControlExtension5) iControl).getInformationPresenterControlCreator() !is null; |
| 129 | 622 } |
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623 |
| 129 | 624 /** |
| 625 * Returns the current information control, or <code>null</code> if none. | |
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626 * |
| 129 | 627 * @return the current information control, or <code>null</code> if none |
| 628 * @since 3.4 | |
| 629 */ | |
| 630 IInformationControl getCurrentInformationControl() { | |
| 631 return fInformationControl; | |
| 632 } | |
| 633 | |
| 634 /** | |
| 635 * Tells whether this manager's information control is currently being replaced. | |
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636 * |
| 129 | 637 * @return <code>true</code> if a replace is in progress |
| 638 * @since 3.4 | |
| 639 */ | |
| 640 bool isReplaceInProgress() { | |
| 641 return fInformationControlReplacer !is null && fInformationControlReplacer.isReplacing(); | |
| 642 } | |
| 643 | |
| 644 /** | |
| 645 * Sets the horizontal and vertical margin to be used when laying out the | |
| 646 * information control relative to the subject control. | |
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647 * |
| 129 | 648 * @param xMargin the x-margin |
| 649 * @param yMargin the y-Margin | |
| 650 */ | |
| 651 public void setMargins(int xMargin, int yMargin) { | |
| 652 fMarginX= xMargin; | |
| 653 fMarginY= yMargin; | |
| 654 } | |
| 655 | |
| 656 /** | |
| 657 * Sets the width- and height constraints of the information control. | |
| 658 * | |
| 659 * @param widthInChar the width constraint in number of characters | |
| 660 * @param heightInChar the height constrain in number of characters | |
| 661 * @param enforceAsMinimalSize indicates whether the constraints describe the minimal allowed size of the control | |
| 662 * @param enforceAsMaximalSize indicates whether the constraints describe the maximal allowed size of the control | |
| 663 */ | |
| 664 public void setSizeConstraints(int widthInChar, int heightInChar, bool enforceAsMinimalSize, bool enforceAsMaximalSize) { | |
| 665 fSizeConstraints= null; | |
| 666 fWidthConstraint= widthInChar; | |
| 667 fHeightConstraint= heightInChar; | |
| 668 fEnforceAsMinimalSize= enforceAsMinimalSize; | |
| 669 fEnforceAsMaximalSize= enforceAsMaximalSize; | |
| 670 | |
| 671 } | |
| 672 | |
| 673 /** | |
| 674 * Tells this information control manager to open the information | |
| 675 * control with the values contained in the given dialog settings | |
| 676 * and to store the control's last valid size in the given dialog | |
| 677 * settings. | |
| 678 * <p> | |
| 679 * Note: This API is only valid if the information control implements | |
| 680 * {@link IInformationControlExtension3}. Not following this restriction | |
| 681 * will later result in an {@link UnsupportedOperationException}. | |
| 682 * </p> | |
| 683 * <p> | |
| 684 * The constants used to store the values are: | |
| 685 * <ul> | |
| 686 * <li>{@link AbstractInformationControlManager#STORE_LOCATION_X}</li> | |
| 687 * <li>{@link AbstractInformationControlManager#STORE_LOCATION_Y}</li> | |
| 688 * <li>{@link AbstractInformationControlManager#STORE_SIZE_WIDTH}</li> | |
| 689 * <li>{@link AbstractInformationControlManager#STORE_SIZE_HEIGHT}</li> | |
| 690 * </ul> | |
| 691 * </p> | |
| 692 * | |
| 693 * @param dialogSettings | |
| 694 * @param restoreLocation <code>true</code> iff the location is must be (re-)stored | |
| 695 * @param restoreSize <code>true</code>iff the size is (re-)stored | |
| 696 * @since 3.0 | |
| 697 */ | |
| 698 public void setRestoreInformationControlBounds(IDialogSettings dialogSettings, bool restoreLocation, bool restoreSize) { | |
| 699 Assert.isTrue(dialogSettings !is null && (restoreLocation || restoreSize)); | |
| 700 fDialogSettings= dialogSettings; | |
| 701 fIsRestoringLocation= restoreLocation; | |
| 702 fIsRestoringSize= restoreSize; | |
| 703 } | |
| 704 | |
| 705 /** | |
| 706 * Sets the anchor used for laying out the information control relative to the | |
| 707 * subject control. E.g, using <code>ANCHOR_TOP</code> indicates that the | |
| 708 * information control is position above the area for which the information to | |
| 709 * be displayed is valid. | |
| 710 * | |
| 711 * @param anchor the layout anchor | |
| 712 */ | |
| 713 public void setAnchor(Anchor anchor) { | |
| 714 fAnchor= anchor; | |
| 715 } | |
| 716 | |
| 717 /** | |
| 718 * Sets the anchors fallback sequence used to layout the information control if the original | |
| 719 * anchor can not be used because the information control would not fit in the display client | |
| 720 * area. | |
| 721 * <p> | |
| 722 * The fallback anchor for a given anchor is the one that comes directly after the given anchor or | |
| 723 * is the first one in the sequence if the given anchor is the last one in the sequence. | |
| 724 * <p> | |
| 725 * </p> | |
| 726 * Note: This sequence is ignored if the original anchor is not contained in this list. | |
| 727 * </p> | |
| 728 * | |
| 729 * @param fallbackAnchors the array with the anchor fallback sequence | |
| 730 * @see #setAnchor(AbstractInformationControlManager.Anchor) | |
| 731 */ | |
| 732 public void setFallbackAnchors(Anchor[] fallbackAnchors) { | |
| 733 if (fallbackAnchors !is null) { | |
| 734 fFallbackAnchors= new Anchor[fallbackAnchors.length]; | |
| 735 System.arraycopy(fallbackAnchors, 0, fFallbackAnchors, 0, fallbackAnchors.length); | |
| 736 } else | |
| 737 fFallbackAnchors= null; | |
| 738 } | |
| 739 | |
| 740 /** | |
| 741 * Sets the temporary custom control creator, overriding this manager's default information control creator. | |
| 742 * | |
| 743 * @param informationControlCreator the creator, possibly <code>null</code> | |
| 744 * @since 3.0 | |
| 745 */ | |
| 746 protected void setCustomInformationControlCreator(IInformationControlCreator informationControlCreator) { | |
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747 if (informationControlCreator !is null && cast(IInformationControlCreatorExtension)fCustomInformationControlCreator) { |
| 134 | 748 IInformationControlCreatorExtension extension= cast(IInformationControlCreatorExtension) fCustomInformationControlCreator; |
| 129 | 749 if (extension.canReplace(informationControlCreator)) |
| 750 return; | |
| 751 } | |
| 752 fCustomInformationControlCreator= informationControlCreator; | |
| 753 } | |
| 754 | |
| 755 /** | |
| 756 * Tells the manager whether it should set the focus to the information control when made visible. | |
| 757 * | |
| 758 * @param takesFocus <code>true</code> if information control should take focus when made visible | |
| 759 */ | |
| 760 public void takesFocusWhenVisible(bool takesFocus) { | |
| 761 fTakesFocusWhenVisible= takesFocus; | |
| 762 } | |
| 763 | |
| 764 /** | |
| 765 * Handles the disposal of the subject control. By default, the information control | |
| 766 * is disposed by calling <code>disposeInformationControl</code>. Subclasses may extend | |
| 767 * this method. | |
| 768 */ | |
| 769 protected void handleSubjectControlDisposed() { | |
| 770 disposeInformationControl(); | |
| 771 } | |
| 772 | |
| 773 /** | |
| 774 * Installs this manager on the given control. The control is now taking the role of | |
| 775 * the subject control. This implementation sets the control also as the information | |
| 776 * control closer's subject control and automatically enables this manager. | |
| 777 * | |
| 778 * @param subjectControl the subject control | |
| 779 */ | |
| 780 public void install(Control subjectControl) { | |
| 781 if (fSubjectControl !is null && !fSubjectControl.isDisposed() && fSubjectControlDisposeListener !is null) | |
| 782 fSubjectControl.removeDisposeListener(fSubjectControlDisposeListener); | |
| 783 | |
| 784 fSubjectControl= subjectControl; | |
| 785 | |
| 786 if (fSubjectControl !is null) | |
| 787 fSubjectControl.addDisposeListener(getSubjectControlDisposeListener()); | |
| 788 | |
| 789 if (fInformationControlCloser !is null) | |
| 790 fInformationControlCloser.setSubjectControl(subjectControl); | |
| 791 | |
| 792 setEnabled(true); | |
| 793 fDisposed= false; | |
| 794 } | |
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795 |
| 129 | 796 /** |
| 797 * Returns the dispose listener which gets added | |
| 798 * to the subject control. | |
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799 * |
| 129 | 800 * @return the dispose listener |
| 801 * @since 3.1 | |
| 802 */ | |
| 803 private DisposeListener getSubjectControlDisposeListener() { | |
| 804 if (fSubjectControlDisposeListener is null) { | |
| 135 | 805 fSubjectControlDisposeListener= new class() DisposeListener { |
| 129 | 806 public void widgetDisposed(DisposeEvent e) { |
| 807 handleSubjectControlDisposed(); | |
| 808 } | |
| 809 }; | |
| 810 } | |
| 811 return fSubjectControlDisposeListener; | |
| 812 } | |
| 813 | |
| 814 /** | |
| 815 * Returns the subject control of this manager/information control. | |
| 816 * | |
| 817 * @return the subject control | |
| 818 */ | |
| 819 protected Control getSubjectControl() { | |
| 820 return fSubjectControl; | |
| 821 } | |
| 822 | |
| 823 /** | |
| 824 * Returns the actual subject area. | |
| 825 * | |
| 826 * @return the actual subject area | |
| 827 */ | |
| 828 protected Rectangle getSubjectArea() { | |
| 829 return fSubjectArea; | |
| 830 } | |
| 831 | |
| 832 /** | |
| 833 * Sets the enable state of this manager. | |
| 834 * | |
| 835 * @param enabled the enable state | |
| 836 * @deprecated visibility will be changed to protected | |
| 837 */ | |
| 838 public void setEnabled(bool enabled) { | |
| 839 fEnabled= enabled; | |
| 840 } | |
| 841 | |
| 842 /** | |
| 843 * Returns whether this manager is enabled or not. | |
| 844 * | |
| 845 * @return <code>true</code> if this manager is enabled otherwise <code>false</code> | |
| 846 */ | |
| 847 protected bool isEnabled() { | |
| 848 return fEnabled; | |
| 849 } | |
| 850 | |
| 851 /** | |
| 852 * Computes the size constraints of the information control in points based on the | |
| 853 * default font of the given subject control as well as the size constraints in character | |
| 854 * width. | |
| 855 * | |
| 856 * @param subjectControl the subject control | |
| 857 * @param informationControl the information control whose size constraints are computed | |
| 858 * @return the computed size constraints in points | |
| 859 */ | |
| 860 protected Point computeSizeConstraints(Control subjectControl, IInformationControl informationControl) { | |
| 861 | |
| 862 if (fSizeConstraints is null) { | |
| 138 | 863 if ( cast(IInformationControlExtension5)informationControl ) { |
| 134 | 864 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) informationControl; |
| 129 | 865 fSizeConstraints= iControl5.computeSizeConstraints(fWidthConstraint, fHeightConstraint); |
| 866 if (fSizeConstraints !is null) | |
| 867 return Geometry.copy(fSizeConstraints); | |
| 868 } | |
| 869 if (subjectControl is null) | |
| 870 return null; | |
| 871 | |
| 872 GC gc= new GC(subjectControl); | |
| 873 gc.setFont(subjectControl.getFont()); | |
| 874 int width= gc.getFontMetrics().getAverageCharWidth(); | |
| 875 int height = gc.getFontMetrics().getHeight(); | |
| 876 gc.dispose(); | |
| 877 | |
| 878 fSizeConstraints= new Point (fWidthConstraint * width, fHeightConstraint * height); | |
| 879 } | |
| 880 | |
| 881 return new Point(fSizeConstraints.x, fSizeConstraints.y); | |
| 882 } | |
| 883 | |
| 884 /** | |
| 885 * Computes the size constraints of the information control in points. | |
| 886 * | |
| 887 * @param subjectControl the subject control | |
| 888 * @param subjectArea the subject area | |
| 889 * @param informationControl the information control whose size constraints are computed | |
| 890 * @return the computed size constraints in points | |
| 891 * @since 3.0 | |
| 892 */ | |
| 893 protected Point computeSizeConstraints(Control subjectControl, Rectangle subjectArea, IInformationControl informationControl) { | |
| 894 return computeSizeConstraints(subjectControl, informationControl); | |
| 895 } | |
| 896 | |
| 897 /** | |
| 898 * Handles the disposal of the information control. By default, the information | |
| 899 * control closer is stopped. | |
| 900 */ | |
| 901 protected void handleInformationControlDisposed() { | |
| 902 | |
| 903 storeInformationControlBounds(); | |
| 904 | |
| 138 | 905 if ( cast(IInformationControlExtension5)fInformationControl ) |
| 129 | 906 fSizeConstraints= null; |
| 907 fInformationControl= null; | |
| 908 if (fInformationControlCloser !is null) { | |
| 909 fInformationControlCloser.setInformationControl(null); //XXX: null is against the spec | |
| 910 fInformationControlCloser.stop(); | |
| 911 } | |
| 912 } | |
| 913 | |
| 914 /** | |
| 915 * Returns the information control. If the information control has not been created yet, | |
| 916 * it is automatically created. | |
| 917 * | |
| 918 * @return the information control | |
| 919 */ | |
| 920 protected IInformationControl getInformationControl() { | |
| 921 | |
| 922 if (fDisposed) | |
| 923 return fInformationControl; | |
| 924 | |
| 925 IInformationControlCreator creator= null; | |
| 926 | |
| 927 if (fCustomInformationControlCreator is null) { | |
| 928 creator= fInformationControlCreator; | |
| 929 if (fIsCustomInformationControl && fInformationControl !is null) { | |
| 138 | 930 if ( cast(IInformationControlExtension5)fInformationControl ) |
| 129 | 931 fSizeConstraints= null; |
| 932 fInformationControl.dispose(); | |
| 933 fInformationControl= null; | |
| 934 } | |
| 935 fIsCustomInformationControl= false; | |
| 936 | |
| 937 } else { | |
| 938 | |
| 939 creator= fCustomInformationControlCreator; | |
| 138 | 940 if ( cast(IInformationControlCreatorExtension)creator ) { |
| 134 | 941 IInformationControlCreatorExtension extension= cast(IInformationControlCreatorExtension) creator; |
| 129 | 942 if (fInformationControl !is null && extension.canReuse(fInformationControl)) |
| 943 return fInformationControl; | |
| 944 } | |
| 945 if (fInformationControl !is null) { | |
| 138 | 946 if ( cast(IInformationControlExtension5)fInformationControl ) |
| 129 | 947 fSizeConstraints= null; |
| 948 fInformationControl.dispose(); | |
| 949 fInformationControl= null; | |
| 950 } | |
| 951 fIsCustomInformationControl= true; | |
| 952 } | |
| 953 | |
| 954 if (fInformationControl is null) { | |
| 955 fInformationControl= creator.createInformationControl(fSubjectControl.getShell()); | |
| 135 | 956 fInformationControl.addDisposeListener(new class() DisposeListener { |
| 129 | 957 public void widgetDisposed(DisposeEvent e) { |
| 958 handleInformationControlDisposed(); | |
| 959 } | |
| 960 }); | |
| 961 | |
| 962 if (fInformationControlCloser !is null) | |
| 963 fInformationControlCloser.setInformationControl(fInformationControl); | |
| 964 } | |
| 965 | |
| 966 return fInformationControl; | |
| 967 } | |
| 968 | |
| 969 /** | |
| 970 * Computes the display location of the information control. The location is computed | |
| 971 * considering the given subject area, the anchor at the subject area, and the | |
| 972 * size of the information control. This method does not care about whether the information | |
| 973 * control would be completely visible when placed at the result location. | |
| 974 * | |
| 975 * @param subjectArea the subject area | |
| 976 * @param controlSize the size of the information control | |
| 977 * @param anchor the anchor at the subject area | |
| 978 * @return the display location of the information control | |
| 979 */ | |
| 980 protected Point computeLocation(Rectangle subjectArea, Point controlSize, Anchor anchor) { | |
| 981 int xShift= 0; | |
| 982 int yShift= 0; | |
| 983 | |
| 984 switch (anchor.getSWTFlag()) { | |
| 985 case DWT.CENTER: | |
| 986 Point subjectControlSize= fSubjectControl.getSize(); | |
| 987 Point location= new Point(subjectControlSize.x / 2, subjectControlSize.y / 2); | |
| 988 location.x -= (controlSize.x / 2); | |
| 989 location.y -= (controlSize.y / 2); | |
| 990 return fSubjectControl.toDisplay(location); | |
| 991 case DWT.BOTTOM: | |
| 992 yShift= subjectArea.height + fMarginY; | |
| 993 break; | |
| 994 case DWT.RIGHT: | |
| 995 xShift= fMarginX + subjectArea.width; | |
| 996 break; | |
| 997 case DWT.TOP: | |
| 998 yShift= -controlSize.y - fMarginY; | |
| 999 break; | |
| 1000 case DWT.LEFT: | |
| 1001 xShift= -controlSize.x - fMarginX; | |
| 1002 break; | |
| 1003 } | |
| 1004 | |
| 1005 bool isRTL= fSubjectControl !is null && (fSubjectControl.getStyle() & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1006 if (isRTL) | |
| 1007 xShift += controlSize.x; | |
| 1008 | |
| 1009 return fSubjectControl.toDisplay(new Point(subjectArea.x + xShift, subjectArea.y + yShift)); | |
| 1010 } | |
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1011 |
| 129 | 1012 /** |
| 1013 * Computes the area available for an information control given an anchor and the subject area | |
| 1014 * within <code>bounds</code>. | |
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1015 * |
| 129 | 1016 * @param subjectArea the subject area |
| 1017 * @param bounds the bounds | |
| 1018 * @param anchor the anchor at the subject area | |
| 1019 * @return the area available at the given anchor relative to the subject area, confined to the | |
| 1020 * monitor's client area | |
| 1021 * @since 3.3 | |
| 1022 */ | |
| 1023 protected Rectangle computeAvailableArea(Rectangle subjectArea, Rectangle bounds, Anchor anchor) { | |
| 1024 Rectangle area; | |
| 1025 switch (anchor.getSWTFlag()) { | |
| 1026 case DWT.CENTER: | |
| 1027 area= bounds; | |
| 1028 break; | |
| 1029 case DWT.BOTTOM: | |
| 1030 int y= subjectArea.y + subjectArea.height + fMarginY; | |
| 1031 area= new Rectangle(bounds.x, y, bounds.width, bounds.y + bounds.height - y); | |
| 1032 break; | |
| 1033 case DWT.RIGHT: | |
| 1034 int x= subjectArea.x + subjectArea.width + fMarginX; | |
| 1035 area= new Rectangle(x, bounds.y, bounds.x + bounds.width - x, bounds.height); | |
| 1036 break; | |
| 1037 case DWT.TOP: | |
| 1038 area= new Rectangle(bounds.x, bounds.y, bounds.width, subjectArea.y - bounds.y - fMarginY); | |
| 1039 break; | |
| 1040 case DWT.LEFT: | |
| 1041 area= new Rectangle(bounds.x, bounds.y, subjectArea.x - bounds.x - fMarginX, bounds.height); | |
| 1042 break; | |
| 1043 default: | |
| 1044 Assert.isLegal(false); | |
| 1045 return null; | |
| 1046 } | |
| 1047 | |
| 1048 // Don't return negative areas if the subjectArea overlaps with the monitor bounds. | |
| 1049 area.intersect(bounds); | |
| 1050 return area; | |
| 1051 } | |
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1052 |
| 129 | 1053 /** |
| 1054 * Checks whether a control of the given size at the given location would be completely visible | |
| 1055 * in the given display area when laid out by using the given anchor. If not, this method tries | |
| 1056 * to shift the control orthogonal to the direction given by the anchor to make it visible. If possible | |
| 1057 * it updates the location.<p> | |
| 1058 * This method returns <code>true</code> if the potentially updated position results in a | |
| 1059 * completely visible control, or <code>false</code> otherwise. | |
| 1060 * | |
| 1061 * | |
| 1062 * @param location the location of the control | |
| 1063 * @param size the size of the control | |
| 1064 * @param displayArea the display area in which the control should be visible | |
| 1065 * @param anchor anchor for lying out the control | |
| 1066 * @return <code>true</code>if the updated location is useful | |
| 1067 */ | |
| 1068 protected bool updateLocation(Point location, Point size, Rectangle displayArea, Anchor anchor) { | |
| 1069 | |
| 1070 int displayLowerRightX= displayArea.x + displayArea.width; | |
| 1071 int displayLowerRightY= displayArea.y + displayArea.height; | |
| 1072 int lowerRightX= location.x + size.x; | |
| 1073 int lowerRightY= location.y + size.y; | |
| 1074 | |
| 1075 if (ANCHOR_BOTTOM is anchor || ANCHOR_TOP is anchor) { | |
| 1076 | |
| 1077 if (ANCHOR_BOTTOM is anchor) { | |
| 1078 if (lowerRightY > displayLowerRightY) | |
| 1079 return false; | |
| 1080 } else { | |
| 1081 if (location.y < displayArea.y) | |
| 1082 return false; | |
| 1083 } | |
| 1084 | |
| 1085 if (lowerRightX > displayLowerRightX) | |
| 1086 location.x= location.x - (lowerRightX - displayLowerRightX); | |
| 1087 | |
| 1088 return (location.x >= displayArea.x && location.y >= displayArea.y); | |
| 1089 | |
| 1090 } else if (ANCHOR_RIGHT is anchor || ANCHOR_LEFT is anchor) { | |
| 1091 | |
| 1092 if (ANCHOR_RIGHT is anchor) { | |
| 1093 if (lowerRightX > displayLowerRightX) | |
| 1094 return false; | |
| 1095 } else { | |
| 1096 if (location.x < displayArea.x) | |
| 1097 return false; | |
| 1098 } | |
| 1099 | |
| 1100 if (lowerRightY > displayLowerRightY) | |
| 1101 location.y= location.y - (lowerRightY - displayLowerRightY); | |
| 1102 | |
| 1103 return (location.x >= displayArea.x && location.y >= displayArea.y); | |
| 1104 | |
| 1105 } else if (ANCHOR_GLOBAL is anchor) { | |
| 1106 | |
| 1107 if (lowerRightX > displayLowerRightX) | |
| 1108 location.x= location.x - (lowerRightX - displayLowerRightX); | |
| 1109 | |
| 1110 if (lowerRightY > displayLowerRightY) | |
| 1111 location.y= location.y - (lowerRightY - displayLowerRightY); | |
| 1112 | |
| 1113 return (location.x >= displayArea.x && location.y >= displayArea.y); | |
| 1114 } | |
| 1115 | |
| 1116 return false; | |
| 1117 } | |
| 1118 | |
| 1119 /** | |
| 1120 * Returns the next fallback anchor as specified by this manager's | |
| 1121 * fallback anchor sequence. | |
| 1122 * <p> | |
| 1123 * The fallback anchor for the given anchor is the one that comes directly after | |
| 1124 * the given anchor or is the first one in the sequence if the given anchor is the | |
| 1125 * last one in the sequence. | |
| 1126 * </p> | |
| 1127 * <p> | |
| 1128 * Note: It is the callers responsibility to prevent an endless loop i.e. to test | |
| 1129 * whether a given anchor has already been used once. | |
| 1130 * then | |
| 1131 * </p> | |
| 1132 * | |
| 1133 * @param anchor the current anchor | |
| 1134 * @return the next fallback anchor or <code>null</code> if no fallback anchor is available | |
| 1135 */ | |
| 1136 protected Anchor getNextFallbackAnchor(Anchor anchor) { | |
| 1137 | |
| 1138 if (anchor is null || fFallbackAnchors is null) | |
| 1139 return null; | |
| 1140 | |
| 1141 for (int i= 0; i < fFallbackAnchors.length; i++) { | |
| 1142 if (fFallbackAnchors[i] is anchor) | |
| 1143 return fFallbackAnchors[i + 1 is fFallbackAnchors.length ? 0 : i + 1]; | |
| 1144 } | |
| 1145 | |
| 1146 return null; | |
| 1147 } | |
| 1148 | |
| 1149 /** | |
| 1150 * Computes the location of the information control depending on the | |
| 1151 * subject area and the size of the information control. This method attempts | |
| 1152 * to find a location at which the information control lies completely in the display's | |
| 1153 * client area while honoring the manager's default anchor. If this isn't possible using the | |
| 1154 * default anchor, the fallback anchors are tried out. | |
| 1155 * | |
| 1156 * @param subjectArea the information area | |
| 1157 * @param controlSize the size of the information control | |
| 1158 * @return the computed location of the information control | |
| 1159 */ | |
| 1160 protected Point computeInformationControlLocation(Rectangle subjectArea, Point controlSize) { | |
| 1161 Rectangle subjectAreaDisplayRelative= Geometry.toDisplay(fSubjectControl, subjectArea); | |
| 1162 | |
| 1163 Point upperLeft; | |
| 1164 Anchor testAnchor= fAnchor; | |
| 1165 Rectangle bestBounds= null; | |
| 1166 int bestArea= Integer.MIN_VALUE; | |
| 1167 Anchor bestAnchor= null; | |
| 1168 do { | |
| 1169 | |
| 1170 upperLeft= computeLocation(subjectArea, controlSize, testAnchor); | |
| 1171 Monitor monitor= getClosestMonitor(subjectAreaDisplayRelative, testAnchor); | |
| 1172 if (updateLocation(upperLeft, controlSize, monitor.getClientArea(), testAnchor)) | |
| 1173 return upperLeft; | |
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1174 |
| 129 | 1175 // compute available area for this anchor and update if better than best |
| 1176 Rectangle available= computeAvailableArea(subjectAreaDisplayRelative, monitor.getClientArea(), testAnchor); | |
| 1177 Rectangle proposed= new Rectangle(upperLeft.x, upperLeft.y, controlSize.x, controlSize.y); | |
| 1178 available.intersect(proposed); | |
| 1179 int area= available.width * available.height; | |
| 1180 if (area > bestArea) { | |
| 1181 bestArea= area; | |
| 1182 bestBounds= available; | |
| 1183 bestAnchor= testAnchor; | |
| 1184 } | |
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1185 |
| 129 | 1186 testAnchor= getNextFallbackAnchor(testAnchor); |
| 1187 | |
| 1188 } while (testAnchor !is fAnchor && testAnchor !is null); | |
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1189 |
| 129 | 1190 // no anchor is perfect - select the one with larges area and set the size to not overlap with the subjectArea |
| 1191 if (bestAnchor !is ANCHOR_GLOBAL) | |
| 1192 Geometry.set(controlSize, Geometry.getSize(bestBounds)); | |
| 1193 return Geometry.getLocation(bestBounds); | |
| 1194 } | |
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1195 |
| 129 | 1196 /** |
| 1197 * Gets the closest monitor given an anchor and the subject area. | |
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1198 * |
| 129 | 1199 * @param area the subject area |
| 1200 * @param anchor the anchor | |
| 1201 * @return the monitor closest to the edge of <code>area</code> defined by | |
| 1202 * <code>anchor</code> | |
| 1203 * @since 3.3 | |
| 1204 */ | |
| 1205 private Monitor getClosestMonitor(Rectangle area, Anchor anchor) { | |
| 1206 Point center; | |
| 1207 if (ANCHOR_GLOBAL is anchor) | |
| 1208 center= Geometry.centerPoint(area); | |
| 1209 else | |
| 1210 center= Geometry.centerPoint(Geometry.getExtrudedEdge(area, 0, anchor.getSWTFlag())); | |
| 1211 return getClosestMonitor(fSubjectControl.getDisplay(), Geometry.createRectangle(center, new Point(0, 0))); | |
| 1212 } | |
| 1213 | |
| 1214 /** | |
| 1215 * Copied from dwtx.jface.window.Window. Returns the monitor whose client area contains | |
| 1216 * the given point. If no monitor contains the point, returns the monitor that is closest to the | |
| 1217 * point. If this is ever made public, it should be moved into a separate utility class. | |
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1218 * |
| 129 | 1219 * @param display the display to search for monitors |
| 1220 * @param rectangle the rectangle to find the closest monitor for (display coordinates) | |
| 1221 * @return the monitor closest to the given point | |
| 1222 * @since 3.3 | |
| 1223 */ | |
| 1224 private Monitor getClosestMonitor(Display display, Rectangle rectangle) { | |
| 1225 int closest = Integer.MAX_VALUE; | |
| 1226 | |
| 1227 Point toFind= Geometry.centerPoint(rectangle); | |
| 1228 Monitor[] monitors = display.getMonitors(); | |
| 1229 Monitor result = monitors[0]; | |
| 1230 | |
| 1231 for (int idx = 0; idx < monitors.length; idx++) { | |
| 1232 Monitor current = monitors[idx]; | |
| 1233 | |
| 1234 Rectangle clientArea = current.getClientArea(); | |
| 1235 | |
| 1236 if (clientArea.contains(toFind)) { | |
| 1237 return current; | |
| 1238 } | |
| 1239 | |
| 1240 int distance = Geometry.distanceSquared(Geometry.centerPoint(clientArea), toFind); | |
| 1241 if (distance < closest) { | |
| 1242 closest = distance; | |
| 1243 result = current; | |
| 1244 } | |
| 1245 } | |
| 1246 | |
| 1247 return result; | |
| 1248 } | |
| 1249 | |
| 1250 /** | |
| 1251 * Computes information to be displayed as well as the subject area | |
| 1252 * and initiates that this information is presented in the information control. | |
| 1253 * This happens only if this controller is enabled. | |
| 1254 */ | |
| 1255 public void showInformation() { | |
| 1256 if (fEnabled) | |
| 1257 doShowInformation(); | |
| 1258 } | |
| 1259 | |
| 1260 /** | |
| 1261 * Computes information to be displayed as well as the subject area | |
| 1262 * and initiates that this information is presented in the information control. | |
| 1263 */ | |
| 1264 protected void doShowInformation() { | |
| 1265 fSubjectArea= null; | |
| 1266 fInformation= null; | |
| 1267 computeInformation(); | |
| 1268 } | |
| 1269 | |
| 1270 /** | |
| 1271 * Presents the information in the information control or hides the information | |
| 1272 * control if no information should be presented. The information has previously | |
| 1273 * been set using <code>setInformation</code>. | |
| 1274 */ | |
| 1275 protected void presentInformation() { | |
| 1276 bool hasContents= false; | |
| 138 | 1277 if ( cast(String)fInformation ) |
| 134 | 1278 hasContents= (cast(String)fInformation).trim().length() > 0; |
| 129 | 1279 else |
| 1280 hasContents= (fInformation !is null); | |
| 1281 | |
| 1282 if (fSubjectArea !is null && hasContents) | |
| 1283 internalShowInformationControl(fSubjectArea, fInformation); | |
| 1284 else | |
| 1285 hideInformationControl(); | |
| 1286 } | |
| 1287 | |
| 1288 /** | |
| 1289 * Opens the information control with the given information and the specified | |
| 1290 * subject area. It also activates the information control closer. | |
| 1291 * | |
| 1292 * @param subjectArea the information area | |
| 1293 * @param information the information | |
| 1294 */ | |
| 1295 private void internalShowInformationControl(Rectangle subjectArea, Object information) { | |
| 138 | 1296 if ( cast(InformationControlReplacer)this ) { |
| 134 | 1297 (cast(InformationControlReplacer) this).showInformationControl(subjectArea, information); |
| 129 | 1298 return; |
| 1299 } | |
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1300 |
| 129 | 1301 IInformationControl informationControl= getInformationControl(); |
| 1302 if (informationControl !is null) { | |
| 1303 | |
| 1304 Point sizeConstraints= computeSizeConstraints(fSubjectControl, fSubjectArea, informationControl); | |
| 138 | 1305 if ( cast(IInformationControlExtension3)informationControl ) { |
| 134 | 1306 IInformationControlExtension3 iControl3= cast(IInformationControlExtension3) informationControl; |
| 129 | 1307 Rectangle trim= iControl3.computeTrim(); |
| 1308 sizeConstraints.x += trim.width; | |
| 1309 sizeConstraints.y += trim.height; | |
| 1310 } | |
| 1311 informationControl.setSizeConstraints(sizeConstraints.x, sizeConstraints.y); | |
| 1312 | |
| 138 | 1313 if ( cast(IInformationControlExtension2)informationControl ) |
| 134 | 1314 (cast(IInformationControlExtension2)informationControl).setInput(information); |
| 129 | 1315 else |
| 1316 informationControl.setInformation(information.toString()); | |
| 1317 | |
| 138 | 1318 if ( cast(IInformationControlExtension)informationControl ) { |
| 134 | 1319 IInformationControlExtension extension= cast(IInformationControlExtension)informationControl; |
| 129 | 1320 if (!extension.hasContents()) |
| 1321 return; | |
| 1322 } | |
| 1323 | |
| 1324 Point size= null; | |
| 1325 Point location= null; | |
| 1326 Rectangle bounds= restoreInformationControlBounds(); | |
| 1327 | |
| 1328 if (bounds !is null) { | |
| 1329 if (bounds.x > -1 && bounds.y > -1) | |
| 1330 location= Geometry.getLocation(bounds); | |
| 1331 | |
| 1332 if (bounds.width > -1 && bounds.height > -1) | |
| 1333 size= Geometry.getSize(bounds); | |
| 1334 } | |
| 1335 | |
| 1336 if (size is null) | |
| 1337 size= informationControl.computeSizeHint(); | |
| 1338 | |
| 1339 if (fEnforceAsMinimalSize) | |
| 1340 size= Geometry.max(size, sizeConstraints); | |
| 1341 if (fEnforceAsMaximalSize) | |
| 1342 size= Geometry.min(size, sizeConstraints); | |
| 1343 | |
| 1344 if (location is null) | |
| 1345 location= computeInformationControlLocation(subjectArea, size); | |
| 1346 | |
| 1347 Rectangle controlBounds= Geometry.createRectangle(location, size); | |
| 1348 cropToClosestMonitor(controlBounds); | |
| 1349 location= Geometry.getLocation(controlBounds); | |
| 1350 size= Geometry.getSize(controlBounds); | |
| 1351 informationControl.setLocation(location); | |
| 1352 informationControl.setSize(size.x, size.y); | |
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1353 |
| 129 | 1354 showInformationControl(subjectArea); |
| 1355 } | |
| 1356 } | |
| 1357 | |
| 1358 /** | |
| 1359 * Crops the given bounds such that they lie completely on the closest monitor. | |
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1360 * |
| 129 | 1361 * @param bounds shell bounds to crop |
| 1362 * @since 3.4 | |
| 1363 */ | |
| 1364 void cropToClosestMonitor(Rectangle bounds) { | |
| 1365 Rectangle monitorBounds= getClosestMonitor(fSubjectControl.getDisplay(), bounds).getClientArea(); | |
| 1366 bounds.intersect(monitorBounds); | |
| 1367 } | |
| 1368 | |
| 1369 /** | |
| 1370 * Hides the information control and stops the information control closer. | |
| 1371 */ | |
| 1372 protected void hideInformationControl() { | |
| 1373 if (fInformationControl !is null) { | |
| 1374 storeInformationControlBounds(); | |
| 1375 fInformationControl.setVisible(false); | |
| 1376 if (fInformationControlCloser !is null) | |
| 1377 fInformationControlCloser.stop(); | |
| 1378 } | |
| 1379 } | |
| 1380 | |
| 1381 /** | |
| 1382 * Shows the information control and starts the information control closer. | |
| 1383 * This method may not be called by clients. | |
| 1384 * | |
| 1385 * @param subjectArea the information area | |
| 1386 */ | |
| 1387 protected void showInformationControl(Rectangle subjectArea) { | |
| 1388 fInformationControl.setVisible(true); | |
| 1389 | |
| 1390 if (fTakesFocusWhenVisible) | |
| 1391 fInformationControl.setFocus(); | |
| 1392 | |
| 1393 if (fInformationControlCloser !is null) | |
| 1394 fInformationControlCloser.start(subjectArea); | |
| 1395 } | |
| 1396 | |
| 1397 /** | |
| 1398 * Replaces this manager's information control as defined by | |
| 1399 * the information control replacer. | |
| 1400 * <strong>Must only be called when {@link #fInformationControl} instanceof {@link IInformationControlExtension3}!</strong> | |
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1401 * |
| 129 | 1402 * @param takeFocus <code>true</code> iff the replacing information control should take focus |
| 1403 * | |
| 1404 * @since 3.4 | |
| 1405 */ | |
| 1406 void replaceInformationControl(bool takeFocus) { | |
| 1407 if (fInformationControlReplacer !is null && canReplace(fInformationControl)) { | |
| 134 | 1408 IInformationControlExtension3 iControl3= cast(IInformationControlExtension3) fInformationControl; |
| 129 | 1409 Rectangle b= iControl3.getBounds(); |
| 1410 Rectangle t= iControl3.computeTrim(); | |
| 1411 Rectangle contentBounds= new Rectangle(b.x - t.x, b.y - t.y, b.width - t.width, b.height - t.height); | |
| 134 | 1412 IInformationControlCreator informationPresenterControlCreator= (cast(IInformationControlExtension5) fInformationControl).getInformationPresenterControlCreator(); |
| 129 | 1413 fInformationControlReplacer.replaceInformationControl(informationPresenterControlCreator, contentBounds, fInformation, fSubjectArea, takeFocus); |
| 1414 } | |
| 1415 hideInformationControl(); | |
| 1416 } | |
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1417 |
| 129 | 1418 /** |
| 1419 * Disposes this manager's information control. | |
| 1420 */ | |
| 1421 public void disposeInformationControl() { | |
| 1422 if (fInformationControl !is null) { | |
| 1423 fInformationControl.dispose(); | |
| 1424 handleInformationControlDisposed(); | |
| 1425 } | |
| 1426 } | |
| 1427 | |
| 1428 /** | |
| 1429 * Disposes this manager and if necessary all dependent parts such as | |
| 1430 * the information control. For symmetry it first disables this manager. | |
| 1431 */ | |
| 1432 public void dispose() { | |
| 1433 if (!fDisposed) { | |
| 1434 | |
| 1435 fDisposed= true; | |
| 1436 | |
| 1437 setEnabled(false); | |
| 1438 disposeInformationControl(); | |
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1439 |
| 129 | 1440 if (fInformationControlReplacer !is null) { |
| 1441 fInformationControlReplacer.dispose(); | |
| 1442 fInformationControlReplacer= null; | |
| 1443 } | |
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1444 |
| 129 | 1445 if (fSubjectControl !is null && !fSubjectControl.isDisposed() && fSubjectControlDisposeListener !is null) |
| 1446 fSubjectControl.removeDisposeListener(fSubjectControlDisposeListener); | |
| 1447 fSubjectControl= null; | |
| 1448 fSubjectControlDisposeListener= null; | |
| 1449 | |
| 1450 fIsCustomInformationControl= false; | |
| 1451 fCustomInformationControlCreator= null; | |
| 1452 fInformationControlCreator= null; | |
| 1453 fInformationControlCloser= null; | |
| 1454 } | |
| 1455 } | |
| 1456 | |
| 1457 // ------ control's size handling dialog settings ------ | |
| 1458 | |
| 1459 /** | |
| 1460 * Stores the information control's bounds. | |
| 1461 * | |
| 1462 * @since 3.0 | |
| 1463 */ | |
| 1464 protected void storeInformationControlBounds() { | |
| 1465 if (fDialogSettings is null || fInformationControl is null || !(fIsRestoringLocation || fIsRestoringSize)) | |
| 1466 return; | |
| 1467 | |
| 138 | 1468 if (!( cast(IInformationControlExtension3)fInformationControl )) |
| 129 | 1469 throw new UnsupportedOperationException(); |
| 1470 | |
| 134 | 1471 bool controlRestoresSize= (cast(IInformationControlExtension3)fInformationControl).restoresSize(); |
| 1472 bool controlRestoresLocation= (cast(IInformationControlExtension3)fInformationControl).restoresLocation(); | |
| 129 | 1473 |
| 134 | 1474 Rectangle bounds= (cast(IInformationControlExtension3)fInformationControl).getBounds(); |
| 129 | 1475 if (bounds is null) |
| 1476 return; | |
| 1477 | |
| 1478 if (fIsRestoringSize && controlRestoresSize) { | |
| 1479 fDialogSettings.put(STORE_SIZE_WIDTH, bounds.width); | |
| 1480 fDialogSettings.put(STORE_SIZE_HEIGHT, bounds.height); | |
| 1481 } | |
| 1482 if (fIsRestoringLocation && controlRestoresLocation) { | |
| 1483 fDialogSettings.put(STORE_LOCATION_X, bounds.x); | |
| 1484 fDialogSettings.put(STORE_LOCATION_Y, bounds.y); | |
| 1485 } | |
| 1486 } | |
| 1487 /** | |
| 1488 * Restores the information control's bounds. | |
| 1489 * | |
| 1490 * @return the stored bounds | |
| 1491 * @since 3.0 | |
| 1492 */ | |
| 1493 protected Rectangle restoreInformationControlBounds() { | |
| 1494 if (fDialogSettings is null || !(fIsRestoringLocation || fIsRestoringSize)) | |
| 1495 return null; | |
| 1496 | |
| 138 | 1497 if (!( cast(IInformationControlExtension3)fInformationControl )) |
| 129 | 1498 throw new UnsupportedOperationException(); |
| 1499 | |
| 134 | 1500 bool controlRestoresSize= (cast(IInformationControlExtension3)fInformationControl).restoresSize(); |
| 1501 bool controlRestoresLocation= (cast(IInformationControlExtension3)fInformationControl).restoresLocation(); | |
| 129 | 1502 |
| 1503 Rectangle bounds= new Rectangle(-1, -1, -1, -1); | |
| 1504 | |
| 1505 if (fIsRestoringSize && controlRestoresSize) { | |
| 1506 try { | |
| 1507 bounds.width= fDialogSettings.getInt(STORE_SIZE_WIDTH); | |
| 1508 bounds.height= fDialogSettings.getInt(STORE_SIZE_HEIGHT); | |
| 1509 } catch (NumberFormatException ex) { | |
| 1510 bounds.width= -1; | |
| 1511 bounds.height= -1; | |
| 1512 } | |
| 1513 } | |
| 1514 | |
| 1515 if (fIsRestoringLocation && controlRestoresLocation) { | |
| 1516 try { | |
| 1517 bounds.x= fDialogSettings.getInt(STORE_LOCATION_X); | |
| 1518 bounds.y= fDialogSettings.getInt(STORE_LOCATION_Y); | |
| 1519 } catch (NumberFormatException ex) { | |
| 1520 bounds.x= -1; | |
| 1521 bounds.y= -1; | |
| 1522 } | |
| 1523 } | |
| 1524 | |
| 1525 // sanity check | |
| 1526 if (bounds.x is -1 && bounds.y is -1 && bounds.width is -1 && bounds.height is -1) | |
| 1527 return null; | |
| 1528 | |
| 1529 Rectangle maxBounds= null; | |
| 1530 if (fSubjectControl !is null && !fSubjectControl.isDisposed()) | |
| 1531 maxBounds= fSubjectControl.getDisplay().getBounds(); | |
| 1532 else { | |
| 1533 // fallback | |
| 1534 Display display= Display.getCurrent(); | |
| 1535 if (display is null) | |
| 1536 display= Display.getDefault(); | |
| 1537 if (display !is null && !display.isDisposed()) | |
| 1538 maxBounds= display.getBounds(); | |
| 1539 } | |
| 1540 | |
| 1541 | |
| 1542 if (bounds.width > -1 && bounds.height > -1) { | |
| 1543 if (maxBounds !is null) { | |
| 1544 bounds.width= Math.min(bounds.width, maxBounds.width); | |
| 1545 bounds.height= Math.min(bounds.height, maxBounds.height); | |
| 1546 } | |
| 1547 | |
| 1548 // Enforce an absolute minimal size | |
| 1549 bounds.width= Math.max(bounds.width, 30); | |
| 1550 bounds.height= Math.max(bounds.height, 30); | |
| 1551 } | |
| 1552 | |
| 1553 if (bounds.x > -1 && bounds.y > -1 && maxBounds !is null) { | |
| 1554 bounds.x= Math.max(bounds.x, maxBounds.x); | |
| 1555 bounds.y= Math.max(bounds.y, maxBounds.y); | |
| 1556 | |
| 1557 if (bounds .width > -1 && bounds.height > -1) { | |
| 1558 bounds.x= Math.min(bounds.x, maxBounds.width - bounds.width); | |
| 1559 bounds.y= Math.min(bounds.y, maxBounds.height - bounds.height); | |
| 1560 } | |
| 1561 } | |
| 1562 | |
| 1563 return bounds; | |
| 1564 } | |
| 1565 | |
| 1566 /** | |
| 1567 * Returns an adapter that gives access to internal methods. | |
| 1568 * <p> | |
| 1569 * <strong>Note:</strong> This method is not intended to be referenced or overridden by clients.</p> | |
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parents:
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diff
changeset
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1570 * |
| 129 | 1571 * @return the replaceable information control accessor |
| 1572 * @since 3.4 | |
| 1573 * @noreference This method is not intended to be referenced by clients. | |
| 1574 * @nooverride This method is not intended to be re-implemented or extended by clients. | |
| 1575 */ | |
| 1576 public InternalAccessor getInternalAccessor() { | |
| 1577 return new MyInternalAccessor(); | |
| 1578 } | |
| 1579 } |