Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/revisions/RevisionPainter.d @ 147:000f9136b8f7
final
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 24 Aug 2008 22:35:05 +0200 |
| parents | 75302ef3f92f |
| children | 5cf141e43417 |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2006, 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 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.internal.text.revisions.RevisionPainter; | |
| 14 | |
| 131 | 15 import dwtx.jface.internal.text.revisions.HunkComputer; // packageimport |
| 16 import dwtx.jface.internal.text.revisions.LineIndexOutOfBoundsException; // packageimport | |
| 17 import dwtx.jface.internal.text.revisions.Hunk; // packageimport | |
| 18 import dwtx.jface.internal.text.revisions.Colors; // packageimport | |
| 19 import dwtx.jface.internal.text.revisions.ChangeRegion; // packageimport | |
| 20 import dwtx.jface.internal.text.revisions.Range; // packageimport | |
| 21 import dwtx.jface.internal.text.revisions.RevisionSelectionProvider; // packageimport | |
| 22 | |
| 23 | |
| 129 | 24 import dwt.dwthelper.utils; |
| 25 | |
| 26 import java.util.ArrayList; | |
| 27 import java.util.Arrays; | |
| 28 import java.util.Collections; | |
| 29 import java.util.HashMap; | |
| 30 import java.util.Iterator; | |
| 31 import java.util.List; | |
| 32 import java.util.ListIterator; | |
| 33 import java.util.Map; | |
| 34 import java.util.Map.Entry; | |
| 35 | |
| 36 import dwt.DWT; | |
| 37 import dwt.custom.StyledText; | |
| 38 import dwt.events.DisposeEvent; | |
| 39 import dwt.events.DisposeListener; | |
| 40 import dwt.events.MouseEvent; | |
| 41 import dwt.events.MouseMoveListener; | |
| 42 import dwt.events.MouseTrackListener; | |
| 43 import dwt.graphics.Color; | |
| 44 import dwt.graphics.FontMetrics; | |
| 45 import dwt.graphics.GC; | |
| 46 import dwt.graphics.Point; | |
| 47 import dwt.graphics.RGB; | |
| 48 import dwt.graphics.Rectangle; | |
| 49 import dwt.widgets.Canvas; | |
| 50 import dwt.widgets.Control; | |
| 51 import dwt.widgets.Display; | |
| 52 import dwt.widgets.Event; | |
| 53 import dwt.widgets.Listener; | |
| 54 import dwt.widgets.Shell; | |
| 55 import dwtx.core.runtime.Assert; | |
| 56 import dwtx.core.runtime.ListenerList; | |
| 57 import dwtx.core.runtime.Platform; | |
| 58 import dwtx.jface.internal.text.html.BrowserInformationControl; | |
| 59 import dwtx.jface.internal.text.html.HTMLPrinter; | |
| 60 import dwtx.jface.resource.JFaceResources; | |
| 61 import dwtx.jface.text.AbstractReusableInformationControlCreator; | |
| 62 import dwtx.jface.text.BadLocationException; | |
| 63 import dwtx.jface.text.DefaultInformationControl; | |
| 64 import dwtx.jface.text.IDocument; | |
| 65 import dwtx.jface.text.IInformationControl; | |
| 66 import dwtx.jface.text.IInformationControlCreator; | |
| 67 import dwtx.jface.text.IRegion; | |
| 68 import dwtx.jface.text.ITextViewer; | |
| 69 import dwtx.jface.text.ITextViewerExtension5; | |
| 70 import dwtx.jface.text.JFaceTextUtil; | |
| 71 import dwtx.jface.text.Position; | |
| 72 import dwtx.jface.text.Region; | |
| 73 import dwtx.jface.text.information.IInformationProviderExtension2; | |
| 74 import dwtx.jface.text.revisions.IRevisionListener; | |
| 75 import dwtx.jface.text.revisions.IRevisionRulerColumnExtension; | |
| 76 import dwtx.jface.text.revisions.Revision; | |
| 77 import dwtx.jface.text.revisions.RevisionEvent; | |
| 78 import dwtx.jface.text.revisions.RevisionInformation; | |
| 79 import dwtx.jface.text.revisions.RevisionRange; | |
| 80 import dwtx.jface.text.revisions.IRevisionRulerColumnExtension.RenderingMode; | |
| 81 import dwtx.jface.text.source.Annotation; | |
| 82 import dwtx.jface.text.source.CompositeRuler; | |
| 83 import dwtx.jface.text.source.IAnnotationHover; | |
| 84 import dwtx.jface.text.source.IAnnotationHoverExtension; | |
| 85 import dwtx.jface.text.source.IAnnotationHoverExtension2; | |
| 86 import dwtx.jface.text.source.IAnnotationModel; | |
| 87 import dwtx.jface.text.source.IAnnotationModelExtension; | |
| 88 import dwtx.jface.text.source.IAnnotationModelListener; | |
| 89 import dwtx.jface.text.source.IChangeRulerColumn; | |
| 90 import dwtx.jface.text.source.ILineDiffer; | |
| 91 import dwtx.jface.text.source.ILineRange; | |
| 92 import dwtx.jface.text.source.ISharedTextColors; | |
| 93 import dwtx.jface.text.source.ISourceViewer; | |
| 94 import dwtx.jface.text.source.IVerticalRulerColumn; | |
| 95 import dwtx.jface.text.source.LineRange; | |
| 96 | |
| 97 | |
| 98 /** | |
| 99 * A strategy for painting the live annotate colors onto the vertical ruler column. It also manages | |
| 100 * the revision hover. | |
| 101 * | |
| 102 * @since 3.2 | |
| 103 */ | |
| 104 public final class RevisionPainter { | |
| 105 /** Tells whether this class is in debug mode. */ | |
| 106 private static bool DEBUG= "true".equalsIgnoreCase(Platform.getDebugOption("dwtx.jface.text.source/debug/RevisionRulerColumn")); //$NON-NLS-1$//$NON-NLS-2$ | |
| 107 | |
| 108 // RGBs provided by UI Designer | |
| 147 | 109 private static const RGB BY_DATE_START_COLOR= new RGB(199, 134, 57); |
| 110 private static const RGB BY_DATE_END_COLOR= new RGB(241, 225, 206); | |
| 129 | 111 |
| 112 | |
| 113 /** | |
| 114 * The annotations created to show a revision in the overview ruler. | |
| 115 */ | |
| 116 private static final class RevisionAnnotation : Annotation { | |
|
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117 public this(String text) { |
| 129 | 118 super("dwtx.ui.workbench.texteditor.revisionAnnotation", false, text); //$NON-NLS-1$ |
| 119 } | |
| 120 } | |
| 121 | |
| 122 /** | |
| 123 * The color tool manages revision colors and computes shaded colors based on the relative age | |
| 124 * and author of a revision. | |
| 125 */ | |
| 126 private final class ColorTool { | |
| 127 /** | |
| 128 * The average perceived intensity of a base color. 0 means black, 1 means white. A base | |
| 129 * revision color perceived as light such as yellow will be darkened, while colors perceived | |
| 130 * as dark such as blue will be lightened up. | |
| 131 */ | |
| 147 | 132 private static const float AVERAGE_INTENSITY= 0.5f; |
| 129 | 133 /** |
| 134 * The maximum shading in [0, 1] - this is the shade that the most recent revision will | |
| 135 * receive. | |
| 136 */ | |
| 147 | 137 private static const float MAX_SHADING= 0.7f; |
| 129 | 138 /** |
| 139 * The minimum shading in [0, 1] - this is the shade that the oldest revision will receive. | |
| 140 */ | |
| 147 | 141 private static const float MIN_SHADING= 0.2f; |
| 129 | 142 /** |
| 143 * The shade for the focus boxes. | |
| 144 */ | |
| 147 | 145 private static const float FOCUS_COLOR_SHADING= 1f; |
| 129 | 146 |
| 147 | |
| 148 /** | |
| 149 * A list of {@link Long}, storing the age of each revision in a sorted list. | |
| 150 */ | |
| 151 private List fRevisions; | |
| 152 /** | |
| 153 * The stored shaded colors. | |
| 154 */ | |
| 146 | 155 private const Map fColors= new HashMap(); |
| 129 | 156 /** |
| 157 * The stored focus colors. | |
| 158 */ | |
| 146 | 159 private const Map fFocusColors= new HashMap(); |
| 129 | 160 |
| 161 /** | |
| 162 * Sets the revision information, which is needed to compute the relative age of a revision. | |
| 163 * | |
| 164 * @param info the new revision info, <code>null</code> for none. | |
| 165 */ | |
| 166 public void setInfo(RevisionInformation info) { | |
| 167 fRevisions= null; | |
| 168 fColors.clear(); | |
| 169 fFocusColors.clear(); | |
| 170 | |
| 171 if (info is null) | |
| 172 return; | |
| 173 List revisions= new ArrayList(); | |
| 174 for (Iterator it= info.getRevisions().iterator(); it.hasNext();) { | |
| 134 | 175 Revision revision= cast(Revision) it.next(); |
| 129 | 176 revisions.add(new Long(computeAge(revision))); |
| 177 } | |
| 178 Collections.sort(revisions); | |
| 179 fRevisions= revisions; | |
| 180 } | |
| 181 | |
| 182 private RGB adaptColor(Revision revision, bool focus) { | |
| 183 RGB rgb; | |
| 184 float scale; | |
| 185 if (fRenderingMode is IRevisionRulerColumnExtension.AGE) { | |
| 186 int index= computeAgeIndex(revision); | |
| 187 if (index is -1 || fRevisions.size() is 0) { | |
| 188 rgb= getBackground().getRGB(); | |
| 189 } else { | |
| 190 // gradient from intense red for most recent to faint yellow for oldest | |
| 191 RGB[] gradient= Colors.palette(BY_DATE_START_COLOR, BY_DATE_END_COLOR, fRevisions.size()); | |
| 192 rgb= gradient[gradient.length - index - 1]; | |
| 193 } | |
| 194 scale= 0.99f; | |
| 195 } else if (fRenderingMode is IRevisionRulerColumnExtension.AUTHOR) { | |
| 196 rgb= revision.getColor(); | |
| 197 rgb= Colors.adjustBrightness(rgb, AVERAGE_INTENSITY); | |
| 198 scale= 0.6f; | |
| 199 } else if (fRenderingMode is IRevisionRulerColumnExtension.AUTHOR_SHADED_BY_AGE) { | |
| 200 rgb= revision.getColor(); | |
| 201 rgb= Colors.adjustBrightness(rgb, AVERAGE_INTENSITY); | |
| 202 int index= computeAgeIndex(revision); | |
| 203 int size= fRevisions.size(); | |
| 204 // relative age: newest is 0, oldest is 1 | |
| 205 // if there is only one revision, use an intermediate value to avoid extreme coloring | |
| 206 if (index is -1 || size < 2) | |
| 207 scale= 0.5f; | |
| 208 else | |
| 134 | 209 scale= cast(float) index / (size - 1); |
| 129 | 210 } else { |
| 211 Assert.isTrue(false); | |
| 212 return null; // dummy | |
| 213 } | |
| 214 rgb= getShadedColor(rgb, scale, focus); | |
| 215 return rgb; | |
| 216 } | |
| 217 | |
| 218 private int computeAgeIndex(Revision revision) { | |
| 219 long age= computeAge(revision); | |
| 220 int index= fRevisions.indexOf(new Long(age)); | |
| 221 return index; | |
| 222 } | |
| 223 | |
| 224 private RGB getShadedColor(RGB color, float scale, bool focus) { | |
| 225 Assert.isLegal(scale >= 0.0); | |
| 226 Assert.isLegal(scale <= 1.0); | |
| 227 RGB background= getBackground().getRGB(); | |
| 228 | |
| 229 // normalize to lie within [MIN_SHADING, MAX_SHADING] | |
| 230 // use more intense colors if the ruler is narrow (i.e. not showing line numbers) | |
| 231 bool makeIntense= getWidth() <= 15; | |
| 232 float intensityShift= makeIntense ? 0.3f : 0f; | |
| 233 float max= MAX_SHADING + intensityShift; | |
| 234 float min= MIN_SHADING + intensityShift; | |
| 235 scale= (max - min) * scale + min; | |
| 236 | |
| 237 // focus coloring | |
| 238 if (focus) { | |
| 239 scale += FOCUS_COLOR_SHADING; | |
| 240 if (scale > 1) { | |
| 241 background= new RGB(255 - background.red, 255 - background.green, 255 - background.blue); | |
| 242 scale= 2 - scale; | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 return Colors.blend(background, color, scale); | |
| 247 } | |
| 248 | |
| 249 private long computeAge(Revision revision) { | |
| 250 return revision.getDate().getTime(); | |
| 251 } | |
| 252 | |
| 253 /** | |
| 254 * Returns the color for a revision based on relative age and author. | |
| 255 * | |
| 256 * @param revision the revision | |
| 257 * @param focus <code>true</code> to return the focus color | |
| 258 * @return the color for a revision | |
| 259 */ | |
| 260 public RGB getColor(Revision revision, bool focus) { | |
| 261 Map map= focus ? fFocusColors : fColors; | |
| 134 | 262 RGB color= cast(RGB) map.get(revision); |
| 129 | 263 if (color !is null) |
| 264 return color; | |
| 265 | |
| 266 color= adaptColor(revision, focus); | |
| 267 map.put(revision, color); | |
| 268 return color; | |
| 269 } | |
| 270 } | |
| 271 | |
| 272 /** | |
| 273 * Handles all the mouse interaction in this line number ruler column. | |
| 274 */ | |
| 275 private class MouseHandler : MouseMoveListener, MouseTrackListener, Listener { | |
| 276 | |
| 277 private RevisionRange fMouseDownRegion; | |
| 278 | |
| 279 private void handleMouseUp(Event e) { | |
| 280 if (e.button is 1) { | |
| 281 RevisionRange upRegion= fFocusRange; | |
| 282 RevisionRange downRegion= fMouseDownRegion; | |
| 283 fMouseDownRegion= null; | |
| 284 | |
| 285 if (upRegion is downRegion) { | |
| 286 Revision revision= upRegion is null ? null : upRegion.getRevision(); | |
| 287 if (revision is fSelectedRevision) | |
| 288 revision= null; // deselect already selected revision | |
| 289 handleRevisionSelected(revision); | |
| 290 } | |
| 291 } | |
| 292 } | |
| 293 | |
| 294 private void handleMouseDown(Event e) { | |
| 295 if (e.button is 3) | |
| 296 updateFocusRevision(null); // kill any focus as the ctx menu is going to show | |
| 297 if (e.button is 1) { | |
| 298 fMouseDownRegion= fFocusRange; | |
| 299 postRedraw(); | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 /* | |
| 304 * @see dwt.widgets.Listener#handleEvent(dwt.widgets.Event) | |
| 305 */ | |
| 306 public void handleEvent(Event event) { | |
| 307 switch (event.type) { | |
| 308 case DWT.MouseWheel: | |
| 309 handleMouseWheel(event); | |
| 310 break; | |
| 311 case DWT.MouseDown: | |
| 312 handleMouseDown(event); | |
| 313 break; | |
| 314 case DWT.MouseUp: | |
| 315 handleMouseUp(event); | |
| 316 break; | |
| 317 default: | |
| 318 Assert.isLegal(false); | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 /* | |
| 323 * @see dwt.events.MouseTrackListener#mouseEnter(dwt.events.MouseEvent) | |
| 324 */ | |
| 325 public void mouseEnter(MouseEvent e) { | |
| 326 updateFocusLine(toDocumentLineNumber(e.y)); | |
| 327 } | |
| 328 | |
| 329 /* | |
| 330 * @see dwt.events.MouseTrackListener#mouseExit(dwt.events.MouseEvent) | |
| 331 */ | |
| 332 public void mouseExit(MouseEvent e) { | |
| 333 updateFocusLine(-1); | |
| 334 } | |
| 335 | |
| 336 /* | |
| 337 * @see dwt.events.MouseTrackListener#mouseHover(dwt.events.MouseEvent) | |
| 338 */ | |
| 339 public void mouseHover(MouseEvent e) { | |
| 340 } | |
| 341 | |
| 342 /* | |
| 343 * @see dwt.events.MouseMoveListener#mouseMove(dwt.events.MouseEvent) | |
| 344 */ | |
| 345 public void mouseMove(MouseEvent e) { | |
| 346 updateFocusLine(toDocumentLineNumber(e.y)); | |
| 347 } | |
| 348 } | |
| 349 | |
| 350 /** | |
| 351 * Internal listener class that will update the ruler when the underlying model changes. | |
| 352 */ | |
| 353 private class AnnotationListener : IAnnotationModelListener { | |
| 354 /* | |
| 355 * @see dwtx.jface.text.source.IAnnotationModelListener#modelChanged(dwtx.jface.text.source.IAnnotationModel) | |
| 356 */ | |
| 357 public void modelChanged(IAnnotationModel model) { | |
| 358 clearRangeCache(); | |
| 359 postRedraw(); | |
| 360 } | |
| 361 | |
| 362 } | |
| 363 | |
| 364 /** | |
| 365 * The information control creator. | |
| 366 */ | |
| 367 private static final class HoverInformationControlCreator : AbstractReusableInformationControlCreator { | |
| 368 private bool fIsFocusable; | |
| 369 | |
|
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changeset
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370 public this(bool isFocusable) { |
| 129 | 371 fIsFocusable= isFocusable; |
| 372 } | |
| 373 | |
| 374 /* | |
| 375 * @see dwtx.jface.internal.text.revisions.AbstractReusableInformationControlCreator#doCreateInformationControl(dwt.widgets.Shell) | |
| 376 */ | |
| 377 protected IInformationControl doCreateInformationControl(Shell parent) { | |
| 378 if (BrowserInformationControl.isAvailable(parent)) { | |
| 135 | 379 return new class(parent, JFaceResources.DIALOG_FONT, fIsFocusable) BrowserInformationControl { |
| 129 | 380 /* |
| 381 * @see dwtx.jface.internal.text.html.BrowserInformationControl#setInformation(java.lang.String) | |
| 382 * @since 3.3 | |
| 383 */ | |
| 384 public void setInformation(String content) { | |
| 385 content= addCSSToHTMLFragment(content); | |
| 386 super.setInformation(content); | |
| 387 } | |
| 388 | |
| 389 /** | |
| 390 * Adds a HTML header and CSS info if <code>html</code> is only an HTML fragment (has no | |
| 391 * <html> section). | |
| 392 * | |
| 393 * @param html the html / text produced by a revision | |
| 394 * @return modified html | |
| 395 */ | |
| 396 private String addCSSToHTMLFragment(String html) { | |
| 397 int max= Math.min(100, html.length()); | |
| 398 if (html.substring(0, max).indexOf("<html>") !is -1) //$NON-NLS-1$ | |
| 399 // there is already a header | |
| 400 return html; | |
| 401 | |
| 402 StringBuffer info= new StringBuffer(512 + html.length()); | |
| 403 HTMLPrinter.insertPageProlog(info, 0, fgStyleSheet); | |
| 404 info.append(html); | |
| 405 HTMLPrinter.addPageEpilog(info); | |
| 406 return info.toString(); | |
| 407 } | |
| 408 | |
| 409 }; | |
| 410 } | |
| 411 return new DefaultInformationControl(parent, fIsFocusable); | |
| 412 } | |
| 413 | |
| 414 /* | |
| 415 * @see dwtx.jface.text.AbstractReusableInformationControlCreator#canReplace(dwtx.jface.text.IInformationControlCreator) | |
| 416 */ | |
| 417 public bool canReplace(IInformationControlCreator creator) { | |
| 418 return creator.getClass() is getClass() | |
| 134 | 419 && (cast(HoverInformationControlCreator) creator).fIsFocusable is fIsFocusable; |
| 129 | 420 } |
| 421 } | |
| 422 | |
| 423 private static final String fgStyleSheet= "/* Font definitions */\n" + //$NON-NLS-1$ | |
| 424 "body, h1, h2, h3, h4, h5, h6, p, table, td, caption, th, ul, ol, dl, li, dd, dt {font-family: sans-serif; font-size: 9pt }\n" + //$NON-NLS-1$ | |
| 425 "pre { font-family: monospace; font-size: 9pt }\n" + //$NON-NLS-1$ | |
| 426 "\n" + //$NON-NLS-1$ | |
| 427 "/* Margins */\n" + //$NON-NLS-1$ | |
| 428 "body { overflow: auto; margin-top: 0; margin-bottom: 4; margin-left: 3; margin-right: 0 }\n" + //$NON-NLS-1$ | |
| 429 "h1 { margin-top: 5; margin-bottom: 1 } \n" + //$NON-NLS-1$ | |
| 430 "h2 { margin-top: 25; margin-bottom: 3 }\n" + //$NON-NLS-1$ | |
| 431 "h3 { margin-top: 20; margin-bottom: 3 }\n" + //$NON-NLS-1$ | |
| 432 "h4 { margin-top: 20; margin-bottom: 3 }\n" + //$NON-NLS-1$ | |
| 433 "h5 { margin-top: 0; margin-bottom: 0 }\n" + //$NON-NLS-1$ | |
| 434 "p { margin-top: 10px; margin-bottom: 10px }\n" + //$NON-NLS-1$ | |
| 435 "pre { margin-left: 6 }\n" + //$NON-NLS-1$ | |
| 436 "ul { margin-top: 0; margin-bottom: 10 }\n" + //$NON-NLS-1$ | |
| 437 "li { margin-top: 0; margin-bottom: 0 } \n" + //$NON-NLS-1$ | |
| 438 "li p { margin-top: 0; margin-bottom: 0 } \n" + //$NON-NLS-1$ | |
| 439 "ol { margin-top: 0; margin-bottom: 10 }\n" + //$NON-NLS-1$ | |
| 440 "dl { margin-top: 0; margin-bottom: 10 }\n" + //$NON-NLS-1$ | |
| 441 "dt { margin-top: 0; margin-bottom: 0; font-weight: bold }\n" + //$NON-NLS-1$ | |
| 442 "dd { margin-top: 0; margin-bottom: 0 }\n" + //$NON-NLS-1$ | |
| 443 "\n" + //$NON-NLS-1$ | |
| 444 "/* Styles and colors */\n" + //$NON-NLS-1$ | |
| 445 "a:link { color: #0000FF }\n" + //$NON-NLS-1$ | |
| 446 "a:hover { color: #000080 }\n" + //$NON-NLS-1$ | |
| 447 "a:visited { text-decoration: underline }\n" + //$NON-NLS-1$ | |
| 448 "h4 { font-style: italic }\n" + //$NON-NLS-1$ | |
| 449 "strong { font-weight: bold }\n" + //$NON-NLS-1$ | |
| 450 "em { font-style: italic }\n" + //$NON-NLS-1$ | |
| 451 "var { font-style: italic }\n" + //$NON-NLS-1$ | |
| 452 "th { font-weight: bold }\n" + //$NON-NLS-1$ | |
| 453 ""; //$NON-NLS-1$ | |
| 454 | |
| 455 /** | |
| 456 * The revision hover displays information about the currently selected revision. | |
| 457 */ | |
| 458 private final class RevisionHover : IAnnotationHover, IAnnotationHoverExtension, IAnnotationHoverExtension2, IInformationProviderExtension2 { | |
| 459 | |
| 460 /* | |
| 461 * @see dwtx.jface.text.source.IAnnotationHover#getHoverInfo(dwtx.jface.text.source.ISourceViewer, | |
| 462 * int) | |
| 463 */ | |
| 464 public String getHoverInfo(ISourceViewer sourceViewer, int lineNumber) { | |
| 465 Object info= getHoverInfo(sourceViewer, getHoverLineRange(sourceViewer, lineNumber), 0); | |
| 466 return info is null ? null : info.toString(); | |
| 467 } | |
| 468 | |
| 469 /* | |
| 470 * @see dwtx.jface.text.source.IAnnotationHoverExtension#getHoverControlCreator() | |
| 471 */ | |
| 472 public IInformationControlCreator getHoverControlCreator() { | |
| 473 RevisionInformation revisionInfo= fRevisionInfo; | |
| 474 if (revisionInfo !is null) { | |
| 475 IInformationControlCreator creator= revisionInfo.getHoverControlCreator(); | |
| 476 if (creator !is null) | |
| 477 return creator; | |
| 478 } | |
| 479 return new HoverInformationControlCreator(false); | |
| 480 } | |
| 481 | |
| 482 /* | |
| 483 * @see dwtx.jface.text.source.IAnnotationHoverExtension#canHandleMouseCursor() | |
| 484 */ | |
| 485 public bool canHandleMouseCursor() { | |
| 486 return false; | |
| 487 } | |
| 488 | |
| 489 /* | |
| 490 * @see dwtx.jface.text.source.IAnnotationHoverExtension2#canHandleMouseWheel() | |
| 491 */ | |
| 492 public bool canHandleMouseWheel() { | |
| 493 return true; | |
| 494 } | |
| 495 | |
| 496 /* | |
| 497 * @see dwtx.jface.text.source.IAnnotationHoverExtension#getHoverInfo(dwtx.jface.text.source.ISourceViewer, | |
| 498 * dwtx.jface.text.source.ILineRange, int) | |
| 499 */ | |
| 500 public Object getHoverInfo(ISourceViewer sourceViewer, ILineRange lineRange, int visibleNumberOfLines) { | |
| 501 RevisionRange range= getRange(lineRange.getStartLine()); | |
| 502 Object info= range is null ? null : range.getRevision().getHoverInfo(); | |
| 503 return info; | |
| 504 } | |
| 505 | |
| 506 /* | |
| 507 * @see dwtx.jface.text.source.IAnnotationHoverExtension#getHoverLineRange(dwtx.jface.text.source.ISourceViewer, | |
| 508 * int) | |
| 509 */ | |
| 510 public ILineRange getHoverLineRange(ISourceViewer viewer, int lineNumber) { | |
| 511 RevisionRange range= getRange(lineNumber); | |
| 512 return range is null ? null : new LineRange(lineNumber, 1); | |
| 513 } | |
| 514 | |
| 515 /* | |
| 516 * @see dwtx.jface.text.information.IInformationProviderExtension2#getInformationPresenterControlCreator() | |
| 517 */ | |
| 518 public IInformationControlCreator getInformationPresenterControlCreator() { | |
| 519 RevisionInformation revisionInfo= fRevisionInfo; | |
| 520 if (revisionInfo !is null) { | |
| 521 IInformationControlCreator creator= revisionInfo.getInformationPresenterControlCreator(); | |
| 522 if (creator !is null) | |
| 523 return creator; | |
| 524 } | |
| 525 return new HoverInformationControlCreator(true); | |
| 526 } | |
| 527 } | |
| 528 | |
| 529 /* Listeners and helpers. */ | |
| 530 | |
| 531 /** The shared color provider. */ | |
| 146 | 532 private const ISharedTextColors fSharedColors; |
| 129 | 533 /** The color tool. */ |
| 146 | 534 private const ColorTool fColorTool= new ColorTool(); |
| 129 | 535 /** The mouse handler. */ |
| 146 | 536 private const MouseHandler fMouseHandler= new MouseHandler(); |
| 129 | 537 /** The hover. */ |
| 146 | 538 private const RevisionHover fHover= new RevisionHover(); |
| 129 | 539 /** The annotation listener. */ |
| 146 | 540 private const AnnotationListener fAnnotationListener= new AnnotationListener(); |
| 129 | 541 /** The selection provider. */ |
| 146 | 542 private const RevisionSelectionProvider fRevisionSelectionProvider= new RevisionSelectionProvider(this); |
| 129 | 543 /** |
| 544 * The list of revision listeners. | |
| 545 * @since 3.3. | |
| 546 */ | |
| 146 | 547 private const ListenerList fRevisionListeners= new ListenerList(ListenerList.IDENTITY); |
| 129 | 548 |
| 549 /* The context - column and viewer we are connected to. */ | |
| 550 | |
| 551 /** The vertical ruler column that delegates painting to this painter. */ | |
| 146 | 552 private const IVerticalRulerColumn fColumn; |
| 129 | 553 /** The parent ruler. */ |
| 554 private CompositeRuler fParentRuler; | |
| 555 /** The column's control, typically a {@link Canvas}, possibly <code>null</code>. */ | |
| 556 private Control fControl; | |
| 557 /** The text viewer that the column is attached to. */ | |
| 558 private ITextViewer fViewer; | |
| 559 /** The viewer's text widget. */ | |
| 560 private StyledText fWidget; | |
| 561 | |
| 562 /* The models we operate on. */ | |
| 563 | |
| 564 /** The revision model object. */ | |
| 565 private RevisionInformation fRevisionInfo; | |
| 566 /** The line differ. */ | |
| 567 private ILineDiffer fLineDiffer= null; | |
| 568 /** The annotation model. */ | |
| 569 private IAnnotationModel fAnnotationModel= null; | |
| 570 /** The background color, possibly <code>null</code>. */ | |
| 571 private Color fBackground; | |
| 572 | |
| 573 /* Cache. */ | |
| 574 | |
| 575 /** The cached list of ranges adapted to quick diff. */ | |
| 576 private List fRevisionRanges= null; | |
| 577 /** The annotations created for the overview ruler temporary display. */ | |
| 578 private List fAnnotations= new ArrayList(); | |
| 579 | |
| 580 /* State */ | |
| 581 | |
| 582 /** The current focus line, -1 for none. */ | |
| 583 private int fFocusLine= -1; | |
| 584 /** The current focus region, <code>null</code> if none. */ | |
| 585 private RevisionRange fFocusRange= null; | |
| 586 /** The current focus revision, <code>null</code> if none. */ | |
| 587 private Revision fFocusRevision= null; | |
| 588 /** | |
| 589 * The currently selected revision, <code>null</code> if none. The difference between | |
| 590 * {@link #fFocusRevision} and {@link #fSelectedRevision} may not be obvious: the focus revision | |
| 591 * is the one focused by the mouse (by hovering over a block of the revision), while the | |
| 592 * selected revision is sticky, i.e. is not removed when the mouse leaves the ruler. | |
| 593 * | |
| 594 * @since 3.3 | |
| 595 */ | |
| 596 private Revision fSelectedRevision= null; | |
| 597 /** <code>true</code> if the mouse wheel handler is installed, <code>false</code> otherwise. */ | |
| 598 private bool fWheelHandlerInstalled= false; | |
| 599 /** | |
| 600 * The revision rendering mode. | |
| 601 */ | |
| 602 private RenderingMode fRenderingMode= IRevisionRulerColumnExtension.AUTHOR_SHADED_BY_AGE; | |
| 603 /** | |
| 604 * The required with in characters. | |
| 605 * @since 3.3 | |
| 606 */ | |
| 607 private int fRequiredWidth= -1; | |
| 608 /** | |
| 609 * The width of the revision field in chars to compute {@link #fAuthorInset} from. | |
| 610 * @since 3.3 | |
| 611 */ | |
| 612 private int fRevisionIdChars= 0; | |
| 613 /** | |
| 614 * <code>true</code> to show revision ids, <code>false</code> otherwise. | |
| 615 * @since 3.3 | |
| 616 */ | |
| 617 private bool fShowRevision= false; | |
| 618 /** | |
| 619 * <code>true</code> to show the author, <code>false</code> otherwise. | |
| 620 * @since 3.3 | |
| 621 */ | |
| 622 private bool fShowAuthor= false; | |
| 623 /** | |
| 624 * The author inset in pixels for when author *and* revision id are shown. | |
| 625 * @since 3.3 | |
| 626 */ | |
| 627 private int fAuthorInset; | |
| 628 /** | |
| 629 * The remembered ruler width (as changing the ruler width triggers recomputation of the colors. | |
| 630 * @since 3.3 | |
| 631 */ | |
| 632 private int fLastWidth= -1; | |
| 633 | |
| 634 /** | |
| 635 * Creates a new revision painter for a vertical ruler column. | |
| 636 * | |
| 637 * @param column the column that will delegate{@link #paint(GC, ILineRange) painting} to the | |
| 638 * newly created painter. | |
| 639 * @param sharedColors a shared colors object to store shaded colors in | |
| 640 */ | |
|
133
7d818bd32d63
Fix ctors to this with gvim regexp
Frank Benoit <benoit@tionex.de>
parents:
131
diff
changeset
|
641 public this(IVerticalRulerColumn column, ISharedTextColors sharedColors) { |
| 129 | 642 Assert.isLegal(column !is null); |
| 643 Assert.isLegal(sharedColors !is null); | |
| 644 fColumn= column; | |
| 645 fSharedColors= sharedColors; | |
| 646 } | |
| 647 | |
| 648 /** | |
| 649 * Sets the revision information to be drawn and triggers a redraw. | |
| 650 * | |
| 651 * @param info the revision information to show, <code>null</code> to draw none | |
| 652 */ | |
| 653 public void setRevisionInformation(RevisionInformation info) { | |
| 654 if (fRevisionInfo !is info) { | |
| 655 fRequiredWidth= -1; | |
| 656 fRevisionIdChars= 0; | |
| 657 fRevisionInfo= info; | |
| 658 clearRangeCache(); | |
| 659 updateFocusRange(null); | |
| 134 | 660 handleRevisionSelected(cast(Revision) null); |
| 129 | 661 fColorTool.setInfo(info); |
| 662 postRedraw(); | |
| 663 informListeners(); | |
| 664 } | |
| 665 } | |
| 666 | |
| 667 /** | |
| 668 * Changes the rendering mode and triggers redrawing if needed. | |
| 669 * | |
| 670 * @param renderingMode the rendering mode | |
| 671 * @since 3.3 | |
| 672 */ | |
| 673 public void setRenderingMode(RenderingMode renderingMode) { | |
| 674 Assert.isLegal(renderingMode !is null); | |
| 675 if (fRenderingMode !is renderingMode) { | |
| 676 fRenderingMode= renderingMode; | |
| 677 fColorTool.setInfo(fRevisionInfo); | |
| 678 postRedraw(); | |
| 679 } | |
| 680 } | |
| 681 | |
| 682 /** | |
| 683 * Sets the background color. | |
| 684 * | |
| 685 * @param background the background color, <code>null</code> for the platform's list | |
| 686 * background | |
| 687 */ | |
| 688 public void setBackground(Color background) { | |
| 689 fBackground= background; | |
| 690 } | |
| 691 | |
| 692 /** | |
| 693 * Sets the parent ruler - the delegating column must call this method as soon as it creates its | |
| 694 * control. | |
| 695 * | |
| 696 * @param parentRuler the parent ruler | |
| 697 */ | |
| 698 public void setParentRuler(CompositeRuler parentRuler) { | |
| 699 fParentRuler= parentRuler; | |
| 700 } | |
| 701 | |
| 702 /** | |
| 703 * Delegates the painting of the quick diff colors to this painter. The painter will draw the | |
| 704 * color boxes onto the passed {@link GC} for all model (document) lines in | |
| 705 * <code>visibleModelLines</code>. | |
| 706 * | |
| 707 * @param gc the {@link GC} to draw onto | |
| 708 * @param visibleLines the lines (in document offsets) that are currently (perhaps only | |
| 709 * partially) visible | |
| 710 */ | |
| 711 public void paint(GC gc, ILineRange visibleLines) { | |
| 712 connectIfNeeded(); | |
| 713 if (!isConnected()) | |
| 714 return; | |
| 715 | |
| 716 // compute the horizontal indent of the author for the case that we show revision | |
| 717 // and author | |
| 718 if (fShowAuthor && fShowRevision) { | |
| 719 char[] string= new char[fRevisionIdChars + 1]; | |
| 720 Arrays.fill(string, '9'); | |
| 721 if (string.length > 1) { | |
| 722 string[0]= '.'; | |
| 723 string[1]= ' '; | |
| 724 } | |
| 725 fAuthorInset= gc.stringExtent(new String(string)).x; | |
| 726 } | |
| 727 | |
| 728 // recompute colors (show intense colors if ruler is narrow) | |
| 729 int width= getWidth(); | |
| 730 if (width !is fLastWidth) { | |
| 731 fColorTool.setInfo(fRevisionInfo); | |
| 732 fLastWidth= width; | |
| 733 } | |
| 734 | |
| 735 // draw change regions | |
| 736 List/* <RevisionRange> */ranges= getRanges(visibleLines); | |
| 737 for (Iterator it= ranges.iterator(); it.hasNext();) { | |
| 134 | 738 RevisionRange region= cast(RevisionRange) it.next(); |
| 129 | 739 paintRange(region, gc); |
| 740 } | |
| 741 } | |
| 742 | |
| 743 /** | |
| 744 * Ensures that the column is fully instantiated, i.e. has a control, and that the viewer is | |
| 745 * visible. | |
| 746 */ | |
| 747 private void connectIfNeeded() { | |
| 748 if (isConnected() || fParentRuler is null) | |
| 749 return; | |
| 750 | |
| 751 fViewer= fParentRuler.getTextViewer(); | |
| 752 if (fViewer is null) | |
| 753 return; | |
| 754 | |
| 755 fWidget= fViewer.getTextWidget(); | |
| 756 if (fWidget is null) | |
| 757 return; | |
| 758 | |
| 759 fControl= fColumn.getControl(); | |
| 760 if (fControl is null) | |
| 761 return; | |
| 762 | |
| 763 fControl.addMouseTrackListener(fMouseHandler); | |
| 764 fControl.addMouseMoveListener(fMouseHandler); | |
| 765 fControl.addListener(DWT.MouseUp, fMouseHandler); | |
| 766 fControl.addListener(DWT.MouseDown, fMouseHandler); | |
| 135 | 767 fControl.addDisposeListener(new class() DisposeListener { |
| 129 | 768 /* |
| 769 * @see dwt.events.DisposeListener#widgetDisposed(dwt.events.DisposeEvent) | |
| 770 */ | |
| 771 public void widgetDisposed(DisposeEvent e) { | |
| 772 handleDispose(); | |
| 773 } | |
| 774 }); | |
| 775 | |
| 776 fRevisionSelectionProvider.install(fViewer); | |
| 777 } | |
| 778 | |
| 779 /** | |
| 780 * Returns <code>true</code> if the column is fully connected. | |
| 781 * | |
| 782 * @return <code>true</code> if the column is fully connected, false otherwise | |
| 783 */ | |
| 784 private bool isConnected() { | |
| 785 return fControl !is null; | |
| 786 } | |
| 787 | |
| 788 /** | |
| 789 * Sets the annotation model. | |
| 790 * | |
| 791 * @param model the annotation model, possibly <code>null</code> | |
| 792 * @see IVerticalRulerColumn#setModel(IAnnotationModel) | |
| 793 */ | |
| 794 public void setModel(IAnnotationModel model) { | |
| 795 IAnnotationModel diffModel; | |
| 138 | 796 if ( cast(IAnnotationModelExtension)model ) |
| 134 | 797 diffModel= (cast(IAnnotationModelExtension) model).getAnnotationModel(IChangeRulerColumn.QUICK_DIFF_MODEL_ID); |
| 129 | 798 else |
| 799 diffModel= model; | |
| 800 | |
| 801 setDiffer(diffModel); | |
| 802 setAnnotationModel(model); | |
| 803 } | |
| 804 | |
| 805 /** | |
| 806 * Sets the annotation model. | |
| 807 * | |
| 808 * @param model the annotation model. | |
| 809 */ | |
| 810 private void setAnnotationModel(IAnnotationModel model) { | |
| 811 if (fAnnotationModel !is model) | |
| 812 fAnnotationModel= model; | |
| 813 } | |
| 814 | |
| 815 /** | |
| 816 * Sets the line differ. | |
| 817 * | |
| 818 * @param differ the line differ or <code>null</code> if none | |
| 819 */ | |
| 820 private void setDiffer(IAnnotationModel differ) { | |
| 142 | 821 if ( cast(ILineDiffer)differ || differ is null) { |
| 129 | 822 if (fLineDiffer !is differ) { |
| 823 if (fLineDiffer !is null) | |
| 134 | 824 (cast(IAnnotationModel) fLineDiffer).removeAnnotationModelListener(fAnnotationListener); |
| 825 fLineDiffer= cast(ILineDiffer) differ; | |
| 129 | 826 if (fLineDiffer !is null) |
| 134 | 827 (cast(IAnnotationModel) fLineDiffer).addAnnotationModelListener(fAnnotationListener); |
| 129 | 828 } |
| 829 } | |
| 830 } | |
| 831 | |
| 832 /** | |
| 833 * Disposes of the painter's resources. | |
| 834 */ | |
| 835 private void handleDispose() { | |
| 836 updateFocusLine(-1); | |
| 837 | |
| 838 if (fLineDiffer !is null) { | |
| 134 | 839 (cast(IAnnotationModel) fLineDiffer).removeAnnotationModelListener(fAnnotationListener); |
| 129 | 840 fLineDiffer= null; |
| 841 } | |
| 842 | |
| 843 fRevisionSelectionProvider.uninstall(); | |
| 844 } | |
| 845 | |
| 846 /** | |
| 847 * Paints a single change region onto <code>gc</code>. | |
| 848 * | |
| 849 * @param range the range to paint | |
| 850 * @param gc the {@link GC} to paint on | |
| 851 */ | |
| 852 private void paintRange(RevisionRange range, GC gc) { | |
| 853 ILineRange widgetRange= modelLinesToWidgetLines(range); | |
| 854 if (widgetRange is null) | |
| 855 return; | |
| 856 | |
| 857 Revision revision= range.getRevision(); | |
| 858 bool drawArmedFocus= range is fMouseHandler.fMouseDownRegion; | |
| 859 bool drawSelection= !drawArmedFocus && revision is fSelectedRevision; | |
| 860 bool drawFocus= !drawSelection && !drawArmedFocus && revision is fFocusRevision; | |
| 861 Rectangle box= computeBoxBounds(widgetRange); | |
| 862 | |
| 863 gc.setBackground(lookupColor(revision, false)); | |
| 864 if (drawArmedFocus) { | |
| 865 Color foreground= gc.getForeground(); | |
| 866 Color focusColor= lookupColor(revision, true); | |
| 867 gc.setForeground(focusColor); | |
| 868 gc.fillRectangle(box); | |
| 869 gc.drawRectangle(box.x, box.y, box.width - 1, box.height - 1); // highlight box | |
| 870 gc.drawRectangle(box.x + 1, box.y + 1, box.width - 3, box.height - 3); // inner highlight box | |
| 871 gc.setForeground(foreground); | |
| 872 } else if (drawFocus || drawSelection) { | |
| 873 Color foreground= gc.getForeground(); | |
| 874 Color focusColor= lookupColor(revision, true); | |
| 875 gc.setForeground(focusColor); | |
| 876 gc.fillRectangle(box); | |
| 877 gc.drawRectangle(box.x, box.y, box.width - 1, box.height - 1); // highlight box | |
| 878 gc.setForeground(foreground); | |
| 879 } else { | |
| 880 gc.fillRectangle(box); | |
| 881 } | |
| 882 | |
| 883 if ((fShowAuthor || fShowRevision)) { | |
| 884 int indentation= 1; | |
| 885 int baselineBias= getBaselineBias(gc, widgetRange.getStartLine()); | |
| 886 if (fShowAuthor && fShowRevision) { | |
| 887 gc.drawString(revision.getId(), indentation, box.y + baselineBias, true); | |
| 888 gc.drawString(revision.getAuthor(), fAuthorInset, box.y + baselineBias, true); | |
| 889 } else if (fShowAuthor) { | |
| 890 gc.drawString(revision.getAuthor(), indentation, box.y + baselineBias, true); | |
| 891 } else if (fShowRevision) { | |
| 892 gc.drawString(revision.getId(), indentation, box.y + baselineBias, true); | |
| 893 } | |
| 894 } | |
| 895 } | |
| 896 | |
| 897 /** | |
| 898 * Returns the difference between the baseline of the widget and the | |
| 899 * baseline as specified by the font for <code>gc</code>. When drawing | |
| 900 * line numbers, the returned bias should be added to obtain text lined up | |
| 901 * on the correct base line of the text widget. | |
| 902 * | |
| 903 * @param gc the <code>GC</code> to get the font metrics from | |
| 904 * @param widgetLine the widget line | |
| 905 * @return the baseline bias to use when drawing text that is lined up with | |
| 906 * <code>fCachedTextWidget</code> | |
| 907 * @since 3.3 | |
| 908 */ | |
| 909 private int getBaselineBias(GC gc, int widgetLine) { | |
| 910 /* | |
| 911 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=62951 | |
| 912 * widget line height may be more than the font height used for the | |
| 913 * line numbers, since font styles (bold, italics...) can have larger | |
| 914 * font metrics than the simple font used for the numbers. | |
| 915 */ | |
| 916 int offset= fWidget.getOffsetAtLine(widgetLine); | |
| 917 int widgetBaseline= fWidget.getBaseline(offset); | |
| 918 | |
| 919 FontMetrics fm = gc.getFontMetrics(); | |
| 920 int fontBaseline = fm.getAscent() + fm.getLeading(); | |
| 921 int baselineBias= widgetBaseline - fontBaseline; | |
| 922 return Math.max(0, baselineBias); | |
| 923 } | |
| 924 | |
| 925 /** | |
| 926 * Looks up the color for a certain revision. | |
| 927 * | |
| 928 * @param revision the revision to get the color for | |
| 929 * @param focus <code>true</code> if it is the focus revision | |
| 930 * @return the color for the revision | |
| 931 */ | |
| 932 private Color lookupColor(Revision revision, bool focus) { | |
| 933 return fSharedColors.getColor(fColorTool.getColor(revision, focus)); | |
| 934 } | |
| 935 | |
| 936 /** | |
| 937 * Returns the revision range that contains the given line, or | |
| 938 * <code>null</code> if there is none. | |
| 939 * | |
| 940 * @param line the line of interest | |
| 941 * @return the corresponding <code>RevisionRange</code> or <code>null</code> | |
| 942 */ | |
| 943 private RevisionRange getRange(int line) { | |
| 944 List ranges= getRangeCache(); | |
| 945 | |
| 946 if (ranges.isEmpty() || line is -1) | |
| 947 return null; | |
| 948 | |
| 949 for (Iterator it= ranges.iterator(); it.hasNext();) { | |
| 134 | 950 RevisionRange range= cast(RevisionRange) it.next(); |
| 129 | 951 if (contains(range, line)) |
| 952 return range; | |
| 953 } | |
| 954 | |
| 955 // line may be right after the last region | |
| 134 | 956 RevisionRange lastRegion= cast(RevisionRange) ranges.get(ranges.size() - 1); |
| 129 | 957 if (line is end(lastRegion)) |
| 958 return lastRegion; | |
| 959 return null; | |
| 960 } | |
| 961 | |
| 962 /** | |
| 963 * Returns the sublist of all <code>RevisionRange</code>s that intersect with the given lines. | |
| 964 * | |
| 965 * @param lines the model based lines of interest | |
| 966 * @return elementType: RevisionRange | |
| 967 */ | |
| 968 private List getRanges(ILineRange lines) { | |
| 969 List ranges= getRangeCache(); | |
| 970 | |
| 971 // return the interesting subset | |
| 972 int end= end(lines); | |
| 973 int first= -1, last= -1; | |
| 974 for (int i= 0; i < ranges.size(); i++) { | |
| 134 | 975 RevisionRange range= cast(RevisionRange) ranges.get(i); |
| 129 | 976 int rangeEnd= end(range); |
| 977 if (first is -1 && rangeEnd > lines.getStartLine()) | |
| 978 first= i; | |
| 979 if (first !is -1 && rangeEnd > end) { | |
| 980 last= i; | |
| 981 break; | |
| 982 } | |
| 983 } | |
| 984 if (first is -1) | |
| 985 return Collections.EMPTY_LIST; | |
| 986 if (last is -1) | |
| 987 last= ranges.size() - 1; // bottom index may be one too much | |
| 988 | |
| 989 return ranges.subList(first, last + 1); | |
| 990 } | |
| 991 | |
| 992 /** | |
| 993 * Gets all change ranges of the revisions in the revision model and adapts them to the current | |
| 994 * quick diff information. The list is cached. | |
| 995 * | |
| 996 * @return the list of all change regions, with diff information applied | |
| 997 */ | |
| 998 private List getRangeCache() { | |
| 999 if (fRevisionRanges is null) { | |
| 1000 if (fRevisionInfo is null) { | |
| 1001 fRevisionRanges= Collections.EMPTY_LIST; | |
| 1002 } else { | |
| 1003 Hunk[] hunks= HunkComputer.computeHunks(fLineDiffer, fViewer.getDocument().getNumberOfLines()); | |
| 1004 fRevisionInfo.applyDiff(hunks); | |
| 1005 fRevisionRanges= fRevisionInfo.getRanges(); | |
| 1006 updateOverviewAnnotations(); | |
| 1007 informListeners(); | |
| 1008 } | |
| 1009 } | |
| 1010 | |
| 1011 return fRevisionRanges; | |
| 1012 } | |
| 1013 | |
| 1014 /** | |
| 1015 * Clears the range cache. | |
| 1016 * | |
| 1017 * @since 3.3 | |
| 1018 */ | |
| 1019 private void clearRangeCache() { | |
| 1020 fRevisionRanges= null; | |
| 1021 } | |
| 1022 | |
| 1023 /** | |
| 1024 * Returns <code>true</code> if <code>range</code> contains <code>line</code>. A line is | |
| 1025 * not contained in a range if it is the range's exclusive end line. | |
| 1026 * | |
| 1027 * @param range the range to check whether it contains <code>line</code> | |
| 1028 * @param line the line the line | |
| 1029 * @return <code>true</code> if <code>range</code> contains <code>line</code>, | |
| 1030 * <code>false</code> if not | |
| 1031 */ | |
| 1032 private static bool contains(ILineRange range, int line) { | |
| 1033 return range.getStartLine() <= line && end(range) > line; | |
| 1034 } | |
| 1035 | |
| 1036 /** | |
| 1037 * Computes the end index of a line range. | |
| 1038 * | |
| 1039 * @param range a line range | |
| 1040 * @return the last line (exclusive) of <code>range</code> | |
| 1041 */ | |
| 1042 private static int end(ILineRange range) { | |
| 1043 return range.getStartLine() + range.getNumberOfLines(); | |
| 1044 } | |
| 1045 | |
| 1046 /** | |
| 1047 * Returns the visible extent of a document line range in widget lines. | |
| 1048 * | |
| 1049 * @param range the document line range | |
| 1050 * @return the visible extent of <code>range</code> in widget lines | |
| 1051 */ | |
| 1052 private ILineRange modelLinesToWidgetLines(ILineRange range) { | |
| 1053 int widgetStartLine= -1; | |
| 1054 int widgetEndLine= -1; | |
| 138 | 1055 if ( cast(ITextViewerExtension5)fViewer ) { |
| 134 | 1056 ITextViewerExtension5 extension= cast(ITextViewerExtension5) fViewer; |
| 129 | 1057 int modelEndLine= end(range); |
| 1058 for (int modelLine= range.getStartLine(); modelLine < modelEndLine; modelLine++) { | |
| 1059 int widgetLine= extension.modelLine2WidgetLine(modelLine); | |
| 1060 if (widgetLine !is -1) { | |
| 1061 if (widgetStartLine is -1) | |
| 1062 widgetStartLine= widgetLine; | |
| 1063 widgetEndLine= widgetLine; | |
| 1064 } | |
| 1065 } | |
| 1066 } else { | |
| 1067 IRegion region= fViewer.getVisibleRegion(); | |
| 1068 IDocument document= fViewer.getDocument(); | |
| 1069 try { | |
| 1070 int visibleStartLine= document.getLineOfOffset(region.getOffset()); | |
| 1071 int visibleEndLine= document.getLineOfOffset(region.getOffset() + region.getLength()); | |
| 1072 widgetStartLine= Math.max(0, range.getStartLine() - visibleStartLine); | |
| 1073 widgetEndLine= Math.min(visibleEndLine, end(range) - 1); | |
| 1074 } catch (BadLocationException x) { | |
| 1075 x.printStackTrace(); | |
| 1076 // ignore and return null | |
| 1077 } | |
| 1078 } | |
| 1079 if (widgetStartLine is -1 || widgetEndLine is -1) | |
| 1080 return null; | |
| 1081 return new LineRange(widgetStartLine, widgetEndLine - widgetStartLine + 1); | |
| 1082 } | |
| 1083 | |
| 1084 /** | |
| 1085 * Returns the revision hover. | |
| 1086 * | |
| 1087 * @return the revision hover | |
| 1088 */ | |
| 1089 public IAnnotationHover getHover() { | |
| 1090 return fHover; | |
| 1091 } | |
| 1092 | |
| 1093 /** | |
| 1094 * Computes and returns the bounds of the rectangle corresponding to a widget line range. The | |
| 1095 * rectangle is in pixel coordinates relative to the text widget's | |
| 1096 * {@link StyledText#getClientArea() client area} and has the width of the ruler. | |
| 1097 * | |
| 1098 * @param range the widget line range | |
| 1099 * @return the box bounds corresponding to <code>range</code> | |
| 1100 */ | |
| 1101 private Rectangle computeBoxBounds(ILineRange range) { | |
| 1102 int y1= fWidget.getLinePixel(range.getStartLine()); | |
| 1103 int y2= fWidget.getLinePixel(range.getStartLine() + range.getNumberOfLines()); | |
| 1104 | |
| 1105 return new Rectangle(0, y1, getWidth(), y2 - y1 - 1); | |
| 1106 } | |
| 1107 | |
| 1108 /** | |
| 1109 * Shows (or hides) the overview annotations. | |
| 1110 */ | |
| 1111 private void updateOverviewAnnotations() { | |
| 1112 if (fAnnotationModel is null) | |
| 1113 return; | |
| 1114 | |
| 1115 Revision revision= fFocusRevision !is null ? fFocusRevision : fSelectedRevision; | |
| 1116 | |
| 1117 Map added= null; | |
| 1118 if (revision !is null) { | |
| 1119 added= new HashMap(); | |
| 1120 for (Iterator it= revision.getRegions().iterator(); it.hasNext();) { | |
| 134 | 1121 RevisionRange range= cast(RevisionRange) it.next(); |
| 129 | 1122 try { |
| 1123 IRegion charRegion= toCharRegion(range); | |
| 1124 Position position= new Position(charRegion.getOffset(), charRegion.getLength()); | |
| 1125 Annotation annotation= new RevisionAnnotation(revision.getId()); | |
| 1126 added.put(annotation, position); | |
| 1127 } catch (BadLocationException x) { | |
| 1128 // ignore - document was changed, show no annotations | |
| 1129 } | |
| 1130 } | |
| 1131 } | |
| 1132 | |
| 138 | 1133 if ( cast(IAnnotationModelExtension)fAnnotationModel ) { |
| 134 | 1134 IAnnotationModelExtension ext= cast(IAnnotationModelExtension) fAnnotationModel; |
| 129 | 1135 ext.replaceAnnotations((Annotation[]) fAnnotations.toArray(new Annotation[fAnnotations.size()]), added); |
| 1136 } else { | |
| 1137 for (Iterator it= fAnnotations.iterator(); it.hasNext();) { | |
| 134 | 1138 Annotation annotation= cast(Annotation) it.next(); |
| 129 | 1139 fAnnotationModel.removeAnnotation(annotation); |
| 1140 } | |
| 1141 if (added !is null) { | |
| 1142 for (Iterator it= added.entrySet().iterator(); it.hasNext();) { | |
| 134 | 1143 Entry entry= cast(Entry) it.next(); |
| 1144 fAnnotationModel.addAnnotation(cast(Annotation) entry.getKey(), cast(Position) entry.getValue()); | |
| 129 | 1145 } |
| 1146 } | |
| 1147 } | |
| 1148 fAnnotations.clear(); | |
| 1149 if (added !is null) | |
| 1150 fAnnotations.addAll(added.keySet()); | |
| 1151 | |
| 1152 } | |
| 1153 | |
| 1154 /** | |
| 1155 * Returns the character offset based region of a line range. | |
| 1156 * | |
| 1157 * @param lines the line range to convert | |
| 1158 * @return the character offset range corresponding to <code>range</code> | |
| 1159 * @throws BadLocationException if the line range is not within the document bounds | |
| 1160 */ | |
|
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1161 private IRegion toCharRegion(ILineRange lines) { |
| 129 | 1162 IDocument document= fViewer.getDocument(); |
| 1163 int offset= document.getLineOffset(lines.getStartLine()); | |
| 1164 int nextLine= end(lines); | |
| 1165 int endOffset; | |
| 1166 if (nextLine >= document.getNumberOfLines()) | |
| 1167 endOffset= document.getLength(); | |
| 1168 else | |
| 1169 endOffset= document.getLineOffset(nextLine); | |
| 1170 return new Region(offset, endOffset - offset); | |
| 1171 } | |
| 1172 | |
| 1173 /** | |
| 1174 * Handles the selection of a revision and informs listeners. | |
| 1175 * | |
| 1176 * @param revision the selected revision, <code>null</code> for none | |
| 1177 */ | |
| 1178 void handleRevisionSelected(Revision revision) { | |
| 1179 fSelectedRevision= revision; | |
| 1180 fRevisionSelectionProvider.revisionSelected(revision); | |
| 1181 updateOverviewAnnotations(); | |
| 1182 postRedraw(); | |
| 1183 } | |
| 1184 | |
| 1185 /** | |
| 1186 * Handles the selection of a revision id and informs listeners | |
| 1187 * | |
| 1188 * @param id the selected revision id | |
| 1189 */ | |
| 1190 void handleRevisionSelected(String id) { | |
| 1191 Assert.isLegal(id !is null); | |
| 1192 if (fRevisionInfo is null) | |
| 1193 return; | |
| 1194 | |
| 1195 for (Iterator it= fRevisionInfo.getRevisions().iterator(); it.hasNext();) { | |
| 134 | 1196 Revision revision= cast(Revision) it.next(); |
| 129 | 1197 if (id.equals(revision.getId())) { |
| 1198 handleRevisionSelected(revision); | |
| 1199 return; | |
| 1200 } | |
| 1201 } | |
| 1202 | |
| 1203 // clear selection if it does not exist | |
| 134 | 1204 handleRevisionSelected(cast(Revision) null); |
| 129 | 1205 } |
| 1206 | |
| 1207 /** | |
| 1208 * Returns the selection provider. | |
| 1209 * | |
| 1210 * @return the selection provider | |
| 1211 */ | |
| 1212 public RevisionSelectionProvider getRevisionSelectionProvider() { | |
| 1213 return fRevisionSelectionProvider; | |
| 1214 } | |
| 1215 | |
| 1216 /** | |
| 1217 * Updates the focus line with a new line. | |
| 1218 * | |
| 1219 * @param line the new focus line, -1 for no focus | |
| 1220 */ | |
| 1221 private void updateFocusLine(int line) { | |
| 1222 if (fFocusLine !is line) | |
| 1223 onFocusLineChanged(fFocusLine, line); | |
| 1224 } | |
| 1225 | |
| 1226 /** | |
| 1227 * Handles a changing focus line. | |
| 1228 * | |
| 1229 * @param previousLine the old focus line (-1 for no focus) | |
| 1230 * @param nextLine the new focus line (-1 for no focus) | |
| 1231 */ | |
| 1232 private void onFocusLineChanged(int previousLine, int nextLine) { | |
| 134 | 1233 if cast(DEBUG) |
|
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1234 System.out_.println("line: " + previousLine + " > " + nextLine); //$NON-NLS-1$ //$NON-NLS-2$ |
| 129 | 1235 fFocusLine= nextLine; |
| 1236 RevisionRange region= getRange(nextLine); | |
| 1237 updateFocusRange(region); | |
| 1238 } | |
| 1239 | |
| 1240 /** | |
| 1241 * Updates the focus range. | |
| 1242 * | |
| 1243 * @param range the new focus range, <code>null</code> for no focus | |
| 1244 */ | |
| 1245 private void updateFocusRange(RevisionRange range) { | |
| 1246 if (range !is fFocusRange) | |
| 1247 onFocusRangeChanged(fFocusRange, range); | |
| 1248 } | |
| 1249 | |
| 1250 /** | |
| 1251 * Handles a changing focus range. | |
| 1252 * | |
| 1253 * @param previousRange the old focus range (<code>null</code> for no focus) | |
| 1254 * @param nextRange the new focus range (<code>null</code> for no focus) | |
| 1255 */ | |
| 1256 private void onFocusRangeChanged(RevisionRange previousRange, RevisionRange nextRange) { | |
| 134 | 1257 if cast(DEBUG) |
|
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1258 System.out_.println("range: " + previousRange + " > " + nextRange); //$NON-NLS-1$ //$NON-NLS-2$ |
| 129 | 1259 fFocusRange= nextRange; |
| 1260 Revision revision= nextRange is null ? null : nextRange.getRevision(); | |
| 1261 updateFocusRevision(revision); | |
| 1262 } | |
| 1263 | |
| 1264 private void updateFocusRevision(Revision revision) { | |
| 1265 if (fFocusRevision !is revision) | |
| 1266 onFocusRevisionChanged(fFocusRevision, revision); | |
| 1267 } | |
| 1268 | |
| 1269 /** | |
| 1270 * Handles a changing focus revision. | |
| 1271 * | |
| 1272 * @param previousRevision the old focus revision (<code>null</code> for no focus) | |
| 1273 * @param nextRevision the new focus revision (<code>null</code> for no focus) | |
| 1274 */ | |
| 1275 private void onFocusRevisionChanged(Revision previousRevision, Revision nextRevision) { | |
| 134 | 1276 if cast(DEBUG) |
|
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1277 System.out_.println("revision: " + previousRevision + " > " + nextRevision); //$NON-NLS-1$ //$NON-NLS-2$ |
| 129 | 1278 fFocusRevision= nextRevision; |
| 1279 uninstallWheelHandler(); | |
| 1280 installWheelHandler(); | |
| 1281 updateOverviewAnnotations(); | |
| 1282 redraw(); // pick up new highlights | |
| 1283 } | |
| 1284 | |
| 1285 /** | |
| 1286 * Uninstalls the mouse wheel handler. | |
| 1287 */ | |
| 1288 private void uninstallWheelHandler() { | |
| 1289 fControl.removeListener(DWT.MouseWheel, fMouseHandler); | |
| 1290 fWheelHandlerInstalled= false; | |
| 1291 } | |
| 1292 | |
| 1293 /** | |
| 1294 * Installs the mouse wheel handler. | |
| 1295 */ | |
| 1296 private void installWheelHandler() { | |
| 1297 if (fFocusRevision !is null && !fWheelHandlerInstalled) { | |
| 1298 //FIXME: does not work on Windows, because Canvas cannot get focus and therefore does not send out mouse wheel events: | |
| 1299 //https://bugs.eclipse.org/bugs/show_bug.cgi?id=81189 | |
| 1300 //see also https://bugs.eclipse.org/bugs/show_bug.cgi?id=75766 | |
| 1301 fControl.addListener(DWT.MouseWheel, fMouseHandler); | |
| 1302 fWheelHandlerInstalled= true; | |
| 1303 } | |
| 1304 } | |
| 1305 | |
| 1306 /** | |
| 1307 * Handles a mouse wheel event. | |
| 1308 * | |
| 1309 * @param event the mouse wheel event | |
| 1310 */ | |
| 1311 private void handleMouseWheel(Event event) { | |
| 1312 bool up= event.count > 0; | |
| 1313 int documentHoverLine= fFocusLine; | |
| 1314 | |
| 1315 ILineRange nextWidgetRange= null; | |
| 1316 ILineRange last= null; | |
| 1317 List ranges= fFocusRevision.getRegions(); | |
| 1318 if (up) { | |
| 1319 for (Iterator it= ranges.iterator(); it.hasNext();) { | |
| 134 | 1320 RevisionRange range= cast(RevisionRange) it.next(); |
| 129 | 1321 ILineRange widgetRange= modelLinesToWidgetLines(range); |
| 1322 if (contains(range, documentHoverLine)) { | |
| 1323 nextWidgetRange= last; | |
| 1324 break; | |
| 1325 } | |
| 1326 if (widgetRange !is null) | |
| 1327 last= widgetRange; | |
| 1328 } | |
| 1329 } else { | |
| 1330 for (ListIterator it= ranges.listIterator(ranges.size()); it.hasPrevious();) { | |
| 134 | 1331 RevisionRange range= cast(RevisionRange) it.previous(); |
| 129 | 1332 ILineRange widgetRange= modelLinesToWidgetLines(range); |
| 1333 if (contains(range, documentHoverLine)) { | |
| 1334 nextWidgetRange= last; | |
| 1335 break; | |
| 1336 } | |
| 1337 if (widgetRange !is null) | |
| 1338 last= widgetRange; | |
| 1339 } | |
| 1340 } | |
| 1341 | |
| 1342 if (nextWidgetRange is null) | |
| 1343 return; | |
| 1344 | |
| 1345 int widgetCurrentFocusLine= modelLinesToWidgetLines(new LineRange(documentHoverLine, 1)).getStartLine(); | |
| 1346 int widgetNextFocusLine= nextWidgetRange.getStartLine(); | |
| 1347 int newTopPixel= fWidget.getTopPixel() + JFaceTextUtil.computeLineHeight(fWidget, widgetCurrentFocusLine, widgetNextFocusLine, widgetNextFocusLine - widgetCurrentFocusLine); | |
| 1348 fWidget.setTopPixel(newTopPixel); | |
| 1349 if (newTopPixel < 0) { | |
| 1350 Point cursorLocation= fWidget.getDisplay().getCursorLocation(); | |
| 1351 cursorLocation.y+= newTopPixel; | |
| 1352 fWidget.getDisplay().setCursorLocation(cursorLocation); | |
| 1353 } else { | |
| 1354 int topPixel= fWidget.getTopPixel(); | |
| 1355 if (topPixel < newTopPixel) { | |
| 1356 Point cursorLocation= fWidget.getDisplay().getCursorLocation(); | |
| 1357 cursorLocation.y+= newTopPixel - topPixel; | |
| 1358 fWidget.getDisplay().setCursorLocation(cursorLocation); | |
| 1359 } | |
| 1360 } | |
| 1361 updateFocusLine(toDocumentLineNumber(fWidget.toControl(fWidget.getDisplay().getCursorLocation()).y)); | |
| 1362 immediateUpdate(); | |
| 1363 } | |
| 1364 | |
| 1365 /** | |
| 1366 * Triggers a redraw in the display thread. | |
| 1367 */ | |
| 1368 private final void postRedraw() { | |
| 1369 if (isConnected() && !fControl.isDisposed()) { | |
| 1370 Display d= fControl.getDisplay(); | |
| 1371 if (d !is null) { | |
| 135 | 1372 d.asyncExec(new class() Runnable { |
| 129 | 1373 public void run() { |
| 1374 redraw(); | |
| 1375 } | |
| 1376 }); | |
| 1377 } | |
| 1378 } | |
| 1379 } | |
| 1380 | |
| 1381 /** | |
| 1382 * Translates a y coordinate in the pixel coordinates of the column's control to a document line | |
| 1383 * number. | |
| 1384 * | |
| 1385 * @param y the y coordinate | |
| 1386 * @return the corresponding document line, -1 for no line | |
| 1387 * @see CompositeRuler#toDocumentLineNumber(int) | |
| 1388 */ | |
| 1389 private int toDocumentLineNumber(int y) { | |
| 1390 return fParentRuler.toDocumentLineNumber(y); | |
| 1391 } | |
| 1392 | |
| 1393 /** | |
| 1394 * Triggers redrawing of the column. | |
| 1395 */ | |
| 1396 private void redraw() { | |
| 1397 fColumn.redraw(); | |
| 1398 } | |
| 1399 | |
| 1400 /** | |
| 1401 * Triggers immediate redrawing of the entire column - use with care. | |
| 1402 */ | |
| 1403 private void immediateUpdate() { | |
| 1404 fParentRuler.immediateUpdate(); | |
| 1405 } | |
| 1406 | |
| 1407 /** | |
| 1408 * Returns the width of the column. | |
| 1409 * | |
| 1410 * @return the width of the column | |
| 1411 */ | |
| 1412 private int getWidth() { | |
| 1413 return fColumn.getWidth(); | |
| 1414 } | |
| 1415 | |
| 1416 /** | |
| 1417 * Returns the System background color for list widgets. | |
| 1418 * | |
| 1419 * @return the System background color for list widgets | |
| 1420 */ | |
| 1421 private Color getBackground() { | |
| 1422 if (fBackground is null) | |
| 1423 return fWidget.getDisplay().getSystemColor(DWT.COLOR_LIST_BACKGROUND); | |
| 1424 return fBackground; | |
| 1425 } | |
| 1426 | |
| 1427 /** | |
| 1428 * Sets the hover later returned by {@link #getHover()}. | |
| 1429 * | |
| 1430 * @param hover the hover | |
| 1431 */ | |
| 1432 public void setHover(IAnnotationHover hover) { | |
| 1433 // TODO ignore for now - must make revision hover settable from outside | |
| 1434 } | |
| 1435 | |
| 1436 /** | |
| 1437 * Returns <code>true</code> if the receiver can provide a hover for a certain document line. | |
| 1438 * | |
| 1439 * @param activeLine the document line of interest | |
| 1440 * @return <code>true</code> if the receiver can provide a hover | |
| 1441 */ | |
| 1442 public bool hasHover(int activeLine) { | |
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1443 return cast(ISourceViewer)fViewer && fHover.getHoverLineRange(cast(ISourceViewer) fViewer, activeLine) !is null; |
| 129 | 1444 } |
| 1445 | |
| 1446 /** | |
| 1447 * Returns the revision at a certain document offset, or <code>null</code> for none. | |
| 1448 * | |
| 1449 * @param offset the document offset | |
| 1450 * @return the revision at offset, or <code>null</code> for none | |
| 1451 */ | |
| 1452 Revision getRevision(int offset) { | |
| 1453 IDocument document= fViewer.getDocument(); | |
| 1454 int line; | |
| 1455 try { | |
| 1456 line= document.getLineOfOffset(offset); | |
| 1457 } catch (BadLocationException x) { | |
| 1458 return null; | |
| 1459 } | |
| 1460 if (line !is -1) { | |
| 1461 RevisionRange range= getRange(line); | |
| 1462 if (range !is null) | |
| 1463 return range.getRevision(); | |
| 1464 } | |
| 1465 return null; | |
| 1466 } | |
| 1467 | |
| 1468 /** | |
| 1469 * Returns <code>true</code> if a revision model has been set, <code>false</code> otherwise. | |
| 1470 * | |
| 1471 * @return <code>true</code> if a revision model has been set, <code>false</code> otherwise | |
| 1472 */ | |
| 1473 public bool hasInformation() { | |
| 1474 return fRevisionInfo !is null; | |
| 1475 } | |
| 1476 | |
| 1477 /** | |
| 1478 * Returns the width in chars required to display information. | |
| 1479 * | |
| 1480 * @return the width in chars required to display information | |
| 1481 * @since 3.3 | |
| 1482 */ | |
| 1483 public int getRequiredWidth() { | |
| 1484 if (fRequiredWidth is -1) { | |
| 1485 if (hasInformation() && (fShowRevision || fShowAuthor)) { | |
| 1486 int revisionWidth= 0; | |
| 1487 int authorWidth= 0; | |
| 1488 for (Iterator it= fRevisionInfo.getRevisions().iterator(); it.hasNext();) { | |
| 134 | 1489 Revision revision= cast(Revision) it.next(); |
| 129 | 1490 revisionWidth= Math.max(revisionWidth, revision.getId().length()); |
| 1491 authorWidth= Math.max(authorWidth, revision.getAuthor().length()); | |
| 1492 } | |
| 1493 fRevisionIdChars= revisionWidth + 1; | |
| 1494 if (fShowAuthor && fShowRevision) | |
| 1495 fRequiredWidth= revisionWidth + authorWidth + 2; | |
| 1496 else if (fShowAuthor) | |
| 1497 fRequiredWidth= authorWidth + 1; | |
| 1498 else | |
| 1499 fRequiredWidth= revisionWidth + 1; | |
| 1500 } else { | |
| 1501 fRequiredWidth= 0; | |
| 1502 } | |
| 1503 } | |
| 1504 return fRequiredWidth; | |
| 1505 } | |
| 1506 | |
| 1507 /** | |
| 1508 * Enables showing the revision id. | |
| 1509 * | |
| 1510 * @param show <code>true</code> to show the revision, <code>false</code> to hide it | |
| 1511 */ | |
| 1512 public void showRevisionId(bool show) { | |
| 1513 if (fShowRevision !is show) { | |
| 1514 fRequiredWidth= -1; | |
| 1515 fRevisionIdChars= 0; | |
| 1516 fShowRevision= show; | |
| 1517 postRedraw(); | |
| 1518 } | |
| 1519 } | |
| 1520 | |
| 1521 /** | |
| 1522 * Enables showing the revision author. | |
| 1523 * | |
| 1524 * @param show <code>true</code> to show the author, <code>false</code> to hide it | |
| 1525 */ | |
| 1526 public void showRevisionAuthor(bool show) { | |
| 1527 if (fShowAuthor !is show) { | |
| 1528 fRequiredWidth= -1; | |
| 1529 fRevisionIdChars= 0; | |
| 1530 fShowAuthor= show; | |
| 1531 postRedraw(); | |
| 1532 } | |
| 1533 } | |
| 1534 | |
| 1535 /** | |
| 1536 * Adds a revision listener. | |
| 1537 * | |
| 1538 * @param listener the listener | |
| 1539 * @since 3.3 | |
| 1540 */ | |
| 1541 public void addRevisionListener(IRevisionListener listener) { | |
| 1542 fRevisionListeners.add(listener); | |
| 1543 } | |
| 1544 | |
| 1545 /** | |
| 1546 * Removes a revision listener. | |
| 1547 * | |
| 1548 * @param listener the listener | |
| 1549 * @since 3.3 | |
| 1550 */ | |
| 1551 public void removeRevisionListener(IRevisionListener listener) { | |
| 1552 fRevisionListeners.remove(listener); | |
| 1553 } | |
| 1554 | |
| 1555 /** | |
| 1556 * Informs the revision listeners about a change. | |
| 1557 * | |
| 1558 * @since 3.3 | |
| 1559 */ | |
| 1560 private void informListeners() { | |
| 1561 if (fRevisionInfo is null || fRevisionListeners.isEmpty()) | |
| 1562 return; | |
| 1563 | |
| 1564 RevisionEvent event= new RevisionEvent(fRevisionInfo); | |
| 1565 Object[] listeners= fRevisionListeners.getListeners(); | |
| 1566 for (int i= 0; i < listeners.length; i++) { | |
| 134 | 1567 IRevisionListener listener= cast(IRevisionListener) listeners[i]; |
| 129 | 1568 listener.revisionInformationChanged(event); |
| 1569 } | |
| 1570 } | |
| 1571 } |