Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/html/BrowserInformationControl.d @ 163:e5dd0081ccba
exclude jface.text from dsss.conf
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 08 Sep 2008 01:01:30 +0200 |
| parents | 1a5b8f8129df |
| children | d994a8b2cdf7 |
| 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 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.internal.text.html.BrowserInformationControl; | |
| 14 | |
| 131 | 15 import dwtx.jface.internal.text.html.HTML2TextReader; // packageimport |
| 16 import dwtx.jface.internal.text.html.HTMLPrinter; // packageimport | |
| 17 import dwtx.jface.internal.text.html.SubstitutionTextReader; // packageimport | |
| 18 import dwtx.jface.internal.text.html.HTMLTextPresenter; // packageimport | |
| 19 import dwtx.jface.internal.text.html.BrowserInput; // packageimport | |
| 20 import dwtx.jface.internal.text.html.SingleCharReader; // packageimport | |
| 21 import dwtx.jface.internal.text.html.BrowserInformationControlInput; // packageimport | |
| 22 import dwtx.jface.internal.text.html.HTMLMessages; // packageimport | |
| 23 | |
| 162 | 24 import dwt.dwthelper.utils; |
| 25 | |
| 26 import dwt.widgets.Shell; | |
| 27 import dwt.widgets.Composite; | |
| 28 import dwtx.jface.text.AbstractInformationControl; | |
| 29 import dwtx.jface.text.IInformationControlExtension2; | |
| 30 import dwtx.jface.text.IDelayedInputChangeProvider; | |
| 31 import dwtx.jface.text.IInputChangedListener; | |
| 32 | |
|
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33 pragma( msg, "dwtx.jface.internal.text.html.BrowserInformationControl: SWT browser control missing" ); |
| 162 | 34 class BrowserInformationControl : AbstractInformationControl , IInformationControlExtension2, IDelayedInputChangeProvider { |
| 35 public this(Shell parent, String symbolicFontName, bool resizable){} | |
| 36 public static bool isAvailable(Composite parent){} | |
| 37 public void setInformation(String content) {} | |
| 38 protected void createContent(Composite parent) { | |
| 39 } | |
| 40 public void setInput(Object input) {} | |
| 41 public void setDelayedInputChangeListener(IInputChangedListener inputChangeListener) {} | |
| 42 public bool hasContents() { | |
| 43 return false; | |
| 44 } | |
| 45 } | |
| 46 | |
| 158 | 47 // FIXME needs Browser :/ |
| 48 /++ | |
| 129 | 49 |
| 158 | 50 import dwtx.dwtxhelper.StringReader; |
|
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51 import dwtx.dwtxhelper.Collection; |
| 129 | 52 |
| 53 import dwt.DWT; | |
| 54 import dwt.DWTError; | |
| 55 import dwt.browser.Browser; | |
| 56 import dwt.browser.LocationListener; | |
| 57 import dwt.browser.ProgressAdapter; | |
| 58 import dwt.browser.ProgressEvent; | |
| 59 import dwt.custom.StyleRange; | |
| 60 import dwt.events.KeyEvent; | |
| 61 import dwt.events.KeyListener; | |
| 62 import dwt.graphics.Color; | |
| 63 import dwt.graphics.Font; | |
| 64 import dwt.graphics.FontData; | |
| 65 import dwt.graphics.GC; | |
| 66 import dwt.graphics.Point; | |
| 67 import dwt.graphics.Rectangle; | |
| 68 import dwt.graphics.TextLayout; | |
| 69 import dwt.graphics.TextStyle; | |
| 70 import dwt.widgets.Composite; | |
| 71 import dwt.widgets.Display; | |
| 72 import dwt.widgets.Menu; | |
| 73 import dwt.widgets.Shell; | |
| 74 import dwt.widgets.Slider; | |
| 75 import dwtx.core.runtime.Assert; | |
| 76 import dwtx.core.runtime.ListenerList; | |
| 77 import dwtx.jface.action.ToolBarManager; | |
| 78 import dwtx.jface.resource.JFaceResources; | |
| 79 import dwtx.jface.text.AbstractInformationControl; | |
| 80 import dwtx.jface.text.IDelayedInputChangeProvider; | |
| 81 import dwtx.jface.text.IInformationControlExtension2; | |
| 82 import dwtx.jface.text.IInputChangedListener; | |
| 83 import dwtx.jface.text.TextPresentation; | |
| 84 | |
| 85 | |
| 86 /** | |
| 87 * Displays HTML information in a {@link dwt.browser.Browser} widget. | |
| 88 * <p> | |
| 89 * This {@link IInformationControlExtension2} expects {@link #setInput(Object)} to be | |
| 90 * called with an argument of type {@link BrowserInformationControlInput}. | |
| 91 * </p> | |
| 92 * <p> | |
| 93 * Moved into this package from <code>dwtx.jface.internal.text.revisions</code>.</p> | |
| 94 * <p> | |
| 95 * This class may be instantiated; it is not intended to be subclassed.</p> | |
| 96 * <p> | |
| 97 * Current problems: | |
| 98 * <ul> | |
| 99 * <li>the size computation is too small</li> | |
| 100 * <li>focusLost event is not sent - see https://bugs.eclipse.org/bugs/show_bug.cgi?id=84532</li> | |
| 101 * </ul> | |
| 102 * </p> | |
| 150 | 103 * |
| 129 | 104 * @since 3.2 |
| 105 */ | |
| 106 public class BrowserInformationControl : AbstractInformationControl , IInformationControlExtension2, IDelayedInputChangeProvider { | |
| 107 | |
| 108 | |
| 109 /** | |
| 110 * Tells whether the DWT Browser widget and hence this information | |
| 111 * control is available. | |
| 112 * | |
| 113 * @param parent the parent component used for checking or <code>null</code> if none | |
| 114 * @return <code>true</code> if this control is available | |
| 115 */ | |
| 116 public static bool isAvailable(Composite parent) { | |
| 117 if (!fgAvailabilityChecked) { | |
| 118 try { | |
| 119 Browser browser= new Browser(parent, DWT.NONE); | |
| 120 browser.dispose(); | |
| 121 fgIsAvailable= true; | |
| 150 | 122 |
| 129 | 123 Slider sliderV= new Slider(parent, DWT.VERTICAL); |
| 124 Slider sliderH= new Slider(parent, DWT.HORIZONTAL); | |
| 125 int width= sliderV.computeSize(DWT.DEFAULT, DWT.DEFAULT).x; | |
| 126 int height= sliderH.computeSize(DWT.DEFAULT, DWT.DEFAULT).y; | |
| 127 fgScrollBarSize= new Point(width, height); | |
| 128 sliderV.dispose(); | |
| 129 sliderH.dispose(); | |
| 130 } catch (DWTError er) { | |
| 131 fgIsAvailable= false; | |
| 132 } finally { | |
| 133 fgAvailabilityChecked= true; | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 return fgIsAvailable; | |
| 138 } | |
| 139 | |
| 140 | |
| 141 /** | |
| 142 * Minimal size constraints. | |
| 143 * @since 3.2 | |
| 144 */ | |
| 147 | 145 private static const int MIN_WIDTH= 80; |
| 146 private static const int MIN_HEIGHT= 50; | |
| 129 | 147 |
| 150 | 148 |
| 129 | 149 /** |
| 150 * Availability checking cache. | |
| 151 */ | |
| 152 private static bool fgIsAvailable= false; | |
| 153 private static bool fgAvailabilityChecked= false; | |
| 154 | |
| 155 /** | |
| 156 * Cached scroll bar width and height | |
| 157 * @since 3.4 | |
| 158 */ | |
| 159 private static Point fgScrollBarSize; | |
| 150 | 160 |
| 129 | 161 /** The control's browser widget */ |
| 162 private Browser fBrowser; | |
| 163 /** Tells whether the browser has content */ | |
| 164 private bool fBrowserHasContent; | |
| 165 /** Text layout used to approximate size of content when rendered in browser */ | |
| 166 private TextLayout fTextLayout; | |
| 167 /** Bold text style */ | |
| 168 private TextStyle fBoldStyle; | |
| 169 | |
| 170 private BrowserInformationControlInput fInput; | |
| 171 | |
| 172 /** | |
| 173 * <code>true</code> iff the browser has completed loading of the last | |
| 174 * input set via {@link #setInformation(String)}. | |
| 175 * @since 3.4 | |
| 176 */ | |
| 177 private bool fCompleted= false; | |
| 178 | |
| 179 /** | |
| 180 * The listener to be notified when a delayed location changing event happened. | |
| 181 * @since 3.4 | |
| 182 */ | |
| 183 private IInputChangedListener fDelayedInputChangeListener; | |
| 184 | |
| 185 /** | |
| 186 * The listeners to be notified when the input changed. | |
| 187 * @since 3.4 | |
| 188 */ | |
| 189 private ListenerList/*<IInputChangedListener>*/ fInputChangeListeners= new ListenerList(ListenerList.IDENTITY); | |
| 190 | |
| 191 /** | |
| 192 * The symbolic name of the font used for size computations, or <code>null</code> to use dialog font. | |
| 193 * @since 3.4 | |
| 194 */ | |
| 146 | 195 private const String fSymbolicFontName; |
| 129 | 196 |
| 197 | |
| 198 /** | |
| 199 * Creates a browser information control with the given shell as parent. | |
| 150 | 200 * |
| 129 | 201 * @param parent the parent shell |
| 202 * @param symbolicFontName the symbolic name of the font used for size computations | |
| 203 * @param resizable <code>true</code> if the control should be resizable | |
| 204 * @since 3.4 | |
| 205 */ | |
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206 public this(Shell parent, String symbolicFontName, bool resizable) { |
| 129 | 207 super(parent, resizable); |
| 208 fSymbolicFontName= symbolicFontName; | |
| 209 create(); | |
| 210 } | |
| 150 | 211 |
| 129 | 212 /** |
| 213 * Creates a browser information control with the given shell as parent. | |
| 150 | 214 * |
| 129 | 215 * @param parent the parent shell |
| 216 * @param symbolicFontName the symbolic name of the font used for size computations | |
| 217 * @param statusFieldText the text to be used in the optional status field | |
| 218 * or <code>null</code> if the status field should be hidden | |
| 219 * @since 3.4 | |
| 220 */ | |
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221 public this(Shell parent, String symbolicFontName, String statusFieldText) { |
| 129 | 222 super(parent, statusFieldText); |
| 223 fSymbolicFontName= symbolicFontName; | |
| 224 create(); | |
| 225 } | |
| 150 | 226 |
| 129 | 227 /** |
| 228 * Creates a browser information control with the given shell as parent. | |
| 150 | 229 * |
| 129 | 230 * @param parent the parent shell |
| 231 * @param symbolicFontName the symbolic name of the font used for size computations | |
| 232 * @param toolBarManager the manager or <code>null</code> if toolbar is not desired | |
| 233 * @since 3.4 | |
| 234 */ | |
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235 public this(Shell parent, String symbolicFontName, ToolBarManager toolBarManager) { |
| 129 | 236 super(parent, toolBarManager); |
| 237 fSymbolicFontName= symbolicFontName; | |
| 238 create(); | |
| 239 } | |
| 150 | 240 |
| 129 | 241 /* |
| 242 * @see dwtx.jface.text.AbstractInformationControl#createContent(dwt.widgets.Composite) | |
| 243 */ | |
| 244 protected void createContent(Composite parent) { | |
| 245 fBrowser= new Browser(parent, DWT.NONE); | |
| 150 | 246 |
| 129 | 247 Display display= getShell().getDisplay(); |
| 248 fBrowser.setForeground(display.getSystemColor(DWT.COLOR_INFO_FOREGROUND)); | |
| 249 fBrowser.setBackground(display.getSystemColor(DWT.COLOR_INFO_BACKGROUND)); | |
| 135 | 250 fBrowser.addKeyListener(new class() KeyListener { |
| 129 | 251 |
| 252 public void keyPressed(KeyEvent e) { | |
| 253 if (e.character is 0x1B) // ESC | |
| 254 getShell().dispose(); // XXX: Just hide? Would avoid constant recreations. | |
| 255 } | |
| 256 | |
| 257 public void keyReleased(KeyEvent e) {} | |
| 258 }); | |
| 259 | |
| 135 | 260 fBrowser.addProgressListener(new class() ProgressAdapter { |
| 129 | 261 public void completed(ProgressEvent event) { |
| 262 fCompleted= true; | |
| 263 } | |
| 264 }); | |
| 150 | 265 |
| 129 | 266 // Replace browser's built-in context menu with none |
| 267 fBrowser.setMenu(new Menu(getShell(), DWT.NONE)); | |
| 150 | 268 |
| 129 | 269 createTextLayout(); |
| 270 } | |
| 271 | |
| 272 /** | |
| 273 * {@inheritDoc} | |
| 274 * @deprecated use {@link #setInput(Object)} | |
| 275 */ | |
| 158 | 276 public void setInformation(String content) { |
| 277 setInput(new class(null,content) BrowserInformationControlInput { | |
| 278 String content_; | |
| 279 this(BrowserInformationControlInput input, String a){ | |
| 280 super(input); | |
| 281 content_=a; | |
| 282 } | |
| 129 | 283 public String getHtml() { |
| 158 | 284 return content_; |
| 129 | 285 } |
| 286 | |
| 287 public String getInputName() { | |
| 288 return ""; //$NON-NLS-1$ | |
| 289 } | |
| 290 | |
| 291 public Object getInputElement() { | |
| 158 | 292 return stringcast(content_); |
| 129 | 293 } |
| 294 }); | |
| 295 } | |
| 150 | 296 |
| 129 | 297 /** |
| 298 * {@inheritDoc} This control can handle {@link String} and | |
| 299 * {@link BrowserInformationControlInput}. | |
| 300 */ | |
| 301 public void setInput(Object input) { | |
| 150 | 302 Assert.isLegal(input is null || cast(String)input || cast(BrowserInformationControlInput)input ); |
| 129 | 303 |
| 138 | 304 if ( cast(String)input ) { |
| 134 | 305 setInformation(cast(String)input); |
| 129 | 306 return; |
| 307 } | |
| 308 | |
| 134 | 309 fInput= cast(BrowserInformationControlInput)input; |
| 150 | 310 |
| 129 | 311 String content= null; |
| 312 if (fInput !is null) | |
| 313 content= fInput.getHtml(); | |
| 150 | 314 |
| 129 | 315 fBrowserHasContent= content !is null && content.length() > 0; |
| 316 | |
| 317 if (!fBrowserHasContent) | |
| 318 content= "<html><body ></html>"; //$NON-NLS-1$ | |
| 319 | |
| 320 bool RTL= (getShell().getStyle() & DWT.RIGHT_TO_LEFT) !is 0; | |
| 321 bool resizable= isResizable(); | |
| 322 | |
| 323 // The default "overflow:auto" would not result in a predictable width for the client area | |
| 324 // and the re-wrapping would cause visual noise | |
| 325 String[] styles= null; | |
| 326 if (RTL && resizable) | |
| 150 | 327 styles= [ "direction:rtl;", "overflow:scroll;", "word-wrap:break-word;" ]; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| 129 | 328 else if (RTL && !resizable) |
| 150 | 329 styles= [ "direction:rtl;", "overflow:hidden;", "word-wrap:break-word;" ]; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| 129 | 330 else if (!resizable) |
| 331 //XXX: In IE, "word-wrap: break-word;" causes bogus wrapping even in non-broken words :-(see e.g. Javadoc of String). | |
| 332 // Re-check whether we really still need this now that the Javadoc Hover header already sets this style. | |
| 150 | 333 styles= [ "overflow:hidden;"/*, "word-wrap: break-word;"*/ ]; //$NON-NLS-1$ |
| 129 | 334 else |
| 150 | 335 styles= [ "overflow:scroll;" ]; //$NON-NLS-1$ |
| 336 | |
| 129 | 337 StringBuffer buffer= new StringBuffer(content); |
| 338 HTMLPrinter.insertStyles(buffer, styles); | |
| 339 content= buffer.toString(); | |
| 150 | 340 |
| 129 | 341 /* |
| 342 * XXX: Should add some JavaScript here that shows something like | |
| 343 * "(continued...)" or "..." at the end of the visible area when the page overflowed | |
| 344 * with "overflow:hidden;". | |
| 345 */ | |
| 150 | 346 |
| 129 | 347 fCompleted= false; |
| 348 fBrowser.setText(content); | |
| 150 | 349 |
| 129 | 350 Object[] listeners= fInputChangeListeners.getListeners(); |
| 351 for (int i= 0; i < listeners.length; i++) | |
| 134 | 352 (cast(IInputChangedListener)listeners[i]).inputChanged(fInput); |
| 129 | 353 } |
| 354 | |
| 355 /* | |
| 356 * @see IInformationControl#setVisible(bool) | |
| 357 */ | |
| 358 public void setVisible(bool visible) { | |
| 359 Shell shell= getShell(); | |
| 360 if (shell.isVisible() is visible) | |
| 361 return; | |
| 150 | 362 |
| 129 | 363 if (!visible) { |
| 364 super.setVisible(false); | |
| 365 setInput(null); | |
| 366 return; | |
| 367 } | |
| 150 | 368 |
| 129 | 369 /* |
| 370 * The Browser widget flickers when made visible while it is not completely loaded. | |
| 371 * The fix is to delay the call to setVisible until either loading is completed | |
| 372 * (see ProgressListener in constructor), or a timeout has been reached. | |
| 373 */ | |
| 374 final Display display= shell.getDisplay(); | |
| 150 | 375 |
| 129 | 376 // Make sure the display wakes from sleep after timeout: |
| 135 | 377 display.timerExec(100, new class() Runnable { |
| 129 | 378 public void run() { |
| 379 fCompleted= true; | |
| 380 } | |
| 381 }); | |
| 150 | 382 |
| 129 | 383 while (!fCompleted) { |
| 384 // Drive the event loop to process the events required to load the browser widget's contents: | |
| 385 if (!display.readAndDispatch()) { | |
| 386 display.sleep(); | |
| 387 } | |
| 388 } | |
| 150 | 389 |
| 129 | 390 shell= getShell(); |
| 391 if (shell is null || shell.isDisposed()) | |
| 392 return; | |
| 150 | 393 |
| 129 | 394 /* |
| 395 * Avoids flickering when replacing hovers, especially on Vista in ON_CLICK mode. | |
| 396 * Causes flickering on GTK. Carbon does not care. | |
| 397 */ | |
| 398 if ("win32".equals(DWT.getPlatform())) //$NON-NLS-1$ | |
| 399 shell.moveAbove(null); | |
| 150 | 400 |
| 129 | 401 super.setVisible(true); |
| 402 } | |
| 403 | |
| 404 /* | |
| 405 * @see dwtx.jface.text.AbstractInformationControl#setSize(int, int) | |
| 406 */ | |
| 407 public void setSize(int width, int height) { | |
| 408 fBrowser.setRedraw(false); // avoid flickering | |
| 409 try { | |
| 410 super.setSize(width, height); | |
| 411 } finally { | |
| 412 fBrowser.setRedraw(true); | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 /** | |
| 417 * Creates and initializes the text layout used | |
| 418 * to compute the size hint. | |
| 150 | 419 * |
| 129 | 420 * @since 3.2 |
| 421 */ | |
| 422 private void createTextLayout() { | |
| 423 fTextLayout= new TextLayout(fBrowser.getDisplay()); | |
| 150 | 424 |
| 129 | 425 // Initialize fonts |
| 426 Font font= fSymbolicFontName is null ? JFaceResources.getDialogFont() : JFaceResources.getFont(fSymbolicFontName); | |
| 427 fTextLayout.setFont(font); | |
| 428 fTextLayout.setWidth(-1); | |
| 429 FontData[] fontData= font.getFontData(); | |
| 430 for (int i= 0; i < fontData.length; i++) | |
| 431 fontData[i].setStyle(DWT.BOLD); | |
| 432 font= new Font(getShell().getDisplay(), fontData); | |
| 433 fBoldStyle= new TextStyle(font, null, null); | |
| 150 | 434 |
| 129 | 435 // Compute and set tab width |
| 436 fTextLayout.setText(" "); //$NON-NLS-1$ | |
| 437 int tabWidth = fTextLayout.getBounds().width; | |
| 150 | 438 fTextLayout.setTabs([tabWidth]); |
| 129 | 439 |
| 440 fTextLayout.setText(""); //$NON-NLS-1$ | |
| 441 } | |
| 442 | |
| 443 /* | |
| 444 * @see IInformationControl#dispose() | |
| 445 */ | |
| 446 public void dispose() { | |
| 447 if (fTextLayout !is null) { | |
| 448 fTextLayout.dispose(); | |
| 449 fTextLayout= null; | |
| 450 } | |
| 451 if (fBoldStyle !is null) { | |
| 452 fBoldStyle.font.dispose(); | |
| 453 fBoldStyle= null; | |
| 454 } | |
| 455 fBrowser= null; | |
| 150 | 456 |
| 129 | 457 super.dispose(); |
| 458 } | |
| 459 | |
| 460 /* | |
| 461 * @see IInformationControl#computeSizeHint() | |
| 462 */ | |
| 463 public Point computeSizeHint() { | |
| 464 Point sizeConstraints= getSizeConstraints(); | |
| 465 Rectangle trim= computeTrim(); | |
| 466 int height= trim.height; | |
| 150 | 467 |
| 129 | 468 //FIXME: The HTML2TextReader does not render <p> like a browser. |
| 469 // Instead of inserting an empty line, it just adds a single line break. | |
| 470 // Furthermore, the indentation of <dl><dd> elements is too small (e.g with a long @see line) | |
| 471 TextPresentation presentation= new TextPresentation(); | |
| 472 HTML2TextReader reader= new HTML2TextReader(new StringReader(fInput.getHtml()), presentation); | |
| 473 String text; | |
| 474 try { | |
| 475 text= reader.getString(); | |
| 476 } catch (IOException e) { | |
| 477 text= ""; //$NON-NLS-1$ | |
| 478 } | |
| 479 | |
| 480 fTextLayout.setText(text); | |
| 481 fTextLayout.setWidth(sizeConstraints is null ? DWT.DEFAULT : sizeConstraints.x - trim.width); | |
| 482 Iterator iter= presentation.getAllStyleRangeIterator(); | |
| 483 while (iter.hasNext()) { | |
| 134 | 484 StyleRange sr= cast(StyleRange)iter.next(); |
| 129 | 485 if (sr.fontStyle is DWT.BOLD) |
| 486 fTextLayout.setStyle(fBoldStyle, sr.start, sr.start + sr.length - 1); | |
| 487 } | |
| 150 | 488 |
| 129 | 489 Rectangle bounds= fTextLayout.getBounds(); // does not return minimum width, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=217446 |
| 490 int lineCount= fTextLayout.getLineCount(); | |
| 491 int textWidth= 0; | |
| 492 for (int i= 0; i < lineCount; i++) { | |
| 493 Rectangle rect= fTextLayout.getLineBounds(i); | |
| 494 int lineWidth= rect.x + rect.width; | |
| 495 if (i is 0) | |
| 496 lineWidth += fInput.getLeadingImageWidth(); | |
| 497 textWidth= Math.max(textWidth, lineWidth); | |
| 498 } | |
| 499 bounds.width= textWidth; | |
| 500 fTextLayout.setText(""); //$NON-NLS-1$ | |
| 150 | 501 |
| 129 | 502 int minWidth= bounds.width; |
| 503 height= height + bounds.height; | |
| 150 | 504 |
| 129 | 505 // Add some air to accommodate for different browser renderings |
| 506 minWidth+= 15; | |
| 507 height+= 15; | |
| 508 | |
| 150 | 509 |
| 129 | 510 // Apply max size constraints |
| 511 if (sizeConstraints !is null) { | |
| 512 if (sizeConstraints.x !is DWT.DEFAULT) | |
| 513 minWidth= Math.min(sizeConstraints.x, minWidth + trim.width); | |
| 514 if (sizeConstraints.y !is DWT.DEFAULT) | |
| 515 height= Math.min(sizeConstraints.y, height); | |
| 516 } | |
| 517 | |
| 518 // Ensure minimal size | |
| 519 int width= Math.max(MIN_WIDTH, minWidth); | |
| 520 height= Math.max(MIN_HEIGHT, height); | |
| 150 | 521 |
| 129 | 522 return new Point(width, height); |
| 523 } | |
| 524 | |
| 525 /* | |
| 526 * @see dwtx.jface.text.IInformationControlExtension3#computeTrim() | |
| 527 */ | |
| 528 public Rectangle computeTrim() { | |
| 529 Rectangle trim= super.computeTrim(); | |
| 530 if (isResizable()) { | |
| 531 bool RTL= (getShell().getStyle() & DWT.RIGHT_TO_LEFT) !is 0; | |
| 150 | 532 if (RTL) { |
| 129 | 533 trim.x-= fgScrollBarSize.x; |
| 534 } | |
| 535 trim.width+= fgScrollBarSize.x; | |
| 536 trim.height+= fgScrollBarSize.y; | |
| 537 } | |
| 538 return trim; | |
| 539 } | |
| 150 | 540 |
| 129 | 541 /** |
| 542 * Adds the listener to the collection of listeners who will be | |
| 543 * notified when the current location has changed or is about to change. | |
| 150 | 544 * |
| 129 | 545 * @param listener the location listener |
| 546 * @since 3.4 | |
| 547 */ | |
| 548 public void addLocationListener(LocationListener listener) { | |
| 549 fBrowser.addLocationListener(listener); | |
| 550 } | |
| 551 | |
| 552 /* | |
| 553 * @see IInformationControl#setForegroundColor(Color) | |
| 554 */ | |
| 555 public void setForegroundColor(Color foreground) { | |
| 556 super.setForegroundColor(foreground); | |
| 557 fBrowser.setForeground(foreground); | |
| 558 } | |
| 559 | |
| 560 /* | |
| 561 * @see IInformationControl#setBackgroundColor(Color) | |
| 562 */ | |
| 563 public void setBackgroundColor(Color background) { | |
| 564 super.setBackgroundColor(background); | |
| 565 fBrowser.setBackground(background); | |
| 566 } | |
| 567 | |
| 568 /* | |
| 569 * @see IInformationControlExtension#hasContents() | |
| 570 */ | |
| 571 public bool hasContents() { | |
| 572 return fBrowserHasContent; | |
| 573 } | |
| 150 | 574 |
| 129 | 575 /** |
| 576 * Adds a listener for input changes to this input change provider. | |
| 577 * Has no effect if an identical listener is already registered. | |
| 150 | 578 * |
| 129 | 579 * @param inputChangeListener the listener to add |
| 580 * @since 3.4 | |
| 581 */ | |
| 582 public void addInputChangeListener(IInputChangedListener inputChangeListener) { | |
| 583 Assert.isNotNull(inputChangeListener); | |
| 584 fInputChangeListeners.add(inputChangeListener); | |
| 585 } | |
| 150 | 586 |
| 129 | 587 /** |
| 588 * Removes the given input change listener from this input change provider. | |
| 589 * Has no effect if an identical listener is not registered. | |
| 150 | 590 * |
| 129 | 591 * @param inputChangeListener the listener to remove |
| 592 * @since 3.4 | |
| 593 */ | |
| 594 public void removeInputChangeListener(IInputChangedListener inputChangeListener) { | |
| 595 fInputChangeListeners.remove(inputChangeListener); | |
| 596 } | |
| 150 | 597 |
| 129 | 598 /* |
| 599 * @see dwtx.jface.text.IDelayedInputChangeProvider#setDelayedInputChangeListener(dwtx.jface.text.IInputChangedListener) | |
| 600 * @since 3.4 | |
| 601 */ | |
| 602 public void setDelayedInputChangeListener(IInputChangedListener inputChangeListener) { | |
| 603 fDelayedInputChangeListener= inputChangeListener; | |
| 604 } | |
| 150 | 605 |
| 129 | 606 /** |
| 607 * Tells whether a delayed input change listener is registered. | |
| 150 | 608 * |
| 129 | 609 * @return <code>true</code> iff a delayed input change |
| 610 * listener is currently registered | |
| 611 * @since 3.4 | |
| 612 */ | |
| 613 public bool hasDelayedInputChangeListener() { | |
| 614 return fDelayedInputChangeListener !is null; | |
| 615 } | |
| 150 | 616 |
| 129 | 617 /** |
| 618 * Notifies listeners of a delayed input change. | |
| 150 | 619 * |
| 129 | 620 * @param newInput the new input, or <code>null</code> to request cancellation |
| 621 * @since 3.4 | |
| 622 */ | |
| 623 public void notifyDelayedInputChange(Object newInput) { | |
| 624 if (fDelayedInputChangeListener !is null) | |
| 625 fDelayedInputChangeListener.inputChanged(newInput); | |
| 626 } | |
| 150 | 627 |
| 129 | 628 /* |
| 629 * @see java.lang.Object#toString() | |
| 630 * @since 3.4 | |
| 631 */ | |
| 160 | 632 public override String toString() { |
| 129 | 633 String style= (getShell().getStyle() & DWT.RESIZE) is 0 ? "fixed" : "resizeable"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 634 return super.toString() + " - style: " + style; //$NON-NLS-1$ | |
| 635 } | |
| 636 | |
| 637 /** | |
| 638 * @return the current browser input or <code>null</code> | |
| 639 */ | |
| 640 public BrowserInformationControlInput getInput() { | |
| 641 return fInput; | |
| 642 } | |
| 150 | 643 |
| 129 | 644 /* |
| 645 * @see dwtx.jface.text.IInformationControlExtension5#computeSizeConstraints(int, int) | |
| 646 */ | |
| 647 public Point computeSizeConstraints(int widthInChars, int heightInChars) { | |
| 648 if (fSymbolicFontName is null) | |
| 649 return null; | |
| 150 | 650 |
| 129 | 651 GC gc= new GC(fBrowser); |
| 652 Font font= fSymbolicFontName is null ? JFaceResources.getDialogFont() : JFaceResources.getFont(fSymbolicFontName); | |
| 653 gc.setFont(font); | |
| 654 int width= gc.getFontMetrics().getAverageCharWidth(); | |
| 655 int height= gc.getFontMetrics().getHeight(); | |
| 656 gc.dispose(); | |
| 150 | 657 |
| 129 | 658 return new Point(widthInChars * width, heightInChars * height); |
| 659 } | |
| 660 | |
| 661 } | |
| 158 | 662 |
| 160 | 663 ++/ |