Mercurial > projects > dwt-addons
annotate dwtx/jface/internal/text/html/BrowserInformationControl.d @ 172:d994a8b2cdf7
again compile fixes
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Wed, 10 Sep 2008 23:14:02 +0200 |
| parents | e5dd0081ccba |
| children | 8995e830f75e |
| 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 { |
| 172 | 35 public this(Shell parent, String symbolicFontName, bool resizable){ |
| 36 super(parent, resizable); | |
| 37 implMissing(__FILE__,__LINE__); | |
| 38 } | |
| 39 public static bool isAvailable(Composite parent){ | |
| 40 implMissing(__FILE__,__LINE__); | |
| 41 return false; | |
| 42 } | |
| 43 public void setInformation(String content) { | |
| 44 implMissing(__FILE__,__LINE__); | |
| 45 } | |
| 162 | 46 protected void createContent(Composite parent) { |
| 172 | 47 implMissing(__FILE__,__LINE__); |
| 162 | 48 } |
| 172 | 49 public void setInput(Object input) { |
| 50 implMissing(__FILE__,__LINE__); | |
| 51 } | |
| 52 public void setDelayedInputChangeListener(IInputChangedListener inputChangeListener) { | |
| 53 implMissing(__FILE__,__LINE__); | |
| 54 } | |
| 162 | 55 public bool hasContents() { |
| 172 | 56 implMissing(__FILE__,__LINE__); |
| 162 | 57 return false; |
| 58 } | |
| 59 } | |
| 60 | |
| 158 | 61 // FIXME needs Browser :/ |
| 62 /++ | |
| 129 | 63 |
| 158 | 64 import dwtx.dwtxhelper.StringReader; |
|
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65 import dwtx.dwtxhelper.Collection; |
| 129 | 66 |
| 67 import dwt.DWT; | |
| 68 import dwt.DWTError; | |
| 69 import dwt.browser.Browser; | |
| 70 import dwt.browser.LocationListener; | |
| 71 import dwt.browser.ProgressAdapter; | |
| 72 import dwt.browser.ProgressEvent; | |
| 73 import dwt.custom.StyleRange; | |
| 74 import dwt.events.KeyEvent; | |
| 75 import dwt.events.KeyListener; | |
| 76 import dwt.graphics.Color; | |
| 77 import dwt.graphics.Font; | |
| 78 import dwt.graphics.FontData; | |
| 79 import dwt.graphics.GC; | |
| 80 import dwt.graphics.Point; | |
| 81 import dwt.graphics.Rectangle; | |
| 82 import dwt.graphics.TextLayout; | |
| 83 import dwt.graphics.TextStyle; | |
| 84 import dwt.widgets.Composite; | |
| 85 import dwt.widgets.Display; | |
| 86 import dwt.widgets.Menu; | |
| 87 import dwt.widgets.Shell; | |
| 88 import dwt.widgets.Slider; | |
| 89 import dwtx.core.runtime.Assert; | |
| 90 import dwtx.core.runtime.ListenerList; | |
| 91 import dwtx.jface.action.ToolBarManager; | |
| 92 import dwtx.jface.resource.JFaceResources; | |
| 93 import dwtx.jface.text.AbstractInformationControl; | |
| 94 import dwtx.jface.text.IDelayedInputChangeProvider; | |
| 95 import dwtx.jface.text.IInformationControlExtension2; | |
| 96 import dwtx.jface.text.IInputChangedListener; | |
| 97 import dwtx.jface.text.TextPresentation; | |
| 98 | |
| 99 | |
| 100 /** | |
| 101 * Displays HTML information in a {@link dwt.browser.Browser} widget. | |
| 102 * <p> | |
| 103 * This {@link IInformationControlExtension2} expects {@link #setInput(Object)} to be | |
| 104 * called with an argument of type {@link BrowserInformationControlInput}. | |
| 105 * </p> | |
| 106 * <p> | |
| 107 * Moved into this package from <code>dwtx.jface.internal.text.revisions</code>.</p> | |
| 108 * <p> | |
| 109 * This class may be instantiated; it is not intended to be subclassed.</p> | |
| 110 * <p> | |
| 111 * Current problems: | |
| 112 * <ul> | |
| 113 * <li>the size computation is too small</li> | |
| 114 * <li>focusLost event is not sent - see https://bugs.eclipse.org/bugs/show_bug.cgi?id=84532</li> | |
| 115 * </ul> | |
| 116 * </p> | |
| 150 | 117 * |
| 129 | 118 * @since 3.2 |
| 119 */ | |
| 120 public class BrowserInformationControl : AbstractInformationControl , IInformationControlExtension2, IDelayedInputChangeProvider { | |
| 121 | |
| 122 | |
| 123 /** | |
| 124 * Tells whether the DWT Browser widget and hence this information | |
| 125 * control is available. | |
| 126 * | |
| 127 * @param parent the parent component used for checking or <code>null</code> if none | |
| 128 * @return <code>true</code> if this control is available | |
| 129 */ | |
| 130 public static bool isAvailable(Composite parent) { | |
| 131 if (!fgAvailabilityChecked) { | |
| 132 try { | |
| 133 Browser browser= new Browser(parent, DWT.NONE); | |
| 134 browser.dispose(); | |
| 135 fgIsAvailable= true; | |
| 150 | 136 |
| 129 | 137 Slider sliderV= new Slider(parent, DWT.VERTICAL); |
| 138 Slider sliderH= new Slider(parent, DWT.HORIZONTAL); | |
| 139 int width= sliderV.computeSize(DWT.DEFAULT, DWT.DEFAULT).x; | |
| 140 int height= sliderH.computeSize(DWT.DEFAULT, DWT.DEFAULT).y; | |
| 141 fgScrollBarSize= new Point(width, height); | |
| 142 sliderV.dispose(); | |
| 143 sliderH.dispose(); | |
| 144 } catch (DWTError er) { | |
| 145 fgIsAvailable= false; | |
| 146 } finally { | |
| 147 fgAvailabilityChecked= true; | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 return fgIsAvailable; | |
| 152 } | |
| 153 | |
| 154 | |
| 155 /** | |
| 156 * Minimal size constraints. | |
| 157 * @since 3.2 | |
| 158 */ | |
| 147 | 159 private static const int MIN_WIDTH= 80; |
| 160 private static const int MIN_HEIGHT= 50; | |
| 129 | 161 |
| 150 | 162 |
| 129 | 163 /** |
| 164 * Availability checking cache. | |
| 165 */ | |
| 166 private static bool fgIsAvailable= false; | |
| 167 private static bool fgAvailabilityChecked= false; | |
| 168 | |
| 169 /** | |
| 170 * Cached scroll bar width and height | |
| 171 * @since 3.4 | |
| 172 */ | |
| 173 private static Point fgScrollBarSize; | |
| 150 | 174 |
| 129 | 175 /** The control's browser widget */ |
| 176 private Browser fBrowser; | |
| 177 /** Tells whether the browser has content */ | |
| 178 private bool fBrowserHasContent; | |
| 179 /** Text layout used to approximate size of content when rendered in browser */ | |
| 180 private TextLayout fTextLayout; | |
| 181 /** Bold text style */ | |
| 182 private TextStyle fBoldStyle; | |
| 183 | |
| 184 private BrowserInformationControlInput fInput; | |
| 185 | |
| 186 /** | |
| 187 * <code>true</code> iff the browser has completed loading of the last | |
| 188 * input set via {@link #setInformation(String)}. | |
| 189 * @since 3.4 | |
| 190 */ | |
| 191 private bool fCompleted= false; | |
| 192 | |
| 193 /** | |
| 194 * The listener to be notified when a delayed location changing event happened. | |
| 195 * @since 3.4 | |
| 196 */ | |
| 197 private IInputChangedListener fDelayedInputChangeListener; | |
| 198 | |
| 199 /** | |
| 200 * The listeners to be notified when the input changed. | |
| 201 * @since 3.4 | |
| 202 */ | |
| 203 private ListenerList/*<IInputChangedListener>*/ fInputChangeListeners= new ListenerList(ListenerList.IDENTITY); | |
| 204 | |
| 205 /** | |
| 206 * The symbolic name of the font used for size computations, or <code>null</code> to use dialog font. | |
| 207 * @since 3.4 | |
| 208 */ | |
| 146 | 209 private const String fSymbolicFontName; |
| 129 | 210 |
| 211 | |
| 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 resizable <code>true</code> if the control should be resizable | |
| 218 * @since 3.4 | |
| 219 */ | |
|
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220 public this(Shell parent, String symbolicFontName, bool resizable) { |
| 129 | 221 super(parent, resizable); |
| 222 fSymbolicFontName= symbolicFontName; | |
| 223 create(); | |
| 224 } | |
| 150 | 225 |
| 129 | 226 /** |
| 227 * Creates a browser information control with the given shell as parent. | |
| 150 | 228 * |
| 129 | 229 * @param parent the parent shell |
| 230 * @param symbolicFontName the symbolic name of the font used for size computations | |
| 231 * @param statusFieldText the text to be used in the optional status field | |
| 232 * or <code>null</code> if the status field should be hidden | |
| 233 * @since 3.4 | |
| 234 */ | |
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235 public this(Shell parent, String symbolicFontName, String statusFieldText) { |
| 129 | 236 super(parent, statusFieldText); |
| 237 fSymbolicFontName= symbolicFontName; | |
| 238 create(); | |
| 239 } | |
| 150 | 240 |
| 129 | 241 /** |
| 242 * Creates a browser information control with the given shell as parent. | |
| 150 | 243 * |
| 129 | 244 * @param parent the parent shell |
| 245 * @param symbolicFontName the symbolic name of the font used for size computations | |
| 246 * @param toolBarManager the manager or <code>null</code> if toolbar is not desired | |
| 247 * @since 3.4 | |
| 248 */ | |
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249 public this(Shell parent, String symbolicFontName, ToolBarManager toolBarManager) { |
| 129 | 250 super(parent, toolBarManager); |
| 251 fSymbolicFontName= symbolicFontName; | |
| 252 create(); | |
| 253 } | |
| 150 | 254 |
| 129 | 255 /* |
| 256 * @see dwtx.jface.text.AbstractInformationControl#createContent(dwt.widgets.Composite) | |
| 257 */ | |
| 258 protected void createContent(Composite parent) { | |
| 259 fBrowser= new Browser(parent, DWT.NONE); | |
| 150 | 260 |
| 129 | 261 Display display= getShell().getDisplay(); |
| 262 fBrowser.setForeground(display.getSystemColor(DWT.COLOR_INFO_FOREGROUND)); | |
| 263 fBrowser.setBackground(display.getSystemColor(DWT.COLOR_INFO_BACKGROUND)); | |
| 135 | 264 fBrowser.addKeyListener(new class() KeyListener { |
| 129 | 265 |
| 266 public void keyPressed(KeyEvent e) { | |
| 267 if (e.character is 0x1B) // ESC | |
| 268 getShell().dispose(); // XXX: Just hide? Would avoid constant recreations. | |
| 269 } | |
| 270 | |
| 271 public void keyReleased(KeyEvent e) {} | |
| 272 }); | |
| 273 | |
| 135 | 274 fBrowser.addProgressListener(new class() ProgressAdapter { |
| 129 | 275 public void completed(ProgressEvent event) { |
| 276 fCompleted= true; | |
| 277 } | |
| 278 }); | |
| 150 | 279 |
| 129 | 280 // Replace browser's built-in context menu with none |
| 281 fBrowser.setMenu(new Menu(getShell(), DWT.NONE)); | |
| 150 | 282 |
| 129 | 283 createTextLayout(); |
| 284 } | |
| 285 | |
| 286 /** | |
| 287 * {@inheritDoc} | |
| 288 * @deprecated use {@link #setInput(Object)} | |
| 289 */ | |
| 158 | 290 public void setInformation(String content) { |
| 291 setInput(new class(null,content) BrowserInformationControlInput { | |
| 292 String content_; | |
| 293 this(BrowserInformationControlInput input, String a){ | |
| 294 super(input); | |
| 295 content_=a; | |
| 296 } | |
| 129 | 297 public String getHtml() { |
| 158 | 298 return content_; |
| 129 | 299 } |
| 300 | |
| 301 public String getInputName() { | |
| 302 return ""; //$NON-NLS-1$ | |
| 303 } | |
| 304 | |
| 305 public Object getInputElement() { | |
| 158 | 306 return stringcast(content_); |
| 129 | 307 } |
| 308 }); | |
| 309 } | |
| 150 | 310 |
| 129 | 311 /** |
| 312 * {@inheritDoc} This control can handle {@link String} and | |
| 313 * {@link BrowserInformationControlInput}. | |
| 314 */ | |
| 315 public void setInput(Object input) { | |
| 150 | 316 Assert.isLegal(input is null || cast(String)input || cast(BrowserInformationControlInput)input ); |
| 129 | 317 |
| 138 | 318 if ( cast(String)input ) { |
| 134 | 319 setInformation(cast(String)input); |
| 129 | 320 return; |
| 321 } | |
| 322 | |
| 134 | 323 fInput= cast(BrowserInformationControlInput)input; |
| 150 | 324 |
| 129 | 325 String content= null; |
| 326 if (fInput !is null) | |
| 327 content= fInput.getHtml(); | |
| 150 | 328 |
| 129 | 329 fBrowserHasContent= content !is null && content.length() > 0; |
| 330 | |
| 331 if (!fBrowserHasContent) | |
| 332 content= "<html><body ></html>"; //$NON-NLS-1$ | |
| 333 | |
| 334 bool RTL= (getShell().getStyle() & DWT.RIGHT_TO_LEFT) !is 0; | |
| 335 bool resizable= isResizable(); | |
| 336 | |
| 337 // The default "overflow:auto" would not result in a predictable width for the client area | |
| 338 // and the re-wrapping would cause visual noise | |
| 339 String[] styles= null; | |
| 340 if (RTL && resizable) | |
| 150 | 341 styles= [ "direction:rtl;", "overflow:scroll;", "word-wrap:break-word;" ]; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| 129 | 342 else if (RTL && !resizable) |
| 150 | 343 styles= [ "direction:rtl;", "overflow:hidden;", "word-wrap:break-word;" ]; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| 129 | 344 else if (!resizable) |
| 345 //XXX: In IE, "word-wrap: break-word;" causes bogus wrapping even in non-broken words :-(see e.g. Javadoc of String). | |
| 346 // Re-check whether we really still need this now that the Javadoc Hover header already sets this style. | |
| 150 | 347 styles= [ "overflow:hidden;"/*, "word-wrap: break-word;"*/ ]; //$NON-NLS-1$ |
| 129 | 348 else |
| 150 | 349 styles= [ "overflow:scroll;" ]; //$NON-NLS-1$ |
| 350 | |
| 129 | 351 StringBuffer buffer= new StringBuffer(content); |
| 352 HTMLPrinter.insertStyles(buffer, styles); | |
| 353 content= buffer.toString(); | |
| 150 | 354 |
| 129 | 355 /* |
| 356 * XXX: Should add some JavaScript here that shows something like | |
| 357 * "(continued...)" or "..." at the end of the visible area when the page overflowed | |
| 358 * with "overflow:hidden;". | |
| 359 */ | |
| 150 | 360 |
| 129 | 361 fCompleted= false; |
| 362 fBrowser.setText(content); | |
| 150 | 363 |
| 129 | 364 Object[] listeners= fInputChangeListeners.getListeners(); |
| 365 for (int i= 0; i < listeners.length; i++) | |
| 134 | 366 (cast(IInputChangedListener)listeners[i]).inputChanged(fInput); |
| 129 | 367 } |
| 368 | |
| 369 /* | |
| 370 * @see IInformationControl#setVisible(bool) | |
| 371 */ | |
| 372 public void setVisible(bool visible) { | |
| 373 Shell shell= getShell(); | |
| 374 if (shell.isVisible() is visible) | |
| 375 return; | |
| 150 | 376 |
| 129 | 377 if (!visible) { |
| 378 super.setVisible(false); | |
| 379 setInput(null); | |
| 380 return; | |
| 381 } | |
| 150 | 382 |
| 129 | 383 /* |
| 384 * The Browser widget flickers when made visible while it is not completely loaded. | |
| 385 * The fix is to delay the call to setVisible until either loading is completed | |
| 386 * (see ProgressListener in constructor), or a timeout has been reached. | |
| 387 */ | |
| 388 final Display display= shell.getDisplay(); | |
| 150 | 389 |
| 129 | 390 // Make sure the display wakes from sleep after timeout: |
| 135 | 391 display.timerExec(100, new class() Runnable { |
| 129 | 392 public void run() { |
| 393 fCompleted= true; | |
| 394 } | |
| 395 }); | |
| 150 | 396 |
| 129 | 397 while (!fCompleted) { |
| 398 // Drive the event loop to process the events required to load the browser widget's contents: | |
| 399 if (!display.readAndDispatch()) { | |
| 400 display.sleep(); | |
| 401 } | |
| 402 } | |
| 150 | 403 |
| 129 | 404 shell= getShell(); |
| 405 if (shell is null || shell.isDisposed()) | |
| 406 return; | |
| 150 | 407 |
| 129 | 408 /* |
| 409 * Avoids flickering when replacing hovers, especially on Vista in ON_CLICK mode. | |
| 410 * Causes flickering on GTK. Carbon does not care. | |
| 411 */ | |
| 412 if ("win32".equals(DWT.getPlatform())) //$NON-NLS-1$ | |
| 413 shell.moveAbove(null); | |
| 150 | 414 |
| 129 | 415 super.setVisible(true); |
| 416 } | |
| 417 | |
| 418 /* | |
| 419 * @see dwtx.jface.text.AbstractInformationControl#setSize(int, int) | |
| 420 */ | |
| 421 public void setSize(int width, int height) { | |
| 422 fBrowser.setRedraw(false); // avoid flickering | |
| 423 try { | |
| 424 super.setSize(width, height); | |
| 425 } finally { | |
| 426 fBrowser.setRedraw(true); | |
| 427 } | |
| 428 } | |
| 429 | |
| 430 /** | |
| 431 * Creates and initializes the text layout used | |
| 432 * to compute the size hint. | |
| 150 | 433 * |
| 129 | 434 * @since 3.2 |
| 435 */ | |
| 436 private void createTextLayout() { | |
| 437 fTextLayout= new TextLayout(fBrowser.getDisplay()); | |
| 150 | 438 |
| 129 | 439 // Initialize fonts |
| 440 Font font= fSymbolicFontName is null ? JFaceResources.getDialogFont() : JFaceResources.getFont(fSymbolicFontName); | |
| 441 fTextLayout.setFont(font); | |
| 442 fTextLayout.setWidth(-1); | |
| 443 FontData[] fontData= font.getFontData(); | |
| 444 for (int i= 0; i < fontData.length; i++) | |
| 445 fontData[i].setStyle(DWT.BOLD); | |
| 446 font= new Font(getShell().getDisplay(), fontData); | |
| 447 fBoldStyle= new TextStyle(font, null, null); | |
| 150 | 448 |
| 129 | 449 // Compute and set tab width |
| 450 fTextLayout.setText(" "); //$NON-NLS-1$ | |
| 451 int tabWidth = fTextLayout.getBounds().width; | |
| 150 | 452 fTextLayout.setTabs([tabWidth]); |
| 129 | 453 |
| 454 fTextLayout.setText(""); //$NON-NLS-1$ | |
| 455 } | |
| 456 | |
| 457 /* | |
| 458 * @see IInformationControl#dispose() | |
| 459 */ | |
| 460 public void dispose() { | |
| 461 if (fTextLayout !is null) { | |
| 462 fTextLayout.dispose(); | |
| 463 fTextLayout= null; | |
| 464 } | |
| 465 if (fBoldStyle !is null) { | |
| 466 fBoldStyle.font.dispose(); | |
| 467 fBoldStyle= null; | |
| 468 } | |
| 469 fBrowser= null; | |
| 150 | 470 |
| 129 | 471 super.dispose(); |
| 472 } | |
| 473 | |
| 474 /* | |
| 475 * @see IInformationControl#computeSizeHint() | |
| 476 */ | |
| 477 public Point computeSizeHint() { | |
| 478 Point sizeConstraints= getSizeConstraints(); | |
| 479 Rectangle trim= computeTrim(); | |
| 480 int height= trim.height; | |
| 150 | 481 |
| 129 | 482 //FIXME: The HTML2TextReader does not render <p> like a browser. |
| 483 // Instead of inserting an empty line, it just adds a single line break. | |
| 484 // Furthermore, the indentation of <dl><dd> elements is too small (e.g with a long @see line) | |
| 485 TextPresentation presentation= new TextPresentation(); | |
| 486 HTML2TextReader reader= new HTML2TextReader(new StringReader(fInput.getHtml()), presentation); | |
| 487 String text; | |
| 488 try { | |
| 489 text= reader.getString(); | |
| 490 } catch (IOException e) { | |
| 491 text= ""; //$NON-NLS-1$ | |
| 492 } | |
| 493 | |
| 494 fTextLayout.setText(text); | |
| 495 fTextLayout.setWidth(sizeConstraints is null ? DWT.DEFAULT : sizeConstraints.x - trim.width); | |
| 496 Iterator iter= presentation.getAllStyleRangeIterator(); | |
| 497 while (iter.hasNext()) { | |
| 134 | 498 StyleRange sr= cast(StyleRange)iter.next(); |
| 129 | 499 if (sr.fontStyle is DWT.BOLD) |
| 500 fTextLayout.setStyle(fBoldStyle, sr.start, sr.start + sr.length - 1); | |
| 501 } | |
| 150 | 502 |
| 129 | 503 Rectangle bounds= fTextLayout.getBounds(); // does not return minimum width, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=217446 |
| 504 int lineCount= fTextLayout.getLineCount(); | |
| 505 int textWidth= 0; | |
| 506 for (int i= 0; i < lineCount; i++) { | |
| 507 Rectangle rect= fTextLayout.getLineBounds(i); | |
| 508 int lineWidth= rect.x + rect.width; | |
| 509 if (i is 0) | |
| 510 lineWidth += fInput.getLeadingImageWidth(); | |
| 511 textWidth= Math.max(textWidth, lineWidth); | |
| 512 } | |
| 513 bounds.width= textWidth; | |
| 514 fTextLayout.setText(""); //$NON-NLS-1$ | |
| 150 | 515 |
| 129 | 516 int minWidth= bounds.width; |
| 517 height= height + bounds.height; | |
| 150 | 518 |
| 129 | 519 // Add some air to accommodate for different browser renderings |
| 520 minWidth+= 15; | |
| 521 height+= 15; | |
| 522 | |
| 150 | 523 |
| 129 | 524 // Apply max size constraints |
| 525 if (sizeConstraints !is null) { | |
| 526 if (sizeConstraints.x !is DWT.DEFAULT) | |
| 527 minWidth= Math.min(sizeConstraints.x, minWidth + trim.width); | |
| 528 if (sizeConstraints.y !is DWT.DEFAULT) | |
| 529 height= Math.min(sizeConstraints.y, height); | |
| 530 } | |
| 531 | |
| 532 // Ensure minimal size | |
| 533 int width= Math.max(MIN_WIDTH, minWidth); | |
| 534 height= Math.max(MIN_HEIGHT, height); | |
| 150 | 535 |
| 129 | 536 return new Point(width, height); |
| 537 } | |
| 538 | |
| 539 /* | |
| 540 * @see dwtx.jface.text.IInformationControlExtension3#computeTrim() | |
| 541 */ | |
| 542 public Rectangle computeTrim() { | |
| 543 Rectangle trim= super.computeTrim(); | |
| 544 if (isResizable()) { | |
| 545 bool RTL= (getShell().getStyle() & DWT.RIGHT_TO_LEFT) !is 0; | |
| 150 | 546 if (RTL) { |
| 129 | 547 trim.x-= fgScrollBarSize.x; |
| 548 } | |
| 549 trim.width+= fgScrollBarSize.x; | |
| 550 trim.height+= fgScrollBarSize.y; | |
| 551 } | |
| 552 return trim; | |
| 553 } | |
| 150 | 554 |
| 129 | 555 /** |
| 556 * Adds the listener to the collection of listeners who will be | |
| 557 * notified when the current location has changed or is about to change. | |
| 150 | 558 * |
| 129 | 559 * @param listener the location listener |
| 560 * @since 3.4 | |
| 561 */ | |
| 562 public void addLocationListener(LocationListener listener) { | |
| 563 fBrowser.addLocationListener(listener); | |
| 564 } | |
| 565 | |
| 566 /* | |
| 567 * @see IInformationControl#setForegroundColor(Color) | |
| 568 */ | |
| 569 public void setForegroundColor(Color foreground) { | |
| 570 super.setForegroundColor(foreground); | |
| 571 fBrowser.setForeground(foreground); | |
| 572 } | |
| 573 | |
| 574 /* | |
| 575 * @see IInformationControl#setBackgroundColor(Color) | |
| 576 */ | |
| 577 public void setBackgroundColor(Color background) { | |
| 578 super.setBackgroundColor(background); | |
| 579 fBrowser.setBackground(background); | |
| 580 } | |
| 581 | |
| 582 /* | |
| 583 * @see IInformationControlExtension#hasContents() | |
| 584 */ | |
| 585 public bool hasContents() { | |
| 586 return fBrowserHasContent; | |
| 587 } | |
| 150 | 588 |
| 129 | 589 /** |
| 590 * Adds a listener for input changes to this input change provider. | |
| 591 * Has no effect if an identical listener is already registered. | |
| 150 | 592 * |
| 129 | 593 * @param inputChangeListener the listener to add |
| 594 * @since 3.4 | |
| 595 */ | |
| 596 public void addInputChangeListener(IInputChangedListener inputChangeListener) { | |
| 597 Assert.isNotNull(inputChangeListener); | |
| 598 fInputChangeListeners.add(inputChangeListener); | |
| 599 } | |
| 150 | 600 |
| 129 | 601 /** |
| 602 * Removes the given input change listener from this input change provider. | |
| 603 * Has no effect if an identical listener is not registered. | |
| 150 | 604 * |
| 129 | 605 * @param inputChangeListener the listener to remove |
| 606 * @since 3.4 | |
| 607 */ | |
| 608 public void removeInputChangeListener(IInputChangedListener inputChangeListener) { | |
| 609 fInputChangeListeners.remove(inputChangeListener); | |
| 610 } | |
| 150 | 611 |
| 129 | 612 /* |
| 613 * @see dwtx.jface.text.IDelayedInputChangeProvider#setDelayedInputChangeListener(dwtx.jface.text.IInputChangedListener) | |
| 614 * @since 3.4 | |
| 615 */ | |
| 616 public void setDelayedInputChangeListener(IInputChangedListener inputChangeListener) { | |
| 617 fDelayedInputChangeListener= inputChangeListener; | |
| 618 } | |
| 150 | 619 |
| 129 | 620 /** |
| 621 * Tells whether a delayed input change listener is registered. | |
| 150 | 622 * |
| 129 | 623 * @return <code>true</code> iff a delayed input change |
| 624 * listener is currently registered | |
| 625 * @since 3.4 | |
| 626 */ | |
| 627 public bool hasDelayedInputChangeListener() { | |
| 628 return fDelayedInputChangeListener !is null; | |
| 629 } | |
| 150 | 630 |
| 129 | 631 /** |
| 632 * Notifies listeners of a delayed input change. | |
| 150 | 633 * |
| 129 | 634 * @param newInput the new input, or <code>null</code> to request cancellation |
| 635 * @since 3.4 | |
| 636 */ | |
| 637 public void notifyDelayedInputChange(Object newInput) { | |
| 638 if (fDelayedInputChangeListener !is null) | |
| 639 fDelayedInputChangeListener.inputChanged(newInput); | |
| 640 } | |
| 150 | 641 |
| 129 | 642 /* |
| 643 * @see java.lang.Object#toString() | |
| 644 * @since 3.4 | |
| 645 */ | |
| 160 | 646 public override String toString() { |
| 129 | 647 String style= (getShell().getStyle() & DWT.RESIZE) is 0 ? "fixed" : "resizeable"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 648 return super.toString() + " - style: " + style; //$NON-NLS-1$ | |
| 649 } | |
| 650 | |
| 651 /** | |
| 652 * @return the current browser input or <code>null</code> | |
| 653 */ | |
| 654 public BrowserInformationControlInput getInput() { | |
| 655 return fInput; | |
| 656 } | |
| 150 | 657 |
| 129 | 658 /* |
| 659 * @see dwtx.jface.text.IInformationControlExtension5#computeSizeConstraints(int, int) | |
| 660 */ | |
| 661 public Point computeSizeConstraints(int widthInChars, int heightInChars) { | |
| 662 if (fSymbolicFontName is null) | |
| 663 return null; | |
| 150 | 664 |
| 129 | 665 GC gc= new GC(fBrowser); |
| 666 Font font= fSymbolicFontName is null ? JFaceResources.getDialogFont() : JFaceResources.getFont(fSymbolicFontName); | |
| 667 gc.setFont(font); | |
| 668 int width= gc.getFontMetrics().getAverageCharWidth(); | |
| 669 int height= gc.getFontMetrics().getHeight(); | |
| 670 gc.dispose(); | |
| 150 | 671 |
| 129 | 672 return new Point(widthInChars * width, heightInChars * height); |
| 673 } | |
| 674 | |
| 675 } | |
| 158 | 676 |
| 160 | 677 ++/ |