J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | package javax.swing.plaf.basic; |
| 26 | |
| 27 | import java.io.*; |
| 28 | import java.awt.*; |
| 29 | import java.net.URL; |
| 30 | |
| 31 | import javax.swing.*; |
| 32 | import javax.swing.text.*; |
| 33 | import javax.swing.text.html.*; |
| 34 | |
| 35 | import sun.swing.SwingUtilities2; |
| 36 | |
| 37 | /** |
| 38 | * Support for providing html views for the swing components. |
| 39 | * This translates a simple html string to a javax.swing.text.View |
| 40 | * implementation that can render the html and provide the necessary |
| 41 | * layout semantics. |
| 42 | * |
| 43 | * @author Timothy Prinzing |
| 44 | * @since 1.3 |
| 45 | */ |
| 46 | public class BasicHTML { |
| 47 | |
| 48 | /** |
| 49 | * Create an html renderer for the given component and |
| 50 | * string of html. |
| 51 | */ |
| 52 | public static View createHTMLView(JComponent c, String html) { |
| 53 | BasicEditorKit kit = getFactory(); |
| 54 | Document doc = kit.createDefaultDocument(c.getFont(), |
| 55 | c.getForeground()); |
| 56 | Object base = c.getClientProperty(documentBaseKey); |
| 57 | if (base instanceof URL) { |
| 58 | ((HTMLDocument)doc).setBase((URL)base); |
| 59 | } |
| 60 | Reader r = new StringReader(html); |
| 61 | try { |
| 62 | kit.read(r, doc, 0); |
| 63 | } catch (Throwable e) { |
| 64 | } |
| 65 | ViewFactory f = kit.getViewFactory(); |
| 66 | View hview = f.create(doc.getDefaultRootElement()); |
| 67 | View v = new Renderer(c, f, hview); |
| 68 | return v; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Returns the baseline for the html renderer. |
| 73 | * |
| 74 | * @param view the View to get the baseline for |
| 75 | * @param w the width to get the baseline for |
| 76 | * @param h the height to get the baseline for |
| 77 | * @throws IllegalArgumentException if width or height is < 0 |
| 78 | * @return baseline or a value < 0 indicating there is no reasonable |
| 79 | * baseline |
| 80 | * @see java.awt.FontMetrics |
| 81 | * @see javax.swing.JComponent#getBaseline(int,int) |
| 82 | * @since 1.6 |
| 83 | */ |
| 84 | public static int getHTMLBaseline(View view, int w, int h) { |
| 85 | if (w < 0 || h < 0) { |
| 86 | throw new IllegalArgumentException( |
| 87 | "Width and height must be >= 0"); |
| 88 | } |
| 89 | if (view instanceof Renderer) { |
| 90 | return getBaseline(view.getView(0), w, h); |
| 91 | } |
| 92 | return -1; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Gets the baseline for the specified component. This digs out |
| 97 | * the View client property, and if non-null the baseline is calculated |
| 98 | * from it. Otherwise the baseline is the value <code>y + ascent</code>. |
| 99 | */ |
| 100 | static int getBaseline(JComponent c, int y, int ascent, |
| 101 | int w, int h) { |
| 102 | View view = (View)c.getClientProperty(BasicHTML.propertyKey); |
| 103 | if (view != null) { |
| 104 | int baseline = getHTMLBaseline(view, w, h); |
| 105 | if (baseline < 0) { |
| 106 | return baseline; |
| 107 | } |
| 108 | return y + baseline; |
| 109 | } |
| 110 | return y + ascent; |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * Gets the baseline for the specified View. |
| 115 | */ |
| 116 | static int getBaseline(View view, int w, int h) { |
| 117 | if (hasParagraph(view)) { |
| 118 | view.setSize(w, h); |
| 119 | return getBaseline(view, new Rectangle(0, 0, w, h)); |
| 120 | } |
| 121 | return -1; |
| 122 | } |
| 123 | |
| 124 | private static int getBaseline(View view, Shape bounds) { |
| 125 | if (view.getViewCount() == 0) { |
| 126 | return -1; |
| 127 | } |
| 128 | AttributeSet attributes = view.getElement().getAttributes(); |
| 129 | Object name = null; |
| 130 | if (attributes != null) { |
| 131 | name = attributes.getAttribute(StyleConstants.NameAttribute); |
| 132 | } |
| 133 | int index = 0; |
| 134 | if (name == HTML.Tag.HTML && view.getViewCount() > 1) { |
| 135 | // For html on widgets the header is not visible, skip it. |
| 136 | index++; |
| 137 | } |
| 138 | bounds = view.getChildAllocation(index, bounds); |
| 139 | if (bounds == null) { |
| 140 | return -1; |
| 141 | } |
| 142 | View child = view.getView(index); |
| 143 | if (view instanceof javax.swing.text.ParagraphView) { |
| 144 | Rectangle rect; |
| 145 | if (bounds instanceof Rectangle) { |
| 146 | rect = (Rectangle)bounds; |
| 147 | } |
| 148 | else { |
| 149 | rect = bounds.getBounds(); |
| 150 | } |
| 151 | return rect.y + (int)(rect.height * |
| 152 | child.getAlignment(View.Y_AXIS)); |
| 153 | } |
| 154 | return getBaseline(child, bounds); |
| 155 | } |
| 156 | |
| 157 | private static boolean hasParagraph(View view) { |
| 158 | if (view instanceof javax.swing.text.ParagraphView) { |
| 159 | return true; |
| 160 | } |
| 161 | if (view.getViewCount() == 0) { |
| 162 | return false; |
| 163 | } |
| 164 | AttributeSet attributes = view.getElement().getAttributes(); |
| 165 | Object name = null; |
| 166 | if (attributes != null) { |
| 167 | name = attributes.getAttribute(StyleConstants.NameAttribute); |
| 168 | } |
| 169 | int index = 0; |
| 170 | if (name == HTML.Tag.HTML && view.getViewCount() > 1) { |
| 171 | // For html on widgets the header is not visible, skip it. |
| 172 | index = 1; |
| 173 | } |
| 174 | return hasParagraph(view.getView(index)); |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Check the given string to see if it should trigger the |
| 179 | * html rendering logic in a non-text component that supports |
| 180 | * html rendering. |
| 181 | */ |
| 182 | public static boolean isHTMLString(String s) { |
| 183 | if (s != null) { |
| 184 | if ((s.length() >= 6) && (s.charAt(0) == '<') && (s.charAt(5) == '>')) { |
| 185 | String tag = s.substring(1,5); |
| 186 | return tag.equalsIgnoreCase(propertyKey); |
| 187 | } |
| 188 | } |
| 189 | return false; |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * Stash the HTML render for the given text into the client |
| 194 | * properties of the given JComponent. If the given text is |
| 195 | * <em>NOT HTML</em> the property will be cleared of any |
| 196 | * renderer. |
| 197 | * <p> |
| 198 | * This method is useful for ComponentUI implementations |
| 199 | * that are static (i.e. shared) and get their state |
| 200 | * entirely from the JComponent. |
| 201 | */ |
| 202 | public static void updateRenderer(JComponent c, String text) { |
| 203 | View value = null; |
| 204 | View oldValue = (View)c.getClientProperty(BasicHTML.propertyKey); |
| 205 | Boolean htmlDisabled = (Boolean) c.getClientProperty(htmlDisable); |
| 206 | if (htmlDisabled != Boolean.TRUE && BasicHTML.isHTMLString(text)) { |
| 207 | value = BasicHTML.createHTMLView(c, text); |
| 208 | } |
| 209 | if (value != oldValue && oldValue != null) { |
| 210 | for (int i = 0; i < oldValue.getViewCount(); i++) { |
| 211 | oldValue.getView(i).setParent(null); |
| 212 | } |
| 213 | } |
| 214 | c.putClientProperty(BasicHTML.propertyKey, value); |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * If this client property of a JComponent is set to Boolean.TRUE |
| 219 | * the component's 'text' property is never treated as HTML. |
| 220 | */ |
| 221 | private static final String htmlDisable = "html.disable"; |
| 222 | |
| 223 | /** |
| 224 | * Key to use for the html renderer when stored as a |
| 225 | * client property of a JComponent. |
| 226 | */ |
| 227 | public static final String propertyKey = "html"; |
| 228 | |
| 229 | /** |
| 230 | * Key stored as a client property to indicate the base that relative |
| 231 | * references are resolved against. For example, lets say you keep |
| 232 | * your images in the directory resources relative to the code path, |
| 233 | * you would use the following the set the base: |
| 234 | * <pre> |
| 235 | * jComponent.putClientProperty(documentBaseKey, |
| 236 | * xxx.class.getResource("resources/")); |
| 237 | * </pre> |
| 238 | */ |
| 239 | public static final String documentBaseKey = "html.base"; |
| 240 | |
| 241 | static BasicEditorKit getFactory() { |
| 242 | if (basicHTMLFactory == null) { |
| 243 | basicHTMLViewFactory = new BasicHTMLViewFactory(); |
| 244 | basicHTMLFactory = new BasicEditorKit(); |
| 245 | } |
| 246 | return basicHTMLFactory; |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * The source of the html renderers |
| 251 | */ |
| 252 | private static BasicEditorKit basicHTMLFactory; |
| 253 | |
| 254 | /** |
| 255 | * Creates the Views that visually represent the model. |
| 256 | */ |
| 257 | private static ViewFactory basicHTMLViewFactory; |
| 258 | |
| 259 | /** |
| 260 | * Overrides to the default stylesheet. Should consider |
| 261 | * just creating a completely fresh stylesheet. |
| 262 | */ |
| 263 | private static final String styleChanges = |
| 264 | "p { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0 }" + |
| 265 | "body { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0 }"; |
| 266 | |
| 267 | /** |
| 268 | * The views produced for the ComponentUI implementations aren't |
| 269 | * going to be edited and don't need full html support. This kit |
| 270 | * alters the HTMLEditorKit to try and trim things down a bit. |
| 271 | * It does the following: |
| 272 | * <ul> |
| 273 | * <li>It doesn't produce Views for things like comments, |
| 274 | * head, title, unknown tags, etc. |
| 275 | * <li>It installs a different set of css settings from the default |
| 276 | * provided by HTMLEditorKit. |
| 277 | * </ul> |
| 278 | */ |
| 279 | static class BasicEditorKit extends HTMLEditorKit { |
| 280 | /** Shared base style for all documents created by us use. */ |
| 281 | private static StyleSheet defaultStyles; |
| 282 | |
| 283 | /** |
| 284 | * Overriden to return our own slimmed down style sheet. |
| 285 | */ |
| 286 | public StyleSheet getStyleSheet() { |
| 287 | if (defaultStyles == null) { |
| 288 | defaultStyles = new StyleSheet(); |
| 289 | StringReader r = new StringReader(styleChanges); |
| 290 | try { |
| 291 | defaultStyles.loadRules(r, null); |
| 292 | } catch (Throwable e) { |
| 293 | // don't want to die in static initialization... |
| 294 | // just display things wrong. |
| 295 | } |
| 296 | r.close(); |
| 297 | defaultStyles.addStyleSheet(super.getStyleSheet()); |
| 298 | } |
| 299 | return defaultStyles; |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * Sets the async policy to flush everything in one chunk, and |
| 304 | * to not display unknown tags. |
| 305 | */ |
| 306 | public Document createDefaultDocument(Font defaultFont, |
| 307 | Color foreground) { |
| 308 | StyleSheet styles = getStyleSheet(); |
| 309 | StyleSheet ss = new StyleSheet(); |
| 310 | ss.addStyleSheet(styles); |
| 311 | BasicDocument doc = new BasicDocument(ss, defaultFont, foreground); |
| 312 | doc.setAsynchronousLoadPriority(Integer.MAX_VALUE); |
| 313 | doc.setPreservesUnknownTags(false); |
| 314 | return doc; |
| 315 | } |
| 316 | |
| 317 | /** |
| 318 | * Returns the ViewFactory that is used to make sure the Views don't |
| 319 | * load in the background. |
| 320 | */ |
| 321 | public ViewFactory getViewFactory() { |
| 322 | return basicHTMLViewFactory; |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | |
| 327 | /** |
| 328 | * BasicHTMLViewFactory extends HTMLFactory to force images to be loaded |
| 329 | * synchronously. |
| 330 | */ |
| 331 | static class BasicHTMLViewFactory extends HTMLEditorKit.HTMLFactory { |
| 332 | public View create(Element elem) { |
| 333 | View view = super.create(elem); |
| 334 | |
| 335 | if (view instanceof ImageView) { |
| 336 | ((ImageView)view).setLoadsSynchronously(true); |
| 337 | } |
| 338 | return view; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | |
| 343 | /** |
| 344 | * The subclass of HTMLDocument that is used as the model. getForeground |
| 345 | * is overridden to return the foreground property from the Component this |
| 346 | * was created for. |
| 347 | */ |
| 348 | static class BasicDocument extends HTMLDocument { |
| 349 | /** The host, that is where we are rendering. */ |
| 350 | // private JComponent host; |
| 351 | |
| 352 | BasicDocument(StyleSheet s, Font defaultFont, Color foreground) { |
| 353 | super(s); |
| 354 | setPreservesUnknownTags(false); |
| 355 | setFontAndColor(defaultFont, foreground); |
| 356 | } |
| 357 | |
| 358 | /** |
| 359 | * Sets the default font and default color. These are set by |
| 360 | * adding a rule for the body that specifies the font and color. |
| 361 | * This allows the html to override these should it wish to have |
| 362 | * a custom font or color. |
| 363 | */ |
| 364 | private void setFontAndColor(Font font, Color fg) { |
| 365 | getStyleSheet().addRule(sun.swing.SwingUtilities2. |
| 366 | displayPropertiesToCSS(font,fg)); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | |
| 371 | /** |
| 372 | * Root text view that acts as an HTML renderer. |
| 373 | */ |
| 374 | static class Renderer extends View { |
| 375 | |
| 376 | Renderer(JComponent c, ViewFactory f, View v) { |
| 377 | super(null); |
| 378 | host = c; |
| 379 | factory = f; |
| 380 | view = v; |
| 381 | view.setParent(this); |
| 382 | // initially layout to the preferred size |
| 383 | setSize(view.getPreferredSpan(X_AXIS), view.getPreferredSpan(Y_AXIS)); |
| 384 | } |
| 385 | |
| 386 | /** |
| 387 | * Fetches the attributes to use when rendering. At the root |
| 388 | * level there are no attributes. If an attribute is resolved |
| 389 | * up the view hierarchy this is the end of the line. |
| 390 | */ |
| 391 | public AttributeSet getAttributes() { |
| 392 | return null; |
| 393 | } |
| 394 | |
| 395 | /** |
| 396 | * Determines the preferred span for this view along an axis. |
| 397 | * |
| 398 | * @param axis may be either X_AXIS or Y_AXIS |
| 399 | * @return the span the view would like to be rendered into. |
| 400 | * Typically the view is told to render into the span |
| 401 | * that is returned, although there is no guarantee. |
| 402 | * The parent may choose to resize or break the view. |
| 403 | */ |
| 404 | public float getPreferredSpan(int axis) { |
| 405 | if (axis == X_AXIS) { |
| 406 | // width currently laid out to |
| 407 | return width; |
| 408 | } |
| 409 | return view.getPreferredSpan(axis); |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * Determines the minimum span for this view along an axis. |
| 414 | * |
| 415 | * @param axis may be either X_AXIS or Y_AXIS |
| 416 | * @return the span the view would like to be rendered into. |
| 417 | * Typically the view is told to render into the span |
| 418 | * that is returned, although there is no guarantee. |
| 419 | * The parent may choose to resize or break the view. |
| 420 | */ |
| 421 | public float getMinimumSpan(int axis) { |
| 422 | return view.getMinimumSpan(axis); |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * Determines the maximum span for this view along an axis. |
| 427 | * |
| 428 | * @param axis may be either X_AXIS or Y_AXIS |
| 429 | * @return the span the view would like to be rendered into. |
| 430 | * Typically the view is told to render into the span |
| 431 | * that is returned, although there is no guarantee. |
| 432 | * The parent may choose to resize or break the view. |
| 433 | */ |
| 434 | public float getMaximumSpan(int axis) { |
| 435 | return Integer.MAX_VALUE; |
| 436 | } |
| 437 | |
| 438 | /** |
| 439 | * Specifies that a preference has changed. |
| 440 | * Child views can call this on the parent to indicate that |
| 441 | * the preference has changed. The root view routes this to |
| 442 | * invalidate on the hosting component. |
| 443 | * <p> |
| 444 | * This can be called on a different thread from the |
| 445 | * event dispatching thread and is basically unsafe to |
| 446 | * propagate into the component. To make this safe, |
| 447 | * the operation is transferred over to the event dispatching |
| 448 | * thread for completion. It is a design goal that all view |
| 449 | * methods be safe to call without concern for concurrency, |
| 450 | * and this behavior helps make that true. |
| 451 | * |
| 452 | * @param child the child view |
| 453 | * @param width true if the width preference has changed |
| 454 | * @param height true if the height preference has changed |
| 455 | */ |
| 456 | public void preferenceChanged(View child, boolean width, boolean height) { |
| 457 | host.revalidate(); |
| 458 | host.repaint(); |
| 459 | } |
| 460 | |
| 461 | /** |
| 462 | * Determines the desired alignment for this view along an axis. |
| 463 | * |
| 464 | * @param axis may be either X_AXIS or Y_AXIS |
| 465 | * @return the desired alignment, where 0.0 indicates the origin |
| 466 | * and 1.0 the full span away from the origin |
| 467 | */ |
| 468 | public float getAlignment(int axis) { |
| 469 | return view.getAlignment(axis); |
| 470 | } |
| 471 | |
| 472 | /** |
| 473 | * Renders the view. |
| 474 | * |
| 475 | * @param g the graphics context |
| 476 | * @param allocation the region to render into |
| 477 | */ |
| 478 | public void paint(Graphics g, Shape allocation) { |
| 479 | Rectangle alloc = allocation.getBounds(); |
| 480 | view.setSize(alloc.width, alloc.height); |
| 481 | view.paint(g, allocation); |
| 482 | } |
| 483 | |
| 484 | /** |
| 485 | * Sets the view parent. |
| 486 | * |
| 487 | * @param parent the parent view |
| 488 | */ |
| 489 | public void setParent(View parent) { |
| 490 | throw new Error("Can't set parent on root view"); |
| 491 | } |
| 492 | |
| 493 | /** |
| 494 | * Returns the number of views in this view. Since |
| 495 | * this view simply wraps the root of the view hierarchy |
| 496 | * it has exactly one child. |
| 497 | * |
| 498 | * @return the number of views |
| 499 | * @see #getView |
| 500 | */ |
| 501 | public int getViewCount() { |
| 502 | return 1; |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * Gets the n-th view in this container. |
| 507 | * |
| 508 | * @param n the number of the view to get |
| 509 | * @return the view |
| 510 | */ |
| 511 | public View getView(int n) { |
| 512 | return view; |
| 513 | } |
| 514 | |
| 515 | /** |
| 516 | * Provides a mapping from the document model coordinate space |
| 517 | * to the coordinate space of the view mapped to it. |
| 518 | * |
| 519 | * @param pos the position to convert |
| 520 | * @param a the allocated region to render into |
| 521 | * @return the bounding box of the given position |
| 522 | */ |
| 523 | public Shape modelToView(int pos, Shape a, Position.Bias b) throws BadLocationException { |
| 524 | return view.modelToView(pos, a, b); |
| 525 | } |
| 526 | |
| 527 | /** |
| 528 | * Provides a mapping from the document model coordinate space |
| 529 | * to the coordinate space of the view mapped to it. |
| 530 | * |
| 531 | * @param p0 the position to convert >= 0 |
| 532 | * @param b0 the bias toward the previous character or the |
| 533 | * next character represented by p0, in case the |
| 534 | * position is a boundary of two views. |
| 535 | * @param p1 the position to convert >= 0 |
| 536 | * @param b1 the bias toward the previous character or the |
| 537 | * next character represented by p1, in case the |
| 538 | * position is a boundary of two views. |
| 539 | * @param a the allocated region to render into |
| 540 | * @return the bounding box of the given position is returned |
| 541 | * @exception BadLocationException if the given position does |
| 542 | * not represent a valid location in the associated document |
| 543 | * @exception IllegalArgumentException for an invalid bias argument |
| 544 | * @see View#viewToModel |
| 545 | */ |
| 546 | public Shape modelToView(int p0, Position.Bias b0, int p1, |
| 547 | Position.Bias b1, Shape a) throws BadLocationException { |
| 548 | return view.modelToView(p0, b0, p1, b1, a); |
| 549 | } |
| 550 | |
| 551 | /** |
| 552 | * Provides a mapping from the view coordinate space to the logical |
| 553 | * coordinate space of the model. |
| 554 | * |
| 555 | * @param x x coordinate of the view location to convert |
| 556 | * @param y y coordinate of the view location to convert |
| 557 | * @param a the allocated region to render into |
| 558 | * @return the location within the model that best represents the |
| 559 | * given point in the view |
| 560 | */ |
| 561 | public int viewToModel(float x, float y, Shape a, Position.Bias[] bias) { |
| 562 | return view.viewToModel(x, y, a, bias); |
| 563 | } |
| 564 | |
| 565 | /** |
| 566 | * Returns the document model underlying the view. |
| 567 | * |
| 568 | * @return the model |
| 569 | */ |
| 570 | public Document getDocument() { |
| 571 | return view.getDocument(); |
| 572 | } |
| 573 | |
| 574 | /** |
| 575 | * Returns the starting offset into the model for this view. |
| 576 | * |
| 577 | * @return the starting offset |
| 578 | */ |
| 579 | public int getStartOffset() { |
| 580 | return view.getStartOffset(); |
| 581 | } |
| 582 | |
| 583 | /** |
| 584 | * Returns the ending offset into the model for this view. |
| 585 | * |
| 586 | * @return the ending offset |
| 587 | */ |
| 588 | public int getEndOffset() { |
| 589 | return view.getEndOffset(); |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Gets the element that this view is mapped to. |
| 594 | * |
| 595 | * @return the view |
| 596 | */ |
| 597 | public Element getElement() { |
| 598 | return view.getElement(); |
| 599 | } |
| 600 | |
| 601 | /** |
| 602 | * Sets the view size. |
| 603 | * |
| 604 | * @param width the width |
| 605 | * @param height the height |
| 606 | */ |
| 607 | public void setSize(float width, float height) { |
| 608 | this.width = (int) width; |
| 609 | view.setSize(width, height); |
| 610 | } |
| 611 | |
| 612 | /** |
| 613 | * Fetches the container hosting the view. This is useful for |
| 614 | * things like scheduling a repaint, finding out the host |
| 615 | * components font, etc. The default implementation |
| 616 | * of this is to forward the query to the parent view. |
| 617 | * |
| 618 | * @return the container |
| 619 | */ |
| 620 | public Container getContainer() { |
| 621 | return host; |
| 622 | } |
| 623 | |
| 624 | /** |
| 625 | * Fetches the factory to be used for building the |
| 626 | * various view fragments that make up the view that |
| 627 | * represents the model. This is what determines |
| 628 | * how the model will be represented. This is implemented |
| 629 | * to fetch the factory provided by the associated |
| 630 | * EditorKit. |
| 631 | * |
| 632 | * @return the factory |
| 633 | */ |
| 634 | public ViewFactory getViewFactory() { |
| 635 | return factory; |
| 636 | } |
| 637 | |
| 638 | private int width; |
| 639 | private View view; |
| 640 | private ViewFactory factory; |
| 641 | private JComponent host; |
| 642 | |
| 643 | } |
| 644 | } |