| 1 | /* |
| 2 | * jDTAUS Core Utilities |
| 3 | * Copyright (C) 2005 Christian Schulte |
| 4 | * <cs@schulte.it> |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | * |
| 20 | */ |
| 21 | package org.jdtaus.core.text.util; |
| 22 | |
| 23 | import java.awt.Component; |
| 24 | import java.awt.Dimension; |
| 25 | import java.awt.GraphicsEnvironment; |
| 26 | import java.awt.GridBagConstraints; |
| 27 | import java.awt.GridBagLayout; |
| 28 | import java.awt.HeadlessException; |
| 29 | import java.awt.Insets; |
| 30 | import java.beans.PropertyChangeEvent; |
| 31 | import java.beans.PropertyChangeListener; |
| 32 | import java.lang.reflect.InvocationTargetException; |
| 33 | import java.util.Locale; |
| 34 | import javax.swing.JDialog; |
| 35 | import javax.swing.JLabel; |
| 36 | import javax.swing.JOptionPane; |
| 37 | import javax.swing.JPanel; |
| 38 | import javax.swing.SwingConstants; |
| 39 | import javax.swing.SwingUtilities; |
| 40 | import javax.swing.plaf.basic.BasicHTML; |
| 41 | import javax.swing.text.View; |
| 42 | import org.jdtaus.core.container.ContainerFactory; |
| 43 | import org.jdtaus.core.logging.spi.Logger; |
| 44 | import org.jdtaus.core.text.MessageEvent; |
| 45 | import org.jdtaus.core.text.MessageListener; |
| 46 | |
| 47 | /** |
| 48 | * {@code MessageListener} displaying messages using Swing's {@code JOptionPane}. |
| 49 | * <p>This implementation displays a dialog for each {@code MessageEvent} this {@code MessageListener} is notified |
| 50 | * about. Since a {@code MessageEvent} can hold multiple messages a maximum number of messages to display per event |
| 51 | * can be specified by property {@code maximumMessages} (defaults to 25).</p> |
| 52 | * |
| 53 | * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> |
| 54 | * @version $JDTAUS: SwingMessagePane.java 8786 2012-12-03 02:09:05Z schulte $ |
| 55 | * |
| 56 | * @see #onMessage(MessageEvent) |
| 57 | */ |
| 58 | public final class SwingMessagePane implements MessageListener |
| 59 | { |
| 60 | //--Dependencies------------------------------------------------------------ |
| 61 | |
| 62 | // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:jdtausDependencies |
| 63 | // This section is managed by jdtaus-container-mojo. |
| 64 | |
| 65 | /** |
| 66 | * Gets the configured <code>Logger</code> implementation. |
| 67 | * |
| 68 | * @return The configured <code>Logger</code> implementation. |
| 69 | */ |
| 70 | private Logger getLogger() |
| 71 | { |
| 72 | return (Logger) ContainerFactory.getContainer(). |
| 73 | getDependency( this, "Logger" ); |
| 74 | |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Gets the configured <code>Locale</code> implementation. |
| 79 | * |
| 80 | * @return The configured <code>Locale</code> implementation. |
| 81 | */ |
| 82 | private Locale getLocale() |
| 83 | { |
| 84 | return (Locale) ContainerFactory.getContainer(). |
| 85 | getDependency( this, "Locale" ); |
| 86 | |
| 87 | } |
| 88 | |
| 89 | // </editor-fold>//GEN-END:jdtausDependencies |
| 90 | |
| 91 | //------------------------------------------------------------Dependencies-- |
| 92 | //--Properties-------------------------------------------------------------- |
| 93 | |
| 94 | // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:jdtausProperties |
| 95 | // This section is managed by jdtaus-container-mojo. |
| 96 | |
| 97 | /** |
| 98 | * Gets the value of property <code>defaultResizable</code>. |
| 99 | * |
| 100 | * @return Default resizability of the message pane. |
| 101 | */ |
| 102 | private java.lang.Boolean isDefaultResizable() |
| 103 | { |
| 104 | return (java.lang.Boolean) ContainerFactory.getContainer(). |
| 105 | getProperty( this, "defaultResizable" ); |
| 106 | |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Gets the value of property <code>defaultMaximumMessages</code>. |
| 111 | * |
| 112 | * @return Default maximum number of messages displayed per event. |
| 113 | */ |
| 114 | private java.lang.Integer getDefaultMaximumMessages() |
| 115 | { |
| 116 | return (java.lang.Integer) ContainerFactory.getContainer(). |
| 117 | getProperty( this, "defaultMaximumMessages" ); |
| 118 | |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Gets the value of property <code>defaultColumns</code>. |
| 123 | * |
| 124 | * @return Default number of columns the preferred width of the message pane is computed with. |
| 125 | */ |
| 126 | private java.lang.Integer getDefaultColumns() |
| 127 | { |
| 128 | return (java.lang.Integer) ContainerFactory.getContainer(). |
| 129 | getProperty( this, "defaultColumns" ); |
| 130 | |
| 131 | } |
| 132 | |
| 133 | // </editor-fold>//GEN-END:jdtausProperties |
| 134 | |
| 135 | //--------------------------------------------------------------Properties-- |
| 136 | //--MessageListener--------------------------------------------------------- |
| 137 | |
| 138 | /** |
| 139 | * {@inheritDoc} |
| 140 | * <p>This method uses Swing's {@link JOptionPane} to display messages given by the event. It will block the event |
| 141 | * dispatch thread until the user confirms the message pane.</p> |
| 142 | * |
| 143 | * @param event The event holding messages. |
| 144 | */ |
| 145 | public void onMessage( final MessageEvent event ) |
| 146 | { |
| 147 | if ( event != null ) |
| 148 | { |
| 149 | try |
| 150 | { |
| 151 | final Runnable r = new Runnable() |
| 152 | { |
| 153 | |
| 154 | public void run() |
| 155 | { |
| 156 | final JPanel panel = new JPanel(); |
| 157 | panel.setLayout( new GridBagLayout() ); |
| 158 | |
| 159 | for ( int i = 0, s0 = event.getMessages().length; i < s0 && i < getMaximumMessages(); i++ ) |
| 160 | { |
| 161 | String text = event.getMessages()[i].getText( getLocale() ); |
| 162 | |
| 163 | if ( !BasicHTML.isHTMLString( text ) ) |
| 164 | { |
| 165 | text = "<html>" + HtmlEntities.escapeHtml( text ) + "</html>"; |
| 166 | } |
| 167 | |
| 168 | final JLabel label = new HtmlLabel( getColumns() ); |
| 169 | label.setText( text ); |
| 170 | |
| 171 | final GridBagConstraints c = new GridBagConstraints(); |
| 172 | c.anchor = GridBagConstraints.NORTHWEST; |
| 173 | c.fill = GridBagConstraints.BOTH; |
| 174 | c.gridheight = 1; |
| 175 | c.gridwidth = 1; |
| 176 | c.gridx = 0; |
| 177 | c.gridy = i; |
| 178 | c.weightx = 1.0D; |
| 179 | |
| 180 | panel.add( label, c ); |
| 181 | |
| 182 | if ( !( i + 1 < s0 && i + 1 < getMaximumMessages() ) ) |
| 183 | { |
| 184 | final JPanel p = new JPanel(); |
| 185 | c.anchor = GridBagConstraints.SOUTH; |
| 186 | c.weighty = 1.0D; |
| 187 | c.gridy = i + 1; |
| 188 | panel.add( p, c ); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | JOptionPane optionPane = null; |
| 193 | JDialog dialog = null; |
| 194 | |
| 195 | switch ( event.getType() ) |
| 196 | { |
| 197 | case MessageEvent.INFORMATION: |
| 198 | optionPane = new JOptionPane(); |
| 199 | optionPane.setMessage( panel ); |
| 200 | optionPane.setMessageType( JOptionPane.INFORMATION_MESSAGE ); |
| 201 | dialog = optionPane.createDialog( getParent(), getInformationMessage( getLocale() ) ); |
| 202 | dialog.setResizable( isResizable() ); |
| 203 | dialog.setVisible( true ); |
| 204 | dialog.dispose(); |
| 205 | break; |
| 206 | |
| 207 | case MessageEvent.NOTIFICATION: |
| 208 | optionPane = new JOptionPane(); |
| 209 | optionPane.setMessage( panel ); |
| 210 | optionPane.setMessageType( JOptionPane.INFORMATION_MESSAGE ); |
| 211 | dialog = optionPane.createDialog( getParent(), getNotificationMessage( getLocale() ) ); |
| 212 | dialog.setResizable( isResizable() ); |
| 213 | dialog.setVisible( true ); |
| 214 | dialog.dispose(); |
| 215 | break; |
| 216 | |
| 217 | case MessageEvent.WARNING: |
| 218 | optionPane = new JOptionPane(); |
| 219 | optionPane.setMessage( panel ); |
| 220 | optionPane.setMessageType( JOptionPane.WARNING_MESSAGE ); |
| 221 | dialog = optionPane.createDialog( getParent(), getWarningMessage( getLocale() ) ); |
| 222 | dialog.setResizable( isResizable() ); |
| 223 | dialog.setVisible( true ); |
| 224 | dialog.dispose(); |
| 225 | break; |
| 226 | |
| 227 | case MessageEvent.ERROR: |
| 228 | optionPane = new JOptionPane(); |
| 229 | optionPane.setMessage( panel ); |
| 230 | optionPane.setMessageType( JOptionPane.ERROR_MESSAGE ); |
| 231 | dialog = optionPane.createDialog( getParent(), getErrorMessage( getLocale() ) ); |
| 232 | dialog.setResizable( isResizable() ); |
| 233 | dialog.setVisible( true ); |
| 234 | dialog.dispose(); |
| 235 | break; |
| 236 | |
| 237 | default: |
| 238 | getLogger().warn( getUnknownMessageEventTypeMessage( |
| 239 | getLocale(), new Integer( event.getType() ) ) ); |
| 240 | |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | }; |
| 245 | |
| 246 | if ( SwingUtilities.isEventDispatchThread() ) |
| 247 | { |
| 248 | r.run(); |
| 249 | } |
| 250 | else |
| 251 | { |
| 252 | SwingUtilities.invokeAndWait( r ); |
| 253 | } |
| 254 | } |
| 255 | catch ( final InterruptedException e ) |
| 256 | { |
| 257 | this.getLogger().error( e ); |
| 258 | } |
| 259 | catch ( final InvocationTargetException e ) |
| 260 | { |
| 261 | this.getLogger().error( e ); |
| 262 | } |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | //---------------------------------------------------------MessageListener-- |
| 267 | //--SwingMessagePane-------------------------------------------------------- |
| 268 | |
| 269 | /** The current parent component to use when displaying messages. */ |
| 270 | private Component parent; |
| 271 | |
| 272 | /** Maximum number of messages displayed per event. */ |
| 273 | private Integer maximumMessages; |
| 274 | |
| 275 | /** Number of columns the preferred width of the message pane is computed with. */ |
| 276 | private Integer columns; |
| 277 | |
| 278 | /** Flag indicating the message pane is resizable. */ |
| 279 | private Boolean resizable; |
| 280 | |
| 281 | /** |
| 282 | * Creates a new {@code SwingMessagePane} instance taking the parent component to use when displaying messages. |
| 283 | * |
| 284 | * @param parent The parent component to use when displaying messages. |
| 285 | * |
| 286 | * @throws NullPointerException if {@code parent} is {@code null}. |
| 287 | * @throws HeadlessException if this class is used in an environment not providing a keyboard, display, or mouse. |
| 288 | */ |
| 289 | public SwingMessagePane( final Component parent ) |
| 290 | { |
| 291 | this( parent, Integer.MIN_VALUE, Integer.MIN_VALUE, false ); |
| 292 | } |
| 293 | |
| 294 | /** |
| 295 | * Creates a new {@code SwingMessagePane} instance taking the parent component to use when displaying messages and |
| 296 | * the maximum number of messages displayed per event. |
| 297 | * |
| 298 | * @param parent The parent component to use when displaying messages. |
| 299 | * @param maximumMessages Maximum number of messages displayed per event. |
| 300 | * |
| 301 | * @throws NullPointerException if {@code parent} is {@code null}. |
| 302 | * @throws HeadlessException if this class is used in an environment not providing a keyboard, display, or mouse. |
| 303 | */ |
| 304 | public SwingMessagePane( final Component parent, final int maximumMessages ) |
| 305 | { |
| 306 | this( parent, maximumMessages, Integer.MIN_VALUE, false ); |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Creates a new {@code SwingMessagePane} instance taking the parent component to use when displaying messages, the |
| 311 | * maximum number of messages displayed per event and a number of columns to compute the preferred width of the |
| 312 | * message pane with. |
| 313 | * |
| 314 | * @param parent The parent component to use when displaying messages. |
| 315 | * @param maximumMessages Maximum number of messages displayed per event. |
| 316 | * @param columns Number of columns the preferred width of the message pane should be computed with. |
| 317 | * |
| 318 | * @throws NullPointerException if {@code parent} is {@code null}. |
| 319 | * @throws HeadlessException if this class is used in an environment not providing a keyboard, display, or mouse. |
| 320 | * |
| 321 | * @since 1.10 |
| 322 | */ |
| 323 | public SwingMessagePane( final Component parent, final int maximumMessages, final int columns ) |
| 324 | { |
| 325 | this( parent, maximumMessages, columns, false ); |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * Creates a new {@code SwingMessagePane} instance taking the parent component to use when displaying messages, the |
| 330 | * maximum number of messages displayed per event, a number of columns to compute the preferred width of the |
| 331 | * message pane with and a flag indicating the message pane is resizable. |
| 332 | * |
| 333 | * @param parent The parent component to use when displaying messages. |
| 334 | * @param maximumMessages Maximum number of messages displayed per event. |
| 335 | * @param columns Number of columns the preferred width of the message pane should be computed with. |
| 336 | * @param resizable {@code true}, if the message pane should be resizable; {@code false} if the message pane should |
| 337 | * have a fixed size. |
| 338 | * |
| 339 | * @throws NullPointerException if {@code parent} is {@code null}. |
| 340 | * @throws HeadlessException if this class is used in an environment not providing a keyboard, display, or mouse. |
| 341 | * |
| 342 | * @since 1.11 |
| 343 | */ |
| 344 | public SwingMessagePane( final Component parent, final int maximumMessages, final int columns, |
| 345 | final boolean resizable ) |
| 346 | { |
| 347 | if ( parent == null ) |
| 348 | { |
| 349 | throw new NullPointerException( "parent" ); |
| 350 | } |
| 351 | |
| 352 | if ( GraphicsEnvironment.isHeadless() ) |
| 353 | { |
| 354 | throw new HeadlessException(); |
| 355 | } |
| 356 | |
| 357 | this.parent = parent; |
| 358 | |
| 359 | if ( maximumMessages > 0 ) |
| 360 | { |
| 361 | this.maximumMessages = new Integer( maximumMessages ); |
| 362 | } |
| 363 | if ( columns > 0 ) |
| 364 | { |
| 365 | this.columns = new Integer( columns ); |
| 366 | } |
| 367 | |
| 368 | this.resizable = Boolean.valueOf( resizable ); |
| 369 | } |
| 370 | |
| 371 | /** |
| 372 | * Gets the parent component for any message displays. |
| 373 | * |
| 374 | * @return the parent component for any message displays. |
| 375 | */ |
| 376 | public Component getParent() |
| 377 | { |
| 378 | return this.parent; |
| 379 | } |
| 380 | |
| 381 | /** |
| 382 | * Sets the parent component used by any message displays. |
| 383 | * |
| 384 | * @param parent the parent component used by any message displays. |
| 385 | * |
| 386 | * @throws NullPointerException if {@code parent} is {@code null}. |
| 387 | */ |
| 388 | public void setParent( final Component parent ) |
| 389 | { |
| 390 | if ( parent == null ) |
| 391 | { |
| 392 | throw new NullPointerException( "parent" ); |
| 393 | } |
| 394 | |
| 395 | this.parent = parent; |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * Gets the maximum number of messages displayed per event. |
| 400 | * |
| 401 | * @return the maximum number of messages displayed per event. |
| 402 | */ |
| 403 | public int getMaximumMessages() |
| 404 | { |
| 405 | if ( this.maximumMessages == null ) |
| 406 | { |
| 407 | this.maximumMessages = this.getDefaultMaximumMessages(); |
| 408 | } |
| 409 | |
| 410 | return this.maximumMessages.intValue(); |
| 411 | } |
| 412 | |
| 413 | /** |
| 414 | * Gets the number of columns the preferred width of the message pane is computed with. |
| 415 | * |
| 416 | * @return The number of columns the preferred width of the message pane is computed with. |
| 417 | * |
| 418 | * @since 1.10 |
| 419 | */ |
| 420 | public int getColumns() |
| 421 | { |
| 422 | if ( this.columns == null ) |
| 423 | { |
| 424 | this.columns = this.getDefaultColumns(); |
| 425 | } |
| 426 | |
| 427 | return this.columns.intValue(); |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * Gets a flag indicating the message pane is resizable. |
| 432 | * |
| 433 | * @return {@code true}, if the message pane is resizable; {@code false} if the message pane is not resizable. |
| 434 | * |
| 435 | * @since 1.11 |
| 436 | */ |
| 437 | public boolean isResizable() |
| 438 | { |
| 439 | if ( this.resizable == null ) |
| 440 | { |
| 441 | this.resizable = this.isDefaultResizable(); |
| 442 | } |
| 443 | |
| 444 | return this.resizable.booleanValue(); |
| 445 | } |
| 446 | |
| 447 | //--------------------------------------------------------SwingMessagePane-- |
| 448 | //--Messages---------------------------------------------------------------- |
| 449 | |
| 450 | // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:jdtausMessages |
| 451 | // This section is managed by jdtaus-container-mojo. |
| 452 | |
| 453 | /** |
| 454 | * Gets the text of message <code>unknownMessageEventType</code>. |
| 455 | * <blockquote><pre>Meldung unbekannten Typs {0,number} ignoriert.</pre></blockquote> |
| 456 | * <blockquote><pre>Ignored message event of unknown type {0,number}.</pre></blockquote> |
| 457 | * |
| 458 | * @param locale The locale of the message instance to return. |
| 459 | * @param unknownEventType The unknown event type. |
| 460 | * |
| 461 | * @return Message stating that an unknown message event got ignored. |
| 462 | */ |
| 463 | private String getUnknownMessageEventTypeMessage( final Locale locale, |
| 464 | final java.lang.Number unknownEventType ) |
| 465 | { |
| 466 | return ContainerFactory.getContainer(). |
| 467 | getMessage( this, "unknownMessageEventType", locale, |
| 468 | new Object[] |
| 469 | { |
| 470 | unknownEventType |
| 471 | }); |
| 472 | |
| 473 | } |
| 474 | |
| 475 | /** |
| 476 | * Gets the text of message <code>information</code>. |
| 477 | * <blockquote><pre>Information</pre></blockquote> |
| 478 | * <blockquote><pre>Information</pre></blockquote> |
| 479 | * |
| 480 | * @param locale The locale of the message instance to return. |
| 481 | * |
| 482 | * @return Information title. |
| 483 | */ |
| 484 | private String getInformationMessage( final Locale locale ) |
| 485 | { |
| 486 | return ContainerFactory.getContainer(). |
| 487 | getMessage( this, "information", locale, null ); |
| 488 | |
| 489 | } |
| 490 | |
| 491 | /** |
| 492 | * Gets the text of message <code>notification</code>. |
| 493 | * <blockquote><pre>Hinweis</pre></blockquote> |
| 494 | * <blockquote><pre>Notification</pre></blockquote> |
| 495 | * |
| 496 | * @param locale The locale of the message instance to return. |
| 497 | * |
| 498 | * @return Notification title. |
| 499 | */ |
| 500 | private String getNotificationMessage( final Locale locale ) |
| 501 | { |
| 502 | return ContainerFactory.getContainer(). |
| 503 | getMessage( this, "notification", locale, null ); |
| 504 | |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Gets the text of message <code>warning</code>. |
| 509 | * <blockquote><pre>Warnung</pre></blockquote> |
| 510 | * <blockquote><pre>Warning</pre></blockquote> |
| 511 | * |
| 512 | * @param locale The locale of the message instance to return. |
| 513 | * |
| 514 | * @return Warning title. |
| 515 | */ |
| 516 | private String getWarningMessage( final Locale locale ) |
| 517 | { |
| 518 | return ContainerFactory.getContainer(). |
| 519 | getMessage( this, "warning", locale, null ); |
| 520 | |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * Gets the text of message <code>error</code>. |
| 525 | * <blockquote><pre>Fehler</pre></blockquote> |
| 526 | * <blockquote><pre>Error</pre></blockquote> |
| 527 | * |
| 528 | * @param locale The locale of the message instance to return. |
| 529 | * |
| 530 | * @return Error title. |
| 531 | */ |
| 532 | private String getErrorMessage( final Locale locale ) |
| 533 | { |
| 534 | return ContainerFactory.getContainer(). |
| 535 | getMessage( this, "error", locale, null ); |
| 536 | |
| 537 | } |
| 538 | |
| 539 | // </editor-fold>//GEN-END:jdtausMessages |
| 540 | |
| 541 | //----------------------------------------------------------------Messages-- |
| 542 | } |
| 543 | |
| 544 | /** |
| 545 | * Extension to {@code JLabel} adding support for a preferred width based on a number of columns. |
| 546 | * |
| 547 | * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> |
| 548 | * @version $JDTAUS: SwingMessagePane.java 8786 2012-12-03 02:09:05Z schulte $ |
| 549 | */ |
| 550 | class HtmlLabel extends JLabel |
| 551 | { |
| 552 | |
| 553 | /** Serial version UID for backwards compatibility with 1.10.x classes. */ |
| 554 | private static final long serialVersionUID = -3022796716512336911L; |
| 555 | |
| 556 | /** The number of columns the preferred width of the label is computed with. */ |
| 557 | private int columns; |
| 558 | |
| 559 | /** |
| 560 | * Creates a new {@code HtmlLabel} instance taking a number of columns to compute the preferred width of the label |
| 561 | * with. |
| 562 | * |
| 563 | * @param columns The number of columns to compute the preferred width of the label with. |
| 564 | */ |
| 565 | HtmlLabel( final int columns ) |
| 566 | { |
| 567 | super(); |
| 568 | this.columns = columns; |
| 569 | this.setVerticalAlignment( SwingConstants.TOP ); |
| 570 | this.setVerticalTextPosition( SwingConstants.TOP ); |
| 571 | |
| 572 | if ( columns > 0 ) |
| 573 | { |
| 574 | this.addPropertyChangeListener( new PropertyChangeListener() |
| 575 | { |
| 576 | |
| 577 | public void propertyChange( final PropertyChangeEvent evt ) |
| 578 | { |
| 579 | if ( ( "text".equals( evt.getPropertyName() ) |
| 580 | || "font".equals( evt.getPropertyName() ) |
| 581 | || "border".equals( evt.getPropertyName() ) ) |
| 582 | && getText() != null |
| 583 | && BasicHTML.isHTMLString( getText() ) ) |
| 584 | { |
| 585 | setPreferredSize( computePreferredSize() ); |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | } ); |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | private Dimension computePreferredSize() |
| 594 | { |
| 595 | Dimension preferredSize = null; |
| 596 | final Insets insets = this.getInsets(); |
| 597 | final int width = this.columns * this.getFontMetrics( this.getFont() ).charWidth( 'W' ) |
| 598 | + ( insets != null ? insets.left + insets.right : 0 ); |
| 599 | |
| 600 | final JLabel label = new JLabel( this.getText() ); |
| 601 | final Object html = label.getClientProperty( BasicHTML.propertyKey ); |
| 602 | |
| 603 | if ( html instanceof View ) |
| 604 | { |
| 605 | final View view = (View) html; |
| 606 | view.setSize( width, 0 ); |
| 607 | preferredSize = new Dimension( (int) view.getPreferredSpan( View.X_AXIS ), |
| 608 | (int) view.getPreferredSpan( View.Y_AXIS ) ); |
| 609 | |
| 610 | } |
| 611 | |
| 612 | return preferredSize; |
| 613 | } |
| 614 | |
| 615 | } |