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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2010, Oracle and/or its affiliates. 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. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | |||
| 27 | |||
| 28 | package javax.swing; | ||
| 29 | |||
| 30 | |||
| 31 | |||
| 32 | import java.beans.ConstructorProperties; | ||
| 33 | import javax.swing.plaf.*; | ||
| 34 | import javax.accessibility.*; | ||
| 35 | |||
| 36 | import java.awt.*; | ||
| 37 | |||
| 38 | import java.io.ObjectOutputStream; | ||
| 39 | import java.io.ObjectInputStream; | ||
| 40 | import java.io.IOException; | ||
| 41 | |||
| 42 | |||
| 43 | |||
| 44 | /** | ||
| 45 | * <code>JSplitPane</code> is used to divide two (and only two) | ||
| 46 | * <code>Component</code>s. The two <code>Component</code>s | ||
| 47 | * are graphically divided based on the look and feel | ||
| 48 | * implementation, and the two <code>Component</code>s can then be | ||
| 49 | * interactively resized by the user. | ||
| 50 | * Information on using <code>JSplitPane</code> is in | ||
| 51 | * <a | ||
| 52 | href="http://java.sun.com/docs/books/tutorial/uiswing/components/splitpane.html">How to Use Split Panes</a> in | ||
| 53 | * <em>The Java Tutorial</em>. | ||
| 54 | * <p> | ||
| 55 | * The two <code>Component</code>s in a split pane can be aligned | ||
| 56 | * left to right using | ||
| 57 | * <code>JSplitPane.HORIZONTAL_SPLIT</code>, or top to bottom using | ||
| 58 | * <code>JSplitPane.VERTICAL_SPLIT</code>. | ||
| 59 | * The preferred way to change the size of the <code>Component</code>s | ||
| 60 | * is to invoke | ||
| 61 | * <code>setDividerLocation</code> where <code>location</code> is either | ||
| 62 | * the new x or y position, depending on the orientation of the | ||
| 63 | * <code>JSplitPane</code>. | ||
| 64 | * <p> | ||
| 65 | * To resize the <code>Component</code>s to their preferred sizes invoke | ||
| 66 | * <code>resetToPreferredSizes</code>. | ||
| 67 | * <p> | ||
| 68 | * When the user is resizing the <code>Component</code>s the minimum | ||
| 69 | * size of the <code>Components</code> is used to determine the | ||
| 70 | * maximum/minimum position the <code>Component</code>s | ||
| 71 | * can be set to. If the minimum size of the two | ||
| 72 | * components is greater than the size of the split pane the divider | ||
| 73 | * will not allow you to resize it. To alter the minimum size of a | ||
| 74 | * <code>JComponent</code>, see {@link JComponent#setMinimumSize}. | ||
| 75 | * <p> | ||
| 76 | * When the user resizes the split pane the new space is distributed between | ||
| 77 | * the two components based on the <code>resizeWeight</code> property. | ||
| 78 | * A value of 0, | ||
| 79 | * the default, indicates the right/bottom component gets all the space, | ||
| 80 | * where as a value of 1 indicates the left/top component gets all the space. | ||
| 81 | * <p> | ||
| 82 | * <strong>Warning:</strong> Swing is not thread safe. For more | ||
| 83 | * information see <a | ||
| 84 | * href="package-summary.html#threading">Swing's Threading | ||
| 85 | * Policy</a>. | ||
| 86 | * <p> | ||
| 87 | * <strong>Warning:</strong> | ||
| 88 | * Serialized objects of this class will not be compatible with | ||
| 89 | * future Swing releases. The current serialization support is | ||
| 90 | * appropriate for short term storage or RMI between applications running | ||
| 91 | * the same version of Swing. As of 1.4, support for long term storage | ||
| 92 | * of all JavaBeans<sup><font size="-2">TM</font></sup> | ||
| 93 | * has been added to the <code>java.beans</code> package. | ||
| 94 | * Please see {@link java.beans.XMLEncoder}. | ||
| 95 | * | ||
| 96 | * @see #setDividerLocation | ||
| 97 | * @see #resetToPreferredSizes | ||
| 98 | * | ||
| 99 | * @author Scott Violet | ||
| 100 | */ | ||
| 101 | public class JSplitPane extends JComponent implements Accessible | ||
| 102 | { | ||
| 103 | /** | ||
| 104 | * @see #getUIClassID | ||
| 105 | * @see #readObject | ||
| 106 | */ | ||
| 107 | private static final String uiClassID = "SplitPaneUI"; | ||
| 108 | |||
| 109 | /** | ||
| 110 | * Vertical split indicates the <code>Component</code>s are | ||
| 111 | * split along the y axis. For example the two | ||
| 112 | * <code>Component</code>s will be split one on top of the other. | ||
| 113 | */ | ||
| 114 | public final static int VERTICAL_SPLIT = 0; | ||
| 115 | |||
| 116 | /** | ||
| 117 | * Horizontal split indicates the <code>Component</code>s are | ||
| 118 | * split along the x axis. For example the two | ||
| 119 | * <code>Component</code>s will be split one to the left of the | ||
| 120 | * other. | ||
| 121 | */ | ||
| 122 | public final static int HORIZONTAL_SPLIT = 1; | ||
| 123 | |||
| 124 | /** | ||
| 125 | * Used to add a <code>Component</code> to the left of the other | ||
| 126 | * <code>Component</code>. | ||
| 127 | */ | ||
| 128 | public final static String LEFT = "left"; | ||
| 129 | |||
| 130 | /** | ||
| 131 | * Used to add a <code>Component</code> to the right of the other | ||
| 132 | * <code>Component</code>. | ||
| 133 | */ | ||
| 134 | public final static String RIGHT = "right"; | ||
| 135 | |||
| 136 | /** | ||
| 137 | * Used to add a <code>Component</code> above the other | ||
| 138 | * <code>Component</code>. | ||
| 139 | */ | ||
| 140 | public final static String TOP = "top"; | ||
| 141 | |||
| 142 | /** | ||
| 143 | * Used to add a <code>Component</code> below the other | ||
| 144 | * <code>Component</code>. | ||
| 145 | */ | ||
| 146 | public final static String BOTTOM = "bottom"; | ||
| 147 | |||
| 148 | /** | ||
| 149 | * Used to add a <code>Component</code> that will represent the divider. | ||
| 150 | */ | ||
| 151 | public final static String DIVIDER = "divider"; | ||
| 152 | |||
| 153 | /** | ||
| 154 | * Bound property name for orientation (horizontal or vertical). | ||
| 155 | */ | ||
| 156 | public final static String ORIENTATION_PROPERTY = "orientation"; | ||
| 157 | |||
| 158 | /** | ||
| 159 | * Bound property name for continuousLayout. | ||
| 160 | */ | ||
| 161 | public final static String CONTINUOUS_LAYOUT_PROPERTY = "continuousLayout"; | ||
| 162 | |||
| 163 | /** | ||
| 164 | * Bound property name for border. | ||
| 165 | */ | ||
| 166 | public final static String DIVIDER_SIZE_PROPERTY = "dividerSize"; | ||
| 167 | |||
| 168 | /** | ||
| 169 | * Bound property for oneTouchExpandable. | ||
| 170 | */ | ||
| 171 | public final static String ONE_TOUCH_EXPANDABLE_PROPERTY = | ||
| 172 | "oneTouchExpandable"; | ||
| 173 | |||
| 174 | /** | ||
| 175 | * Bound property for lastLocation. | ||
| 176 | */ | ||
| 177 | public final static String LAST_DIVIDER_LOCATION_PROPERTY = | ||
| 178 | "lastDividerLocation"; | ||
| 179 | |||
| 180 | /** | ||
| 181 | * Bound property for the dividerLocation. | ||
| 182 | * @since 1.3 | ||
| 183 | */ | ||
| 184 | public final static String DIVIDER_LOCATION_PROPERTY = "dividerLocation"; | ||
| 185 | |||
| 186 | /** | ||
| 187 | * Bound property for weight. | ||
| 188 | * @since 1.3 | ||
| 189 | */ | ||
| 190 | public final static String RESIZE_WEIGHT_PROPERTY = "resizeWeight"; | ||
| 191 | |||
| 192 | /** | ||
| 193 | * How the views are split. | ||
| 194 | */ | ||
| 195 | protected int orientation; | ||
| 196 | |||
| 197 | /** | ||
| 198 | * Whether or not the views are continuously redisplayed while | ||
| 199 | * resizing. | ||
| 200 | */ | ||
| 201 | protected boolean continuousLayout; | ||
| 202 | |||
| 203 | /** | ||
| 204 | * The left or top component. | ||
| 205 | */ | ||
| 206 | protected Component leftComponent; | ||
| 207 | |||
| 208 | /** | ||
| 209 | * The right or bottom component. | ||
| 210 | */ | ||
| 211 | protected Component rightComponent; | ||
| 212 | |||
| 213 | /** | ||
| 214 | * Size of the divider. | ||
| 215 | */ | ||
| 216 | protected int dividerSize; | ||
| 217 | private boolean dividerSizeSet = false; | ||
| 218 | |||
| 219 | /** | ||
| 220 | * Is a little widget provided to quickly expand/collapse the | ||
| 221 | * split pane? | ||
| 222 | */ | ||
| 223 | protected boolean oneTouchExpandable; | ||
| 224 | private boolean oneTouchExpandableSet; | ||
| 225 | |||
| 226 | /** | ||
| 227 | * Previous location of the split pane. | ||
| 228 | */ | ||
| 229 | protected int lastDividerLocation; | ||
| 230 | |||
| 231 | /** | ||
| 232 | * How to distribute extra space. | ||
| 233 | */ | ||
| 234 | private double resizeWeight; | ||
| 235 | |||
| 236 | /** | ||
| 237 | * Location of the divider, at least the value that was set, the UI may | ||
| 238 | * have a different value. | ||
| 239 | */ | ||
| 240 | private int dividerLocation; | ||
| 241 | |||
| 242 | |||
| 243 | /** | ||
| 244 | * Creates a new <code>JSplitPane</code> configured to arrange the child | ||
| 245 | * components side-by-side horizontally, using two buttons for the components. | ||
| 246 | */ | ||
| 247 | public JSplitPane() { | ||
| 248 | this(JSplitPane.HORIZONTAL_SPLIT, | ||
| 249 | UIManager.getBoolean("SplitPane.continuousLayout"), | ||
| 250 | new JButton(UIManager.getString("SplitPane.leftButtonText")), | ||
| 251 | new JButton(UIManager.getString("SplitPane.rightButtonText"))); | ||
| 252 | } | ||
| 253 | |||
| 254 | |||
| 255 | /** | ||
| 256 | * Creates a new <code>JSplitPane</code> configured with the | ||
| 257 | * specified orientation. | ||
| 258 | * | ||
| 259 | * @param newOrientation <code>JSplitPane.HORIZONTAL_SPLIT</code> or | ||
| 260 | * <code>JSplitPane.VERTICAL_SPLIT</code> | ||
| 261 | * @exception IllegalArgumentException if <code>orientation</code> | ||
| 262 | * is not one of HORIZONTAL_SPLIT or VERTICAL_SPLIT. | ||
| 263 | */ | ||
| 264 | @ConstructorProperties({"orientation"}) | ||
| 265 | public JSplitPane(int newOrientation) { | ||
| 266 | this(newOrientation, | ||
| 267 | UIManager.getBoolean("SplitPane.continuousLayout")); | ||
| 268 | } | ||
| 269 | |||
| 270 | |||
| 271 | /** | ||
| 272 | * Creates a new <code>JSplitPane</code> with the specified | ||
| 273 | * orientation and redrawing style. | ||
| 274 | * | ||
| 275 | * @param newOrientation <code>JSplitPane.HORIZONTAL_SPLIT</code> or | ||
| 276 | * <code>JSplitPane.VERTICAL_SPLIT</code> | ||
| 277 | * @param newContinuousLayout a boolean, true for the components to | ||
| 278 | * redraw continuously as the divider changes position, false | ||
| 279 | * to wait until the divider position stops changing to redraw | ||
| 280 | * @exception IllegalArgumentException if <code>orientation</code> | ||
| 281 | * is not one of HORIZONTAL_SPLIT or VERTICAL_SPLIT | ||
| 282 | */ | ||
| 283 | public JSplitPane(int newOrientation, | ||
| 284 | boolean newContinuousLayout) { | ||
| 285 | this(newOrientation, newContinuousLayout, null, null); | ||
| 286 | } | ||
| 287 | |||
| 288 | |||
| 289 | /** | ||
| 290 | * Creates a new <code>JSplitPane</code> with the specified | ||
| 291 | * orientation and the specified components. | ||
| 292 | * | ||
| 293 | * @param newOrientation <code>JSplitPane.HORIZONTAL_SPLIT</code> or | ||
| 294 | * <code>JSplitPane.VERTICAL_SPLIT</code> | ||
| 295 | * @param newLeftComponent the <code>Component</code> that will | ||
| 296 | * appear on the left | ||
| 297 | * of a horizontally-split pane, or at the top of a | ||
| 298 | * vertically-split pane | ||
| 299 | * @param newRightComponent the <code>Component</code> that will | ||
| 300 | * appear on the right | ||
| 301 | * of a horizontally-split pane, or at the bottom of a | ||
| 302 | * vertically-split pane | ||
| 303 | * @exception IllegalArgumentException if <code>orientation</code> | ||
| 304 | * is not one of: HORIZONTAL_SPLIT or VERTICAL_SPLIT | ||
| 305 | */ | ||
| 306 | public JSplitPane(int newOrientation, | ||
| 307 | Component newLeftComponent, | ||
| 308 | Component newRightComponent){ | ||
| 309 | this(newOrientation, | ||
| 310 | UIManager.getBoolean("SplitPane.continuousLayout"), | ||
| 311 | newLeftComponent, newRightComponent); | ||
| 312 | } | ||
| 313 | |||
| 314 | |||
| 315 | /** | ||
| 316 | * Creates a new <code>JSplitPane</code> with the specified | ||
| 317 | * orientation and | ||
| 318 | * redrawing style, and with the specified components. | ||
| 319 | * | ||
| 320 | * @param newOrientation <code>JSplitPane.HORIZONTAL_SPLIT</code> or | ||
| 321 | * <code>JSplitPane.VERTICAL_SPLIT</code> | ||
| 322 | * @param newContinuousLayout a boolean, true for the components to | ||
| 323 | * redraw continuously as the divider changes position, false | ||
| 324 | * to wait until the divider position stops changing to redraw | ||
| 325 | * @param newLeftComponent the <code>Component</code> that will | ||
| 326 | * appear on the left | ||
| 327 | * of a horizontally-split pane, or at the top of a | ||
| 328 | * vertically-split pane | ||
| 329 | * @param newRightComponent the <code>Component</code> that will | ||
| 330 | * appear on the right | ||
| 331 | * of a horizontally-split pane, or at the bottom of a | ||
| 332 | * vertically-split pane | ||
| 333 | * @exception IllegalArgumentException if <code>orientation</code> | ||
| 334 | * is not one of HORIZONTAL_SPLIT or VERTICAL_SPLIT | ||
| 335 | */ | ||
| 336 | public JSplitPane(int newOrientation, | ||
| 337 | boolean newContinuousLayout, | ||
| 338 | Component newLeftComponent, | ||
| 339 | Component newRightComponent){ | ||
| 340 | super(); | ||
| 341 | |||
| 342 | dividerLocation = -1; | ||
| 343 | setLayout(null); | ||
| 344 | setUIProperty("opaque", Boolean.TRUE); | ||
| 345 | orientation = newOrientation; | ||
| 346 | if (orientation != HORIZONTAL_SPLIT && orientation != VERTICAL_SPLIT) | ||
| 347 | throw new IllegalArgumentException("cannot create JSplitPane, " + | ||
| 348 | "orientation must be one of " + | ||
| 349 | "JSplitPane.HORIZONTAL_SPLIT " + | ||
| 350 | "or JSplitPane.VERTICAL_SPLIT"); | ||
| 351 | continuousLayout = newContinuousLayout; | ||
| 352 | if (newLeftComponent != null) | ||
| 353 | setLeftComponent(newLeftComponent); | ||
| 354 | if (newRightComponent != null) | ||
| 355 | setRightComponent(newRightComponent); | ||
| 356 | updateUI(); | ||
| 357 | |||
| 358 | } | ||
| 359 | |||
| 360 | |||
| 361 | /** | ||
| 362 | * Sets the L&F object that renders this component. | ||
| 363 | * | ||
| 364 | * @param ui the <code>SplitPaneUI</code> L&F object | ||
| 365 | * @see UIDefaults#getUI | ||
| 366 | * @beaninfo | ||
| 367 | * bound: true | ||
| 368 | * hidden: true | ||
| 369 | * attribute: visualUpdate true | ||
| 370 | * description: The UI object that implements the Component's LookAndFeel. | ||
| 371 | */ | ||
| 372 | public void setUI(SplitPaneUI ui) { | ||
| 373 | if ((SplitPaneUI)this.ui != ui) { | ||
| 374 | super.setUI(ui); | ||
| 375 | revalidate(); | ||
| 376 | } | ||
| 377 | } | ||
| 378 | |||
| 379 | |||
| 380 | /** | ||
| 381 | * Returns the <code>SplitPaneUI</code> that is providing the | ||
| 382 | * current look and feel. | ||
| 383 | * | ||
| 384 | * @return the <code>SplitPaneUI</code> object that renders this component | ||
| 385 | * @beaninfo | ||
| 386 | * expert: true | ||
| 387 | * description: The L&F object that renders this component. | ||
| 388 | */ | ||
| 389 | public SplitPaneUI getUI() { | ||
| 390 | return (SplitPaneUI)ui; | ||
| 391 | } | ||
| 392 | |||
| 393 | |||
| 394 | /** | ||
| 395 | * Notification from the <code>UIManager</code> that the L&F has changed. | ||
| 396 | * Replaces the current UI object with the latest version from the | ||
| 397 | * <code>UIManager</code>. | ||
| 398 | * | ||
| 399 | * @see JComponent#updateUI | ||
| 400 | */ | ||
| 401 | public void updateUI() { | ||
| 402 | setUI((SplitPaneUI)UIManager.getUI(this)); | ||
| 403 | revalidate(); | ||
| 404 | } | ||
| 405 | |||
| 406 | |||
| 407 | /** | ||
| 408 | * Returns the name of the L&F class that renders this component. | ||
| 409 | * | ||
| 410 | * @return the string "SplitPaneUI" | ||
| 411 | * @see JComponent#getUIClassID | ||
| 412 | * @see UIDefaults#getUI | ||
| 413 | * @beaninfo | ||
| 414 | * expert: true | ||
| 415 | * description: A string that specifies the name of the L&F class. | ||
| 416 | */ | ||
| 417 | public String getUIClassID() { | ||
| 418 | return uiClassID; | ||
| 419 | } | ||
| 420 | |||
| 421 | |||
| 422 | /** | ||
| 423 | * Sets the size of the divider. | ||
| 424 | * | ||
| 425 | * @param newSize an integer giving the size of the divider in pixels | ||
| 426 | * @beaninfo | ||
| 427 | * bound: true | ||
| 428 | * description: The size of the divider. | ||
| 429 | */ | ||
| 430 | public void setDividerSize(int newSize) { | ||
| 431 | int oldSize = dividerSize; | ||
| 432 | |||
| 433 | dividerSizeSet = true; | ||
| 434 | if (oldSize != newSize) { | ||
| 435 | dividerSize = newSize; | ||
| 436 | firePropertyChange(DIVIDER_SIZE_PROPERTY, oldSize, newSize); | ||
| 437 | } | ||
| 438 | } | ||
| 439 | |||
| 440 | |||
| 441 | /** | ||
| 442 | * Returns the size of the divider. | ||
| 443 | * | ||
| 444 | * @return an integer giving the size of the divider in pixels | ||
| 445 | */ | ||
| 446 | public int getDividerSize() { | ||
| 447 | return dividerSize; | ||
| 448 | } | ||
| 449 | |||
| 450 | |||
| 451 | /** | ||
| 452 | * Sets the component to the left (or above) the divider. | ||
| 453 | * | ||
| 454 | * @param comp the <code>Component</code> to display in that position | ||
| 455 | */ | ||
| 456 | public void setLeftComponent(Component comp) { | ||
| 457 | if (comp == null) { | ||
| 458 | if (leftComponent != null) { | ||
| 459 | remove(leftComponent); | ||
| 460 | leftComponent = null; | ||
| 461 | } | ||
| 462 | } else { | ||
| 463 | add(comp, JSplitPane.LEFT); | ||
| 464 | } | ||
| 465 | } | ||
| 466 | |||
| 467 | |||
| 468 | /** | ||
| 469 | * Returns the component to the left (or above) the divider. | ||
| 470 | * | ||
| 471 | * @return the <code>Component</code> displayed in that position | ||
| 472 | * @beaninfo | ||
| 473 | * preferred: true | ||
| 474 | * description: The component to the left (or above) the divider. | ||
| 475 | */ | ||
| 476 | public Component getLeftComponent() { | ||
| 477 | return leftComponent; | ||
| 478 | } | ||
| 479 | |||
| 480 | |||
| 481 | /** | ||
| 482 | * Sets the component above, or to the left of the divider. | ||
| 483 | * | ||
| 484 | * @param comp the <code>Component</code> to display in that position | ||
| 485 | * @beaninfo | ||
| 486 | * description: The component above, or to the left of the divider. | ||
| 487 | */ | ||
| 488 | public void setTopComponent(Component comp) { | ||
| 489 | setLeftComponent(comp); | ||
| 490 | } | ||
| 491 | |||
| 492 | |||
| 493 | /** | ||
| 494 | * Returns the component above, or to the left of the divider. | ||
| 495 | * | ||
| 496 | * @return the <code>Component</code> displayed in that position | ||
| 497 | */ | ||
| 498 | public Component getTopComponent() { | ||
| 499 | return leftComponent; | ||
| 500 | } | ||
| 501 | |||
| 502 | |||
| 503 | /** | ||
| 504 | * Sets the component to the right (or below) the divider. | ||
| 505 | * | ||
| 506 | * @param comp the <code>Component</code> to display in that position | ||
| 507 | * @beaninfo | ||
| 508 | * preferred: true | ||
| 509 | * description: The component to the right (or below) the divider. | ||
| 510 | */ | ||
| 511 | public void setRightComponent(Component comp) { | ||
| 512 | if (comp == null) { | ||
| 513 | if (rightComponent != null) { | ||
| 514 | remove(rightComponent); | ||
| 515 | rightComponent = null; | ||
| 516 | } | ||
| 517 | } else { | ||
| 518 | add(comp, JSplitPane.RIGHT); | ||
| 519 | } | ||
| 520 | } | ||
| 521 | |||
| 522 | |||
| 523 | /** | ||
| 524 | * Returns the component to the right (or below) the divider. | ||
| 525 | * | ||
| 526 | * @return the <code>Component</code> displayed in that position | ||
| 527 | */ | ||
| 528 | public Component getRightComponent() { | ||
| 529 | return rightComponent; | ||
| 530 | } | ||
| 531 | |||
| 532 | |||
| 533 | /** | ||
| 534 | * Sets the component below, or to the right of the divider. | ||
| 535 | * | ||
| 536 | * @param comp the <code>Component</code> to display in that position | ||
| 537 | * @beaninfo | ||
| 538 | * description: The component below, or to the right of the divider. | ||
| 539 | */ | ||
| 540 | public void setBottomComponent(Component comp) { | ||
| 541 | setRightComponent(comp); | ||
| 542 | } | ||
| 543 | |||
| 544 | |||
| 545 | /** | ||
| 546 | * Returns the component below, or to the right of the divider. | ||
| 547 | * | ||
| 548 | * @return the <code>Component</code> displayed in that position | ||
| 549 | */ | ||
| 550 | public Component getBottomComponent() { | ||
| 551 | return rightComponent; | ||
| 552 | } | ||
| 553 | |||
| 554 | |||
| 555 | /** | ||
| 556 | * Sets the value of the <code>oneTouchExpandable</code> property, | ||
| 557 | * which must be <code>true</code> for the | ||
| 558 | * <code>JSplitPane</code> to provide a UI widget | ||
| 559 | * on the divider to quickly expand/collapse the divider. | ||
| 560 | * The default value of this property is <code>false</code>. | ||
| 561 | * Some look and feels might not support one-touch expanding; | ||
| 562 | * they will ignore this property. | ||
| 563 | * | ||
| 564 | * @param newValue <code>true</code> to specify that the split pane should provide a | ||
| 565 | * collapse/expand widget | ||
| 566 | * @beaninfo | ||
| 567 | * bound: true | ||
| 568 | * description: UI widget on the divider to quickly | ||
| 569 | * expand/collapse the divider. | ||
| 570 | * | ||
| 571 | * @see #isOneTouchExpandable | ||
| 572 | */ | ||
| 573 | public void setOneTouchExpandable(boolean newValue) { | ||
| 574 | boolean oldValue = oneTouchExpandable; | ||
| 575 | |||
| 576 | oneTouchExpandable = newValue; | ||
| 577 | oneTouchExpandableSet = true; | ||
| 578 | firePropertyChange(ONE_TOUCH_EXPANDABLE_PROPERTY, oldValue, newValue); | ||
| 579 | repaint(); | ||
| 580 | } | ||
| 581 | |||
| 582 | |||
| 583 | /** | ||
| 584 | * Gets the <code>oneTouchExpandable</code> property. | ||
| 585 | * | ||
| 586 | * @return the value of the <code>oneTouchExpandable</code> property | ||
| 587 | * @see #setOneTouchExpandable | ||
| 588 | */ | ||
| 589 | public boolean isOneTouchExpandable() { | ||
| 590 | return oneTouchExpandable; | ||
| 591 | } | ||
| 592 | |||
| 593 | |||
| 594 | /** | ||
| 595 | * Sets the last location the divider was at to | ||
| 596 | * <code>newLastLocation</code>. | ||
| 597 | * | ||
| 598 | * @param newLastLocation an integer specifying the last divider location | ||
| 599 | * in pixels, from the left (or upper) edge of the pane to the | ||
| 600 | * left (or upper) edge of the divider | ||
| 601 | * @beaninfo | ||
| 602 | * bound: true | ||
| 603 | * description: The last location the divider was at. | ||
| 604 | */ | ||
| 605 | public void setLastDividerLocation(int newLastLocation) { | ||
| 606 | int oldLocation = lastDividerLocation; | ||
| 607 | |||
| 608 | lastDividerLocation = newLastLocation; | ||
| 609 | firePropertyChange(LAST_DIVIDER_LOCATION_PROPERTY, oldLocation, | ||
| 610 | newLastLocation); | ||
| 611 | } | ||
| 612 | |||
| 613 | |||
| 614 | /** | ||
| 615 | * Returns the last location the divider was at. | ||
| 616 | * | ||
| 617 | * @return an integer specifying the last divider location as a count | ||
| 618 | * of pixels from the left (or upper) edge of the pane to the | ||
| 619 | * left (or upper) edge of the divider | ||
| 620 | */ | ||
| 621 | public int getLastDividerLocation() { | ||
| 622 | return lastDividerLocation; | ||
| 623 | } | ||
| 624 | |||
| 625 | |||
| 626 | /** | ||
| 627 | * Sets the orientation, or how the splitter is divided. The options | ||
| 628 | * are:<ul> | ||
| 629 | * <li>JSplitPane.VERTICAL_SPLIT (above/below orientation of components) | ||
| 630 | * <li>JSplitPane.HORIZONTAL_SPLIT (left/right orientation of components) | ||
| 631 | * </ul> | ||
| 632 | * | ||
| 633 | * @param orientation an integer specifying the orientation | ||
| 634 | * @exception IllegalArgumentException if orientation is not one of: | ||
| 635 | * HORIZONTAL_SPLIT or VERTICAL_SPLIT. | ||
| 636 | * @beaninfo | ||
| 637 | * bound: true | ||
| 638 | * description: The orientation, or how the splitter is divided. | ||
| 639 | * enum: HORIZONTAL_SPLIT JSplitPane.HORIZONTAL_SPLIT | ||
| 640 | * VERTICAL_SPLIT JSplitPane.VERTICAL_SPLIT | ||
| 641 | */ | ||
| 642 | public void setOrientation(int orientation) { | ||
| 643 | if ((orientation != VERTICAL_SPLIT) && | ||
| 644 | (orientation != HORIZONTAL_SPLIT)) { | ||
| 645 | throw new IllegalArgumentException("JSplitPane: orientation must " + | ||
| 646 | "be one of " + | ||
| 647 | "JSplitPane.VERTICAL_SPLIT or " + | ||
| 648 | "JSplitPane.HORIZONTAL_SPLIT"); | ||
| 649 | } | ||
| 650 | |||
| 651 | int oldOrientation = this.orientation; | ||
| 652 | |||
| 653 | this.orientation = orientation; | ||
| 654 | firePropertyChange(ORIENTATION_PROPERTY, oldOrientation, orientation); | ||
| 655 | } | ||
| 656 | |||
| 657 | |||
| 658 | /** | ||
| 659 | * Returns the orientation. | ||
| 660 | * | ||
| 661 | * @return an integer giving the orientation | ||
| 662 | * @see #setOrientation | ||
| 663 | */ | ||
| 664 | public int getOrientation() { | ||
| 665 | return orientation; | ||
| 666 | } | ||
| 667 | |||
| 668 | |||
| 669 | /** | ||
| 670 | * Sets the value of the <code>continuousLayout</code> property, | ||
| 671 | * which must be <code>true</code> for the child components | ||
| 672 | * to be continuously | ||
| 673 | * redisplayed and laid out during user intervention. | ||
| 674 | * The default value of this property is look and feel dependent. | ||
| 675 | * Some look and feels might not support continuous layout; | ||
| 676 | * they will ignore this property. | ||
| 677 | * | ||
| 678 | * @param newContinuousLayout <code>true</code> if the components | ||
| 679 | * should continuously be redrawn as the divider changes position | ||
| 680 | * @beaninfo | ||
| 681 | * bound: true | ||
| 682 | * description: Whether the child components are | ||
| 683 | * continuously redisplayed and laid out during | ||
| 684 | * user intervention. | ||
| 685 | * @see #isContinuousLayout | ||
| 686 | */ | ||
| 687 | public void setContinuousLayout(boolean newContinuousLayout) { | ||
| 688 | boolean oldCD = continuousLayout; | ||
| 689 | |||
| 690 | continuousLayout = newContinuousLayout; | ||
| 691 | firePropertyChange(CONTINUOUS_LAYOUT_PROPERTY, oldCD, | ||
| 692 | newContinuousLayout); | ||
| 693 | } | ||
| 694 | |||
| 695 | |||
| 696 | /** | ||
| 697 | * Gets the <code>continuousLayout</code> property. | ||
| 698 | * | ||
| 699 | * @return the value of the <code>continuousLayout</code> property | ||
| 700 | * @see #setContinuousLayout | ||
| 701 | */ | ||
| 702 | public boolean isContinuousLayout() { | ||
| 703 | return continuousLayout; | ||
| 704 | } | ||
| 705 | |||
| 706 | /** | ||
| 707 | * Specifies how to distribute extra space when the size of the split pane | ||
| 708 | * changes. A value of 0, the default, | ||
| 709 | * indicates the right/bottom component gets all the extra space (the | ||
| 710 | * left/top component acts fixed), where as a value of 1 specifies the | ||
| 711 | * left/top component gets all the extra space (the right/bottom component | ||
| 712 | * acts fixed). Specifically, the left/top component gets (weight * diff) | ||
| 713 | * extra space and the right/bottom component gets (1 - weight) * diff | ||
| 714 | * extra space. | ||
| 715 | * | ||
| 716 | * @param value as described above | ||
| 717 | * @exception IllegalArgumentException if <code>value</code> is < 0 or > 1 | ||
| 718 | * @since 1.3 | ||
| 719 | * @beaninfo | ||
| 720 | * bound: true | ||
| 721 | * description: Specifies how to distribute extra space when the split pane | ||
| 722 | * resizes. | ||
| 723 | */ | ||
| 724 | public void setResizeWeight(double value) { | ||
| 725 | if (value < 0 || value > 1) { | ||
| 726 | throw new IllegalArgumentException("JSplitPane weight must be between 0 and 1"); | ||
| 727 | } | ||
| 728 | double oldWeight = resizeWeight; | ||
| 729 | |||
| 730 | resizeWeight = value; | ||
| 731 | firePropertyChange(RESIZE_WEIGHT_PROPERTY, oldWeight, value); | ||
| 732 | } | ||
| 733 | |||
| 734 | /** | ||
| 735 | * Returns the number that determines how extra space is distributed. | ||
| 736 | * @return how extra space is to be distributed on a resize of the | ||
| 737 | * split pane | ||
| 738 | * @since 1.3 | ||
| 739 | */ | ||
| 740 | public double getResizeWeight() { | ||
| 741 | return resizeWeight; | ||
| 742 | } | ||
| 743 | |||
| 744 | /** | ||
| 745 | * Lays out the <code>JSplitPane</code> layout based on the preferred size | ||
| 746 | * of the children components. This will likely result in changing | ||
| 747 | * the divider location. | ||
| 748 | */ | ||
| 749 | public void resetToPreferredSizes() { | ||
| 750 | SplitPaneUI ui = getUI(); | ||
| 751 | |||
| 752 | if (ui != null) { | ||
| 753 | ui.resetToPreferredSizes(this); | ||
| 754 | } | ||
| 755 | } | ||
| 756 | |||
| 757 | |||
| 758 | /** | ||
| 759 | * Sets the divider location as a percentage of the | ||
| 760 | * <code>JSplitPane</code>'s size. | ||
| 761 | * <p> | ||
| 762 | * This method is implemented in terms of | ||
| 763 | * <code>setDividerLocation(int)</code>. | ||
| 764 | * This method immediately changes the size of the split pane based on | ||
| 765 | * its current size. If the split pane is not correctly realized and on | ||
| 766 | * screen, this method will have no effect (new divider location will | ||
| 767 | * become (current size * proportionalLocation) which is 0). | ||
| 768 | * | ||
| 769 | * @param proportionalLocation a double-precision floating point value | ||
| 770 | * that specifies a percentage, from zero (top/left) to 1.0 | ||
| 771 | * (bottom/right) | ||
| 772 | * @exception IllegalArgumentException if the specified location is < 0 | ||
| 773 | * or > 1.0 | ||
| 774 | * @beaninfo | ||
| 775 | * description: The location of the divider. | ||
| 776 | */ | ||
| 777 | public void setDividerLocation(double proportionalLocation) { | ||
| 778 | if (proportionalLocation < 0.0 || | ||
| 779 | proportionalLocation > 1.0) { | ||
| 780 | throw new IllegalArgumentException("proportional location must " + | ||
| 781 | "be between 0.0 and 1.0."); | ||
| 782 | } | ||
| 783 | if (getOrientation() == VERTICAL_SPLIT) { | ||
| 784 | setDividerLocation((int)((double)(getHeight() - getDividerSize()) * | ||
| 785 | proportionalLocation)); | ||
| 786 | } else { | ||
| 787 | setDividerLocation((int)((double)(getWidth() - getDividerSize()) * | ||
| 788 | proportionalLocation)); | ||
| 789 | } | ||
| 790 | } | ||
| 791 | |||
| 792 | |||
| 793 | /** | ||
| 794 | * Sets the location of the divider. This is passed off to the | ||
| 795 | * look and feel implementation, and then listeners are notified. A value | ||
| 796 | * less than 0 implies the divider should be reset to a value that | ||
| 797 | * attempts to honor the preferred size of the left/top component. | ||
| 798 | * After notifying the listeners, the last divider location is updated, | ||
| 799 | * via <code>setLastDividerLocation</code>. | ||
| 800 | * | ||
| 801 | * @param location an int specifying a UI-specific value (typically a | ||
| 802 | * pixel count) | ||
| 803 | * @beaninfo | ||
| 804 | * bound: true | ||
| 805 | * description: The location of the divider. | ||
| 806 | */ | ||
| 807 | public void setDividerLocation(int location) { | ||
| 808 | int oldValue = dividerLocation; | ||
| 809 | |||
| 810 | dividerLocation = location; | ||
| 811 | |||
| 812 | // Notify UI. | ||
| 813 | SplitPaneUI ui = getUI(); | ||
| 814 | |||
| 815 | if (ui != null) { | ||
| 816 | ui.setDividerLocation(this, location); | ||
| 817 | } | ||
| 818 | |||
| 819 | // Then listeners | ||
| 820 | firePropertyChange(DIVIDER_LOCATION_PROPERTY, oldValue, location); | ||
| 821 | |||
| 822 | // And update the last divider location. | ||
| 823 | setLastDividerLocation(oldValue); | ||
| 824 | } | ||
| 825 | |||
| 826 | |||
| 827 | /** | ||
| 828 | * Returns the last value passed to <code>setDividerLocation</code>. | ||
| 829 | * The value returned from this method may differ from the actual | ||
| 830 | * divider location (if <code>setDividerLocation</code> was passed a | ||
| 831 | * value bigger than the curent size). | ||
| 832 | * | ||
| 833 | * @return an integer specifying the location of the divider | ||
| 834 | */ | ||
| 835 | public int getDividerLocation() { | ||
| 836 | return dividerLocation; | ||
| 837 | } | ||
| 838 | |||
| 839 | |||
| 840 | /** | ||
| 841 | * Returns the minimum location of the divider from the look and feel | ||
| 842 | * implementation. | ||
| 843 | * | ||
| 844 | * @return an integer specifying a UI-specific value for the minimum | ||
| 845 | * location (typically a pixel count); or -1 if the UI is | ||
| 846 | * <code>null</code> | ||
| 847 | * @beaninfo | ||
| 848 | * description: The minimum location of the divider from the L&F. | ||
| 849 | */ | ||
| 850 | public int getMinimumDividerLocation() { | ||
| 851 | SplitPaneUI ui = getUI(); | ||
| 852 | |||
| 853 | if (ui != null) { | ||
| 854 | return ui.getMinimumDividerLocation(this); | ||
| 855 | } | ||
| 856 | return -1; | ||
| 857 | } | ||
| 858 | |||
| 859 | |||
| 860 | /** | ||
| 861 | * Returns the maximum location of the divider from the look and feel | ||
| 862 | * implementation. | ||
| 863 | * | ||
| 864 | * @return an integer specifying a UI-specific value for the maximum | ||
| 865 | * location (typically a pixel count); or -1 if the UI is | ||
| 866 | * <code>null</code> | ||
| 867 | */ | ||
| 868 | public int getMaximumDividerLocation() { | ||
| 869 | SplitPaneUI ui = getUI(); | ||
| 870 | |||
| 871 | if (ui != null) { | ||
| 872 | return ui.getMaximumDividerLocation(this); | ||
| 873 | } | ||
| 874 | return -1; | ||
| 875 | } | ||
| 876 | |||
| 877 | |||
| 878 | /** | ||
| 879 | * Removes the child component, <code>component</code> from the | ||
| 880 | * pane. Resets the <code>leftComponent</code> or | ||
| 881 | * <code>rightComponent</code> instance variable, as necessary. | ||
| 882 | * | ||
| 883 | * @param component the <code>Component</code> to remove | ||
| 884 | */ | ||
| 885 | public void remove(Component component) { | ||
| 886 | if (component == leftComponent) { | ||
| 887 | leftComponent = null; | ||
| 888 | } else if (component == rightComponent) { | ||
| 889 | rightComponent = null; | ||
| 890 | } | ||
| 891 | super.remove(component); | ||
| 892 | |||
| 893 | // Update the JSplitPane on the screen | ||
| 894 | revalidate(); | ||
| 895 | repaint(); | ||
| 896 | } | ||
| 897 | |||
| 898 | |||
| 899 | /** | ||
| 900 | * Removes the <code>Component</code> at the specified index. | ||
| 901 | * Updates the <code>leftComponent</code> and <code>rightComponent</code> | ||
| 902 | * instance variables as necessary, and then messages super. | ||
| 903 | * | ||
| 904 | * @param index an integer specifying the component to remove, where | ||
| 905 | * 1 specifies the left/top component and 2 specifies the | ||
| 906 | * bottom/right component | ||
| 907 | */ | ||
| 908 | public void remove(int index) { | ||
| 909 | Component comp = getComponent(index); | ||
| 910 | |||
| 911 | if (comp == leftComponent) { | ||
| 912 | leftComponent = null; | ||
| 913 | } else if (comp == rightComponent) { | ||
| 914 | rightComponent = null; | ||
| 915 | } | ||
| 916 | super.remove(index); | ||
| 917 | |||
| 918 | // Update the JSplitPane on the screen | ||
| 919 | revalidate(); | ||
| 920 | repaint(); | ||
| 921 | } | ||
| 922 | |||
| 923 | |||
| 924 | /** | ||
| 925 | * Removes all the child components from the split pane. Resets the | ||
| 926 | * <code>leftComonent</code> and <code>rightComponent</code> | ||
| 927 | * instance variables. | ||
| 928 | */ | ||
| 929 | public void removeAll() { | ||
| 930 | leftComponent = rightComponent = null; | ||
| 931 | super.removeAll(); | ||
| 932 | |||
| 933 | // Update the JSplitPane on the screen | ||
| 934 | revalidate(); | ||
| 935 | repaint(); | ||
| 936 | } | ||
| 937 | |||
| 938 | |||
| 939 | /** | ||
| 940 | * Returns true, so that calls to <code>revalidate</code> | ||
| 941 | * on any descendant of this <code>JSplitPane</code> | ||
| 942 | * will cause a request to be queued that | ||
| 943 | * will validate the <code>JSplitPane</code> and all its descendants. | ||
| 944 | * | ||
| 945 | * @return true | ||
| 946 | * @see JComponent#revalidate | ||
| 947 | * @see java.awt.Container#isValidateRoot | ||
| 948 | * | ||
| 949 | * @beaninfo | ||
| 950 | * hidden: true | ||
| 951 | */ | ||
| 952 | @Override | ||
| 953 | public boolean isValidateRoot() { | ||
| 954 | return true; | ||
| 955 | } | ||
| 956 | |||
| 957 | |||
| 958 | /** | ||
| 959 | * Adds the specified component to this split pane. | ||
| 960 | * If <code>constraints</code> identifies the left/top or | ||
| 961 | * right/bottom child component, and a component with that identifier | ||
| 962 | * was previously added, it will be removed and then <code>comp</code> | ||
| 963 | * will be added in its place. If <code>constraints</code> is not | ||
| 964 | * one of the known identifiers the layout manager may throw an | ||
| 965 | * <code>IllegalArgumentException</code>. | ||
| 966 | * <p> | ||
| 967 | * The possible constraints objects (Strings) are: | ||
| 968 | * <ul> | ||
| 969 | * <li>JSplitPane.TOP | ||
| 970 | * <li>JSplitPane.LEFT | ||
| 971 | * <li>JSplitPane.BOTTOM | ||
| 972 | * <li>JSplitPane.RIGHT | ||
| 973 | * </ul> | ||
| 974 | * If the <code>constraints</code> object is <code>null</code>, | ||
| 975 | * the component is added in the | ||
| 976 | * first available position (left/top if open, else right/bottom). | ||
| 977 | * | ||
| 978 | * @param comp the component to add | ||
| 979 | * @param constraints an <code>Object</code> specifying the | ||
| 980 | * layout constraints | ||
| 981 | * (position) for this component | ||
| 982 | * @param index an integer specifying the index in the container's | ||
| 983 | * list. | ||
| 984 | * @exception IllegalArgumentException if the <code>constraints</code> | ||
| 985 | * object does not match an existing component | ||
| 986 | * @see java.awt.Container#addImpl(Component, Object, int) | ||
| 987 | */ | ||
| 988 | protected void addImpl(Component comp, Object constraints, int index) | ||
| 989 | { | ||
| 990 | Component toRemove; | ||
| 991 | |||
| 992 | if (constraints != null && !(constraints instanceof String)) { | ||
| 993 | throw new IllegalArgumentException("cannot add to layout: " + | ||
| 994 | "constraint must be a string " + | ||
| 995 | "(or null)"); | ||
| 996 | } | ||
| 997 | |||
| 998 | /* If the constraints are null and the left/right component is | ||
| 999 | invalid, add it at the left/right component. */ | ||
| 1000 | if (constraints == null) { | ||
| 1001 | if (getLeftComponent() == null) { | ||
| 1002 | constraints = JSplitPane.LEFT; | ||
| 1003 | } else if (getRightComponent() == null) { | ||
| 1004 | constraints = JSplitPane.RIGHT; | ||
| 1005 | } | ||
| 1006 | } | ||
| 1007 | |||
| 1008 | /* Find the Component that already exists and remove it. */ | ||
| 1009 | if (constraints != null && (constraints.equals(JSplitPane.LEFT) || | ||
| 1010 | constraints.equals(JSplitPane.TOP))) { | ||
| 1011 | toRemove = getLeftComponent(); | ||
| 1012 | if (toRemove != null) { | ||
| 1013 | remove(toRemove); | ||
| 1014 | } | ||
| 1015 | leftComponent = comp; | ||
| 1016 | index = -1; | ||
| 1017 | } else if (constraints != null && | ||
| 1018 | (constraints.equals(JSplitPane.RIGHT) || | ||
| 1019 | constraints.equals(JSplitPane.BOTTOM))) { | ||
| 1020 | toRemove = getRightComponent(); | ||
| 1021 | if (toRemove != null) { | ||
| 1022 | remove(toRemove); | ||
| 1023 | } | ||
| 1024 | rightComponent = comp; | ||
| 1025 | index = -1; | ||
| 1026 | } else if (constraints != null && | ||
| 1027 | constraints.equals(JSplitPane.DIVIDER)) { | ||
| 1028 | index = -1; | ||
| 1029 | } | ||
| 1030 | /* LayoutManager should raise for else condition here. */ | ||
| 1031 | |||
| 1032 | super.addImpl(comp, constraints, index); | ||
| 1033 | |||
| 1034 | // Update the JSplitPane on the screen | ||
| 1035 | revalidate(); | ||
| 1036 | repaint(); | ||
| 1037 | } | ||
| 1038 | |||
| 1039 | |||
| 1040 | /** | ||
| 1041 | * Subclassed to message the UI with <code>finishedPaintingChildren</code> | ||
| 1042 | * after super has been messaged, as well as painting the border. | ||
| 1043 | * | ||
| 1044 | * @param g the <code>Graphics</code> context within which to paint | ||
| 1045 | */ | ||
| 1046 | protected void paintChildren(Graphics g) { | ||
| 1047 | super.paintChildren(g); | ||
| 1048 | |||
| 1049 | SplitPaneUI ui = getUI(); | ||
| 1050 | |||
| 1051 | if (ui != null) { | ||
| 1052 | Graphics tempG = g.create(); | ||
| 1053 | ui.finishedPaintingChildren(this, tempG); | ||
| 1054 | tempG.dispose(); | ||
| 1055 | } | ||
| 1056 | } | ||
| 1057 | |||
| 1058 | |||
| 1059 | /** | ||
| 1060 | * See <code>readObject</code> and <code>writeObject</code> in | ||
| 1061 | * <code>JComponent</code> for more | ||
| 1062 | * information about serialization in Swing. | ||
| 1063 | */ | ||
| 1064 | private void writeObject(ObjectOutputStream s) throws IOException { | ||
| 1065 | s.defaultWriteObject(); | ||
| 1066 | if (getUIClassID().equals(uiClassID)) { | ||
| 1067 | byte count = JComponent.getWriteObjCounter(this); | ||
| 1068 | JComponent.setWriteObjCounter(this, --count); | ||
| 1069 | if (count == 0 && ui != null) { | ||
| 1070 | ui.installUI(this); | ||
| 1071 | } | ||
| 1072 | } | ||
| 1073 | } | ||
| 1074 | |||
| 1075 | void setUIProperty(String propertyName, Object value) { | ||
| 1076 | if (propertyName == "dividerSize") { | ||
| 1077 | if (!dividerSizeSet) { | ||
| 1078 | setDividerSize(((Number)value).intValue()); | ||
| 1079 | dividerSizeSet = false; | ||
| 1080 | } | ||
| 1081 | } else if (propertyName == "oneTouchExpandable") { | ||
| 1082 | if (!oneTouchExpandableSet) { | ||
| 1083 | setOneTouchExpandable(((Boolean)value).booleanValue()); | ||
| 1084 | oneTouchExpandableSet = false; | ||
| 1085 | } | ||
| 1086 | } else { | ||
| 1087 | super.setUIProperty(propertyName, value); | ||
| 1088 | } | ||
| 1089 | } | ||
| 1090 | |||
| 1091 | |||
| 1092 | /** | ||
| 1093 | * Returns a string representation of this <code>JSplitPane</code>. | ||
| 1094 | * This method | ||
| 1095 | * is intended to be used only for debugging purposes, and the | ||
| 1096 | * content and format of the returned string may vary between | ||
| 1097 | * implementations. The returned string may be empty but may not | ||
| 1098 | * be <code>null</code>. | ||
| 1099 | * | ||
| 1100 | * @return a string representation of this <code>JSplitPane</code>. | ||
| 1101 | */ | ||
| 1102 | protected String paramString() { | ||
| 1103 | String orientationString = (orientation == HORIZONTAL_SPLIT ? | ||
| 1104 | "HORIZONTAL_SPLIT" : "VERTICAL_SPLIT"); | ||
| 1105 | String continuousLayoutString = (continuousLayout ? | ||
| 1106 | "true" : "false"); | ||
| 1107 | String oneTouchExpandableString = (oneTouchExpandable ? | ||
| 1108 | "true" : "false"); | ||
| 1109 | |||
| 1110 | return super.paramString() + | ||
| 1111 | ",continuousLayout=" + continuousLayoutString + | ||
| 1112 | ",dividerSize=" + dividerSize + | ||
| 1113 | ",lastDividerLocation=" + lastDividerLocation + | ||
| 1114 | ",oneTouchExpandable=" + oneTouchExpandableString + | ||
| 1115 | ",orientation=" + orientationString; | ||
| 1116 | } | ||
| 1117 | |||
| 1118 | |||
| 1119 | |||
| 1120 | /////////////////////////// | ||
| 1121 | // Accessibility support // | ||
| 1122 | /////////////////////////// | ||
| 1123 | |||
| 1124 | |||
| 1125 | /** | ||
| 1126 | * Gets the AccessibleContext associated with this JSplitPane. | ||
| 1127 | * For split panes, the AccessibleContext takes the form of an | ||
| 1128 | * AccessibleJSplitPane. | ||
| 1129 | * A new AccessibleJSplitPane instance is created if necessary. | ||
| 1130 | * | ||
| 1131 | * @return an AccessibleJSplitPane that serves as the | ||
| 1132 | * AccessibleContext of this JSplitPane | ||
| 1133 | * @beaninfo | ||
| 1134 | * expert: true | ||
| 1135 | * description: The AccessibleContext associated with this SplitPane. | ||
| 1136 | */ | ||
| 1137 | public AccessibleContext getAccessibleContext() { | ||
| 1138 | if (accessibleContext == null) { | ||
| 1139 | accessibleContext = new AccessibleJSplitPane(); | ||
| 1140 | } | ||
| 1141 | return accessibleContext; | ||
| 1142 | } | ||
| 1143 | |||
| 1144 | |||
| 1145 | /** | ||
| 1146 | * This class implements accessibility support for the | ||
| 1147 | * <code>JSplitPane</code> class. It provides an implementation of the | ||
| 1148 | * Java Accessibility API appropriate to split pane user-interface elements. | ||
| 1149 | * <p> | ||
| 1150 | * <strong>Warning:</strong> | ||
| 1151 | * Serialized objects of this class will not be compatible with | ||
| 1152 | * future Swing releases. The current serialization support is | ||
| 1153 | * appropriate for short term storage or RMI between applications running | ||
| 1154 | * the same version of Swing. As of 1.4, support for long term storage | ||
| 1155 | * of all JavaBeans<sup><font size="-2">TM</font></sup> | ||
| 1156 | * has been added to the <code>java.beans</code> package. | ||
| 1157 | * Please see {@link java.beans.XMLEncoder}. | ||
| 1158 | */ | ||
| 1159 | protected class AccessibleJSplitPane extends AccessibleJComponent | ||
| 1160 | implements AccessibleValue { | ||
| 1161 | /** | ||
| 1162 | * Gets the state set of this object. | ||
| 1163 | * | ||
| 1164 | * @return an instance of AccessibleState containing the current state | ||
| 1165 | * of the object | ||
| 1166 | * @see AccessibleState | ||
| 1167 | */ | ||
| 1168 | public AccessibleStateSet getAccessibleStateSet() { | ||
| 1169 | AccessibleStateSet states = super.getAccessibleStateSet(); | ||
| 1170 | // FIXME: [[[WDW - Should also add BUSY if this implements | ||
| 1171 | // Adjustable at some point. If this happens, we probably | ||
| 1172 | // should also add actions.]]] | ||
| 1173 | if (getOrientation() == VERTICAL_SPLIT) { | ||
| 1174 | states.add(AccessibleState.VERTICAL); | ||
| 1175 | } else { | ||
| 1176 | states.add(AccessibleState.HORIZONTAL); | ||
| 1177 | } | ||
| 1178 | return states; | ||
| 1179 | } | ||
| 1180 | |||
| 1181 | |||
| 1182 | /** | ||
| 1183 | * Get the AccessibleValue associated with this object. In the | ||
| 1184 | * implementation of the Java Accessibility API for this class, | ||
| 1185 | * return this object, which is responsible for implementing the | ||
| 1186 | * AccessibleValue interface on behalf of itself. | ||
| 1187 | * | ||
| 1188 | * @return this object | ||
| 1189 | */ | ||
| 1190 | public AccessibleValue getAccessibleValue() { | ||
| 1191 | return this; | ||
| 1192 | } | ||
| 1193 | |||
| 1194 | |||
| 1195 | /** | ||
| 1196 | * Gets the accessible value of this object. | ||
| 1197 | * | ||
| 1198 | * @return a localized String describing the value of this object | ||
| 1199 | */ | ||
| 1200 | public Number getCurrentAccessibleValue() { | ||
| 1201 | return Integer.valueOf(getDividerLocation()); | ||
| 1202 | } | ||
| 1203 | |||
| 1204 | |||
| 1205 | /** | ||
| 1206 | * Sets the value of this object as a Number. | ||
| 1207 | * | ||
| 1208 | * @return True if the value was set. | ||
| 1209 | */ | ||
| 1210 | public boolean setCurrentAccessibleValue(Number n) { | ||
| 1211 | // TIGER - 4422535 | ||
| 1212 | if (n == null) { | ||
| 1213 | return false; | ||
| 1214 | } | ||
| 1215 | setDividerLocation(n.intValue()); | ||
| 1216 | return true; | ||
| 1217 | } | ||
| 1218 | |||
| 1219 | |||
| 1220 | /** | ||
| 1221 | * Gets the minimum accessible value of this object. | ||
| 1222 | * | ||
| 1223 | * @return The minimum value of this object. | ||
| 1224 | */ | ||
| 1225 | public Number getMinimumAccessibleValue() { | ||
| 1226 | return Integer.valueOf(getUI().getMinimumDividerLocation( | ||
| 1227 | JSplitPane.this)); | ||
| 1228 | } | ||
| 1229 | |||
| 1230 | |||
| 1231 | /** | ||
| 1232 | * Gets the maximum accessible value of this object. | ||
| 1233 | * | ||
| 1234 | * @return The maximum value of this object. | ||
| 1235 | */ | ||
| 1236 | public Number getMaximumAccessibleValue() { | ||
| 1237 | return Integer.valueOf(getUI().getMaximumDividerLocation( | ||
| 1238 | JSplitPane.this)); | ||
| 1239 | } | ||
| 1240 | |||
| 1241 | |||
| 1242 | /** | ||
| 1243 | * Gets the role of this object. | ||
| 1244 | * | ||
| 1245 | * @return an instance of AccessibleRole describing the role of | ||
| 1246 | * the object | ||
| 1247 | * @see AccessibleRole | ||
| 1248 | */ | ||
| 1249 | public AccessibleRole getAccessibleRole() { | ||
| 1250 | return AccessibleRole.SPLIT_PANE; | ||
| 1251 | } | ||
| 1252 | } // inner class AccessibleJSplitPane | ||
| 1253 | } | ||