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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2006, 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.plaf.basic; | ||
| 29 | |||
| 30 | |||
| 31 | |||
| 32 | import java.awt.*; | ||
| 33 | import java.awt.event.*; | ||
| 34 | import javax.swing.*; | ||
| 35 | import javax.swing.event.*; | ||
| 36 | import javax.swing.plaf.*; | ||
| 37 | import javax.swing.border.Border; | ||
| 38 | import java.beans.*; | ||
| 39 | import sun.swing.DefaultLookup; | ||
| 40 | |||
| 41 | |||
| 42 | |||
| 43 | /** | ||
| 44 | * Divider used by BasicSplitPaneUI. Subclassers may wish to override | ||
| 45 | * paint to do something more interesting. | ||
| 46 | * The border effect is drawn in BasicSplitPaneUI, so if you don't like | ||
| 47 | * that border, reset it there. | ||
| 48 | * To conditionally drag from certain areas subclass mousePressed and | ||
| 49 | * call super when you wish the dragging to begin. | ||
| 50 | * <p> | ||
| 51 | * <strong>Warning:</strong> | ||
| 52 | * Serialized objects of this class will not be compatible with | ||
| 53 | * future Swing releases. The current serialization support is | ||
| 54 | * appropriate for short term storage or RMI between applications running | ||
| 55 | * the same version of Swing. As of 1.4, support for long term storage | ||
| 56 | * of all JavaBeans<sup><font size="-2">TM</font></sup> | ||
| 57 | * has been added to the <code>java.beans</code> package. | ||
| 58 | * Please see {@link java.beans.XMLEncoder}. | ||
| 59 | * | ||
| 60 | * @author Scott Violet | ||
| 61 | */ | ||
| 62 | public class BasicSplitPaneDivider extends Container | ||
| 63 | implements PropertyChangeListener | ||
| 64 | { | ||
| 65 | /** | ||
| 66 | * Width or height of the divider based on orientation | ||
| 67 | * BasicSplitPaneUI adds two to this. | ||
| 68 | */ | ||
| 69 | protected static final int ONE_TOUCH_SIZE = 6; | ||
| 70 | protected static final int ONE_TOUCH_OFFSET = 2; | ||
| 71 | |||
| 72 | /** | ||
| 73 | * Handles mouse dragging message to do the actual dragging. | ||
| 74 | */ | ||
| 75 | protected DragController dragger; | ||
| 76 | |||
| 77 | /** | ||
| 78 | * UI this instance was created from. | ||
| 79 | */ | ||
| 80 | protected BasicSplitPaneUI splitPaneUI; | ||
| 81 | |||
| 82 | /** | ||
| 83 | * Size of the divider. | ||
| 84 | */ | ||
| 85 | protected int dividerSize = 0; // default - SET TO 0??? | ||
| 86 | |||
| 87 | /** | ||
| 88 | * Divider that is used for noncontinuous layout mode. | ||
| 89 | */ | ||
| 90 | protected Component hiddenDivider; | ||
| 91 | |||
| 92 | /** | ||
| 93 | * JSplitPane the receiver is contained in. | ||
| 94 | */ | ||
| 95 | protected JSplitPane splitPane; | ||
| 96 | |||
| 97 | /** | ||
| 98 | * Handles mouse events from both this class, and the split pane. | ||
| 99 | * Mouse events are handled for the splitpane since you want to be able | ||
| 100 | * to drag when clicking on the border of the divider, which is not | ||
| 101 | * drawn by the divider. | ||
| 102 | */ | ||
| 103 | protected MouseHandler mouseHandler; | ||
| 104 | |||
| 105 | /** | ||
| 106 | * Orientation of the JSplitPane. | ||
| 107 | */ | ||
| 108 | protected int orientation; | ||
| 109 | |||
| 110 | /** | ||
| 111 | * Button for quickly toggling the left component. | ||
| 112 | */ | ||
| 113 | protected JButton leftButton; | ||
| 114 | |||
| 115 | /** | ||
| 116 | * Button for quickly toggling the right component. | ||
| 117 | */ | ||
| 118 | protected JButton rightButton; | ||
| 119 | |||
| 120 | /** Border. */ | ||
| 121 | private Border border; | ||
| 122 | |||
| 123 | /** | ||
| 124 | * Is the mouse over the divider? | ||
| 125 | */ | ||
| 126 | private boolean mouseOver; | ||
| 127 | |||
| 128 | private int oneTouchSize; | ||
| 129 | private int oneTouchOffset; | ||
| 130 | |||
| 131 | /** | ||
| 132 | * If true the one touch buttons are centered on the divider. | ||
| 133 | */ | ||
| 134 | private boolean centerOneTouchButtons; | ||
| 135 | |||
| 136 | |||
| 137 | /** | ||
| 138 | * Creates an instance of BasicSplitPaneDivider. Registers this | ||
| 139 | * instance for mouse events and mouse dragged events. | ||
| 140 | */ | ||
| 141 | public BasicSplitPaneDivider(BasicSplitPaneUI ui) { | ||
| 142 | oneTouchSize = DefaultLookup.getInt(ui.getSplitPane(), ui, | ||
| 143 | "SplitPane.oneTouchButtonSize", ONE_TOUCH_SIZE); | ||
| 144 | oneTouchOffset = DefaultLookup.getInt(ui.getSplitPane(), ui, | ||
| 145 | "SplitPane.oneTouchButtonOffset", ONE_TOUCH_OFFSET); | ||
| 146 | centerOneTouchButtons = DefaultLookup.getBoolean(ui.getSplitPane(), | ||
| 147 | ui, "SplitPane.centerOneTouchButtons", true); | ||
| 148 | setLayout(new DividerLayout()); | ||
| 149 | setBasicSplitPaneUI(ui); | ||
| 150 | orientation = splitPane.getOrientation(); | ||
| 151 | setCursor((orientation == JSplitPane.HORIZONTAL_SPLIT) ? | ||
| 152 | Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR) : | ||
| 153 | Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR)); | ||
| 154 | setBackground(UIManager.getColor("SplitPane.background")); | ||
| 155 | } | ||
| 156 | |||
| 157 | private void revalidateSplitPane() { | ||
| 158 | invalidate(); | ||
| 159 | if (splitPane != null) { | ||
| 160 | splitPane.revalidate(); | ||
| 161 | } | ||
| 162 | } | ||
| 163 | |||
| 164 | /** | ||
| 165 | * Sets the SplitPaneUI that is using the receiver. | ||
| 166 | */ | ||
| 167 | public void setBasicSplitPaneUI(BasicSplitPaneUI newUI) { | ||
| 168 | if (splitPane != null) { | ||
| 169 | splitPane.removePropertyChangeListener(this); | ||
| 170 | if (mouseHandler != null) { | ||
| 171 | splitPane.removeMouseListener(mouseHandler); | ||
| 172 | splitPane.removeMouseMotionListener(mouseHandler); | ||
| 173 | removeMouseListener(mouseHandler); | ||
| 174 | removeMouseMotionListener(mouseHandler); | ||
| 175 | mouseHandler = null; | ||
| 176 | } | ||
| 177 | } | ||
| 178 | splitPaneUI = newUI; | ||
| 179 | if (newUI != null) { | ||
| 180 | splitPane = newUI.getSplitPane(); | ||
| 181 | if (splitPane != null) { | ||
| 182 | if (mouseHandler == null) mouseHandler = new MouseHandler(); | ||
| 183 | splitPane.addMouseListener(mouseHandler); | ||
| 184 | splitPane.addMouseMotionListener(mouseHandler); | ||
| 185 | addMouseListener(mouseHandler); | ||
| 186 | addMouseMotionListener(mouseHandler); | ||
| 187 | splitPane.addPropertyChangeListener(this); | ||
| 188 | if (splitPane.isOneTouchExpandable()) { | ||
| 189 | oneTouchExpandableChanged(); | ||
| 190 | } | ||
| 191 | } | ||
| 192 | } | ||
| 193 | else { | ||
| 194 | splitPane = null; | ||
| 195 | } | ||
| 196 | } | ||
| 197 | |||
| 198 | |||
| 199 | /** | ||
| 200 | * Returns the <code>SplitPaneUI</code> the receiver is currently | ||
| 201 | * in. | ||
| 202 | */ | ||
| 203 | public BasicSplitPaneUI getBasicSplitPaneUI() { | ||
| 204 | return splitPaneUI; | ||
| 205 | } | ||
| 206 | |||
| 207 | |||
| 208 | /** | ||
| 209 | * Sets the size of the divider to <code>newSize</code>. That is | ||
| 210 | * the width if the splitpane is <code>HORIZONTAL_SPLIT</code>, or | ||
| 211 | * the height of <code>VERTICAL_SPLIT</code>. | ||
| 212 | */ | ||
| 213 | public void setDividerSize(int newSize) { | ||
| 214 | dividerSize = newSize; | ||
| 215 | } | ||
| 216 | |||
| 217 | |||
| 218 | /** | ||
| 219 | * Returns the size of the divider, that is the width if the splitpane | ||
| 220 | * is HORIZONTAL_SPLIT, or the height of VERTICAL_SPLIT. | ||
| 221 | */ | ||
| 222 | public int getDividerSize() { | ||
| 223 | return dividerSize; | ||
| 224 | } | ||
| 225 | |||
| 226 | |||
| 227 | /** | ||
| 228 | * Sets the border of this component. | ||
| 229 | * @since 1.3 | ||
| 230 | */ | ||
| 231 | public void setBorder(Border border) { | ||
| 232 | Border oldBorder = this.border; | ||
| 233 | |||
| 234 | this.border = border; | ||
| 235 | } | ||
| 236 | |||
| 237 | /** | ||
| 238 | * Returns the border of this component or null if no border is | ||
| 239 | * currently set. | ||
| 240 | * | ||
| 241 | * @return the border object for this component | ||
| 242 | * @see #setBorder | ||
| 243 | * @since 1.3 | ||
| 244 | */ | ||
| 245 | public Border getBorder() { | ||
| 246 | return border; | ||
| 247 | } | ||
| 248 | |||
| 249 | /** | ||
| 250 | * If a border has been set on this component, returns the | ||
| 251 | * border's insets, else calls super.getInsets. | ||
| 252 | * | ||
| 253 | * @return the value of the insets property. | ||
| 254 | * @see #setBorder | ||
| 255 | */ | ||
| 256 | public Insets getInsets() { | ||
| 257 | Border border = getBorder(); | ||
| 258 | |||
| 259 | if (border != null) { | ||
| 260 | return border.getBorderInsets(this); | ||
| 261 | } | ||
| 262 | return super.getInsets(); | ||
| 263 | } | ||
| 264 | |||
| 265 | /** | ||
| 266 | * Sets whether or not the mouse is currently over the divider. | ||
| 267 | * | ||
| 268 | * @param mouseOver whether or not the mouse is currently over the divider | ||
| 269 | * @since 1.5 | ||
| 270 | */ | ||
| 271 | protected void setMouseOver(boolean mouseOver) { | ||
| 272 | this.mouseOver = mouseOver; | ||
| 273 | } | ||
| 274 | |||
| 275 | /** | ||
| 276 | * Returns whether or not the mouse is currently over the divider | ||
| 277 | * | ||
| 278 | * @return whether or not the mouse is currently over the divider | ||
| 279 | * @since 1.5 | ||
| 280 | */ | ||
| 281 | public boolean isMouseOver() { | ||
| 282 | return mouseOver; | ||
| 283 | } | ||
| 284 | |||
| 285 | /** | ||
| 286 | * Returns dividerSize x dividerSize | ||
| 287 | */ | ||
| 288 | public Dimension getPreferredSize() { | ||
| 289 | // Ideally this would return the size from the layout manager, | ||
| 290 | // but that could result in the layed out size being different from | ||
| 291 | // the dividerSize, which may break developers as well as | ||
| 292 | // BasicSplitPaneUI. | ||
| 293 | if (orientation == JSplitPane.HORIZONTAL_SPLIT) { | ||
| 294 | return new Dimension(getDividerSize(), 1); | ||
| 295 | } | ||
| 296 | return new Dimension(1, getDividerSize()); | ||
| 297 | } | ||
| 298 | |||
| 299 | /** | ||
| 300 | * Returns dividerSize x dividerSize | ||
| 301 | */ | ||
| 302 | public Dimension getMinimumSize() { | ||
| 303 | return getPreferredSize(); | ||
| 304 | } | ||
| 305 | |||
| 306 | |||
| 307 | /** | ||
| 308 | * Property change event, presumably from the JSplitPane, will message | ||
| 309 | * updateOrientation if necessary. | ||
| 310 | */ | ||
| 311 | public void propertyChange(PropertyChangeEvent e) { | ||
| 312 | if (e.getSource() == splitPane) { | ||
| 313 | if (e.getPropertyName() == JSplitPane.ORIENTATION_PROPERTY) { | ||
| 314 | orientation = splitPane.getOrientation(); | ||
| 315 | setCursor((orientation == JSplitPane.HORIZONTAL_SPLIT) ? | ||
| 316 | Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR) : | ||
| 317 | Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR)); | ||
| 318 | revalidateSplitPane(); | ||
| 319 | } | ||
| 320 | else if (e.getPropertyName() == JSplitPane. | ||
| 321 | ONE_TOUCH_EXPANDABLE_PROPERTY) { | ||
| 322 | oneTouchExpandableChanged(); | ||
| 323 | } | ||
| 324 | } | ||
| 325 | } | ||
| 326 | |||
| 327 | |||
| 328 | /** | ||
| 329 | * Paints the divider. | ||
| 330 | */ | ||
| 331 | public void paint(Graphics g) { | ||
| 332 | super.paint(g); | ||
| 333 | |||
| 334 | // Paint the border. | ||
| 335 | Border border = getBorder(); | ||
| 336 | |||
| 337 | if (border != null) { | ||
| 338 | Dimension size = getSize(); | ||
| 339 | |||
| 340 | border.paintBorder(this, g, 0, 0, size.width, size.height); | ||
| 341 | } | ||
| 342 | } | ||
| 343 | |||
| 344 | |||
| 345 | /** | ||
| 346 | * Messaged when the oneTouchExpandable value of the JSplitPane the | ||
| 347 | * receiver is contained in changes. Will create the | ||
| 348 | * <code>leftButton</code> and <code>rightButton</code> if they | ||
| 349 | * are null. invalidates the receiver as well. | ||
| 350 | */ | ||
| 351 | protected void oneTouchExpandableChanged() { | ||
| 352 | if (!DefaultLookup.getBoolean(splitPane, splitPaneUI, | ||
| 353 | "SplitPane.supportsOneTouchButtons", true)) { | ||
| 354 | // Look and feel doesn't want to support one touch buttons, bail. | ||
| 355 | return; | ||
| 356 | } | ||
| 357 | if (splitPane.isOneTouchExpandable() && | ||
| 358 | leftButton == null && | ||
| 359 | rightButton == null) { | ||
| 360 | /* Create the left button and add an action listener to | ||
| 361 | expand/collapse it. */ | ||
| 362 | leftButton = createLeftOneTouchButton(); | ||
| 363 | if (leftButton != null) | ||
| 364 | leftButton.addActionListener(new OneTouchActionHandler(true)); | ||
| 365 | |||
| 366 | |||
| 367 | /* Create the right button and add an action listener to | ||
| 368 | expand/collapse it. */ | ||
| 369 | rightButton = createRightOneTouchButton(); | ||
| 370 | if (rightButton != null) | ||
| 371 | rightButton.addActionListener(new OneTouchActionHandler | ||
| 372 | (false)); | ||
| 373 | |||
| 374 | if (leftButton != null && rightButton != null) { | ||
| 375 | add(leftButton); | ||
| 376 | add(rightButton); | ||
| 377 | } | ||
| 378 | } | ||
| 379 | revalidateSplitPane(); | ||
| 380 | } | ||
| 381 | |||
| 382 | |||
| 383 | /** | ||
| 384 | * Creates and return an instance of JButton that can be used to | ||
| 385 | * collapse the left component in the split pane. | ||
| 386 | */ | ||
| 387 | protected JButton createLeftOneTouchButton() { | ||
| 388 | JButton b = new JButton() { | ||
| 389 | public void setBorder(Border b) { | ||
| 390 | } | ||
| 391 | public void paint(Graphics g) { | ||
| 392 | if (splitPane != null) { | ||
| 393 | int[] xs = new int[3]; | ||
| 394 | int[] ys = new int[3]; | ||
| 395 | int blockSize; | ||
| 396 | |||
| 397 | // Fill the background first ... | ||
| 398 | g.setColor(this.getBackground()); | ||
| 399 | g.fillRect(0, 0, this.getWidth(), | ||
| 400 | this.getHeight()); | ||
| 401 | |||
| 402 | // ... then draw the arrow. | ||
| 403 | g.setColor(Color.black); | ||
| 404 | if (orientation == JSplitPane.VERTICAL_SPLIT) { | ||
| 405 | blockSize = Math.min(getHeight(), oneTouchSize); | ||
| 406 | xs[0] = blockSize; | ||
| 407 | xs[1] = 0; | ||
| 408 | xs[2] = blockSize << 1; | ||
| 409 | ys[0] = 0; | ||
| 410 | ys[1] = ys[2] = blockSize; | ||
| 411 | g.drawPolygon(xs, ys, 3); // Little trick to make the | ||
| 412 | // arrows of equal size | ||
| 413 | } | ||
| 414 | else { | ||
| 415 | blockSize = Math.min(getWidth(), oneTouchSize); | ||
| 416 | xs[0] = xs[2] = blockSize; | ||
| 417 | xs[1] = 0; | ||
| 418 | ys[0] = 0; | ||
| 419 | ys[1] = blockSize; | ||
| 420 | ys[2] = blockSize << 1; | ||
| 421 | } | ||
| 422 | g.fillPolygon(xs, ys, 3); | ||
| 423 | } | ||
| 424 | } | ||
| 425 | // Don't want the button to participate in focus traversable. | ||
| 426 | public boolean isFocusTraversable() { | ||
| 427 | return false; | ||
| 428 | } | ||
| 429 | }; | ||
| 430 | b.setMinimumSize(new Dimension(oneTouchSize, oneTouchSize)); | ||
| 431 | b.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)); | ||
| 432 | b.setFocusPainted(false); | ||
| 433 | b.setBorderPainted(false); | ||
| 434 | b.setRequestFocusEnabled(false); | ||
| 435 | return b; | ||
| 436 | } | ||
| 437 | |||
| 438 | |||
| 439 | /** | ||
| 440 | * Creates and return an instance of JButton that can be used to | ||
| 441 | * collapse the right component in the split pane. | ||
| 442 | */ | ||
| 443 | protected JButton createRightOneTouchButton() { | ||
| 444 | JButton b = new JButton() { | ||
| 445 | public void setBorder(Border border) { | ||
| 446 | } | ||
| 447 | public void paint(Graphics g) { | ||
| 448 | if (splitPane != null) { | ||
| 449 | int[] xs = new int[3]; | ||
| 450 | int[] ys = new int[3]; | ||
| 451 | int blockSize; | ||
| 452 | |||
| 453 | // Fill the background first ... | ||
| 454 | g.setColor(this.getBackground()); | ||
| 455 | g.fillRect(0, 0, this.getWidth(), | ||
| 456 | this.getHeight()); | ||
| 457 | |||
| 458 | // ... then draw the arrow. | ||
| 459 | if (orientation == JSplitPane.VERTICAL_SPLIT) { | ||
| 460 | blockSize = Math.min(getHeight(), oneTouchSize); | ||
| 461 | xs[0] = blockSize; | ||
| 462 | xs[1] = blockSize << 1; | ||
| 463 | xs[2] = 0; | ||
| 464 | ys[0] = blockSize; | ||
| 465 | ys[1] = ys[2] = 0; | ||
| 466 | } | ||
| 467 | else { | ||
| 468 | blockSize = Math.min(getWidth(), oneTouchSize); | ||
| 469 | xs[0] = xs[2] = 0; | ||
| 470 | xs[1] = blockSize; | ||
| 471 | ys[0] = 0; | ||
| 472 | ys[1] = blockSize; | ||
| 473 | ys[2] = blockSize << 1; | ||
| 474 | } | ||
| 475 | g.setColor(Color.black); | ||
| 476 | g.fillPolygon(xs, ys, 3); | ||
| 477 | } | ||
| 478 | } | ||
| 479 | // Don't want the button to participate in focus traversable. | ||
| 480 | public boolean isFocusTraversable() { | ||
| 481 | return false; | ||
| 482 | } | ||
| 483 | }; | ||
| 484 | b.setMinimumSize(new Dimension(oneTouchSize, oneTouchSize)); | ||
| 485 | b.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)); | ||
| 486 | b.setFocusPainted(false); | ||
| 487 | b.setBorderPainted(false); | ||
| 488 | b.setRequestFocusEnabled(false); | ||
| 489 | return b; | ||
| 490 | } | ||
| 491 | |||
| 492 | |||
| 493 | /** | ||
| 494 | * Message to prepare for dragging. This messages the BasicSplitPaneUI | ||
| 495 | * with startDragging. | ||
| 496 | */ | ||
| 497 | protected void prepareForDragging() { | ||
| 498 | splitPaneUI.startDragging(); | ||
| 499 | } | ||
| 500 | |||
| 501 | |||
| 502 | /** | ||
| 503 | * Messages the BasicSplitPaneUI with dragDividerTo that this instance | ||
| 504 | * is contained in. | ||
| 505 | */ | ||
| 506 | protected void dragDividerTo(int location) { | ||
| 507 | splitPaneUI.dragDividerTo(location); | ||
| 508 | } | ||
| 509 | |||
| 510 | |||
| 511 | /** | ||
| 512 | * Messages the BasicSplitPaneUI with finishDraggingTo that this instance | ||
| 513 | * is contained in. | ||
| 514 | */ | ||
| 515 | protected void finishDraggingTo(int location) { | ||
| 516 | splitPaneUI.finishDraggingTo(location); | ||
| 517 | } | ||
| 518 | |||
| 519 | |||
| 520 | /** | ||
| 521 | * MouseHandler is responsible for converting mouse events | ||
| 522 | * (released, dragged...) into the appropriate DragController | ||
| 523 | * methods. | ||
| 524 | * <p> | ||
| 525 | */ | ||
| 526 | protected class MouseHandler extends MouseAdapter | ||
| 527 | implements MouseMotionListener | ||
| 528 | { | ||
| 529 | /** | ||
| 530 | * Starts the dragging session by creating the appropriate instance | ||
| 531 | * of DragController. | ||
| 532 | */ | ||
| 533 | public void mousePressed(MouseEvent e) { | ||
| 534 | if ((e.getSource() == BasicSplitPaneDivider.this || | ||
| 535 | e.getSource() == splitPane) && | ||
| 536 | dragger == null &&splitPane.isEnabled()) { | ||
| 537 | Component newHiddenDivider = splitPaneUI. | ||
| 538 | getNonContinuousLayoutDivider(); | ||
| 539 | |||
| 540 | if (hiddenDivider != newHiddenDivider) { | ||
| 541 | if (hiddenDivider != null) { | ||
| 542 | hiddenDivider.removeMouseListener(this); | ||
| 543 | hiddenDivider.removeMouseMotionListener(this); | ||
| 544 | } | ||
| 545 | hiddenDivider = newHiddenDivider; | ||
| 546 | if (hiddenDivider != null) { | ||
| 547 | hiddenDivider.addMouseMotionListener(this); | ||
| 548 | hiddenDivider.addMouseListener(this); | ||
| 549 | } | ||
| 550 | } | ||
| 551 | if (splitPane.getLeftComponent() != null && | ||
| 552 | splitPane.getRightComponent() != null) { | ||
| 553 | if (orientation == JSplitPane.HORIZONTAL_SPLIT) { | ||
| 554 | dragger = new DragController(e); | ||
| 555 | } | ||
| 556 | else { | ||
| 557 | dragger = new VerticalDragController(e); | ||
| 558 | } | ||
| 559 | if (!dragger.isValid()) { | ||
| 560 | dragger = null; | ||
| 561 | } | ||
| 562 | else { | ||
| 563 | prepareForDragging(); | ||
| 564 | dragger.continueDrag(e); | ||
| 565 | } | ||
| 566 | } | ||
| 567 | e.consume(); | ||
| 568 | } | ||
| 569 | } | ||
| 570 | |||
| 571 | |||
| 572 | /** | ||
| 573 | * If dragger is not null it is messaged with completeDrag. | ||
| 574 | */ | ||
| 575 | public void mouseReleased(MouseEvent e) { | ||
| 576 | if (dragger != null) { | ||
| 577 | if (e.getSource() == splitPane) { | ||
| 578 | dragger.completeDrag(e.getX(), e.getY()); | ||
| 579 | } | ||
| 580 | else if (e.getSource() == BasicSplitPaneDivider.this) { | ||
| 581 | Point ourLoc = getLocation(); | ||
| 582 | |||
| 583 | dragger.completeDrag(e.getX() + ourLoc.x, | ||
| 584 | e.getY() + ourLoc.y); | ||
| 585 | } | ||
| 586 | else if (e.getSource() == hiddenDivider) { | ||
| 587 | Point hDividerLoc = hiddenDivider.getLocation(); | ||
| 588 | int ourX = e.getX() + hDividerLoc.x; | ||
| 589 | int ourY = e.getY() + hDividerLoc.y; | ||
| 590 | |||
| 591 | dragger.completeDrag(ourX, ourY); | ||
| 592 | } | ||
| 593 | dragger = null; | ||
| 594 | e.consume(); | ||
| 595 | } | ||
| 596 | } | ||
| 597 | |||
| 598 | |||
| 599 | // | ||
| 600 | // MouseMotionListener | ||
| 601 | // | ||
| 602 | |||
| 603 | /** | ||
| 604 | * If dragger is not null it is messaged with continueDrag. | ||
| 605 | */ | ||
| 606 | public void mouseDragged(MouseEvent e) { | ||
| 607 | if (dragger != null) { | ||
| 608 | if (e.getSource() == splitPane) { | ||
| 609 | dragger.continueDrag(e.getX(), e.getY()); | ||
| 610 | } | ||
| 611 | else if (e.getSource() == BasicSplitPaneDivider.this) { | ||
| 612 | Point ourLoc = getLocation(); | ||
| 613 | |||
| 614 | dragger.continueDrag(e.getX() + ourLoc.x, | ||
| 615 | e.getY() + ourLoc.y); | ||
| 616 | } | ||
| 617 | else if (e.getSource() == hiddenDivider) { | ||
| 618 | Point hDividerLoc = hiddenDivider.getLocation(); | ||
| 619 | int ourX = e.getX() + hDividerLoc.x; | ||
| 620 | int ourY = e.getY() + hDividerLoc.y; | ||
| 621 | |||
| 622 | dragger.continueDrag(ourX, ourY); | ||
| 623 | } | ||
| 624 | e.consume(); | ||
| 625 | } | ||
| 626 | } | ||
| 627 | |||
| 628 | |||
| 629 | /** | ||
| 630 | * Resets the cursor based on the orientation. | ||
| 631 | */ | ||
| 632 | public void mouseMoved(MouseEvent e) { | ||
| 633 | } | ||
| 634 | |||
| 635 | /** | ||
| 636 | * Invoked when the mouse enters a component. | ||
| 637 | * | ||
| 638 | * @param e MouseEvent describing the details of the enter event. | ||
| 639 | * @since 1.5 | ||
| 640 | */ | ||
| 641 | public void mouseEntered(MouseEvent e) { | ||
| 642 | if (e.getSource() == BasicSplitPaneDivider.this) { | ||
| 643 | setMouseOver(true); | ||
| 644 | } | ||
| 645 | } | ||
| 646 | |||
| 647 | /** | ||
| 648 | * Invoked when the mouse exits a component. | ||
| 649 | * | ||
| 650 | * @param e MouseEvent describing the details of the exit event. | ||
| 651 | * @since 1.5 | ||
| 652 | */ | ||
| 653 | public void mouseExited(MouseEvent e) { | ||
| 654 | if (e.getSource() == BasicSplitPaneDivider.this) { | ||
| 655 | setMouseOver(false); | ||
| 656 | } | ||
| 657 | } | ||
| 658 | } | ||
| 659 | |||
| 660 | |||
| 661 | /** | ||
| 662 | * Handles the events during a dragging session for a | ||
| 663 | * HORIZONTAL_SPLIT oriented split pane. This continually | ||
| 664 | * messages <code>dragDividerTo</code> and then when done messages | ||
| 665 | * <code>finishDraggingTo</code>. When an instance is created it should be | ||
| 666 | * messaged with <code>isValid</code> to insure that dragging can happen | ||
| 667 | * (dragging won't be allowed if the two views can not be resized). | ||
| 668 | * <p> | ||
| 669 | * <strong>Warning:</strong> | ||
| 670 | * Serialized objects of this class will not be compatible with | ||
| 671 | * future Swing releases. The current serialization support is | ||
| 672 | * appropriate for short term storage or RMI between applications running | ||
| 673 | * the same version of Swing. As of 1.4, support for long term storage | ||
| 674 | * of all JavaBeans<sup><font size="-2">TM</font></sup> | ||
| 675 | * has been added to the <code>java.beans</code> package. | ||
| 676 | * Please see {@link java.beans.XMLEncoder}. | ||
| 677 | */ | ||
| 678 | protected class DragController | ||
| 679 | { | ||
| 680 | /** | ||
| 681 | * Initial location of the divider. | ||
| 682 | */ | ||
| 683 | int initialX; | ||
| 684 | |||
| 685 | /** | ||
| 686 | * Maximum and minimum positions to drag to. | ||
| 687 | */ | ||
| 688 | int maxX, minX; | ||
| 689 | |||
| 690 | /** | ||
| 691 | * Initial location the mouse down happened at. | ||
| 692 | */ | ||
| 693 | int offset; | ||
| 694 | |||
| 695 | |||
| 696 | protected DragController(MouseEvent e) { | ||
| 697 | JSplitPane splitPane = splitPaneUI.getSplitPane(); | ||
| 698 | Component leftC = splitPane.getLeftComponent(); | ||
| 699 | Component rightC = splitPane.getRightComponent(); | ||
| 700 | |||
| 701 | initialX = getLocation().x; | ||
| 702 | if (e.getSource() == BasicSplitPaneDivider.this) { | ||
| 703 | offset = e.getX(); | ||
| 704 | } | ||
| 705 | else { // splitPane | ||
| 706 | offset = e.getX() - initialX; | ||
| 707 | } | ||
| 708 | if (leftC == null || rightC == null || offset < -1 || | ||
| 709 | offset >= getSize().width) { | ||
| 710 | // Don't allow dragging. | ||
| 711 | maxX = -1; | ||
| 712 | } | ||
| 713 | else { | ||
| 714 | Insets insets = splitPane.getInsets(); | ||
| 715 | |||
| 716 | if (leftC.isVisible()) { | ||
| 717 | minX = leftC.getMinimumSize().width; | ||
| 718 | if (insets != null) { | ||
| 719 | minX += insets.left; | ||
| 720 | } | ||
| 721 | } | ||
| 722 | else { | ||
| 723 | minX = 0; | ||
| 724 | } | ||
| 725 | if (rightC.isVisible()) { | ||
| 726 | int right = (insets != null) ? insets.right : 0; | ||
| 727 | maxX = Math.max(0, splitPane.getSize().width - | ||
| 728 | (getSize().width + right) - | ||
| 729 | rightC.getMinimumSize().width); | ||
| 730 | } | ||
| 731 | else { | ||
| 732 | int right = (insets != null) ? insets.right : 0; | ||
| 733 | maxX = Math.max(0, splitPane.getSize().width - | ||
| 734 | (getSize().width + right)); | ||
| 735 | } | ||
| 736 | if (maxX < minX) minX = maxX = 0; | ||
| 737 | } | ||
| 738 | } | ||
| 739 | |||
| 740 | |||
| 741 | /** | ||
| 742 | * Returns true if the dragging session is valid. | ||
| 743 | */ | ||
| 744 | protected boolean isValid() { | ||
| 745 | return (maxX > 0); | ||
| 746 | } | ||
| 747 | |||
| 748 | |||
| 749 | /** | ||
| 750 | * Returns the new position to put the divider at based on | ||
| 751 | * the passed in MouseEvent. | ||
| 752 | */ | ||
| 753 | protected int positionForMouseEvent(MouseEvent e) { | ||
| 754 | int newX = (e.getSource() == BasicSplitPaneDivider.this) ? | ||
| 755 | (e.getX() + getLocation().x) : e.getX(); | ||
| 756 | |||
| 757 | newX = Math.min(maxX, Math.max(minX, newX - offset)); | ||
| 758 | return newX; | ||
| 759 | } | ||
| 760 | |||
| 761 | |||
| 762 | /** | ||
| 763 | * Returns the x argument, since this is used for horizontal | ||
| 764 | * splits. | ||
| 765 | */ | ||
| 766 | protected int getNeededLocation(int x, int y) { | ||
| 767 | int newX; | ||
| 768 | |||
| 769 | newX = Math.min(maxX, Math.max(minX, x - offset)); | ||
| 770 | return newX; | ||
| 771 | } | ||
| 772 | |||
| 773 | |||
| 774 | protected void continueDrag(int newX, int newY) { | ||
| 775 | dragDividerTo(getNeededLocation(newX, newY)); | ||
| 776 | } | ||
| 777 | |||
| 778 | |||
| 779 | /** | ||
| 780 | * Messages dragDividerTo with the new location for the mouse | ||
| 781 | * event. | ||
| 782 | */ | ||
| 783 | protected void continueDrag(MouseEvent e) { | ||
| 784 | dragDividerTo(positionForMouseEvent(e)); | ||
| 785 | } | ||
| 786 | |||
| 787 | |||
| 788 | protected void completeDrag(int x, int y) { | ||
| 789 | finishDraggingTo(getNeededLocation(x, y)); | ||
| 790 | } | ||
| 791 | |||
| 792 | |||
| 793 | /** | ||
| 794 | * Messages finishDraggingTo with the new location for the mouse | ||
| 795 | * event. | ||
| 796 | */ | ||
| 797 | protected void completeDrag(MouseEvent e) { | ||
| 798 | finishDraggingTo(positionForMouseEvent(e)); | ||
| 799 | } | ||
| 800 | } // End of BasicSplitPaneDivider.DragController | ||
| 801 | |||
| 802 | |||
| 803 | /** | ||
| 804 | * Handles the events during a dragging session for a | ||
| 805 | * VERTICAL_SPLIT oriented split pane. This continually | ||
| 806 | * messages <code>dragDividerTo</code> and then when done messages | ||
| 807 | * <code>finishDraggingTo</code>. When an instance is created it should be | ||
| 808 | * messaged with <code>isValid</code> to insure that dragging can happen | ||
| 809 | * (dragging won't be allowed if the two views can not be resized). | ||
| 810 | */ | ||
| 811 | protected class VerticalDragController extends DragController | ||
| 812 | { | ||
| 813 | /* DragControllers ivars are now in terms of y, not x. */ | ||
| 814 | protected VerticalDragController(MouseEvent e) { | ||
| 815 | super(e); | ||
| 816 | JSplitPane splitPane = splitPaneUI.getSplitPane(); | ||
| 817 | Component leftC = splitPane.getLeftComponent(); | ||
| 818 | Component rightC = splitPane.getRightComponent(); | ||
| 819 | |||
| 820 | initialX = getLocation().y; | ||
| 821 | if (e.getSource() == BasicSplitPaneDivider.this) { | ||
| 822 | offset = e.getY(); | ||
| 823 | } | ||
| 824 | else { | ||
| 825 | offset = e.getY() - initialX; | ||
| 826 | } | ||
| 827 | if (leftC == null || rightC == null || offset < -1 || | ||
| 828 | offset > getSize().height) { | ||
| 829 | // Don't allow dragging. | ||
| 830 | maxX = -1; | ||
| 831 | } | ||
| 832 | else { | ||
| 833 | Insets insets = splitPane.getInsets(); | ||
| 834 | |||
| 835 | if (leftC.isVisible()) { | ||
| 836 | minX = leftC.getMinimumSize().height; | ||
| 837 | if (insets != null) { | ||
| 838 | minX += insets.top; | ||
| 839 | } | ||
| 840 | } | ||
| 841 | else { | ||
| 842 | minX = 0; | ||
| 843 | } | ||
| 844 | if (rightC.isVisible()) { | ||
| 845 | int bottom = (insets != null) ? insets.bottom : 0; | ||
| 846 | |||
| 847 | maxX = Math.max(0, splitPane.getSize().height - | ||
| 848 | (getSize().height + bottom) - | ||
| 849 | rightC.getMinimumSize().height); | ||
| 850 | } | ||
| 851 | else { | ||
| 852 | int bottom = (insets != null) ? insets.bottom : 0; | ||
| 853 | |||
| 854 | maxX = Math.max(0, splitPane.getSize().height - | ||
| 855 | (getSize().height + bottom)); | ||
| 856 | } | ||
| 857 | if (maxX < minX) minX = maxX = 0; | ||
| 858 | } | ||
| 859 | } | ||
| 860 | |||
| 861 | |||
| 862 | /** | ||
| 863 | * Returns the y argument, since this is used for vertical | ||
| 864 | * splits. | ||
| 865 | */ | ||
| 866 | protected int getNeededLocation(int x, int y) { | ||
| 867 | int newY; | ||
| 868 | |||
| 869 | newY = Math.min(maxX, Math.max(minX, y - offset)); | ||
| 870 | return newY; | ||
| 871 | } | ||
| 872 | |||
| 873 | |||
| 874 | /** | ||
| 875 | * Returns the new position to put the divider at based on | ||
| 876 | * the passed in MouseEvent. | ||
| 877 | */ | ||
| 878 | protected int positionForMouseEvent(MouseEvent e) { | ||
| 879 | int newY = (e.getSource() == BasicSplitPaneDivider.this) ? | ||
| 880 | (e.getY() + getLocation().y) : e.getY(); | ||
| 881 | |||
| 882 | |||
| 883 | newY = Math.min(maxX, Math.max(minX, newY - offset)); | ||
| 884 | return newY; | ||
| 885 | } | ||
| 886 | } // End of BasicSplitPaneDividier.VerticalDragController | ||
| 887 | |||
| 888 | |||
| 889 | /** | ||
| 890 | * Used to layout a <code>BasicSplitPaneDivider</code>. | ||
| 891 | * Layout for the divider | ||
| 892 | * involves appropriately moving the left/right buttons around. | ||
| 893 | * <p> | ||
| 894 | */ | ||
| 895 | protected class DividerLayout implements LayoutManager | ||
| 896 | { | ||
| 897 | public void layoutContainer(Container c) { | ||
| 898 | if (leftButton != null && rightButton != null && | ||
| 899 | c == BasicSplitPaneDivider.this) { | ||
| 900 | if (splitPane.isOneTouchExpandable()) { | ||
| 901 | Insets insets = getInsets(); | ||
| 902 | |||
| 903 | if (orientation == JSplitPane.VERTICAL_SPLIT) { | ||
| 904 | int extraX = (insets != null) ? insets.left : 0; | ||
| 905 | int blockSize = getHeight(); | ||
| 906 | |||
| 907 | if (insets != null) { | ||
| 908 | blockSize -= (insets.top + insets.bottom); | ||
| 909 | blockSize = Math.max(blockSize, 0); | ||
| 910 | } | ||
| 911 | blockSize = Math.min(blockSize, oneTouchSize); | ||
| 912 | |||
| 913 | int y = (c.getSize().height - blockSize) / 2; | ||
| 914 | |||
| 915 | if (!centerOneTouchButtons) { | ||
| 916 | y = (insets != null) ? insets.top : 0; | ||
| 917 | extraX = 0; | ||
| 918 | } | ||
| 919 | leftButton.setBounds(extraX + oneTouchOffset, y, | ||
| 920 | blockSize * 2, blockSize); | ||
| 921 | rightButton.setBounds(extraX + oneTouchOffset + | ||
| 922 | oneTouchSize * 2, y, | ||
| 923 | blockSize * 2, blockSize); | ||
| 924 | } | ||
| 925 | else { | ||
| 926 | int extraY = (insets != null) ? insets.top : 0; | ||
| 927 | int blockSize = getWidth(); | ||
| 928 | |||
| 929 | if (insets != null) { | ||
| 930 | blockSize -= (insets.left + insets.right); | ||
| 931 | blockSize = Math.max(blockSize, 0); | ||
| 932 | } | ||
| 933 | blockSize = Math.min(blockSize, oneTouchSize); | ||
| 934 | |||
| 935 | int x = (c.getSize().width - blockSize) / 2; | ||
| 936 | |||
| 937 | if (!centerOneTouchButtons) { | ||
| 938 | x = (insets != null) ? insets.left : 0; | ||
| 939 | extraY = 0; | ||
| 940 | } | ||
| 941 | |||
| 942 | leftButton.setBounds(x, extraY + oneTouchOffset, | ||
| 943 | blockSize, blockSize * 2); | ||
| 944 | rightButton.setBounds(x, extraY + oneTouchOffset + | ||
| 945 | oneTouchSize * 2, blockSize, | ||
| 946 | blockSize * 2); | ||
| 947 | } | ||
| 948 | } | ||
| 949 | else { | ||
| 950 | leftButton.setBounds(-5, -5, 1, 1); | ||
| 951 | rightButton.setBounds(-5, -5, 1, 1); | ||
| 952 | } | ||
| 953 | } | ||
| 954 | } | ||
| 955 | |||
| 956 | |||
| 957 | public Dimension minimumLayoutSize(Container c) { | ||
| 958 | // NOTE: This isn't really used, refer to | ||
| 959 | // BasicSplitPaneDivider.getPreferredSize for the reason. | ||
| 960 | // I leave it in hopes of having this used at some point. | ||
| 961 | if (c != BasicSplitPaneDivider.this || splitPane == null) { | ||
| 962 | return new Dimension(0,0); | ||
| 963 | } | ||
| 964 | Dimension buttonMinSize = null; | ||
| 965 | |||
| 966 | if (splitPane.isOneTouchExpandable() && leftButton != null) { | ||
| 967 | buttonMinSize = leftButton.getMinimumSize(); | ||
| 968 | } | ||
| 969 | |||
| 970 | Insets insets = getInsets(); | ||
| 971 | int width = getDividerSize(); | ||
| 972 | int height = width; | ||
| 973 | |||
| 974 | if (orientation == JSplitPane.VERTICAL_SPLIT) { | ||
| 975 | if (buttonMinSize != null) { | ||
| 976 | int size = buttonMinSize.height; | ||
| 977 | if (insets != null) { | ||
| 978 | size += insets.top + insets.bottom; | ||
| 979 | } | ||
| 980 | height = Math.max(height, size); | ||
| 981 | } | ||
| 982 | width = 1; | ||
| 983 | } | ||
| 984 | else { | ||
| 985 | if (buttonMinSize != null) { | ||
| 986 | int size = buttonMinSize.width; | ||
| 987 | if (insets != null) { | ||
| 988 | size += insets.left + insets.right; | ||
| 989 | } | ||
| 990 | width = Math.max(width, size); | ||
| 991 | } | ||
| 992 | height = 1; | ||
| 993 | } | ||
| 994 | return new Dimension(width, height); | ||
| 995 | } | ||
| 996 | |||
| 997 | |||
| 998 | public Dimension preferredLayoutSize(Container c) { | ||
| 999 | return minimumLayoutSize(c); | ||
| 1000 | } | ||
| 1001 | |||
| 1002 | |||
| 1003 | public void removeLayoutComponent(Component c) {} | ||
| 1004 | |||
| 1005 | public void addLayoutComponent(String string, Component c) {} | ||
| 1006 | } // End of class BasicSplitPaneDivider.DividerLayout | ||
| 1007 | |||
| 1008 | |||
| 1009 | /** | ||
| 1010 | * Listeners installed on the one touch expandable buttons. | ||
| 1011 | */ | ||
| 1012 | private class OneTouchActionHandler implements ActionListener { | ||
| 1013 | /** True indicates the resize should go the minimum (top or left) | ||
| 1014 | * vs false which indicates the resize should go to the maximum. | ||
| 1015 | */ | ||
| 1016 | private boolean toMinimum; | ||
| 1017 | |||
| 1018 | OneTouchActionHandler(boolean toMinimum) { | ||
| 1019 | this.toMinimum = toMinimum; | ||
| 1020 | } | ||
| 1021 | |||
| 1022 | public void actionPerformed(ActionEvent e) { | ||
| 1023 | Insets insets = splitPane.getInsets(); | ||
| 1024 | int lastLoc = splitPane.getLastDividerLocation(); | ||
| 1025 | int currentLoc = splitPaneUI.getDividerLocation(splitPane); | ||
| 1026 | int newLoc; | ||
| 1027 | |||
| 1028 | // We use the location from the UI directly, as the location the | ||
| 1029 | // JSplitPane itself maintains is not necessarly correct. | ||
| 1030 | if (toMinimum) { | ||
| 1031 | if (orientation == JSplitPane.VERTICAL_SPLIT) { | ||
| 1032 | if (currentLoc >= (splitPane.getHeight() - | ||
| 1033 | insets.bottom - getHeight())) { | ||
| 1034 | int maxLoc = splitPane.getMaximumDividerLocation(); | ||
| 1035 | newLoc = Math.min(lastLoc, maxLoc); | ||
| 1036 | splitPaneUI.setKeepHidden(false); | ||
| 1037 | } | ||
| 1038 | else { | ||
| 1039 | newLoc = insets.top; | ||
| 1040 | splitPaneUI.setKeepHidden(true); | ||
| 1041 | } | ||
| 1042 | } | ||
| 1043 | else { | ||
| 1044 | if (currentLoc >= (splitPane.getWidth() - | ||
| 1045 | insets.right - getWidth())) { | ||
| 1046 | int maxLoc = splitPane.getMaximumDividerLocation(); | ||
| 1047 | newLoc = Math.min(lastLoc, maxLoc); | ||
| 1048 | splitPaneUI.setKeepHidden(false); | ||
| 1049 | } | ||
| 1050 | else { | ||
| 1051 | newLoc = insets.left; | ||
| 1052 | splitPaneUI.setKeepHidden(true); | ||
| 1053 | } | ||
| 1054 | } | ||
| 1055 | } | ||
| 1056 | else { | ||
| 1057 | if (orientation == JSplitPane.VERTICAL_SPLIT) { | ||
| 1058 | if (currentLoc == insets.top) { | ||
| 1059 | int maxLoc = splitPane.getMaximumDividerLocation(); | ||
| 1060 | newLoc = Math.min(lastLoc, maxLoc); | ||
| 1061 | splitPaneUI.setKeepHidden(false); | ||
| 1062 | } | ||
| 1063 | else { | ||
| 1064 | newLoc = splitPane.getHeight() - getHeight() - | ||
| 1065 | insets.top; | ||
| 1066 | splitPaneUI.setKeepHidden(true); | ||
| 1067 | } | ||
| 1068 | } | ||
| 1069 | else { | ||
| 1070 | if (currentLoc == insets.left) { | ||
| 1071 | int maxLoc = splitPane.getMaximumDividerLocation(); | ||
| 1072 | newLoc = Math.min(lastLoc, maxLoc); | ||
| 1073 | splitPaneUI.setKeepHidden(false); | ||
| 1074 | } | ||
| 1075 | else { | ||
| 1076 | newLoc = splitPane.getWidth() - getWidth() - | ||
| 1077 | insets.left; | ||
| 1078 | splitPaneUI.setKeepHidden(true); | ||
| 1079 | } | ||
| 1080 | } | ||
| 1081 | } | ||
| 1082 | if (currentLoc != newLoc) { | ||
| 1083 | splitPane.setDividerLocation(newLoc); | ||
| 1084 | // We do this in case the dividers notion of the location | ||
| 1085 | // differs from the real location. | ||
| 1086 | splitPane.setLastDividerLocation(currentLoc); | ||
| 1087 | } | ||
| 1088 | } | ||
| 1089 | } // End of class BasicSplitPaneDivider.LeftActionListener | ||
| 1090 | } | ||