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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 | package javax.swing.plaf.basic; | ||
| 27 | |||
| 28 | import java.awt.event.*; | ||
| 29 | import java.awt.*; | ||
| 30 | import java.beans.*; | ||
| 31 | import java.util.Dictionary; | ||
| 32 | import java.util.Enumeration; | ||
| 33 | |||
| 34 | import javax.swing.*; | ||
| 35 | import javax.swing.event.*; | ||
| 36 | import javax.swing.plaf.*; | ||
| 37 | import sun.swing.DefaultLookup; | ||
| 38 | import sun.swing.UIAction; | ||
| 39 | |||
| 40 | |||
| 41 | /** | ||
| 42 | * A Basic L&F implementation of SliderUI. | ||
| 43 | * | ||
| 44 | * @author Tom Santos | ||
| 45 | */ | ||
| 46 | public class BasicSliderUI extends SliderUI{ | ||
| 47 | // Old actions forward to an instance of this. | ||
| 48 | private static final Actions SHARED_ACTION = new Actions(); | ||
| 49 | |||
| 50 | public static final int POSITIVE_SCROLL = +1; | ||
| 51 | public static final int NEGATIVE_SCROLL = -1; | ||
| 52 | public static final int MIN_SCROLL = -2; | ||
| 53 | public static final int MAX_SCROLL = +2; | ||
| 54 | |||
| 55 | protected Timer scrollTimer; | ||
| 56 | protected JSlider slider; | ||
| 57 | |||
| 58 | protected Insets focusInsets = null; | ||
| 59 | protected Insets insetCache = null; | ||
| 60 | protected boolean leftToRightCache = true; | ||
| 61 | protected Rectangle focusRect = null; | ||
| 62 | protected Rectangle contentRect = null; | ||
| 63 | protected Rectangle labelRect = null; | ||
| 64 | protected Rectangle tickRect = null; | ||
| 65 | protected Rectangle trackRect = null; | ||
| 66 | protected Rectangle thumbRect = null; | ||
| 67 | |||
| 68 | protected int trackBuffer = 0; // The distance that the track is from the side of the control | ||
| 69 | |||
| 70 | private transient boolean isDragging; | ||
| 71 | |||
| 72 | protected TrackListener trackListener; | ||
| 73 | protected ChangeListener changeListener; | ||
| 74 | protected ComponentListener componentListener; | ||
| 75 | protected FocusListener focusListener; | ||
| 76 | protected ScrollListener scrollListener; | ||
| 77 | protected PropertyChangeListener propertyChangeListener; | ||
| 78 | private Handler handler; | ||
| 79 | private int lastValue; | ||
| 80 | |||
| 81 | // Colors | ||
| 82 | private Color shadowColor; | ||
| 83 | private Color highlightColor; | ||
| 84 | private Color focusColor; | ||
| 85 | |||
| 86 | /** | ||
| 87 | * Whther or not sameLabelBaselines is up to date. | ||
| 88 | */ | ||
| 89 | private boolean checkedLabelBaselines; | ||
| 90 | /** | ||
| 91 | * Whether or not all the entries in the labeltable have the same | ||
| 92 | * baseline. | ||
| 93 | */ | ||
| 94 | private boolean sameLabelBaselines; | ||
| 95 | |||
| 96 | |||
| 97 | protected Color getShadowColor() { | ||
| 98 | return shadowColor; | ||
| 99 | } | ||
| 100 | |||
| 101 | protected Color getHighlightColor() { | ||
| 102 | return highlightColor; | ||
| 103 | } | ||
| 104 | |||
| 105 | protected Color getFocusColor() { | ||
| 106 | return focusColor; | ||
| 107 | } | ||
| 108 | |||
| 109 | /** | ||
| 110 | * Returns true if the user is dragging the slider. | ||
| 111 | * | ||
| 112 | * @return true if the user is dragging the slider | ||
| 113 | * @since 1.5 | ||
| 114 | */ | ||
| 115 | protected boolean isDragging() { | ||
| 116 | return isDragging; | ||
| 117 | } | ||
| 118 | |||
| 119 | ///////////////////////////////////////////////////////////////////////////// | ||
| 120 | // ComponentUI Interface Implementation methods | ||
| 121 | ///////////////////////////////////////////////////////////////////////////// | ||
| 122 | public static ComponentUI createUI(JComponent b) { | ||
| 123 | return new BasicSliderUI((JSlider)b); | ||
| 124 | } | ||
| 125 | |||
| 126 | public BasicSliderUI(JSlider b) { | ||
| 127 | } | ||
| 128 | |||
| 129 | public void installUI(JComponent c) { | ||
| 130 | slider = (JSlider) c; | ||
| 131 | |||
| 132 | checkedLabelBaselines = false; | ||
| 133 | |||
| 134 | slider.setEnabled(slider.isEnabled()); | ||
| 135 | LookAndFeel.installProperty(slider, "opaque", Boolean.TRUE); | ||
| 136 | |||
| 137 | isDragging = false; | ||
| 138 | trackListener = createTrackListener( slider ); | ||
| 139 | changeListener = createChangeListener( slider ); | ||
| 140 | componentListener = createComponentListener( slider ); | ||
| 141 | focusListener = createFocusListener( slider ); | ||
| 142 | scrollListener = createScrollListener( slider ); | ||
| 143 | propertyChangeListener = createPropertyChangeListener( slider ); | ||
| 144 | |||
| 145 | installDefaults( slider ); | ||
| 146 | installListeners( slider ); | ||
| 147 | installKeyboardActions( slider ); | ||
| 148 | |||
| 149 | scrollTimer = new Timer( 100, scrollListener ); | ||
| 150 | scrollTimer.setInitialDelay( 300 ); | ||
| 151 | |||
| 152 | insetCache = slider.getInsets(); | ||
| 153 | leftToRightCache = BasicGraphicsUtils.isLeftToRight(slider); | ||
| 154 | focusRect = new Rectangle(); | ||
| 155 | contentRect = new Rectangle(); | ||
| 156 | labelRect = new Rectangle(); | ||
| 157 | tickRect = new Rectangle(); | ||
| 158 | trackRect = new Rectangle(); | ||
| 159 | thumbRect = new Rectangle(); | ||
| 160 | lastValue = slider.getValue(); | ||
| 161 | |||
| 162 | calculateGeometry(); // This figures out where the labels, ticks, track, and thumb are. | ||
| 163 | } | ||
| 164 | |||
| 165 | public void uninstallUI(JComponent c) { | ||
| 166 | if ( c != slider ) | ||
| 167 | throw new IllegalComponentStateException( | ||
| 168 | this + " was asked to deinstall() " | ||
| 169 | + c + " when it only knows about " | ||
| 170 | + slider + "."); | ||
| 171 | |||
| 172 | scrollTimer.stop(); | ||
| 173 | scrollTimer = null; | ||
| 174 | |||
| 175 | uninstallDefaults(slider); | ||
| 176 | uninstallListeners( slider ); | ||
| 177 | uninstallKeyboardActions(slider); | ||
| 178 | |||
| 179 | insetCache = null; | ||
| 180 | leftToRightCache = true; | ||
| 181 | focusRect = null; | ||
| 182 | contentRect = null; | ||
| 183 | labelRect = null; | ||
| 184 | tickRect = null; | ||
| 185 | trackRect = null; | ||
| 186 | thumbRect = null; | ||
| 187 | trackListener = null; | ||
| 188 | changeListener = null; | ||
| 189 | componentListener = null; | ||
| 190 | focusListener = null; | ||
| 191 | scrollListener = null; | ||
| 192 | propertyChangeListener = null; | ||
| 193 | slider = null; | ||
| 194 | } | ||
| 195 | |||
| 196 | protected void installDefaults( JSlider slider ) { | ||
| 197 | LookAndFeel.installBorder(slider, "Slider.border"); | ||
| 198 | LookAndFeel.installColorsAndFont(slider, "Slider.background", | ||
| 199 | "Slider.foreground", "Slider.font"); | ||
| 200 | highlightColor = UIManager.getColor("Slider.highlight"); | ||
| 201 | |||
| 202 | shadowColor = UIManager.getColor("Slider.shadow"); | ||
| 203 | focusColor = UIManager.getColor("Slider.focus"); | ||
| 204 | |||
| 205 | focusInsets = (Insets)UIManager.get( "Slider.focusInsets" ); | ||
| 206 | // use default if missing so that BasicSliderUI can be used in other | ||
| 207 | // LAFs like Nimbus | ||
| 208 | if (focusInsets == null) focusInsets = new InsetsUIResource(2,2,2,2); | ||
| 209 | } | ||
| 210 | |||
| 211 | protected void uninstallDefaults(JSlider slider) { | ||
| 212 | LookAndFeel.uninstallBorder(slider); | ||
| 213 | |||
| 214 | focusInsets = null; | ||
| 215 | } | ||
| 216 | |||
| 217 | protected TrackListener createTrackListener(JSlider slider) { | ||
| 218 | return new TrackListener(); | ||
| 219 | } | ||
| 220 | |||
| 221 | protected ChangeListener createChangeListener(JSlider slider) { | ||
| 222 | return getHandler(); | ||
| 223 | } | ||
| 224 | |||
| 225 | protected ComponentListener createComponentListener(JSlider slider) { | ||
| 226 | return getHandler(); | ||
| 227 | } | ||
| 228 | |||
| 229 | protected FocusListener createFocusListener(JSlider slider) { | ||
| 230 | return getHandler(); | ||
| 231 | } | ||
| 232 | |||
| 233 | protected ScrollListener createScrollListener( JSlider slider ) { | ||
| 234 | return new ScrollListener(); | ||
| 235 | } | ||
| 236 | |||
| 237 | protected PropertyChangeListener createPropertyChangeListener( | ||
| 238 | JSlider slider) { | ||
| 239 | return getHandler(); | ||
| 240 | } | ||
| 241 | |||
| 242 | private Handler getHandler() { | ||
| 243 | if (handler == null) { | ||
| 244 | handler = new Handler(); | ||
| 245 | } | ||
| 246 | return handler; | ||
| 247 | } | ||
| 248 | |||
| 249 | protected void installListeners( JSlider slider ) { | ||
| 250 | slider.addMouseListener(trackListener); | ||
| 251 | slider.addMouseMotionListener(trackListener); | ||
| 252 | slider.addFocusListener(focusListener); | ||
| 253 | slider.addComponentListener(componentListener); | ||
| 254 | slider.addPropertyChangeListener( propertyChangeListener ); | ||
| 255 | slider.getModel().addChangeListener(changeListener); | ||
| 256 | } | ||
| 257 | |||
| 258 | protected void uninstallListeners( JSlider slider ) { | ||
| 259 | slider.removeMouseListener(trackListener); | ||
| 260 | slider.removeMouseMotionListener(trackListener); | ||
| 261 | slider.removeFocusListener(focusListener); | ||
| 262 | slider.removeComponentListener(componentListener); | ||
| 263 | slider.removePropertyChangeListener( propertyChangeListener ); | ||
| 264 | slider.getModel().removeChangeListener(changeListener); | ||
| 265 | handler = null; | ||
| 266 | } | ||
| 267 | |||
| 268 | protected void installKeyboardActions( JSlider slider ) { | ||
| 269 | InputMap km = getInputMap(JComponent.WHEN_FOCUSED, slider); | ||
| 270 | SwingUtilities.replaceUIInputMap(slider, JComponent.WHEN_FOCUSED, km); | ||
| 271 | LazyActionMap.installLazyActionMap(slider, BasicSliderUI.class, | ||
| 272 | "Slider.actionMap"); | ||
| 273 | } | ||
| 274 | |||
| 275 | InputMap getInputMap(int condition, JSlider slider) { | ||
| 276 | if (condition == JComponent.WHEN_FOCUSED) { | ||
| 277 | InputMap keyMap = (InputMap)DefaultLookup.get(slider, this, | ||
| 278 | "Slider.focusInputMap"); | ||
| 279 | InputMap rtlKeyMap; | ||
| 280 | |||
| 281 | if (slider.getComponentOrientation().isLeftToRight() || | ||
| 282 | ((rtlKeyMap = (InputMap)DefaultLookup.get(slider, this, | ||
| 283 | "Slider.focusInputMap.RightToLeft")) == null)) { | ||
| 284 | return keyMap; | ||
| 285 | } else { | ||
| 286 | rtlKeyMap.setParent(keyMap); | ||
| 287 | return rtlKeyMap; | ||
| 288 | } | ||
| 289 | } | ||
| 290 | return null; | ||
| 291 | } | ||
| 292 | |||
| 293 | /** | ||
| 294 | * Populates ComboBox's actions. | ||
| 295 | */ | ||
| 296 | static void loadActionMap(LazyActionMap map) { | ||
| 297 | map.put(new Actions(Actions.POSITIVE_UNIT_INCREMENT)); | ||
| 298 | map.put(new Actions(Actions.POSITIVE_BLOCK_INCREMENT)); | ||
| 299 | map.put(new Actions(Actions.NEGATIVE_UNIT_INCREMENT)); | ||
| 300 | map.put(new Actions(Actions.NEGATIVE_BLOCK_INCREMENT)); | ||
| 301 | map.put(new Actions(Actions.MIN_SCROLL_INCREMENT)); | ||
| 302 | map.put(new Actions(Actions.MAX_SCROLL_INCREMENT)); | ||
| 303 | } | ||
| 304 | |||
| 305 | protected void uninstallKeyboardActions( JSlider slider ) { | ||
| 306 | SwingUtilities.replaceUIActionMap(slider, null); | ||
| 307 | SwingUtilities.replaceUIInputMap(slider, JComponent.WHEN_FOCUSED, | ||
| 308 | null); | ||
| 309 | } | ||
| 310 | |||
| 311 | |||
| 312 | /** | ||
| 313 | * Returns the baseline. | ||
| 314 | * | ||
| 315 | * @throws NullPointerException {@inheritDoc} | ||
| 316 | * @throws IllegalArgumentException {@inheritDoc} | ||
| 317 | * @see javax.swing.JComponent#getBaseline(int, int) | ||
| 318 | * @since 1.6 | ||
| 319 | */ | ||
| 320 | public int getBaseline(JComponent c, int width, int height) { | ||
| 321 | super.getBaseline(c, width, height); | ||
| 322 | if (slider.getPaintLabels() && labelsHaveSameBaselines()) { | ||
| 323 | FontMetrics metrics = slider.getFontMetrics(slider.getFont()); | ||
| 324 | Insets insets = slider.getInsets(); | ||
| 325 | Dimension thumbSize = getThumbSize(); | ||
| 326 | if (slider.getOrientation() == JSlider.HORIZONTAL) { | ||
| 327 | int tickLength = getTickLength(); | ||
| 328 | int contentHeight = height - insets.top - insets.bottom - | ||
| 329 | focusInsets.top - focusInsets.bottom; | ||
| 330 | int thumbHeight = thumbSize.height; | ||
| 331 | int centerSpacing = thumbHeight; | ||
| 332 | if (slider.getPaintTicks()) { | ||
| 333 | centerSpacing += tickLength; | ||
| 334 | } | ||
| 335 | // Assume uniform labels. | ||
| 336 | centerSpacing += getHeightOfTallestLabel(); | ||
| 337 | int trackY = insets.top + focusInsets.top + | ||
| 338 | (contentHeight - centerSpacing - 1) / 2; | ||
| 339 | int trackHeight = thumbHeight; | ||
| 340 | int tickY = trackY + trackHeight; | ||
| 341 | int tickHeight = tickLength; | ||
| 342 | if (!slider.getPaintTicks()) { | ||
| 343 | tickHeight = 0; | ||
| 344 | } | ||
| 345 | int labelY = tickY + tickHeight; | ||
| 346 | return labelY + metrics.getAscent(); | ||
| 347 | } | ||
| 348 | else { // vertical | ||
| 349 | boolean inverted = slider.getInverted(); | ||
| 350 | Integer value = inverted ? getLowestValue() : | ||
| 351 | getHighestValue(); | ||
| 352 | if (value != null) { | ||
| 353 | int thumbHeight = thumbSize.height; | ||
| 354 | int trackBuffer = Math.max(metrics.getHeight() / 2, | ||
| 355 | thumbHeight / 2); | ||
| 356 | int contentY = focusInsets.top + insets.top; | ||
| 357 | int trackY = contentY + trackBuffer; | ||
| 358 | int trackHeight = height - focusInsets.top - | ||
| 359 | focusInsets.bottom - insets.top - insets.bottom - | ||
| 360 | trackBuffer - trackBuffer; | ||
| 361 | int yPosition = yPositionForValue(value, trackY, | ||
| 362 | trackHeight); | ||
| 363 | return yPosition - metrics.getHeight() / 2 + | ||
| 364 | metrics.getAscent(); | ||
| 365 | } | ||
| 366 | } | ||
| 367 | } | ||
| 368 | return 0; | ||
| 369 | } | ||
| 370 | |||
| 371 | /** | ||
| 372 | * Returns an enum indicating how the baseline of the component | ||
| 373 | * changes as the size changes. | ||
| 374 | * | ||
| 375 | * @throws NullPointerException {@inheritDoc} | ||
| 376 | * @see javax.swing.JComponent#getBaseline(int, int) | ||
| 377 | * @since 1.6 | ||
| 378 | */ | ||
| 379 | public Component.BaselineResizeBehavior getBaselineResizeBehavior( | ||
| 380 | JComponent c) { | ||
| 381 | super.getBaselineResizeBehavior(c); | ||
| 382 | // NOTE: BasicSpinner really provides for CENTER_OFFSET, but | ||
| 383 | // the default min/pref size is smaller than it should be | ||
| 384 | // so that getBaseline() doesn't implement the contract | ||
| 385 | // for CENTER_OFFSET as defined in Component. | ||
| 386 | return Component.BaselineResizeBehavior.OTHER; | ||
| 387 | } | ||
| 388 | |||
| 389 | /** | ||
| 390 | * Returns true if all the labels from the label table have the same | ||
| 391 | * baseline. | ||
| 392 | * | ||
| 393 | * @return true if all the labels from the label table have the | ||
| 394 | * same baseline | ||
| 395 | * @since 1.6 | ||
| 396 | */ | ||
| 397 | protected boolean labelsHaveSameBaselines() { | ||
| 398 | if (!checkedLabelBaselines) { | ||
| 399 | checkedLabelBaselines = true; | ||
| 400 | Dictionary dictionary = slider.getLabelTable(); | ||
| 401 | if (dictionary != null) { | ||
| 402 | sameLabelBaselines = true; | ||
| 403 | Enumeration elements = dictionary.elements(); | ||
| 404 | int baseline = -1; | ||
| 405 | while (elements.hasMoreElements()) { | ||
| 406 | JComponent label = (JComponent) elements.nextElement(); | ||
| 407 | Dimension pref = label.getPreferredSize(); | ||
| 408 | int labelBaseline = label.getBaseline(pref.width, | ||
| 409 | pref.height); | ||
| 410 | if (labelBaseline >= 0) { | ||
| 411 | if (baseline == -1) { | ||
| 412 | baseline = labelBaseline; | ||
| 413 | } | ||
| 414 | else if (baseline != labelBaseline) { | ||
| 415 | sameLabelBaselines = false; | ||
| 416 | break; | ||
| 417 | } | ||
| 418 | } | ||
| 419 | else { | ||
| 420 | sameLabelBaselines = false; | ||
| 421 | break; | ||
| 422 | } | ||
| 423 | } | ||
| 424 | } | ||
| 425 | else { | ||
| 426 | sameLabelBaselines = false; | ||
| 427 | } | ||
| 428 | } | ||
| 429 | return sameLabelBaselines; | ||
| 430 | } | ||
| 431 | |||
| 432 | public Dimension getPreferredHorizontalSize() { | ||
| 433 | Dimension horizDim = (Dimension)DefaultLookup.get(slider, | ||
| 434 | this, "Slider.horizontalSize"); | ||
| 435 | if (horizDim == null) { | ||
| 436 | horizDim = new Dimension(200, 21); | ||
| 437 | } | ||
| 438 | return horizDim; | ||
| 439 | } | ||
| 440 | |||
| 441 | public Dimension getPreferredVerticalSize() { | ||
| 442 | Dimension vertDim = (Dimension)DefaultLookup.get(slider, | ||
| 443 | this, "Slider.verticalSize"); | ||
| 444 | if (vertDim == null) { | ||
| 445 | vertDim = new Dimension(21, 200); | ||
| 446 | } | ||
| 447 | return vertDim; | ||
| 448 | } | ||
| 449 | |||
| 450 | public Dimension getMinimumHorizontalSize() { | ||
| 451 | Dimension minHorizDim = (Dimension)DefaultLookup.get(slider, | ||
| 452 | this, "Slider.minimumHorizontalSize"); | ||
| 453 | if (minHorizDim == null) { | ||
| 454 | minHorizDim = new Dimension(36, 21); | ||
| 455 | } | ||
| 456 | return minHorizDim; | ||
| 457 | } | ||
| 458 | |||
| 459 | public Dimension getMinimumVerticalSize() { | ||
| 460 | Dimension minVertDim = (Dimension)DefaultLookup.get(slider, | ||
| 461 | this, "Slider.minimumVerticalSize"); | ||
| 462 | if (minVertDim == null) { | ||
| 463 | minVertDim = new Dimension(21, 36); | ||
| 464 | } | ||
| 465 | return minVertDim; | ||
| 466 | } | ||
| 467 | |||
| 468 | public Dimension getPreferredSize(JComponent c) { | ||
| 469 | recalculateIfInsetsChanged(); | ||
| 470 | Dimension d; | ||
| 471 | if ( slider.getOrientation() == JSlider.VERTICAL ) { | ||
| 472 | d = new Dimension(getPreferredVerticalSize()); | ||
| 473 | d.width = insetCache.left + insetCache.right; | ||
| 474 | d.width += focusInsets.left + focusInsets.right; | ||
| 475 | d.width += trackRect.width + tickRect.width + labelRect.width; | ||
| 476 | } | ||
| 477 | else { | ||
| 478 | d = new Dimension(getPreferredHorizontalSize()); | ||
| 479 | d.height = insetCache.top + insetCache.bottom; | ||
| 480 | d.height += focusInsets.top + focusInsets.bottom; | ||
| 481 | d.height += trackRect.height + tickRect.height + labelRect.height; | ||
| 482 | } | ||
| 483 | |||
| 484 | return d; | ||
| 485 | } | ||
| 486 | |||
| 487 | public Dimension getMinimumSize(JComponent c) { | ||
| 488 | recalculateIfInsetsChanged(); | ||
| 489 | Dimension d; | ||
| 490 | |||
| 491 | if ( slider.getOrientation() == JSlider.VERTICAL ) { | ||
| 492 | d = new Dimension(getMinimumVerticalSize()); | ||
| 493 | d.width = insetCache.left + insetCache.right; | ||
| 494 | d.width += focusInsets.left + focusInsets.right; | ||
| 495 | d.width += trackRect.width + tickRect.width + labelRect.width; | ||
| 496 | } | ||
| 497 | else { | ||
| 498 | d = new Dimension(getMinimumHorizontalSize()); | ||
| 499 | d.height = insetCache.top + insetCache.bottom; | ||
| 500 | d.height += focusInsets.top + focusInsets.bottom; | ||
| 501 | d.height += trackRect.height + tickRect.height + labelRect.height; | ||
| 502 | } | ||
| 503 | |||
| 504 | return d; | ||
| 505 | } | ||
| 506 | |||
| 507 | public Dimension getMaximumSize(JComponent c) { | ||
| 508 | Dimension d = getPreferredSize(c); | ||
| 509 | if ( slider.getOrientation() == JSlider.VERTICAL ) { | ||
| 510 | d.height = Short.MAX_VALUE; | ||
| 511 | } | ||
| 512 | else { | ||
| 513 | d.width = Short.MAX_VALUE; | ||
| 514 | } | ||
| 515 | |||
| 516 | return d; | ||
| 517 | } | ||
| 518 | |||
| 519 | protected void calculateGeometry() { | ||
| 520 | calculateFocusRect(); | ||
| 521 | calculateContentRect(); | ||
| 522 | calculateThumbSize(); | ||
| 523 | calculateTrackBuffer(); | ||
| 524 | calculateTrackRect(); | ||
| 525 | calculateTickRect(); | ||
| 526 | calculateLabelRect(); | ||
| 527 | calculateThumbLocation(); | ||
| 528 | } | ||
| 529 | |||
| 530 | protected void calculateFocusRect() { | ||
| 531 | focusRect.x = insetCache.left; | ||
| 532 | focusRect.y = insetCache.top; | ||
| 533 | focusRect.width = slider.getWidth() - (insetCache.left + insetCache.right); | ||
| 534 | focusRect.height = slider.getHeight() - (insetCache.top + insetCache.bottom); | ||
| 535 | } | ||
| 536 | |||
| 537 | protected void calculateThumbSize() { | ||
| 538 | Dimension size = getThumbSize(); | ||
| 539 | thumbRect.setSize( size.width, size.height ); | ||
| 540 | } | ||
| 541 | |||
| 542 | protected void calculateContentRect() { | ||
| 543 | contentRect.x = focusRect.x + focusInsets.left; | ||
| 544 | contentRect.y = focusRect.y + focusInsets.top; | ||
| 545 | contentRect.width = focusRect.width - (focusInsets.left + focusInsets.right); | ||
| 546 | contentRect.height = focusRect.height - (focusInsets.top + focusInsets.bottom); | ||
| 547 | } | ||
| 548 | |||
| 549 | private int getTickSpacing() { | ||
| 550 | int majorTickSpacing = slider.getMajorTickSpacing(); | ||
| 551 | int minorTickSpacing = slider.getMinorTickSpacing(); | ||
| 552 | |||
| 553 | int result; | ||
| 554 | |||
| 555 | if (minorTickSpacing > 0) { | ||
| 556 | result = minorTickSpacing; | ||
| 557 | } else if (majorTickSpacing > 0) { | ||
| 558 | result = majorTickSpacing; | ||
| 559 | } else { | ||
| 560 | result = 0; | ||
| 561 | } | ||
| 562 | |||
| 563 | return result; | ||
| 564 | } | ||
| 565 | |||
| 566 | protected void calculateThumbLocation() { | ||
| 567 | if ( slider.getSnapToTicks() ) { | ||
| 568 | int sliderValue = slider.getValue(); | ||
| 569 | int snappedValue = sliderValue; | ||
| 570 | int tickSpacing = getTickSpacing(); | ||
| 571 | |||
| 572 | if ( tickSpacing != 0 ) { | ||
| 573 | // If it's not on a tick, change the value | ||
| 574 | if ( (sliderValue - slider.getMinimum()) % tickSpacing != 0 ) { | ||
| 575 | float temp = (float)(sliderValue - slider.getMinimum()) / (float)tickSpacing; | ||
| 576 | int whichTick = Math.round( temp ); | ||
| 577 | |||
| 578 | // This is the fix for the bug #6401380 | ||
| 579 | if (temp - (int)temp == .5 && sliderValue < lastValue) { | ||
| 580 | whichTick --; | ||
| 581 | } | ||
| 582 | snappedValue = slider.getMinimum() + (whichTick * tickSpacing); | ||
| 583 | } | ||
| 584 | |||
| 585 | if( snappedValue != sliderValue ) { | ||
| 586 | slider.setValue( snappedValue ); | ||
| 587 | } | ||
| 588 | } | ||
| 589 | } | ||
| 590 | |||
| 591 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 592 | int valuePosition = xPositionForValue(slider.getValue()); | ||
| 593 | |||
| 594 | thumbRect.x = valuePosition - (thumbRect.width / 2); | ||
| 595 | thumbRect.y = trackRect.y; | ||
| 596 | } | ||
| 597 | else { | ||
| 598 | int valuePosition = yPositionForValue(slider.getValue()); | ||
| 599 | |||
| 600 | thumbRect.x = trackRect.x; | ||
| 601 | thumbRect.y = valuePosition - (thumbRect.height / 2); | ||
| 602 | } | ||
| 603 | } | ||
| 604 | |||
| 605 | protected void calculateTrackBuffer() { | ||
| 606 | if ( slider.getPaintLabels() && slider.getLabelTable() != null ) { | ||
| 607 | Component highLabel = getHighestValueLabel(); | ||
| 608 | Component lowLabel = getLowestValueLabel(); | ||
| 609 | |||
| 610 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 611 | trackBuffer = Math.max( highLabel.getBounds().width, lowLabel.getBounds().width ) / 2; | ||
| 612 | trackBuffer = Math.max( trackBuffer, thumbRect.width / 2 ); | ||
| 613 | } | ||
| 614 | else { | ||
| 615 | trackBuffer = Math.max( highLabel.getBounds().height, lowLabel.getBounds().height ) / 2; | ||
| 616 | trackBuffer = Math.max( trackBuffer, thumbRect.height / 2 ); | ||
| 617 | } | ||
| 618 | } | ||
| 619 | else { | ||
| 620 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 621 | trackBuffer = thumbRect.width / 2; | ||
| 622 | } | ||
| 623 | else { | ||
| 624 | trackBuffer = thumbRect.height / 2; | ||
| 625 | } | ||
| 626 | } | ||
| 627 | } | ||
| 628 | |||
| 629 | |||
| 630 | protected void calculateTrackRect() { | ||
| 631 | int centerSpacing; // used to center sliders added using BorderLayout.CENTER (bug 4275631) | ||
| 632 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 633 | centerSpacing = thumbRect.height; | ||
| 634 | if ( slider.getPaintTicks() ) centerSpacing += getTickLength(); | ||
| 635 | if ( slider.getPaintLabels() ) centerSpacing += getHeightOfTallestLabel(); | ||
| 636 | trackRect.x = contentRect.x + trackBuffer; | ||
| 637 | trackRect.y = contentRect.y + (contentRect.height - centerSpacing - 1)/2; | ||
| 638 | trackRect.width = contentRect.width - (trackBuffer * 2); | ||
| 639 | trackRect.height = thumbRect.height; | ||
| 640 | } | ||
| 641 | else { | ||
| 642 | centerSpacing = thumbRect.width; | ||
| 643 | if (BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 644 | if ( slider.getPaintTicks() ) centerSpacing += getTickLength(); | ||
| 645 | if ( slider.getPaintLabels() ) centerSpacing += getWidthOfWidestLabel(); | ||
| 646 | } else { | ||
| 647 | if ( slider.getPaintTicks() ) centerSpacing -= getTickLength(); | ||
| 648 | if ( slider.getPaintLabels() ) centerSpacing -= getWidthOfWidestLabel(); | ||
| 649 | } | ||
| 650 | trackRect.x = contentRect.x + (contentRect.width - centerSpacing - 1)/2; | ||
| 651 | trackRect.y = contentRect.y + trackBuffer; | ||
| 652 | trackRect.width = thumbRect.width; | ||
| 653 | trackRect.height = contentRect.height - (trackBuffer * 2); | ||
| 654 | } | ||
| 655 | |||
| 656 | } | ||
| 657 | |||
| 658 | /** | ||
| 659 | * Gets the height of the tick area for horizontal sliders and the width of the | ||
| 660 | * tick area for vertical sliders. BasicSliderUI uses the returned value to | ||
| 661 | * determine the tick area rectangle. If you want to give your ticks some room, | ||
| 662 | * make this larger than you need and paint your ticks away from the sides in paintTicks(). | ||
| 663 | */ | ||
| 664 | protected int getTickLength() { | ||
| 665 | return 8; | ||
| 666 | } | ||
| 667 | |||
| 668 | protected void calculateTickRect() { | ||
| 669 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 670 | tickRect.x = trackRect.x; | ||
| 671 | tickRect.y = trackRect.y + trackRect.height; | ||
| 672 | tickRect.width = trackRect.width; | ||
| 673 | tickRect.height = (slider.getPaintTicks()) ? getTickLength() : 0; | ||
| 674 | } | ||
| 675 | else { | ||
| 676 | tickRect.width = (slider.getPaintTicks()) ? getTickLength() : 0; | ||
| 677 | if(BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 678 | tickRect.x = trackRect.x + trackRect.width; | ||
| 679 | } | ||
| 680 | else { | ||
| 681 | tickRect.x = trackRect.x - tickRect.width; | ||
| 682 | } | ||
| 683 | tickRect.y = trackRect.y; | ||
| 684 | tickRect.height = trackRect.height; | ||
| 685 | } | ||
| 686 | } | ||
| 687 | |||
| 688 | protected void calculateLabelRect() { | ||
| 689 | if ( slider.getPaintLabels() ) { | ||
| 690 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 691 | labelRect.x = tickRect.x - trackBuffer; | ||
| 692 | labelRect.y = tickRect.y + tickRect.height; | ||
| 693 | labelRect.width = tickRect.width + (trackBuffer * 2); | ||
| 694 | labelRect.height = getHeightOfTallestLabel(); | ||
| 695 | } | ||
| 696 | else { | ||
| 697 | if(BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 698 | labelRect.x = tickRect.x + tickRect.width; | ||
| 699 | labelRect.width = getWidthOfWidestLabel(); | ||
| 700 | } | ||
| 701 | else { | ||
| 702 | labelRect.width = getWidthOfWidestLabel(); | ||
| 703 | labelRect.x = tickRect.x - labelRect.width; | ||
| 704 | } | ||
| 705 | labelRect.y = tickRect.y - trackBuffer; | ||
| 706 | labelRect.height = tickRect.height + (trackBuffer * 2); | ||
| 707 | } | ||
| 708 | } | ||
| 709 | else { | ||
| 710 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 711 | labelRect.x = tickRect.x; | ||
| 712 | labelRect.y = tickRect.y + tickRect.height; | ||
| 713 | labelRect.width = tickRect.width; | ||
| 714 | labelRect.height = 0; | ||
| 715 | } | ||
| 716 | else { | ||
| 717 | if(BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 718 | labelRect.x = tickRect.x + tickRect.width; | ||
| 719 | } | ||
| 720 | else { | ||
| 721 | labelRect.x = tickRect.x; | ||
| 722 | } | ||
| 723 | labelRect.y = tickRect.y; | ||
| 724 | labelRect.width = 0; | ||
| 725 | labelRect.height = tickRect.height; | ||
| 726 | } | ||
| 727 | } | ||
| 728 | } | ||
| 729 | |||
| 730 | protected Dimension getThumbSize() { | ||
| 731 | Dimension size = new Dimension(); | ||
| 732 | |||
| 733 | if ( slider.getOrientation() == JSlider.VERTICAL ) { | ||
| 734 | size.width = 20; | ||
| 735 | size.height = 11; | ||
| 736 | } | ||
| 737 | else { | ||
| 738 | size.width = 11; | ||
| 739 | size.height = 20; | ||
| 740 | } | ||
| 741 | |||
| 742 | return size; | ||
| 743 | } | ||
| 744 | |||
| 745 | public class PropertyChangeHandler implements PropertyChangeListener { | ||
| 746 | // NOTE: This class exists only for backward compatability. All | ||
| 747 | // its functionality has been moved into Handler. If you need to add | ||
| 748 | // new functionality add it to the Handler, but make sure this | ||
| 749 | // class calls into the Handler. | ||
| 750 | public void propertyChange( PropertyChangeEvent e ) { | ||
| 751 | getHandler().propertyChange(e); | ||
| 752 | } | ||
| 753 | } | ||
| 754 | |||
| 755 | protected int getWidthOfWidestLabel() { | ||
| 756 | Dictionary dictionary = slider.getLabelTable(); | ||
| 757 | int widest = 0; | ||
| 758 | if ( dictionary != null ) { | ||
| 759 | Enumeration keys = dictionary.keys(); | ||
| 760 | while ( keys.hasMoreElements() ) { | ||
| 761 | JComponent label = (JComponent) dictionary.get(keys.nextElement()); | ||
| 762 | widest = Math.max( label.getPreferredSize().width, widest ); | ||
| 763 | } | ||
| 764 | } | ||
| 765 | return widest; | ||
| 766 | } | ||
| 767 | |||
| 768 | protected int getHeightOfTallestLabel() { | ||
| 769 | Dictionary dictionary = slider.getLabelTable(); | ||
| 770 | int tallest = 0; | ||
| 771 | if ( dictionary != null ) { | ||
| 772 | Enumeration keys = dictionary.keys(); | ||
| 773 | while ( keys.hasMoreElements() ) { | ||
| 774 | JComponent label = (JComponent) dictionary.get(keys.nextElement()); | ||
| 775 | tallest = Math.max( label.getPreferredSize().height, tallest ); | ||
| 776 | } | ||
| 777 | } | ||
| 778 | return tallest; | ||
| 779 | } | ||
| 780 | |||
| 781 | protected int getWidthOfHighValueLabel() { | ||
| 782 | Component label = getHighestValueLabel(); | ||
| 783 | int width = 0; | ||
| 784 | |||
| 785 | if ( label != null ) { | ||
| 786 | width = label.getPreferredSize().width; | ||
| 787 | } | ||
| 788 | |||
| 789 | return width; | ||
| 790 | } | ||
| 791 | |||
| 792 | protected int getWidthOfLowValueLabel() { | ||
| 793 | Component label = getLowestValueLabel(); | ||
| 794 | int width = 0; | ||
| 795 | |||
| 796 | if ( label != null ) { | ||
| 797 | width = label.getPreferredSize().width; | ||
| 798 | } | ||
| 799 | |||
| 800 | return width; | ||
| 801 | } | ||
| 802 | |||
| 803 | protected int getHeightOfHighValueLabel() { | ||
| 804 | Component label = getHighestValueLabel(); | ||
| 805 | int height = 0; | ||
| 806 | |||
| 807 | if ( label != null ) { | ||
| 808 | height = label.getPreferredSize().height; | ||
| 809 | } | ||
| 810 | |||
| 811 | return height; | ||
| 812 | } | ||
| 813 | |||
| 814 | protected int getHeightOfLowValueLabel() { | ||
| 815 | Component label = getLowestValueLabel(); | ||
| 816 | int height = 0; | ||
| 817 | |||
| 818 | if ( label != null ) { | ||
| 819 | height = label.getPreferredSize().height; | ||
| 820 | } | ||
| 821 | |||
| 822 | return height; | ||
| 823 | } | ||
| 824 | |||
| 825 | protected boolean drawInverted() { | ||
| 826 | if (slider.getOrientation()==JSlider.HORIZONTAL) { | ||
| 827 | if(BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 828 | return slider.getInverted(); | ||
| 829 | } else { | ||
| 830 | return !slider.getInverted(); | ||
| 831 | } | ||
| 832 | } else { | ||
| 833 | return slider.getInverted(); | ||
| 834 | } | ||
| 835 | } | ||
| 836 | |||
| 837 | /** | ||
| 838 | * Returns the biggest value that has an entry in the label table. | ||
| 839 | * | ||
| 840 | * @return biggest value that has an entry in the label table, or | ||
| 841 | * null. | ||
| 842 | * @since 1.6 | ||
| 843 | */ | ||
| 844 | protected Integer getHighestValue() { | ||
| 845 | Dictionary dictionary = slider.getLabelTable(); | ||
| 846 | |||
| 847 | if (dictionary == null) { | ||
| 848 | return null; | ||
| 849 | } | ||
| 850 | |||
| 851 | Enumeration keys = dictionary.keys(); | ||
| 852 | |||
| 853 | Integer max = null; | ||
| 854 | |||
| 855 | while (keys.hasMoreElements()) { | ||
| 856 | Integer i = (Integer) keys.nextElement(); | ||
| 857 | |||
| 858 | if (max == null || i > max) { | ||
| 859 | max = i; | ||
| 860 | } | ||
| 861 | } | ||
| 862 | |||
| 863 | return max; | ||
| 864 | } | ||
| 865 | |||
| 866 | /** | ||
| 867 | * Returns the smallest value that has an entry in the label table. | ||
| 868 | * | ||
| 869 | * @return smallest value that has an entry in the label table, or | ||
| 870 | * null. | ||
| 871 | * @since 1.6 | ||
| 872 | */ | ||
| 873 | protected Integer getLowestValue() { | ||
| 874 | Dictionary dictionary = slider.getLabelTable(); | ||
| 875 | |||
| 876 | if (dictionary == null) { | ||
| 877 | return null; | ||
| 878 | } | ||
| 879 | |||
| 880 | Enumeration keys = dictionary.keys(); | ||
| 881 | |||
| 882 | Integer min = null; | ||
| 883 | |||
| 884 | while (keys.hasMoreElements()) { | ||
| 885 | Integer i = (Integer) keys.nextElement(); | ||
| 886 | |||
| 887 | if (min == null || i < min) { | ||
| 888 | min = i; | ||
| 889 | } | ||
| 890 | } | ||
| 891 | |||
| 892 | return min; | ||
| 893 | } | ||
| 894 | |||
| 895 | |||
| 896 | /** | ||
| 897 | * Returns the label that corresponds to the highest slider value in the label table. | ||
| 898 | * @see JSlider#setLabelTable | ||
| 899 | */ | ||
| 900 | protected Component getLowestValueLabel() { | ||
| 901 | Integer min = getLowestValue(); | ||
| 902 | if (min != null) { | ||
| 903 | return (Component)slider.getLabelTable().get(min); | ||
| 904 | } | ||
| 905 | return null; | ||
| 906 | } | ||
| 907 | |||
| 908 | /** | ||
| 909 | * Returns the label that corresponds to the lowest slider value in the label table. | ||
| 910 | * @see JSlider#setLabelTable | ||
| 911 | */ | ||
| 912 | protected Component getHighestValueLabel() { | ||
| 913 | Integer max = getHighestValue(); | ||
| 914 | if (max != null) { | ||
| 915 | return (Component)slider.getLabelTable().get(max); | ||
| 916 | } | ||
| 917 | return null; | ||
| 918 | } | ||
| 919 | |||
| 920 | public void paint( Graphics g, JComponent c ) { | ||
| 921 | recalculateIfInsetsChanged(); | ||
| 922 | recalculateIfOrientationChanged(); | ||
| 923 | Rectangle clip = g.getClipBounds(); | ||
| 924 | |||
| 925 | if ( !clip.intersects(trackRect) && slider.getPaintTrack()) | ||
| 926 | calculateGeometry(); | ||
| 927 | |||
| 928 | if ( slider.getPaintTrack() && clip.intersects( trackRect ) ) { | ||
| 929 | paintTrack( g ); | ||
| 930 | } | ||
| 931 | if ( slider.getPaintTicks() && clip.intersects( tickRect ) ) { | ||
| 932 | paintTicks( g ); | ||
| 933 | } | ||
| 934 | if ( slider.getPaintLabels() && clip.intersects( labelRect ) ) { | ||
| 935 | paintLabels( g ); | ||
| 936 | } | ||
| 937 | if ( slider.hasFocus() && clip.intersects( focusRect ) ) { | ||
| 938 | paintFocus( g ); | ||
| 939 | } | ||
| 940 | if ( clip.intersects( thumbRect ) ) { | ||
| 941 | paintThumb( g ); | ||
| 942 | } | ||
| 943 | } | ||
| 944 | |||
| 945 | protected void recalculateIfInsetsChanged() { | ||
| 946 | Insets newInsets = slider.getInsets(); | ||
| 947 | if ( !newInsets.equals( insetCache ) ) { | ||
| 948 | insetCache = newInsets; | ||
| 949 | calculateGeometry(); | ||
| 950 | } | ||
| 951 | } | ||
| 952 | |||
| 953 | protected void recalculateIfOrientationChanged() { | ||
| 954 | boolean ltr = BasicGraphicsUtils.isLeftToRight(slider); | ||
| 955 | if ( ltr!=leftToRightCache ) { | ||
| 956 | leftToRightCache = ltr; | ||
| 957 | calculateGeometry(); | ||
| 958 | } | ||
| 959 | } | ||
| 960 | |||
| 961 | public void paintFocus(Graphics g) { | ||
| 962 | g.setColor( getFocusColor() ); | ||
| 963 | |||
| 964 | BasicGraphicsUtils.drawDashedRect( g, focusRect.x, focusRect.y, | ||
| 965 | focusRect.width, focusRect.height ); | ||
| 966 | } | ||
| 967 | |||
| 968 | public void paintTrack(Graphics g) { | ||
| 969 | |||
| 970 | Rectangle trackBounds = trackRect; | ||
| 971 | |||
| 972 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 973 | int cy = (trackBounds.height / 2) - 2; | ||
| 974 | int cw = trackBounds.width; | ||
| 975 | |||
| 976 | g.translate(trackBounds.x, trackBounds.y + cy); | ||
| 977 | |||
| 978 | g.setColor(getShadowColor()); | ||
| 979 | g.drawLine(0, 0, cw - 1, 0); | ||
| 980 | g.drawLine(0, 1, 0, 2); | ||
| 981 | g.setColor(getHighlightColor()); | ||
| 982 | g.drawLine(0, 3, cw, 3); | ||
| 983 | g.drawLine(cw, 0, cw, 3); | ||
| 984 | g.setColor(Color.black); | ||
| 985 | g.drawLine(1, 1, cw-2, 1); | ||
| 986 | |||
| 987 | g.translate(-trackBounds.x, -(trackBounds.y + cy)); | ||
| 988 | } | ||
| 989 | else { | ||
| 990 | int cx = (trackBounds.width / 2) - 2; | ||
| 991 | int ch = trackBounds.height; | ||
| 992 | |||
| 993 | g.translate(trackBounds.x + cx, trackBounds.y); | ||
| 994 | |||
| 995 | g.setColor(getShadowColor()); | ||
| 996 | g.drawLine(0, 0, 0, ch - 1); | ||
| 997 | g.drawLine(1, 0, 2, 0); | ||
| 998 | g.setColor(getHighlightColor()); | ||
| 999 | g.drawLine(3, 0, 3, ch); | ||
| 1000 | g.drawLine(0, ch, 3, ch); | ||
| 1001 | g.setColor(Color.black); | ||
| 1002 | g.drawLine(1, 1, 1, ch-2); | ||
| 1003 | |||
| 1004 | g.translate(-(trackBounds.x + cx), -trackBounds.y); | ||
| 1005 | } | ||
| 1006 | } | ||
| 1007 | |||
| 1008 | public void paintTicks(Graphics g) { | ||
| 1009 | Rectangle tickBounds = tickRect; | ||
| 1010 | |||
| 1011 | g.setColor(DefaultLookup.getColor(slider, this, "Slider.tickColor", Color.black)); | ||
| 1012 | |||
| 1013 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 1014 | g.translate(0, tickBounds.y); | ||
| 1015 | |||
| 1016 | if (slider.getMinorTickSpacing() > 0) { | ||
| 1017 | int value = slider.getMinimum(); | ||
| 1018 | |||
| 1019 | while ( value <= slider.getMaximum() ) { | ||
| 1020 | int xPos = xPositionForValue(value); | ||
| 1021 | paintMinorTickForHorizSlider( g, tickBounds, xPos ); | ||
| 1022 | |||
| 1023 | // Overflow checking | ||
| 1024 | if (Integer.MAX_VALUE - slider.getMinorTickSpacing() < value) { | ||
| 1025 | break; | ||
| 1026 | } | ||
| 1027 | |||
| 1028 | value += slider.getMinorTickSpacing(); | ||
| 1029 | } | ||
| 1030 | } | ||
| 1031 | |||
| 1032 | if (slider.getMajorTickSpacing() > 0) { | ||
| 1033 | int value = slider.getMinimum(); | ||
| 1034 | |||
| 1035 | while ( value <= slider.getMaximum() ) { | ||
| 1036 | int xPos = xPositionForValue(value); | ||
| 1037 | paintMajorTickForHorizSlider( g, tickBounds, xPos ); | ||
| 1038 | |||
| 1039 | // Overflow checking | ||
| 1040 | if (Integer.MAX_VALUE - slider.getMajorTickSpacing() < value) { | ||
| 1041 | break; | ||
| 1042 | } | ||
| 1043 | |||
| 1044 | value += slider.getMajorTickSpacing(); | ||
| 1045 | } | ||
| 1046 | } | ||
| 1047 | |||
| 1048 | g.translate( 0, -tickBounds.y); | ||
| 1049 | } else { | ||
| 1050 | g.translate(tickBounds.x, 0); | ||
| 1051 | |||
| 1052 | if (slider.getMinorTickSpacing() > 0) { | ||
| 1053 | int offset = 0; | ||
| 1054 | if(!BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 1055 | offset = tickBounds.width - tickBounds.width / 2; | ||
| 1056 | g.translate(offset, 0); | ||
| 1057 | } | ||
| 1058 | |||
| 1059 | int value = slider.getMinimum(); | ||
| 1060 | |||
| 1061 | while (value <= slider.getMaximum()) { | ||
| 1062 | int yPos = yPositionForValue(value); | ||
| 1063 | paintMinorTickForVertSlider( g, tickBounds, yPos ); | ||
| 1064 | |||
| 1065 | // Overflow checking | ||
| 1066 | if (Integer.MAX_VALUE - slider.getMinorTickSpacing() < value) { | ||
| 1067 | break; | ||
| 1068 | } | ||
| 1069 | |||
| 1070 | value += slider.getMinorTickSpacing(); | ||
| 1071 | } | ||
| 1072 | |||
| 1073 | if(!BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 1074 | g.translate(-offset, 0); | ||
| 1075 | } | ||
| 1076 | } | ||
| 1077 | |||
| 1078 | if (slider.getMajorTickSpacing() > 0) { | ||
| 1079 | if(!BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 1080 | g.translate(2, 0); | ||
| 1081 | } | ||
| 1082 | |||
| 1083 | int value = slider.getMinimum(); | ||
| 1084 | |||
| 1085 | while (value <= slider.getMaximum()) { | ||
| 1086 | int yPos = yPositionForValue(value); | ||
| 1087 | paintMajorTickForVertSlider( g, tickBounds, yPos ); | ||
| 1088 | |||
| 1089 | // Overflow checking | ||
| 1090 | if (Integer.MAX_VALUE - slider.getMajorTickSpacing() < value) { | ||
| 1091 | break; | ||
| 1092 | } | ||
| 1093 | |||
| 1094 | value += slider.getMajorTickSpacing(); | ||
| 1095 | } | ||
| 1096 | |||
| 1097 | if(!BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 1098 | g.translate(-2, 0); | ||
| 1099 | } | ||
| 1100 | } | ||
| 1101 | g.translate(-tickBounds.x, 0); | ||
| 1102 | } | ||
| 1103 | } | ||
| 1104 | |||
| 1105 | protected void paintMinorTickForHorizSlider( Graphics g, Rectangle tickBounds, int x ) { | ||
| 1106 | g.drawLine( x, 0, x, tickBounds.height / 2 - 1 ); | ||
| 1107 | } | ||
| 1108 | |||
| 1109 | protected void paintMajorTickForHorizSlider( Graphics g, Rectangle tickBounds, int x ) { | ||
| 1110 | g.drawLine( x, 0, x, tickBounds.height - 2 ); | ||
| 1111 | } | ||
| 1112 | |||
| 1113 | protected void paintMinorTickForVertSlider( Graphics g, Rectangle tickBounds, int y ) { | ||
| 1114 | g.drawLine( 0, y, tickBounds.width / 2 - 1, y ); | ||
| 1115 | } | ||
| 1116 | |||
| 1117 | protected void paintMajorTickForVertSlider( Graphics g, Rectangle tickBounds, int y ) { | ||
| 1118 | g.drawLine( 0, y, tickBounds.width - 2, y ); | ||
| 1119 | } | ||
| 1120 | |||
| 1121 | public void paintLabels( Graphics g ) { | ||
| 1122 | Rectangle labelBounds = labelRect; | ||
| 1123 | |||
| 1124 | Dictionary dictionary = slider.getLabelTable(); | ||
| 1125 | if ( dictionary != null ) { | ||
| 1126 | Enumeration keys = dictionary.keys(); | ||
| 1127 | int minValue = slider.getMinimum(); | ||
| 1128 | int maxValue = slider.getMaximum(); | ||
| 1129 | boolean enabled = slider.isEnabled(); | ||
| 1130 | while ( keys.hasMoreElements() ) { | ||
| 1131 | Integer key = (Integer)keys.nextElement(); | ||
| 1132 | int value = key.intValue(); | ||
| 1133 | if (value >= minValue && value <= maxValue) { | ||
| 1134 | JComponent label = (JComponent) dictionary.get(key); | ||
| 1135 | label.setEnabled(enabled); | ||
| 1136 | |||
| 1137 | if (label instanceof JLabel) { | ||
| 1138 | Icon icon = label.isEnabled() ? ((JLabel) label).getIcon() : ((JLabel) label).getDisabledIcon(); | ||
| 1139 | |||
| 1140 | if (icon instanceof ImageIcon) { | ||
| 1141 | // Register Slider as an image observer. It allows to catch notifications about | ||
| 1142 | // image changes (e.g. gif animation) | ||
| 1143 | Toolkit.getDefaultToolkit().checkImage(((ImageIcon) icon).getImage(), -1, -1, slider); | ||
| 1144 | } | ||
| 1145 | } | ||
| 1146 | |||
| 1147 | if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 1148 | g.translate( 0, labelBounds.y ); | ||
| 1149 | paintHorizontalLabel( g, value, label ); | ||
| 1150 | g.translate( 0, -labelBounds.y ); | ||
| 1151 | } | ||
| 1152 | else { | ||
| 1153 | int offset = 0; | ||
| 1154 | if (!BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 1155 | offset = labelBounds.width - | ||
| 1156 | label.getPreferredSize().width; | ||
| 1157 | } | ||
| 1158 | g.translate( labelBounds.x + offset, 0 ); | ||
| 1159 | paintVerticalLabel( g, value, label ); | ||
| 1160 | g.translate( -labelBounds.x - offset, 0 ); | ||
| 1161 | } | ||
| 1162 | } | ||
| 1163 | } | ||
| 1164 | } | ||
| 1165 | |||
| 1166 | } | ||
| 1167 | |||
| 1168 | /** | ||
| 1169 | * Called for every label in the label table. Used to draw the labels for horizontal sliders. | ||
| 1170 | * The graphics have been translated to labelRect.y already. | ||
| 1171 | * @see JSlider#setLabelTable | ||
| 1172 | */ | ||
| 1173 | protected void paintHorizontalLabel( Graphics g, int value, Component label ) { | ||
| 1174 | int labelCenter = xPositionForValue( value ); | ||
| 1175 | int labelLeft = labelCenter - (label.getPreferredSize().width / 2); | ||
| 1176 | g.translate( labelLeft, 0 ); | ||
| 1177 | label.paint( g ); | ||
| 1178 | g.translate( -labelLeft, 0 ); | ||
| 1179 | } | ||
| 1180 | |||
| 1181 | /** | ||
| 1182 | * Called for every label in the label table. Used to draw the labels for vertical sliders. | ||
| 1183 | * The graphics have been translated to labelRect.x already. | ||
| 1184 | * @see JSlider#setLabelTable | ||
| 1185 | */ | ||
| 1186 | protected void paintVerticalLabel( Graphics g, int value, Component label ) { | ||
| 1187 | int labelCenter = yPositionForValue( value ); | ||
| 1188 | int labelTop = labelCenter - (label.getPreferredSize().height / 2); | ||
| 1189 | g.translate( 0, labelTop ); | ||
| 1190 | label.paint( g ); | ||
| 1191 | g.translate( 0, -labelTop ); | ||
| 1192 | } | ||
| 1193 | |||
| 1194 | public void paintThumb(Graphics g) { | ||
| 1195 | Rectangle knobBounds = thumbRect; | ||
| 1196 | int w = knobBounds.width; | ||
| 1197 | int h = knobBounds.height; | ||
| 1198 | |||
| 1199 | g.translate(knobBounds.x, knobBounds.y); | ||
| 1200 | |||
| 1201 | if ( slider.isEnabled() ) { | ||
| 1202 | g.setColor(slider.getBackground()); | ||
| 1203 | } | ||
| 1204 | else { | ||
| 1205 | g.setColor(slider.getBackground().darker()); | ||
| 1206 | } | ||
| 1207 | |||
| 1208 | Boolean paintThumbArrowShape = | ||
| 1209 | (Boolean)slider.getClientProperty("Slider.paintThumbArrowShape"); | ||
| 1210 | |||
| 1211 | if ((!slider.getPaintTicks() && paintThumbArrowShape == null) || | ||
| 1212 | paintThumbArrowShape == Boolean.FALSE) { | ||
| 1213 | |||
| 1214 | // "plain" version | ||
| 1215 | g.fillRect(0, 0, w, h); | ||
| 1216 | |||
| 1217 | g.setColor(Color.black); | ||
| 1218 | g.drawLine(0, h-1, w-1, h-1); | ||
| 1219 | g.drawLine(w-1, 0, w-1, h-1); | ||
| 1220 | |||
| 1221 | g.setColor(highlightColor); | ||
| 1222 | g.drawLine(0, 0, 0, h-2); | ||
| 1223 | g.drawLine(1, 0, w-2, 0); | ||
| 1224 | |||
| 1225 | g.setColor(shadowColor); | ||
| 1226 | g.drawLine(1, h-2, w-2, h-2); | ||
| 1227 | g.drawLine(w-2, 1, w-2, h-3); | ||
| 1228 | } | ||
| 1229 | else if ( slider.getOrientation() == JSlider.HORIZONTAL ) { | ||
| 1230 | int cw = w / 2; | ||
| 1231 | g.fillRect(1, 1, w-3, h-1-cw); | ||
| 1232 | Polygon p = new Polygon(); | ||
| 1233 | p.addPoint(1, h-cw); | ||
| 1234 | p.addPoint(cw-1, h-1); | ||
| 1235 | p.addPoint(w-2, h-1-cw); | ||
| 1236 | g.fillPolygon(p); | ||
| 1237 | |||
| 1238 | g.setColor(highlightColor); | ||
| 1239 | g.drawLine(0, 0, w-2, 0); | ||
| 1240 | g.drawLine(0, 1, 0, h-1-cw); | ||
| 1241 | g.drawLine(0, h-cw, cw-1, h-1); | ||
| 1242 | |||
| 1243 | g.setColor(Color.black); | ||
| 1244 | g.drawLine(w-1, 0, w-1, h-2-cw); | ||
| 1245 | g.drawLine(w-1, h-1-cw, w-1-cw, h-1); | ||
| 1246 | |||
| 1247 | g.setColor(shadowColor); | ||
| 1248 | g.drawLine(w-2, 1, w-2, h-2-cw); | ||
| 1249 | g.drawLine(w-2, h-1-cw, w-1-cw, h-2); | ||
| 1250 | } | ||
| 1251 | else { // vertical | ||
| 1252 | int cw = h / 2; | ||
| 1253 | if(BasicGraphicsUtils.isLeftToRight(slider)) { | ||
| 1254 | g.fillRect(1, 1, w-1-cw, h-3); | ||
| 1255 | Polygon p = new Polygon(); | ||
| 1256 | p.addPoint(w-cw-1, 0); | ||
| 1257 | p.addPoint(w-1, cw); | ||
| 1258 | p.addPoint(w-1-cw, h-2); | ||
| 1259 | g.fillPolygon(p); | ||
| 1260 | |||
| 1261 | g.setColor(highlightColor); | ||
| 1262 | g.drawLine(0, 0, 0, h - 2); // left | ||
| 1263 | g.drawLine(1, 0, w-1-cw, 0); // top | ||
| 1264 | g.drawLine(w-cw-1, 0, w-1, cw); // top slant | ||
| 1265 | |||
| 1266 | g.setColor(Color.black); | ||
| 1267 | g.drawLine(0, h-1, w-2-cw, h-1); // bottom | ||
| 1268 | g.drawLine(w-1-cw, h-1, w-1, h-1-cw); // bottom slant | ||
| 1269 | |||
| 1270 | g.setColor(shadowColor); | ||
| 1271 | g.drawLine(1, h-2, w-2-cw, h-2 ); // bottom | ||
| 1272 | g.drawLine(w-1-cw, h-2, w-2, h-cw-1 ); // bottom slant | ||
| 1273 | } | ||
| 1274 | else { | ||
| 1275 | g.fillRect(5, 1, w-1-cw, h-3); | ||
| 1276 | Polygon p = new Polygon(); | ||
| 1277 | p.addPoint(cw, 0); | ||
| 1278 | p.addPoint(0, cw); | ||
| 1279 | p.addPoint(cw, h-2); | ||
| 1280 | g.fillPolygon(p); | ||
| 1281 | |||
| 1282 | g.setColor(highlightColor); | ||
| 1283 | g.drawLine(cw-1, 0, w-2, 0); // top | ||
| 1284 | g.drawLine(0, cw, cw, 0); // top slant | ||
| 1285 | |||
| 1286 | g.setColor(Color.black); | ||
| 1287 | g.drawLine(0, h-1-cw, cw, h-1 ); // bottom slant | ||
| 1288 | g.drawLine(cw, h-1, w-1, h-1); // bottom | ||
| 1289 | |||
| 1290 | g.setColor(shadowColor); | ||
| 1291 | g.drawLine(cw, h-2, w-2, h-2 ); // bottom | ||
| 1292 | g.drawLine(w-1, 1, w-1, h-2 ); // right | ||
| 1293 | } | ||
| 1294 | } | ||
| 1295 | |||
| 1296 | g.translate(-knobBounds.x, -knobBounds.y); | ||
| 1297 | } | ||
| 1298 | |||
| 1299 | // Used exclusively by setThumbLocation() | ||
| 1300 | private static Rectangle unionRect = new Rectangle(); | ||
| 1301 | |||
| 1302 | public void setThumbLocation(int x, int y) { | ||
| 1303 | unionRect.setBounds( thumbRect ); | ||
| 1304 | |||
| 1305 | thumbRect.setLocation( x, y ); | ||
| 1306 | |||
| 1307 | SwingUtilities.computeUnion( thumbRect.x, thumbRect.y, thumbRect.width, thumbRect.height, unionRect ); | ||
| 1308 | slider.repaint( unionRect.x, unionRect.y, unionRect.width, unionRect.height ); | ||
| 1309 | } | ||
| 1310 | |||
| 1311 | public void scrollByBlock(int direction) { | ||
| 1312 | synchronized(slider) { | ||
| 1313 | int blockIncrement = | ||
| 1314 | (slider.getMaximum() - slider.getMinimum()) / 10; | ||
| 1315 | if (blockIncrement == 0) { | ||
| 1316 | blockIncrement = 1; | ||
| 1317 | } | ||
| 1318 | |||
| 1319 | if (slider.getSnapToTicks()) { | ||
| 1320 | int tickSpacing = getTickSpacing(); | ||
| 1321 | |||
| 1322 | if (blockIncrement < tickSpacing) { | ||
| 1323 | blockIncrement = tickSpacing; | ||
| 1324 | } | ||
| 1325 | } | ||
| 1326 | |||
| 1327 | int delta = blockIncrement * ((direction > 0) ? POSITIVE_SCROLL : NEGATIVE_SCROLL); | ||
| 1328 | slider.setValue(slider.getValue() + delta); | ||
| 1329 | } | ||
| 1330 | } | ||
| 1331 | |||
| 1332 | public void scrollByUnit(int direction) { | ||
| 1333 | synchronized(slider) { | ||
| 1334 | int delta = ((direction > 0) ? POSITIVE_SCROLL : NEGATIVE_SCROLL); | ||
| 1335 | |||
| 1336 | if (slider.getSnapToTicks()) { | ||
| 1337 | delta *= getTickSpacing(); | ||
| 1338 | } | ||
| 1339 | |||
| 1340 | slider.setValue(slider.getValue() + delta); | ||
| 1341 | } | ||
| 1342 | } | ||
| 1343 | |||
| 1344 | /** | ||
| 1345 | * This function is called when a mousePressed was detected in the track, not | ||
| 1346 | * in the thumb. The default behavior is to scroll by block. You can | ||
| 1347 | * override this method to stop it from scrolling or to add additional behavior. | ||
| 1348 | */ | ||
| 1349 | protected void scrollDueToClickInTrack( int dir ) { | ||
| 1350 | scrollByBlock( dir ); | ||
| 1351 | } | ||
| 1352 | |||
| 1353 | protected int xPositionForValue( int value ) { | ||
| 1354 | int min = slider.getMinimum(); | ||
| 1355 | int max = slider.getMaximum(); | ||
| 1356 | int trackLength = trackRect.width; | ||
| 1357 | double valueRange = (double)max - (double)min; | ||
| 1358 | double pixelsPerValue = (double)trackLength / valueRange; | ||
| 1359 | int trackLeft = trackRect.x; | ||
| 1360 | int trackRight = trackRect.x + (trackRect.width - 1); | ||
| 1361 | int xPosition; | ||
| 1362 | |||
| 1363 | if ( !drawInverted() ) { | ||
| 1364 | xPosition = trackLeft; | ||
| 1365 | xPosition += Math.round( pixelsPerValue * ((double)value - min) ); | ||
| 1366 | } | ||
| 1367 | else { | ||
| 1368 | xPosition = trackRight; | ||
| 1369 | xPosition -= Math.round( pixelsPerValue * ((double)value - min) ); | ||
| 1370 | } | ||
| 1371 | |||
| 1372 | xPosition = Math.max( trackLeft, xPosition ); | ||
| 1373 | xPosition = Math.min( trackRight, xPosition ); | ||
| 1374 | |||
| 1375 | return xPosition; | ||
| 1376 | } | ||
| 1377 | |||
| 1378 | protected int yPositionForValue( int value ) { | ||
| 1379 | return yPositionForValue(value, trackRect.y, trackRect.height); | ||
| 1380 | } | ||
| 1381 | |||
| 1382 | /** | ||
| 1383 | * Returns the y location for the specified value. No checking is | ||
| 1384 | * done on the arguments. In particular if <code>trackHeight</code> is | ||
| 1385 | * negative undefined results may occur. | ||
| 1386 | * | ||
| 1387 | * @param value the slider value to get the location for | ||
| 1388 | * @param trackY y-origin of the track | ||
| 1389 | * @param trackHeight the height of the track | ||
| 1390 | * @since 1.6 | ||
| 1391 | */ | ||
| 1392 | protected int yPositionForValue(int value, int trackY, int trackHeight) { | ||
| 1393 | int min = slider.getMinimum(); | ||
| 1394 | int max = slider.getMaximum(); | ||
| 1395 | double valueRange = (double)max - (double)min; | ||
| 1396 | double pixelsPerValue = (double)trackHeight / valueRange; | ||
| 1397 | int trackBottom = trackY + (trackHeight - 1); | ||
| 1398 | int yPosition; | ||
| 1399 | |||
| 1400 | if ( !drawInverted() ) { | ||
| 1401 | yPosition = trackY; | ||
| 1402 | yPosition += Math.round( pixelsPerValue * ((double)max - value ) ); | ||
| 1403 | } | ||
| 1404 | else { | ||
| 1405 | yPosition = trackY; | ||
| 1406 | yPosition += Math.round( pixelsPerValue * ((double)value - min) ); | ||
| 1407 | } | ||
| 1408 | |||
| 1409 | yPosition = Math.max( trackY, yPosition ); | ||
| 1410 | yPosition = Math.min( trackBottom, yPosition ); | ||
| 1411 | |||
| 1412 | return yPosition; | ||
| 1413 | } | ||
| 1414 | |||
| 1415 | /** | ||
| 1416 | * Returns the value at the y position. If {@code yPos} is beyond the | ||
| 1417 | * track at the the bottom or the top, this method sets the value to either | ||
| 1418 | * the minimum or maximum value of the slider, depending on if the slider | ||
| 1419 | * is inverted or not. | ||
| 1420 | */ | ||
| 1421 | public int valueForYPosition( int yPos ) { | ||
| 1422 | int value; | ||
| 1423 | final int minValue = slider.getMinimum(); | ||
| 1424 | final int maxValue = slider.getMaximum(); | ||
| 1425 | final int trackLength = trackRect.height; | ||
| 1426 | final int trackTop = trackRect.y; | ||
| 1427 | final int trackBottom = trackRect.y + (trackRect.height - 1); | ||
| 1428 | |||
| 1429 | if ( yPos <= trackTop ) { | ||
| 1430 | value = drawInverted() ? minValue : maxValue; | ||
| 1431 | } | ||
| 1432 | else if ( yPos >= trackBottom ) { | ||
| 1433 | value = drawInverted() ? maxValue : minValue; | ||
| 1434 | } | ||
| 1435 | else { | ||
| 1436 | int distanceFromTrackTop = yPos - trackTop; | ||
| 1437 | double valueRange = (double)maxValue - (double)minValue; | ||
| 1438 | double valuePerPixel = valueRange / (double)trackLength; | ||
| 1439 | int valueFromTrackTop = (int)Math.round( distanceFromTrackTop * valuePerPixel ); | ||
| 1440 | |||
| 1441 | value = drawInverted() ? minValue + valueFromTrackTop : maxValue - valueFromTrackTop; | ||
| 1442 | } | ||
| 1443 | |||
| 1444 | return value; | ||
| 1445 | } | ||
| 1446 | |||
| 1447 | /** | ||
| 1448 | * Returns the value at the x position. If {@code xPos} is beyond the | ||
| 1449 | * track at the left or the right, this method sets the value to either the | ||
| 1450 | * minimum or maximum value of the slider, depending on if the slider is | ||
| 1451 | * inverted or not. | ||
| 1452 | */ | ||
| 1453 | public int valueForXPosition( int xPos ) { | ||
| 1454 | int value; | ||
| 1455 | final int minValue = slider.getMinimum(); | ||
| 1456 | final int maxValue = slider.getMaximum(); | ||
| 1457 | final int trackLength = trackRect.width; | ||
| 1458 | final int trackLeft = trackRect.x; | ||
| 1459 | final int trackRight = trackRect.x + (trackRect.width - 1); | ||
| 1460 | |||
| 1461 | if ( xPos <= trackLeft ) { | ||
| 1462 | value = drawInverted() ? maxValue : minValue; | ||
| 1463 | } | ||
| 1464 | else if ( xPos >= trackRight ) { | ||
| 1465 | value = drawInverted() ? minValue : maxValue; | ||
| 1466 | } | ||
| 1467 | else { | ||
| 1468 | int distanceFromTrackLeft = xPos - trackLeft; | ||
| 1469 | double valueRange = (double)maxValue - (double)minValue; | ||
| 1470 | double valuePerPixel = valueRange / (double)trackLength; | ||
| 1471 | int valueFromTrackLeft = (int)Math.round( distanceFromTrackLeft * valuePerPixel ); | ||
| 1472 | |||
| 1473 | value = drawInverted() ? maxValue - valueFromTrackLeft : | ||
| 1474 | minValue + valueFromTrackLeft; | ||
| 1475 | } | ||
| 1476 | |||
| 1477 | return value; | ||
| 1478 | } | ||
| 1479 | |||
| 1480 | |||
| 1481 | private class Handler implements ChangeListener, | ||
| 1482 | ComponentListener, FocusListener, PropertyChangeListener { | ||
| 1483 | // Change Handler | ||
| 1484 | public void stateChanged(ChangeEvent e) { | ||
| 1485 | if (!isDragging) { | ||
| 1486 | calculateThumbLocation(); | ||
| 1487 | slider.repaint(); | ||
| 1488 | } | ||
| 1489 | lastValue = slider.getValue(); | ||
| 1490 | } | ||
| 1491 | |||
| 1492 | // Component Handler | ||
| 1493 | public void componentHidden(ComponentEvent e) { } | ||
| 1494 | public void componentMoved(ComponentEvent e) { } | ||
| 1495 | public void componentResized(ComponentEvent e) { | ||
| 1496 | calculateGeometry(); | ||
| 1497 | slider.repaint(); | ||
| 1498 | } | ||
| 1499 | public void componentShown(ComponentEvent e) { } | ||
| 1500 | |||
| 1501 | // Focus Handler | ||
| 1502 | public void focusGained(FocusEvent e) { slider.repaint(); } | ||
| 1503 | public void focusLost(FocusEvent e) { slider.repaint(); } | ||
| 1504 | |||
| 1505 | // Property Change Handler | ||
| 1506 | public void propertyChange(PropertyChangeEvent e) { | ||
| 1507 | String propertyName = e.getPropertyName(); | ||
| 1508 | if (propertyName == "orientation" || | ||
| 1509 | propertyName == "inverted" || | ||
| 1510 | propertyName == "labelTable" || | ||
| 1511 | propertyName == "majorTickSpacing" || | ||
| 1512 | propertyName == "minorTickSpacing" || | ||
| 1513 | propertyName == "paintTicks" || | ||
| 1514 | propertyName == "paintTrack" || | ||
| 1515 | propertyName == "font" || | ||
| 1516 | propertyName == "paintLabels" || | ||
| 1517 | propertyName == "Slider.paintThumbArrowShape") { | ||
| 1518 | checkedLabelBaselines = false; | ||
| 1519 | calculateGeometry(); | ||
| 1520 | slider.repaint(); | ||
| 1521 | } else if (propertyName == "componentOrientation") { | ||
| 1522 | calculateGeometry(); | ||
| 1523 | slider.repaint(); | ||
| 1524 | InputMap km = getInputMap(JComponent.WHEN_FOCUSED, slider); | ||
| 1525 | SwingUtilities.replaceUIInputMap(slider, | ||
| 1526 | JComponent.WHEN_FOCUSED, km); | ||
| 1527 | } else if (propertyName == "model") { | ||
| 1528 | ((BoundedRangeModel)e.getOldValue()).removeChangeListener( | ||
| 1529 | changeListener); | ||
| 1530 | ((BoundedRangeModel)e.getNewValue()).addChangeListener( | ||
| 1531 | changeListener); | ||
| 1532 | calculateThumbLocation(); | ||
| 1533 | slider.repaint(); | ||
| 1534 | } | ||
| 1535 | } | ||
| 1536 | } | ||
| 1537 | |||
| 1538 | ///////////////////////////////////////////////////////////////////////// | ||
| 1539 | /// Model Listener Class | ||
| 1540 | ///////////////////////////////////////////////////////////////////////// | ||
| 1541 | /** | ||
| 1542 | * Data model listener. | ||
| 1543 | * | ||
| 1544 | * This class should be treated as a "protected" inner class. | ||
| 1545 | * Instantiate it only within subclasses of <Foo>. | ||
| 1546 | */ | ||
| 1547 | public class ChangeHandler implements ChangeListener { | ||
| 1548 | // NOTE: This class exists only for backward compatability. All | ||
| 1549 | // its functionality has been moved into Handler. If you need to add | ||
| 1550 | // new functionality add it to the Handler, but make sure this | ||
| 1551 | // class calls into the Handler. | ||
| 1552 | public void stateChanged(ChangeEvent e) { | ||
| 1553 | getHandler().stateChanged(e); | ||
| 1554 | } | ||
| 1555 | } | ||
| 1556 | |||
| 1557 | ///////////////////////////////////////////////////////////////////////// | ||
| 1558 | /// Track Listener Class | ||
| 1559 | ///////////////////////////////////////////////////////////////////////// | ||
| 1560 | /** | ||
| 1561 | * Track mouse movements. | ||
| 1562 | * | ||
| 1563 | * This class should be treated as a "protected" inner class. | ||
| 1564 | * Instantiate it only within subclasses of <Foo>. | ||
| 1565 | */ | ||
| 1566 | public class TrackListener extends MouseInputAdapter { | ||
| 1567 | protected transient int offset; | ||
| 1568 | protected transient int currentMouseX, currentMouseY; | ||
| 1569 | |||
| 1570 | public void mouseReleased(MouseEvent e) { | ||
| 1571 | if (!slider.isEnabled()) { | ||
| 1572 | return; | ||
| 1573 | } | ||
| 1574 | |||
| 1575 | offset = 0; | ||
| 1576 | scrollTimer.stop(); | ||
| 1577 | |||
| 1578 | isDragging = false; | ||
| 1579 | slider.setValueIsAdjusting(false); | ||
| 1580 | slider.repaint(); | ||
| 1581 | } | ||
| 1582 | |||
| 1583 | /** | ||
| 1584 | * If the mouse is pressed above the "thumb" component | ||
| 1585 | * then reduce the scrollbars value by one page ("page up"), | ||
| 1586 | * otherwise increase it by one page. If there is no | ||
| 1587 | * thumb then page up if the mouse is in the upper half | ||
| 1588 | * of the track. | ||
| 1589 | */ | ||
| 1590 | public void mousePressed(MouseEvent e) { | ||
| 1591 | if (!slider.isEnabled()) { | ||
| 1592 | return; | ||
| 1593 | } | ||
| 1594 | |||
| 1595 | // We should recalculate geometry just before | ||
| 1596 | // calculation of the thumb movement direction. | ||
| 1597 | // It is important for the case, when JSlider | ||
| 1598 | // is a cell editor in JTable. See 6348946. | ||
| 1599 | calculateGeometry(); | ||
| 1600 | |||
| 1601 | currentMouseX = e.getX(); | ||
| 1602 | currentMouseY = e.getY(); | ||
| 1603 | |||
| 1604 | if (slider.isRequestFocusEnabled()) { | ||
| 1605 | slider.requestFocus(); | ||
| 1606 | } | ||
| 1607 | |||
| 1608 | // Clicked in the Thumb area? | ||
| 1609 | if (thumbRect.contains(currentMouseX, currentMouseY)) { | ||
| 1610 | if (UIManager.getBoolean("Slider.onlyLeftMouseButtonDrag") | ||
| 1611 | && !SwingUtilities.isLeftMouseButton(e)) { | ||
| 1612 | return; | ||
| 1613 | } | ||
| 1614 | |||
| 1615 | switch (slider.getOrientation()) { | ||
| 1616 | case JSlider.VERTICAL: | ||
| 1617 | offset = currentMouseY - thumbRect.y; | ||
| 1618 | break; | ||
| 1619 | case JSlider.HORIZONTAL: | ||
| 1620 | offset = currentMouseX - thumbRect.x; | ||
| 1621 | break; | ||
| 1622 | } | ||
| 1623 | isDragging = true; | ||
| 1624 | return; | ||
| 1625 | } | ||
| 1626 | |||
| 1627 | if (!SwingUtilities.isLeftMouseButton(e)) { | ||
| 1628 | return; | ||
| 1629 | } | ||
| 1630 | |||
| 1631 | isDragging = false; | ||
| 1632 | slider.setValueIsAdjusting(true); | ||
| 1633 | |||
| 1634 | Dimension sbSize = slider.getSize(); | ||
| 1635 | int direction = POSITIVE_SCROLL; | ||
| 1636 | |||
| 1637 | switch (slider.getOrientation()) { | ||
| 1638 | case JSlider.VERTICAL: | ||
| 1639 | if ( thumbRect.isEmpty() ) { | ||
| 1640 | int scrollbarCenter = sbSize.height / 2; | ||
| 1641 | if ( !drawInverted() ) { | ||
| 1642 | direction = (currentMouseY < scrollbarCenter) ? | ||
| 1643 | POSITIVE_SCROLL : NEGATIVE_SCROLL; | ||
| 1644 | } | ||
| 1645 | else { | ||
| 1646 | direction = (currentMouseY < scrollbarCenter) ? | ||
| 1647 | NEGATIVE_SCROLL : POSITIVE_SCROLL; | ||
| 1648 | } | ||
| 1649 | } | ||
| 1650 | else { | ||
| 1651 | int thumbY = thumbRect.y; | ||
| 1652 | if ( !drawInverted() ) { | ||
| 1653 | direction = (currentMouseY < thumbY) ? | ||
| 1654 | POSITIVE_SCROLL : NEGATIVE_SCROLL; | ||
| 1655 | } | ||
| 1656 | else { | ||
| 1657 | direction = (currentMouseY < thumbY) ? | ||
| 1658 | NEGATIVE_SCROLL : POSITIVE_SCROLL; | ||
| 1659 | } | ||
| 1660 | } | ||
| 1661 | break; | ||
| 1662 | case JSlider.HORIZONTAL: | ||
| 1663 | if ( thumbRect.isEmpty() ) { | ||
| 1664 | int scrollbarCenter = sbSize.width / 2; | ||
| 1665 | if ( !drawInverted() ) { | ||
| 1666 | direction = (currentMouseX < scrollbarCenter) ? | ||
| 1667 | NEGATIVE_SCROLL : POSITIVE_SCROLL; | ||
| 1668 | } | ||
| 1669 | else { | ||
| 1670 | direction = (currentMouseX < scrollbarCenter) ? | ||
| 1671 | POSITIVE_SCROLL : NEGATIVE_SCROLL; | ||
| 1672 | } | ||
| 1673 | } | ||
| 1674 | else { | ||
| 1675 | int thumbX = thumbRect.x; | ||
| 1676 | if ( !drawInverted() ) { | ||
| 1677 | direction = (currentMouseX < thumbX) ? | ||
| 1678 | NEGATIVE_SCROLL : POSITIVE_SCROLL; | ||
| 1679 | } | ||
| 1680 | else { | ||
| 1681 | direction = (currentMouseX < thumbX) ? | ||
| 1682 | POSITIVE_SCROLL : NEGATIVE_SCROLL; | ||
| 1683 | } | ||
| 1684 | } | ||
| 1685 | break; | ||
| 1686 | } | ||
| 1687 | |||
| 1688 | if (shouldScroll(direction)) { | ||
| 1689 | scrollDueToClickInTrack(direction); | ||
| 1690 | } | ||
| 1691 | if (shouldScroll(direction)) { | ||
| 1692 | scrollTimer.stop(); | ||
| 1693 | scrollListener.setDirection(direction); | ||
| 1694 | scrollTimer.start(); | ||
| 1695 | } | ||
| 1696 | } | ||
| 1697 | |||
| 1698 | public boolean shouldScroll(int direction) { | ||
| 1699 | Rectangle r = thumbRect; | ||
| 1700 | if (slider.getOrientation() == JSlider.VERTICAL) { | ||
| 1701 | if (drawInverted() ? direction < 0 : direction > 0) { | ||
| 1702 | if (r.y <= currentMouseY) { | ||
| 1703 | return false; | ||
| 1704 | } | ||
| 1705 | } | ||
| 1706 | else if (r.y + r.height >= currentMouseY) { | ||
| 1707 | return false; | ||
| 1708 | } | ||
| 1709 | } | ||
| 1710 | else { | ||
| 1711 | if (drawInverted() ? direction < 0 : direction > 0) { | ||
| 1712 | if (r.x + r.width >= currentMouseX) { | ||
| 1713 | return false; | ||
| 1714 | } | ||
| 1715 | } | ||
| 1716 | else if (r.x <= currentMouseX) { | ||
| 1717 | return false; | ||
| 1718 | } | ||
| 1719 | } | ||
| 1720 | |||
| 1721 | if (direction > 0 && slider.getValue() + slider.getExtent() >= | ||
| 1722 | slider.getMaximum()) { | ||
| 1723 | return false; | ||
| 1724 | } | ||
| 1725 | else if (direction < 0 && slider.getValue() <= | ||
| 1726 | slider.getMinimum()) { | ||
| 1727 | return false; | ||
| 1728 | } | ||
| 1729 | |||
| 1730 | return true; | ||
| 1731 | } | ||
| 1732 | |||
| 1733 | /** | ||
| 1734 | * Set the models value to the position of the top/left | ||
| 1735 | * of the thumb relative to the origin of the track. | ||
| 1736 | */ | ||
| 1737 | public void mouseDragged(MouseEvent e) { | ||
| 1738 | int thumbMiddle; | ||
| 1739 | |||
| 1740 | if (!slider.isEnabled()) { | ||
| 1741 | return; | ||
| 1742 | } | ||
| 1743 | |||
| 1744 | currentMouseX = e.getX(); | ||
| 1745 | currentMouseY = e.getY(); | ||
| 1746 | |||
| 1747 | if (!isDragging) { | ||
| 1748 | return; | ||
| 1749 | } | ||
| 1750 | |||
| 1751 | slider.setValueIsAdjusting(true); | ||
| 1752 | |||
| 1753 | switch (slider.getOrientation()) { | ||
| 1754 | case JSlider.VERTICAL: | ||
| 1755 | int halfThumbHeight = thumbRect.height / 2; | ||
| 1756 | int thumbTop = e.getY() - offset; | ||
| 1757 | int trackTop = trackRect.y; | ||
| 1758 | int trackBottom = trackRect.y + (trackRect.height - 1); | ||
| 1759 | int vMax = yPositionForValue(slider.getMaximum() - | ||
| 1760 | slider.getExtent()); | ||
| 1761 | |||
| 1762 | if (drawInverted()) { | ||
| 1763 | trackBottom = vMax; | ||
| 1764 | } | ||
| 1765 | else { | ||
| 1766 | trackTop = vMax; | ||
| 1767 | } | ||
| 1768 | thumbTop = Math.max(thumbTop, trackTop - halfThumbHeight); | ||
| 1769 | thumbTop = Math.min(thumbTop, trackBottom - halfThumbHeight); | ||
| 1770 | |||
| 1771 | setThumbLocation(thumbRect.x, thumbTop); | ||
| 1772 | |||
| 1773 | thumbMiddle = thumbTop + halfThumbHeight; | ||
| 1774 | slider.setValue( valueForYPosition( thumbMiddle ) ); | ||
| 1775 | break; | ||
| 1776 | case JSlider.HORIZONTAL: | ||
| 1777 | int halfThumbWidth = thumbRect.width / 2; | ||
| 1778 | int thumbLeft = e.getX() - offset; | ||
| 1779 | int trackLeft = trackRect.x; | ||
| 1780 | int trackRight = trackRect.x + (trackRect.width - 1); | ||
| 1781 | int hMax = xPositionForValue(slider.getMaximum() - | ||
| 1782 | slider.getExtent()); | ||
| 1783 | |||
| 1784 | if (drawInverted()) { | ||
| 1785 | trackLeft = hMax; | ||
| 1786 | } | ||
| 1787 | else { | ||
| 1788 | trackRight = hMax; | ||
| 1789 | } | ||
| 1790 | thumbLeft = Math.max(thumbLeft, trackLeft - halfThumbWidth); | ||
| 1791 | thumbLeft = Math.min(thumbLeft, trackRight - halfThumbWidth); | ||
| 1792 | |||
| 1793 | setThumbLocation(thumbLeft, thumbRect.y); | ||
| 1794 | |||
| 1795 | thumbMiddle = thumbLeft + halfThumbWidth; | ||
| 1796 | slider.setValue(valueForXPosition(thumbMiddle)); | ||
| 1797 | break; | ||
| 1798 | } | ||
| 1799 | } | ||
| 1800 | |||
| 1801 | public void mouseMoved(MouseEvent e) { } | ||
| 1802 | } | ||
| 1803 | |||
| 1804 | /** | ||
| 1805 | * Scroll-event listener. | ||
| 1806 | * | ||
| 1807 | * This class should be treated as a "protected" inner class. | ||
| 1808 | * Instantiate it only within subclasses of <Foo>. | ||
| 1809 | */ | ||
| 1810 | public class ScrollListener implements ActionListener { | ||
| 1811 | // changed this class to public to avoid bogus IllegalAccessException | ||
| 1812 | // bug in InternetExplorer browser. It was protected. Work around | ||
| 1813 | // for 4109432 | ||
| 1814 | int direction = POSITIVE_SCROLL; | ||
| 1815 | boolean useBlockIncrement; | ||
| 1816 | |||
| 1817 | public ScrollListener() { | ||
| 1818 | direction = POSITIVE_SCROLL; | ||
| 1819 | useBlockIncrement = true; | ||
| 1820 | } | ||
| 1821 | |||
| 1822 | public ScrollListener(int dir, boolean block) { | ||
| 1823 | direction = dir; | ||
| 1824 | useBlockIncrement = block; | ||
| 1825 | } | ||
| 1826 | |||
| 1827 | public void setDirection(int direction) { | ||
| 1828 | this.direction = direction; | ||
| 1829 | } | ||
| 1830 | |||
| 1831 | public void setScrollByBlock(boolean block) { | ||
| 1832 | this.useBlockIncrement = block; | ||
| 1833 | } | ||
| 1834 | |||
| 1835 | public void actionPerformed(ActionEvent e) { | ||
| 1836 | if (useBlockIncrement) { | ||
| 1837 | scrollByBlock(direction); | ||
| 1838 | } | ||
| 1839 | else { | ||
| 1840 | scrollByUnit(direction); | ||
| 1841 | } | ||
| 1842 | if (!trackListener.shouldScroll(direction)) { | ||
| 1843 | ((Timer)e.getSource()).stop(); | ||
| 1844 | } | ||
| 1845 | } | ||
| 1846 | } | ||
| 1847 | |||
| 1848 | /** | ||
| 1849 | * Listener for resizing events. | ||
| 1850 | * <p> | ||
| 1851 | * This class should be treated as a "protected" inner class. | ||
| 1852 | * Instantiate it only within subclasses of <Foo>. | ||
| 1853 | */ | ||
| 1854 | public class ComponentHandler extends ComponentAdapter { | ||
| 1855 | // NOTE: This class exists only for backward compatability. All | ||
| 1856 | // its functionality has been moved into Handler. If you need to add | ||
| 1857 | // new functionality add it to the Handler, but make sure this | ||
| 1858 | // class calls into the Handler. | ||
| 1859 | public void componentResized(ComponentEvent e) { | ||
| 1860 | getHandler().componentResized(e); | ||
| 1861 | } | ||
| 1862 | } | ||
| 1863 | |||
| 1864 | /** | ||
| 1865 | * Focus-change listener. | ||
| 1866 | * <p> | ||
| 1867 | * This class should be treated as a "protected" inner class. | ||
| 1868 | * Instantiate it only within subclasses of <Foo>. | ||
| 1869 | */ | ||
| 1870 | public class FocusHandler implements FocusListener { | ||
| 1871 | // NOTE: This class exists only for backward compatability. All | ||
| 1872 | // its functionality has been moved into Handler. If you need to add | ||
| 1873 | // new functionality add it to the Handler, but make sure this | ||
| 1874 | // class calls into the Handler. | ||
| 1875 | public void focusGained(FocusEvent e) { | ||
| 1876 | getHandler().focusGained(e); | ||
| 1877 | } | ||
| 1878 | |||
| 1879 | public void focusLost(FocusEvent e) { | ||
| 1880 | getHandler().focusLost(e); | ||
| 1881 | } | ||
| 1882 | } | ||
| 1883 | |||
| 1884 | /** | ||
| 1885 | * As of Java 2 platform v1.3 this undocumented class is no longer used. | ||
| 1886 | * The recommended approach to creating bindings is to use a | ||
| 1887 | * combination of an <code>ActionMap</code>, to contain the action, | ||
| 1888 | * and an <code>InputMap</code> to contain the mapping from KeyStroke | ||
| 1889 | * to action description. The InputMap is is usually described in the | ||
| 1890 | * LookAndFeel tables. | ||
| 1891 | * <p> | ||
| 1892 | * Please refer to the key bindings specification for further details. | ||
| 1893 | * <p> | ||
| 1894 | * This class should be treated as a "protected" inner class. | ||
| 1895 | * Instantiate it only within subclasses of <Foo>. | ||
| 1896 | */ | ||
| 1897 | public class ActionScroller extends AbstractAction { | ||
| 1898 | // NOTE: This class exists only for backward compatability. All | ||
| 1899 | // its functionality has been moved into Actions. If you need to add | ||
| 1900 | // new functionality add it to the Actions, but make sure this | ||
| 1901 | // class calls into the Actions. | ||
| 1902 | int dir; | ||
| 1903 | boolean block; | ||
| 1904 | JSlider slider; | ||
| 1905 | |||
| 1906 | public ActionScroller( JSlider slider, int dir, boolean block) { | ||
| 1907 | this.dir = dir; | ||
| 1908 | this.block = block; | ||
| 1909 | this.slider = slider; | ||
| 1910 | } | ||
| 1911 | |||
| 1912 | public void actionPerformed(ActionEvent e) { | ||
| 1913 | SHARED_ACTION.scroll(slider, BasicSliderUI.this, dir, block); | ||
| 1914 | } | ||
| 1915 | |||
| 1916 | public boolean isEnabled() { | ||
| 1917 | boolean b = true; | ||
| 1918 | if (slider != null) { | ||
| 1919 | b = slider.isEnabled(); | ||
| 1920 | } | ||
| 1921 | return b; | ||
| 1922 | } | ||
| 1923 | |||
| 1924 | } | ||
| 1925 | |||
| 1926 | |||
| 1927 | /** | ||
| 1928 | * A static version of the above. | ||
| 1929 | */ | ||
| 1930 | static class SharedActionScroller extends AbstractAction { | ||
| 1931 | // NOTE: This class exists only for backward compatability. All | ||
| 1932 | // its functionality has been moved into Actions. If you need to add | ||
| 1933 | // new functionality add it to the Actions, but make sure this | ||
| 1934 | // class calls into the Actions. | ||
| 1935 | int dir; | ||
| 1936 | boolean block; | ||
| 1937 | |||
| 1938 | public SharedActionScroller(int dir, boolean block) { | ||
| 1939 | this.dir = dir; | ||
| 1940 | this.block = block; | ||
| 1941 | } | ||
| 1942 | |||
| 1943 | public void actionPerformed(ActionEvent evt) { | ||
| 1944 | JSlider slider = (JSlider)evt.getSource(); | ||
| 1945 | BasicSliderUI ui = (BasicSliderUI)BasicLookAndFeel.getUIOfType( | ||
| 1946 | slider.getUI(), BasicSliderUI.class); | ||
| 1947 | if (ui == null) { | ||
| 1948 | return; | ||
| 1949 | } | ||
| 1950 | SHARED_ACTION.scroll(slider, ui, dir, block); | ||
| 1951 | } | ||
| 1952 | } | ||
| 1953 | |||
| 1954 | private static class Actions extends UIAction { | ||
| 1955 | public static final String POSITIVE_UNIT_INCREMENT = | ||
| 1956 | "positiveUnitIncrement"; | ||
| 1957 | public static final String POSITIVE_BLOCK_INCREMENT = | ||
| 1958 | "positiveBlockIncrement"; | ||
| 1959 | public static final String NEGATIVE_UNIT_INCREMENT = | ||
| 1960 | "negativeUnitIncrement"; | ||
| 1961 | public static final String NEGATIVE_BLOCK_INCREMENT = | ||
| 1962 | "negativeBlockIncrement"; | ||
| 1963 | public static final String MIN_SCROLL_INCREMENT = "minScroll"; | ||
| 1964 | public static final String MAX_SCROLL_INCREMENT = "maxScroll"; | ||
| 1965 | |||
| 1966 | |||
| 1967 | Actions() { | ||
| 1968 | super(null); | ||
| 1969 | } | ||
| 1970 | |||
| 1971 | public Actions(String name) { | ||
| 1972 | super(name); | ||
| 1973 | } | ||
| 1974 | |||
| 1975 | public void actionPerformed(ActionEvent evt) { | ||
| 1976 | JSlider slider = (JSlider)evt.getSource(); | ||
| 1977 | BasicSliderUI ui = (BasicSliderUI)BasicLookAndFeel.getUIOfType( | ||
| 1978 | slider.getUI(), BasicSliderUI.class); | ||
| 1979 | String name = getName(); | ||
| 1980 | |||
| 1981 | if (ui == null) { | ||
| 1982 | return; | ||
| 1983 | } | ||
| 1984 | if (POSITIVE_UNIT_INCREMENT == name) { | ||
| 1985 | scroll(slider, ui, POSITIVE_SCROLL, false); | ||
| 1986 | } else if (NEGATIVE_UNIT_INCREMENT == name) { | ||
| 1987 | scroll(slider, ui, NEGATIVE_SCROLL, false); | ||
| 1988 | } else if (POSITIVE_BLOCK_INCREMENT == name) { | ||
| 1989 | scroll(slider, ui, POSITIVE_SCROLL, true); | ||
| 1990 | } else if (NEGATIVE_BLOCK_INCREMENT == name) { | ||
| 1991 | scroll(slider, ui, NEGATIVE_SCROLL, true); | ||
| 1992 | } else if (MIN_SCROLL_INCREMENT == name) { | ||
| 1993 | scroll(slider, ui, MIN_SCROLL, false); | ||
| 1994 | } else if (MAX_SCROLL_INCREMENT == name) { | ||
| 1995 | scroll(slider, ui, MAX_SCROLL, false); | ||
| 1996 | } | ||
| 1997 | } | ||
| 1998 | |||
| 1999 | private void scroll(JSlider slider, BasicSliderUI ui, int direction, | ||
| 2000 | boolean isBlock) { | ||
| 2001 | boolean invert = slider.getInverted(); | ||
| 2002 | |||
| 2003 | if (direction == NEGATIVE_SCROLL || direction == POSITIVE_SCROLL) { | ||
| 2004 | if (invert) { | ||
| 2005 | direction = (direction == POSITIVE_SCROLL) ? | ||
| 2006 | NEGATIVE_SCROLL : POSITIVE_SCROLL; | ||
| 2007 | } | ||
| 2008 | |||
| 2009 | if (isBlock) { | ||
| 2010 | ui.scrollByBlock(direction); | ||
| 2011 | } else { | ||
| 2012 | ui.scrollByUnit(direction); | ||
| 2013 | } | ||
| 2014 | } else { // MIN or MAX | ||
| 2015 | if (invert) { | ||
| 2016 | direction = (direction == MIN_SCROLL) ? | ||
| 2017 | MAX_SCROLL : MIN_SCROLL; | ||
| 2018 | } | ||
| 2019 | |||
| 2020 | slider.setValue((direction == MIN_SCROLL) ? | ||
| 2021 | slider.getMinimum() : slider.getMaximum()); | ||
| 2022 | } | ||
| 2023 | } | ||
| 2024 | } | ||
| 2025 | } | ||