J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.swing.plaf.basic; |
| 27 | |
| 28 | import sun.swing.SwingUtilities2; |
| 29 | |
| 30 | import javax.swing.*; |
| 31 | import javax.swing.event.*; |
| 32 | import javax.swing.plaf.*; |
| 33 | import javax.swing.text.View; |
| 34 | |
| 35 | import java.awt.*; |
| 36 | import java.awt.event.*; |
| 37 | import java.beans.PropertyChangeListener; |
| 38 | import java.beans.PropertyChangeEvent; |
| 39 | import java.util.Vector; |
| 40 | import java.util.Hashtable; |
| 41 | |
| 42 | import sun.swing.DefaultLookup; |
| 43 | import sun.swing.UIAction; |
| 44 | |
| 45 | /** |
| 46 | * A Basic L&F implementation of TabbedPaneUI. |
| 47 | * |
| 48 | * @author Amy Fowler |
| 49 | * @author Philip Milne |
| 50 | * @author Steve Wilson |
| 51 | * @author Tom Santos |
| 52 | * @author Dave Moore |
| 53 | */ |
| 54 | public class BasicTabbedPaneUI extends TabbedPaneUI implements SwingConstants { |
| 55 | |
| 56 | |
| 57 | // Instance variables initialized at installation |
| 58 | |
| 59 | protected JTabbedPane tabPane; |
| 60 | |
| 61 | protected Color highlight; |
| 62 | protected Color lightHighlight; |
| 63 | protected Color shadow; |
| 64 | protected Color darkShadow; |
| 65 | protected Color focus; |
| 66 | private Color selectedColor; |
| 67 | |
| 68 | protected int textIconGap; |
| 69 | |
| 70 | protected int tabRunOverlay; |
| 71 | |
| 72 | protected Insets tabInsets; |
| 73 | protected Insets selectedTabPadInsets; |
| 74 | protected Insets tabAreaInsets; |
| 75 | protected Insets contentBorderInsets; |
| 76 | private boolean tabsOverlapBorder; |
| 77 | private boolean tabsOpaque = true; |
| 78 | private boolean contentOpaque = true; |
| 79 | |
| 80 | /** |
| 81 | * As of Java 2 platform v1.3 this previously undocumented field is no |
| 82 | * longer used. |
| 83 | * Key bindings are now defined by the LookAndFeel, please refer to |
| 84 | * the key bindings specification for further details. |
| 85 | * |
| 86 | * @deprecated As of Java 2 platform v1.3. |
| 87 | */ |
| 88 | @Deprecated |
| 89 | protected KeyStroke upKey; |
| 90 | /** |
| 91 | * As of Java 2 platform v1.3 this previously undocumented field is no |
| 92 | * longer used. |
| 93 | * Key bindings are now defined by the LookAndFeel, please refer to |
| 94 | * the key bindings specification for further details. |
| 95 | * |
| 96 | * @deprecated As of Java 2 platform v1.3. |
| 97 | */ |
| 98 | @Deprecated |
| 99 | protected KeyStroke downKey; |
| 100 | /** |
| 101 | * As of Java 2 platform v1.3 this previously undocumented field is no |
| 102 | * longer used. |
| 103 | * Key bindings are now defined by the LookAndFeel, please refer to |
| 104 | * the key bindings specification for further details. |
| 105 | * |
| 106 | * @deprecated As of Java 2 platform v1.3. |
| 107 | */ |
| 108 | @Deprecated |
| 109 | protected KeyStroke leftKey; |
| 110 | /** |
| 111 | * As of Java 2 platform v1.3 this previously undocumented field is no |
| 112 | * longer used. |
| 113 | * Key bindings are now defined by the LookAndFeel, please refer to |
| 114 | * the key bindings specification for further details. |
| 115 | * |
| 116 | * @deprecated As of Java 2 platform v1.3. |
| 117 | */ |
| 118 | @Deprecated |
| 119 | protected KeyStroke rightKey; |
| 120 | |
| 121 | |
| 122 | // Transient variables (recalculated each time TabbedPane is layed out) |
| 123 | |
| 124 | protected int tabRuns[] = new int[10]; |
| 125 | protected int runCount = 0; |
| 126 | protected int selectedRun = -1; |
| 127 | protected Rectangle rects[] = new Rectangle[0]; |
| 128 | protected int maxTabHeight; |
| 129 | protected int maxTabWidth; |
| 130 | |
| 131 | // Listeners |
| 132 | |
| 133 | protected ChangeListener tabChangeListener; |
| 134 | protected PropertyChangeListener propertyChangeListener; |
| 135 | protected MouseListener mouseListener; |
| 136 | protected FocusListener focusListener; |
| 137 | |
| 138 | // Private instance data |
| 139 | |
| 140 | private Insets currentPadInsets = new Insets(0,0,0,0); |
| 141 | private Insets currentTabAreaInsets = new Insets(0,0,0,0); |
| 142 | |
| 143 | private Component visibleComponent; |
| 144 | // PENDING(api): See comment for ContainerHandler |
| 145 | private Vector htmlViews; |
| 146 | |
| 147 | private Hashtable mnemonicToIndexMap; |
| 148 | |
| 149 | /** |
| 150 | * InputMap used for mnemonics. Only non-null if the JTabbedPane has |
| 151 | * mnemonics associated with it. Lazily created in initMnemonics. |
| 152 | */ |
| 153 | private InputMap mnemonicInputMap; |
| 154 | |
| 155 | // For use when tabLayoutPolicy = SCROLL_TAB_LAYOUT |
| 156 | private ScrollableTabSupport tabScroller; |
| 157 | |
| 158 | private TabContainer tabContainer; |
| 159 | |
| 160 | /** |
| 161 | * A rectangle used for general layout calculations in order |
| 162 | * to avoid constructing many new Rectangles on the fly. |
| 163 | */ |
| 164 | protected transient Rectangle calcRect = new Rectangle(0,0,0,0); |
| 165 | |
| 166 | /** |
| 167 | * Tab that has focus. |
| 168 | */ |
| 169 | private int focusIndex; |
| 170 | |
| 171 | /** |
| 172 | * Combined listeners. |
| 173 | */ |
| 174 | private Handler handler; |
| 175 | |
| 176 | /** |
| 177 | * Index of the tab the mouse is over. |
| 178 | */ |
| 179 | private int rolloverTabIndex; |
| 180 | |
| 181 | /** |
| 182 | * This is set to true when a component is added/removed from the tab |
| 183 | * pane and set to false when layout happens. If true it indicates that |
| 184 | * tabRuns is not valid and shouldn't be used. |
| 185 | */ |
| 186 | private boolean isRunsDirty; |
| 187 | |
| 188 | private boolean calculatedBaseline; |
| 189 | private int baseline; |
| 190 | |
| 191 | // UI creation |
| 192 | |
| 193 | public static ComponentUI createUI(JComponent c) { |
| 194 | return new BasicTabbedPaneUI(); |
| 195 | } |
| 196 | |
| 197 | static void loadActionMap(LazyActionMap map) { |
| 198 | map.put(new Actions(Actions.NEXT)); |
| 199 | map.put(new Actions(Actions.PREVIOUS)); |
| 200 | map.put(new Actions(Actions.RIGHT)); |
| 201 | map.put(new Actions(Actions.LEFT)); |
| 202 | map.put(new Actions(Actions.UP)); |
| 203 | map.put(new Actions(Actions.DOWN)); |
| 204 | map.put(new Actions(Actions.PAGE_UP)); |
| 205 | map.put(new Actions(Actions.PAGE_DOWN)); |
| 206 | map.put(new Actions(Actions.REQUEST_FOCUS)); |
| 207 | map.put(new Actions(Actions.REQUEST_FOCUS_FOR_VISIBLE)); |
| 208 | map.put(new Actions(Actions.SET_SELECTED)); |
| 209 | map.put(new Actions(Actions.SELECT_FOCUSED)); |
| 210 | map.put(new Actions(Actions.SCROLL_FORWARD)); |
| 211 | map.put(new Actions(Actions.SCROLL_BACKWARD)); |
| 212 | } |
| 213 | |
| 214 | // UI Installation/De-installation |
| 215 | |
| 216 | public void installUI(JComponent c) { |
| 217 | this.tabPane = (JTabbedPane)c; |
| 218 | |
| 219 | calculatedBaseline = false; |
| 220 | rolloverTabIndex = -1; |
| 221 | focusIndex = -1; |
| 222 | c.setLayout(createLayoutManager()); |
| 223 | installComponents(); |
| 224 | installDefaults(); |
| 225 | installListeners(); |
| 226 | installKeyboardActions(); |
| 227 | } |
| 228 | |
| 229 | public void uninstallUI(JComponent c) { |
| 230 | uninstallKeyboardActions(); |
| 231 | uninstallListeners(); |
| 232 | uninstallDefaults(); |
| 233 | uninstallComponents(); |
| 234 | c.setLayout(null); |
| 235 | |
| 236 | this.tabPane = null; |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Invoked by <code>installUI</code> to create |
| 241 | * a layout manager object to manage |
| 242 | * the <code>JTabbedPane</code>. |
| 243 | * |
| 244 | * @return a layout manager object |
| 245 | * |
| 246 | * @see TabbedPaneLayout |
| 247 | * @see javax.swing.JTabbedPane#getTabLayoutPolicy |
| 248 | */ |
| 249 | protected LayoutManager createLayoutManager() { |
| 250 | if (tabPane.getTabLayoutPolicy() == JTabbedPane.SCROLL_TAB_LAYOUT) { |
| 251 | return new TabbedPaneScrollLayout(); |
| 252 | } else { /* WRAP_TAB_LAYOUT */ |
| 253 | return new TabbedPaneLayout(); |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | /* In an attempt to preserve backward compatibility for programs |
| 258 | * which have extended BasicTabbedPaneUI to do their own layout, the |
| 259 | * UI uses the installed layoutManager (and not tabLayoutPolicy) to |
| 260 | * determine if scrollTabLayout is enabled. |
| 261 | */ |
| 262 | private boolean scrollableTabLayoutEnabled() { |
| 263 | return (tabPane.getLayout() instanceof TabbedPaneScrollLayout); |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * Creates and installs any required subcomponents for the JTabbedPane. |
| 268 | * Invoked by installUI. |
| 269 | * |
| 270 | * @since 1.4 |
| 271 | */ |
| 272 | protected void installComponents() { |
| 273 | if (scrollableTabLayoutEnabled()) { |
| 274 | if (tabScroller == null) { |
| 275 | tabScroller = new ScrollableTabSupport(tabPane.getTabPlacement()); |
| 276 | tabPane.add(tabScroller.viewport); |
| 277 | } |
| 278 | } |
| 279 | installTabContainer(); |
| 280 | } |
| 281 | |
| 282 | private void installTabContainer() { |
| 283 | for (int i = 0; i < tabPane.getTabCount(); i++) { |
| 284 | Component tabComponent = tabPane.getTabComponentAt(i); |
| 285 | if (tabComponent != null) { |
| 286 | if(tabContainer == null) { |
| 287 | tabContainer = new TabContainer(); |
| 288 | } |
| 289 | tabContainer.add(tabComponent); |
| 290 | } |
| 291 | } |
| 292 | if(tabContainer == null) { |
| 293 | return; |
| 294 | } |
| 295 | if (scrollableTabLayoutEnabled()) { |
| 296 | tabScroller.tabPanel.add(tabContainer); |
| 297 | } else { |
| 298 | tabPane.add(tabContainer); |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * Creates and returns a JButton that will provide the user |
| 304 | * with a way to scroll the tabs in a particular direction. The |
| 305 | * returned JButton must be instance of UIResource. |
| 306 | * |
| 307 | * @param direction One of the SwingConstants constants: |
| 308 | * SOUTH, NORTH, EAST or WEST |
| 309 | * @return Widget for user to |
| 310 | * @see javax.swing.JTabbedPane#setTabPlacement |
| 311 | * @see javax.swing.SwingConstants |
| 312 | * @throws IllegalArgumentException if direction is not one of |
| 313 | * NORTH, SOUTH, EAST or WEST |
| 314 | * @since 1.5 |
| 315 | */ |
| 316 | protected JButton createScrollButton(int direction) { |
| 317 | if (direction != SOUTH && direction != NORTH && direction != EAST && |
| 318 | direction != WEST) { |
| 319 | throw new IllegalArgumentException("Direction must be one of: " + |
| 320 | "SOUTH, NORTH, EAST or WEST"); |
| 321 | } |
| 322 | return new ScrollableTabButton(direction); |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * Removes any installed subcomponents from the JTabbedPane. |
| 327 | * Invoked by uninstallUI. |
| 328 | * |
| 329 | * @since 1.4 |
| 330 | */ |
| 331 | protected void uninstallComponents() { |
| 332 | uninstallTabContainer(); |
| 333 | if (scrollableTabLayoutEnabled()) { |
| 334 | tabPane.remove(tabScroller.viewport); |
| 335 | tabPane.remove(tabScroller.scrollForwardButton); |
| 336 | tabPane.remove(tabScroller.scrollBackwardButton); |
| 337 | tabScroller = null; |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | private void uninstallTabContainer() { |
| 342 | if(tabContainer == null) { |
| 343 | return; |
| 344 | } |
| 345 | // Remove all the tabComponents, making sure not to notify |
| 346 | // the tabbedpane. |
| 347 | tabContainer.notifyTabbedPane = false; |
| 348 | tabContainer.removeAll(); |
| 349 | if(scrollableTabLayoutEnabled()) { |
| 350 | tabContainer.remove(tabScroller.croppedEdge); |
| 351 | tabScroller.tabPanel.remove(tabContainer); |
| 352 | } else { |
| 353 | tabPane.remove(tabContainer); |
| 354 | } |
| 355 | tabContainer = null; |
| 356 | } |
| 357 | |
| 358 | protected void installDefaults() { |
| 359 | LookAndFeel.installColorsAndFont(tabPane, "TabbedPane.background", |
| 360 | "TabbedPane.foreground", "TabbedPane.font"); |
| 361 | highlight = UIManager.getColor("TabbedPane.light"); |
| 362 | lightHighlight = UIManager.getColor("TabbedPane.highlight"); |
| 363 | shadow = UIManager.getColor("TabbedPane.shadow"); |
| 364 | darkShadow = UIManager.getColor("TabbedPane.darkShadow"); |
| 365 | focus = UIManager.getColor("TabbedPane.focus"); |
| 366 | selectedColor = UIManager.getColor("TabbedPane.selected"); |
| 367 | |
| 368 | textIconGap = UIManager.getInt("TabbedPane.textIconGap"); |
| 369 | tabInsets = UIManager.getInsets("TabbedPane.tabInsets"); |
| 370 | selectedTabPadInsets = UIManager.getInsets("TabbedPane.selectedTabPadInsets"); |
| 371 | tabAreaInsets = UIManager.getInsets("TabbedPane.tabAreaInsets"); |
| 372 | tabsOverlapBorder = UIManager.getBoolean("TabbedPane.tabsOverlapBorder"); |
| 373 | contentBorderInsets = UIManager.getInsets("TabbedPane.contentBorderInsets"); |
| 374 | tabRunOverlay = UIManager.getInt("TabbedPane.tabRunOverlay"); |
| 375 | tabsOpaque = UIManager.getBoolean("TabbedPane.tabsOpaque"); |
| 376 | contentOpaque = UIManager.getBoolean("TabbedPane.contentOpaque"); |
| 377 | Object opaque = UIManager.get("TabbedPane.opaque"); |
| 378 | if (opaque == null) { |
| 379 | opaque = Boolean.FALSE; |
| 380 | } |
| 381 | LookAndFeel.installProperty(tabPane, "opaque", opaque); |
| 382 | } |
| 383 | |
| 384 | protected void uninstallDefaults() { |
| 385 | highlight = null; |
| 386 | lightHighlight = null; |
| 387 | shadow = null; |
| 388 | darkShadow = null; |
| 389 | focus = null; |
| 390 | tabInsets = null; |
| 391 | selectedTabPadInsets = null; |
| 392 | tabAreaInsets = null; |
| 393 | contentBorderInsets = null; |
| 394 | } |
| 395 | |
| 396 | protected void installListeners() { |
| 397 | if ((propertyChangeListener = createPropertyChangeListener()) != null) { |
| 398 | tabPane.addPropertyChangeListener(propertyChangeListener); |
| 399 | } |
| 400 | if ((tabChangeListener = createChangeListener()) != null) { |
| 401 | tabPane.addChangeListener(tabChangeListener); |
| 402 | } |
| 403 | if ((mouseListener = createMouseListener()) != null) { |
| 404 | tabPane.addMouseListener(mouseListener); |
| 405 | } |
| 406 | tabPane.addMouseMotionListener(getHandler()); |
| 407 | if ((focusListener = createFocusListener()) != null) { |
| 408 | tabPane.addFocusListener(focusListener); |
| 409 | } |
| 410 | tabPane.addContainerListener(getHandler()); |
| 411 | if (tabPane.getTabCount()>0) { |
| 412 | htmlViews = createHTMLVector(); |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | protected void uninstallListeners() { |
| 417 | if (mouseListener != null) { |
| 418 | tabPane.removeMouseListener(mouseListener); |
| 419 | mouseListener = null; |
| 420 | } |
| 421 | tabPane.removeMouseMotionListener(getHandler()); |
| 422 | if (focusListener != null) { |
| 423 | tabPane.removeFocusListener(focusListener); |
| 424 | focusListener = null; |
| 425 | } |
| 426 | |
| 427 | tabPane.removeContainerListener(getHandler()); |
| 428 | if (htmlViews!=null) { |
| 429 | htmlViews.removeAllElements(); |
| 430 | htmlViews = null; |
| 431 | } |
| 432 | if (tabChangeListener != null) { |
| 433 | tabPane.removeChangeListener(tabChangeListener); |
| 434 | tabChangeListener = null; |
| 435 | } |
| 436 | if (propertyChangeListener != null) { |
| 437 | tabPane.removePropertyChangeListener(propertyChangeListener); |
| 438 | propertyChangeListener = null; |
| 439 | } |
| 440 | handler = null; |
| 441 | } |
| 442 | |
| 443 | protected MouseListener createMouseListener() { |
| 444 | return getHandler(); |
| 445 | } |
| 446 | |
| 447 | protected FocusListener createFocusListener() { |
| 448 | return getHandler(); |
| 449 | } |
| 450 | |
| 451 | protected ChangeListener createChangeListener() { |
| 452 | return getHandler(); |
| 453 | } |
| 454 | |
| 455 | protected PropertyChangeListener createPropertyChangeListener() { |
| 456 | return getHandler(); |
| 457 | } |
| 458 | |
| 459 | private Handler getHandler() { |
| 460 | if (handler == null) { |
| 461 | handler = new Handler(); |
| 462 | } |
| 463 | return handler; |
| 464 | } |
| 465 | |
| 466 | protected void installKeyboardActions() { |
| 467 | InputMap km = getInputMap(JComponent. |
| 468 | WHEN_ANCESTOR_OF_FOCUSED_COMPONENT); |
| 469 | |
| 470 | SwingUtilities.replaceUIInputMap(tabPane, JComponent. |
| 471 | WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, |
| 472 | km); |
| 473 | km = getInputMap(JComponent.WHEN_FOCUSED); |
| 474 | SwingUtilities.replaceUIInputMap(tabPane, JComponent.WHEN_FOCUSED, km); |
| 475 | |
| 476 | LazyActionMap.installLazyActionMap(tabPane, BasicTabbedPaneUI.class, |
| 477 | "TabbedPane.actionMap"); |
| 478 | updateMnemonics(); |
| 479 | } |
| 480 | |
| 481 | InputMap getInputMap(int condition) { |
| 482 | if (condition == JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT) { |
| 483 | return (InputMap)DefaultLookup.get(tabPane, this, |
| 484 | "TabbedPane.ancestorInputMap"); |
| 485 | } |
| 486 | else if (condition == JComponent.WHEN_FOCUSED) { |
| 487 | return (InputMap)DefaultLookup.get(tabPane, this, |
| 488 | "TabbedPane.focusInputMap"); |
| 489 | } |
| 490 | return null; |
| 491 | } |
| 492 | |
| 493 | protected void uninstallKeyboardActions() { |
| 494 | SwingUtilities.replaceUIActionMap(tabPane, null); |
| 495 | SwingUtilities.replaceUIInputMap(tabPane, JComponent. |
| 496 | WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, |
| 497 | null); |
| 498 | SwingUtilities.replaceUIInputMap(tabPane, JComponent.WHEN_FOCUSED, |
| 499 | null); |
| 500 | SwingUtilities.replaceUIInputMap(tabPane, |
| 501 | JComponent.WHEN_IN_FOCUSED_WINDOW, |
| 502 | null); |
| 503 | mnemonicToIndexMap = null; |
| 504 | mnemonicInputMap = null; |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Reloads the mnemonics. This should be invoked when a memonic changes, |
| 509 | * when the title of a mnemonic changes, or when tabs are added/removed. |
| 510 | */ |
| 511 | private void updateMnemonics() { |
| 512 | resetMnemonics(); |
| 513 | for (int counter = tabPane.getTabCount() - 1; counter >= 0; |
| 514 | counter--) { |
| 515 | int mnemonic = tabPane.getMnemonicAt(counter); |
| 516 | |
| 517 | if (mnemonic > 0) { |
| 518 | addMnemonic(counter, mnemonic); |
| 519 | } |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * Resets the mnemonics bindings to an empty state. |
| 525 | */ |
| 526 | private void resetMnemonics() { |
| 527 | if (mnemonicToIndexMap != null) { |
| 528 | mnemonicToIndexMap.clear(); |
| 529 | mnemonicInputMap.clear(); |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | /** |
| 534 | * Adds the specified mnemonic at the specified index. |
| 535 | */ |
| 536 | private void addMnemonic(int index, int mnemonic) { |
| 537 | if (mnemonicToIndexMap == null) { |
| 538 | initMnemonics(); |
| 539 | } |
| 540 | mnemonicInputMap.put(KeyStroke.getKeyStroke(mnemonic, Event.ALT_MASK), |
| 541 | "setSelectedIndex"); |
| 542 | mnemonicToIndexMap.put(new Integer(mnemonic), new Integer(index)); |
| 543 | } |
| 544 | |
| 545 | /** |
| 546 | * Installs the state needed for mnemonics. |
| 547 | */ |
| 548 | private void initMnemonics() { |
| 549 | mnemonicToIndexMap = new Hashtable(); |
| 550 | mnemonicInputMap = new ComponentInputMapUIResource(tabPane); |
| 551 | mnemonicInputMap.setParent(SwingUtilities.getUIInputMap(tabPane, |
| 552 | JComponent.WHEN_IN_FOCUSED_WINDOW)); |
| 553 | SwingUtilities.replaceUIInputMap(tabPane, |
| 554 | JComponent.WHEN_IN_FOCUSED_WINDOW, |
| 555 | mnemonicInputMap); |
| 556 | } |
| 557 | |
| 558 | /** |
| 559 | * Sets the tab the mouse is over by location. This is a cover method |
| 560 | * for <code>setRolloverTab(tabForCoordinate(x, y, false))</code>. |
| 561 | */ |
| 562 | private void setRolloverTab(int x, int y) { |
| 563 | // NOTE: |
| 564 | // This calls in with false otherwise it could trigger a validate, |
| 565 | // which should NOT happen if the user is only dragging the |
| 566 | // mouse around. |
| 567 | setRolloverTab(tabForCoordinate(tabPane, x, y, false)); |
| 568 | } |
| 569 | |
| 570 | /** |
| 571 | * Sets the tab the mouse is currently over to <code>index</code>. |
| 572 | * <code>index</code> will be -1 if the mouse is no longer over any |
| 573 | * tab. No checking is done to ensure the passed in index identifies a |
| 574 | * valid tab. |
| 575 | * |
| 576 | * @param index Index of the tab the mouse is over. |
| 577 | * @since 1.5 |
| 578 | */ |
| 579 | protected void setRolloverTab(int index) { |
| 580 | rolloverTabIndex = index; |
| 581 | } |
| 582 | |
| 583 | /** |
| 584 | * Returns the tab the mouse is currently over, or {@code -1} if the mouse is no |
| 585 | * longer over any tab. |
| 586 | * |
| 587 | * @return the tab the mouse is currently over, or {@code -1} if the mouse is no |
| 588 | * longer over any tab |
| 589 | * @since 1.5 |
| 590 | */ |
| 591 | protected int getRolloverTab() { |
| 592 | return rolloverTabIndex; |
| 593 | } |
| 594 | |
| 595 | public Dimension getMinimumSize(JComponent c) { |
| 596 | // Default to LayoutManager's minimumLayoutSize |
| 597 | return null; |
| 598 | } |
| 599 | |
| 600 | public Dimension getMaximumSize(JComponent c) { |
| 601 | // Default to LayoutManager's maximumLayoutSize |
| 602 | return null; |
| 603 | } |
| 604 | |
| 605 | /** |
| 606 | * Returns the baseline. |
| 607 | * |
| 608 | * @throws NullPointerException {@inheritDoc} |
| 609 | * @throws IllegalArgumentException {@inheritDoc} |
| 610 | * @see javax.swing.JComponent#getBaseline(int, int) |
| 611 | * @since 1.6 |
| 612 | */ |
| 613 | public int getBaseline(JComponent c, int width, int height) { |
| 614 | super.getBaseline(c, width, height); |
| 615 | int baseline = calculateBaselineIfNecessary(); |
| 616 | if (baseline != -1) { |
| 617 | int placement = tabPane.getTabPlacement(); |
| 618 | Insets insets = tabPane.getInsets(); |
| 619 | Insets tabAreaInsets = getTabAreaInsets(placement); |
| 620 | switch(placement) { |
| 621 | case JTabbedPane.TOP: |
| 622 | baseline += insets.top + tabAreaInsets.top; |
| 623 | return baseline; |
| 624 | case JTabbedPane.BOTTOM: |
| 625 | baseline = height - insets.bottom - |
| 626 | tabAreaInsets.bottom - maxTabHeight + baseline; |
| 627 | return baseline; |
| 628 | case JTabbedPane.LEFT: |
| 629 | case JTabbedPane.RIGHT: |
| 630 | baseline += insets.top + tabAreaInsets.top; |
| 631 | return baseline; |
| 632 | } |
| 633 | } |
| 634 | return -1; |
| 635 | } |
| 636 | |
| 637 | /** |
| 638 | * Returns an enum indicating how the baseline of the component |
| 639 | * changes as the size changes. |
| 640 | * |
| 641 | * @throws NullPointerException {@inheritDoc} |
| 642 | * @see javax.swing.JComponent#getBaseline(int, int) |
| 643 | * @since 1.6 |
| 644 | */ |
| 645 | public Component.BaselineResizeBehavior getBaselineResizeBehavior( |
| 646 | JComponent c) { |
| 647 | super.getBaselineResizeBehavior(c); |
| 648 | switch(tabPane.getTabPlacement()) { |
| 649 | case JTabbedPane.LEFT: |
| 650 | case JTabbedPane.RIGHT: |
| 651 | case JTabbedPane.TOP: |
| 652 | return Component.BaselineResizeBehavior.CONSTANT_ASCENT; |
| 653 | case JTabbedPane.BOTTOM: |
| 654 | return Component.BaselineResizeBehavior.CONSTANT_DESCENT; |
| 655 | } |
| 656 | return Component.BaselineResizeBehavior.OTHER; |
| 657 | } |
| 658 | |
| 659 | /** |
| 660 | * Returns the baseline for the specified tab. |
| 661 | * |
| 662 | * @param tab index of tab to get baseline for |
| 663 | * @exception IndexOutOfBoundsException if index is out of range |
| 664 | * (index < 0 || index >= tab count) |
| 665 | * @return baseline or a value < 0 indicating there is no reasonable |
| 666 | * baseline |
| 667 | * @since 1.6 |
| 668 | */ |
| 669 | protected int getBaseline(int tab) { |
| 670 | if (tabPane.getTabComponentAt(tab) != null) { |
| 671 | int offset = getBaselineOffset(); |
| 672 | if (offset != 0) { |
| 673 | // The offset is not applied to the tab component, and so |
| 674 | // in general we can't get good alignment like with components |
| 675 | // in the tab. |
| 676 | return -1; |
| 677 | } |
| 678 | Component c = tabPane.getTabComponentAt(tab); |
| 679 | Dimension pref = c.getPreferredSize(); |
| 680 | Insets tabInsets = getTabInsets(tabPane.getTabPlacement(), tab); |
| 681 | int cellHeight = maxTabHeight - tabInsets.top - tabInsets.bottom; |
| 682 | return c.getBaseline(pref.width, pref.height) + |
| 683 | (cellHeight - pref.height) / 2 + tabInsets.top; |
| 684 | } |
| 685 | else { |
| 686 | View view = getTextViewForTab(tab); |
| 687 | if (view != null) { |
| 688 | int viewHeight = (int)view.getPreferredSpan(View.Y_AXIS); |
| 689 | int baseline = BasicHTML.getHTMLBaseline( |
| 690 | view, (int)view.getPreferredSpan(View.X_AXIS), viewHeight); |
| 691 | if (baseline >= 0) { |
| 692 | return maxTabHeight / 2 - viewHeight / 2 + baseline + |
| 693 | getBaselineOffset(); |
| 694 | } |
| 695 | return -1; |
| 696 | } |
| 697 | } |
| 698 | FontMetrics metrics = getFontMetrics(); |
| 699 | int fontHeight = metrics.getHeight(); |
| 700 | int fontBaseline = metrics.getAscent(); |
| 701 | return maxTabHeight / 2 - fontHeight / 2 + fontBaseline + |
| 702 | getBaselineOffset(); |
| 703 | } |
| 704 | |
| 705 | /** |
| 706 | * Returns the amount the baseline is offset by. This is typically |
| 707 | * the same as <code>getTabLabelShiftY</code>. |
| 708 | * |
| 709 | * @return amount to offset the baseline by |
| 710 | * @since 1.6 |
| 711 | */ |
| 712 | protected int getBaselineOffset() { |
| 713 | switch(tabPane.getTabPlacement()) { |
| 714 | case JTabbedPane.TOP: |
| 715 | if (tabPane.getTabCount() > 1) { |
| 716 | return 1; |
| 717 | } |
| 718 | else { |
| 719 | return -1; |
| 720 | } |
| 721 | case JTabbedPane.BOTTOM: |
| 722 | if (tabPane.getTabCount() > 1) { |
| 723 | return -1; |
| 724 | } |
| 725 | else { |
| 726 | return 1; |
| 727 | } |
| 728 | default: // RIGHT|LEFT |
| 729 | return (maxTabHeight % 2); |
| 730 | } |
| 731 | } |
| 732 | |
| 733 | private int calculateBaselineIfNecessary() { |
| 734 | if (!calculatedBaseline) { |
| 735 | calculatedBaseline = true; |
| 736 | baseline = -1; |
| 737 | if (tabPane.getTabCount() > 0) { |
| 738 | calculateBaseline(); |
| 739 | } |
| 740 | } |
| 741 | return baseline; |
| 742 | } |
| 743 | |
| 744 | private void calculateBaseline() { |
| 745 | int tabCount = tabPane.getTabCount(); |
| 746 | int tabPlacement = tabPane.getTabPlacement(); |
| 747 | maxTabHeight = calculateMaxTabHeight(tabPlacement); |
| 748 | baseline = getBaseline(0); |
| 749 | if (isHorizontalTabPlacement()) { |
| 750 | for(int i = 1; i < tabCount; i++) { |
| 751 | if (getBaseline(i) != baseline) { |
| 752 | baseline = -1; |
| 753 | break; |
| 754 | } |
| 755 | } |
| 756 | } |
| 757 | else { |
| 758 | // left/right, tabs may be different sizes. |
| 759 | FontMetrics fontMetrics = getFontMetrics(); |
| 760 | int fontHeight = fontMetrics.getHeight(); |
| 761 | int height = calculateTabHeight(tabPlacement, 0, fontHeight); |
| 762 | for(int i = 1; i < tabCount; i++) { |
| 763 | int newHeight = calculateTabHeight(tabPlacement, i,fontHeight); |
| 764 | if (height != newHeight) { |
| 765 | // assume different baseline |
| 766 | baseline = -1; |
| 767 | break; |
| 768 | } |
| 769 | } |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | // UI Rendering |
| 774 | |
| 775 | public void paint(Graphics g, JComponent c) { |
| 776 | int selectedIndex = tabPane.getSelectedIndex(); |
| 777 | int tabPlacement = tabPane.getTabPlacement(); |
| 778 | |
| 779 | ensureCurrentLayout(); |
| 780 | |
| 781 | // Paint content border and tab area |
| 782 | if (tabsOverlapBorder) { |
| 783 | paintContentBorder(g, tabPlacement, selectedIndex); |
| 784 | } |
| 785 | // If scrollable tabs are enabled, the tab area will be |
| 786 | // painted by the scrollable tab panel instead. |
| 787 | // |
| 788 | if (!scrollableTabLayoutEnabled()) { // WRAP_TAB_LAYOUT |
| 789 | paintTabArea(g, tabPlacement, selectedIndex); |
| 790 | } |
| 791 | if (!tabsOverlapBorder) { |
| 792 | paintContentBorder(g, tabPlacement, selectedIndex); |
| 793 | } |
| 794 | } |
| 795 | |
| 796 | /** |
| 797 | * Paints the tabs in the tab area. |
| 798 | * Invoked by paint(). |
| 799 | * The graphics parameter must be a valid <code>Graphics</code> |
| 800 | * object. Tab placement may be either: |
| 801 | * <code>JTabbedPane.TOP</code>, <code>JTabbedPane.BOTTOM</code>, |
| 802 | * <code>JTabbedPane.LEFT</code>, or <code>JTabbedPane.RIGHT</code>. |
| 803 | * The selected index must be a valid tabbed pane tab index (0 to |
| 804 | * tab count - 1, inclusive) or -1 if no tab is currently selected. |
| 805 | * The handling of invalid parameters is unspecified. |
| 806 | * |
| 807 | * @param g the graphics object to use for rendering |
| 808 | * @param tabPlacement the placement for the tabs within the JTabbedPane |
| 809 | * @param selectedIndex the tab index of the selected component |
| 810 | * |
| 811 | * @since 1.4 |
| 812 | */ |
| 813 | protected void paintTabArea(Graphics g, int tabPlacement, int selectedIndex) { |
| 814 | int tabCount = tabPane.getTabCount(); |
| 815 | |
| 816 | Rectangle iconRect = new Rectangle(), |
| 817 | textRect = new Rectangle(); |
| 818 | Rectangle clipRect = g.getClipBounds(); |
| 819 | |
| 820 | // Paint tabRuns of tabs from back to front |
| 821 | for (int i = runCount - 1; i >= 0; i--) { |
| 822 | int start = tabRuns[i]; |
| 823 | int next = tabRuns[(i == runCount - 1)? 0 : i + 1]; |
| 824 | int end = (next != 0? next - 1: tabCount - 1); |
| 825 | for (int j = start; j <= end; j++) { |
| 826 | if (j != selectedIndex && rects[j].intersects(clipRect)) { |
| 827 | paintTab(g, tabPlacement, rects, j, iconRect, textRect); |
| 828 | } |
| 829 | } |
| 830 | } |
| 831 | |
| 832 | // Paint selected tab if its in the front run |
| 833 | // since it may overlap other tabs |
| 834 | if (selectedIndex >= 0 && rects[selectedIndex].intersects(clipRect)) { |
| 835 | paintTab(g, tabPlacement, rects, selectedIndex, iconRect, textRect); |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | protected void paintTab(Graphics g, int tabPlacement, |
| 840 | Rectangle[] rects, int tabIndex, |
| 841 | Rectangle iconRect, Rectangle textRect) { |
| 842 | Rectangle tabRect = rects[tabIndex]; |
| 843 | int selectedIndex = tabPane.getSelectedIndex(); |
| 844 | boolean isSelected = selectedIndex == tabIndex; |
| 845 | |
| 846 | if (tabsOpaque || tabPane.isOpaque()) { |
| 847 | paintTabBackground(g, tabPlacement, tabIndex, tabRect.x, tabRect.y, |
| 848 | tabRect.width, tabRect.height, isSelected); |
| 849 | } |
| 850 | |
| 851 | paintTabBorder(g, tabPlacement, tabIndex, tabRect.x, tabRect.y, |
| 852 | tabRect.width, tabRect.height, isSelected); |
| 853 | |
| 854 | String title = tabPane.getTitleAt(tabIndex); |
| 855 | Font font = tabPane.getFont(); |
| 856 | FontMetrics metrics = SwingUtilities2.getFontMetrics(tabPane, g, font); |
| 857 | Icon icon = getIconForTab(tabIndex); |
| 858 | |
| 859 | layoutLabel(tabPlacement, metrics, tabIndex, title, icon, |
| 860 | tabRect, iconRect, textRect, isSelected); |
| 861 | |
| 862 | if (tabPane.getTabComponentAt(tabIndex) == null) { |
| 863 | String clippedTitle = title; |
| 864 | |
| 865 | if (scrollableTabLayoutEnabled() && tabScroller.croppedEdge.isParamsSet() && |
| 866 | tabScroller.croppedEdge.getTabIndex() == tabIndex && isHorizontalTabPlacement()) { |
| 867 | int availTextWidth = tabScroller.croppedEdge.getCropline() - |
| 868 | (textRect.x - tabRect.x) - tabScroller.croppedEdge.getCroppedSideWidth(); |
| 869 | clippedTitle = SwingUtilities2.clipStringIfNecessary(null, metrics, title, availTextWidth); |
| 870 | } |
| 871 | |
| 872 | paintText(g, tabPlacement, font, metrics, |
| 873 | tabIndex, clippedTitle, textRect, isSelected); |
| 874 | |
| 875 | paintIcon(g, tabPlacement, tabIndex, icon, iconRect, isSelected); |
| 876 | } |
| 877 | paintFocusIndicator(g, tabPlacement, rects, tabIndex, |
| 878 | iconRect, textRect, isSelected); |
| 879 | } |
| 880 | |
| 881 | private boolean isHorizontalTabPlacement() { |
| 882 | return tabPane.getTabPlacement() == TOP || tabPane.getTabPlacement() == BOTTOM; |
| 883 | } |
| 884 | |
| 885 | /* This method will create and return a polygon shape for the given tab rectangle |
| 886 | * which has been cropped at the specified cropline with a torn edge visual. |
| 887 | * e.g. A "File" tab which has cropped been cropped just after the "i": |
| 888 | * ------------- |
| 889 | * | ..... | |
| 890 | * | . | |
| 891 | * | ... . | |
| 892 | * | . . | |
| 893 | * | . . | |
| 894 | * | . . | |
| 895 | * -------------- |
| 896 | * |
| 897 | * The x, y arrays below define the pattern used to create a "torn" edge |
| 898 | * segment which is repeated to fill the edge of the tab. |
| 899 | * For tabs placed on TOP and BOTTOM, this righthand torn edge is created by |
| 900 | * line segments which are defined by coordinates obtained by |
| 901 | * subtracting xCropLen[i] from (tab.x + tab.width) and adding yCroplen[i] |
| 902 | * to (tab.y). |
| 903 | * For tabs placed on LEFT or RIGHT, the bottom torn edge is created by |
| 904 | * subtracting xCropLen[i] from (tab.y + tab.height) and adding yCropLen[i] |
| 905 | * to (tab.x). |
| 906 | */ |
| 907 | private static int xCropLen[] = {1,1,0,0,1,1,2,2}; |
| 908 | private static int yCropLen[] = {0,3,3,6,6,9,9,12}; |
| 909 | private static final int CROP_SEGMENT = 12; |
| 910 | |
| 911 | private static Polygon createCroppedTabShape(int tabPlacement, Rectangle tabRect, int cropline) { |
| 912 | int rlen = 0; |
| 913 | int start = 0; |
| 914 | int end = 0; |
| 915 | int ostart = 0; |
| 916 | |
| 917 | switch(tabPlacement) { |
| 918 | case LEFT: |
| 919 | case RIGHT: |
| 920 | rlen = tabRect.width; |
| 921 | start = tabRect.x; |
| 922 | end = tabRect.x + tabRect.width; |
| 923 | ostart = tabRect.y + tabRect.height; |
| 924 | break; |
| 925 | case TOP: |
| 926 | case BOTTOM: |
| 927 | default: |
| 928 | rlen = tabRect.height; |
| 929 | start = tabRect.y; |
| 930 | end = tabRect.y + tabRect.height; |
| 931 | ostart = tabRect.x + tabRect.width; |
| 932 | } |
| 933 | int rcnt = rlen/CROP_SEGMENT; |
| 934 | if (rlen%CROP_SEGMENT > 0) { |
| 935 | rcnt++; |
| 936 | } |
| 937 | int npts = 2 + (rcnt*8); |
| 938 | int xp[] = new int[npts]; |
| 939 | int yp[] = new int[npts]; |
| 940 | int pcnt = 0; |
| 941 | |
| 942 | xp[pcnt] = ostart; |
| 943 | yp[pcnt++] = end; |
| 944 | xp[pcnt] = ostart; |
| 945 | yp[pcnt++] = start; |
| 946 | for(int i = 0; i < rcnt; i++) { |
| 947 | for(int j = 0; j < xCropLen.length; j++) { |
| 948 | xp[pcnt] = cropline - xCropLen[j]; |
| 949 | yp[pcnt] = start + (i*CROP_SEGMENT) + yCropLen[j]; |
| 950 | if (yp[pcnt] >= end) { |
| 951 | yp[pcnt] = end; |
| 952 | pcnt++; |
| 953 | break; |
| 954 | } |
| 955 | pcnt++; |
| 956 | } |
| 957 | } |
| 958 | if (tabPlacement == JTabbedPane.TOP || tabPlacement == JTabbedPane.BOTTOM) { |
| 959 | return new Polygon(xp, yp, pcnt); |
| 960 | |
| 961 | } else { // LEFT or RIGHT |
| 962 | return new Polygon(yp, xp, pcnt); |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | /* If tabLayoutPolicy == SCROLL_TAB_LAYOUT, this method will paint an edge |
| 967 | * indicating the tab is cropped in the viewport display |
| 968 | */ |
| 969 | private void paintCroppedTabEdge(Graphics g) { |
| 970 | int tabIndex = tabScroller.croppedEdge.getTabIndex(); |
| 971 | int cropline = tabScroller.croppedEdge.getCropline(); |
| 972 | int x,y; |
| 973 | switch(tabPane.getTabPlacement()) { |
| 974 | case LEFT: |
| 975 | case RIGHT: |
| 976 | x = rects[tabIndex].x; |
| 977 | y = cropline; |
| 978 | int xx = x; |
| 979 | g.setColor(shadow); |
| 980 | while(xx <= x+rects[tabIndex].width) { |
| 981 | for (int i=0; i < xCropLen.length; i+=2) { |
| 982 | g.drawLine(xx+yCropLen[i],y-xCropLen[i], |
| 983 | xx+yCropLen[i+1]-1,y-xCropLen[i+1]); |
| 984 | } |
| 985 | xx+=CROP_SEGMENT; |
| 986 | } |
| 987 | break; |
| 988 | case TOP: |
| 989 | case BOTTOM: |
| 990 | default: |
| 991 | x = cropline; |
| 992 | y = rects[tabIndex].y; |
| 993 | int yy = y; |
| 994 | g.setColor(shadow); |
| 995 | while(yy <= y+rects[tabIndex].height) { |
| 996 | for (int i=0; i < xCropLen.length; i+=2) { |
| 997 | g.drawLine(x-xCropLen[i],yy+yCropLen[i], |
| 998 | x-xCropLen[i+1],yy+yCropLen[i+1]-1); |
| 999 | } |
| 1000 | yy+=CROP_SEGMENT; |
| 1001 | } |
| 1002 | } |
| 1003 | } |
| 1004 | |
| 1005 | protected void layoutLabel(int tabPlacement, |
| 1006 | FontMetrics metrics, int tabIndex, |
| 1007 | String title, Icon icon, |
| 1008 | Rectangle tabRect, Rectangle iconRect, |
| 1009 | Rectangle textRect, boolean isSelected ) { |
| 1010 | textRect.x = textRect.y = iconRect.x = iconRect.y = 0; |
| 1011 | |
| 1012 | View v = getTextViewForTab(tabIndex); |
| 1013 | if (v != null) { |
| 1014 | tabPane.putClientProperty("html", v); |
| 1015 | } |
| 1016 | |
| 1017 | SwingUtilities.layoutCompoundLabel((JComponent) tabPane, |
| 1018 | metrics, title, icon, |
| 1019 | SwingUtilities.CENTER, |
| 1020 | SwingUtilities.CENTER, |
| 1021 | SwingUtilities.CENTER, |
| 1022 | SwingUtilities.TRAILING, |
| 1023 | tabRect, |
| 1024 | iconRect, |
| 1025 | textRect, |
| 1026 | textIconGap); |
| 1027 | |
| 1028 | tabPane.putClientProperty("html", null); |
| 1029 | |
| 1030 | int xNudge = getTabLabelShiftX(tabPlacement, tabIndex, isSelected); |
| 1031 | int yNudge = getTabLabelShiftY(tabPlacement, tabIndex, isSelected); |
| 1032 | iconRect.x += xNudge; |
| 1033 | iconRect.y += yNudge; |
| 1034 | textRect.x += xNudge; |
| 1035 | textRect.y += yNudge; |
| 1036 | } |
| 1037 | |
| 1038 | protected void paintIcon(Graphics g, int tabPlacement, |
| 1039 | int tabIndex, Icon icon, Rectangle iconRect, |
| 1040 | boolean isSelected ) { |
| 1041 | if (icon != null) { |
| 1042 | icon.paintIcon(tabPane, g, iconRect.x, iconRect.y); |
| 1043 | } |
| 1044 | } |
| 1045 | |
| 1046 | protected void paintText(Graphics g, int tabPlacement, |
| 1047 | Font font, FontMetrics metrics, int tabIndex, |
| 1048 | String title, Rectangle textRect, |
| 1049 | boolean isSelected) { |
| 1050 | |
| 1051 | g.setFont(font); |
| 1052 | |
| 1053 | View v = getTextViewForTab(tabIndex); |
| 1054 | if (v != null) { |
| 1055 | // html |
| 1056 | v.paint(g, textRect); |
| 1057 | } else { |
| 1058 | // plain text |
| 1059 | int mnemIndex = tabPane.getDisplayedMnemonicIndexAt(tabIndex); |
| 1060 | |
| 1061 | if (tabPane.isEnabled() && tabPane.isEnabledAt(tabIndex)) { |
| 1062 | Color fg = tabPane.getForegroundAt(tabIndex); |
| 1063 | if (isSelected && (fg instanceof UIResource)) { |
| 1064 | Color selectedFG = UIManager.getColor( |
| 1065 | "TabbedPane.selectedForeground"); |
| 1066 | if (selectedFG != null) { |
| 1067 | fg = selectedFG; |
| 1068 | } |
| 1069 | } |
| 1070 | g.setColor(fg); |
| 1071 | SwingUtilities2.drawStringUnderlineCharAt(tabPane, g, |
| 1072 | title, mnemIndex, |
| 1073 | textRect.x, textRect.y + metrics.getAscent()); |
| 1074 | |
| 1075 | } else { // tab disabled |
| 1076 | g.setColor(tabPane.getBackgroundAt(tabIndex).brighter()); |
| 1077 | SwingUtilities2.drawStringUnderlineCharAt(tabPane, g, |
| 1078 | title, mnemIndex, |
| 1079 | textRect.x, textRect.y + metrics.getAscent()); |
| 1080 | g.setColor(tabPane.getBackgroundAt(tabIndex).darker()); |
| 1081 | SwingUtilities2.drawStringUnderlineCharAt(tabPane, g, |
| 1082 | title, mnemIndex, |
| 1083 | textRect.x - 1, textRect.y + metrics.getAscent() - 1); |
| 1084 | |
| 1085 | } |
| 1086 | } |
| 1087 | } |
| 1088 | |
| 1089 | |
| 1090 | protected int getTabLabelShiftX(int tabPlacement, int tabIndex, boolean isSelected) { |
| 1091 | Rectangle tabRect = rects[tabIndex]; |
| 1092 | String propKey = (isSelected ? "selectedLabelShift" : "labelShift"); |
| 1093 | int nudge = DefaultLookup.getInt( |
| 1094 | tabPane, this, "TabbedPane." + propKey, 1); |
| 1095 | |
| 1096 | switch (tabPlacement) { |
| 1097 | case LEFT: |
| 1098 | return nudge; |
| 1099 | case RIGHT: |
| 1100 | return -nudge; |
| 1101 | case BOTTOM: |
| 1102 | case TOP: |
| 1103 | default: |
| 1104 | return tabRect.width % 2; |
| 1105 | } |
| 1106 | } |
| 1107 | |
| 1108 | protected int getTabLabelShiftY(int tabPlacement, int tabIndex, boolean isSelected) { |
| 1109 | Rectangle tabRect = rects[tabIndex]; |
| 1110 | String propKey = (isSelected ? "selectedLabelShift" : "labelShift"); |
| 1111 | int nudge = DefaultLookup.getInt( |
| 1112 | tabPane, this, "TabbedPane." + propKey, 1); |
| 1113 | |
| 1114 | switch (tabPlacement) { |
| 1115 | case BOTTOM: |
| 1116 | return -nudge; |
| 1117 | case LEFT: |
| 1118 | case RIGHT: |
| 1119 | return tabRect.height % 2; |
| 1120 | case TOP: |
| 1121 | default: |
| 1122 | return nudge; |
| 1123 | } |
| 1124 | } |
| 1125 | |
| 1126 | protected void paintFocusIndicator(Graphics g, int tabPlacement, |
| 1127 | Rectangle[] rects, int tabIndex, |
| 1128 | Rectangle iconRect, Rectangle textRect, |
| 1129 | boolean isSelected) { |
| 1130 | Rectangle tabRect = rects[tabIndex]; |
| 1131 | if (tabPane.hasFocus() && isSelected) { |
| 1132 | int x, y, w, h; |
| 1133 | g.setColor(focus); |
| 1134 | switch(tabPlacement) { |
| 1135 | case LEFT: |
| 1136 | x = tabRect.x + 3; |
| 1137 | y = tabRect.y + 3; |
| 1138 | w = tabRect.width - 5; |
| 1139 | h = tabRect.height - 6; |
| 1140 | break; |
| 1141 | case RIGHT: |
| 1142 | x = tabRect.x + 2; |
| 1143 | y = tabRect.y + 3; |
| 1144 | w = tabRect.width - 5; |
| 1145 | h = tabRect.height - 6; |
| 1146 | break; |
| 1147 | case BOTTOM: |
| 1148 | x = tabRect.x + 3; |
| 1149 | y = tabRect.y + 2; |
| 1150 | w = tabRect.width - 6; |
| 1151 | h = tabRect.height - 5; |
| 1152 | break; |
| 1153 | case TOP: |
| 1154 | default: |
| 1155 | x = tabRect.x + 3; |
| 1156 | y = tabRect.y + 3; |
| 1157 | w = tabRect.width - 6; |
| 1158 | h = tabRect.height - 5; |
| 1159 | } |
| 1160 | BasicGraphicsUtils.drawDashedRect(g, x, y, w, h); |
| 1161 | } |
| 1162 | } |
| 1163 | |
| 1164 | /** |
| 1165 | * this function draws the border around each tab |
| 1166 | * note that this function does now draw the background of the tab. |
| 1167 | * that is done elsewhere |
| 1168 | */ |
| 1169 | protected void paintTabBorder(Graphics g, int tabPlacement, |
| 1170 | int tabIndex, |
| 1171 | int x, int y, int w, int h, |
| 1172 | boolean isSelected ) { |
| 1173 | g.setColor(lightHighlight); |
| 1174 | |
| 1175 | switch (tabPlacement) { |
| 1176 | case LEFT: |
| 1177 | g.drawLine(x+1, y+h-2, x+1, y+h-2); // bottom-left highlight |
| 1178 | g.drawLine(x, y+2, x, y+h-3); // left highlight |
| 1179 | g.drawLine(x+1, y+1, x+1, y+1); // top-left highlight |
| 1180 | g.drawLine(x+2, y, x+w-1, y); // top highlight |
| 1181 | |
| 1182 | g.setColor(shadow); |
| 1183 | g.drawLine(x+2, y+h-2, x+w-1, y+h-2); // bottom shadow |
| 1184 | |
| 1185 | g.setColor(darkShadow); |
| 1186 | g.drawLine(x+2, y+h-1, x+w-1, y+h-1); // bottom dark shadow |
| 1187 | break; |
| 1188 | case RIGHT: |
| 1189 | g.drawLine(x, y, x+w-3, y); // top highlight |
| 1190 | |
| 1191 | g.setColor(shadow); |
| 1192 | g.drawLine(x, y+h-2, x+w-3, y+h-2); // bottom shadow |
| 1193 | g.drawLine(x+w-2, y+2, x+w-2, y+h-3); // right shadow |
| 1194 | |
| 1195 | g.setColor(darkShadow); |
| 1196 | g.drawLine(x+w-2, y+1, x+w-2, y+1); // top-right dark shadow |
| 1197 | g.drawLine(x+w-2, y+h-2, x+w-2, y+h-2); // bottom-right dark shadow |
| 1198 | g.drawLine(x+w-1, y+2, x+w-1, y+h-3); // right dark shadow |
| 1199 | g.drawLine(x, y+h-1, x+w-3, y+h-1); // bottom dark shadow |
| 1200 | break; |
| 1201 | case BOTTOM: |
| 1202 | g.drawLine(x, y, x, y+h-3); // left highlight |
| 1203 | g.drawLine(x+1, y+h-2, x+1, y+h-2); // bottom-left highlight |
| 1204 | |
| 1205 | g.setColor(shadow); |
| 1206 | g.drawLine(x+2, y+h-2, x+w-3, y+h-2); // bottom shadow |
| 1207 | g.drawLine(x+w-2, y, x+w-2, y+h-3); // right shadow |
| 1208 | |
| 1209 | g.setColor(darkShadow); |
| 1210 | g.drawLine(x+2, y+h-1, x+w-3, y+h-1); // bottom dark shadow |
| 1211 | g.drawLine(x+w-2, y+h-2, x+w-2, y+h-2); // bottom-right dark shadow |
| 1212 | g.drawLine(x+w-1, y, x+w-1, y+h-3); // right dark shadow |
| 1213 | break; |
| 1214 | case TOP: |
| 1215 | default: |
| 1216 | g.drawLine(x, y+2, x, y+h-1); // left highlight |
| 1217 | g.drawLine(x+1, y+1, x+1, y+1); // top-left highlight |
| 1218 | g.drawLine(x+2, y, x+w-3, y); // top highlight |
| 1219 | |
| 1220 | g.setColor(shadow); |
| 1221 | g.drawLine(x+w-2, y+2, x+w-2, y+h-1); // right shadow |
| 1222 | |
| 1223 | g.setColor(darkShadow); |
| 1224 | g.drawLine(x+w-1, y+2, x+w-1, y+h-1); // right dark-shadow |
| 1225 | g.drawLine(x+w-2, y+1, x+w-2, y+1); // top-right shadow |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | protected void paintTabBackground(Graphics g, int tabPlacement, |
| 1230 | int tabIndex, |
| 1231 | int x, int y, int w, int h, |
| 1232 | boolean isSelected ) { |
| 1233 | g.setColor(!isSelected || selectedColor == null? |
| 1234 | tabPane.getBackgroundAt(tabIndex) : selectedColor); |
| 1235 | switch(tabPlacement) { |
| 1236 | case LEFT: |
| 1237 | g.fillRect(x+1, y+1, w-1, h-3); |
| 1238 | break; |
| 1239 | case RIGHT: |
| 1240 | g.fillRect(x, y+1, w-2, h-3); |
| 1241 | break; |
| 1242 | case BOTTOM: |
| 1243 | g.fillRect(x+1, y, w-3, h-1); |
| 1244 | break; |
| 1245 | case TOP: |
| 1246 | default: |
| 1247 | g.fillRect(x+1, y+1, w-3, h-1); |
| 1248 | } |
| 1249 | } |
| 1250 | |
| 1251 | protected void paintContentBorder(Graphics g, int tabPlacement, int selectedIndex) { |
| 1252 | int width = tabPane.getWidth(); |
| 1253 | int height = tabPane.getHeight(); |
| 1254 | Insets insets = tabPane.getInsets(); |
| 1255 | Insets tabAreaInsets = getTabAreaInsets(tabPlacement); |
| 1256 | |
| 1257 | int x = insets.left; |
| 1258 | int y = insets.top; |
| 1259 | int w = width - insets.right - insets.left; |
| 1260 | int h = height - insets.top - insets.bottom; |
| 1261 | |
| 1262 | switch(tabPlacement) { |
| 1263 | case LEFT: |
| 1264 | x += calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); |
| 1265 | if (tabsOverlapBorder) { |
| 1266 | x -= tabAreaInsets.right; |
| 1267 | } |
| 1268 | w -= (x - insets.left); |
| 1269 | break; |
| 1270 | case RIGHT: |
| 1271 | w -= calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); |
| 1272 | if (tabsOverlapBorder) { |
| 1273 | w += tabAreaInsets.left; |
| 1274 | } |
| 1275 | break; |
| 1276 | case BOTTOM: |
| 1277 | h -= calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); |
| 1278 | if (tabsOverlapBorder) { |
| 1279 | h += tabAreaInsets.top; |
| 1280 | } |
| 1281 | break; |
| 1282 | case TOP: |
| 1283 | default: |
| 1284 | y += calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); |
| 1285 | if (tabsOverlapBorder) { |
| 1286 | y -= tabAreaInsets.bottom; |
| 1287 | } |
| 1288 | h -= (y - insets.top); |
| 1289 | } |
| 1290 | |
| 1291 | if ( tabPane.getTabCount() > 0 && (contentOpaque || tabPane.isOpaque()) ) { |
| 1292 | // Fill region behind content area |
| 1293 | Color color = UIManager.getColor("TabbedPane.contentAreaColor"); |
| 1294 | if (color != null) { |
| 1295 | g.setColor(color); |
| 1296 | } |
| 1297 | else if ( selectedColor == null || selectedIndex == -1 ) { |
| 1298 | g.setColor(tabPane.getBackground()); |
| 1299 | } |
| 1300 | else { |
| 1301 | g.setColor(selectedColor); |
| 1302 | } |
| 1303 | g.fillRect(x,y,w,h); |
| 1304 | } |
| 1305 | |
| 1306 | paintContentBorderTopEdge(g, tabPlacement, selectedIndex, x, y, w, h); |
| 1307 | paintContentBorderLeftEdge(g, tabPlacement, selectedIndex, x, y, w, h); |
| 1308 | paintContentBorderBottomEdge(g, tabPlacement, selectedIndex, x, y, w, h); |
| 1309 | paintContentBorderRightEdge(g, tabPlacement, selectedIndex, x, y, w, h); |
| 1310 | |
| 1311 | } |
| 1312 | |
| 1313 | protected void paintContentBorderTopEdge(Graphics g, int tabPlacement, |
| 1314 | int selectedIndex, |
| 1315 | int x, int y, int w, int h) { |
| 1316 | Rectangle selRect = selectedIndex < 0? null : |
| 1317 | getTabBounds(selectedIndex, calcRect); |
| 1318 | |
| 1319 | g.setColor(lightHighlight); |
| 1320 | |
| 1321 | // Draw unbroken line if tabs are not on TOP, OR |
| 1322 | // selected tab is not in run adjacent to content, OR |
| 1323 | // selected tab is not visible (SCROLL_TAB_LAYOUT) |
| 1324 | // |
| 1325 | if (tabPlacement != TOP || selectedIndex < 0 || |
| 1326 | (selRect.y + selRect.height + 1 < y) || |
| 1327 | (selRect.x < x || selRect.x > x + w)) { |
| 1328 | g.drawLine(x, y, x+w-2, y); |
| 1329 | } else { |
| 1330 | // Break line to show visual connection to selected tab |
| 1331 | g.drawLine(x, y, selRect.x - 1, y); |
| 1332 | if (selRect.x + selRect.width < x + w - 2) { |
| 1333 | g.drawLine(selRect.x + selRect.width, y, |
| 1334 | x+w-2, y); |
| 1335 | } else { |
| 1336 | g.setColor(shadow); |
| 1337 | g.drawLine(x+w-2, y, x+w-2, y); |
| 1338 | } |
| 1339 | } |
| 1340 | } |
| 1341 | |
| 1342 | protected void paintContentBorderLeftEdge(Graphics g, int tabPlacement, |
| 1343 | int selectedIndex, |
| 1344 | int x, int y, int w, int h) { |
| 1345 | Rectangle selRect = selectedIndex < 0? null : |
| 1346 | getTabBounds(selectedIndex, calcRect); |
| 1347 | |
| 1348 | g.setColor(lightHighlight); |
| 1349 | |
| 1350 | // Draw unbroken line if tabs are not on LEFT, OR |
| 1351 | // selected tab is not in run adjacent to content, OR |
| 1352 | // selected tab is not visible (SCROLL_TAB_LAYOUT) |
| 1353 | // |
| 1354 | if (tabPlacement != LEFT || selectedIndex < 0 || |
| 1355 | (selRect.x + selRect.width + 1 < x) || |
| 1356 | (selRect.y < y || selRect.y > y + h)) { |
| 1357 | g.drawLine(x, y, x, y+h-2); |
| 1358 | } else { |
| 1359 | // Break line to show visual connection to selected tab |
| 1360 | g.drawLine(x, y, x, selRect.y - 1); |
| 1361 | if (selRect.y + selRect.height < y + h - 2) { |
| 1362 | g.drawLine(x, selRect.y + selRect.height, |
| 1363 | x, y+h-2); |
| 1364 | } |
| 1365 | } |
| 1366 | } |
| 1367 | |
| 1368 | protected void paintContentBorderBottomEdge(Graphics g, int tabPlacement, |
| 1369 | int selectedIndex, |
| 1370 | int x, int y, int w, int h) { |
| 1371 | Rectangle selRect = selectedIndex < 0? null : |
| 1372 | getTabBounds(selectedIndex, calcRect); |
| 1373 | |
| 1374 | g.setColor(shadow); |
| 1375 | |
| 1376 | // Draw unbroken line if tabs are not on BOTTOM, OR |
| 1377 | // selected tab is not in run adjacent to content, OR |
| 1378 | // selected tab is not visible (SCROLL_TAB_LAYOUT) |
| 1379 | // |
| 1380 | if (tabPlacement != BOTTOM || selectedIndex < 0 || |
| 1381 | (selRect.y - 1 > h) || |
| 1382 | (selRect.x < x || selRect.x > x + w)) { |
| 1383 | g.drawLine(x+1, y+h-2, x+w-2, y+h-2); |
| 1384 | g.setColor(darkShadow); |
| 1385 | g.drawLine(x, y+h-1, x+w-1, y+h-1); |
| 1386 | } else { |
| 1387 | // Break line to show visual connection to selected tab |
| 1388 | g.drawLine(x+1, y+h-2, selRect.x - 1, y+h-2); |
| 1389 | g.setColor(darkShadow); |
| 1390 | g.drawLine(x, y+h-1, selRect.x - 1, y+h-1); |
| 1391 | if (selRect.x + selRect.width < x + w - 2) { |
| 1392 | g.setColor(shadow); |
| 1393 | g.drawLine(selRect.x + selRect.width, y+h-2, x+w-2, y+h-2); |
| 1394 | g.setColor(darkShadow); |
| 1395 | g.drawLine(selRect.x + selRect.width, y+h-1, x+w-1, y+h-1); |
| 1396 | } |
| 1397 | } |
| 1398 | |
| 1399 | } |
| 1400 | |
| 1401 | protected void paintContentBorderRightEdge(Graphics g, int tabPlacement, |
| 1402 | int selectedIndex, |
| 1403 | int x, int y, int w, int h) { |
| 1404 | Rectangle selRect = selectedIndex < 0? null : |
| 1405 | getTabBounds(selectedIndex, calcRect); |
| 1406 | |
| 1407 | g.setColor(shadow); |
| 1408 | |
| 1409 | // Draw unbroken line if tabs are not on RIGHT, OR |
| 1410 | // selected tab is not in run adjacent to content, OR |
| 1411 | // selected tab is not visible (SCROLL_TAB_LAYOUT) |
| 1412 | // |
| 1413 | if (tabPlacement != RIGHT || selectedIndex < 0 || |
| 1414 | (selRect.x - 1 > w) || |
| 1415 | (selRect.y < y || selRect.y > y + h)) { |
| 1416 | g.drawLine(x+w-2, y+1, x+w-2, y+h-3); |
| 1417 | g.setColor(darkShadow); |
| 1418 | g.drawLine(x+w-1, y, x+w-1, y+h-1); |
| 1419 | } else { |
| 1420 | // Break line to show visual connection to selected tab |
| 1421 | g.drawLine(x+w-2, y+1, x+w-2, selRect.y - 1); |
| 1422 | g.setColor(darkShadow); |
| 1423 | g.drawLine(x+w-1, y, x+w-1, selRect.y - 1); |
| 1424 | |
| 1425 | if (selRect.y + selRect.height < y + h - 2) { |
| 1426 | g.setColor(shadow); |
| 1427 | g.drawLine(x+w-2, selRect.y + selRect.height, |
| 1428 | x+w-2, y+h-2); |
| 1429 | g.setColor(darkShadow); |
| 1430 | g.drawLine(x+w-1, selRect.y + selRect.height, |
| 1431 | x+w-1, y+h-2); |
| 1432 | } |
| 1433 | } |
| 1434 | } |
| 1435 | |
| 1436 | private void ensureCurrentLayout() { |
| 1437 | if (!tabPane.isValid()) { |
| 1438 | tabPane.validate(); |
| 1439 | } |
| 1440 | /* If tabPane doesn't have a peer yet, the validate() call will |
| 1441 | * silently fail. We handle that by forcing a layout if tabPane |
| 1442 | * is still invalid. See bug 4237677. |
| 1443 | */ |
| 1444 | if (!tabPane.isValid()) { |
| 1445 | TabbedPaneLayout layout = (TabbedPaneLayout)tabPane.getLayout(); |
| 1446 | layout.calculateLayoutInfo(); |
| 1447 | } |
| 1448 | } |
| 1449 | |
| 1450 | |
| 1451 | // TabbedPaneUI methods |
| 1452 | |
| 1453 | /** |
| 1454 | * Returns the bounds of the specified tab index. The bounds are |
| 1455 | * with respect to the JTabbedPane's coordinate space. |
| 1456 | */ |
| 1457 | public Rectangle getTabBounds(JTabbedPane pane, int i) { |
| 1458 | ensureCurrentLayout(); |
| 1459 | Rectangle tabRect = new Rectangle(); |
| 1460 | return getTabBounds(i, tabRect); |
| 1461 | } |
| 1462 | |
| 1463 | public int getTabRunCount(JTabbedPane pane) { |
| 1464 | ensureCurrentLayout(); |
| 1465 | return runCount; |
| 1466 | } |
| 1467 | |
| 1468 | /** |
| 1469 | * Returns the tab index which intersects the specified point |
| 1470 | * in the JTabbedPane's coordinate space. |
| 1471 | */ |
| 1472 | public int tabForCoordinate(JTabbedPane pane, int x, int y) { |
| 1473 | return tabForCoordinate(pane, x, y, true); |
| 1474 | } |
| 1475 | |
| 1476 | private int tabForCoordinate(JTabbedPane pane, int x, int y, |
| 1477 | boolean validateIfNecessary) { |
| 1478 | if (validateIfNecessary) { |
| 1479 | ensureCurrentLayout(); |
| 1480 | } |
| 1481 | if (isRunsDirty) { |
| 1482 | // We didn't recalculate the layout, runs and tabCount may not |
| 1483 | // line up, bail. |
| 1484 | return -1; |
| 1485 | } |
| 1486 | Point p = new Point(x, y); |
| 1487 | |
| 1488 | if (scrollableTabLayoutEnabled()) { |
| 1489 | translatePointToTabPanel(x, y, p); |
| 1490 | Rectangle viewRect = tabScroller.viewport.getViewRect(); |
| 1491 | if (!viewRect.contains(p)) { |
| 1492 | return -1; |
| 1493 | } |
| 1494 | } |
| 1495 | int tabCount = tabPane.getTabCount(); |
| 1496 | for (int i = 0; i < tabCount; i++) { |
| 1497 | if (rects[i].contains(p.x, p.y)) { |
| 1498 | return i; |
| 1499 | } |
| 1500 | } |
| 1501 | return -1; |
| 1502 | } |
| 1503 | |
| 1504 | /** |
| 1505 | * Returns the bounds of the specified tab in the coordinate space |
| 1506 | * of the JTabbedPane component. This is required because the tab rects |
| 1507 | * are by default defined in the coordinate space of the component where |
| 1508 | * they are rendered, which could be the JTabbedPane |
| 1509 | * (for WRAP_TAB_LAYOUT) or a ScrollableTabPanel (SCROLL_TAB_LAYOUT). |
| 1510 | * This method should be used whenever the tab rectangle must be relative |
| 1511 | * to the JTabbedPane itself and the result should be placed in a |
| 1512 | * designated Rectangle object (rather than instantiating and returning |
| 1513 | * a new Rectangle each time). The tab index parameter must be a valid |
| 1514 | * tabbed pane tab index (0 to tab count - 1, inclusive). The destination |
| 1515 | * rectangle parameter must be a valid <code>Rectangle</code> instance. |
| 1516 | * The handling of invalid parameters is unspecified. |
| 1517 | * |
| 1518 | * @param tabIndex the index of the tab |
| 1519 | * @param dest the rectangle where the result should be placed |
| 1520 | * @return the resulting rectangle |
| 1521 | * |
| 1522 | * @since 1.4 |
| 1523 | */ |
| 1524 | protected Rectangle getTabBounds(int tabIndex, Rectangle dest) { |
| 1525 | dest.width = rects[tabIndex].width; |
| 1526 | dest.height = rects[tabIndex].height; |
| 1527 | |
| 1528 | if (scrollableTabLayoutEnabled()) { // SCROLL_TAB_LAYOUT |
| 1529 | // Need to translate coordinates based on viewport location & |
| 1530 | // view position |
| 1531 | Point vpp = tabScroller.viewport.getLocation(); |
| 1532 | Point viewp = tabScroller.viewport.getViewPosition(); |
| 1533 | dest.x = rects[tabIndex].x + vpp.x - viewp.x; |
| 1534 | dest.y = rects[tabIndex].y + vpp.y - viewp.y; |
| 1535 | |
| 1536 | } else { // WRAP_TAB_LAYOUT |
| 1537 | dest.x = rects[tabIndex].x; |
| 1538 | dest.y = rects[tabIndex].y; |
| 1539 | } |
| 1540 | return dest; |
| 1541 | } |
| 1542 | |
| 1543 | /** |
| 1544 | * Returns the index of the tab closest to the passed in location, note |
| 1545 | * that the returned tab may not contain the location x,y. |
| 1546 | */ |
| 1547 | private int getClosestTab(int x, int y) { |
| 1548 | int min = 0; |
| 1549 | int tabCount = Math.min(rects.length, tabPane.getTabCount()); |
| 1550 | int max = tabCount; |
| 1551 | int tabPlacement = tabPane.getTabPlacement(); |
| 1552 | boolean useX = (tabPlacement == TOP || tabPlacement == BOTTOM); |
| 1553 | int want = (useX) ? x : y; |
| 1554 | |
| 1555 | while (min != max) { |
| 1556 | int current = (max + min) / 2; |
| 1557 | int minLoc; |
| 1558 | int maxLoc; |
| 1559 | |
| 1560 | if (useX) { |
| 1561 | minLoc = rects[current].x; |
| 1562 | maxLoc = minLoc + rects[current].width; |
| 1563 | } |
| 1564 | else { |
| 1565 | minLoc = rects[current].y; |
| 1566 | maxLoc = minLoc + rects[current].height; |
| 1567 | } |
| 1568 | if (want < minLoc) { |
| 1569 | max = current; |
| 1570 | if (min == max) { |
| 1571 | return Math.max(0, current - 1); |
| 1572 | } |
| 1573 | } |
| 1574 | else if (want >= maxLoc) { |
| 1575 | min = current; |
| 1576 | if (max - min <= 1) { |
| 1577 | return Math.max(current + 1, tabCount - 1); |
| 1578 | } |
| 1579 | } |
| 1580 | else { |
| 1581 | return current; |
| 1582 | } |
| 1583 | } |
| 1584 | return min; |
| 1585 | } |
| 1586 | |
| 1587 | /** |
| 1588 | * Returns a point which is translated from the specified point in the |
| 1589 | * JTabbedPane's coordinate space to the coordinate space of the |
| 1590 | * ScrollableTabPanel. This is used for SCROLL_TAB_LAYOUT ONLY. |
| 1591 | */ |
| 1592 | private Point translatePointToTabPanel(int srcx, int srcy, Point dest) { |
| 1593 | Point vpp = tabScroller.viewport.getLocation(); |
| 1594 | Point viewp = tabScroller.viewport.getViewPosition(); |
| 1595 | dest.x = srcx - vpp.x + viewp.x; |
| 1596 | dest.y = srcy - vpp.y + viewp.y; |
| 1597 | return dest; |
| 1598 | } |
| 1599 | |
| 1600 | // BasicTabbedPaneUI methods |
| 1601 | |
| 1602 | protected Component getVisibleComponent() { |
| 1603 | return visibleComponent; |
| 1604 | } |
| 1605 | |
| 1606 | protected void setVisibleComponent(Component component) { |
| 1607 | if (visibleComponent != null |
| 1608 | && visibleComponent != component |
| 1609 | && visibleComponent.getParent() == tabPane |
| 1610 | && visibleComponent.isVisible()) { |
| 1611 | |
| 1612 | visibleComponent.setVisible(false); |
| 1613 | } |
| 1614 | if (component != null && !component.isVisible()) { |
| 1615 | component.setVisible(true); |
| 1616 | } |
| 1617 | visibleComponent = component; |
| 1618 | } |
| 1619 | |
| 1620 | protected void assureRectsCreated(int tabCount) { |
| 1621 | int rectArrayLen = rects.length; |
| 1622 | if (tabCount != rectArrayLen ) { |
| 1623 | Rectangle[] tempRectArray = new Rectangle[tabCount]; |
| 1624 | System.arraycopy(rects, 0, tempRectArray, 0, |
| 1625 | Math.min(rectArrayLen, tabCount)); |
| 1626 | rects = tempRectArray; |
| 1627 | for (int rectIndex = rectArrayLen; rectIndex < tabCount; rectIndex++) { |
| 1628 | rects[rectIndex] = new Rectangle(); |
| 1629 | } |
| 1630 | } |
| 1631 | |
| 1632 | } |
| 1633 | |
| 1634 | protected void expandTabRunsArray() { |
| 1635 | int rectLen = tabRuns.length; |
| 1636 | int[] newArray = new int[rectLen+10]; |
| 1637 | System.arraycopy(tabRuns, 0, newArray, 0, runCount); |
| 1638 | tabRuns = newArray; |
| 1639 | } |
| 1640 | |
| 1641 | protected int getRunForTab(int tabCount, int tabIndex) { |
| 1642 | for (int i = 0; i < runCount; i++) { |
| 1643 | int first = tabRuns[i]; |
| 1644 | int last = lastTabInRun(tabCount, i); |
| 1645 | if (tabIndex >= first && tabIndex <= last) { |
| 1646 | return i; |
| 1647 | } |
| 1648 | } |
| 1649 | return 0; |
| 1650 | } |
| 1651 | |
| 1652 | protected int lastTabInRun(int tabCount, int run) { |
| 1653 | if (runCount == 1) { |
| 1654 | return tabCount - 1; |
| 1655 | } |
| 1656 | int nextRun = (run == runCount - 1? 0 : run + 1); |
| 1657 | if (tabRuns[nextRun] == 0) { |
| 1658 | return tabCount - 1; |
| 1659 | } |
| 1660 | return tabRuns[nextRun]-1; |
| 1661 | } |
| 1662 | |
| 1663 | protected int getTabRunOverlay(int tabPlacement) { |
| 1664 | return tabRunOverlay; |
| 1665 | } |
| 1666 | |
| 1667 | protected int getTabRunIndent(int tabPlacement, int run) { |
| 1668 | return 0; |
| 1669 | } |
| 1670 | |
| 1671 | protected boolean shouldPadTabRun(int tabPlacement, int run) { |
| 1672 | return runCount > 1; |
| 1673 | } |
| 1674 | |
| 1675 | protected boolean shouldRotateTabRuns(int tabPlacement) { |
| 1676 | return true; |
| 1677 | } |
| 1678 | |
| 1679 | protected Icon getIconForTab(int tabIndex) { |
| 1680 | return (!tabPane.isEnabled() || !tabPane.isEnabledAt(tabIndex))? |
| 1681 | tabPane.getDisabledIconAt(tabIndex) : tabPane.getIconAt(tabIndex); |
| 1682 | } |
| 1683 | |
| 1684 | /** |
| 1685 | * Returns the text View object required to render stylized text (HTML) for |
| 1686 | * the specified tab or null if no specialized text rendering is needed |
| 1687 | * for this tab. This is provided to support html rendering inside tabs. |
| 1688 | * |
| 1689 | * @param tabIndex the index of the tab |
| 1690 | * @return the text view to render the tab's text or null if no |
| 1691 | * specialized rendering is required |
| 1692 | * |
| 1693 | * @since 1.4 |
| 1694 | */ |
| 1695 | protected View getTextViewForTab(int tabIndex) { |
| 1696 | if (htmlViews != null) { |
| 1697 | return (View)htmlViews.elementAt(tabIndex); |
| 1698 | } |
| 1699 | return null; |
| 1700 | } |
| 1701 | |
| 1702 | protected int calculateTabHeight(int tabPlacement, int tabIndex, int fontHeight) { |
| 1703 | int height = 0; |
| 1704 | Component c = tabPane.getTabComponentAt(tabIndex); |
| 1705 | if (c != null) { |
| 1706 | height = c.getPreferredSize().height; |
| 1707 | } else { |
| 1708 | View v = getTextViewForTab(tabIndex); |
| 1709 | if (v != null) { |
| 1710 | // html |
| 1711 | height += (int) v.getPreferredSpan(View.Y_AXIS); |
| 1712 | } else { |
| 1713 | // plain text |
| 1714 | height += fontHeight; |
| 1715 | } |
| 1716 | Icon icon = getIconForTab(tabIndex); |
| 1717 | |
| 1718 | if (icon != null) { |
| 1719 | height = Math.max(height, icon.getIconHeight()); |
| 1720 | } |
| 1721 | } |
| 1722 | Insets tabInsets = getTabInsets(tabPlacement, tabIndex); |
| 1723 | height += tabInsets.top + tabInsets.bottom + 2; |
| 1724 | return height; |
| 1725 | } |
| 1726 | |
| 1727 | protected int calculateMaxTabHeight(int tabPlacement) { |
| 1728 | FontMetrics metrics = getFontMetrics(); |
| 1729 | int tabCount = tabPane.getTabCount(); |
| 1730 | int result = 0; |
| 1731 | int fontHeight = metrics.getHeight(); |
| 1732 | for(int i = 0; i < tabCount; i++) { |
| 1733 | result = Math.max(calculateTabHeight(tabPlacement, i, fontHeight), result); |
| 1734 | } |
| 1735 | return result; |
| 1736 | } |
| 1737 | |
| 1738 | protected int calculateTabWidth(int tabPlacement, int tabIndex, FontMetrics metrics) { |
| 1739 | Insets tabInsets = getTabInsets(tabPlacement, tabIndex); |
| 1740 | int width = tabInsets.left + tabInsets.right + 3; |
| 1741 | Component tabComponent = tabPane.getTabComponentAt(tabIndex); |
| 1742 | if (tabComponent != null) { |
| 1743 | width += tabComponent.getPreferredSize().width; |
| 1744 | } else { |
| 1745 | Icon icon = getIconForTab(tabIndex); |
| 1746 | if (icon != null) { |
| 1747 | width += icon.getIconWidth() + textIconGap; |
| 1748 | } |
| 1749 | View v = getTextViewForTab(tabIndex); |
| 1750 | if (v != null) { |
| 1751 | // html |
| 1752 | width += (int) v.getPreferredSpan(View.X_AXIS); |
| 1753 | } else { |
| 1754 | // plain text |
| 1755 | String title = tabPane.getTitleAt(tabIndex); |
| 1756 | width += SwingUtilities2.stringWidth(tabPane, metrics, title); |
| 1757 | } |
| 1758 | } |
| 1759 | return width; |
| 1760 | } |
| 1761 | |
| 1762 | protected int calculateMaxTabWidth(int tabPlacement) { |
| 1763 | FontMetrics metrics = getFontMetrics(); |
| 1764 | int tabCount = tabPane.getTabCount(); |
| 1765 | int result = 0; |
| 1766 | for(int i = 0; i < tabCount; i++) { |
| 1767 | result = Math.max(calculateTabWidth(tabPlacement, i, metrics), result); |
| 1768 | } |
| 1769 | return result; |
| 1770 | } |
| 1771 | |
| 1772 | protected int calculateTabAreaHeight(int tabPlacement, int horizRunCount, int maxTabHeight) { |
| 1773 | Insets tabAreaInsets = getTabAreaInsets(tabPlacement); |
| 1774 | int tabRunOverlay = getTabRunOverlay(tabPlacement); |
| 1775 | return (horizRunCount > 0? |
| 1776 | horizRunCount * (maxTabHeight-tabRunOverlay) + tabRunOverlay + |
| 1777 | tabAreaInsets.top + tabAreaInsets.bottom : |
| 1778 | 0); |
| 1779 | } |
| 1780 | |
| 1781 | protected int calculateTabAreaWidth(int tabPlacement, int vertRunCount, int maxTabWidth) { |
| 1782 | Insets tabAreaInsets = getTabAreaInsets(tabPlacement); |
| 1783 | int tabRunOverlay = getTabRunOverlay(tabPlacement); |
| 1784 | return (vertRunCount > 0? |
| 1785 | vertRunCount * (maxTabWidth-tabRunOverlay) + tabRunOverlay + |
| 1786 | tabAreaInsets.left + tabAreaInsets.right : |
| 1787 | 0); |
| 1788 | } |
| 1789 | |
| 1790 | protected Insets getTabInsets(int tabPlacement, int tabIndex) { |
| 1791 | return tabInsets; |
| 1792 | } |
| 1793 | |
| 1794 | protected Insets getSelectedTabPadInsets(int tabPlacement) { |
| 1795 | rotateInsets(selectedTabPadInsets, currentPadInsets, tabPlacement); |
| 1796 | return currentPadInsets; |
| 1797 | } |
| 1798 | |
| 1799 | protected Insets getTabAreaInsets(int tabPlacement) { |
| 1800 | rotateInsets(tabAreaInsets, currentTabAreaInsets, tabPlacement); |
| 1801 | return currentTabAreaInsets; |
| 1802 | } |
| 1803 | |
| 1804 | protected Insets getContentBorderInsets(int tabPlacement) { |
| 1805 | return contentBorderInsets; |
| 1806 | } |
| 1807 | |
| 1808 | protected FontMetrics getFontMetrics() { |
| 1809 | Font font = tabPane.getFont(); |
| 1810 | return tabPane.getFontMetrics(font); |
| 1811 | } |
| 1812 | |
| 1813 | |
| 1814 | // Tab Navigation methods |
| 1815 | |
| 1816 | protected void navigateSelectedTab(int direction) { |
| 1817 | int tabPlacement = tabPane.getTabPlacement(); |
| 1818 | int current = DefaultLookup.getBoolean(tabPane, this, |
| 1819 | "TabbedPane.selectionFollowsFocus", true) ? |
| 1820 | tabPane.getSelectedIndex() : getFocusIndex(); |
| 1821 | int tabCount = tabPane.getTabCount(); |
| 1822 | boolean leftToRight = BasicGraphicsUtils.isLeftToRight(tabPane); |
| 1823 | |
| 1824 | // If we have no tabs then don't navigate. |
| 1825 | if (tabCount <= 0) { |
| 1826 | return; |
| 1827 | } |
| 1828 | |
| 1829 | int offset; |
| 1830 | switch(tabPlacement) { |
| 1831 | case LEFT: |
| 1832 | case RIGHT: |
| 1833 | switch(direction) { |
| 1834 | case NEXT: |
| 1835 | selectNextTab(current); |
| 1836 | break; |
| 1837 | case PREVIOUS: |
| 1838 | selectPreviousTab(current); |
| 1839 | break; |
| 1840 | case NORTH: |
| 1841 | selectPreviousTabInRun(current); |
| 1842 | break; |
| 1843 | case SOUTH: |
| 1844 | selectNextTabInRun(current); |
| 1845 | break; |
| 1846 | case WEST: |
| 1847 | offset = getTabRunOffset(tabPlacement, tabCount, current, false); |
| 1848 | selectAdjacentRunTab(tabPlacement, current, offset); |
| 1849 | break; |
| 1850 | case EAST: |
| 1851 | offset = getTabRunOffset(tabPlacement, tabCount, current, true); |
| 1852 | selectAdjacentRunTab(tabPlacement, current, offset); |
| 1853 | break; |
| 1854 | default: |
| 1855 | } |
| 1856 | break; |
| 1857 | case BOTTOM: |
| 1858 | case TOP: |
| 1859 | default: |
| 1860 | switch(direction) { |
| 1861 | case NEXT: |
| 1862 | selectNextTab(current); |
| 1863 | break; |
| 1864 | case PREVIOUS: |
| 1865 | selectPreviousTab(current); |
| 1866 | break; |
| 1867 | case NORTH: |
| 1868 | offset = getTabRunOffset(tabPlacement, tabCount, current, false); |
| 1869 | selectAdjacentRunTab(tabPlacement, current, offset); |
| 1870 | break; |
| 1871 | case SOUTH: |
| 1872 | offset = getTabRunOffset(tabPlacement, tabCount, current, true); |
| 1873 | selectAdjacentRunTab(tabPlacement, current, offset); |
| 1874 | break; |
| 1875 | case EAST: |
| 1876 | if (leftToRight) { |
| 1877 | selectNextTabInRun(current); |
| 1878 | } else { |
| 1879 | selectPreviousTabInRun(current); |
| 1880 | } |
| 1881 | break; |
| 1882 | case WEST: |
| 1883 | if (leftToRight) { |
| 1884 | selectPreviousTabInRun(current); |
| 1885 | } else { |
| 1886 | selectNextTabInRun(current); |
| 1887 | } |
| 1888 | break; |
| 1889 | default: |
| 1890 | } |
| 1891 | } |
| 1892 | } |
| 1893 | |
| 1894 | protected void selectNextTabInRun(int current) { |
| 1895 | int tabCount = tabPane.getTabCount(); |
| 1896 | int tabIndex = getNextTabIndexInRun(tabCount, current); |
| 1897 | |
| 1898 | while(tabIndex != current && !tabPane.isEnabledAt(tabIndex)) { |
| 1899 | tabIndex = getNextTabIndexInRun(tabCount, tabIndex); |
| 1900 | } |
| 1901 | navigateTo(tabIndex); |
| 1902 | } |
| 1903 | |
| 1904 | protected void selectPreviousTabInRun(int current) { |
| 1905 | int tabCount = tabPane.getTabCount(); |
| 1906 | int tabIndex = getPreviousTabIndexInRun(tabCount, current); |
| 1907 | |
| 1908 | while(tabIndex != current && !tabPane.isEnabledAt(tabIndex)) { |
| 1909 | tabIndex = getPreviousTabIndexInRun(tabCount, tabIndex); |
| 1910 | } |
| 1911 | navigateTo(tabIndex); |
| 1912 | } |
| 1913 | |
| 1914 | protected void selectNextTab(int current) { |
| 1915 | int tabIndex = getNextTabIndex(current); |
| 1916 | |
| 1917 | while (tabIndex != current && !tabPane.isEnabledAt(tabIndex)) { |
| 1918 | tabIndex = getNextTabIndex(tabIndex); |
| 1919 | } |
| 1920 | navigateTo(tabIndex); |
| 1921 | } |
| 1922 | |
| 1923 | protected void selectPreviousTab(int current) { |
| 1924 | int tabIndex = getPreviousTabIndex(current); |
| 1925 | |
| 1926 | while (tabIndex != current && !tabPane.isEnabledAt(tabIndex)) { |
| 1927 | tabIndex = getPreviousTabIndex(tabIndex); |
| 1928 | } |
| 1929 | navigateTo(tabIndex); |
| 1930 | } |
| 1931 | |
| 1932 | protected void selectAdjacentRunTab(int tabPlacement, |
| 1933 | int tabIndex, int offset) { |
| 1934 | if ( runCount < 2 ) { |
| 1935 | return; |
| 1936 | } |
| 1937 | int newIndex; |
| 1938 | Rectangle r = rects[tabIndex]; |
| 1939 | switch(tabPlacement) { |
| 1940 | case LEFT: |
| 1941 | case RIGHT: |
| 1942 | newIndex = tabForCoordinate(tabPane, r.x + r.width/2 + offset, |
| 1943 | r.y + r.height/2); |
| 1944 | break; |
| 1945 | case BOTTOM: |
| 1946 | case TOP: |
| 1947 | default: |
| 1948 | newIndex = tabForCoordinate(tabPane, r.x + r.width/2, |
| 1949 | r.y + r.height/2 + offset); |
| 1950 | } |
| 1951 | if (newIndex != -1) { |
| 1952 | while (!tabPane.isEnabledAt(newIndex) && newIndex != tabIndex) { |
| 1953 | newIndex = getNextTabIndex(newIndex); |
| 1954 | } |
| 1955 | navigateTo(newIndex); |
| 1956 | } |
| 1957 | } |
| 1958 | |
| 1959 | private void navigateTo(int index) { |
| 1960 | if (DefaultLookup.getBoolean(tabPane, this, |
| 1961 | "TabbedPane.selectionFollowsFocus", true)) { |
| 1962 | tabPane.setSelectedIndex(index); |
| 1963 | } else { |
| 1964 | // Just move focus (not selection) |
| 1965 | setFocusIndex(index, true); |
| 1966 | } |
| 1967 | } |
| 1968 | |
| 1969 | void setFocusIndex(int index, boolean repaint) { |
| 1970 | if (repaint && !isRunsDirty) { |
| 1971 | repaintTab(focusIndex); |
| 1972 | focusIndex = index; |
| 1973 | repaintTab(focusIndex); |
| 1974 | } |
| 1975 | else { |
| 1976 | focusIndex = index; |
| 1977 | } |
| 1978 | } |
| 1979 | |
| 1980 | /** |
| 1981 | * Repaints the specified tab. |
| 1982 | */ |
| 1983 | private void repaintTab(int index) { |
| 1984 | // If we're not valid that means we will shortly be validated and |
| 1985 | // painted, which means we don't have to do anything here. |
| 1986 | if (!isRunsDirty && index >= 0 && index < tabPane.getTabCount()) { |
| 1987 | tabPane.repaint(getTabBounds(tabPane, index)); |
| 1988 | } |
| 1989 | } |
| 1990 | |
| 1991 | /** |
| 1992 | * Makes sure the focusIndex is valid. |
| 1993 | */ |
| 1994 | private void validateFocusIndex() { |
| 1995 | if (focusIndex >= tabPane.getTabCount()) { |
| 1996 | setFocusIndex(tabPane.getSelectedIndex(), false); |
| 1997 | } |
| 1998 | } |
| 1999 | |
| 2000 | /** |
| 2001 | * Returns the index of the tab that has focus. |
| 2002 | * |
| 2003 | * @return index of tab that has focus |
| 2004 | * @since 1.5 |
| 2005 | */ |
| 2006 | protected int getFocusIndex() { |
| 2007 | return focusIndex; |
| 2008 | } |
| 2009 | |
| 2010 | protected int getTabRunOffset(int tabPlacement, int tabCount, |
| 2011 | int tabIndex, boolean forward) { |
| 2012 | int run = getRunForTab(tabCount, tabIndex); |
| 2013 | int offset; |
| 2014 | switch(tabPlacement) { |
| 2015 | case LEFT: { |
| 2016 | if (run == 0) { |
| 2017 | offset = (forward? |
| 2018 | -(calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth)-maxTabWidth) : |
| 2019 | -maxTabWidth); |
| 2020 | |
| 2021 | } else if (run == runCount - 1) { |
| 2022 | offset = (forward? |
| 2023 | maxTabWidth : |
| 2024 | calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth)-maxTabWidth); |
| 2025 | } else { |
| 2026 | offset = (forward? maxTabWidth : -maxTabWidth); |
| 2027 | } |
| 2028 | break; |
| 2029 | } |
| 2030 | case RIGHT: { |
| 2031 | if (run == 0) { |
| 2032 | offset = (forward? |
| 2033 | maxTabWidth : |
| 2034 | calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth)-maxTabWidth); |
| 2035 | } else if (run == runCount - 1) { |
| 2036 | offset = (forward? |
| 2037 | -(calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth)-maxTabWidth) : |
| 2038 | -maxTabWidth); |
| 2039 | } else { |
| 2040 | offset = (forward? maxTabWidth : -maxTabWidth); |
| 2041 | } |
| 2042 | break; |
| 2043 | } |
| 2044 | case BOTTOM: { |
| 2045 | if (run == 0) { |
| 2046 | offset = (forward? |
| 2047 | maxTabHeight : |
| 2048 | calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight)-maxTabHeight); |
| 2049 | } else if (run == runCount - 1) { |
| 2050 | offset = (forward? |
| 2051 | -(calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight)-maxTabHeight) : |
| 2052 | -maxTabHeight); |
| 2053 | } else { |
| 2054 | offset = (forward? maxTabHeight : -maxTabHeight); |
| 2055 | } |
| 2056 | break; |
| 2057 | } |
| 2058 | case TOP: |
| 2059 | default: { |
| 2060 | if (run == 0) { |
| 2061 | offset = (forward? |
| 2062 | -(calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight)-maxTabHeight) : |
| 2063 | -maxTabHeight); |
| 2064 | } else if (run == runCount - 1) { |
| 2065 | offset = (forward? |
| 2066 | maxTabHeight : |
| 2067 | calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight)-maxTabHeight); |
| 2068 | } else { |
| 2069 | offset = (forward? maxTabHeight : -maxTabHeight); |
| 2070 | } |
| 2071 | } |
| 2072 | } |
| 2073 | return offset; |
| 2074 | } |
| 2075 | |
| 2076 | protected int getPreviousTabIndex(int base) { |
| 2077 | int tabIndex = (base - 1 >= 0? base - 1 : tabPane.getTabCount() - 1); |
| 2078 | return (tabIndex >= 0? tabIndex : 0); |
| 2079 | } |
| 2080 | |
| 2081 | protected int getNextTabIndex(int base) { |
| 2082 | return (base+1)%tabPane.getTabCount(); |
| 2083 | } |
| 2084 | |
| 2085 | protected int getNextTabIndexInRun(int tabCount, int base) { |
| 2086 | if (runCount < 2) { |
| 2087 | return getNextTabIndex(base); |
| 2088 | } |
| 2089 | int currentRun = getRunForTab(tabCount, base); |
| 2090 | int next = getNextTabIndex(base); |
| 2091 | if (next == tabRuns[getNextTabRun(currentRun)]) { |
| 2092 | return tabRuns[currentRun]; |
| 2093 | } |
| 2094 | return next; |
| 2095 | } |
| 2096 | |
| 2097 | protected int getPreviousTabIndexInRun(int tabCount, int base) { |
| 2098 | if (runCount < 2) { |
| 2099 | return getPreviousTabIndex(base); |
| 2100 | } |
| 2101 | int currentRun = getRunForTab(tabCount, base); |
| 2102 | if (base == tabRuns[currentRun]) { |
| 2103 | int previous = tabRuns[getNextTabRun(currentRun)]-1; |
| 2104 | return (previous != -1? previous : tabCount-1); |
| 2105 | } |
| 2106 | return getPreviousTabIndex(base); |
| 2107 | } |
| 2108 | |
| 2109 | protected int getPreviousTabRun(int baseRun) { |
| 2110 | int runIndex = (baseRun - 1 >= 0? baseRun - 1 : runCount - 1); |
| 2111 | return (runIndex >= 0? runIndex : 0); |
| 2112 | } |
| 2113 | |
| 2114 | protected int getNextTabRun(int baseRun) { |
| 2115 | return (baseRun+1)%runCount; |
| 2116 | } |
| 2117 | |
| 2118 | protected static void rotateInsets(Insets topInsets, Insets targetInsets, int targetPlacement) { |
| 2119 | |
| 2120 | switch(targetPlacement) { |
| 2121 | case LEFT: |
| 2122 | targetInsets.top = topInsets.left; |
| 2123 | targetInsets.left = topInsets.top; |
| 2124 | targetInsets.bottom = topInsets.right; |
| 2125 | targetInsets.right = topInsets.bottom; |
| 2126 | break; |
| 2127 | case BOTTOM: |
| 2128 | targetInsets.top = topInsets.bottom; |
| 2129 | targetInsets.left = topInsets.left; |
| 2130 | targetInsets.bottom = topInsets.top; |
| 2131 | targetInsets.right = topInsets.right; |
| 2132 | break; |
| 2133 | case RIGHT: |
| 2134 | targetInsets.top = topInsets.left; |
| 2135 | targetInsets.left = topInsets.bottom; |
| 2136 | targetInsets.bottom = topInsets.right; |
| 2137 | targetInsets.right = topInsets.top; |
| 2138 | break; |
| 2139 | case TOP: |
| 2140 | default: |
| 2141 | targetInsets.top = topInsets.top; |
| 2142 | targetInsets.left = topInsets.left; |
| 2143 | targetInsets.bottom = topInsets.bottom; |
| 2144 | targetInsets.right = topInsets.right; |
| 2145 | } |
| 2146 | } |
| 2147 | |
| 2148 | // REMIND(aim,7/29/98): This method should be made |
| 2149 | // protected in the next release where |
| 2150 | // API changes are allowed |
| 2151 | boolean requestFocusForVisibleComponent() { |
| 2152 | return SwingUtilities2.tabbedPaneChangeFocusTo(getVisibleComponent()); |
| 2153 | } |
| 2154 | |
| 2155 | private static class Actions extends UIAction { |
| 2156 | final static String NEXT = "navigateNext"; |
| 2157 | final static String PREVIOUS = "navigatePrevious"; |
| 2158 | final static String RIGHT = "navigateRight"; |
| 2159 | final static String LEFT = "navigateLeft"; |
| 2160 | final static String UP = "navigateUp"; |
| 2161 | final static String DOWN = "navigateDown"; |
| 2162 | final static String PAGE_UP = "navigatePageUp"; |
| 2163 | final static String PAGE_DOWN = "navigatePageDown"; |
| 2164 | final static String REQUEST_FOCUS = "requestFocus"; |
| 2165 | final static String REQUEST_FOCUS_FOR_VISIBLE = |
| 2166 | "requestFocusForVisibleComponent"; |
| 2167 | final static String SET_SELECTED = "setSelectedIndex"; |
| 2168 | final static String SELECT_FOCUSED = "selectTabWithFocus"; |
| 2169 | final static String SCROLL_FORWARD = "scrollTabsForwardAction"; |
| 2170 | final static String SCROLL_BACKWARD = "scrollTabsBackwardAction"; |
| 2171 | |
| 2172 | Actions(String key) { |
| 2173 | super(key); |
| 2174 | } |
| 2175 | |
| 2176 | public void actionPerformed(ActionEvent e) { |
| 2177 | String key = getName(); |
| 2178 | JTabbedPane pane = (JTabbedPane)e.getSource(); |
| 2179 | BasicTabbedPaneUI ui = (BasicTabbedPaneUI)BasicLookAndFeel. |
| 2180 | getUIOfType(pane.getUI(), BasicTabbedPaneUI.class); |
| 2181 | |
| 2182 | if (ui == null) { |
| 2183 | return; |
| 2184 | } |
| 2185 | if (key == NEXT) { |
| 2186 | ui.navigateSelectedTab(SwingConstants.NEXT); |
| 2187 | } |
| 2188 | else if (key == PREVIOUS) { |
| 2189 | ui.navigateSelectedTab(SwingConstants.PREVIOUS); |
| 2190 | } |
| 2191 | else if (key == RIGHT) { |
| 2192 | ui.navigateSelectedTab(SwingConstants.EAST); |
| 2193 | } |
| 2194 | else if (key == LEFT) { |
| 2195 | ui.navigateSelectedTab(SwingConstants.WEST); |
| 2196 | } |
| 2197 | else if (key == UP) { |
| 2198 | ui.navigateSelectedTab(SwingConstants.NORTH); |
| 2199 | } |
| 2200 | else if (key == DOWN) { |
| 2201 | ui.navigateSelectedTab(SwingConstants.SOUTH); |
| 2202 | } |
| 2203 | else if (key == PAGE_UP) { |
| 2204 | int tabPlacement = pane.getTabPlacement(); |
| 2205 | if (tabPlacement == TOP|| tabPlacement == BOTTOM) { |
| 2206 | ui.navigateSelectedTab(SwingConstants.WEST); |
| 2207 | } else { |
| 2208 | ui.navigateSelectedTab(SwingConstants.NORTH); |
| 2209 | } |
| 2210 | } |
| 2211 | else if (key == PAGE_DOWN) { |
| 2212 | int tabPlacement = pane.getTabPlacement(); |
| 2213 | if (tabPlacement == TOP || tabPlacement == BOTTOM) { |
| 2214 | ui.navigateSelectedTab(SwingConstants.EAST); |
| 2215 | } else { |
| 2216 | ui.navigateSelectedTab(SwingConstants.SOUTH); |
| 2217 | } |
| 2218 | } |
| 2219 | else if (key == REQUEST_FOCUS) { |
| 2220 | pane.requestFocus(); |
| 2221 | } |
| 2222 | else if (key == REQUEST_FOCUS_FOR_VISIBLE) { |
| 2223 | ui.requestFocusForVisibleComponent(); |
| 2224 | } |
| 2225 | else if (key == SET_SELECTED) { |
| 2226 | String command = e.getActionCommand(); |
| 2227 | |
| 2228 | if (command != null && command.length() > 0) { |
| 2229 | int mnemonic = (int)e.getActionCommand().charAt(0); |
| 2230 | if (mnemonic >= 'a' && mnemonic <='z') { |
| 2231 | mnemonic -= ('a' - 'A'); |
| 2232 | } |
| 2233 | Integer index = (Integer)ui.mnemonicToIndexMap. |
| 2234 | get(new Integer(mnemonic)); |
| 2235 | if (index != null && pane.isEnabledAt(index.intValue())) { |
| 2236 | pane.setSelectedIndex(index.intValue()); |
| 2237 | } |
| 2238 | } |
| 2239 | } |
| 2240 | else if (key == SELECT_FOCUSED) { |
| 2241 | int focusIndex = ui.getFocusIndex(); |
| 2242 | if (focusIndex != -1) { |
| 2243 | pane.setSelectedIndex(focusIndex); |
| 2244 | } |
| 2245 | } |
| 2246 | else if (key == SCROLL_FORWARD) { |
| 2247 | if (ui.scrollableTabLayoutEnabled()) { |
| 2248 | ui.tabScroller.scrollForward(pane.getTabPlacement()); |
| 2249 | } |
| 2250 | } |
| 2251 | else if (key == SCROLL_BACKWARD) { |
| 2252 | if (ui.scrollableTabLayoutEnabled()) { |
| 2253 | ui.tabScroller.scrollBackward(pane.getTabPlacement()); |
| 2254 | } |
| 2255 | } |
| 2256 | } |
| 2257 | } |
| 2258 | |
| 2259 | /** |
| 2260 | * This class should be treated as a "protected" inner class. |
| 2261 | * Instantiate it only within subclasses of BasicTabbedPaneUI. |
| 2262 | */ |
| 2263 | public class TabbedPaneLayout implements LayoutManager { |
| 2264 | |
| 2265 | public void addLayoutComponent(String name, Component comp) {} |
| 2266 | |
| 2267 | public void removeLayoutComponent(Component comp) {} |
| 2268 | |
| 2269 | public Dimension preferredLayoutSize(Container parent) { |
| 2270 | return calculateSize(false); |
| 2271 | } |
| 2272 | |
| 2273 | public Dimension minimumLayoutSize(Container parent) { |
| 2274 | return calculateSize(true); |
| 2275 | } |
| 2276 | |
| 2277 | protected Dimension calculateSize(boolean minimum) { |
| 2278 | int tabPlacement = tabPane.getTabPlacement(); |
| 2279 | Insets insets = tabPane.getInsets(); |
| 2280 | Insets contentInsets = getContentBorderInsets(tabPlacement); |
| 2281 | Insets tabAreaInsets = getTabAreaInsets(tabPlacement); |
| 2282 | |
| 2283 | Dimension zeroSize = new Dimension(0,0); |
| 2284 | int height = 0; |
| 2285 | int width = 0; |
| 2286 | int cWidth = 0; |
| 2287 | int cHeight = 0; |
| 2288 | |
| 2289 | // Determine minimum size required to display largest |
| 2290 | // child in each dimension |
| 2291 | // |
| 2292 | for (int i = 0; i < tabPane.getTabCount(); i++) { |
| 2293 | Component component = tabPane.getComponentAt(i); |
| 2294 | if (component != null) { |
| 2295 | Dimension size = zeroSize; |
| 2296 | size = minimum? component.getMinimumSize() : |
| 2297 | component.getPreferredSize(); |
| 2298 | |
| 2299 | if (size != null) { |
| 2300 | cHeight = Math.max(size.height, cHeight); |
| 2301 | cWidth = Math.max(size.width, cWidth); |
| 2302 | } |
| 2303 | } |
| 2304 | } |
| 2305 | // Add content border insets to minimum size |
| 2306 | width += cWidth; |
| 2307 | height += cHeight; |
| 2308 | int tabExtent = 0; |
| 2309 | |
| 2310 | // Calculate how much space the tabs will need, based on the |
| 2311 | // minimum size required to display largest child + content border |
| 2312 | // |
| 2313 | switch(tabPlacement) { |
| 2314 | case LEFT: |
| 2315 | case RIGHT: |
| 2316 | height = Math.max(height, calculateMaxTabHeight(tabPlacement)); |
| 2317 | tabExtent = preferredTabAreaWidth(tabPlacement, height - tabAreaInsets.top - tabAreaInsets.bottom); |
| 2318 | width += tabExtent; |
| 2319 | break; |
| 2320 | case TOP: |
| 2321 | case BOTTOM: |
| 2322 | default: |
| 2323 | width = Math.max(width, calculateMaxTabWidth(tabPlacement)); |
| 2324 | tabExtent = preferredTabAreaHeight(tabPlacement, width - tabAreaInsets.left - tabAreaInsets.right); |
| 2325 | height += tabExtent; |
| 2326 | } |
| 2327 | return new Dimension(width + insets.left + insets.right + contentInsets.left + contentInsets.right, |
| 2328 | height + insets.bottom + insets.top + contentInsets.top + contentInsets.bottom); |
| 2329 | |
| 2330 | } |
| 2331 | |
| 2332 | protected int preferredTabAreaHeight(int tabPlacement, int width) { |
| 2333 | FontMetrics metrics = getFontMetrics(); |
| 2334 | int tabCount = tabPane.getTabCount(); |
| 2335 | int total = 0; |
| 2336 | if (tabCount > 0) { |
| 2337 | int rows = 1; |
| 2338 | int x = 0; |
| 2339 | |
| 2340 | int maxTabHeight = calculateMaxTabHeight(tabPlacement); |
| 2341 | |
| 2342 | for (int i = 0; i < tabCount; i++) { |
| 2343 | int tabWidth = calculateTabWidth(tabPlacement, i, metrics); |
| 2344 | |
| 2345 | if (x != 0 && x + tabWidth > width) { |
| 2346 | rows++; |
| 2347 | x = 0; |
| 2348 | } |
| 2349 | x += tabWidth; |
| 2350 | } |
| 2351 | total = calculateTabAreaHeight(tabPlacement, rows, maxTabHeight); |
| 2352 | } |
| 2353 | return total; |
| 2354 | } |
| 2355 | |
| 2356 | protected int preferredTabAreaWidth(int tabPlacement, int height) { |
| 2357 | FontMetrics metrics = getFontMetrics(); |
| 2358 | int tabCount = tabPane.getTabCount(); |
| 2359 | int total = 0; |
| 2360 | if (tabCount > 0) { |
| 2361 | int columns = 1; |
| 2362 | int y = 0; |
| 2363 | int fontHeight = metrics.getHeight(); |
| 2364 | |
| 2365 | maxTabWidth = calculateMaxTabWidth(tabPlacement); |
| 2366 | |
| 2367 | for (int i = 0; i < tabCount; i++) { |
| 2368 | int tabHeight = calculateTabHeight(tabPlacement, i, fontHeight); |
| 2369 | |
| 2370 | if (y != 0 && y + tabHeight > height) { |
| 2371 | columns++; |
| 2372 | y = 0; |
| 2373 | } |
| 2374 | y += tabHeight; |
| 2375 | } |
| 2376 | total = calculateTabAreaWidth(tabPlacement, columns, maxTabWidth); |
| 2377 | } |
| 2378 | return total; |
| 2379 | } |
| 2380 | |
| 2381 | public void layoutContainer(Container parent) { |
| 2382 | /* Some of the code in this method deals with changing the |
| 2383 | * visibility of components to hide and show the contents for the |
| 2384 | * selected tab. This is older code that has since been duplicated |
| 2385 | * in JTabbedPane.fireStateChanged(), so as to allow visibility |
| 2386 | * changes to happen sooner (see the note there). This code remains |
| 2387 | * for backward compatibility as there are some cases, such as |
| 2388 | * subclasses that don't fireStateChanged() where it may be used. |
| 2389 | * Any changes here need to be kept in synch with |
| 2390 | * JTabbedPane.fireStateChanged(). |
| 2391 | */ |
| 2392 | |
| 2393 | setRolloverTab(-1); |
| 2394 | |
| 2395 | int tabPlacement = tabPane.getTabPlacement(); |
| 2396 | Insets insets = tabPane.getInsets(); |
| 2397 | int selectedIndex = tabPane.getSelectedIndex(); |
| 2398 | Component visibleComponent = getVisibleComponent(); |
| 2399 | |
| 2400 | calculateLayoutInfo(); |
| 2401 | |
| 2402 | Component selectedComponent = null; |
| 2403 | if (selectedIndex < 0) { |
| 2404 | if (visibleComponent != null) { |
| 2405 | // The last tab was removed, so remove the component |
| 2406 | setVisibleComponent(null); |
| 2407 | } |
| 2408 | } else { |
| 2409 | selectedComponent = tabPane.getComponentAt(selectedIndex); |
| 2410 | } |
| 2411 | int cx, cy, cw, ch; |
| 2412 | int totalTabWidth = 0; |
| 2413 | int totalTabHeight = 0; |
| 2414 | Insets contentInsets = getContentBorderInsets(tabPlacement); |
| 2415 | |
| 2416 | boolean shouldChangeFocus = false; |
| 2417 | |
| 2418 | // In order to allow programs to use a single component |
| 2419 | // as the display for multiple tabs, we will not change |
| 2420 | // the visible compnent if the currently selected tab |
| 2421 | // has a null component. This is a bit dicey, as we don't |
| 2422 | // explicitly state we support this in the spec, but since |
| 2423 | // programs are now depending on this, we're making it work. |
| 2424 | // |
| 2425 | if(selectedComponent != null) { |
| 2426 | if(selectedComponent != visibleComponent && |
| 2427 | visibleComponent != null) { |
| 2428 | if(SwingUtilities.findFocusOwner(visibleComponent) != null) { |
| 2429 | shouldChangeFocus = true; |
| 2430 | } |
| 2431 | } |
| 2432 | setVisibleComponent(selectedComponent); |
| 2433 | } |
| 2434 | |
| 2435 | Rectangle bounds = tabPane.getBounds(); |
| 2436 | int numChildren = tabPane.getComponentCount(); |
| 2437 | |
| 2438 | if(numChildren > 0) { |
| 2439 | |
| 2440 | switch(tabPlacement) { |
| 2441 | case LEFT: |
| 2442 | totalTabWidth = calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); |
| 2443 | cx = insets.left + totalTabWidth + contentInsets.left; |
| 2444 | cy = insets.top + contentInsets.top; |
| 2445 | break; |
| 2446 | case RIGHT: |
| 2447 | totalTabWidth = calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); |
| 2448 | cx = insets.left + contentInsets.left; |
| 2449 | cy = insets.top + contentInsets.top; |
| 2450 | break; |
| 2451 | case BOTTOM: |
| 2452 | totalTabHeight = calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); |
| 2453 | cx = insets.left + contentInsets.left; |
| 2454 | cy = insets.top + contentInsets.top; |
| 2455 | break; |
| 2456 | case TOP: |
| 2457 | default: |
| 2458 | totalTabHeight = calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); |
| 2459 | cx = insets.left + contentInsets.left; |
| 2460 | cy = insets.top + totalTabHeight + contentInsets.top; |
| 2461 | } |
| 2462 | |
| 2463 | cw = bounds.width - totalTabWidth - |
| 2464 | insets.left - insets.right - |
| 2465 | contentInsets.left - contentInsets.right; |
| 2466 | ch = bounds.height - totalTabHeight - |
| 2467 | insets.top - insets.bottom - |
| 2468 | contentInsets.top - contentInsets.bottom; |
| 2469 | |
| 2470 | for(int i = 0; i < numChildren; i++) { |
| 2471 | Component child = tabPane.getComponent(i); |
| 2472 | if(child == tabContainer) { |
| 2473 | |
| 2474 | int tabContainerWidth = totalTabWidth == 0 ? bounds.width : |
| 2475 | totalTabWidth + insets.left + insets.right + |
| 2476 | contentInsets.left + contentInsets.right; |
| 2477 | int tabContainerHeight = totalTabHeight == 0 ? bounds.height : |
| 2478 | totalTabHeight + insets.top + insets.bottom + |
| 2479 | contentInsets.top + contentInsets.bottom; |
| 2480 | |
| 2481 | int tabContainerX = 0; |
| 2482 | int tabContainerY = 0; |
| 2483 | if(tabPlacement == BOTTOM) { |
| 2484 | tabContainerY = bounds.height - tabContainerHeight; |
| 2485 | } else if(tabPlacement == RIGHT) { |
| 2486 | tabContainerX = bounds.width - tabContainerWidth; |
| 2487 | } |
| 2488 | child.setBounds(tabContainerX, tabContainerY, tabContainerWidth, tabContainerHeight); |
| 2489 | } else { |
| 2490 | child.setBounds(cx, cy, cw, ch); |
| 2491 | } |
| 2492 | } |
| 2493 | } |
| 2494 | layoutTabComponents(); |
| 2495 | if(shouldChangeFocus) { |
| 2496 | if(!requestFocusForVisibleComponent()) { |
| 2497 | tabPane.requestFocus(); |
| 2498 | } |
| 2499 | } |
| 2500 | } |
| 2501 | |
| 2502 | public void calculateLayoutInfo() { |
| 2503 | int tabCount = tabPane.getTabCount(); |
| 2504 | assureRectsCreated(tabCount); |
| 2505 | calculateTabRects(tabPane.getTabPlacement(), tabCount); |
| 2506 | isRunsDirty = false; |
| 2507 | } |
| 2508 | |
| 2509 | private void layoutTabComponents() { |
| 2510 | if (tabContainer == null) { |
| 2511 | return; |
| 2512 | } |
| 2513 | Rectangle rect = new Rectangle(); |
| 2514 | Point delta = new Point(-tabContainer.getX(), -tabContainer.getY()); |
| 2515 | if (scrollableTabLayoutEnabled()) { |
| 2516 | translatePointToTabPanel(0, 0, delta); |
| 2517 | } |
| 2518 | for (int i = 0; i < tabPane.getTabCount(); i++) { |
| 2519 | Component c = tabPane.getTabComponentAt(i); |
| 2520 | if (c == null) { |
| 2521 | continue; |
| 2522 | } |
| 2523 | getTabBounds(i, rect); |
| 2524 | Dimension preferredSize = c.getPreferredSize(); |
| 2525 | Insets insets = getTabInsets(tabPane.getTabPlacement(), i); |
| 2526 | int outerX = rect.x + insets.left + delta.x; |
| 2527 | int outerY = rect.y + insets.top + delta.y; |
| 2528 | int outerWidth = rect.width - insets.left - insets.right; |
| 2529 | int outerHeight = rect.height - insets.top - insets.bottom; |
| 2530 | //centralize component |
| 2531 | int x = outerX + (outerWidth - preferredSize.width) / 2; |
| 2532 | int y = outerY + (outerHeight - preferredSize.height) / 2; |
| 2533 | int tabPlacement = tabPane.getTabPlacement(); |
| 2534 | boolean isSeleceted = i == tabPane.getSelectedIndex(); |
| 2535 | c.setBounds(x + getTabLabelShiftX(tabPlacement, i, isSeleceted), |
| 2536 | y + getTabLabelShiftY(tabPlacement, i, isSeleceted), |
| 2537 | preferredSize.width, preferredSize.height); |
| 2538 | } |
| 2539 | } |
| 2540 | |
| 2541 | protected void calculateTabRects(int tabPlacement, int tabCount) { |
| 2542 | FontMetrics metrics = getFontMetrics(); |
| 2543 | Dimension size = tabPane.getSize(); |
| 2544 | Insets insets = tabPane.getInsets(); |
| 2545 | Insets tabAreaInsets = getTabAreaInsets(tabPlacement); |
| 2546 | int fontHeight = metrics.getHeight(); |
| 2547 | int selectedIndex = tabPane.getSelectedIndex(); |
| 2548 | int tabRunOverlay; |
| 2549 | int i, j; |
| 2550 | int x, y; |
| 2551 | int returnAt; |
| 2552 | boolean verticalTabRuns = (tabPlacement == LEFT || tabPlacement == RIGHT); |
| 2553 | boolean leftToRight = BasicGraphicsUtils.isLeftToRight(tabPane); |
| 2554 | |
| 2555 | // |
| 2556 | // Calculate bounds within which a tab run must fit |
| 2557 | // |
| 2558 | switch(tabPlacement) { |
| 2559 | case LEFT: |
| 2560 | maxTabWidth = calculateMaxTabWidth(tabPlacement); |
| 2561 | x = insets.left + tabAreaInsets.left; |
| 2562 | y = insets.top + tabAreaInsets.top; |
| 2563 | returnAt = size.height - (insets.bottom + tabAreaInsets.bottom); |
| 2564 | break; |
| 2565 | case RIGHT: |
| 2566 | maxTabWidth = calculateMaxTabWidth(tabPlacement); |
| 2567 | x = size.width - insets.right - tabAreaInsets.right - maxTabWidth; |
| 2568 | y = insets.top + tabAreaInsets.top; |
| 2569 | returnAt = size.height - (insets.bottom + tabAreaInsets.bottom); |
| 2570 | break; |
| 2571 | case BOTTOM: |
| 2572 | maxTabHeight = calculateMaxTabHeight(tabPlacement); |
| 2573 | x = insets.left + tabAreaInsets.left; |
| 2574 | y = size.height - insets.bottom - tabAreaInsets.bottom - maxTabHeight; |
| 2575 | returnAt = size.width - (insets.right + tabAreaInsets.right); |
| 2576 | break; |
| 2577 | case TOP: |
| 2578 | default: |
| 2579 | maxTabHeight = calculateMaxTabHeight(tabPlacement); |
| 2580 | x = insets.left + tabAreaInsets.left; |
| 2581 | y = insets.top + tabAreaInsets.top; |
| 2582 | returnAt = size.width - (insets.right + tabAreaInsets.right); |
| 2583 | break; |
| 2584 | } |
| 2585 | |
| 2586 | tabRunOverlay = getTabRunOverlay(tabPlacement); |
| 2587 | |
| 2588 | runCount = 0; |
| 2589 | selectedRun = -1; |
| 2590 | |
| 2591 | if (tabCount == 0) { |
| 2592 | return; |
| 2593 | } |
| 2594 | |
| 2595 | // Run through tabs and partition them into runs |
| 2596 | Rectangle rect; |
| 2597 | for (i = 0; i < tabCount; i++) { |
| 2598 | rect = rects[i]; |
| 2599 | |
| 2600 | if (!verticalTabRuns) { |
| 2601 | // Tabs on TOP or BOTTOM.... |
| 2602 | if (i > 0) { |
| 2603 | rect.x = rects[i-1].x + rects[i-1].width; |
| 2604 | } else { |
| 2605 | tabRuns[0] = 0; |
| 2606 | runCount = 1; |
| 2607 | maxTabWidth = 0; |
| 2608 | rect.x = x; |
| 2609 | } |
| 2610 | rect.width = calculateTabWidth(tabPlacement, i, metrics); |
| 2611 | maxTabWidth = Math.max(maxTabWidth, rect.width); |
| 2612 | |
| 2613 | // Never move a TAB down a run if it is in the first column. |
| 2614 | // Even if there isn't enough room, moving it to a fresh |
| 2615 | // line won't help. |
| 2616 | if (rect.x != 2 + insets.left && rect.x + rect.width > returnAt) { |
| 2617 | if (runCount > tabRuns.length - 1) { |
| 2618 | expandTabRunsArray(); |
| 2619 | } |
| 2620 | tabRuns[runCount] = i; |
| 2621 | runCount++; |
| 2622 | rect.x = x; |
| 2623 | } |
| 2624 | // Initialize y position in case there's just one run |
| 2625 | rect.y = y; |
| 2626 | rect.height = maxTabHeight/* - 2*/; |
| 2627 | |
| 2628 | } else { |
| 2629 | // Tabs on LEFT or RIGHT... |
| 2630 | if (i > 0) { |
| 2631 | rect.y = rects[i-1].y + rects[i-1].height; |
| 2632 | } else { |
| 2633 | tabRuns[0] = 0; |
| 2634 | runCount = 1; |
| 2635 | maxTabHeight = 0; |
| 2636 | rect.y = y; |
| 2637 | } |
| 2638 | rect.height = calculateTabHeight(tabPlacement, i, fontHeight); |
| 2639 | maxTabHeight = Math.max(maxTabHeight, rect.height); |
| 2640 | |
| 2641 | // Never move a TAB over a run if it is in the first run. |
| 2642 | // Even if there isn't enough room, moving it to a fresh |
| 2643 | // column won't help. |
| 2644 | if (rect.y != 2 + insets.top && rect.y + rect.height > returnAt) { |
| 2645 | if (runCount > tabRuns.length - 1) { |
| 2646 | expandTabRunsArray(); |
| 2647 | } |
| 2648 | tabRuns[runCount] = i; |
| 2649 | runCount++; |
| 2650 | rect.y = y; |
| 2651 | } |
| 2652 | // Initialize x position in case there's just one column |
| 2653 | rect.x = x; |
| 2654 | rect.width = maxTabWidth/* - 2*/; |
| 2655 | |
| 2656 | } |
| 2657 | if (i == selectedIndex) { |
| 2658 | selectedRun = runCount - 1; |
| 2659 | } |
| 2660 | } |
| 2661 | |
| 2662 | if (runCount > 1) { |
| 2663 | // Re-distribute tabs in case last run has leftover space |
| 2664 | normalizeTabRuns(tabPlacement, tabCount, verticalTabRuns? y : x, returnAt); |
| 2665 | |
| 2666 | selectedRun = getRunForTab(tabCount, selectedIndex); |
| 2667 | |
| 2668 | // Rotate run array so that selected run is first |
| 2669 | if (shouldRotateTabRuns(tabPlacement)) { |
| 2670 | rotateTabRuns(tabPlacement, selectedRun); |
| 2671 | } |
| 2672 | } |
| 2673 | |
| 2674 | // Step through runs from back to front to calculate |
| 2675 | // tab y locations and to pad runs appropriately |
| 2676 | for (i = runCount - 1; i >= 0; i--) { |
| 2677 | int start = tabRuns[i]; |
| 2678 | int next = tabRuns[i == (runCount - 1)? 0 : i + 1]; |
| 2679 | int end = (next != 0? next - 1 : tabCount - 1); |
| 2680 | if (!verticalTabRuns) { |
| 2681 | for (j = start; j <= end; j++) { |
| 2682 | rect = rects[j]; |
| 2683 | rect.y = y; |
| 2684 | rect.x += getTabRunIndent(tabPlacement, i); |
| 2685 | } |
| 2686 | if (shouldPadTabRun(tabPlacement, i)) { |
| 2687 | padTabRun(tabPlacement, start, end, returnAt); |
| 2688 | } |
| 2689 | if (tabPlacement == BOTTOM) { |
| 2690 | y -= (maxTabHeight - tabRunOverlay); |
| 2691 | } else { |
| 2692 | y += (maxTabHeight - tabRunOverlay); |
| 2693 | } |
| 2694 | } else { |
| 2695 | for (j = start; j <= end; j++) { |
| 2696 | rect = rects[j]; |
| 2697 | rect.x = x; |
| 2698 | rect.y += getTabRunIndent(tabPlacement, i); |
| 2699 | } |
| 2700 | if (shouldPadTabRun(tabPlacement, i)) { |
| 2701 | padTabRun(tabPlacement, start, end, returnAt); |
| 2702 | } |
| 2703 | if (tabPlacement == RIGHT) { |
| 2704 | x -= (maxTabWidth - tabRunOverlay); |
| 2705 | } else { |
| 2706 | x += (maxTabWidth - tabRunOverlay); |
| 2707 | } |
| 2708 | } |
| 2709 | } |
| 2710 | |
| 2711 | // Pad the selected tab so that it appears raised in front |
| 2712 | padSelectedTab(tabPlacement, selectedIndex); |
| 2713 | |
| 2714 | // if right to left and tab placement on the top or |
| 2715 | // the bottom, flip x positions and adjust by widths |
| 2716 | if (!leftToRight && !verticalTabRuns) { |
| 2717 | int rightMargin = size.width |
| 2718 | - (insets.right + tabAreaInsets.right); |
| 2719 | for (i = 0; i < tabCount; i++) { |
| 2720 | rects[i].x = rightMargin - rects[i].x - rects[i].width; |
| 2721 | } |
| 2722 | } |
| 2723 | } |
| 2724 | |
| 2725 | |
| 2726 | /* |
| 2727 | * Rotates the run-index array so that the selected run is run[0] |
| 2728 | */ |
| 2729 | protected void rotateTabRuns(int tabPlacement, int selectedRun) { |
| 2730 | for (int i = 0; i < selectedRun; i++) { |
| 2731 | int save = tabRuns[0]; |
| 2732 | for (int j = 1; j < runCount; j++) { |
| 2733 | tabRuns[j - 1] = tabRuns[j]; |
| 2734 | } |
| 2735 | tabRuns[runCount-1] = save; |
| 2736 | } |
| 2737 | } |
| 2738 | |
| 2739 | protected void normalizeTabRuns(int tabPlacement, int tabCount, |
| 2740 | int start, int max) { |
| 2741 | boolean verticalTabRuns = (tabPlacement == LEFT || tabPlacement == RIGHT); |
| 2742 | int run = runCount - 1; |
| 2743 | boolean keepAdjusting = true; |
| 2744 | double weight = 1.25; |
| 2745 | |
| 2746 | // At this point the tab runs are packed to fit as many |
| 2747 | // tabs as possible, which can leave the last run with a lot |
| 2748 | // of extra space (resulting in very fat tabs on the last run). |
| 2749 | // So we'll attempt to distribute this extra space more evenly |
| 2750 | // across the runs in order to make the runs look more consistent. |
| 2751 | // |
| 2752 | // Starting with the last run, determine whether the last tab in |
| 2753 | // the previous run would fit (generously) in this run; if so, |
| 2754 | // move tab to current run and shift tabs accordingly. Cycle |
| 2755 | // through remaining runs using the same algorithm. |
| 2756 | // |
| 2757 | while (keepAdjusting) { |
| 2758 | int last = lastTabInRun(tabCount, run); |
| 2759 | int prevLast = lastTabInRun(tabCount, run-1); |
| 2760 | int end; |
| 2761 | int prevLastLen; |
| 2762 | |
| 2763 | if (!verticalTabRuns) { |
| 2764 | end = rects[last].x + rects[last].width; |
| 2765 | prevLastLen = (int)(maxTabWidth*weight); |
| 2766 | } else { |
| 2767 | end = rects[last].y + rects[last].height; |
| 2768 | prevLastLen = (int)(maxTabHeight*weight*2); |
| 2769 | } |
| 2770 | |
| 2771 | // Check if the run has enough extra space to fit the last tab |
| 2772 | // from the previous row... |
| 2773 | if (max - end > prevLastLen) { |
| 2774 | |
| 2775 | // Insert tab from previous row and shift rest over |
| 2776 | tabRuns[run] = prevLast; |
| 2777 | if (!verticalTabRuns) { |
| 2778 | rects[prevLast].x = start; |
| 2779 | } else { |
| 2780 | rects[prevLast].y = start; |
| 2781 | } |
| 2782 | for (int i = prevLast+1; i <= last; i++) { |
| 2783 | if (!verticalTabRuns) { |
| 2784 | rects[i].x = rects[i-1].x + rects[i-1].width; |
| 2785 | } else { |
| 2786 | rects[i].y = rects[i-1].y + rects[i-1].height; |
| 2787 | } |
| 2788 | } |
| 2789 | |
| 2790 | } else if (run == runCount - 1) { |
| 2791 | // no more room left in last run, so we're done! |
| 2792 | keepAdjusting = false; |
| 2793 | } |
| 2794 | if (run - 1 > 0) { |
| 2795 | // check previous run next... |
| 2796 | run -= 1; |
| 2797 | } else { |
| 2798 | // check last run again...but require a higher ratio |
| 2799 | // of extraspace-to-tabsize because we don't want to |
| 2800 | // end up with too many tabs on the last run! |
| 2801 | run = runCount - 1; |
| 2802 | weight += .25; |
| 2803 | } |
| 2804 | } |
| 2805 | } |
| 2806 | |
| 2807 | protected void padTabRun(int tabPlacement, int start, int end, int max) { |
| 2808 | Rectangle lastRect = rects[end]; |
| 2809 | if (tabPlacement == TOP || tabPlacement == BOTTOM) { |
| 2810 | int runWidth = (lastRect.x + lastRect.width) - rects[start].x; |
| 2811 | int deltaWidth = max - (lastRect.x + lastRect.width); |
| 2812 | float factor = (float)deltaWidth / (float)runWidth; |
| 2813 | |
| 2814 | for (int j = start; j <= end; j++) { |
| 2815 | Rectangle pastRect = rects[j]; |
| 2816 | if (j > start) { |
| 2817 | pastRect.x = rects[j-1].x + rects[j-1].width; |
| 2818 | } |
| 2819 | pastRect.width += Math.round((float)pastRect.width * factor); |
| 2820 | } |
| 2821 | lastRect.width = max - lastRect.x; |
| 2822 | } else { |
| 2823 | int runHeight = (lastRect.y + lastRect.height) - rects[start].y; |
| 2824 | int deltaHeight = max - (lastRect.y + lastRect.height); |
| 2825 | float factor = (float)deltaHeight / (float)runHeight; |
| 2826 | |
| 2827 | for (int j = start; j <= end; j++) { |
| 2828 | Rectangle pastRect = rects[j]; |
| 2829 | if (j > start) { |
| 2830 | pastRect.y = rects[j-1].y + rects[j-1].height; |
| 2831 | } |
| 2832 | pastRect.height += Math.round((float)pastRect.height * factor); |
| 2833 | } |
| 2834 | lastRect.height = max - lastRect.y; |
| 2835 | } |
| 2836 | } |
| 2837 | |
| 2838 | protected void padSelectedTab(int tabPlacement, int selectedIndex) { |
| 2839 | |
| 2840 | if (selectedIndex >= 0) { |
| 2841 | Rectangle selRect = rects[selectedIndex]; |
| 2842 | Insets padInsets = getSelectedTabPadInsets(tabPlacement); |
| 2843 | selRect.x -= padInsets.left; |
| 2844 | selRect.width += (padInsets.left + padInsets.right); |
| 2845 | selRect.y -= padInsets.top; |
| 2846 | selRect.height += (padInsets.top + padInsets.bottom); |
| 2847 | |
| 2848 | if (!scrollableTabLayoutEnabled()) { // WRAP_TAB_LAYOUT |
| 2849 | // do not expand selected tab more then necessary |
| 2850 | Dimension size = tabPane.getSize(); |
| 2851 | Insets insets = tabPane.getInsets(); |
| 2852 | |
| 2853 | if ((tabPlacement == LEFT) || (tabPlacement == RIGHT)) { |
| 2854 | int top = insets.top - selRect.y; |
| 2855 | if (top > 0) { |
| 2856 | selRect.y += top; |
| 2857 | selRect.height -= top; |
| 2858 | } |
| 2859 | int bottom = (selRect.y + selRect.height) + insets.bottom - size.height; |
| 2860 | if (bottom > 0) { |
| 2861 | selRect.height -= bottom; |
| 2862 | } |
| 2863 | } else { |
| 2864 | int left = insets.left - selRect.x; |
| 2865 | if (left > 0) { |
| 2866 | selRect.x += left; |
| 2867 | selRect.width -= left; |
| 2868 | } |
| 2869 | int right = (selRect.x + selRect.width) + insets.right - size.width; |
| 2870 | if (right > 0) { |
| 2871 | selRect.width -= right; |
| 2872 | } |
| 2873 | } |
| 2874 | } |
| 2875 | } |
| 2876 | } |
| 2877 | } |
| 2878 | |
| 2879 | private class TabbedPaneScrollLayout extends TabbedPaneLayout { |
| 2880 | |
| 2881 | protected int preferredTabAreaHeight(int tabPlacement, int width) { |
| 2882 | return calculateMaxTabHeight(tabPlacement); |
| 2883 | } |
| 2884 | |
| 2885 | protected int preferredTabAreaWidth(int tabPlacement, int height) { |
| 2886 | return calculateMaxTabWidth(tabPlacement); |
| 2887 | } |
| 2888 | |
| 2889 | public void layoutContainer(Container parent) { |
| 2890 | /* Some of the code in this method deals with changing the |
| 2891 | * visibility of components to hide and show the contents for the |
| 2892 | * selected tab. This is older code that has since been duplicated |
| 2893 | * in JTabbedPane.fireStateChanged(), so as to allow visibility |
| 2894 | * changes to happen sooner (see the note there). This code remains |
| 2895 | * for backward compatibility as there are some cases, such as |
| 2896 | * subclasses that don't fireStateChanged() where it may be used. |
| 2897 | * Any changes here need to be kept in synch with |
| 2898 | * JTabbedPane.fireStateChanged(). |
| 2899 | */ |
| 2900 | |
| 2901 | setRolloverTab(-1); |
| 2902 | |
| 2903 | int tabPlacement = tabPane.getTabPlacement(); |
| 2904 | int tabCount = tabPane.getTabCount(); |
| 2905 | Insets insets = tabPane.getInsets(); |
| 2906 | int selectedIndex = tabPane.getSelectedIndex(); |
| 2907 | Component visibleComponent = getVisibleComponent(); |
| 2908 | |
| 2909 | calculateLayoutInfo(); |
| 2910 | |
| 2911 | Component selectedComponent = null; |
| 2912 | if (selectedIndex < 0) { |
| 2913 | if (visibleComponent != null) { |
| 2914 | // The last tab was removed, so remove the component |
| 2915 | setVisibleComponent(null); |
| 2916 | } |
| 2917 | } else { |
| 2918 | selectedComponent = tabPane.getComponentAt(selectedIndex); |
| 2919 | } |
| 2920 | |
| 2921 | if (tabPane.getTabCount() == 0) { |
| 2922 | tabScroller.croppedEdge.resetParams(); |
| 2923 | tabScroller.scrollForwardButton.setVisible(false); |
| 2924 | tabScroller.scrollBackwardButton.setVisible(false); |
| 2925 | return; |
| 2926 | } |
| 2927 | |
| 2928 | boolean shouldChangeFocus = false; |
| 2929 | |
| 2930 | // In order to allow programs to use a single component |
| 2931 | // as the display for multiple tabs, we will not change |
| 2932 | // the visible compnent if the currently selected tab |
| 2933 | // has a null component. This is a bit dicey, as we don't |
| 2934 | // explicitly state we support this in the spec, but since |
| 2935 | // programs are now depending on this, we're making it work. |
| 2936 | // |
| 2937 | if(selectedComponent != null) { |
| 2938 | if(selectedComponent != visibleComponent && |
| 2939 | visibleComponent != null) { |
| 2940 | if(SwingUtilities.findFocusOwner(visibleComponent) != null) { |
| 2941 | shouldChangeFocus = true; |
| 2942 | } |
| 2943 | } |
| 2944 | setVisibleComponent(selectedComponent); |
| 2945 | } |
| 2946 | int tx, ty, tw, th; // tab area bounds |
| 2947 | int cx, cy, cw, ch; // content area bounds |
| 2948 | Insets contentInsets = getContentBorderInsets(tabPlacement); |
| 2949 | Rectangle bounds = tabPane.getBounds(); |
| 2950 | int numChildren = tabPane.getComponentCount(); |
| 2951 | |
| 2952 | if(numChildren > 0) { |
| 2953 | switch(tabPlacement) { |
| 2954 | case LEFT: |
| 2955 | // calculate tab area bounds |
| 2956 | tw = calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); |
| 2957 | th = bounds.height - insets.top - insets.bottom; |
| 2958 | tx = insets.left; |
| 2959 | ty = insets.top; |
| 2960 | |
| 2961 | // calculate content area bounds |
| 2962 | cx = tx + tw + contentInsets.left; |
| 2963 | cy = ty + contentInsets.top; |
| 2964 | cw = bounds.width - insets.left - insets.right - tw - |
| 2965 | contentInsets.left - contentInsets.right; |
| 2966 | ch = bounds.height - insets.top - insets.bottom - |
| 2967 | contentInsets.top - contentInsets.bottom; |
| 2968 | break; |
| 2969 | case RIGHT: |
| 2970 | // calculate tab area bounds |
| 2971 | tw = calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); |
| 2972 | th = bounds.height - insets.top - insets.bottom; |
| 2973 | tx = bounds.width - insets.right - tw; |
| 2974 | ty = insets.top; |
| 2975 | |
| 2976 | // calculate content area bounds |
| 2977 | cx = insets.left + contentInsets.left; |
| 2978 | cy = insets.top + contentInsets.top; |
| 2979 | cw = bounds.width - insets.left - insets.right - tw - |
| 2980 | contentInsets.left - contentInsets.right; |
| 2981 | ch = bounds.height - insets.top - insets.bottom - |
| 2982 | contentInsets.top - contentInsets.bottom; |
| 2983 | break; |
| 2984 | case BOTTOM: |
| 2985 | // calculate tab area bounds |
| 2986 | tw = bounds.width - insets.left - insets.right; |
| 2987 | th = calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); |
| 2988 | tx = insets.left; |
| 2989 | ty = bounds.height - insets.bottom - th; |
| 2990 | |
| 2991 | // calculate content area bounds |
| 2992 | cx = insets.left + contentInsets.left; |
| 2993 | cy = insets.top + contentInsets.top; |
| 2994 | cw = bounds.width - insets.left - insets.right - |
| 2995 | contentInsets.left - contentInsets.right; |
| 2996 | ch = bounds.height - insets.top - insets.bottom - th - |
| 2997 | contentInsets.top - contentInsets.bottom; |
| 2998 | break; |
| 2999 | case TOP: |
| 3000 | default: |
| 3001 | // calculate tab area bounds |
| 3002 | tw = bounds.width - insets.left - insets.right; |
| 3003 | th = calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); |
| 3004 | tx = insets.left; |
| 3005 | ty = insets.top; |
| 3006 | |
| 3007 | // calculate content area bounds |
| 3008 | cx = tx + contentInsets.left; |
| 3009 | cy = ty + th + contentInsets.top; |
| 3010 | cw = bounds.width - insets.left - insets.right - |
| 3011 | contentInsets.left - contentInsets.right; |
| 3012 | ch = bounds.height - insets.top - insets.bottom - th - |
| 3013 | contentInsets.top - contentInsets.bottom; |
| 3014 | } |
| 3015 | |
| 3016 | for(int i = 0; i < numChildren; i++) { |
| 3017 | Component child = tabPane.getComponent(i); |
| 3018 | |
| 3019 | if(tabScroller != null && child == tabScroller.viewport) { |
| 3020 | JViewport viewport = (JViewport) child; |
| 3021 | Rectangle viewRect = viewport.getViewRect(); |
| 3022 | int vw = tw; |
| 3023 | int vh = th; |
| 3024 | Dimension butSize = tabScroller.scrollForwardButton.getPreferredSize(); |
| 3025 | switch(tabPlacement) { |
| 3026 | case LEFT: |
| 3027 | case RIGHT: |
| 3028 | int totalTabHeight = rects[tabCount - 1].y + rects[tabCount - 1].height; |
| 3029 | if(totalTabHeight > th) { |
| 3030 | // Allow space for scrollbuttons |
| 3031 | vh = (th > 2 * butSize.height) ? th - 2 * butSize.height : 0; |
| 3032 | if(totalTabHeight - viewRect.y <= vh) { |
| 3033 | // Scrolled to the end, so ensure the viewport size is |
| 3034 | // such that the scroll offset aligns with a tab |
| 3035 | vh = totalTabHeight - viewRect.y; |
| 3036 | } |
| 3037 | } |
| 3038 | break; |
| 3039 | case BOTTOM: |
| 3040 | case TOP: |
| 3041 | default: |
| 3042 | int totalTabWidth = rects[tabCount - 1].x + rects[tabCount - 1].width; |
| 3043 | if(totalTabWidth > tw) { |
| 3044 | // Need to allow space for scrollbuttons |
| 3045 | vw = (tw > 2 * butSize.width) ? tw - 2 * butSize.width : 0; |
| 3046 | if(totalTabWidth - viewRect.x <= vw) { |
| 3047 | // Scrolled to the end, so ensure the viewport size is |
| 3048 | // such that the scroll offset aligns with a tab |
| 3049 | vw = totalTabWidth - viewRect.x; |
| 3050 | } |
| 3051 | } |
| 3052 | } |
| 3053 | child.setBounds(tx, ty, vw, vh); |
| 3054 | |
| 3055 | } else if(tabScroller != null && |
| 3056 | (child == tabScroller.scrollForwardButton || |
| 3057 | child == tabScroller.scrollBackwardButton)) { |
| 3058 | Component scrollbutton = child; |
| 3059 | Dimension bsize = scrollbutton.getPreferredSize(); |
| 3060 | int bx = 0; |
| 3061 | int by = 0; |
| 3062 | int bw = bsize.width; |
| 3063 | int bh = bsize.height; |
| 3064 | boolean visible = false; |
| 3065 | |
| 3066 | switch(tabPlacement) { |
| 3067 | case LEFT: |
| 3068 | case RIGHT: |
| 3069 | int totalTabHeight = rects[tabCount - 1].y + rects[tabCount - 1].height; |
| 3070 | if(totalTabHeight > th) { |
| 3071 | visible = true; |
| 3072 | bx = (tabPlacement == LEFT ? tx + tw - bsize.width : tx); |
| 3073 | by = (child == tabScroller.scrollForwardButton) ? |
| 3074 | bounds.height - insets.bottom - bsize.height : |
| 3075 | bounds.height - insets.bottom - 2 * bsize.height; |
| 3076 | } |
| 3077 | break; |
| 3078 | |
| 3079 | case BOTTOM: |
| 3080 | case TOP: |
| 3081 | default: |
| 3082 | int totalTabWidth = rects[tabCount - 1].x + rects[tabCount - 1].width; |
| 3083 | |
| 3084 | if(totalTabWidth > tw) { |
| 3085 | visible = true; |
| 3086 | bx = (child == tabScroller.scrollForwardButton) ? |
| 3087 | bounds.width - insets.left - bsize.width : |
| 3088 | bounds.width - insets.left - 2 * bsize.width; |
| 3089 | by = (tabPlacement == TOP ? ty + th - bsize.height : ty); |
| 3090 | } |
| 3091 | } |
| 3092 | child.setVisible(visible); |
| 3093 | if(visible) { |
| 3094 | child.setBounds(bx, by, bw, bh); |
| 3095 | } |
| 3096 | |
| 3097 | } else { |
| 3098 | // All content children... |
| 3099 | child.setBounds(cx, cy, cw, ch); |
| 3100 | } |
| 3101 | } |
| 3102 | super.layoutTabComponents(); |
| 3103 | layoutCroppedEdge(); |
| 3104 | if(shouldChangeFocus) { |
| 3105 | if(!requestFocusForVisibleComponent()) { |
| 3106 | tabPane.requestFocus(); |
| 3107 | } |
| 3108 | } |
| 3109 | } |
| 3110 | } |
| 3111 | |
| 3112 | private void layoutCroppedEdge() { |
| 3113 | tabScroller.croppedEdge.resetParams(); |
| 3114 | Rectangle viewRect = tabScroller.viewport.getViewRect(); |
| 3115 | int cropline; |
| 3116 | for (int i = 0; i < rects.length; i++) { |
| 3117 | Rectangle tabRect = rects[i]; |
| 3118 | switch (tabPane.getTabPlacement()) { |
| 3119 | case LEFT: |
| 3120 | case RIGHT: |
| 3121 | cropline = viewRect.y + viewRect.height; |
| 3122 | if ((tabRect.y < cropline) && (tabRect.y + tabRect.height > cropline)) { |
| 3123 | tabScroller.croppedEdge.setParams(i, cropline - tabRect.y - 1, |
| 3124 | -currentTabAreaInsets.left, 0); |
| 3125 | } |
| 3126 | break; |
| 3127 | case TOP: |
| 3128 | case BOTTOM: |
| 3129 | default: |
| 3130 | cropline = viewRect.x + viewRect.width; |
| 3131 | if ((tabRect.x < cropline - 1) && (tabRect.x + tabRect.width > cropline)) { |
| 3132 | tabScroller.croppedEdge.setParams(i, cropline - tabRect.x - 1, |
| 3133 | 0, -currentTabAreaInsets.top); |
| 3134 | } |
| 3135 | } |
| 3136 | } |
| 3137 | } |
| 3138 | |
| 3139 | protected void calculateTabRects(int tabPlacement, int tabCount) { |
| 3140 | FontMetrics metrics = getFontMetrics(); |
| 3141 | Dimension size = tabPane.getSize(); |
| 3142 | Insets insets = tabPane.getInsets(); |
| 3143 | Insets tabAreaInsets = getTabAreaInsets(tabPlacement); |
| 3144 | int fontHeight = metrics.getHeight(); |
| 3145 | int selectedIndex = tabPane.getSelectedIndex(); |
| 3146 | int i, j; |
| 3147 | boolean verticalTabRuns = (tabPlacement == LEFT || tabPlacement == RIGHT); |
| 3148 | boolean leftToRight = BasicGraphicsUtils.isLeftToRight(tabPane); |
| 3149 | int x = tabAreaInsets.left; |
| 3150 | int y = tabAreaInsets.top; |
| 3151 | int totalWidth = 0; |
| 3152 | int totalHeight = 0; |
| 3153 | |
| 3154 | // |
| 3155 | // Calculate bounds within which a tab run must fit |
| 3156 | // |
| 3157 | switch(tabPlacement) { |
| 3158 | case LEFT: |
| 3159 | case RIGHT: |
| 3160 | maxTabWidth = calculateMaxTabWidth(tabPlacement); |
| 3161 | break; |
| 3162 | case BOTTOM: |
| 3163 | case TOP: |
| 3164 | default: |
| 3165 | maxTabHeight = calculateMaxTabHeight(tabPlacement); |
| 3166 | } |
| 3167 | |
| 3168 | runCount = 0; |
| 3169 | selectedRun = -1; |
| 3170 | |
| 3171 | if (tabCount == 0) { |
| 3172 | return; |
| 3173 | } |
| 3174 | |
| 3175 | selectedRun = 0; |
| 3176 | runCount = 1; |
| 3177 | |
| 3178 | // Run through tabs and lay them out in a single run |
| 3179 | Rectangle rect; |
| 3180 | for (i = 0; i < tabCount; i++) { |
| 3181 | rect = rects[i]; |
| 3182 | |
| 3183 | if (!verticalTabRuns) { |
| 3184 | // Tabs on TOP or BOTTOM.... |
| 3185 | if (i > 0) { |
| 3186 | rect.x = rects[i-1].x + rects[i-1].width; |
| 3187 | } else { |
| 3188 | tabRuns[0] = 0; |
| 3189 | maxTabWidth = 0; |
| 3190 | totalHeight += maxTabHeight; |
| 3191 | rect.x = x; |
| 3192 | } |
| 3193 | rect.width = calculateTabWidth(tabPlacement, i, metrics); |
| 3194 | totalWidth = rect.x + rect.width; |
| 3195 | maxTabWidth = Math.max(maxTabWidth, rect.width); |
| 3196 | |
| 3197 | rect.y = y; |
| 3198 | rect.height = maxTabHeight/* - 2*/; |
| 3199 | |
| 3200 | } else { |
| 3201 | // Tabs on LEFT or RIGHT... |
| 3202 | if (i > 0) { |
| 3203 | rect.y = rects[i-1].y + rects[i-1].height; |
| 3204 | } else { |
| 3205 | tabRuns[0] = 0; |
| 3206 | maxTabHeight = 0; |
| 3207 | totalWidth = maxTabWidth; |
| 3208 | rect.y = y; |
| 3209 | } |
| 3210 | rect.height = calculateTabHeight(tabPlacement, i, fontHeight); |
| 3211 | totalHeight = rect.y + rect.height; |
| 3212 | maxTabHeight = Math.max(maxTabHeight, rect.height); |
| 3213 | |
| 3214 | rect.x = x; |
| 3215 | rect.width = maxTabWidth/* - 2*/; |
| 3216 | |
| 3217 | } |
| 3218 | } |
| 3219 | |
| 3220 | if (tabsOverlapBorder) { |
| 3221 | // Pad the selected tab so that it appears raised in front |
| 3222 | padSelectedTab(tabPlacement, selectedIndex); |
| 3223 | } |
| 3224 | |
| 3225 | // if right to left and tab placement on the top or |
| 3226 | // the bottom, flip x positions and adjust by widths |
| 3227 | if (!leftToRight && !verticalTabRuns) { |
| 3228 | int rightMargin = size.width |
| 3229 | - (insets.right + tabAreaInsets.right); |
| 3230 | for (i = 0; i < tabCount; i++) { |
| 3231 | rects[i].x = rightMargin - rects[i].x - rects[i].width; |
| 3232 | } |
| 3233 | } |
| 3234 | tabScroller.tabPanel.setPreferredSize(new Dimension(totalWidth, totalHeight)); |
| 3235 | } |
| 3236 | } |
| 3237 | |
| 3238 | private class ScrollableTabSupport implements ActionListener, |
| 3239 | ChangeListener { |
| 3240 | public ScrollableTabViewport viewport; |
| 3241 | public ScrollableTabPanel tabPanel; |
| 3242 | public JButton scrollForwardButton; |
| 3243 | public JButton scrollBackwardButton; |
| 3244 | public CroppedEdge croppedEdge; |
| 3245 | public int leadingTabIndex; |
| 3246 | |
| 3247 | private Point tabViewPosition = new Point(0,0); |
| 3248 | |
| 3249 | ScrollableTabSupport(int tabPlacement) { |
| 3250 | viewport = new ScrollableTabViewport(); |
| 3251 | tabPanel = new ScrollableTabPanel(); |
| 3252 | viewport.setView(tabPanel); |
| 3253 | viewport.addChangeListener(this); |
| 3254 | croppedEdge = new CroppedEdge(); |
| 3255 | createButtons(); |
| 3256 | } |
| 3257 | |
| 3258 | /** |
| 3259 | * Recreates the scroll buttons and adds them to the TabbedPane. |
| 3260 | */ |
| 3261 | void createButtons() { |
| 3262 | if (scrollForwardButton != null) { |
| 3263 | tabPane.remove(scrollForwardButton); |
| 3264 | scrollForwardButton.removeActionListener(this); |
| 3265 | tabPane.remove(scrollBackwardButton); |
| 3266 | scrollBackwardButton.removeActionListener(this); |
| 3267 | } |
| 3268 | int tabPlacement = tabPane.getTabPlacement(); |
| 3269 | if (tabPlacement == TOP || tabPlacement == BOTTOM) { |
| 3270 | scrollForwardButton = createScrollButton(EAST); |
| 3271 | scrollBackwardButton = createScrollButton(WEST); |
| 3272 | |
| 3273 | } else { // tabPlacement = LEFT || RIGHT |
| 3274 | scrollForwardButton = createScrollButton(SOUTH); |
| 3275 | scrollBackwardButton = createScrollButton(NORTH); |
| 3276 | } |
| 3277 | scrollForwardButton.addActionListener(this); |
| 3278 | scrollBackwardButton.addActionListener(this); |
| 3279 | tabPane.add(scrollForwardButton); |
| 3280 | tabPane.add(scrollBackwardButton); |
| 3281 | } |
| 3282 | |
| 3283 | public void scrollForward(int tabPlacement) { |
| 3284 | Dimension viewSize = viewport.getViewSize(); |
| 3285 | Rectangle viewRect = viewport.getViewRect(); |
| 3286 | |
| 3287 | if (tabPlacement == TOP || tabPlacement == BOTTOM) { |
| 3288 | if (viewRect.width >= viewSize.width - viewRect.x) { |
| 3289 | return; // no room left to scroll |
| 3290 | } |
| 3291 | } else { // tabPlacement == LEFT || tabPlacement == RIGHT |
| 3292 | if (viewRect.height >= viewSize.height - viewRect.y) { |
| 3293 | return; |
| 3294 | } |
| 3295 | } |
| 3296 | setLeadingTabIndex(tabPlacement, leadingTabIndex+1); |
| 3297 | } |
| 3298 | |
| 3299 | public void scrollBackward(int tabPlacement) { |
| 3300 | if (leadingTabIndex == 0) { |
| 3301 | return; // no room left to scroll |
| 3302 | } |
| 3303 | setLeadingTabIndex(tabPlacement, leadingTabIndex-1); |
| 3304 | } |
| 3305 | |
| 3306 | public void setLeadingTabIndex(int tabPlacement, int index) { |
| 3307 | leadingTabIndex = index; |
| 3308 | Dimension viewSize = viewport.getViewSize(); |
| 3309 | Rectangle viewRect = viewport.getViewRect(); |
| 3310 | |
| 3311 | switch(tabPlacement) { |
| 3312 | case TOP: |
| 3313 | case BOTTOM: |
| 3314 | tabViewPosition.x = leadingTabIndex == 0? 0 : rects[leadingTabIndex].x; |
| 3315 | |
| 3316 | if ((viewSize.width - tabViewPosition.x) < viewRect.width) { |
| 3317 | // We've scrolled to the end, so adjust the viewport size |
| 3318 | // to ensure the view position remains aligned on a tab boundary |
| 3319 | Dimension extentSize = new Dimension(viewSize.width - tabViewPosition.x, |
| 3320 | viewRect.height); |
| 3321 | viewport.setExtentSize(extentSize); |
| 3322 | } |
| 3323 | break; |
| 3324 | case LEFT: |
| 3325 | case RIGHT: |
| 3326 | tabViewPosition.y = leadingTabIndex == 0? 0 : rects[leadingTabIndex].y; |
| 3327 | |
| 3328 | if ((viewSize.height - tabViewPosition.y) < viewRect.height) { |
| 3329 | // We've scrolled to the end, so adjust the viewport size |
| 3330 | // to ensure the view position remains aligned on a tab boundary |
| 3331 | Dimension extentSize = new Dimension(viewRect.width, |
| 3332 | viewSize.height - tabViewPosition.y); |
| 3333 | viewport.setExtentSize(extentSize); |
| 3334 | } |
| 3335 | } |
| 3336 | viewport.setViewPosition(tabViewPosition); |
| 3337 | } |
| 3338 | |
| 3339 | public void stateChanged(ChangeEvent e) { |
| 3340 | updateView(); |
| 3341 | } |
| 3342 | |
| 3343 | private void updateView() { |
| 3344 | int tabPlacement = tabPane.getTabPlacement(); |
| 3345 | int tabCount = tabPane.getTabCount(); |
| 3346 | Rectangle vpRect = viewport.getBounds(); |
| 3347 | Dimension viewSize = viewport.getViewSize(); |
| 3348 | Rectangle viewRect = viewport.getViewRect(); |
| 3349 | |
| 3350 | leadingTabIndex = getClosestTab(viewRect.x, viewRect.y); |
| 3351 | |
| 3352 | // If the tab isn't right aligned, adjust it. |
| 3353 | if (leadingTabIndex + 1 < tabCount) { |
| 3354 | switch (tabPlacement) { |
| 3355 | case TOP: |
| 3356 | case BOTTOM: |
| 3357 | if (rects[leadingTabIndex].x < viewRect.x) { |
| 3358 | leadingTabIndex++; |
| 3359 | } |
| 3360 | break; |
| 3361 | case LEFT: |
| 3362 | case RIGHT: |
| 3363 | if (rects[leadingTabIndex].y < viewRect.y) { |
| 3364 | leadingTabIndex++; |
| 3365 | } |
| 3366 | break; |
| 3367 | } |
| 3368 | } |
| 3369 | Insets contentInsets = getContentBorderInsets(tabPlacement); |
| 3370 | switch(tabPlacement) { |
| 3371 | case LEFT: |
| 3372 | tabPane.repaint(vpRect.x+vpRect.width, vpRect.y, |
| 3373 | contentInsets.left, vpRect.height); |
| 3374 | scrollBackwardButton.setEnabled( |
| 3375 | viewRect.y > 0 && leadingTabIndex > 0); |
| 3376 | scrollForwardButton.setEnabled( |
| 3377 | leadingTabIndex < tabCount-1 && |
| 3378 | viewSize.height-viewRect.y > viewRect.height); |
| 3379 | break; |
| 3380 | case RIGHT: |
| 3381 | tabPane.repaint(vpRect.x-contentInsets.right, vpRect.y, |
| 3382 | contentInsets.right, vpRect.height); |
| 3383 | scrollBackwardButton.setEnabled( |
| 3384 | viewRect.y > 0 && leadingTabIndex > 0); |
| 3385 | scrollForwardButton.setEnabled( |
| 3386 | leadingTabIndex < tabCount-1 && |
| 3387 | viewSize.height-viewRect.y > viewRect.height); |
| 3388 | break; |
| 3389 | case BOTTOM: |
| 3390 | tabPane.repaint(vpRect.x, vpRect.y-contentInsets.bottom, |
| 3391 | vpRect.width, contentInsets.bottom); |
| 3392 | scrollBackwardButton.setEnabled( |
| 3393 | viewRect.x > 0 && leadingTabIndex > 0); |
| 3394 | scrollForwardButton.setEnabled( |
| 3395 | leadingTabIndex < tabCount-1 && |
| 3396 | viewSize.width-viewRect.x > viewRect.width); |
| 3397 | break; |
| 3398 | case TOP: |
| 3399 | default: |
| 3400 | tabPane.repaint(vpRect.x, vpRect.y+vpRect.height, |
| 3401 | vpRect.width, contentInsets.top); |
| 3402 | scrollBackwardButton.setEnabled( |
| 3403 | viewRect.x > 0 && leadingTabIndex > 0); |
| 3404 | scrollForwardButton.setEnabled( |
| 3405 | leadingTabIndex < tabCount-1 && |
| 3406 | viewSize.width-viewRect.x > viewRect.width); |
| 3407 | } |
| 3408 | } |
| 3409 | |
| 3410 | /** |
| 3411 | * ActionListener for the scroll buttons. |
| 3412 | */ |
| 3413 | public void actionPerformed(ActionEvent e) { |
| 3414 | ActionMap map = tabPane.getActionMap(); |
| 3415 | |
| 3416 | if (map != null) { |
| 3417 | String actionKey; |
| 3418 | |
| 3419 | if (e.getSource() == scrollForwardButton) { |
| 3420 | actionKey = "scrollTabsForwardAction"; |
| 3421 | } |
| 3422 | else { |
| 3423 | actionKey = "scrollTabsBackwardAction"; |
| 3424 | } |
| 3425 | Action action = map.get(actionKey); |
| 3426 | |
| 3427 | if (action != null && action.isEnabled()) { |
| 3428 | action.actionPerformed(new ActionEvent(tabPane, |
| 3429 | ActionEvent.ACTION_PERFORMED, null, e.getWhen(), |
| 3430 | e.getModifiers())); |
| 3431 | } |
| 3432 | } |
| 3433 | } |
| 3434 | |
| 3435 | public String toString() { |
| 3436 | return new String("viewport.viewSize="+viewport.getViewSize()+"\n"+ |
| 3437 | "viewport.viewRectangle="+viewport.getViewRect()+"\n"+ |
| 3438 | "leadingTabIndex="+leadingTabIndex+"\n"+ |
| 3439 | "tabViewPosition="+tabViewPosition); |
| 3440 | } |
| 3441 | |
| 3442 | } |
| 3443 | |
| 3444 | private class ScrollableTabViewport extends JViewport implements UIResource { |
| 3445 | public ScrollableTabViewport() { |
| 3446 | super(); |
| 3447 | setName("TabbedPane.scrollableViewport"); |
| 3448 | setScrollMode(SIMPLE_SCROLL_MODE); |
| 3449 | setOpaque(tabPane.isOpaque()); |
| 3450 | Color bgColor = UIManager.getColor("TabbedPane.tabAreaBackground"); |
| 3451 | if (bgColor == null) { |
| 3452 | bgColor = tabPane.getBackground(); |
| 3453 | } |
| 3454 | setBackground(bgColor); |
| 3455 | } |
| 3456 | } |
| 3457 | |
| 3458 | private class ScrollableTabPanel extends JPanel implements UIResource { |
| 3459 | public ScrollableTabPanel() { |
| 3460 | super(null); |
| 3461 | setOpaque(tabPane.isOpaque()); |
| 3462 | Color bgColor = UIManager.getColor("TabbedPane.tabAreaBackground"); |
| 3463 | if (bgColor == null) { |
| 3464 | bgColor = tabPane.getBackground(); |
| 3465 | } |
| 3466 | setBackground(bgColor); |
| 3467 | } |
| 3468 | public void paintComponent(Graphics g) { |
| 3469 | super.paintComponent(g); |
| 3470 | BasicTabbedPaneUI.this.paintTabArea(g, tabPane.getTabPlacement(), |
| 3471 | tabPane.getSelectedIndex()); |
| 3472 | if (tabScroller.croppedEdge.isParamsSet() && tabContainer == null) { |
| 3473 | Rectangle croppedRect = rects[tabScroller.croppedEdge.getTabIndex()]; |
| 3474 | g.translate(croppedRect.x, croppedRect.y); |
| 3475 | tabScroller.croppedEdge.paintComponent(g); |
| 3476 | g.translate(-croppedRect.x, -croppedRect.y); |
| 3477 | } |
| 3478 | } |
| 3479 | |
| 3480 | public void doLayout() { |
| 3481 | if (getComponentCount() > 0) { |
| 3482 | Component child = getComponent(0); |
| 3483 | child.setBounds(0, 0, getWidth(), getHeight()); |
| 3484 | } |
| 3485 | } |
| 3486 | } |
| 3487 | |
| 3488 | private class ScrollableTabButton extends BasicArrowButton implements UIResource, |
| 3489 | SwingConstants { |
| 3490 | public ScrollableTabButton(int direction) { |
| 3491 | super(direction, |
| 3492 | UIManager.getColor("TabbedPane.selected"), |
| 3493 | UIManager.getColor("TabbedPane.shadow"), |
| 3494 | UIManager.getColor("TabbedPane.darkShadow"), |
| 3495 | UIManager.getColor("TabbedPane.highlight")); |
| 3496 | } |
| 3497 | } |
| 3498 | |
| 3499 | |
| 3500 | // Controller: event listeners |
| 3501 | |
| 3502 | private class Handler implements ChangeListener, ContainerListener, |
| 3503 | FocusListener, MouseListener, MouseMotionListener, |
| 3504 | PropertyChangeListener { |
| 3505 | // |
| 3506 | // PropertyChangeListener |
| 3507 | // |
| 3508 | public void propertyChange(PropertyChangeEvent e) { |
| 3509 | JTabbedPane pane = (JTabbedPane)e.getSource(); |
| 3510 | String name = e.getPropertyName(); |
| 3511 | boolean isScrollLayout = scrollableTabLayoutEnabled(); |
| 3512 | if (name == "mnemonicAt") { |
| 3513 | updateMnemonics(); |
| 3514 | pane.repaint(); |
| 3515 | } |
| 3516 | else if (name == "displayedMnemonicIndexAt") { |
| 3517 | pane.repaint(); |
| 3518 | } |
| 3519 | else if (name =="indexForTitle") { |
| 3520 | calculatedBaseline = false; |
| 3521 | updateHtmlViews((Integer)e.getNewValue()); |
| 3522 | } else if (name == "tabLayoutPolicy") { |
| 3523 | BasicTabbedPaneUI.this.uninstallUI(pane); |
| 3524 | BasicTabbedPaneUI.this.installUI(pane); |
| 3525 | calculatedBaseline = false; |
| 3526 | } else if (name == "tabPlacement") { |
| 3527 | if (scrollableTabLayoutEnabled()) { |
| 3528 | tabScroller.createButtons(); |
| 3529 | } |
| 3530 | calculatedBaseline = false; |
| 3531 | } else if (name == "opaque" && isScrollLayout) { |
| 3532 | boolean newVal = ((Boolean)e.getNewValue()).booleanValue(); |
| 3533 | tabScroller.tabPanel.setOpaque(newVal); |
| 3534 | tabScroller.viewport.setOpaque(newVal); |
| 3535 | } else if (name == "background" && isScrollLayout) { |
| 3536 | Color newVal = (Color)e.getNewValue(); |
| 3537 | tabScroller.tabPanel.setBackground(newVal); |
| 3538 | tabScroller.viewport.setBackground(newVal); |
| 3539 | Color newColor = selectedColor == null ? newVal : selectedColor; |
| 3540 | tabScroller.scrollForwardButton.setBackground(newColor); |
| 3541 | tabScroller.scrollBackwardButton.setBackground(newColor); |
| 3542 | } else if (name == "indexForTabComponent") { |
| 3543 | if (tabContainer != null) { |
| 3544 | tabContainer.removeUnusedTabComponents(); |
| 3545 | } |
| 3546 | Component c = tabPane.getTabComponentAt( |
| 3547 | (Integer)e.getNewValue()); |
| 3548 | if (c != null) { |
| 3549 | if (tabContainer == null) { |
| 3550 | installTabContainer(); |
| 3551 | } else { |
| 3552 | tabContainer.add(c); |
| 3553 | } |
| 3554 | } |
| 3555 | tabPane.revalidate(); |
| 3556 | tabPane.repaint(); |
| 3557 | calculatedBaseline = false; |
| 3558 | } else if (name == "indexForNullComponent") { |
| 3559 | isRunsDirty = true; |
| 3560 | updateHtmlViews((Integer)e.getNewValue()); |
| 3561 | } else if (name == "font") { |
| 3562 | calculatedBaseline = false; |
| 3563 | } |
| 3564 | } |
| 3565 | |
| 3566 | private void updateHtmlViews(int index) { |
| 3567 | String title = tabPane.getTitleAt(index); |
| 3568 | boolean isHTML = BasicHTML.isHTMLString(title); |
| 3569 | if (isHTML) { |
| 3570 | if (htmlViews==null) { // Initialize vector |
| 3571 | htmlViews = createHTMLVector(); |
| 3572 | } else { // Vector already exists |
| 3573 | View v = BasicHTML.createHTMLView(tabPane, title); |
| 3574 | htmlViews.insertElementAt(v, index); |
| 3575 | } |
| 3576 | } else { // Not HTML |
| 3577 | if (htmlViews!=null) { // Add placeholder |
| 3578 | htmlViews.insertElementAt(null, index); |
| 3579 | } // else nada! |
| 3580 | } |
| 3581 | updateMnemonics(); |
| 3582 | } |
| 3583 | |
| 3584 | // |
| 3585 | // ChangeListener |
| 3586 | // |
| 3587 | public void stateChanged(ChangeEvent e) { |
| 3588 | JTabbedPane tabPane = (JTabbedPane)e.getSource(); |
| 3589 | tabPane.revalidate(); |
| 3590 | tabPane.repaint(); |
| 3591 | |
| 3592 | setFocusIndex(tabPane.getSelectedIndex(), false); |
| 3593 | |
| 3594 | if (scrollableTabLayoutEnabled()) { |
| 3595 | int index = tabPane.getSelectedIndex(); |
| 3596 | if (index < rects.length && index != -1) { |
| 3597 | tabScroller.tabPanel.scrollRectToVisible( |
| 3598 | (Rectangle)rects[index].clone()); |
| 3599 | } |
| 3600 | } |
| 3601 | } |
| 3602 | |
| 3603 | // |
| 3604 | // MouseListener |
| 3605 | // |
| 3606 | public void mouseClicked(MouseEvent e) { |
| 3607 | } |
| 3608 | |
| 3609 | public void mouseReleased(MouseEvent e) { |
| 3610 | } |
| 3611 | |
| 3612 | public void mouseEntered(MouseEvent e) { |
| 3613 | setRolloverTab(e.getX(), e.getY()); |
| 3614 | } |
| 3615 | |
| 3616 | public void mouseExited(MouseEvent e) { |
| 3617 | setRolloverTab(-1); |
| 3618 | } |
| 3619 | |
| 3620 | public void mousePressed(MouseEvent e) { |
| 3621 | if (!tabPane.isEnabled()) { |
| 3622 | return; |
| 3623 | } |
| 3624 | int tabIndex = tabForCoordinate(tabPane, e.getX(), e.getY()); |
| 3625 | if (tabIndex >= 0 && tabPane.isEnabledAt(tabIndex)) { |
| 3626 | if (tabIndex != tabPane.getSelectedIndex()) { |
| 3627 | // Clicking on unselected tab, change selection, do NOT |
| 3628 | // request focus. |
| 3629 | // This will trigger the focusIndex to change by way |
| 3630 | // of stateChanged. |
| 3631 | tabPane.setSelectedIndex(tabIndex); |
| 3632 | } |
| 3633 | else if (tabPane.isRequestFocusEnabled()) { |
| 3634 | // Clicking on selected tab, try and give the tabbedpane |
| 3635 | // focus. Repaint will occur in focusGained. |
| 3636 | tabPane.requestFocus(); |
| 3637 | } |
| 3638 | } |
| 3639 | } |
| 3640 | |
| 3641 | // |
| 3642 | // MouseMotionListener |
| 3643 | // |
| 3644 | public void mouseDragged(MouseEvent e) { |
| 3645 | } |
| 3646 | |
| 3647 | public void mouseMoved(MouseEvent e) { |
| 3648 | setRolloverTab(e.getX(), e.getY()); |
| 3649 | } |
| 3650 | |
| 3651 | // |
| 3652 | // FocusListener |
| 3653 | // |
| 3654 | public void focusGained(FocusEvent e) { |
| 3655 | setFocusIndex(tabPane.getSelectedIndex(), true); |
| 3656 | } |
| 3657 | public void focusLost(FocusEvent e) { |
| 3658 | repaintTab(focusIndex); |
| 3659 | } |
| 3660 | |
| 3661 | |
| 3662 | // |
| 3663 | // ContainerListener |
| 3664 | // |
| 3665 | /* GES 2/3/99: |
| 3666 | The container listener code was added to support HTML |
| 3667 | rendering of tab titles. |
| 3668 | |
| 3669 | Ideally, we would be able to listen for property changes |
| 3670 | when a tab is added or its text modified. At the moment |
| 3671 | there are no such events because the Beans spec doesn't |
| 3672 | allow 'indexed' property changes (i.e. tab 2's text changed |
| 3673 | from A to B). |
| 3674 | |
| 3675 | In order to get around this, we listen for tabs to be added |
| 3676 | or removed by listening for the container events. we then |
| 3677 | queue up a runnable (so the component has a chance to complete |
| 3678 | the add) which checks the tab title of the new component to see |
| 3679 | if it requires HTML rendering. |
| 3680 | |
| 3681 | The Views (one per tab title requiring HTML rendering) are |
| 3682 | stored in the htmlViews Vector, which is only allocated after |
| 3683 | the first time we run into an HTML tab. Note that this vector |
| 3684 | is kept in step with the number of pages, and nulls are added |
| 3685 | for those pages whose tab title do not require HTML rendering. |
| 3686 | |
| 3687 | This makes it easy for the paint and layout code to tell |
| 3688 | whether to invoke the HTML engine without having to check |
| 3689 | the string during time-sensitive operations. |
| 3690 | |
| 3691 | When we have added a way to listen for tab additions and |
| 3692 | changes to tab text, this code should be removed and |
| 3693 | replaced by something which uses that. */ |
| 3694 | |
| 3695 | public void componentAdded(ContainerEvent e) { |
| 3696 | JTabbedPane tp = (JTabbedPane)e.getContainer(); |
| 3697 | Component child = e.getChild(); |
| 3698 | if (child instanceof UIResource) { |
| 3699 | return; |
| 3700 | } |
| 3701 | isRunsDirty = true; |
| 3702 | updateHtmlViews(tp.indexOfComponent(child)); |
| 3703 | } |
| 3704 | public void componentRemoved(ContainerEvent e) { |
| 3705 | JTabbedPane tp = (JTabbedPane)e.getContainer(); |
| 3706 | Component child = e.getChild(); |
| 3707 | if (child instanceof UIResource) { |
| 3708 | return; |
| 3709 | } |
| 3710 | |
| 3711 | // NOTE 4/15/2002 (joutwate): |
| 3712 | // This fix is implemented using client properties since there is |
| 3713 | // currently no IndexPropertyChangeEvent. Once |
| 3714 | // IndexPropertyChangeEvents have been added this code should be |
| 3715 | // modified to use it. |
| 3716 | Integer indexObj = |
| 3717 | (Integer)tp.getClientProperty("__index_to_remove__"); |
| 3718 | if (indexObj != null) { |
| 3719 | int index = indexObj.intValue(); |
| 3720 | if (htmlViews != null && htmlViews.size() > index) { |
| 3721 | htmlViews.removeElementAt(index); |
| 3722 | } |
| 3723 | tp.putClientProperty("__index_to_remove__", null); |
| 3724 | } |
| 3725 | isRunsDirty = true; |
| 3726 | updateMnemonics(); |
| 3727 | |
| 3728 | validateFocusIndex(); |
| 3729 | } |
| 3730 | } |
| 3731 | |
| 3732 | /** |
| 3733 | * This class should be treated as a "protected" inner class. |
| 3734 | * Instantiate it only within subclasses of BasicTabbedPaneUI. |
| 3735 | */ |
| 3736 | public class PropertyChangeHandler implements PropertyChangeListener { |
| 3737 | // NOTE: This class exists only for backward compatability. All |
| 3738 | // its functionality has been moved into Handler. If you need to add |
| 3739 | // new functionality add it to the Handler, but make sure this |
| 3740 | // class calls into the Handler. |
| 3741 | public void propertyChange(PropertyChangeEvent e) { |
| 3742 | getHandler().propertyChange(e); |
| 3743 | } |
| 3744 | } |
| 3745 | |
| 3746 | /** |
| 3747 | * This class should be treated as a "protected" inner class. |
| 3748 | * Instantiate it only within subclasses of BasicTabbedPaneUI. |
| 3749 | */ |
| 3750 | public class TabSelectionHandler implements ChangeListener { |
| 3751 | // NOTE: This class exists only for backward compatability. All |
| 3752 | // its functionality has been moved into Handler. If you need to add |
| 3753 | // new functionality add it to the Handler, but make sure this |
| 3754 | // class calls into the Handler. |
| 3755 | public void stateChanged(ChangeEvent e) { |
| 3756 | getHandler().stateChanged(e); |
| 3757 | } |
| 3758 | } |
| 3759 | |
| 3760 | /** |
| 3761 | * This class should be treated as a "protected" inner class. |
| 3762 | * Instantiate it only within subclasses of BasicTabbedPaneUI. |
| 3763 | */ |
| 3764 | public class MouseHandler extends MouseAdapter { |
| 3765 | // NOTE: This class exists only for backward compatability. All |
| 3766 | // its functionality has been moved into Handler. If you need to add |
| 3767 | // new functionality add it to the Handler, but make sure this |
| 3768 | // class calls into the Handler. |
| 3769 | public void mousePressed(MouseEvent e) { |
| 3770 | getHandler().mousePressed(e); |
| 3771 | } |
| 3772 | } |
| 3773 | |
| 3774 | /** |
| 3775 | * This class should be treated as a "protected" inner class. |
| 3776 | * Instantiate it only within subclasses of BasicTabbedPaneUI. |
| 3777 | */ |
| 3778 | public class FocusHandler extends FocusAdapter { |
| 3779 | // NOTE: This class exists only for backward compatability. All |
| 3780 | // its functionality has been moved into Handler. If you need to add |
| 3781 | // new functionality add it to the Handler, but make sure this |
| 3782 | // class calls into the Handler. |
| 3783 | public void focusGained(FocusEvent e) { |
| 3784 | getHandler().focusGained(e); |
| 3785 | } |
| 3786 | public void focusLost(FocusEvent e) { |
| 3787 | getHandler().focusLost(e); |
| 3788 | } |
| 3789 | } |
| 3790 | |
| 3791 | private Vector createHTMLVector() { |
| 3792 | Vector htmlViews = new Vector(); |
| 3793 | int count = tabPane.getTabCount(); |
| 3794 | if (count>0) { |
| 3795 | for (int i=0 ; i<count; i++) { |
| 3796 | String title = tabPane.getTitleAt(i); |
| 3797 | if (BasicHTML.isHTMLString(title)) { |
| 3798 | htmlViews.addElement(BasicHTML.createHTMLView(tabPane, title)); |
| 3799 | } else { |
| 3800 | htmlViews.addElement(null); |
| 3801 | } |
| 3802 | } |
| 3803 | } |
| 3804 | return htmlViews; |
| 3805 | } |
| 3806 | |
| 3807 | private class TabContainer extends JPanel implements UIResource { |
| 3808 | private boolean notifyTabbedPane = true; |
| 3809 | |
| 3810 | public TabContainer() { |
| 3811 | super(null); |
| 3812 | setOpaque(false); |
| 3813 | } |
| 3814 | |
| 3815 | public void remove(Component comp) { |
| 3816 | int index = tabPane.indexOfTabComponent(comp); |
| 3817 | super.remove(comp); |
| 3818 | if (notifyTabbedPane && index != -1) { |
| 3819 | tabPane.setTabComponentAt(index, null); |
| 3820 | } |
| 3821 | } |
| 3822 | |
| 3823 | private void removeUnusedTabComponents() { |
| 3824 | for (Component c : getComponents()) { |
| 3825 | if (!(c instanceof UIResource)) { |
| 3826 | int index = tabPane.indexOfTabComponent(c); |
| 3827 | if (index == -1) { |
| 3828 | super.remove(c); |
| 3829 | } |
| 3830 | } |
| 3831 | } |
| 3832 | } |
| 3833 | |
| 3834 | public boolean isOptimizedDrawingEnabled() { |
| 3835 | return tabScroller != null && !tabScroller.croppedEdge.isParamsSet(); |
| 3836 | } |
| 3837 | |
| 3838 | public void doLayout() { |
| 3839 | // We layout tabComponents in JTabbedPane's layout manager |
| 3840 | // and use this method as a hook for repainting tabs |
| 3841 | // to update tabs area e.g. when the size of tabComponent was changed |
| 3842 | if (scrollableTabLayoutEnabled()) { |
| 3843 | tabScroller.tabPanel.repaint(); |
| 3844 | tabScroller.updateView(); |
| 3845 | } else { |
| 3846 | tabPane.repaint(getBounds()); |
| 3847 | } |
| 3848 | } |
| 3849 | } |
| 3850 | |
| 3851 | private class CroppedEdge extends JPanel implements UIResource { |
| 3852 | private Shape shape; |
| 3853 | private int tabIndex; |
| 3854 | private int cropline; |
| 3855 | private int cropx, cropy; |
| 3856 | |
| 3857 | public CroppedEdge() { |
| 3858 | setOpaque(false); |
| 3859 | } |
| 3860 | |
| 3861 | public void setParams(int tabIndex, int cropline, int cropx, int cropy) { |
| 3862 | this.tabIndex = tabIndex; |
| 3863 | this.cropline = cropline; |
| 3864 | this.cropx = cropx; |
| 3865 | this.cropy = cropy; |
| 3866 | Rectangle tabRect = rects[tabIndex]; |
| 3867 | setBounds(tabRect); |
| 3868 | shape = createCroppedTabShape(tabPane.getTabPlacement(), tabRect, cropline); |
| 3869 | if (getParent() == null && tabContainer != null) { |
| 3870 | tabContainer.add(this, 0); |
| 3871 | } |
| 3872 | } |
| 3873 | |
| 3874 | public void resetParams() { |
| 3875 | shape = null; |
| 3876 | if (getParent() == tabContainer && tabContainer != null) { |
| 3877 | tabContainer.remove(this); |
| 3878 | } |
| 3879 | } |
| 3880 | |
| 3881 | public boolean isParamsSet() { |
| 3882 | return shape != null; |
| 3883 | } |
| 3884 | |
| 3885 | public int getTabIndex() { |
| 3886 | return tabIndex; |
| 3887 | } |
| 3888 | |
| 3889 | public int getCropline() { |
| 3890 | return cropline; |
| 3891 | } |
| 3892 | |
| 3893 | public int getCroppedSideWidth() { |
| 3894 | return 3; |
| 3895 | } |
| 3896 | |
| 3897 | private Color getBgColor() { |
| 3898 | Component parent = tabPane.getParent(); |
| 3899 | if (parent != null) { |
| 3900 | Color bg = parent.getBackground(); |
| 3901 | if (bg != null) { |
| 3902 | return bg; |
| 3903 | } |
| 3904 | } |
| 3905 | return UIManager.getColor("control"); |
| 3906 | } |
| 3907 | |
| 3908 | protected void paintComponent(Graphics g) { |
| 3909 | super.paintComponent(g); |
| 3910 | if (isParamsSet() && g instanceof Graphics2D) { |
| 3911 | Graphics2D g2 = (Graphics2D) g; |
| 3912 | g2.clipRect(0, 0, getWidth(), getHeight()); |
| 3913 | g2.setColor(getBgColor()); |
| 3914 | g2.translate(cropx, cropy); |
| 3915 | g2.fill(shape); |
| 3916 | paintCroppedTabEdge(g); |
| 3917 | g2.translate(-cropx, -cropy); |
| 3918 | } |
| 3919 | } |
| 3920 | } |
| 3921 | } |