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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | + | |
| 27 | +package javax.swing; | |
| 28 | + | |
| 29 | +import com.sun.awt.AWTUtilities; | |
| 30 | +import sun.awt.AWTAccessor; | |
| 31 | +import sun.awt.SunToolkit; | |
| 32 | + | |
| 33 | +import java.awt.*; | |
| 34 | +import java.beans.PropertyVetoException; | |
| 35 | + | |
| 36 | +/** This is an implementation of the <code>DesktopManager</code>. | |
| 37 | + * It currently implements the basic behaviors for managing | |
| 38 | + * <code>JInternalFrame</code>s in an arbitrary parent. | |
| 39 | + * <code>JInternalFrame</code>s that are not children of a | |
| 40 | + * <code>JDesktop</code> will use this component | |
| 41 | + * to handle their desktop-like actions. | |
| 42 | + * <p>This class provides a policy for the various JInternalFrame methods, | |
| 43 | + * it is not meant to be called directly rather the various JInternalFrame | |
| 44 | + * methods will call into the DesktopManager.</p> | |
| 45 | + * @see JDesktopPane | |
| 46 | + * @see JInternalFrame | |
| 47 | + * @author David Kloba | |
| 48 | + * @author Steve Wilson | |
| 49 | + */ | |
| 50 | +public class DefaultDesktopManager implements DesktopManager, java.io.Serializable { | |
| 51 | + final static String HAS_BEEN_ICONIFIED_PROPERTY = "wasIconOnce"; | |
| 52 | + | |
| 53 | + final static int DEFAULT_DRAG_MODE = 0; | |
| 54 | + final static int OUTLINE_DRAG_MODE = 1; | |
| 55 | + final static int FASTER_DRAG_MODE = 2; | |
| 56 | + | |
| 57 | + int dragMode = DEFAULT_DRAG_MODE; | |
| 58 | + | |
| 59 | + private transient Rectangle currentBounds = null; | |
| 60 | + private transient Graphics desktopGraphics = null; | |
| 61 | + private transient Rectangle desktopBounds = null; | |
| 62 | + private transient Rectangle[] floatingItems = {}; | |
| 63 | + | |
| 64 | + /** | |
| 65 | + * Set to true when the user actually drags a frame vs clicks on it | |
| 66 | + * to start the drag operation. This is only used when dragging with | |
| 67 | + * FASTER_DRAG_MODE. | |
| 68 | + */ | |
| 69 | + private transient boolean didDrag; | |
| 70 | + | |
| 71 | + /** Normally this method will not be called. If it is, it | |
| 72 | + * try to determine the appropriate parent from the desktopIcon of the frame. | |
| 73 | + * Will remove the desktopIcon from its parent if it successfully adds the frame. | |
| 74 | + */ | |
| 75 | + public void openFrame(JInternalFrame f) { | |
| 76 | + if(f.getDesktopIcon().getParent() != null) { | |
| 77 | + f.getDesktopIcon().getParent().add(f); | |
| 78 | + removeIconFor(f); | |
| 79 | + } | |
| 80 | + } | |
| 81 | + | |
| 82 | + /** | |
| 83 | + * Removes the frame, and, if necessary, the | |
| 84 | + * <code>desktopIcon</code>, from its parent. | |
| 85 | + * @param f the <code>JInternalFrame</code> to be removed | |
| 86 | + */ | |
| 87 | + public void closeFrame(JInternalFrame f) { | |
| 88 | + JDesktopPane d = f.getDesktopPane(); | |
| 89 | + if (d == null) { | |
| 90 | + return; | |
| 91 | + } | |
| 92 | + boolean findNext = f.isSelected(); | |
| 93 | + Container c = f.getParent(); | |
| 94 | + JInternalFrame nextFrame = null; | |
| 95 | + if (findNext) { | |
| 96 | + nextFrame = d.getNextFrame(f); | |
| 97 | + try { f.setSelected(false); } catch (PropertyVetoException e2) { } | |
| 98 | + } | |
| 99 | + if(c != null) { | |
| 100 | + c.remove(f); // Removes the focus. | |
| 101 | + c.repaint(f.getX(), f.getY(), f.getWidth(), f.getHeight()); | |
| 102 | + } | |
| 103 | + removeIconFor(f); | |
| 104 | + if(f.getNormalBounds() != null) | |
| 105 | + f.setNormalBounds(null); | |
| 106 | + if(wasIcon(f)) | |
| 107 | + setWasIcon(f, null); | |
| 108 | + if (nextFrame != null) { | |
| 109 | + try { nextFrame.setSelected(true); } | |
| 110 | + catch (PropertyVetoException e2) { } | |
| 111 | + } else if (findNext && d.getComponentCount() == 0) { | |
| 112 | + // It was selected and was the last component on the desktop. | |
| 113 | + d.requestFocus(); | |
| 114 | + } | |
| 115 | + } | |
| 116 | + | |
| 117 | + /** | |
| 118 | + * Resizes the frame to fill its parents bounds. | |
| 119 | + * @param f the frame to be resized | |
| 120 | + */ | |
| 121 | + public void maximizeFrame(JInternalFrame f) { | |
| 122 | + if (f.isIcon()) { | |
| 123 | + try { | |
| 124 | + // In turn calls deiconifyFrame in the desktop manager. | |
| 125 | + // That method will handle the maximization of the frame. | |
| 126 | + f.setIcon(false); | |
| 127 | + } catch (PropertyVetoException e2) { | |
| 128 | + } | |
| 129 | + } else { | |
| 130 | + f.setNormalBounds(f.getBounds()); | |
| 131 | + Rectangle desktopBounds = f.getParent().getBounds(); | |
| 132 | + setBoundsForFrame(f, 0, 0, | |
| 133 | + desktopBounds.width, desktopBounds.height); | |
| 134 | + } | |
| 135 | + | |
| 136 | + // Set the maximized frame as selected. | |
| 137 | + try { | |
| 138 | + f.setSelected(true); | |
| 139 | + } catch (PropertyVetoException e2) { | |
| 140 | + } | |
| 141 | + } | |
| 142 | + | |
| 143 | + /** | |
| 144 | + * Restores the frame back to its size and position prior | |
| 145 | + * to a <code>maximizeFrame</code> call. | |
| 146 | + * @param f the <code>JInternalFrame</code> to be restored | |
| 147 | + */ | |
| 148 | + public void minimizeFrame(JInternalFrame f) { | |
| 149 | + // If the frame was an icon restore it back to an icon. | |
| 150 | + if (f.isIcon()) { | |
| 151 | + iconifyFrame(f); | |
| 152 | + return; | |
| 153 | + } | |
| 154 | + | |
| 155 | + if ((f.getNormalBounds()) != null) { | |
| 156 | + Rectangle r = f.getNormalBounds(); | |
| 157 | + f.setNormalBounds(null); | |
| 158 | + try { f.setSelected(true); } catch (PropertyVetoException e2) { } | |
| 159 | + setBoundsForFrame(f, r.x, r.y, r.width, r.height); | |
| 160 | + } | |
| 161 | + } | |
| 162 | + | |
| 163 | + /** | |
| 164 | + * Removes the frame from its parent and adds its | |
| 165 | + * <code>desktopIcon</code> to the parent. | |
| 166 | + * @param f the <code>JInternalFrame</code> to be iconified | |
| 167 | + */ | |
| 168 | + public void iconifyFrame(JInternalFrame f) { | |
| 169 | + JInternalFrame.JDesktopIcon desktopIcon; | |
| 170 | + Container c = f.getParent(); | |
| 171 | + JDesktopPane d = f.getDesktopPane(); | |
| 172 | + boolean findNext = f.isSelected(); | |
| 173 | + desktopIcon = f.getDesktopIcon(); | |
| 174 | + if(!wasIcon(f)) { | |
| 175 | + Rectangle r = getBoundsForIconOf(f); | |
| 176 | + desktopIcon.setBounds(r.x, r.y, r.width, r.height); | |
| 177 | + // we must validate the hierarchy to not break the hw/lw mixing | |
| 178 | + desktopIcon.revalidate(); | |
| 179 | + setWasIcon(f, Boolean.TRUE); | |
| 180 | + } | |
| 181 | + | |
| 182 | + if (c == null || d == null) { | |
| 183 | + return; | |
| 184 | + } | |
| 185 | + | |
| 186 | + if (c instanceof JLayeredPane) { | |
| 187 | + JLayeredPane lp = (JLayeredPane)c; | |
| 188 | + int layer = lp.getLayer(f); | |
| 189 | + lp.putLayer(desktopIcon, layer); | |
| 190 | + } | |
| 191 | + | |
| 192 | + // If we are maximized we already have the normal bounds recorded | |
| 193 | + // don't try to re-record them, otherwise we incorrectly set the | |
| 194 | + // normal bounds to maximized state. | |
| 195 | + if (!f.isMaximum()) { | |
| 196 | + f.setNormalBounds(f.getBounds()); | |
| 197 | + } | |
| 198 | + d.setComponentOrderCheckingEnabled(false); | |
| 199 | + c.remove(f); | |
| 200 | + c.add(desktopIcon); | |
| 201 | + d.setComponentOrderCheckingEnabled(true); | |
| 202 | + c.repaint(f.getX(), f.getY(), f.getWidth(), f.getHeight()); | |
| 203 | + if (findNext) { | |
| 204 | + if (d.selectFrame(true) == null) { | |
| 205 | + // The icon is the last frame. | |
| 206 | + f.restoreSubcomponentFocus(); | |
| 207 | + } | |
| 208 | + } | |
| 209 | + } | |
| 210 | + | |
| 211 | + /** | |
| 212 | + * Removes the desktopIcon from its parent and adds its frame | |
| 213 | + * to the parent. | |
| 214 | + * @param f the <code>JInternalFrame</code> to be de-iconified | |
| 215 | + */ | |
| 216 | + public void deiconifyFrame(JInternalFrame f) { | |
| 217 | + JInternalFrame.JDesktopIcon desktopIcon = f.getDesktopIcon(); | |
| 218 | + Container c = desktopIcon.getParent(); | |
| 219 | + JDesktopPane d = f.getDesktopPane(); | |
| 220 | + if (c != null && d != null) { | |
| 221 | + c.add(f); | |
| 222 | + // If the frame is to be restored to a maximized state make | |
| 223 | + // sure it still fills the whole desktop. | |
| 224 | + if (f.isMaximum()) { | |
| 225 | + Rectangle desktopBounds = c.getBounds(); | |
| 226 | + if (f.getWidth() != desktopBounds.width || | |
| 227 | + f.getHeight() != desktopBounds.height) { | |
| 228 | + setBoundsForFrame(f, 0, 0, | |
| 229 | + desktopBounds.width, desktopBounds.height); | |
| 230 | + } | |
| 231 | + } | |
| 232 | + removeIconFor(f); | |
| 233 | + if (f.isSelected()) { | |
| 234 | + f.moveToFront(); | |
| 235 | + f.restoreSubcomponentFocus(); | |
| 236 | + } | |
| 237 | + else { | |
| 238 | + try { | |
| 239 | + f.setSelected(true); | |
| 240 | + } catch (PropertyVetoException e2) {} | |
| 241 | + | |
| 242 | + } | |
| 243 | + } | |
| 244 | + } | |
| 245 | + | |
| 246 | + /** This will activate <b>f</b> moving it to the front. It will | |
| 247 | + * set the current active frame's (if any) | |
| 248 | + * <code>IS_SELECTED_PROPERTY</code> to <code>false</code>. | |
| 249 | + * There can be only one active frame across all Layers. | |
| 250 | + * @param f the <code>JInternalFrame</code> to be activated | |
| 251 | + */ | |
| 252 | + public void activateFrame(JInternalFrame f) { | |
| 253 | + Container p = f.getParent(); | |
| 254 | + Component[] c; | |
| 255 | + JDesktopPane d = f.getDesktopPane(); | |
| 256 | + JInternalFrame currentlyActiveFrame = | |
| 257 | + (d == null) ? null : d.getSelectedFrame(); | |
| 258 | + // fix for bug: 4162443 | |
| 259 | + if(p == null) { | |
| 260 | + // If the frame is not in parent, its icon maybe, check it | |
| 261 | + p = f.getDesktopIcon().getParent(); | |
| 262 | + if(p == null) | |
| 263 | + return; | |
| 264 | + } | |
| 265 | + // we only need to keep track of the currentActive InternalFrame, if any | |
| 266 | + if (currentlyActiveFrame == null){ | |
| 267 | + if (d != null) { d.setSelectedFrame(f);} | |
| 268 | + } else if (currentlyActiveFrame != f) { | |
| 269 | + // if not the same frame as the current active | |
| 270 | + // we deactivate the current | |
| 271 | + if (currentlyActiveFrame.isSelected()) { | |
| 272 | + try { | |
| 273 | + currentlyActiveFrame.setSelected(false); | |
| 274 | + } | |
| 275 | + catch(PropertyVetoException e2) {} | |
| 276 | + } | |
| 277 | + if (d != null) { d.setSelectedFrame(f);} | |
| 278 | + } | |
| 279 | + f.moveToFront(); | |
| 280 | + } | |
| 281 | + | |
| 282 | + // implements javax.swing.DesktopManager | |
| 283 | + public void deactivateFrame(JInternalFrame f) { | |
| 284 | + JDesktopPane d = f.getDesktopPane(); | |
| 285 | + JInternalFrame currentlyActiveFrame = | |
| 286 | + (d == null) ? null : d.getSelectedFrame(); | |
| 287 | + if (currentlyActiveFrame == f) | |
| 288 | + d.setSelectedFrame(null); | |
| 289 | + } | |
| 290 | + | |
| 291 | + // implements javax.swing.DesktopManager | |
| 292 | + public void beginDraggingFrame(JComponent f) { | |
| 293 | + setupDragMode(f); | |
| 294 | + | |
| 295 | + if (dragMode == FASTER_DRAG_MODE) { | |
| 296 | + Component desktop = f.getParent(); | |
| 297 | + floatingItems = findFloatingItems(f); | |
| 298 | + currentBounds = f.getBounds(); | |
| 299 | + if (desktop instanceof JComponent) { | |
| 300 | + desktopBounds = ((JComponent)desktop).getVisibleRect(); | |
| 301 | + } | |
| 302 | + else { | |
| 303 | + desktopBounds = desktop.getBounds(); | |
| 304 | + desktopBounds.x = desktopBounds.y = 0; | |
| 305 | + } | |
| 306 | + desktopGraphics = JComponent.safelyGetGraphics(desktop); | |
| 307 | + ((JInternalFrame)f).isDragging = true; | |
| 308 | + didDrag = false; | |
| 309 | + } | |
| 310 | + | |
| 311 | + } | |
| 312 | + | |
| 313 | + private void setupDragMode(JComponent f) { | |
| 314 | + JDesktopPane p = getDesktopPane(f); | |
| 315 | + Container parent = f.getParent(); | |
| 316 | + dragMode = DEFAULT_DRAG_MODE; | |
| 317 | + if (p != null) { | |
| 318 | + String mode = (String)p.getClientProperty("JDesktopPane.dragMode"); | |
| 319 | + Window window = SwingUtilities.getWindowAncestor(f); | |
| 320 | + if (window != null && !AWTUtilities.isWindowOpaque(window)) { | |
| 321 | + dragMode = DEFAULT_DRAG_MODE; | |
| 322 | + } else if (mode != null && mode.equals("outline")) { | |
| 323 | + dragMode = OUTLINE_DRAG_MODE; | |
| 324 | + } else if (mode != null && mode.equals("faster") | |
| 325 | + && f instanceof JInternalFrame | |
| 326 | + && ((JInternalFrame)f).isOpaque() && | |
| 327 | + (parent == null || parent.isOpaque())) { | |
| 328 | + dragMode = FASTER_DRAG_MODE; | |
| 329 | + } else { | |
| 330 | + if (p.getDragMode() == JDesktopPane.OUTLINE_DRAG_MODE ) { | |
| 331 | + dragMode = OUTLINE_DRAG_MODE; | |
| 332 | + } else if ( p.getDragMode() == JDesktopPane.LIVE_DRAG_MODE | |
| 333 | + && f instanceof JInternalFrame | |
| 334 | + && ((JInternalFrame)f).isOpaque()) { | |
| 335 | + dragMode = FASTER_DRAG_MODE; | |
| 336 | + } else { | |
| 337 | + dragMode = DEFAULT_DRAG_MODE; | |
| 338 | + } | |
| 339 | + } | |
| 340 | + } | |
| 341 | + } | |
| 342 | + | |
| 343 | + private transient Point currentLoc = null; | |
| 344 | + | |
| 345 | + /** | |
| 346 | + * Moves the visible location of the frame being dragged | |
| 347 | + * to the location specified. The means by which this occurs can vary depending | |
| 348 | + * on the dragging algorithm being used. The actual logical location of the frame | |
| 349 | + * might not change until <code>endDraggingFrame</code> is called. | |
| 350 | + */ | |
| 351 | + public void dragFrame(JComponent f, int newX, int newY) { | |
| 352 | + | |
| 353 | + if (dragMode == OUTLINE_DRAG_MODE) { | |
| 354 | + JDesktopPane desktopPane = getDesktopPane(f); | |
| 355 | + if (desktopPane != null){ | |
| 356 | + Graphics g = JComponent.safelyGetGraphics(desktopPane); | |
| 357 | + | |
| 358 | + g.setXORMode(Color.white); | |
| 359 | + if (currentLoc != null) { | |
| 360 | + g.drawRect(currentLoc.x, currentLoc.y, | |
| 361 | + f.getWidth()-1, f.getHeight()-1); | |
| 362 | + } | |
| 363 | + g.drawRect( newX, newY, f.getWidth()-1, f.getHeight()-1); | |
| 364 | + /* Work around for 6635462: XOR mode may cause a SurfaceLost on first use. | |
| 365 | + * Swing doesn't expect that its XOR drawRect did | |
| 366 | + * not complete, so believes that on re-entering at | |
| 367 | + * the next update location, that there is an XOR rect | |
| 368 | + * to draw out at "currentLoc". But in fact | |
| 369 | + * its now got a new clean surface without that rect, | |
| 370 | + * so drawing it "out" in fact draws it on, leaving garbage. | |
| 371 | + * So only update/set currentLoc if the draw completed. | |
| 372 | + */ | |
| 373 | + sun.java2d.SurfaceData sData = | |
| 374 | + ((sun.java2d.SunGraphics2D)g).getSurfaceData(); | |
| 375 | + | |
| 376 | + if (!sData.isSurfaceLost()) { | |
| 377 | + currentLoc = new Point (newX, newY); | |
| 378 | + } | |
| 379 | +; | |
| 380 | + g.dispose(); | |
| 381 | + } | |
| 382 | + } else if (dragMode == FASTER_DRAG_MODE) { | |
| 383 | + dragFrameFaster(f, newX, newY); | |
| 384 | + } else { | |
| 385 | + setBoundsForFrame(f, newX, newY, f.getWidth(), f.getHeight()); | |
| 386 | + } | |
| 387 | + } | |
| 388 | + | |
| 389 | + // implements javax.swing.DesktopManager | |
| 390 | + public void endDraggingFrame(JComponent f) { | |
| 391 | + if ( dragMode == OUTLINE_DRAG_MODE && currentLoc != null) { | |
| 392 | + setBoundsForFrame(f, currentLoc.x, currentLoc.y, f.getWidth(), f.getHeight() ); | |
| 393 | + currentLoc = null; | |
| 394 | + } else if (dragMode == FASTER_DRAG_MODE) { | |
| 395 | + currentBounds = null; | |
| 396 | + if (desktopGraphics != null) { | |
| 397 | + desktopGraphics.dispose(); | |
| 398 | + desktopGraphics = null; | |
| 399 | + } | |
| 400 | + desktopBounds = null; | |
| 401 | + ((JInternalFrame)f).isDragging = false; | |
| 402 | + } | |
| 403 | + } | |
| 404 | + | |
| 405 | + // implements javax.swing.DesktopManager | |
| 406 | + public void beginResizingFrame(JComponent f, int direction) { | |
| 407 | + setupDragMode(f); | |
| 408 | + } | |
| 409 | + | |
| 410 | + /** | |
| 411 | + * Calls <code>setBoundsForFrame</code> with the new values. | |
| 412 | + * @param f the component to be resized | |
| 413 | + * @param newX the new x-coordinate | |
| 414 | + * @param newY the new y-coordinate | |
| 415 | + * @param newWidth the new width | |
| 416 | + * @param newHeight the new height | |
| 417 | + */ | |
| 418 | + public void resizeFrame(JComponent f, int newX, int newY, int newWidth, int newHeight) { | |
| 419 | + | |
| 420 | + if ( dragMode == DEFAULT_DRAG_MODE || dragMode == FASTER_DRAG_MODE ) { | |
| 421 | + setBoundsForFrame(f, newX, newY, newWidth, newHeight); | |
| 422 | + } else { | |
| 423 | + JDesktopPane desktopPane = getDesktopPane(f); | |
| 424 | + if (desktopPane != null){ | |
| 425 | + Graphics g = JComponent.safelyGetGraphics(desktopPane); | |
| 426 | + | |
| 427 | + g.setXORMode(Color.white); | |
| 428 | + if (currentBounds != null) { | |
| 429 | + g.drawRect( currentBounds.x, currentBounds.y, currentBounds.width-1, currentBounds.height-1); | |
| 430 | + } | |
| 431 | + g.drawRect( newX, newY, newWidth-1, newHeight-1); | |
| 432 | + | |
| 433 | + // Work around for 6635462, see comment in dragFrame() | |
| 434 | + sun.java2d.SurfaceData sData = | |
| 435 | + ((sun.java2d.SunGraphics2D)g).getSurfaceData(); | |
| 436 | + if (!sData.isSurfaceLost()) { | |
| 437 | + currentBounds = new Rectangle (newX, newY, newWidth, newHeight); | |
| 438 | + } | |
| 439 | + | |
| 440 | + g.setPaintMode(); | |
| 441 | + g.dispose(); | |
| 442 | + } | |
| 443 | + } | |
| 444 | + | |
| 445 | + } | |
| 446 | + | |
| 447 | + // implements javax.swing.DesktopManager | |
| 448 | + public void endResizingFrame(JComponent f) { | |
| 449 | + if ( dragMode == OUTLINE_DRAG_MODE && currentBounds != null) { | |
| 450 | + setBoundsForFrame(f, currentBounds.x, currentBounds.y, currentBounds.width, currentBounds.height ); | |
| 451 | + currentBounds = null; | |
| 452 | + } | |
| 453 | + } | |
| 454 | + | |
| 455 | + | |
| 456 | + /** This moves the <code>JComponent</code> and repaints the damaged areas. */ | |
| 457 | + public void setBoundsForFrame(JComponent f, int newX, int newY, int newWidth, int newHeight) { | |
| 458 | + f.setBounds(newX, newY, newWidth, newHeight); | |
| 459 | + // we must validate the hierarchy to not break the hw/lw mixing | |
| 460 | + f.revalidate(); | |
| 461 | + } | |
| 462 | + | |
| 463 | + /** Convenience method to remove the desktopIcon of <b>f</b> is necessary. */ | |
| 464 | + protected void removeIconFor(JInternalFrame f) { | |
| 465 | + JInternalFrame.JDesktopIcon di = f.getDesktopIcon(); | |
| 466 | + Container c = di.getParent(); | |
| 467 | + if(c != null) { | |
| 468 | + c.remove(di); | |
| 469 | + c.repaint(di.getX(), di.getY(), di.getWidth(), di.getHeight()); | |
| 470 | + } | |
| 471 | + } | |
| 472 | + | |
| 473 | + /** The iconifyFrame() code calls this to determine the proper bounds | |
| 474 | + * for the desktopIcon. | |
| 475 | + */ | |
| 476 | + | |
| 477 | + protected Rectangle getBoundsForIconOf(JInternalFrame f) { | |
| 478 | + // | |
| 479 | + // Get the icon for this internal frame and its preferred size | |
| 480 | + // | |
| 481 | + | |
| 482 | + JInternalFrame.JDesktopIcon icon = f.getDesktopIcon(); | |
| 483 | + Dimension prefSize = icon.getPreferredSize(); | |
| 484 | + // | |
| 485 | + // Get the parent bounds and child components. | |
| 486 | + // | |
| 487 | + | |
| 488 | + Container c = f.getParent(); | |
| 489 | + if (c == null) { | |
| 490 | + c = f.getDesktopIcon().getParent(); | |
| 491 | + } | |
| 492 | + | |
| 493 | + if (c == null) { | |
| 494 | + /* the frame has not yet been added to the parent; how about (0,0) ?*/ | |
| 495 | + return new Rectangle(0, 0, prefSize.width, prefSize.height); | |
| 496 | + } | |
| 497 | + | |
| 498 | + Rectangle parentBounds = c.getBounds(); | |
| 499 | + Component [] components = c.getComponents(); | |
| 500 | + | |
| 501 | + | |
| 502 | + // | |
| 503 | + // Iterate through valid default icon locations and return the | |
| 504 | + // first one that does not intersect any other icons. | |
| 505 | + // | |
| 506 | + | |
| 507 | + Rectangle availableRectangle = null; | |
| 508 | + JInternalFrame.JDesktopIcon currentIcon = null; | |
| 509 | + | |
| 510 | + int x = 0; | |
| 511 | + int y = parentBounds.height - prefSize.height; | |
| 512 | + int w = prefSize.width; | |
| 513 | + int h = prefSize.height; | |
| 514 | + | |
| 515 | + boolean found = false; | |
| 516 | + | |
| 517 | + while (!found) { | |
| 518 | + | |
| 519 | + availableRectangle = new Rectangle(x,y,w,h); | |
| 520 | + | |
| 521 | + found = true; | |
| 522 | + | |
| 523 | + for ( int i=0; i<components.length; i++ ) { | |
| 524 | + | |
| 525 | + // | |
| 526 | + // Get the icon for this component | |
| 527 | + // | |
| 528 | + | |
| 529 | + if ( components[i] instanceof JInternalFrame ) { | |
| 530 | + currentIcon = ((JInternalFrame)components[i]).getDesktopIcon(); | |
| 531 | + } | |
| 532 | + else if ( components[i] instanceof JInternalFrame.JDesktopIcon ){ | |
| 533 | + currentIcon = (JInternalFrame.JDesktopIcon)components[i]; | |
| 534 | + } else | |
| 535 | + /* found a child that's neither an internal frame nor | |
| 536 | + an icon. I don't believe this should happen, but at | |
| 537 | + present it does and causes a null pointer exception. | |
| 538 | + Even when that gets fixed, this code protects against | |
| 539 | + the npe. hania */ | |
| 540 | + continue; | |
| 541 | + | |
| 542 | + // | |
| 543 | + // If this icon intersects the current location, get next location. | |
| 544 | + // | |
| 545 | + | |
| 546 | + if ( !currentIcon.equals(icon) ) { | |
| 547 | + if ( availableRectangle.intersects(currentIcon.getBounds()) ) { | |
| 548 | + found = false; | |
| 549 | + break; | |
| 550 | + } | |
| 551 | + } | |
| 552 | + } | |
| 553 | + | |
| 554 | + if (currentIcon == null) | |
| 555 | + /* didn't find any useful children above. This probably shouldn't | |
| 556 | + happen, but this check protects against an npe if it ever does | |
| 557 | + (and it's happening now) */ | |
| 558 | + return availableRectangle; | |
| 559 | + | |
| 560 | + x += currentIcon.getBounds().width; | |
| 561 | + | |
| 562 | + if ( x + w > parentBounds.width ) { | |
| 563 | + x = 0; | |
| 564 | + y -= h; | |
| 565 | + } | |
| 566 | + } | |
| 567 | + | |
| 568 | + return(availableRectangle); | |
| 569 | + } | |
| 570 | + | |
| 571 | + /** | |
| 572 | + * Stores the bounds of the component just before a maximize call. | |
| 573 | + * @param f the component about to be resized | |
| 574 | + * @param r the normal bounds to be saved away | |
| 575 | + */ | |
| 576 | + protected void setPreviousBounds(JInternalFrame f, Rectangle r) { | |
| 577 | + f.setNormalBounds(r); | |
| 578 | + } | |
| 579 | + | |
| 580 | + /** | |
| 581 | + * Gets the normal bounds of the component prior to the component | |
| 582 | + * being maximized. | |
| 583 | + * @param f the <code>JInternalFrame</code> of interest | |
| 584 | + * @return the normal bounds of the component | |
| 585 | + */ | |
| 586 | + protected Rectangle getPreviousBounds(JInternalFrame f) { | |
| 587 | + return f.getNormalBounds(); | |
| 588 | + } | |
| 589 | + | |
| 590 | + /** | |
| 591 | + * Sets that the component has been iconized and the bounds of the | |
| 592 | + * <code>desktopIcon</code> are valid. | |
| 593 | + */ | |
| 594 | + protected void setWasIcon(JInternalFrame f, Boolean value) { | |
| 595 | + if (value != null) { | |
| 596 | + f.putClientProperty(HAS_BEEN_ICONIFIED_PROPERTY, value); | |
| 597 | + } | |
| 598 | + } | |
| 599 | + | |
| 600 | + /** | |
| 601 | + * Returns <code>true</code> if the component has been iconized | |
| 602 | + * and the bounds of the <code>desktopIcon</code> are valid, | |
| 603 | + * otherwise returns <code>false</code>. | |
| 604 | + * | |
| 605 | + * @param f the <code>JInternalFrame</code> of interest | |
| 606 | + * @return <code>true</code> if the component has been iconized; | |
| 607 | + * otherwise returns <code>false</code> | |
| 608 | + */ | |
| 609 | + protected boolean wasIcon(JInternalFrame f) { | |
| 610 | + return (f.getClientProperty(HAS_BEEN_ICONIFIED_PROPERTY) == Boolean.TRUE); | |
| 611 | + } | |
| 612 | + | |
| 613 | + | |
| 614 | + JDesktopPane getDesktopPane( JComponent frame ) { | |
| 615 | + JDesktopPane pane = null; | |
| 616 | + Component c = frame.getParent(); | |
| 617 | + | |
| 618 | + // Find the JDesktopPane | |
| 619 | + while ( pane == null ) { | |
| 620 | + if ( c instanceof JDesktopPane ) { | |
| 621 | + pane = (JDesktopPane)c; | |
| 622 | + } | |
| 623 | + else if ( c == null ) { | |
| 624 | + break; | |
| 625 | + } | |
| 626 | + else { | |
| 627 | + c = c.getParent(); | |
| 628 | + } | |
| 629 | + } | |
| 630 | + | |
| 631 | + return pane; | |
| 632 | + } | |
| 633 | + | |
| 634 | + | |
| 635 | + // =========== stuff for faster frame dragging =================== | |
| 636 | + | |
| 637 | + private void dragFrameFaster(JComponent f, int newX, int newY) { | |
| 638 | + | |
| 639 | + Rectangle previousBounds = new Rectangle(currentBounds.x, | |
| 640 | + currentBounds.y, | |
| 641 | + currentBounds.width, | |
| 642 | + currentBounds.height); | |
| 643 | + | |
| 644 | + // move the frame | |
| 645 | + currentBounds.x = newX; | |
| 646 | + currentBounds.y = newY; | |
| 647 | + | |
| 648 | + if (didDrag) { | |
| 649 | + // Only initiate cleanup if we have actually done a drag. | |
| 650 | + emergencyCleanup(f); | |
| 651 | + } | |
| 652 | + else { | |
| 653 | + didDrag = true; | |
| 654 | + // We reset the danger field as until now we haven't actually | |
| 655 | + // moved the internal frame so we don't need to initiate repaint. | |
| 656 | + ((JInternalFrame)f).danger = false; | |
| 657 | + } | |
| 658 | + | |
| 659 | + boolean floaterCollision = isFloaterCollision(previousBounds, currentBounds); | |
| 660 | + | |
| 661 | + JComponent parent = (JComponent)f.getParent(); | |
| 662 | + Rectangle visBounds = previousBounds.intersection(desktopBounds); | |
| 663 | + | |
| 664 | + RepaintManager currentManager = RepaintManager.currentManager(f); | |
| 665 | + | |
| 666 | + currentManager.beginPaint(); | |
| 667 | + try { | |
| 668 | + if(!floaterCollision) { | |
| 669 | + currentManager.copyArea(parent, desktopGraphics, visBounds.x, | |
| 670 | + visBounds.y, | |
| 671 | + visBounds.width, | |
| 672 | + visBounds.height, | |
| 673 | + newX - previousBounds.x, | |
| 674 | + newY - previousBounds.y, | |
| 675 | + true); | |
| 676 | + } | |
| 677 | + | |
| 678 | + f.setBounds(currentBounds); | |
| 679 | + | |
| 680 | + if(floaterCollision) { | |
| 681 | + // since we couldn't blit we just redraw as fast as possible | |
| 682 | + // the isDragging mucking is to avoid activating emergency | |
| 683 | + // cleanup | |
| 684 | + ((JInternalFrame)f).isDragging = false; | |
| 685 | + parent.paintImmediately(currentBounds); | |
| 686 | + ((JInternalFrame)f).isDragging = true; | |
| 687 | + } | |
| 688 | + | |
| 689 | + // fake out the repaint manager. We'll take care of everything | |
| 690 | + | |
| 691 | + currentManager.markCompletelyClean(parent); | |
| 692 | + currentManager.markCompletelyClean(f); | |
| 693 | + | |
| 694 | + // compute the minimal newly exposed area | |
| 695 | + // if the rects intersect then we use computeDifference. Otherwise | |
| 696 | + // we'll repaint the entire previous bounds | |
| 697 | + Rectangle[] dirtyRects = null; | |
| 698 | + if ( previousBounds.intersects(currentBounds) ) { | |
| 699 | + dirtyRects = SwingUtilities.computeDifference(previousBounds, | |
| 700 | + currentBounds); | |
| 701 | + } else { | |
| 702 | + dirtyRects = new Rectangle[1]; | |
| 703 | + dirtyRects[0] = previousBounds; | |
| 704 | + }; | |
| 705 | + | |
| 706 | + // Fix the damage | |
| 707 | + for (int i = 0; i < dirtyRects.length; i++) { | |
| 708 | + parent.paintImmediately(dirtyRects[i]); | |
| 709 | + } | |
| 710 | + | |
| 711 | + // new areas of blit were exposed | |
| 712 | + if ( !(visBounds.equals(previousBounds)) ) { | |
| 713 | + dirtyRects = SwingUtilities.computeDifference(previousBounds, | |
| 714 | + desktopBounds); | |
| 715 | + for (int i = 0; i < dirtyRects.length; i++) { | |
| 716 | + dirtyRects[i].x += newX - previousBounds.x; | |
| 717 | + dirtyRects[i].y += newY - previousBounds.y; | |
| 718 | + ((JInternalFrame)f).isDragging = false; | |
| 719 | + | |
| 720 | + parent.paintImmediately(dirtyRects[i]); | |
| 721 | + ((JInternalFrame)f).isDragging = true; | |
| 722 | + } | |
| 723 | + | |
| 724 | + } | |
| 725 | + } finally { | |
| 726 | + currentManager.endPaint(); | |
| 727 | + } | |
| 728 | + | |
| 729 | + // update window if it's non-opaque | |
| 730 | + Window topLevel = SwingUtilities.getWindowAncestor(f); | |
| 731 | + Toolkit tk = Toolkit.getDefaultToolkit(); | |
| 732 | + if (!topLevel.isOpaque() && | |
| 733 | + (tk instanceof SunToolkit) && | |
| 734 | + ((SunToolkit)tk).needUpdateWindow()) | |
| 735 | + { | |
| 736 | + AWTAccessor.getWindowAccessor().updateWindow(topLevel); | |
| 737 | + } | |
| 738 | + } | |
| 739 | + | |
| 740 | + private boolean isFloaterCollision(Rectangle moveFrom, Rectangle moveTo) { | |
| 741 | + if (floatingItems.length == 0) { | |
| 742 | + // System.out.println("no floaters"); | |
| 743 | + return false; | |
| 744 | + } | |
| 745 | + | |
| 746 | + for (int i = 0; i < floatingItems.length; i++) { | |
| 747 | + boolean intersectsFrom = moveFrom.intersects(floatingItems[i]); | |
| 748 | + if (intersectsFrom) { | |
| 749 | + return true; | |
| 750 | + } | |
| 751 | + boolean intersectsTo = moveTo.intersects(floatingItems[i]); | |
| 752 | + if (intersectsTo) { | |
| 753 | + return true; | |
| 754 | + } | |
| 755 | + } | |
| 756 | + | |
| 757 | + return false; | |
| 758 | + } | |
| 759 | + | |
| 760 | + private Rectangle[] findFloatingItems(JComponent f) { | |
| 761 | + Container desktop = f.getParent(); | |
| 762 | + Component[] children = desktop.getComponents(); | |
| 763 | + int i = 0; | |
| 764 | + for (i = 0; i < children.length; i++) { | |
| 765 | + if (children[i] == f) { | |
| 766 | + break; | |
| 767 | + } | |
| 768 | + } | |
| 769 | + // System.out.println(i); | |
| 770 | + Rectangle[] floaters = new Rectangle[i]; | |
| 771 | + for (i = 0; i < floaters.length; i++) { | |
| 772 | + floaters[i] = children[i].getBounds(); | |
| 773 | + } | |
| 774 | + | |
| 775 | + return floaters; | |
| 776 | + } | |
| 777 | + | |
| 778 | + /** | |
| 779 | + * This method is here to clean up problems associated | |
| 780 | + * with a race condition which can occur when the full contents | |
| 781 | + * of a copyArea's source argument is not available onscreen. | |
| 782 | + * This uses brute force to clean up in case of possible damage | |
| 783 | + */ | |
| 784 | + private void emergencyCleanup(final JComponent f) { | |
| 785 | + | |
| 786 | + if ( ((JInternalFrame)f).danger ) { | |
| 787 | + | |
| 788 | + SwingUtilities.invokeLater( new Runnable(){ | |
| 789 | + public void run(){ | |
| 790 | + | |
| 791 | + ((JInternalFrame)f).isDragging = false; | |
| 792 | + f.paintImmediately(0,0, | |
| 793 | + f.getWidth(), | |
| 794 | + f.getHeight()); | |
| 795 | + | |
| 796 | + //finalFrame.repaint(); | |
| 797 | + ((JInternalFrame)f).isDragging = true; | |
| 798 | + // System.out.println("repair complete"); | |
| 799 | + }}); | |
| 800 | + | |
| 801 | + ((JInternalFrame)f).danger = false; | |
| 802 | + } | |
| 803 | + | |
| 804 | + } | |
| 805 | + | |
| 806 | + | |
| 807 | +} | |