1 /* 2 * Copyright (c) 1996, 2020, 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 package sun.awt.windows; 26 27 import java.awt.AWTEvent; 28 import java.awt.AWTException; 29 import java.awt.BufferCapabilities; 30 import java.awt.Color; 31 import java.awt.Component; 32 import java.awt.Container; 33 import java.awt.Dimension; 34 import java.awt.Font; 35 import java.awt.FontMetrics; 36 import java.awt.Graphics; 37 import java.awt.GraphicsConfiguration; 38 import java.awt.GraphicsDevice; 39 import java.awt.Image; 40 import java.awt.Point; 41 import java.awt.Rectangle; 42 import java.awt.SystemColor; 43 import java.awt.Window; 44 import java.awt.dnd.DropTarget; 45 import java.awt.dnd.peer.DropTargetPeer; 46 import java.awt.event.FocusEvent; 47 import java.awt.event.InputEvent; 48 import java.awt.event.InvocationEvent; 49 import java.awt.event.KeyEvent; 50 import java.awt.event.MouseEvent; 51 import java.awt.event.MouseWheelEvent; 52 import java.awt.event.PaintEvent; 53 import java.awt.geom.AffineTransform; 54 import java.awt.image.BufferedImage; 55 import java.awt.image.ColorModel; 56 import java.awt.image.VolatileImage; 57 import java.awt.peer.ComponentPeer; 58 import java.awt.peer.ContainerPeer; 59 60 import sun.awt.AWTAccessor; 61 import sun.awt.PaintEventDispatcher; 62 import sun.awt.RepaintArea; 63 import sun.awt.SunToolkit; 64 import sun.awt.Win32GraphicsConfig; 65 import sun.awt.Win32GraphicsEnvironment; 66 import sun.awt.event.IgnorePaintEvent; 67 import sun.awt.image.SunVolatileImage; 68 import sun.java2d.InvalidPipeException; 69 import sun.java2d.ScreenUpdateManager; 70 import sun.java2d.SurfaceData; 71 import sun.java2d.d3d.D3DSurfaceData; 72 import sun.java2d.opengl.OGLSurfaceData; 73 import sun.java2d.pipe.Region; 74 import sun.util.logging.PlatformLogger; 75 76 public abstract class WComponentPeer extends WObjectPeer 77 implements ComponentPeer, DropTargetPeer 78 { 79 /** 80 * Handle to native window 81 */ 82 protected volatile long hwnd; 83 84 private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.windows.WComponentPeer"); 85 private static final PlatformLogger shapeLog = PlatformLogger.getLogger("sun.awt.windows.shape.WComponentPeer"); 86 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.awt.windows.focus.WComponentPeer"); 87 88 // ComponentPeer implementation 89 SurfaceData surfaceData; 90 91 private RepaintArea paintArea; 92 93 protected Win32GraphicsConfig winGraphicsConfig; 94 95 boolean isLayouting = false; 96 boolean paintPending = false; 97 int oldWidth = -1; 98 int oldHeight = -1; 99 private int numBackBuffers = 0; 100 private VolatileImage backBuffer = null; 101 private BufferCapabilities backBufferCaps = null; 102 103 // foreground, background and color are cached to avoid calling back 104 // into the Component. 105 private Color foreground; 106 private Color background; 107 private Font font; 108 109 @Override 110 public native boolean isObscured(); 111 @Override 112 public boolean canDetermineObscurity() { return true; } 113 114 // DropTarget support 115 116 int nDropTargets; 117 long nativeDropTargetContext; // native pointer 118 119 private synchronized native void pShow(); 120 synchronized native void hide(); 121 synchronized native void enable(); 122 synchronized native void disable(); 123 124 public long getHWnd() { 125 return hwnd; 126 } 127 128 /* New 1.1 API */ 129 @Override 130 public native Point getLocationOnScreen(); 131 132 /* New 1.1 API */ 133 @Override 134 public void setVisible(boolean b) { 135 if (b) { 136 show(); 137 } else { 138 hide(); 139 } 140 } 141 142 public void show() { 143 Dimension s = ((Component)target).getSize(); 144 oldHeight = s.height; 145 oldWidth = s.width; 146 pShow(); 147 } 148 149 /* New 1.1 API */ 150 @Override 151 public void setEnabled(boolean b) { 152 if (b) { 153 enable(); 154 } else { 155 disable(); 156 } 157 } 158 159 public int serialNum = 0; 160 161 private native void reshapeNoCheck(int x, int y, int width, int height); 162 163 /* New 1.1 API */ 164 @Override 165 public void setBounds(int x, int y, int width, int height, int op) { 166 // Should set paintPending before reahape to prevent 167 // thread race between paint events 168 // Native components do redraw after resize 169 paintPending = (width != oldWidth) || (height != oldHeight); 170 171 if ( (op & NO_EMBEDDED_CHECK) != 0 ) { 172 reshapeNoCheck(x, y, width, height); 173 } else { 174 reshape(x, y, width, height); 175 } 176 if ((width != oldWidth) || (height != oldHeight)) { 177 // Only recreate surfaceData if this setBounds is called 178 // for a resize; a simple move should not trigger a recreation 179 try { 180 replaceSurfaceData(); 181 } catch (InvalidPipeException e) { 182 // REMIND : what do we do if our surface creation failed? 183 } 184 oldWidth = width; 185 oldHeight = height; 186 } 187 188 serialNum++; 189 } 190 191 /* 192 * Called from native code (on Toolkit thread) in order to 193 * dynamically layout the Container during resizing 194 */ 195 void dynamicallyLayoutContainer() { 196 // If we got the WM_SIZING, this must be a Container, right? 197 // In fact, it must be the top-level Container. 198 if (log.isLoggable(PlatformLogger.Level.FINE)) { 199 Container parent = WToolkit.getNativeContainer((Component)target); 200 if (parent != null) { 201 log.fine("Assertion (parent == null) failed"); 202 } 203 } 204 final Container cont = (Container)target; 205 206 WToolkit.executeOnEventHandlerThread(cont, new Runnable() { 207 @Override 208 public void run() { 209 // Discarding old paint events doesn't seem to be necessary. 210 cont.invalidate(); 211 cont.validate(); 212 213 if (surfaceData instanceof D3DSurfaceData.D3DWindowSurfaceData || 214 surfaceData instanceof OGLSurfaceData) 215 { 216 // When OGL or D3D is enabled, it is necessary to 217 // replace the SurfaceData for each dynamic layout 218 // request so that the viewport stays in sync 219 // with the window bounds. 220 try { 221 replaceSurfaceData(); 222 } catch (InvalidPipeException e) { 223 // REMIND: this is unlikely to occur for OGL, but 224 // what do we do if surface creation fails? 225 } 226 } 227 228 // Forcing a paint here doesn't seem to be necessary. 229 // paintDamagedAreaImmediately(); 230 } 231 }); 232 } 233 234 /* 235 * Paints any portion of the component that needs updating 236 * before the call returns (similar to the Win32 API UpdateWindow) 237 */ 238 void paintDamagedAreaImmediately() { 239 // force Windows to send any pending WM_PAINT events so 240 // the damage area is updated on the Java side 241 updateWindow(); 242 // make sure paint events are transferred to main event queue 243 // for coalescing 244 SunToolkit.flushPendingEvents(); 245 // paint the damaged area 246 paintArea.paint(target, shouldClearRectBeforePaint()); 247 } 248 249 synchronized native void updateWindow(); 250 251 @Override 252 public void paint(Graphics g) { 253 ((Component)target).paint(g); 254 } 255 256 public void repaint(long tm, int x, int y, int width, int height) { 257 } 258 259 private static final double BANDING_DIVISOR = 4.0; 260 private native int[] createPrintedPixels(int srcX, int srcY, 261 int srcW, int srcH, 262 int alpha); 263 @Override 264 public void print(Graphics g) { 265 266 Component comp = (Component)target; 267 268 // To conserve memory usage, we will band the image. 269 270 int totalW = comp.getWidth(); 271 int totalH = comp.getHeight(); 272 273 int hInc = (int)(totalH / BANDING_DIVISOR); 274 if (hInc == 0) { 275 hInc = totalH; 276 } 277 278 for (int startY = 0; startY < totalH; startY += hInc) { 279 int endY = startY + hInc - 1; 280 if (endY >= totalH) { 281 endY = totalH - 1; 282 } 283 int h = endY - startY + 1; 284 285 Color bgColor = comp.getBackground(); 286 int[] pix = createPrintedPixels(0, startY, totalW, h, 287 bgColor == null ? 255 : bgColor.getAlpha()); 288 if (pix != null) { 289 BufferedImage bim = new BufferedImage(totalW, h, 290 BufferedImage.TYPE_INT_ARGB); 291 bim.setRGB(0, 0, totalW, h, pix, 0, totalW); 292 g.drawImage(bim, 0, startY, null); 293 bim.flush(); 294 } 295 } 296 297 comp.print(g); 298 } 299 300 @Override 301 public void coalescePaintEvent(PaintEvent e) { 302 Rectangle r = e.getUpdateRect(); 303 if (!(e instanceof IgnorePaintEvent)) { 304 paintArea.add(r, e.getID()); 305 } 306 307 if (log.isLoggable(PlatformLogger.Level.FINEST)) { 308 switch(e.getID()) { 309 case PaintEvent.UPDATE: 310 log.finest("coalescePaintEvent: UPDATE: add: x = " + 311 r.x + ", y = " + r.y + ", width = " + r.width + ", height = " + r.height); 312 return; 313 case PaintEvent.PAINT: 314 log.finest("coalescePaintEvent: PAINT: add: x = " + 315 r.x + ", y = " + r.y + ", width = " + r.width + ", height = " + r.height); 316 return; 317 } 318 } 319 } 320 321 public synchronized native void reshape(int x, int y, int width, int height); 322 323 // returns true if the event has been handled and shouldn't be propagated 324 // though handleEvent method chain - e.g. WTextFieldPeer returns true 325 // on handling '\n' to prevent it from being passed to native code 326 public boolean handleJavaKeyEvent(KeyEvent e) { return false; } 327 328 public void handleJavaMouseEvent(MouseEvent e) { 329 switch (e.getID()) { 330 case MouseEvent.MOUSE_PRESSED: 331 // Note that Swing requests focus in its own mouse event handler. 332 if (target == e.getSource() && 333 !((Component)target).isFocusOwner() && 334 WKeyboardFocusManagerPeer.shouldFocusOnClick((Component)target)) 335 { 336 WKeyboardFocusManagerPeer.requestFocusFor((Component)target, 337 FocusEvent.Cause.MOUSE_EVENT); 338 } 339 break; 340 } 341 } 342 343 native void nativeHandleEvent(AWTEvent e); 344 345 @Override 346 @SuppressWarnings("fallthrough") 347 public void handleEvent(AWTEvent e) { 348 int id = e.getID(); 349 350 if ((e instanceof InputEvent) && !((InputEvent)e).isConsumed() && 351 ((Component)target).isEnabled()) 352 { 353 if (e instanceof MouseEvent && !(e instanceof MouseWheelEvent)) { 354 handleJavaMouseEvent((MouseEvent) e); 355 } else if (e instanceof KeyEvent) { 356 if (handleJavaKeyEvent((KeyEvent)e)) { 357 return; 358 } 359 } 360 } 361 362 switch(id) { 363 case PaintEvent.PAINT: 364 // Got native painting 365 paintPending = false; 366 // Fallthrough to next statement 367 case PaintEvent.UPDATE: 368 // Skip all painting while layouting and all UPDATEs 369 // while waiting for native paint 370 if (!isLayouting && ! paintPending) { 371 paintArea.paint(target,shouldClearRectBeforePaint()); 372 } 373 return; 374 case FocusEvent.FOCUS_LOST: 375 case FocusEvent.FOCUS_GAINED: 376 handleJavaFocusEvent((FocusEvent)e); 377 default: 378 break; 379 } 380 381 // Call the native code 382 nativeHandleEvent(e); 383 } 384 385 void handleJavaFocusEvent(FocusEvent fe) { 386 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) { 387 focusLog.finer(fe.toString()); 388 } 389 setFocus(fe.getID() == FocusEvent.FOCUS_GAINED); 390 } 391 392 native void setFocus(boolean doSetFocus); 393 394 @Override 395 public Dimension getMinimumSize() { 396 return ((Component)target).getSize(); 397 } 398 399 @Override 400 public Dimension getPreferredSize() { 401 return getMinimumSize(); 402 } 403 404 // Do nothing for heavyweight implementation 405 @Override 406 public void layout() {} 407 408 public Rectangle getBounds() { 409 return ((Component)target).getBounds(); 410 } 411 412 @Override 413 public boolean isFocusable() { 414 return false; 415 } 416 417 /* 418 * Return the GraphicsConfiguration associated with this peer, either 419 * the locally stored winGraphicsConfig, or that of the target Component. 420 */ 421 @Override 422 public GraphicsConfiguration getGraphicsConfiguration() { 423 if (winGraphicsConfig != null) { 424 return winGraphicsConfig; 425 } 426 else { 427 // we don't need a treelock here, since 428 // Component.getGraphicsConfiguration() gets it itself. 429 return ((Component)target).getGraphicsConfiguration(); 430 } 431 } 432 433 public SurfaceData getSurfaceData() { 434 return surfaceData; 435 } 436 437 /** 438 * Creates new surfaceData object and invalidates the previous 439 * surfaceData object. 440 * Replacing the surface data should never lock on any resources which are 441 * required by other threads which may have them and may require 442 * the tree-lock. 443 * This is a degenerate version of replaceSurfaceData(numBackBuffers), so 444 * just call that version with our current numBackBuffers. 445 */ 446 public void replaceSurfaceData() { 447 replaceSurfaceData(this.numBackBuffers, this.backBufferCaps); 448 } 449 450 public void createScreenSurface(boolean isResize) 451 { 452 Win32GraphicsConfig gc = (Win32GraphicsConfig)getGraphicsConfiguration(); 453 ScreenUpdateManager mgr = ScreenUpdateManager.getInstance(); 454 455 surfaceData = mgr.createScreenSurface(gc, this, numBackBuffers, isResize); 456 } 457 458 459 /** 460 * Multi-buffer version of replaceSurfaceData. This version is called 461 * by createBuffers(), which needs to acquire the same locks in the same 462 * order, but also needs to perform additional functions inside the 463 * locks. 464 */ 465 public void replaceSurfaceData(int newNumBackBuffers, 466 BufferCapabilities caps) 467 { 468 SurfaceData oldData = null; 469 VolatileImage oldBB = null; 470 synchronized(((Component)target).getTreeLock()) { 471 synchronized(this) { 472 if (pData == 0) { 473 return; 474 } 475 numBackBuffers = newNumBackBuffers; 476 ScreenUpdateManager mgr = ScreenUpdateManager.getInstance(); 477 oldData = surfaceData; 478 mgr.dropScreenSurface(oldData); 479 createScreenSurface(true); 480 if (oldData != null) { 481 oldData.invalidate(); 482 } 483 484 oldBB = backBuffer; 485 if (numBackBuffers > 0) { 486 // set the caps first, they're used when creating the bb 487 backBufferCaps = caps; 488 Win32GraphicsConfig gc = 489 (Win32GraphicsConfig)getGraphicsConfiguration(); 490 backBuffer = gc.createBackBuffer(this); 491 } else if (backBuffer != null) { 492 backBufferCaps = null; 493 backBuffer = null; 494 } 495 } 496 } 497 // it would be better to do this before we create new ones, 498 // but then we'd run into deadlock issues 499 if (oldData != null) { 500 oldData.flush(); 501 // null out the old data to make it collected faster 502 oldData = null; 503 } 504 if (oldBB != null) { 505 oldBB.flush(); 506 // null out the old data to make it collected faster 507 oldData = null; 508 } 509 } 510 511 public void replaceSurfaceDataLater() { 512 Runnable r = new Runnable() { 513 @Override 514 public void run() { 515 // Shouldn't do anything if object is disposed in meanwhile 516 // No need for sync as disposeAction in Window is performed 517 // on EDT 518 if (!isDisposed()) { 519 try { 520 replaceSurfaceData(); 521 } catch (InvalidPipeException e) { 522 // REMIND : what do we do if our surface creation failed? 523 } 524 } 525 } 526 }; 527 Component c = (Component)target; 528 // Fix 6255371. 529 if (!PaintEventDispatcher.getPaintEventDispatcher().queueSurfaceDataReplacing(c, r)) { 530 postEvent(new InvocationEvent(c, r)); 531 } 532 } 533 534 @Override 535 public boolean updateGraphicsData(GraphicsConfiguration gc) { 536 winGraphicsConfig = (Win32GraphicsConfig)gc; 537 try { 538 replaceSurfaceData(); 539 } catch (InvalidPipeException e) { 540 // REMIND : what do we do if our surface creation failed? 541 } 542 return false; 543 } 544 545 //This will return null for Components not yet added to a Container 546 @Override 547 public ColorModel getColorModel() { 548 GraphicsConfiguration gc = getGraphicsConfiguration(); 549 if (gc != null) { 550 return gc.getColorModel(); 551 } 552 else { 553 return null; 554 } 555 } 556 557 //This will return null for Components not yet added to a Container 558 public ColorModel getDeviceColorModel() { 559 Win32GraphicsConfig gc = 560 (Win32GraphicsConfig)getGraphicsConfiguration(); 561 if (gc != null) { 562 return gc.getDeviceColorModel(); 563 } 564 else { 565 return null; 566 } 567 } 568 569 //Returns null for Components not yet added to a Container 570 public ColorModel getColorModel(int transparency) { 571 // return WToolkit.config.getColorModel(transparency); 572 GraphicsConfiguration gc = getGraphicsConfiguration(); 573 if (gc != null) { 574 return gc.getColorModel(transparency); 575 } 576 else { 577 return null; 578 } 579 } 580 581 // fallback default font object 582 static final Font defaultFont = new Font(Font.DIALOG, Font.PLAIN, 12); 583 584 @Override 585 public Graphics getGraphics() { 586 if (isDisposed()) { 587 return null; 588 } 589 590 Component target = (Component)getTarget(); 591 Window window = SunToolkit.getContainingWindow(target); 592 if (window != null) { 593 final WWindowPeer wpeer = AWTAccessor.getComponentAccessor() 594 .getPeer(window); 595 if (wpeer != null) { 596 Graphics g = wpeer.getTranslucentGraphics(); 597 // getTranslucentGraphics() returns non-null value for non-opaque windows only 598 if (g != null) { 599 // Non-opaque windows do not support heavyweight children. 600 // Redirect all painting to the Window's Graphics instead. 601 // The caller is responsible for calling the 602 // WindowPeer.updateWindow() after painting has finished. 603 int x = 0, y = 0; 604 for (Component c = target; c != window; c = c.getParent()) { 605 x += c.getX(); 606 y += c.getY(); 607 } 608 609 g.translate(x, y); 610 g.clipRect(0, 0, target.getWidth(), target.getHeight()); 611 612 return g; 613 } 614 } 615 } 616 617 SurfaceData surfaceData = this.surfaceData; 618 if (surfaceData != null) { 619 /* Fix for bug 4746122. Color and Font shouldn't be null */ 620 Color bgColor = background; 621 if (bgColor == null) { 622 bgColor = SystemColor.window; 623 } 624 Color fgColor = foreground; 625 if (fgColor == null) { 626 fgColor = SystemColor.windowText; 627 } 628 Font font = this.font; 629 if (font == null) { 630 font = defaultFont; 631 } 632 ScreenUpdateManager mgr = 633 ScreenUpdateManager.getInstance(); 634 return mgr.createGraphics(surfaceData, this, fgColor, 635 bgColor, font); 636 } 637 return null; 638 } 639 @Override 640 public FontMetrics getFontMetrics(Font font) { 641 return WFontMetrics.getFontMetrics(font); 642 } 643 644 private synchronized native void _dispose(); 645 @Override 646 protected void disposeImpl() { 647 SurfaceData oldData = surfaceData; 648 surfaceData = null; 649 ScreenUpdateManager.getInstance().dropScreenSurface(oldData); 650 oldData.invalidate(); 651 // remove from updater before calling targetDisposedPeer 652 WToolkit.targetDisposedPeer(target, this); 653 _dispose(); 654 } 655 656 public void disposeLater() { 657 postEvent(new InvocationEvent(target, new Runnable() { 658 @Override 659 public void run() { 660 dispose(); 661 } 662 })); 663 } 664 665 @Override 666 public synchronized void setForeground(Color c) { 667 foreground = c; 668 _setForeground(c.getRGB()); 669 } 670 671 @Override 672 public synchronized void setBackground(Color c) { 673 background = c; 674 _setBackground(c.getRGB()); 675 } 676 677 /** 678 * This method is intentionally not synchronized as it is called while 679 * holding other locks. 680 * 681 * @see sun.java2d.d3d.D3DScreenUpdateManager#validate 682 */ 683 public Color getBackgroundNoSync() { 684 return background; 685 } 686 687 private native void _setForeground(int rgb); 688 private native void _setBackground(int rgb); 689 690 @Override 691 public synchronized void setFont(Font f) { 692 font = f; 693 _setFont(f); 694 } 695 synchronized native void _setFont(Font f); 696 @Override 697 public void updateCursorImmediately() { 698 WGlobalCursorManager.getCursorManager().updateCursorImmediately(); 699 } 700 701 // TODO: consider moving it to KeyboardFocusManagerPeerImpl 702 @Override 703 public boolean requestFocus(Component lightweightChild, boolean temporary, 704 boolean focusedWindowChangeAllowed, long time, 705 FocusEvent.Cause cause) 706 { 707 if (WKeyboardFocusManagerPeer. 708 processSynchronousLightweightTransfer((Component)target, lightweightChild, temporary, 709 focusedWindowChangeAllowed, time)) 710 { 711 return true; 712 } 713 714 int result = WKeyboardFocusManagerPeer 715 .shouldNativelyFocusHeavyweight((Component)target, lightweightChild, 716 temporary, focusedWindowChangeAllowed, 717 time, cause); 718 719 switch (result) { 720 case WKeyboardFocusManagerPeer.SNFH_FAILURE: 721 return false; 722 case WKeyboardFocusManagerPeer.SNFH_SUCCESS_PROCEED: 723 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) { 724 focusLog.finer("Proceeding with request to " + lightweightChild + " in " + target); 725 } 726 Window parentWindow = SunToolkit.getContainingWindow((Component)target); 727 if (parentWindow == null) { 728 return rejectFocusRequestHelper("WARNING: Parent window is null"); 729 } 730 final WWindowPeer wpeer = AWTAccessor.getComponentAccessor() 731 .getPeer(parentWindow); 732 if (wpeer == null) { 733 return rejectFocusRequestHelper("WARNING: Parent window's peer is null"); 734 } 735 boolean res = wpeer.requestWindowFocus(cause); 736 737 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) { 738 focusLog.finer("Requested window focus: " + res); 739 } 740 // If parent window can be made focused and has been made focused(synchronously) 741 // then we can proceed with children, otherwise we retreat. 742 if (!(res && parentWindow.isFocused())) { 743 return rejectFocusRequestHelper("Waiting for asynchronous processing of the request"); 744 } 745 return WKeyboardFocusManagerPeer.deliverFocus(lightweightChild, 746 (Component)target, 747 temporary, 748 focusedWindowChangeAllowed, 749 time, cause); 750 751 case WKeyboardFocusManagerPeer.SNFH_SUCCESS_HANDLED: 752 // Either lightweight or excessive request - all events are generated. 753 return true; 754 } 755 return false; 756 } 757 758 private boolean rejectFocusRequestHelper(String logMsg) { 759 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) { 760 focusLog.finer(logMsg); 761 } 762 WKeyboardFocusManagerPeer.removeLastFocusRequest((Component)target); 763 return false; 764 } 765 766 @Override 767 public Image createImage(int width, int height) { 768 Win32GraphicsConfig gc = 769 (Win32GraphicsConfig)getGraphicsConfiguration(); 770 return gc.createAcceleratedImage((Component)target, width, height); 771 } 772 773 @Override 774 public VolatileImage createVolatileImage(int width, int height) { 775 return new SunVolatileImage((Component)target, width, height); 776 } 777 778 // Object overrides 779 780 public String toString() { 781 return getClass().getName() + "[" + target + "]"; 782 } 783 784 // Toolkit & peer internals 785 786 private int updateX1, updateY1, updateX2, updateY2; 787 788 WComponentPeer(Component target) { 789 this.target = target; 790 this.paintArea = new RepaintArea(); 791 create(getNativeParent()); 792 // fix for 5088782: check if window object is created successfully 793 checkCreation(); 794 795 createScreenSurface(false); 796 initialize(); 797 start(); // Initialize enable/disable state, turn on callbacks 798 } 799 abstract void create(WComponentPeer parent); 800 801 /** 802 * Gets the native parent of this peer. We use the term "parent" explicitly, 803 * because we override the method in top-level window peer implementations. 804 * 805 * @return the parent container/owner of this peer. 806 */ 807 WComponentPeer getNativeParent() { 808 Container parent = SunToolkit.getNativeContainer((Component) target); 809 return (WComponentPeer) WToolkit.targetToPeer(parent); 810 } 811 812 protected void checkCreation() 813 { 814 if ((hwnd == 0) || (pData == 0)) 815 { 816 if (createError != null) 817 { 818 throw createError; 819 } 820 else 821 { 822 throw new InternalError("couldn't create component peer"); 823 } 824 } 825 } 826 827 synchronized native void start(); 828 829 void initialize() { 830 if (((Component)target).isVisible()) { 831 show(); // the wnd starts hidden 832 } 833 Color fg = ((Component)target).getForeground(); 834 if (fg != null) { 835 setForeground(fg); 836 } 837 // Set background color in C++, to avoid inheriting a parent's color. 838 Font f = ((Component)target).getFont(); 839 if (f != null) { 840 setFont(f); 841 } 842 if (! ((Component)target).isEnabled()) { 843 disable(); 844 } 845 Rectangle r = ((Component)target).getBounds(); 846 setBounds(r.x, r.y, r.width, r.height, SET_BOUNDS); 847 } 848 849 // Callbacks for window-system events to the frame 850 851 // Invoke a update() method call on the target 852 void handleRepaint(int x, int y, int w, int h) { 853 // Repaints are posted from updateClient now... 854 } 855 856 // Invoke a paint() method call on the target, after clearing the 857 // damaged area. 858 void handleExpose(int x, int y, int w, int h) { 859 // Bug ID 4081126 & 4129709 - can't do the clearRect() here, 860 // since it interferes with the java thread working in the 861 // same window on multi-processor NT machines. 862 863 postPaintIfNecessary(x, y, w, h); 864 } 865 866 /* Invoke a paint() method call on the target, without clearing the 867 * damaged area. This is normally called by a native control after 868 * it has painted itself. 869 * 870 * NOTE: This is called on the privileged toolkit thread. Do not 871 * call directly into user code using this thread! 872 */ 873 public void handlePaint(int x, int y, int w, int h) { 874 postPaintIfNecessary(x, y, w, h); 875 } 876 877 private void postPaintIfNecessary(int x, int y, int w, int h) { 878 if ( !AWTAccessor.getComponentAccessor().getIgnoreRepaint( (Component) target) ) { 879 PaintEvent event = PaintEventDispatcher.getPaintEventDispatcher(). 880 createPaintEvent((Component)target, x, y, w, h); 881 if (event != null) { 882 postEvent(event); 883 } 884 } 885 } 886 887 /* 888 * Post an event. Queue it for execution by the callback thread. 889 */ 890 void postEvent(AWTEvent event) { 891 preprocessPostEvent(event); 892 WToolkit.postEvent(WToolkit.targetToAppContext(target), event); 893 } 894 895 void preprocessPostEvent(AWTEvent event) {} 896 897 // Routines to support deferred window positioning. 898 public void beginLayout() { 899 // Skip all painting till endLayout 900 isLayouting = true; 901 } 902 903 public void endLayout() { 904 if(!paintArea.isEmpty() && !paintPending && 905 !((Component)target).getIgnoreRepaint()) { 906 // if not waiting for native painting repaint damaged area 907 postEvent(new PaintEvent((Component)target, PaintEvent.PAINT, 908 new Rectangle())); 909 } 910 isLayouting = false; 911 } 912 913 public native void beginValidate(); 914 public native void endValidate(); 915 916 /** 917 * register a DropTarget with this native peer 918 */ 919 920 @Override 921 public synchronized void addDropTarget(DropTarget dt) { 922 if (nDropTargets == 0) { 923 nativeDropTargetContext = addNativeDropTarget(); 924 } 925 nDropTargets++; 926 } 927 928 /** 929 * unregister a DropTarget with this native peer 930 */ 931 932 @Override 933 public synchronized void removeDropTarget(DropTarget dt) { 934 nDropTargets--; 935 if (nDropTargets == 0) { 936 removeNativeDropTarget(); 937 nativeDropTargetContext = 0; 938 } 939 } 940 941 /** 942 * add the native peer's AwtDropTarget COM object 943 * @return reference to AwtDropTarget object 944 */ 945 946 native long addNativeDropTarget(); 947 948 /** 949 * remove the native peer's AwtDropTarget COM object 950 */ 951 952 native void removeNativeDropTarget(); 953 native boolean nativeHandlesWheelScrolling(); 954 955 @Override 956 public boolean handlesWheelScrolling() { 957 // should this be cached? 958 return nativeHandlesWheelScrolling(); 959 } 960 961 // Returns true if we are inside begin/endLayout and 962 // are waiting for native painting 963 public boolean isPaintPending() { 964 return paintPending && isLayouting; 965 } 966 967 /** 968 * The following multibuffering-related methods delegate to our 969 * associated GraphicsConfig (Win or WGL) to handle the appropriate 970 * native windowing system specific actions. 971 */ 972 973 @Override 974 public void createBuffers(int numBuffers, BufferCapabilities caps) 975 throws AWTException 976 { 977 Win32GraphicsConfig gc = 978 (Win32GraphicsConfig)getGraphicsConfiguration(); 979 gc.assertOperationSupported((Component)target, numBuffers, caps); 980 981 // Re-create the primary surface with the new number of back buffers 982 try { 983 replaceSurfaceData(numBuffers - 1, caps); 984 } catch (InvalidPipeException e) { 985 throw new AWTException(e.getMessage()); 986 } 987 } 988 989 @Override 990 public void destroyBuffers() { 991 replaceSurfaceData(0, null); 992 } 993 994 @Override 995 public void flip(int x1, int y1, int x2, int y2, 996 BufferCapabilities.FlipContents flipAction) 997 { 998 VolatileImage backBuffer = this.backBuffer; 999 if (backBuffer == null) { 1000 throw new IllegalStateException("Buffers have not been created"); 1001 } 1002 Win32GraphicsConfig gc = 1003 (Win32GraphicsConfig)getGraphicsConfiguration(); 1004 gc.flip(this, (Component)target, backBuffer, x1, y1, x2, y2, flipAction); 1005 } 1006 1007 @Override 1008 public synchronized Image getBackBuffer() { 1009 Image backBuffer = this.backBuffer; 1010 if (backBuffer == null) { 1011 throw new IllegalStateException("Buffers have not been created"); 1012 } 1013 return backBuffer; 1014 } 1015 public BufferCapabilities getBackBufferCaps() { 1016 return backBufferCaps; 1017 } 1018 public int getBackBuffersNum() { 1019 return numBackBuffers; 1020 } 1021 1022 /* override and return false on components that DO NOT require 1023 a clearRect() before painting (i.e. native components) */ 1024 public boolean shouldClearRectBeforePaint() { 1025 return true; 1026 } 1027 1028 native void pSetParent(ComponentPeer newNativeParent); 1029 1030 /** 1031 * @see java.awt.peer.ComponentPeer#reparent 1032 */ 1033 @Override 1034 public void reparent(ContainerPeer newNativeParent) { 1035 pSetParent(newNativeParent); 1036 } 1037 1038 /** 1039 * @see java.awt.peer.ComponentPeer#isReparentSupported 1040 */ 1041 @Override 1042 public boolean isReparentSupported() { 1043 return true; 1044 } 1045 1046 public void setBoundsOperation(int operation) { 1047 } 1048 1049 private volatile boolean isAccelCapable = true; 1050 1051 /** 1052 * Returns whether this component is capable of being hw accelerated. 1053 * More specifically, whether rendering to this component or a 1054 * BufferStrategy's back-buffer for this component can be hw accelerated. 1055 * 1056 * Conditions which could prevent hw acceleration include the toplevel 1057 * window containing this component being 1058 * {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 1059 * PERPIXEL_TRANSLUCENT}. 1060 * 1061 * Another condition is if Xor paint mode was detected when rendering 1062 * to an on-screen accelerated surface associated with this peer. 1063 * in this case both on- and off-screen acceleration for this peer is 1064 * disabled. 1065 * 1066 * @return {@code true} if this component is capable of being hw 1067 * accelerated, {@code false} otherwise 1068 * @see GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 1069 */ 1070 public boolean isAccelCapable() { 1071 if (!isAccelCapable || 1072 !isContainingTopLevelAccelCapable((Component)target)) 1073 { 1074 return false; 1075 } 1076 1077 boolean isTranslucent = 1078 SunToolkit.isContainingTopLevelTranslucent((Component)target); 1079 // D3D/OGL and translucent windows interacted poorly in Windows XP; 1080 // these problems are no longer present in Vista 1081 return !isTranslucent || Win32GraphicsEnvironment.isVistaOS(); 1082 } 1083 1084 /** 1085 * Disables acceleration for this peer. 1086 */ 1087 public void disableAcceleration() { 1088 isAccelCapable = false; 1089 } 1090 1091 1092 native void setRectangularShape(int lox, int loy, int hix, int hiy, 1093 Region region); 1094 1095 1096 // REMIND: Temp workaround for issues with using HW acceleration 1097 // in the browser on Vista when DWM is enabled. 1098 // @return true if the toplevel container is not an EmbeddedFrame or 1099 // if this EmbeddedFrame is acceleration capable, false otherwise 1100 private static final boolean isContainingTopLevelAccelCapable(Component c) { 1101 while (c != null && !(c instanceof WEmbeddedFrame)) { 1102 c = c.getParent(); 1103 } 1104 if (c == null) { 1105 return true; 1106 } 1107 final WEmbeddedFramePeer peer = AWTAccessor.getComponentAccessor() 1108 .getPeer(c); 1109 return peer.isAccelCapable(); 1110 } 1111 1112 /** 1113 * Applies the shape to the native component window. 1114 * @since 1.7 1115 */ 1116 @Override 1117 public void applyShape(Region shape) { 1118 if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) { 1119 shapeLog.finer("*** INFO: Setting shape: PEER: " + this 1120 + "; TARGET: " + target 1121 + "; SHAPE: " + shape); 1122 } 1123 1124 if (shape != null) { 1125 AffineTransform tx = winGraphicsConfig.getDefaultTransform(); 1126 double scaleX = tx.getScaleX(); 1127 double scaleY = tx.getScaleY(); 1128 if (scaleX != 1 || scaleY != 1) { 1129 shape = shape.getScaledRegion(scaleX, scaleY); 1130 } 1131 setRectangularShape(shape.getLoX(), shape.getLoY(), shape.getHiX(), shape.getHiY(), 1132 (shape.isRectangular() ? null : shape)); 1133 } else { 1134 setRectangularShape(0, 0, 0, 0, null); 1135 } 1136 } 1137 1138 /** 1139 * Lowers this component at the bottom of the above component. If the above parameter 1140 * is null then the method places this component at the top of the Z-order. 1141 */ 1142 @Override 1143 public void setZOrder(ComponentPeer above) { 1144 long aboveHWND = (above != null) ? ((WComponentPeer)above).getHWnd() : 0; 1145 1146 setZOrder(aboveHWND); 1147 } 1148 1149 private native void setZOrder(long above); 1150 1151 public boolean isLightweightFramePeer() { 1152 return false; 1153 } 1154 }