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| 1 /* | |
| 2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "config.h" | |
| 27 #include "FrameWin.h" | |
| 28 | |
| 29 #include "BitmapInfo.h" | |
| 30 #include "Frame.h" | |
| 31 #include "FrameView.h" | |
| 32 #include "GraphicsContextCG.h" | |
| 33 #include "RenderObject.h" | |
| 34 #include "Settings.h" | |
| 35 #include <CoreGraphics/CoreGraphics.h> | |
| 36 #include <windows.h> | |
| 37 | |
| 38 namespace WebCore { | |
| 39 | |
| 40 static void drawRectIntoContext(IntRect rect, FrameView* view, GraphicsContext*
gc) | |
| 41 { | |
| 42 IntSize offset = view->scrollOffset(); | |
| 43 rect.move(-offset.width(), -offset.height()); | |
| 44 rect = view->convertToContainingWindow(rect); | |
| 45 | |
| 46 gc->concatCTM(AffineTransform().translate(-rect.x(), -rect.y())); | |
| 47 | |
| 48 view->paint(gc, rect); | |
| 49 } | |
| 50 | |
| 51 static HBITMAP imageFromRect(const Frame* frame, IntRect& ir) | |
| 52 { | |
| 53 PaintBehavior oldPaintBehavior = frame->view()->paintBehavior(); | |
| 54 frame->view()->setPaintBehavior(oldPaintBehavior | PaintBehaviorFlattenCompo
sitingLayers); | |
| 55 | |
| 56 void* bits; | |
| 57 HDC hdc = CreateCompatibleDC(0); | |
| 58 int w = ir.width(); | |
| 59 int h = ir.height(); | |
| 60 BitmapInfo bmp = BitmapInfo::create(IntSize(w, h)); | |
| 61 | |
| 62 HBITMAP hbmp = CreateDIBSection(0, &bmp, DIB_RGB_COLORS, static_cast<void**>
(&bits), 0, 0); | |
| 63 HBITMAP hbmpOld = static_cast<HBITMAP>(SelectObject(hdc, hbmp)); | |
| 64 CGContextRef context = CGBitmapContextCreate(static_cast<void*>(bits), w, h, | |
| 65 8, w * sizeof(RGBQUAD), deviceRGBColorSpaceRef(), kCGBitmapByteOrder32Li
ttle | kCGImageAlphaPremultipliedFirst); | |
| 66 CGContextSaveGState(context); | |
| 67 | |
| 68 GraphicsContext gc(context); | |
| 69 | |
| 70 drawRectIntoContext(ir, frame->view(), &gc); | |
| 71 | |
| 72 CGContextRelease(context); | |
| 73 SelectObject(hdc, hbmpOld); | |
| 74 DeleteDC(hdc); | |
| 75 | |
| 76 frame->view()->setPaintBehavior(oldPaintBehavior); | |
| 77 | |
| 78 return hbmp; | |
| 79 } | |
| 80 | |
| 81 HBITMAP imageFromSelection(Frame* frame, bool forceBlackText) | |
| 82 { | |
| 83 frame->document()->updateLayout(); | |
| 84 | |
| 85 frame->view()->setPaintBehavior(PaintBehaviorSelectionOnly | (forceBlackText
? PaintBehaviorForceBlackText : 0)); | |
| 86 FloatRect fr = frame->selection()->bounds(); | |
| 87 IntRect ir(static_cast<int>(fr.x()), static_cast<int>(fr.y()), | |
| 88 static_cast<int>(fr.width()), static_cast<int>(fr.height())); | |
| 89 HBITMAP image = imageFromRect(frame, ir); | |
| 90 frame->view()->setPaintBehavior(PaintBehaviorNormal); | |
| 91 return image; | |
| 92 } | |
| 93 | |
| 94 DragImageRef Frame::nodeImage(Node* node) | |
| 95 { | |
| 96 document()->updateLayout(); | |
| 97 | |
| 98 RenderObject* renderer = node->renderer(); | |
| 99 if (!renderer) | |
| 100 return 0; | |
| 101 | |
| 102 LayoutRect topLevelRect; | |
| 103 IntRect paintingRect = pixelSnappedIntRect(renderer->paintingRootRect(topLev
elRect)); | |
| 104 | |
| 105 m_view->setNodeToDraw(node); // invoke special sub-tree drawing mode | |
| 106 HBITMAP result = imageFromRect(this, paintingRect); | |
| 107 m_view->setNodeToDraw(0); | |
| 108 | |
| 109 return result; | |
| 110 } | |
| 111 | |
| 112 } // namespace WebCore | |
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Chromium Code Reviews
Issue 13642009:
WebCore: Remove PLATFORM(WIN) files we do not use. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk