diff -r 000000000000 -r 4f2f89ce4247 WebCore/page/win/FrameCGWin.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WebCore/page/win/FrameCGWin.cpp Fri Sep 17 09:02:29 2010 +0300 @@ -0,0 +1,116 @@ +/* + * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "FrameWin.h" + +#include + +#include "BitmapInfo.h" +#include "FrameView.h" +#include "GraphicsContext.h" +#include "Settings.h" + +#include + +using std::min; + +namespace WebCore { + +static void drawRectIntoContext(IntRect rect, FrameView* view, GraphicsContext* gc) +{ + IntSize offset = view->scrollOffset(); + rect.move(-offset.width(), -offset.height()); + rect = view->convertToContainingWindow(rect); + + gc->concatCTM(AffineTransform().translate(-rect.x(), -rect.y())); + + view->paint(gc, rect); +} + +static HBITMAP imageFromRect(const Frame* frame, IntRect& ir) +{ + PaintBehavior oldPaintBehavior = frame->view()->paintBehavior(); + frame->view()->setPaintBehavior(oldPaintBehavior | PaintBehaviorFlattenCompositingLayers); + + void* bits; + HDC hdc = CreateCompatibleDC(0); + int w = ir.width(); + int h = ir.height(); + BitmapInfo bmp = BitmapInfo::create(IntSize(w, h)); + + HBITMAP hbmp = CreateDIBSection(0, &bmp, DIB_RGB_COLORS, static_cast(&bits), 0, 0); + HBITMAP hbmpOld = static_cast(SelectObject(hdc, hbmp)); + CGColorSpaceRef deviceRGB = CGColorSpaceCreateDeviceRGB(); + CGContextRef context = CGBitmapContextCreate(static_cast(bits), w, h, + 8, w * sizeof(RGBQUAD), deviceRGB, kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst); + CGColorSpaceRelease(deviceRGB); + CGContextSaveGState(context); + + GraphicsContext gc(context); + + drawRectIntoContext(ir, frame->view(), &gc); + + CGContextRelease(context); + SelectObject(hdc, hbmpOld); + DeleteDC(hdc); + + frame->view()->setPaintBehavior(oldPaintBehavior); + + return hbmp; +} + +HBITMAP imageFromSelection(Frame* frame, bool forceBlackText) +{ + frame->document()->updateLayout(); + + frame->view()->setPaintBehavior(PaintBehaviorSelectionOnly | (forceBlackText ? PaintBehaviorForceBlackText : 0)); + FloatRect fr = frame->selectionBounds(); + IntRect ir(static_cast(fr.x()), static_cast(fr.y()), + static_cast(fr.width()), static_cast(fr.height())); + HBITMAP image = imageFromRect(frame, ir); + frame->view()->setPaintBehavior(PaintBehaviorNormal); + return image; +} + +HBITMAP Frame::nodeImage(Node* node) const +{ + RenderObject* renderer = node->renderer(); + if (!renderer) + return 0; + + IntRect topLevelRect; + IntRect paintingRect = renderer->paintingRootRect(topLevelRect); + + document()->updateLayout(); + + m_view->setNodeToDraw(node); // invoke special sub-tree drawing mode + HBITMAP result = imageFromRect(this, paintingRect); + m_view->setNodeToDraw(0); + + return result; +} + +} // namespace WebCore