/*

* Copyright (C) 2006, 2007, 2008, 2013 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 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 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"

#if USE(CG)

#include "BitmapInfo.h"

#include "Frame.h"

#include "FrameSelection.h"

#include "FrameView.h"

#include "GraphicsContextCG.h"

#include "RenderObject.h"

#include "Settings.h"

#include <CoreGraphics/CoreGraphics.h>

#include <windows.h>

#include <wtf/win/GDIObject.h>

namespace WebCore {

static void drawRectIntoContext(IntRect rect, FrameView* view, GraphicsContext& gc)

{

IntPoint scrollPosition = view->scrollPosition();

rect.move(-scrollPosition.x(), -scrollPosition.y());

rect = view->convertToContainingWindow(rect);

gc.concatCTM(AffineTransform().translate(-rect.x(), -rect.y()));

view->paint(gc, rect);

}

GDIObject<HBITMAP> imageFromRect(const Frame* frame, IntRect& ir)

{

auto oldPaintBehavior = frame->view()->paintBehavior();

frame->view()->setPaintBehavior(oldPaintBehavior | PaintBehavior::FlattenCompositingLayers);

void* bits = nullptr;

auto hdc = adoptGDIObject(::CreateCompatibleDC(0));

int w = ir.width();

int h = ir.height();

BitmapInfo bmp = BitmapInfo::create(IntSize(w, h));

GDIObject<HBITMAP> hbmp = adoptGDIObject(::CreateDIBSection(0, &bmp, DIB_RGB_COLORS, static_cast<void**>(&bits), 0, 0));

if (!hbmp)

return hbmp;

HGDIOBJ hbmpOld = SelectObject(hdc.get(), hbmp.get());

auto context = adoptCF(CGBitmapContextCreate(static_cast<void*>(bits), w, h,

8, w * sizeof(RGBQUAD), sRGBColorSpaceRef(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst));

CGContextSaveGState(context.get());

GraphicsContextCG gc(context.get());

drawRectIntoContext(ir, frame->view(), gc);

SelectObject(hdc.get(), hbmpOld);

frame->view()->setPaintBehavior(oldPaintBehavior);

return hbmp;

}

} // namespace WebCore

#endif