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/*
* Copyright (C) 2010 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. AND ITS CONTRIBUTORS ``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 ITS 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 "ChunkedUpdateDrawingArea.h"
#include "UpdateChunk.h"
#include "WebFrame.h"
#include "WebPage.h"
#include "WebFrameLoaderClient.h"
#include <WebCore/Frame.h>
#include <WebCore/GraphicsContext.h>
#include <wtf/RetainPtr.h>
using namespace WebCore;
namespace WebKit {
void ChunkedUpdateDrawingArea::paintIntoUpdateChunk(UpdateChunk* updateChunk)
{
// FIXME: It would be better if we could avoid painting altogether when there is a custom representation.
if (m_webPage->mainFrameHasCustomRepresentation())
return;
RetainPtr<CGColorSpaceRef> colorSpace(AdoptCF, CGColorSpaceCreateDeviceRGB());
RetainPtr<CGContextRef> bitmapContext(AdoptCF, CGBitmapContextCreate(updateChunk->data(), updateChunk->rect().width(), updateChunk->rect().height(), 8, updateChunk->rect().width() * 4, colorSpace.get(), kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host));
// WebCore expects a flipped coordinate system.
CGContextTranslateCTM(bitmapContext.get(), 0.0, updateChunk->rect().height());
CGContextScaleCTM(bitmapContext.get(), 1.0, -1.0);
// Now paint into the backing store.
GraphicsContext graphicsContext(bitmapContext.get());
graphicsContext.translate(-updateChunk->rect().x(), -updateChunk->rect().y());
m_webPage->drawRect(graphicsContext, updateChunk->rect());
}
} // namespace WebKit
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