зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.1 KiB
C++
67 строки
2.1 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/gfx/2D.h"
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#include "mozilla/ipc/DocumentRendererParent.h"
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#include "mozilla/RefPtr.h"
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#include "gfxPattern.h"
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#include "nsICanvasRenderingContextInternal.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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using namespace mozilla::ipc;
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DocumentRendererParent::DocumentRendererParent()
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{}
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DocumentRendererParent::~DocumentRendererParent()
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{}
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void DocumentRendererParent::SetCanvasContext(nsICanvasRenderingContextInternal* aCanvas,
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gfxContext* ctx)
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{
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mCanvas = aCanvas;
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mCanvasContext = ctx;
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}
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void DocumentRendererParent::DrawToCanvas(const nsIntSize& aSize,
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const nsCString& aData)
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{
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if (!mCanvas || !mCanvasContext)
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return;
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RefPtr<DataSourceSurface> dataSurface =
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Factory::CreateWrappingDataSourceSurface(reinterpret_cast<uint8_t*>(const_cast<nsCString&>(aData).BeginWriting()),
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aSize.width * 4,
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IntSize(aSize.width, aSize.height),
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SurfaceFormat::B8G8R8A8);
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nsRefPtr<gfxPattern> pat = new gfxPattern(dataSurface, Matrix());
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gfxRect rect(gfxPoint(0, 0), gfxSize(aSize.width, aSize.height));
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mCanvasContext->NewPath();
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mCanvasContext->PixelSnappedRectangleAndSetPattern(rect, pat);
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mCanvasContext->Fill();
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// get rid of the pattern surface ref, because aData is very
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// likely to go away shortly
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mCanvasContext->SetColor(gfxRGBA(1,1,1,1));
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gfxRect damageRect = mCanvasContext->UserToDevice(rect);
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mCanvas->Redraw(damageRect);
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}
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void
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DocumentRendererParent::ActorDestroy(ActorDestroyReason aWhy)
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{
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// Implement me! Bug 1005139
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}
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bool
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DocumentRendererParent::Recv__delete__(const nsIntSize& renderedSize,
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const nsCString& data)
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{
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DrawToCanvas(renderedSize, data);
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return true;
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}
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