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75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* 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 "BasicCanvasLayer.h"
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#include "AsyncCanvasRenderer.h"
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#include "basic/BasicLayers.h" // for BasicLayerManager
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#include "basic/BasicLayersImpl.h" // for GetEffectiveOperator
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#include "mozilla/mozalloc.h" // for operator new
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#include "nsAutoPtr.h" // for nsRefPtr
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#include "nsCOMPtr.h" // for already_AddRefed
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#include "nsISupportsImpl.h" // for Layer::AddRef, etc
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#include "gfx2DGlue.h"
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class gfxContext;
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using namespace mozilla::gfx;
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using namespace mozilla::gl;
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namespace mozilla {
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namespace layers {
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void
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BasicCanvasLayer::Paint(DrawTarget* aDT,
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const Point& aDeviceOffset,
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Layer* aMaskLayer)
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{
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if (IsHidden())
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return;
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if (IsDirty()) {
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Painted();
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FirePreTransactionCallback();
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UpdateTarget();
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FireDidTransactionCallback();
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}
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if (!mSurface) {
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return;
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}
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const bool needsYFlip = (mOriginPos == gl::OriginPos::BottomLeft);
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Matrix oldTM;
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if (needsYFlip) {
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oldTM = aDT->GetTransform();
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aDT->SetTransform(Matrix(oldTM).
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PreTranslate(0.0f, mBounds.height).
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PreScale(1.0f, -1.0f));
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}
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FillRectWithMask(aDT, aDeviceOffset,
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Rect(0, 0, mBounds.width, mBounds.height),
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mSurface, mFilter,
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DrawOptions(GetEffectiveOpacity(), GetEffectiveOperator(this)),
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aMaskLayer);
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if (needsYFlip) {
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aDT->SetTransform(oldTM);
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}
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}
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already_AddRefed<CanvasLayer>
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BasicLayerManager::CreateCanvasLayer()
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{
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NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
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RefPtr<CanvasLayer> layer = new BasicCanvasLayer(this);
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return layer.forget();
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}
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} // namespace layers
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} // namespace mozilla
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