gecko/gfx/layers/basic/BasicColorLayer.cpp
Horia Iosif Olaru c26db357b5 Bug 952051 - Change the GetOperator call in FlushGroup to take into account the mix-blend-mode operator for the group. r=roc
Create a new GetEffectiveOperator function that also takes into acount the mix-blend-mode operator for basic layers. Replace logic that chooses between the effective mix blend mode and the operator returned by GetOperator, with calls to this function.
2014-02-27 11:56:48 -05:00

101 lines
3.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "BasicLayersImpl.h" // for FillWithMask, etc
#include "Layers.h" // for ColorLayer, etc
#include "BasicImplData.h" // for BasicImplData
#include "BasicLayers.h" // for BasicLayerManager
#include "gfxContext.h" // for gfxContext, etc
#include "gfxRect.h" // for gfxRect
#include "gfx2DGlue.h"
#include "mozilla/mozalloc.h" // for operator new
#include "nsAutoPtr.h" // for nsRefPtr
#include "nsCOMPtr.h" // for already_AddRefed
#include "nsDebug.h" // for NS_ASSERTION
#include "nsISupportsImpl.h" // for Layer::AddRef, etc
#include "nsRect.h" // for nsIntRect
#include "nsRegion.h" // for nsIntRegion
using namespace mozilla::gfx;
namespace mozilla {
namespace layers {
class BasicColorLayer : public ColorLayer, public BasicImplData {
public:
BasicColorLayer(BasicLayerManager* aLayerManager) :
ColorLayer(aLayerManager,
static_cast<BasicImplData*>(MOZ_THIS_IN_INITIALIZER_LIST()))
{
MOZ_COUNT_CTOR(BasicColorLayer);
}
virtual ~BasicColorLayer()
{
MOZ_COUNT_DTOR(BasicColorLayer);
}
virtual void SetVisibleRegion(const nsIntRegion& aRegion)
{
NS_ASSERTION(BasicManager()->InConstruction(),
"Can only set properties in construction phase");
ColorLayer::SetVisibleRegion(aRegion);
}
virtual void Paint(DrawTarget* aTarget, SourceSurface* aMaskSurface)
{
if (IsHidden()) {
return;
}
CompositionOp op = GetEffectiveOperator(this);
DrawOptions opts = DrawOptions();
opts.mCompositionOp = op;
ColorPattern pattern(ToColor(mColor));
aTarget->MaskSurface(pattern,
aMaskSurface,
ToIntRect(GetBounds()).TopLeft(),
opts);
}
virtual void DeprecatedPaint(gfxContext* aContext, Layer* aMaskLayer)
{
if (IsHidden()) {
return;
}
gfxContextAutoSaveRestore contextSR(aContext);
gfxContext::GraphicsOperator mixBlendMode = DeprecatedGetEffectiveMixBlendMode();
AutoSetOperator setOptimizedOperator(aContext,
mixBlendMode != gfxContext::OPERATOR_OVER ?
mixBlendMode :
DeprecatedGetOperator());
aContext->SetColor(mColor);
nsIntRect bounds = GetBounds();
aContext->NewPath();
aContext->SnappedRectangle(gfxRect(bounds.x, bounds.y, bounds.width, bounds.height));
FillWithMask(aContext, GetEffectiveOpacity(), aMaskLayer);
}
protected:
BasicLayerManager* BasicManager()
{
return static_cast<BasicLayerManager*>(mManager);
}
};
already_AddRefed<ColorLayer>
BasicLayerManager::CreateColorLayer()
{
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
nsRefPtr<ColorLayer> layer = new BasicColorLayer(this);
return layer.forget();
}
}
}