gecko/gfx/layers/basic/BasicColorLayer.cpp

67 lines
1.8 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 "mozilla/layers/PLayerTransactionParent.h"
#include "BasicLayersImpl.h"
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(gfxContext* aContext, Layer* aMaskLayer)
{
if (IsHidden())
return;
gfxContextAutoSaveRestore contextSR(aContext);
AutoSetOperator setOperator(aContext, GetOperator());
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();
}
}
}