/* -*- Mode: C++; tab-width: 20; 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/. */ #ifndef GFX_IMAGELAYER_H #define GFX_IMAGELAYER_H #include "Layers.h" // for Layer, etc #include "mozilla/gfx/BaseSize.h" // for BaseSize #include "mozilla/gfx/Point.h" // for IntSize #include "mozilla/layers/LayersTypes.h" #include "nsAutoPtr.h" // for nsRefPtr #include "nscore.h" // for nsACString namespace mozilla { namespace layers { class ImageContainer; namespace layerscope { class LayersPacket; } // namespace layerscope /** * A Layer which renders an Image. */ class ImageLayer : public Layer { public: /** * CONSTRUCTION PHASE ONLY * Set the ImageContainer. aContainer must have the same layer manager * as this layer. */ virtual void SetContainer(ImageContainer* aContainer); /** * CONSTRUCTION PHASE ONLY * Set the filter used to resample this image if necessary. */ void SetSamplingFilter(gfx::SamplingFilter aSamplingFilter) { if (mSamplingFilter != aSamplingFilter) { MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) Filter", this)); mSamplingFilter = aSamplingFilter; Mutated(); } } /** * CONSTRUCTION PHASE ONLY * Set the size to scale the image to and the mode at which to scale. */ void SetScaleToSize(const gfx::IntSize &aSize, ScaleMode aMode) { if (mScaleToSize != aSize || mScaleMode != aMode) { mScaleToSize = aSize; mScaleMode = aMode; Mutated(); } } ImageContainer* GetContainer() { return mContainer; } gfx::SamplingFilter GetSamplingFilter() { return mSamplingFilter; } const gfx::IntSize& GetScaleToSize() { return mScaleToSize; } ScaleMode GetScaleMode() { return mScaleMode; } MOZ_LAYER_DECL_NAME("ImageLayer", TYPE_IMAGE) virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) override; virtual const gfx::Matrix4x4& GetEffectiveTransformForBuffer() const override { return mEffectiveTransformForBuffer; } protected: ImageLayer(LayerManager* aManager, void* aImplData); ~ImageLayer(); virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override; virtual void DumpPacket(layerscope::LayersPacket* aPacket, const void* aParent) override; RefPtr<ImageContainer> mContainer; gfx::SamplingFilter mSamplingFilter; gfx::IntSize mScaleToSize; ScaleMode mScaleMode; gfx::Matrix4x4 mEffectiveTransformForBuffer; }; } // namespace layers } // namespace mozilla #endif /* GFX_IMAGELAYER_H */