/* -*- 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/. */ #ifndef mozilla_image_OrientedImage_h #define mozilla_image_OrientedImage_h #include "ImageWrapper.h" #include "mozilla/gfx/2D.h" #include "mozilla/RefPtr.h" #include "Orientation.h" namespace mozilla { namespace image { /** * An Image wrapper that rotates and/or flips an image according to a specified * Orientation. * * XXX(seth): There a known (performance, not correctness) issue with * GetImageContainer. See the comments for that method for more information. */ class OrientedImage : public ImageWrapper { typedef gfx::SourceSurface SourceSurface; public: NS_DECL_ISUPPORTS_INHERITED NS_IMETHOD GetWidth(int32_t* aWidth) override; NS_IMETHOD GetHeight(int32_t* aHeight) override; NS_IMETHOD GetIntrinsicSize(nsSize* aSize) override; NS_IMETHOD GetIntrinsicRatio(nsSize* aRatio) override; NS_IMETHOD_(already_AddRefed<SourceSurface>) GetFrame(uint32_t aWhichFrame, uint32_t aFlags) override; NS_IMETHOD_(already_AddRefed<SourceSurface>) GetFrameAtSize(const gfx::IntSize& aSize, uint32_t aWhichFrame, uint32_t aFlags) override; NS_IMETHOD_(bool) IsImageContainerAvailable(layers::LayerManager* aManager, uint32_t aFlags) override; NS_IMETHOD_(already_AddRefed<layers::ImageContainer>) GetImageContainer(layers::LayerManager* aManager, uint32_t aFlags) override; NS_IMETHOD_(DrawResult) Draw(gfxContext* aContext, const nsIntSize& aSize, const ImageRegion& aRegion, uint32_t aWhichFrame, gfx::SamplingFilter aSamplingFilter, const Maybe<SVGImageContext>& aSVGContext, uint32_t aFlags) override; NS_IMETHOD_(nsIntRect) GetImageSpaceInvalidationRect( const nsIntRect& aRect) override; nsIntSize OptimalImageSizeForDest(const gfxSize& aDest, uint32_t aWhichFrame, gfx::SamplingFilter aSamplingFilter, uint32_t aFlags) override; protected: OrientedImage(Image* aImage, Orientation aOrientation) : ImageWrapper(aImage) , mOrientation(aOrientation) { } virtual ~OrientedImage() { } gfxMatrix OrientationMatrix(const nsIntSize& aSize, bool aInvert = false); private: Orientation mOrientation; friend class ImageOps; }; } // namespace image } // namespace mozilla #endif // mozilla_image_OrientedImage_h