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bb201c69bf
Backed out changeset 159d5d2946d3 (bug 1201796) Backed out changeset 958988218976 (bug 1201796) Backed out changeset 494e7553d641 (bug 1201796) Backed out changeset d58149411b7d (bug 1201796) Backed out changeset 35bd769b49f8 (bug 1196066) Backed out changeset e4f3d4279b4c (bug 1196066) Backed out changeset ca467297fa07 (bug 1196066) Backed out changeset b4851ce6637d (bug 1196066)
95 lines
3.5 KiB
C++
95 lines
3.5 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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#ifndef mozilla_image_ClippedImage_h
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#define mozilla_image_ClippedImage_h
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#include "ImageWrapper.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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namespace image {
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class ClippedImageCachedSurface;
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class DrawSingleTileCallback;
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/**
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* An Image wrapper that clips an image against a rectangle. Right now only
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* absolute coordinates in pixels are supported.
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*
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* XXX(seth): There a known (performance, not correctness) issue with
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* GetImageContainer. See the comments for that method for more information.
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*/
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class ClippedImage : public ImageWrapper
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{
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typedef gfx::SourceSurface SourceSurface;
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_IMETHOD GetWidth(int32_t* aWidth) override;
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NS_IMETHOD GetHeight(int32_t* aHeight) override;
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NS_IMETHOD GetIntrinsicSize(nsSize* aSize) override;
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NS_IMETHOD GetIntrinsicRatio(nsSize* aRatio) override;
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NS_IMETHOD_(already_AddRefed<SourceSurface>)
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GetFrame(uint32_t aWhichFrame, uint32_t aFlags) override;
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NS_IMETHOD_(bool) IsImageContainerAvailable(layers::LayerManager* aManager,
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uint32_t aFlags) override;
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NS_IMETHOD_(already_AddRefed<layers::ImageContainer>)
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GetImageContainer(layers::LayerManager* aManager,
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uint32_t aFlags) override;
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NS_IMETHOD_(DrawResult) Draw(gfxContext* aContext,
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const nsIntSize& aSize,
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const ImageRegion& aRegion,
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uint32_t aWhichFrame,
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GraphicsFilter aFilter,
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const Maybe<SVGImageContext>& aSVGContext,
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uint32_t aFlags) override;
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NS_IMETHOD RequestDiscard() override;
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NS_IMETHOD_(Orientation) GetOrientation() override;
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NS_IMETHOD_(nsIntRect) GetImageSpaceInvalidationRect(const nsIntRect& aRect)
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override;
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nsIntSize OptimalImageSizeForDest(const gfxSize& aDest,
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uint32_t aWhichFrame,
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GraphicsFilter aFilter,
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uint32_t aFlags) override;
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protected:
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ClippedImage(Image* aImage, nsIntRect aClip);
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virtual ~ClippedImage();
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private:
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already_AddRefed<SourceSurface>
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GetFrameInternal(const nsIntSize& aSize,
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const Maybe<SVGImageContext>& aSVGContext,
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uint32_t aWhichFrame,
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uint32_t aFlags);
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bool ShouldClip();
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DrawResult DrawSingleTile(gfxContext* aContext,
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const nsIntSize& aSize,
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const ImageRegion& aRegion,
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uint32_t aWhichFrame,
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GraphicsFilter aFilter,
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const Maybe<SVGImageContext>& aSVGContext,
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uint32_t aFlags);
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// If we are forced to draw a temporary surface, we cache it here.
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nsAutoPtr<ClippedImageCachedSurface> mCachedSurface;
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nsIntRect mClip; // The region to clip to.
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Maybe<bool> mShouldClip; // Memoized ShouldClip() if present.
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friend class DrawSingleTileCallback;
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friend class ImageOps;
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};
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} // namespace image
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} // namespace mozilla
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#endif // mozilla_image_ClippedImage_h
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