1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/image/src/OrientedImage.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,70 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef MOZILLA_IMAGELIB_ORIENTEDIMAGE_H_
1.10 +#define MOZILLA_IMAGELIB_ORIENTEDIMAGE_H_
1.11 +
1.12 +#include "ImageWrapper.h"
1.13 +#include "mozilla/gfx/2D.h"
1.14 +#include "mozilla/RefPtr.h"
1.15 +#include "Orientation.h"
1.16 +
1.17 +namespace mozilla {
1.18 +namespace image {
1.19 +
1.20 +/**
1.21 + * An Image wrapper that rotates and/or flips an image according to a specified
1.22 + * Orientation.
1.23 + *
1.24 + * XXX(seth): There a known (performance, not correctness) issue with
1.25 + * GetImageContainer. See the comments for that method for more information.
1.26 + */
1.27 +class OrientedImage : public ImageWrapper
1.28 +{
1.29 + typedef mozilla::gfx::SourceSurface SourceSurface;
1.30 +
1.31 +public:
1.32 + NS_DECL_ISUPPORTS
1.33 +
1.34 + virtual ~OrientedImage() { }
1.35 +
1.36 + virtual nsIntRect FrameRect(uint32_t aWhichFrame) MOZ_OVERRIDE;
1.37 +
1.38 + NS_IMETHOD GetWidth(int32_t* aWidth) MOZ_OVERRIDE;
1.39 + NS_IMETHOD GetHeight(int32_t* aHeight) MOZ_OVERRIDE;
1.40 + NS_IMETHOD GetIntrinsicSize(nsSize* aSize) MOZ_OVERRIDE;
1.41 + NS_IMETHOD GetIntrinsicRatio(nsSize* aRatio) MOZ_OVERRIDE;
1.42 + NS_IMETHOD_(mozilla::TemporaryRef<SourceSurface>)
1.43 + GetFrame(uint32_t aWhichFrame, uint32_t aFlags) MOZ_OVERRIDE;
1.44 + NS_IMETHOD GetImageContainer(mozilla::layers::LayerManager* aManager,
1.45 + mozilla::layers::ImageContainer** _retval) MOZ_OVERRIDE;
1.46 + NS_IMETHOD Draw(gfxContext* aContext,
1.47 + GraphicsFilter aFilter,
1.48 + const gfxMatrix& aUserSpaceToImageSpace,
1.49 + const gfxRect& aFill,
1.50 + const nsIntRect& aSubimage,
1.51 + const nsIntSize& aViewportSize,
1.52 + const SVGImageContext* aSVGContext,
1.53 + uint32_t aWhichFrame,
1.54 + uint32_t aFlags) MOZ_OVERRIDE;
1.55 +
1.56 +protected:
1.57 + OrientedImage(Image* aImage, Orientation aOrientation)
1.58 + : ImageWrapper(aImage)
1.59 + , mOrientation(aOrientation)
1.60 + { }
1.61 +
1.62 + gfxMatrix OrientationMatrix(const nsIntSize& aViewportSize);
1.63 +
1.64 +private:
1.65 + Orientation mOrientation;
1.66 +
1.67 + friend class ImageOps;
1.68 +};
1.69 +
1.70 +} // namespace image
1.71 +} // namespace mozilla
1.72 +
1.73 +#endif // MOZILLA_IMAGELIB_ORIENTEDIMAGE_H_
