1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/image/src/ImageMetadata.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,79 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + *
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef ImageMetadata_h___
1.11 +#define ImageMetadata_h___
1.12 +
1.13 +#include <stdint.h>
1.14 +#include "mozilla/Maybe.h"
1.15 +#include "nsSize.h"
1.16 +#include "Orientation.h"
1.17 +
1.18 +namespace mozilla {
1.19 +namespace image {
1.20 +
1.21 +class RasterImage;
1.22 +
1.23 +// The metadata about an image that decoders accumulate as they decode.
1.24 +class ImageMetadata
1.25 +{
1.26 +public:
1.27 + ImageMetadata()
1.28 + : mHotspotX(-1)
1.29 + , mHotspotY(-1)
1.30 + , mLoopCount(-1)
1.31 + , mIsNonPremultiplied(false)
1.32 + {}
1.33 +
1.34 + // Set the metadata this object represents on an image.
1.35 + void SetOnImage(RasterImage* image);
1.36 +
1.37 + void SetHotspot(uint16_t hotspotx, uint16_t hotspoty)
1.38 + {
1.39 + mHotspotX = hotspotx;
1.40 + mHotspotY = hotspoty;
1.41 + }
1.42 + void SetLoopCount(int32_t loopcount)
1.43 + {
1.44 + mLoopCount = loopcount;
1.45 + }
1.46 +
1.47 + void SetIsNonPremultiplied(bool nonPremult)
1.48 + {
1.49 + mIsNonPremultiplied = nonPremult;
1.50 + }
1.51 +
1.52 + void SetSize(int32_t width, int32_t height, Orientation orientation)
1.53 + {
1.54 + mSize.construct(nsIntSize(width, height));
1.55 + mOrientation.construct(orientation);
1.56 + }
1.57 +
1.58 + bool HasSize() const { return !mSize.empty(); }
1.59 + bool HasOrientation() const { return !mOrientation.empty(); }
1.60 +
1.61 + int32_t GetWidth() const { return mSize.ref().width; }
1.62 + int32_t GetHeight() const { return mSize.ref().height; }
1.63 + Orientation GetOrientation() const { return mOrientation.ref(); }
1.64 +
1.65 +private:
1.66 + // The hotspot found on cursors, or -1 if none was found.
1.67 + int32_t mHotspotX;
1.68 + int32_t mHotspotY;
1.69 +
1.70 + // The loop count for animated images, or -1 for infinite loop.
1.71 + int32_t mLoopCount;
1.72 +
1.73 + Maybe<nsIntSize> mSize;
1.74 + Maybe<Orientation> mOrientation;
1.75 +
1.76 + bool mIsNonPremultiplied;
1.77 +};
1.78 +
1.79 +} // namespace image
1.80 +} // namespace mozilla
1.81 +
1.82 +#endif // ImageMetadata_h___
