зеркало из https://github.com/mozilla/gecko-dev.git
75 строки
1.8 KiB
C++
75 строки
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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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#include <stdint.h>
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#include "mozilla/Maybe.h"
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#include "nsSize.h"
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#include "Orientation.h"
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namespace mozilla {
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namespace image {
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class RasterImage;
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// The metadata about an image that decoders accumulate as they decode.
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class ImageMetadata
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{
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public:
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ImageMetadata()
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: mHotspotX(-1)
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, mHotspotY(-1)
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, mLoopCount(-1)
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, mIsNonPremultiplied(false)
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{}
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// Set the metadata this object represents on an image.
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void SetOnImage(RasterImage* image);
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void SetHotspot(uint16_t hotspotx, uint16_t hotspoty)
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{
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mHotspotX = hotspotx;
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mHotspotY = hotspoty;
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}
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void SetLoopCount(int32_t loopcount)
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{
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mLoopCount = loopcount;
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}
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void SetIsNonPremultiplied(bool nonPremult)
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{
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mIsNonPremultiplied = nonPremult;
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}
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void SetSize(int32_t width, int32_t height, Orientation orientation)
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{
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mSize.construct(nsIntSize(width, height));
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mOrientation.construct(orientation);
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}
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bool HasSize() const { return !mSize.empty(); }
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bool HasOrientation() const { return !mOrientation.empty(); }
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int32_t GetWidth() const { return mSize.ref().width; }
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int32_t GetHeight() const { return mSize.ref().height; }
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Orientation GetOrientation() const { return mOrientation.ref(); }
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private:
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// The hotspot found on cursors, or -1 if none was found.
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int32_t mHotspotX;
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int32_t mHotspotY;
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// The loop count for animated images, or -1 for infinite loop.
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int32_t mLoopCount;
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Maybe<nsIntSize> mSize;
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Maybe<Orientation> mOrientation;
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bool mIsNonPremultiplied;
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};
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} // namespace image
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} // namespace mozilla
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