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81 lines
2.2 KiB
C++
81 lines
2.2 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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#ifndef mozilla_image_ImageMetadata_h
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#define mozilla_image_ImageMetadata_h
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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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: mLoopCount(-1)
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, mFirstFrameTimeout(0)
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, mHasAnimation(false)
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{ }
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void SetHotspot(uint16_t aHotspotX, uint16_t aHotspotY)
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{
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mHotspot = Some(gfx::IntPoint(aHotspotX, aHotspotY));
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}
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gfx::IntPoint GetHotspot() const { return *mHotspot; }
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bool HasHotspot() const { return mHotspot.isSome(); }
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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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int32_t GetLoopCount() const { return mLoopCount; }
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void SetFirstFrameTimeout(int32_t aTimeout) { mFirstFrameTimeout = aTimeout; }
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int32_t GetFirstFrameTimeout() const { return mFirstFrameTimeout; }
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void SetSize(int32_t width, int32_t height, Orientation orientation)
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{
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if (!HasSize()) {
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mSize.emplace(nsIntSize(width, height));
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mOrientation.emplace(orientation);
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}
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}
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nsIntSize GetSize() const { return *mSize; }
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Orientation GetOrientation() const { return *mOrientation; }
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bool HasSize() const { return mSize.isSome(); }
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bool HasOrientation() const { return mOrientation.isSome(); }
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void SetHasAnimation() { mHasAnimation = true; }
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bool HasAnimation() const { return mHasAnimation; }
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private:
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/// The hotspot found on cursors, if present.
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Maybe<gfx::IntPoint> mHotspot;
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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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/// The timeout of an animated image's first frame.
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int32_t mFirstFrameTimeout;
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Maybe<nsIntSize> mSize;
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Maybe<Orientation> mOrientation;
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bool mHasAnimation : 1;
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};
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} // namespace image
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} // namespace mozilla
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#endif // mozilla_image_ImageMetadata_h
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