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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_image_ImageMetadata_h
#define mozilla_image_ImageMetadata_h
#include <stdint.h>
#include "mozilla/Maybe.h"
#include "nsSize.h"
#include "Orientation.h"
namespace mozilla {
namespace image {
class RasterImage;
// The metadata about an image that decoders accumulate as they decode.
class ImageMetadata
{
public:
ImageMetadata()
: mLoopCount(-1)
, mFirstFrameTimeout(FrameTimeout::Forever())
, mHasAnimation(false)
{ }
void SetHotspot(uint16_t aHotspotX, uint16_t aHotspotY)
{
mHotspot = Some(gfx::IntPoint(aHotspotX, aHotspotY));
}
gfx::IntPoint GetHotspot() const { return *mHotspot; }
bool HasHotspot() const { return mHotspot.isSome(); }
void SetLoopCount(int32_t loopcount)
{
mLoopCount = loopcount;
}
int32_t GetLoopCount() const { return mLoopCount; }
void SetLoopLength(FrameTimeout aLength) { mLoopLength = Some(aLength); }
FrameTimeout GetLoopLength() const { return *mLoopLength; }
bool HasLoopLength() const { return mLoopLength.isSome(); }
void SetFirstFrameTimeout(FrameTimeout aTimeout) { mFirstFrameTimeout = aTimeout; }
FrameTimeout GetFirstFrameTimeout() const { return mFirstFrameTimeout; }
void SetFirstFrameRefreshArea(const gfx::IntRect& aRefreshArea)
{
mFirstFrameRefreshArea = Some(aRefreshArea);
}
gfx::IntRect GetFirstFrameRefreshArea() const { return *mFirstFrameRefreshArea; }
bool HasFirstFrameRefreshArea() const { return mFirstFrameRefreshArea.isSome(); }
void SetSize(int32_t width, int32_t height, Orientation orientation)
{
if (!HasSize()) {
mSize.emplace(nsIntSize(width, height));
mOrientation.emplace(orientation);
}
}
nsIntSize GetSize() const { return *mSize; }
bool HasSize() const { return mSize.isSome(); }
Orientation GetOrientation() const { return *mOrientation; }
bool HasOrientation() const { return mOrientation.isSome(); }
void SetHasAnimation() { mHasAnimation = true; }
bool HasAnimation() const { return mHasAnimation; }
private:
/// The hotspot found on cursors, if present.
Maybe<gfx::IntPoint> mHotspot;
/// The loop count for animated images, or -1 for infinite loop.
int32_t mLoopCount;
// The total length of a single loop through an animated image.
Maybe<FrameTimeout> mLoopLength;
/// The timeout of an animated image's first frame.
FrameTimeout mFirstFrameTimeout;
// The area of the image that needs to be invalidated when the animation
// loops.
Maybe<gfx::IntRect> mFirstFrameRefreshArea;
Maybe<nsIntSize> mSize;
Maybe<Orientation> mOrientation;
bool mHasAnimation : 1;
};
} // namespace image
} // namespace mozilla
#endif // mozilla_image_ImageMetadata_h
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