chromium/ui/gfx/animation/keyframe/animation_curve.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_ANIMATION_KEYFRAME_ANIMATION_CURVE_H_
#define UI_GFX_ANIMATION_KEYFRAME_ANIMATION_CURVE_H_

#include <memory>

#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/animation/keyframe/keyframe_animation_export.h"
#include "ui/gfx/animation/keyframe/timing_function.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size_f.h"
#include "ui/gfx/geometry/transform.h"

namespace gfx {
class TransformOperations;
class KeyframeModel;

// An animation curve is a function that returns a value given a time.
class GFX_KEYFRAME_ANIMATION_EXPORT AnimationCurve { … };

// Two methods are provided for sampling curves: GetValue and
// GetTransformedValue. Use GetTransformedValue when a timing function is
// being applied to the sampled animation curve.
// RAW_PTR_EXCLUSION: #macro
#define DECLARE_ANIMATION_CURVE_BODY(T, Name) …

class GFX_KEYFRAME_ANIMATION_EXPORT ColorAnimationCurve
    : public AnimationCurve { … };

class GFX_KEYFRAME_ANIMATION_EXPORT FloatAnimationCurve
    : public AnimationCurve { … };

class GFX_KEYFRAME_ANIMATION_EXPORT SizeAnimationCurve : public AnimationCurve { … };

class GFX_KEYFRAME_ANIMATION_EXPORT TransformAnimationCurve
    : public AnimationCurve { … };

class GFX_KEYFRAME_ANIMATION_EXPORT RectAnimationCurve : public AnimationCurve { … };

}  // namespace gfx

#endif  // UI_GFX_ANIMATION_KEYFRAME_ANIMATION_CURVE_H_