cc/animation/keyframed_animation_curve.h

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_
   6 #define CC_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_
   7
   8 #include "cc/animation/animation_curve.h"
   9 #include "cc/animation/timing_function.h"
  10 #include "cc/animation/transform_operations.h"
  11 #include "cc/base/cc_export.h"
  12 #include "cc/base/scoped_ptr_vector.h"
  13
  14 namespace cc {
  15
  16 class CC_EXPORT Keyframe {
  17  public:
  18   double Time() const;
  19   const TimingFunction* timing_function() const {
  20     return timing_function_.get();
  21   }
  22
  23  protected:
  24   Keyframe(double time, scoped_ptr<TimingFunction> timing_function);
  25   virtual ~Keyframe();
  26
  27  private:
  28   double time_;
  29   scoped_ptr<TimingFunction> timing_function_;
  30
  31   DISALLOW_COPY_AND_ASSIGN(Keyframe);
  32 };
  33
  34 class CC_EXPORT ColorKeyframe : public Keyframe {
  35  public:
  36   static scoped_ptr<ColorKeyframe> Create(
  37       double time,
  38       SkColor value,
  39       scoped_ptr<TimingFunction> timing_function);
  40   virtual ~ColorKeyframe();
  41
  42   SkColor Value() const;
  43
  44   scoped_ptr<ColorKeyframe> Clone() const;
  45
  46  private:
  47   ColorKeyframe(double time,
  48                 SkColor value,
  49                 scoped_ptr<TimingFunction> timing_function);
  50
  51   SkColor value_;
  52 };
  53
  54 class CC_EXPORT FloatKeyframe : public Keyframe {
  55  public:
  56   static scoped_ptr<FloatKeyframe> Create(
  57       double time,
  58       float value,
  59       scoped_ptr<TimingFunction> timing_function);
  60   virtual ~FloatKeyframe();
  61
  62   float Value() const;
  63
  64   scoped_ptr<FloatKeyframe> Clone() const;
  65
  66  private:
  67   FloatKeyframe(double time,
  68                 float value,
  69                 scoped_ptr<TimingFunction> timing_function);
  70
  71   float value_;
  72 };
  73
  74 class CC_EXPORT TransformKeyframe : public Keyframe {
  75  public:
  76   static scoped_ptr<TransformKeyframe> Create(
  77       double time,
  78       const TransformOperations& value,
  79       scoped_ptr<TimingFunction> timing_function);
  80   virtual ~TransformKeyframe();
  81
  82   const TransformOperations& Value() const;
  83
  84   scoped_ptr<TransformKeyframe> Clone() const;
  85
  86  private:
  87   TransformKeyframe(
  88       double time,
  89       const TransformOperations& value,
  90       scoped_ptr<TimingFunction> timing_function);
  91
  92   TransformOperations value_;
  93 };
  94
  95 class CC_EXPORT FilterKeyframe : public Keyframe {
  96  public:
  97   static scoped_ptr<FilterKeyframe> Create(
  98       double time,
  99       const FilterOperations& value,
 100       scoped_ptr<TimingFunction> timing_function);
 101   virtual ~FilterKeyframe();
 102
 103   const FilterOperations& Value() const;
 104
 105   scoped_ptr<FilterKeyframe> Clone() const;
 106
 107  private:
 108   FilterKeyframe(
 109       double time,
 110       const FilterOperations& value,
 111       scoped_ptr<TimingFunction> timing_function);
 112
 113   FilterOperations value_;
 114 };
 115
 116 class CC_EXPORT KeyframedColorAnimationCurve : public ColorAnimationCurve {
 117  public:
 118   // It is required that the keyframes be sorted by time.
 119   static scoped_ptr<KeyframedColorAnimationCurve> Create();
 120
 121   virtual ~KeyframedColorAnimationCurve();
 122
 123   void AddKeyframe(scoped_ptr<ColorKeyframe> keyframe);
 124
 125   // AnimationCurve implementation
 126   virtual double Duration() const OVERRIDE;
 127   virtual scoped_ptr<AnimationCurve> Clone() const OVERRIDE;
 128
 129   // BackgrounColorAnimationCurve implementation
 130   virtual SkColor GetValue(double t) const OVERRIDE;
 131
 132  private:
 133   KeyframedColorAnimationCurve();
 134
 135   // Always sorted in order of increasing time. No two keyframes have the
 136   // same time.
 137   ScopedPtrVector<ColorKeyframe> keyframes_;
 138
 139   DISALLOW_COPY_AND_ASSIGN(KeyframedColorAnimationCurve);
 140 };
 141
 142 class CC_EXPORT KeyframedFloatAnimationCurve : public FloatAnimationCurve {
 143  public:
 144   // It is required that the keyframes be sorted by time.
 145   static scoped_ptr<KeyframedFloatAnimationCurve> Create();
 146
 147   virtual ~KeyframedFloatAnimationCurve();
 148
 149   void AddKeyframe(scoped_ptr<FloatKeyframe> keyframe);
 150
 151   // AnimationCurve implementation
 152   virtual double Duration() const OVERRIDE;
 153   virtual scoped_ptr<AnimationCurve> Clone() const OVERRIDE;
 154
 155   // FloatAnimationCurve implementation
 156   virtual float GetValue(double t) const OVERRIDE;
 157
 158  private:
 159   KeyframedFloatAnimationCurve();
 160
 161   // Always sorted in order of increasing time. No two keyframes have the
 162   // same time.
 163   ScopedPtrVector<FloatKeyframe> keyframes_;
 164
 165   DISALLOW_COPY_AND_ASSIGN(KeyframedFloatAnimationCurve);
 166 };
 167
 168 class CC_EXPORT KeyframedTransformAnimationCurve
 169     : public TransformAnimationCurve {
 170  public:
 171   // It is required that the keyframes be sorted by time.
 172   static scoped_ptr<KeyframedTransformAnimationCurve> Create();
 173
 174   virtual ~KeyframedTransformAnimationCurve();
 175
 176   void AddKeyframe(scoped_ptr<TransformKeyframe> keyframe);
 177
 178   // AnimationCurve implementation
 179   virtual double Duration() const OVERRIDE;
 180   virtual scoped_ptr<AnimationCurve> Clone() const OVERRIDE;
 181
 182   // TransformAnimationCurve implementation
 183   virtual gfx::Transform GetValue(double t) const OVERRIDE;
 184   virtual bool AnimatedBoundsForBox(const gfx::BoxF& box,
 185                                     gfx::BoxF* bounds) const OVERRIDE;
 186   virtual bool AffectsScale() const OVERRIDE;
 187   virtual bool IsTranslation() const OVERRIDE;
 188   virtual bool MaximumScale(float* max_scale) const OVERRIDE;
 189
 190  private:
 191   KeyframedTransformAnimationCurve();
 192
 193   // Always sorted in order of increasing time. No two keyframes have the
 194   // same time.
 195   ScopedPtrVector<TransformKeyframe> keyframes_;
 196
 197   DISALLOW_COPY_AND_ASSIGN(KeyframedTransformAnimationCurve);
 198 };
 199
 200 class CC_EXPORT KeyframedFilterAnimationCurve
 201     : public FilterAnimationCurve {
 202  public:
 203   // It is required that the keyframes be sorted by time.
 204   static scoped_ptr<KeyframedFilterAnimationCurve> Create();
 205
 206   virtual ~KeyframedFilterAnimationCurve();
 207
 208   void AddKeyframe(scoped_ptr<FilterKeyframe> keyframe);
 209
 210   // AnimationCurve implementation
 211   virtual double Duration() const OVERRIDE;
 212   virtual scoped_ptr<AnimationCurve> Clone() const OVERRIDE;
 213
 214   // FilterAnimationCurve implementation
 215   virtual FilterOperations GetValue(double t) const OVERRIDE;
 216   virtual bool HasFilterThatMovesPixels() const OVERRIDE;
 217
 218  private:
 219   KeyframedFilterAnimationCurve();
 220
 221   // Always sorted in order of increasing time. No two keyframes have the
 222   // same time.
 223   ScopedPtrVector<FilterKeyframe> keyframes_;
 224
 225   DISALLOW_COPY_AND_ASSIGN(KeyframedFilterAnimationCurve);
 226 };
 227
 228 }  // namespace cc
 229
 230 #endif  // CC_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_