cc/blink/web_float_animation_curve_impl.cc

   1 // Copyright 2014 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 #include "cc/blink/web_float_animation_curve_impl.h"
   6
   7 #include "cc/animation/animation_curve.h"
   8 #include "cc/animation/keyframed_animation_curve.h"
   9 #include "cc/animation/timing_function.h"
  10 #include "cc/blink/web_animation_curve_common.h"
  11
  12 using blink::WebFloatKeyframe;
  13
  14 namespace cc_blink {
  15
  16 WebFloatAnimationCurveImpl::WebFloatAnimationCurveImpl()
  17     : curve_(cc::KeyframedFloatAnimationCurve::Create()) {
  18 }
  19
  20 WebFloatAnimationCurveImpl::~WebFloatAnimationCurveImpl() {
  21 }
  22
  23 blink::WebCompositorAnimationCurve::AnimationCurveType
  24 WebFloatAnimationCurveImpl::type() const {
  25   return blink::WebCompositorAnimationCurve::AnimationCurveTypeFloat;
  26 }
  27
  28 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe) {
  29   add(keyframe, TimingFunctionTypeEase);
  30 }
  31
  32 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe,
  33                                      TimingFunctionType type) {
  34   curve_->AddKeyframe(
  35       cc::FloatKeyframe::Create(base::TimeDelta::FromSecondsD(keyframe.time),
  36                                 keyframe.value, CreateTimingFunction(type)));
  37 }
  38
  39 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe,
  40                                      double x1,
  41                                      double y1,
  42                                      double x2,
  43                                      double y2) {
  44   curve_->AddKeyframe(cc::FloatKeyframe::Create(
  45       base::TimeDelta::FromSecondsD(keyframe.time), keyframe.value,
  46       cc::CubicBezierTimingFunction::Create(x1, y1, x2, y2)));
  47 }
  48
  49 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe,
  50                                      int steps,
  51                                      float steps_start_offset) {
  52   curve_->AddKeyframe(cc::FloatKeyframe::Create(
  53       base::TimeDelta::FromSecondsD(keyframe.time), keyframe.value,
  54       cc::StepsTimingFunction::Create(steps, steps_start_offset)));
  55 }
  56
  57 void WebFloatAnimationCurveImpl::setLinearTimingFunction() {
  58   curve_->SetTimingFunction(nullptr);
  59 }
  60
  61 void WebFloatAnimationCurveImpl::setCubicBezierTimingFunction(
  62     TimingFunctionType type) {
  63   curve_->SetTimingFunction(CreateTimingFunction(type));
  64 }
  65
  66 void WebFloatAnimationCurveImpl::setCubicBezierTimingFunction(double x1,
  67                                                               double y1,
  68                                                               double x2,
  69                                                               double y2) {
  70   curve_->SetTimingFunction(
  71       cc::CubicBezierTimingFunction::Create(x1, y1, x2, y2).Pass());
  72 }
  73
  74 void WebFloatAnimationCurveImpl::setStepsTimingFunction(
  75     int number_of_steps,
  76     float steps_start_offset) {
  77   curve_->SetTimingFunction(cc::StepsTimingFunction::Create(
  78                                 number_of_steps, steps_start_offset).Pass());
  79 }
  80
  81 float WebFloatAnimationCurveImpl::getValue(double time) const {
  82   return curve_->GetValue(base::TimeDelta::FromSecondsD(time));
  83 }
  84
  85 scoped_ptr<cc::AnimationCurve>
  86 WebFloatAnimationCurveImpl::CloneToAnimationCurve() const {
  87   return curve_->Clone();
  88 }
  89
  90 }  // namespace cc_blink