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(cc::FloatKeyframe::Create(
  35       keyframe.time, keyframe.value, CreateTimingFunction(type)));
  36 }
  37
  38 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe,
  39                                      double x1,
  40                                      double y1,
  41                                      double x2,
  42                                      double y2) {
  43   curve_->AddKeyframe(cc::FloatKeyframe::Create(
  44       keyframe.time,
  45       keyframe.value,
  46       cc::CubicBezierTimingFunction::Create(x1, y1, x2, y2)
  47           .PassAs<cc::TimingFunction>()));
  48 }
  49
  50 float WebFloatAnimationCurveImpl::getValue(double time) const {
  51   return curve_->GetValue(time);
  52 }
  53
  54 scoped_ptr<cc::AnimationCurve>
  55 WebFloatAnimationCurveImpl::CloneToAnimationCurve() const {
  56   return curve_->Clone();
  57 }
  58
  59 }  // namespace cc_blink