| /* |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WebFloatAnimationCurve_h |
| #define WebFloatAnimationCurve_h |
| |
| #include "WebCompositorAnimationCurve.h" |
| |
| #include "WebCommon.h" |
| #include "WebFloatKeyframe.h" |
| |
| namespace blink { |
| |
| // A keyframed float animation curve. |
| class WebFloatAnimationCurve : public WebCompositorAnimationCurve { |
| public: |
| virtual ~WebFloatAnimationCurve() { } |
| |
| // Adds the keyframe with the default timing function (ease). |
| virtual void add(const WebFloatKeyframe&) = 0; |
| virtual void add(const WebFloatKeyframe&, TimingFunctionType) = 0; |
| // Adds the keyframe with a custom, bezier timing function. Note, it is |
| // assumed that x0 = y0 = 0, and x3 = y3 = 1. |
| virtual void add(const WebFloatKeyframe&, double x1, double y1, double x2, double y2) = 0; |
| // Adds the keyframe with a steps timing function. |
| virtual void add(const WebFloatKeyframe&, int steps, float stepsStartOffset) = 0; |
| |
| virtual void setLinearTimingFunction() = 0; |
| virtual void setCubicBezierTimingFunction(TimingFunctionType) = 0; |
| virtual void setCubicBezierTimingFunction(double x1, double y1, double x2, double y2) = 0; |
| virtual void setStepsTimingFunction(int numberOfSteps, float stepsStartOffset) = 0; |
| |
| virtual float getValue(double time) const = 0; |
| }; |
| |
| } // namespace blink |
| |
| #endif // WebFloatAnimationCurve_h |