1 /* 2 * Copyright (C) 2012 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #ifndef WebFloatAnimationCurve_h 26 #define WebFloatAnimationCurve_h 27 28 #include "WebAnimationCurve.h" 29 30 #include "WebCommon.h" 31 #include "WebFloatKeyframe.h" 32 33 namespace blink { 34 35 // A keyframed float animation curve. 36 class WebFloatAnimationCurve : public WebAnimationCurve { 37 public: ~WebFloatAnimationCurve()38 virtual ~WebFloatAnimationCurve() { } 39 40 // Adds the keyframe with the default timing function (ease). 41 virtual void add(const WebFloatKeyframe&) = 0; 42 virtual void add(const WebFloatKeyframe&, TimingFunctionType) = 0; 43 // Adds the keyframe with a custom, bezier timing function. Note, it is 44 // assumed that x0 = y0 = 0, and x3 = y3 = 1. 45 virtual void add(const WebFloatKeyframe&, double x1, double y1, double x2, double y2) = 0; 46 47 virtual float getValue(double time) const = 0; 48 }; 49 50 } // namespace blink 51 52 #endif // WebFloatAnimationCurve_h 53