OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 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 AN
Y | 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y |
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 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 O
N | 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N |
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 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 | 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. | 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
23 */ | 23 */ |
24 | 24 |
25 #ifndef TouchpadFlingPlatformGestureCurve_h | 25 #ifndef TouchpadFlingPlatformGestureCurve_h |
26 #define TouchpadFlingPlatformGestureCurve_h | 26 #define TouchpadFlingPlatformGestureCurve_h |
27 | 27 |
28 #include "FloatPoint.h" | 28 #include "FloatPoint.h" |
29 #include "PlatformGestureCurve.h" | 29 #include "PlatformGestureCurve.h" |
30 #include "UnitBezier.h" | |
31 #include <wtf/OwnPtr.h> | 30 #include <wtf/OwnPtr.h> |
32 #include <wtf/PassOwnPtr.h> | 31 #include <wtf/PassOwnPtr.h> |
33 | 32 |
34 namespace WebCore { | 33 namespace WebCore { |
35 | 34 |
36 class PlatformGestureCurveTarget; | 35 class PlatformGestureCurveTarget; |
37 | 36 |
38 // Implementation of PlatformGestureCurve suitable for touch pad/screen-based | 37 // Implementation of PlatformGestureCurve suitable for touch pad/screen-based |
39 // fling scroll. Starts with a flat velocity profile based on 'velocity', which | 38 // fling scroll. Starts with a flat velocity profile based on 'velocity', which |
40 // tails off to zero. Time is scaled to that duration of the fling is proportion
al | 39 // tails off to zero. Time is scaled to that duration of the fling is proportion
al |
41 // the initial velocity. | 40 // the initial velocity. |
42 class TouchpadFlingPlatformGestureCurve : public PlatformGestureCurve { | 41 class TouchpadFlingPlatformGestureCurve : public PlatformGestureCurve { |
43 public: | 42 public: |
44 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity, I
ntPoint cumulativeScroll = IntPoint()); | 43 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity, I
ntPoint cumulativeScroll = IntPoint()); |
45 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity, c
onst float unitTimeScaleLog10, const FloatPoint& bezierP1, const FloatPoint& bez
ierP2, IntPoint cumulativeScroll = IntPoint()); | 44 static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity, f
loat p0, float p1, float p2, float p3, float p4, float curveDuration, IntPoint c
umulativeScroll = IntPoint()); |
46 virtual ~TouchpadFlingPlatformGestureCurve(); | 45 virtual ~TouchpadFlingPlatformGestureCurve(); |
47 | 46 |
48 virtual const char* debugName() const { return "TouchpadFling"; } | 47 virtual const char* debugName() const { return "TouchpadFling"; } |
49 virtual bool apply(double monotonicTime, PlatformGestureCurveTarget*); | 48 virtual bool apply(double monotonicTime, PlatformGestureCurveTarget*); |
50 | 49 |
51 private: | 50 private: |
52 TouchpadFlingPlatformGestureCurve(const FloatPoint& velocity, const float un
itTimeScaleLog10, const FloatPoint& bezierP1, const FloatPoint& bezierP2, const
IntPoint& cumulativeScroll); | 51 TouchpadFlingPlatformGestureCurve(const FloatPoint& velocity, float p0, floa
t p1, float p2, float p3, float p4, float curveDuration, const IntPoint& cumulat
iveScroll); |
53 | 52 |
54 FloatPoint m_velocity; | 53 FloatPoint m_displacementRatio; |
55 float m_timeScaleFactor; | |
56 IntPoint m_cumulativeScroll; | 54 IntPoint m_cumulativeScroll; |
57 UnitBezier m_flingBezier; | 55 float m_coeffs[5]; |
| 56 float m_timeOffset; |
| 57 float m_curveDuration; |
| 58 float m_positionOffset; |
| 59 |
| 60 static const int m_maxSearchIterations; |
58 }; | 61 }; |
59 | 62 |
60 } // namespace WebCore | 63 } // namespace WebCore |
61 | 64 |
62 #endif | 65 #endif |
OLD | NEW |