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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
danakj
2014/09/16 00:16:22
This seems like it is an animation thing not a geo
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2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef UI_GFX_GEOMETRY_STEPS_H_ | |
6 #define UI_GFX_GEOMETRY_STEPS_H_ | |
7 | |
8 #include "base/macros.h" | |
9 #include "ui/gfx/gfx_export.h" | |
10 | |
11 namespace gfx { | |
12 | |
13 class GFX_EXPORT Steps { | |
14 public: | |
15 Steps(int steps, bool steps_at_start); | |
16 ~Steps(); | |
17 | |
18 // Returns y at the given x. | |
19 double Solve(double x) const; | |
20 | |
21 // Sets |min| and |max| to the step functions's minimum and maximium y values | |
22 // in the interval [0, 1]. | |
23 void Range(double* min, double* max) const; | |
24 | |
25 private: | |
26 int steps_; | |
27 bool steps_at_start_; | |
28 | |
29 DISALLOW_ASSIGN(Steps); | |
30 }; | |
31 | |
32 } // namespace gfx | |
33 | |
34 #endif // UI_GFX_GEOMETRY_STEPS_H_ | |
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