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.
5 #ifndef UI_GFX_GEOMETRY_CUBIC_BEZIER_H_
6 #define UI_GFX_GEOMETRY_CUBIC_BEZIER_H_
8 #include "base/macros.h"
9 #include "ui/gfx/gfx_export.h"
13 class GFX_EXPORT CubicBezier {
15 CubicBezier(double x1, double y1, double x2, double y2);
18 // Returns an approximation of y at the given x.
19 double Solve(double x) const;
21 // Returns an approximation of dy/dx at the given x.
22 double Slope(double x) const;
24 // Sets |min| and |max| to the bezier's minimum and maximium y values in the
26 void Range(double* min, double* max) const;
34 DISALLOW_ASSIGN(CubicBezier);
39 #endif // UI_GFX_GEOMETRY_CUBIC_BEZIER_H_