bezier_curve.h

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00001 /*
00002 **  ClanLib SDK
00003 **  Copyright (c) 1997-2011 The ClanLib Team
00004 **
00005 **  This software is provided 'as-is', without any express or implied
00006 **  warranty.  In no event will the authors be held liable for any damages
00007 **  arising from the use of this software.
00008 **
00009 **  Permission is granted to anyone to use this software for any purpose,
00010 **  including commercial applications, and to alter it and redistribute it
00011 **  freely, subject to the following restrictions:
00012 **
00013 **  1. The origin of this software must not be misrepresented; you must not
00014 **     claim that you wrote the original software. If you use this software
00015 **     in a product, an acknowledgment in the product documentation would be
00016 **     appreciated but is not required.
00017 **  2. Altered source versions must be plainly marked as such, and must not be
00018 **     misrepresented as being the original software.
00019 **  3. This notice may not be removed or altered from any source distribution.
00020 **
00021 **  Note: Some of the libraries ClanLib may link to may have additional
00022 **  requirements or restrictions.
00023 **
00024 **  File Author(s):
00025 **
00026 **    Harry Storbacka
00027 **    Magnus Norddahl
00028 */
00029 
00032 
00033 #pragma once
00034 
00035 #include "../api_core.h"
00036 #include "../System/sharedptr.h"
00037 #include <vector>
00038 
00039 class CL_BezierCurve_Impl;
00040 class CL_Pointf;
00041 
00045 class CL_API_CORE CL_BezierCurve
00046 {
00049 
00050 public:
00052         CL_BezierCurve();
00053 
00054         virtual ~CL_BezierCurve();
00055 
00059 
00060 public:
00062         std::vector<CL_Pointf> get_control_points() const;
00063 
00067 
00068 public:
00070         void add_control_point(float x, float y);
00071 
00072         void add_control_point(const CL_Pointf &);
00073 
00075         std::vector<CL_Pointf> generate_curve_points(const CL_Angle &split_angle);
00076 
00078         CL_Pointf get_point_relative(float pos_0_to_1) const;
00079 
00083 
00084 private:
00085         CL_SharedPtr<CL_BezierCurve_Impl> impl;
00087 };
00088