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kc3-lang/ftgl/src/FTGL/FTPoint.h
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- src/FTGL/FTPoint.h
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/* * FTGL - OpenGL font library * * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz> * Copyright (c) 2008 Sam Hocevar <sam@zoy.org> * Copyright (c) 2008 Sean Morrison <learner@brlcad.org> * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef __ftgl__ # warning This header is deprecated. Please use <FTGL/ftgl.h> from now. # include <FTGL/ftgl.h> #endif #ifndef __FTPoint__ #define __FTPoint__ #ifdef __cplusplus /** * FTPoint class is a basic 3-dimensional point or vector. */ class FTGL_EXPORT FTPoint { public: /** * Default constructor. Point is set to zero. */ inline FTPoint() { values[0] = 0; values[1] = 0; values[2] = 0; } /** * Constructor. Z coordinate is set to zero if unspecified. * * @param x First component * @param y Second component * @param z Third component */ inline FTPoint(const FTGL_DOUBLE x, const FTGL_DOUBLE y, const FTGL_DOUBLE z = 0) { values[0] = x; values[1] = y; values[2] = z; } /** * Constructor. This converts an FT_Vector to an FTPoint * * @param ft_vector A freetype vector */ inline FTPoint(const FT_Vector& ft_vector) { values[0] = ft_vector.x; values[1] = ft_vector.y; values[2] = 0; } /** * Normalise a point's coordinates. If the coordinates are zero, * the point is left untouched. * * @return A vector of norm one. */ FTPoint Normalise(); /** * Operator += In Place Addition. * * @param point * @return this plus point. */ inline FTPoint& operator += (const FTPoint& point) { values[0] += point.values[0]; values[1] += point.values[1]; values[2] += point.values[2]; return *this; } /** * Operator + * * @param point * @return this plus point. */ inline FTPoint operator + (const FTPoint& point) const { FTPoint temp; temp.values[0] = values[0] + point.values[0]; temp.values[1] = values[1] + point.values[1]; temp.values[2] = values[2] + point.values[2]; return temp; } /** * Operator -= In Place Substraction. * * @param point * @return this minus point. */ inline FTPoint& operator -= (const FTPoint& point) { values[0] -= point.values[0]; values[1] -= point.values[1]; values[2] -= point.values[2]; return *this; } /** * Operator - * * @param point * @return this minus point. */ inline FTPoint operator - (const FTPoint& point) const { FTPoint temp; temp.values[0] = values[0] - point.values[0]; temp.values[1] = values[1] - point.values[1]; temp.values[2] = values[2] - point.values[2]; return temp; } /** * Operator * Scalar multiplication * * @param multiplier * @return <code>this</code> multiplied by <code>multiplier</code>. */ inline FTPoint operator * (double multiplier) { FTPoint temp; temp.values[0] = values[0] * multiplier; temp.values[1] = values[1] * multiplier; temp.values[2] = values[2] * multiplier; return temp; } /** * Operator * Scalar multiplication * * @param point * @param multiplier * @return <code>multiplier</code> multiplied by <code>point</code>. */ inline friend FTPoint operator * (double multiplier, FTPoint& point) { return point * multiplier; } /** * Operator * Scalar product * * @param a First vector. * @param b Second vector. * @return <code>a.b</code> scalar product. */ inline friend double operator * (FTPoint &a, FTPoint& b) { return a.values[0] * b.values[0] + a.values[1] * b.values[1] + a.values[2] * b.values[2]; } /** * Operator ^ Vector product * * @param point Second point * @return this vector point. */ inline FTPoint operator ^ (const FTPoint& point) { FTPoint temp; temp.values[0] = values[1] * point.values[2] - values[2] * point.values[1]; temp.values[1] = values[2] * point.values[0] - values[0] * point.values[2]; temp.values[2] = values[0] * point.values[1] - values[1] * point.values[0]; return temp; } /** * Operator == Tests for equality * * @param a * @param b * @return true if a & b are equal */ friend bool operator == (const FTPoint &a, const FTPoint &b); /** * Operator != Tests for non equality * * @param a * @param b * @return true if a & b are not equal */ friend bool operator != (const FTPoint &a, const FTPoint &b); /** * Cast to FTGL_DOUBLE* */ inline operator const FTGL_DOUBLE*() const { return values; } /** * Setters */ inline void X(FTGL_DOUBLE x) { values[0] = x; }; inline void Y(FTGL_DOUBLE y) { values[1] = y; }; inline void Z(FTGL_DOUBLE z) { values[2] = z; }; /** * Getters */ inline FTGL_DOUBLE X() const { return values[0]; }; inline FTGL_DOUBLE Y() const { return values[1]; }; inline FTGL_DOUBLE Z() const { return values[2]; }; inline FTGL_FLOAT Xf() const { return static_cast<FTGL_FLOAT>(values[0]); }; inline FTGL_FLOAT Yf() const { return static_cast<FTGL_FLOAT>(values[1]); }; inline FTGL_FLOAT Zf() const { return static_cast<FTGL_FLOAT>(values[2]); }; private: /** * The point data */ FTGL_DOUBLE values[3]; }; #endif //__cplusplus #endif // __FTPoint__