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