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CairoMatrix.hpp

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#ifndef IONFLUX_TOOLS_CAIRO_MATRIX
#define IONFLUX_TOOLS_CAIRO_MATRIX
/* ==========================================================================
 * Ionflux Tools
 * Copyright (c) 2005 Joern P. Meier
 * mail@ionflux.org
 * --------------------------------------------------------------------------
 * CairoMatrix.hpp                        Cairo matrix.
 * ==========================================================================
 * 
 * This file is part of Ionflux Tools.
 * 
 * Ionflux Tools is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the 
 * Free Software Foundation; either version 2 of the License, or (at your 
 * option) any later version.
 * 
 * Ionflux Tools is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along 
 * with Ionflux Tools; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 * 
 * ========================================================================== */

#include "cairo.h"
#include "ionflux/Matrix3.hpp"

namespace Ionflux
{

namespace Tools
{

namespace Cairo
{

struct Point
{
    double x;
    double y;
};

struct Distance
{
    double dx;
    double dy;
};

class Matrix
: public Ionflux::Tools::Matrix3
{
    private:
        
    protected:
        
    public:
        Matrix();
        
        Matrix(const Matrix& initMatrix);
        
        Matrix(const cairo_matrix_t& initMatrix);
        
        Matrix(double xx, double yx, double xy, double yy, double x0, double y0);
        
        virtual ~Matrix();
        
         void initIdentity();
        
         void initTranslate(double tx, double ty);
        
         void initScale(double sx, double sy);
        
         void initRotate(double radians);
        
         void translate(double tx, double ty);
        
         void scale(double sx, double sy);
        
         void rotate(double radians);
        
         void transformDistance(Distance& distance);
        
         void transformPoint(Point& point);
        
        virtual Matrix& operator=(const Matrix3& newMatrix);
        
        virtual Matrix& operator=(const Matrix& newCairoMatrix);
        
        virtual Matrix& operator=(const cairo_matrix_t& newCairoMatrix);
        
         void toCairoMatrix(cairo_matrix_t& cairoMatrix) const;
};

}

}

}

#endif

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