CairoRenderer2D.hpp

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/* 
 * CairoRenderer2D.hpp 
 *
 * This file is part of the Chemical Data Processing Toolkit
 *
 * Copyright (C) 2003 Thomas Seidel <thomas.seidel@univie.ac.at>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; see the file COPYING. If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
#ifndef CDPL_VIS_CAIRORENDERER2D_HPP
#define CDPL_VIS_CAIRORENDERER2D_HPP
 
#include <vector>
 
#include "CDPL/Vis/APIPrefix.hpp"
#include "CDPL/Vis/Renderer2D.hpp"
#include "CDPL/Vis/Pen.hpp"
#include "CDPL/Vis/Brush.hpp"
#include "CDPL/Vis/Font.hpp"
#include "CDPL/Vis/CairoPointer.hpp"
 
 
typedef struct _cairo cairo_t;
 
 
namespace CDPL
{
 
    namespace Vis
    {
 
        class CDPL_VIS_API CairoRenderer2D : public Renderer2D
        {
 
          public:
            CairoRenderer2D(const CairoPointer<cairo_t>& cairo_ctxt);
 
            ~CairoRenderer2D();
 
            void saveState();
            void restoreState();
 
            void setTransform(const Math::Matrix3D& xform);
            void transform(const Math::Matrix3D& xform);
 
            void setPen(const Pen& pen);
            void setBrush(const Brush& brush);
            void setFont(const Font& font);
 
            void drawRectangle(double x1, double y1, double x2, double y2);
            void drawPolygon(const Math::Vector2DArray& points);
            void drawLine(double x1, double y1, double x2, double y2);
            void drawPolyline(const Math::Vector2DArray& points);
            void drawLineSegments(const Math::Vector2DArray& points);
            void drawPoint(double x, double y);
            void drawText(double x, double y, const std::string& txt);
            void drawEllipse(double x, double y, double width, double height);
            void drawPath(const Path2D& path);
 
            void setClipPath(const Path2D& path);
            void clearClipPath();
 
          private:
            void fillPath() const;
            void strokePath() const;
 
            typedef std::vector<Pen>   PenStack;
            typedef std::vector<Brush> BrushStack;
            typedef std::vector<Font>  FontStack;
 
            CairoPointer<cairo_t> cairoContext;
            PenStack              penStack;
            BrushStack            brushStack;
            FontStack             fontStack;
        };
    } // namespace Vis
} // namespace CDPL
 
#endif // CDPL_VIS_CAIRORENDERER2D_HPP