OSGTextVectorGlyph.h

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
 *                                OpenSG                                     *
 *                                                                           *
 *                                                                           *
 *             Copyright (C) 2000-2002 by the OpenSG Forum                   *
 *                                                                           *
 *                            www.opensg.org                                 *
 *                                                                           *
 *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
 *                                                                           *
\*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*\
 *                                License                                    *
 *                                                                           *
 * This library is free software; you can redistribute it and/or modify it   *
 * under the terms of the GNU Library General Public License as published    *
 * by the Free Software Foundation, version 2.                               *
 *                                                                           *
 * 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         *
 * Library General Public License for more details.                          *
 *                                                                           *
 * You should have received a copy of the GNU Library General Public         *
 * License along with this library; if not, write to the Free Software       *
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
 *                                                                           *
\*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*\
 *                                Changes                                    *
 *                                                                           *
 *                                                                           *
 *                                                                           *
 *                                                                           *
 *                                                                           *
 *                                                                           *
\*---------------------------------------------------------------------------*/

#ifndef _OSGTEXTVECTORGLYPH_H_
#define _OSGTEXTVECTORGLYPH_H_

#ifdef _MSC_VER
# pragma once
#endif

#include <OSGConfig.h>
#include <OSGSystemDef.h>
#include <OSGBaseTypes.h>
#include <OSGVector.h>

#include "OSGTextGlyph.h"

#include <vector>
#include <map>


OSG_BEGIN_NAMESPACE


class OSG_SYSTEMLIB_DLLMAPPING TextVectorGlyph: public TextGlyph
{

  friend class TextVectorFace;

    /*==========================  PUBLIC  =================================*/
  public:

    struct OSG_SYSTEMLIB_DLLMAPPING Point
    {
        enum PointType
        {
            PT_ON,
            PT_QUAD,
            PT_CUBIC
        };
        
        Vec2f pos;
        
        PointType type;
        
        inline Point(const Vec2f &_pos, PointType _type);
    };

    typedef std::vector<Point> Contour;

    typedef std::vector<Contour> Outline;

    struct OSG_SYSTEMLIB_DLLMAPPING PolygonOutline
    {
        std::vector<Vec2f> coords;

        std::vector<UInt32> contours;

        std::vector<UInt32> indices;
        
        typedef std::pair<GLenum, UInt32> TypeIndex;

        std::vector<TypeIndex> types;
    };
    
    struct OSG_SYSTEMLIB_DLLMAPPING VertexNormal
    {
        Vec2f nextEdgeNormal;

        Vec2f meanEdgeNormal;

        Real32 edgeAngle;

        inline VertexNormal(const Vec2f &nextEdgeNormal_, const Vec2f &meanEdgeNormal_, Real32 edgeAngle_);
    };

    typedef std::vector<VertexNormal> Normals;

    virtual ~TextVectorGlyph();

    virtual Real32 getWidth() const;

    virtual Real32 getHeight() const;

    virtual Real32 getHoriBearingX() const;

    virtual Real32 getHoriBearingY() const;

    virtual Real32 getVertBearingX() const;

    virtual Real32 getVertBearingY() const;

    inline const Outline &getOutline() const;

    const PolygonOutline &getLines(UInt32 level = 2) const;

    const Normals &getNormals(UInt32 level = 2) const;

    enum Orientation
    {
        CW, CCW
    };

    const std::vector<Orientation> &getContourOrientations() const;

    /*=========================  PROTECTED  ===============================*/
  protected:

    inline TextVectorGlyph();
        
    Real32 _width;

    Real32 _height;

    Real32 _horiBearingX;

    Real32 _horiBearingY;

    Real32 _vertBearingX;

    Real32 _vertBearingY;

    Outline _outline;

    mutable std::vector<Orientation> _contourOrientations;
    
    typedef std::map<UInt32, PolygonOutline> PolygonOutlineMap;
  
    mutable PolygonOutlineMap _polygonOutlineMap;

    typedef std::map<UInt32, Normals> NormalMap;

    mutable NormalMap _normalMap;

    /*==========================  PRIVATE  ================================*/
  private:

    TextVectorGlyph(const TextVectorGlyph &);

    const TextVectorGlyph &operator=(const TextVectorGlyph &);

    void computeContourOrientations() const;
};


OSG_END_NAMESPACE


#include <OSGTextVectorGlyph.inl>

#define OSGTEXTVECTORGLYPH_HEADER_CVSID "@(#)$Id: OSGTextVectorGlyph.h,v 1.1 2005/03/03 13:43:07 a-m-z Exp $"

#endif /* _OSGTEXTVECTORGLYPH_H_ */

---