freetypeFont.h

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/*
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This source file is part of OpenSpace3D
For the latest info, see http://www.openspace3d.com
 
Copyright (c) 2012 I-maginer
 
This program 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 program 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt
 
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*/
 
#ifndef __BTK_FREETYPEFONT_H__
#define __BTK_FREETYPEFONT_H__
 
#include <opencv2/core.hpp>
#include <opencv2/imgproc.hpp>
#include <opencv2/imgproc/imgproc_c.h> // for CV_AA
#include "opencv2/opencv_modules.hpp"
 
#include <iostream>
#include <cstdio>
#include <vector>
 
#include <ft2build.h>
#include FT_CACHE_H
#include FT_GLYPH_H
#include FT_BITMAP_H
 
#include FT_FREETYPE_H
#include FT_OUTLINE_H
#include FT_IMAGE_H
#include FT_BBOX_H
 
#include <hb.h>
#include <hb-ft.h>
 
namespace cv {
  namespace freetype {
    class FreeTypeFont : public Algorithm
    {
    public:
      virtual bool loadFontData(String fontFileName, int idx) = 0;
 
      virtual bool loadFontData(const FT_Byte* fontData, FT_Long fontDataSize, int idx) = 0;
 
      virtual void setSplitNumber(int num) = 0;
 
      virtual void putText(
        InputOutputArray img, const String& text, Point org,
        int fontHeight, Scalar color,
        int thickness, int line_type, bool bottomLeftOrigin
      ) = 0;
 
      virtual Size getTextSize(const String& text,
        int fontHeight, int thickness,
        CV_OUT int* baseLine) = 0;
 
    };
 
    Ptr<FreeTypeFont> createFreeTypeFont();
 
  }
} // namespace freetype
 
#endif //__BTK_FREETYPEFONT_H__