font.hpp

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// Copyright 2022 Matthew Chandler
 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
#ifndef FONT_HPP
#define FONT_HPP
 
#include <memory>
#include <string>
#include <vector>
 
#include "types.hpp"
 
namespace textogl
{
    enum Text_origin: int
    {
        ORIGIN_HORIZ_BASELINE = 0x00, 
        ORIGIN_HORIZ_LEFT     = 0x01, 
        ORIGIN_HORIZ_RIGHT    = 0x02, 
        ORIGIN_HORIZ_CENTER   = 0x03, 
 
        ORIGIN_VERT_BASELINE  = 0x00, 
        ORIGIN_VERT_TOP       = 0x04, 
        ORIGIN_VERT_BOTTOM    = 0x08, 
        ORIGIN_VERT_CENTER    = 0x0C  
    };
 
 
    class Font_sys
    {
    public:
        Font_sys(const std::string & font_path, 
                 const unsigned int font_size   
                 );
 
        Font_sys(const unsigned char * font_data,  
                 const std::size_t font_data_size, 
                 const unsigned int font_size      
                 );
 
 
        void resize(const unsigned int font_size 
                    );
 
 
        void render_text(const std::string & utf8_input, 
                         const Color & color,            
                         const Vec2<float> & win_size,   
                         const Vec2<float> & pos,        
                         const int align_flags = 0       
                         );
 
 
        void render_text_rotate(const std::string & utf8_input, 
                                const Color & color,            
                                const Vec2<float> & win_size,   
                                const Vec2<float> & pos,        
                                const float rotation,           
                                const int align_flags = 0       
                                );
 
 
        void render_text_mat(const std::string & utf8_input,       
                             const Color & color,                  
                             const Mat4<float> & model_view_projection
                             );
 
    private:
        struct Impl; 
        std::shared_ptr<Impl> pimpl; 
 
        friend class Static_text;
    };
}
 
#endif // FONT_HPP