Text2D.h

/*

Copyright (c) 2018, Johnathan Corkery. (jcorkery@umich.edu)
All rights reserved.

This file is part of the Dynacoe project (https://github.com/jcorks/Dynacoe)
Dynacoe was released under the MIT License, as detailed below.



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 H_DC_TEXT_2D_INCLUDED
#define H_DC_TEXT_2D_INCLUDED

#include <Dynacoe/Util/Chain.h>
#include <Dynacoe/Components/Render2D.h>
#include <Dynacoe/AssetID.h>
#include <Dynacoe/Color.h>

#include <map>


namespace Dynacoe {



class TextState;

class Text2D : public Render2D {
  public:
    Text2D(const std::string & str = std::string(""), const Color & color = Color("white"));

    ~Text2D();

    enum class SpacingMode {
        Kerned,    
        Monospace, 
        Bitmap     

    };

    void SetFont(AssetID font);

    void SetFontSize(int size);

    std::string text;


    void SetSpacingMode(SpacingMode mode);


    void SetTextColor(int charBegin, int charEnd, const Color & color);
    void SetTextColor(const Color & color);


    Vector GetCharPosition(int i);


    Vector GetDimensions();

    Vector GetDimensions(const std::string &);

    void OnDraw();
    std::string GetInfo();

  private:
      


    void ReRender();
    
    
    TextState * modeInst;

    void * fontFace;
    int fontSize;
    SpacingMode fontSpacing;
    std::string srcText;
    
    std::map<Color, uint32_t> colorLookup;
    std::vector<Color> colorStorage;
    std::vector<uint32_t> colorIndex;

    Renderer::Vertex2D * vertices;
    std::vector<Vector> offsets;
    uint32_t numVertices;
    uint32_t numVerticesAllocd;
    Vector dimensions;
    void Initialize(const std::string &, const Color &);
};
}    

#endif