cool bitmap font thing header (font.hpp)

#ifndef _UTILS_FONT_HPP
#define _UTILS_FONT_HPP
//todo: make function to swap renderers

#include <SDL2/SDL.h>

#include <string>


extern const Uint8 font8x8_default[1024];


class font8x8 {
  SDL_bool _valid = SDL_FALSE; //used for method call checks

  SDL_Renderer* _renderer    = nullptr;
  SDL_Surface*  _fontSurface = nullptr;
  SDL_Texture*  _fontTexture = nullptr;

  SDL_Color _palette[2] = {{0},{0}}; //bg and text palette colors respectively
  SDL_Point _scale = {8,8}; //1x scale by default


  void _freeSurfaceSafely(){
    if(_fontSurface != nullptr){
      SDL_FreeSurface(_fontSurface);
      _fontSurface = nullptr;
    }
  }

  void _freeTextureSafely(){
    if(_fontTexture != nullptr){
      SDL_DestroyTexture(_fontTexture);
      _fontTexture = nullptr;
    }
  }


public:
  SDL_bool isValid(){ return _valid; }

  font8x8(SDL_Renderer* renderer, const Uint8* table = font8x8_default);

  ~font8x8(){
    _freeSurfaceSafely();
    _freeTextureSafely();
  }


  SDL_Color getBackgroundColor(){ return _palette[0]; }
  SDL_Color getTextColor(){ return _palette[1]; }
  void setPalette(SDL_Color background, SDL_Color text);

  float getScaleX(){ return (float)_scale.x/8; }
  float getScaleY(){ return (float)_scale.y/8; }
  void setScale(SDL_FPoint scale){
    _scale.x = scale.x*8 + 0.5f;
    _scale.y = scale.y*8 + 0.5f;
  }


  void putCharRaw(char chr, int x, int y);
  void putChar(char chr, int column, int row){ //align char position to scale
    putCharRaw(chr, column*_scale.x, row*_scale.y);
  }

  void printRaw(const std::string& txt, int x, int y);
  void print(const std::string& txt, int column, int row){
    printRaw(txt, column*_scale.x, row*_scale.y); //basically same thing as putChar
  }
};


#endif /* _UTILS_FONT_HPP */