ResourceCenter.hh

/*
** TowBowlTactics, a turn-based strategy football game.
** 
** Copyright (C) 2006-2010 The TBT Team.
** 
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License
** as published by the Free Software Foundation; either version 2
** of the License, or (at your option) any later version.
** 
** The complete GNU General Public Licence Notice can be found as the
** `NOTICE' file in the root directory.
** 
** The TBT Team consists of people listed in the `AUTHORS' file.
*/

#ifndef RESOURCECENTER_HH_
# define RESOURCECENTER_HH_

# include <SDL.h>
# include "tools.hh"
# include "Surface.hh"

class SDLError : public Exception
{
public:
  SDLError(const std::string& msg);
};

class TTFError : public Exception
{
public:
  TTFError(const std::string& msg);
};

// Forward decl for TTF_Font.
struct _TTF_Font;
typedef struct _TTF_Font TTF_Font;

class ResourceCenter
{
public:
  ResourceCenter();
  ~ResourceCenter();

  static ResourceCenter* getInst();

  const std::string& getResourcePrefix() const;
  
  void setResourcePrefix(const std::string& prefix = "");
  
  Surface getImage(const std::string& filename, double zoom = 1., double angle = 0.);

  TTF_Font* getFont(const std::string font_name, int font_size);

  void releaseFont(TTF_Font* font);

  void printStatistics();

private:
  SDL_Surface* loadImage(const std::string& filename);

  SDL_Surface* transformImage(SDL_Surface* from, double zoom, double angle);

  static ResourceCenter* inst_;

  std::string prefix_;
  
  typedef std::set<Surface, Surface::ImgSort> ImageList;
  ImageList             image_list_;

  struct LoadedFont {
    TTF_Font* font_;    
    std::string name_;  
    int size_;          
    int ref_count_;     
    friend bool operator< (const LoadedFont& lhs, const LoadedFont& rhs)
    {
      if (lhs.name_ < rhs.name_)
        return true;
      if (lhs.name_ > rhs.name_)
    return false;
      return lhs.size_ < rhs.size_;
    }
  };
  typedef std::set<LoadedFont> FontList;
  FontList font_list_;
};

#endif /* !RESOURCECENTER_HH_ */