VirtualScrollableSurface.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 VIRTUALSCROLLABLESURFACE_HH_
# define VIRTUALSCROLLABLESURFACE_HH_

# include "Input.hh"
# include "VirtualSurface.hh"

class VirtualScrollableSurface : public VirtualSurface
{
public:
  VirtualScrollableSurface(const std::string& name,
                           Input& input,
                           const Point& real_size,
                           const Point& virtual_size);
  VirtualScrollableSurface(const std::string& name,
                           Input& input,
                           SDL_Surface* surf,
                           const Point& virtual_size);
  ~VirtualScrollableSurface();

  //   only if the visible/printed surface is larger than logical surface.
  void setAutomaticAdjust(bool enable);
  
  void moveScreenRect(const Point& to);

  virtual Rect getRenderRect() const;

  virtual Rect getScreenRect() const;

  virtual void setPos(const Point& to);
  
  virtual void update();

  virtual void blit(Surface& to);
  virtual void blit(Surface& to, const Rect& to_rect, const Rect& from_rect);

private:
  void adjustSize(const Rect& rect);

  Input&        inp_;

  Point         real_size_;     
  Point         vpos_;          
  Point         dec_;           
  unsigned      last_updated_;  

  bool      adjust_to_center_;
  bool      adjust_x_;        
  bool      adjust_y_;        
  Point     adjust_orig_pos_; 
};

#endif /* !VIRTUALSCROLLABLESURFACE_HH_ */