keys.h

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/*
 *  Copyright (C) 2001 The Exult 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.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef KEYS_H
#define KEYS_H

#include "SDL_events.h"
#include "game.h"

#include <vector>
#include <map>
#include <string>

const int c_maxparams = 4;

struct Action;
struct ActionType {
  const Action* action;
  int params[c_maxparams];
};

struct ltSDLkeysym
{
  bool operator()(SDL_keysym k1, SDL_keysym k2) const
  {
    if (k1.sym == k2.sym)
      return k1.mod < k2.mod;
    else
      return k1.sym < k2.sym;
  }
};

typedef std::map<SDL_keysym, ActionType, ltSDLkeysym>   KeyMap;

class KeyBinder {
 private:
  KeyMap bindings;
  
  std::vector<std::string> keyhelp;
  std::vector<std::string> cheathelp;
 public:
  KeyBinder();
  ~KeyBinder();
  /* Add keybinding */
  void AddKeyBinding(SDLKey sym, int mod, const Action* action,
             int nparams, int* params);
  
  /* Delete keybinding */
  void DelKeyBinding(SDLKey sym, int mod);
  
  /* Other methods */
  void Flush() { bindings.clear(); keyhelp.clear(); cheathelp.clear(); }
  bool DoAction(ActionType action, bool press);
  bool HandleEvent(SDL_Event &ev);
  
  void LoadFromFile(const char* filename);
  void LoadDefaults();
  
  void ShowHelp();
  void ShowCheatHelp();
  
 private:
  void ParseText(char *text, int len);
  void ParseLine(char *line);
  void FillParseMaps();
};

#endif /* KEYS_H */

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