keys.h

/*
 *  Copyright (C) 2001-2013 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-compat.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;
	std::vector<std::string> mapedithelp;
	std::vector<std::string> last_created_key;
	void LoadFromFileInternal(const char *filename);
	KeyMap::const_iterator TranslateEvent(SDL_Event const &ev) const;
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();
		mapedithelp.clear();
		last_created_key.clear();
	}
	bool DoAction(ActionType const &action, bool press) const;
	bool HandleEvent(SDL_Event const &ev) const;
	bool IsMotionEvent(SDL_Event const &ev) const;

	void LoadFromFile(const char *filename);
	void LoadFromPatch();
	void LoadDefaults();
	void ShowHelp() const;
	void ShowCheatHelp() const;
	void ShowMapeditHelp() const;
	void ShowBrowserKeys() const;
private:
	void ParseText(char *text, int len);
	void ParseLine(char *line);
	void FillParseMaps();
};

#endif /* KEYS_H */