lyx_mirror/src/frontends/LyXKeySym.h

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// -*- C++ -*-
/**
* \file LyXKeySym.h
* Copyright 2002 the LyX Team
* Read the file COPYING
*
* \author Asger and Juergen
*/
#ifndef LYXKEYSYM_H
#define LYXKEYSYM_H
#include "LString.h"
#include <boost/shared_ptr.hpp>
/**
* This is a base class for representing a keypress.
* Each frontend has to implement this to provide
* the functionality that LyX needs in regards to
* key presses.
*/
class LyXKeySym {
public:
LyXKeySym() {}
virtual ~LyXKeySym() {}
/// Initialize with the name of a key. F. ex. "space" or "a"
virtual void init(string const & symbolname) = 0;
/// Is this a valid key?
virtual bool isOK() const = 0;
/// Is this a modifier key only?
virtual bool isModifier() const = 0;
/// What is the symbolic name of this key? F.ex. "Return" or "c"
virtual string getSymbolName() const = 0;
/**
* Return the value of the keysym into the local ISO encoding.
* This converts the LyXKeySym to a 8-bit encoded character.
* This relies on user to use the right encoding.
*/
virtual char getISOEncoded() const = 0;
/**
* We need to be able to equality compare these for the
* sake of the keymap business.
*/
virtual bool operator==(LyXKeySym const & k) const = 0;
};
typedef boost::shared_ptr<LyXKeySym> LyXKeySymPtr;
#endif