lyx_mirror/src/trans_mgr.h

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// -*- C++ -*-
/**
* \file trans_mgr.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bj<EFBFBD>nnes
* \author Matthias Ettrich
* \author John Levon
*
* Full author contact details are available in file CREDITS.
*/
#ifndef TRANS_MANAGER_H
#define TRANS_MANAGER_H
#include "chset.h"
#include "trans_decl.h"
#include <boost/scoped_ptr.hpp>
namespace lyx {
class LyXText;
class Trans;
/// Translation state
class TransState {
public:
///
virtual ~TransState() {}
///
virtual std::string const normalkey(char) = 0;
///
virtual bool backspace() = 0;
///
virtual std::string const deadkey(char, KmodInfo) = 0;
///
static char const TOKEN_SEP;
};
/// Translation FSM
class TransFSMData {
protected:
///
virtual ~TransFSMData() {}
///
char deadkey_;
///
KmodInfo deadkey_info_;
///
char deadkey2_;
///
KmodInfo deadkey2_info_;
///
Keyexc comb_info_;
///
TransState * init_state_;
///
TransState * deadkey_state_;
///
TransState * combined_state_;
///
public:
///
TransFSMData();
///
TransState * currentState;
};
/// Init State
class TransInitState :virtual public TransFSMData, public TransState {
public:
///
TransInitState();
///
virtual std::string const normalkey(char);
///
virtual bool backspace() { return true; }
///
virtual std::string const deadkey(char, KmodInfo);
};
/// Deadkey State
class TransDeadkeyState : virtual public TransFSMData, public TransState {
public:
///
TransDeadkeyState();
///
virtual std::string const normalkey(char);
///
virtual bool backspace() {
currentState = init_state_;
return false;
}
///
virtual std::string const deadkey(char, KmodInfo);
};
/// Combined State
class TransCombinedState : virtual public TransFSMData, public TransState {
public:
///
TransCombinedState();
///
virtual std::string const normalkey(char);
///
virtual bool backspace() {
// cancel the second deadkey
deadkey2_ = 0;
deadkey2_info_.accent = TEX_NOACCENT;
currentState = deadkey_state_;
return false;
}
///
virtual std::string const deadkey(char, KmodInfo);
};
///
class TransFSM : virtual public TransFSMData,
public TransInitState,
public TransDeadkeyState,
public TransCombinedState {
public:
///
TransFSM();
};
///
class TransManager {
private:
///
TransFSM trans_fsm_;
///
Trans * active_;
///
boost::scoped_ptr<Trans> t1_;
///
boost::scoped_ptr<Trans> t2_;
///
static Trans default_;
///
CharacterSet chset_;
///
void insert(std::string const &, LyXText *);
///
void insertVerbatim(std::string const &, LyXText *);
public:
///
TransManager();
///
~TransManager();
///
int setPrimary(std::string const &);
///
int setSecondary(std::string const &);
///
void enablePrimary();
///
void enableSecondary();
///
void disableKeymap();
///
bool setCharset(std::string const &);
///
bool backspace() {
return trans_fsm_.currentState->backspace();
}
///
void translateAndInsert(char, LyXText *);
///
std::string const deadkey(char, KmodInfo);
///
std::string const normalkey(char);
///
void deadkey(char, tex_accent, LyXText *);
};
inline
std::string const TransManager::normalkey(char c)
{
return trans_fsm_.currentState->normalkey(c);
}
inline
std::string const TransManager::deadkey(char c, KmodInfo t)
{
return trans_fsm_.currentState->deadkey(c, t);
}
} // namespace lyx
#endif // TRANS_MANAGER_H