lyx_mirror/src/trans_mgr.h

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// -*- C++ -*-
#ifndef Trans_Manager_h
#define Trans_Manager_h
#ifdef __GNUG__
#pragma interface
#endif
#include "tex-accent.h"
#include "trans_decl.h"
#include "chset.h"
#include "LString.h"
class LyXText;
class Trans;
/// Translation State
class TransState {
public:
///
virtual ~TransState() {}
///
virtual string normalkey(char, char *) = 0;
///
virtual bool backspace() = 0;
///
virtual string 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_;
///
KmodException 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 string normalkey(char, char *);
///
virtual bool backspace() { return true; }
///
virtual string deadkey(char, KmodInfo);
};
/// Deadkey State
class TransDeadkeyState :
virtual public TransFSMData,
public TransState {
public:
///
TransDeadkeyState();
///
virtual string normalkey(char, char *);
///
virtual bool backspace() {
currentState = init_state_;
return false;
}
///
virtual string deadkey(char, KmodInfo);
};
/// Combined State
class TransCombinedState:
virtual public TransFSMData,
public TransState {
public:
///
TransCombinedState();
///
virtual string normalkey(char, char *);
///
virtual bool backspace() {
// cancel the second deadkey
deadkey2_ = 0;
deadkey2_info_.accent = TEX_NOACCENT;
currentState = deadkey_state_;
return false;
}
///
virtual string deadkey(char, KmodInfo);
};
///
class TransFSM :
virtual public TransFSMData,
public TransInitState,
public TransDeadkeyState,
public TransCombinedState
{
public:
///
TransFSM();
};
///
class TransManager {
private:
///
TransFSM trans_fsm_;
///
Trans * active_;
///
Trans * t1_;
///
Trans * t2_;
///
static Trans * default_;
///
CharacterSet chset_;
///
void insert(string const &, LyXText *);
///
void insertVerbatim(string const &, LyXText *);
public:
///
TransManager();
///
virtual ~TransManager();
///
int SetPrimary(string const &);
///
int SetSecondary(string const &);
///
void EnablePrimary();
///
void EnableSecondary();
///
void DisableKeymap();
///
bool setCharset(const char *);
///
bool backspace() {
return trans_fsm_.currentState->backspace();
}
///
void TranslateAndInsert(char, LyXText *);
///
inline string deadkey(char, KmodInfo);
///
inline string normalkey(char, char *);
///
void deadkey(char, tex_accent, LyXText *);
};
string TransManager::normalkey(char c, char * t)
{
return trans_fsm_.currentState->normalkey(c, t);
}
string TransManager::deadkey(char c, KmodInfo t)
{
return trans_fsm_.currentState->deadkey(c, t);
}
#endif