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Datei: trans_mgr.h Sprache: C

Original von: Lyx^©

// -*- C++ -*-
#ifndef _Trans_Manager_h_
#define _Trans_Manager_h_

#ifdef __GNUG__
#pragma interface
#endif

#include "tex-accent.h"
#include "trans_decl.h"

class LyXText;
class LString;
class CharacterSet;
class Trans;

/// Translation State
class TransState {
public:
///
virtual ~TransState();
///
virtual LString normalkey(char,char*)=0;
///
virtual bool backspace()=0;
///
virtual LString deadkey(char,KmodInfo)=0;
///
static const char 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 LString normalkey(char,char*);
  ///
  virtual bool backspace() { return true; }
  ///
  virtual LString deadkey(char,KmodInfo);
};

/// Deadkey State
class TransDeadkeyState:
virtual public TransFSMData,
public TransState {
public:
  ///
  TransDeadkeyState();
  ///
  virtual LString normalkey(char,char*);
  ///
  virtual bool backspace()
{
  currentState=init_state_;
  return false;
}
  ///
  virtual LString deadkey(char,KmodInfo);
};

/// Combined State
class TransCombinedState:
virtual public TransFSMData,
public TransState {
public:
  ///
  TransCombinedState();
  ///
  virtual LString normalkey(char,char*);
  ///
  virtual bool backspace()
{
  // cancel the second deadkey
  deadkey2_=0;
  deadkey2_info_.accent=TEX_NOACCENT;
  currentState=deadkey_state_;

  return false;
}
  ///
  virtual LString 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(LString,LyXText*);
///
void insertVerbatim(const LString&,LyXText*);
public:
///
TransManager();
///
virtual ~TransManager();
///
int SetPrimary(LString const &);
///
int SetSecondary(LString const &);
///
void EnablePrimary();
///
void EnableSecondary();
///
void DisableKeymap();
///
bool setCharset(const char*);
///
bool backspace()
{
  return trans_fsm_.currentState->backspace();
}
///
void TranslateAndInsert(char,LyXText*);
///
inline LString deadkey(char,KmodInfo);
///
inline LString normalkey(char,char*);
///
void deadkey(char,tex_accent,LyXText*);

};

LString TransManager::normalkey(char c,char *t)
{
return trans_fsm_.currentState->normalkey(c,t);
}

LString TransManager::deadkey(char c,KmodInfo t)
{
return trans_fsm_.currentState->deadkey(c,t);
}

#endif

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