emul.h

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/* emul.h
 * Copyright (c) 1997 David Cole
 *
 * Terminal emulation
 */
#ifndef __emul_h
#define __emul_h

#include "ctab.h"

/* Define key sequences for a terminal emulation
 */
#define MAX_F_KEY 20

#define ETF_ESC_PARO        3  /* how to handle "\E(" sequences */
#define ETF_ESC_PARO_LINUX  1     /* like LINUX */
#define ETF_ESC_PARO_VT320  2     /* like VT320+ */
#define ETF_MOUSE_EVENT     4  /*  does the terminal support mouse ev */

#define TERM_NAME_LEN  20
#define KEYCODE_LEN  8

typedef char KEYCODE[KEYCODE_LEN];

typedef struct {
    char  name[TERM_NAME_LEN];  /* name of terminal type */
    int   flags;                /* ETF_... */

    KEYCODE keyPageUp;		/* string to send for PageUp key */
    KEYCODE keyPageDown;
    KEYCODE keyHome;
    KEYCODE keyEnd;
    KEYCODE keyInsert;
    KEYCODE keyDelete;
    KEYCODE keyBacktab;
    KEYCODE keyBackSpace;         /* Standard BackSpace */
    KEYCODE keyAltBackSpace;      /* Alternate BackSpace */
    int   nMaxFkey;              /* Should be less or equal to MAX_F_KEY */
    KEYCODE keyF[MAX_F_KEY];     /* keyF[0]=F1.. keyF[19]=F20 */

    CodeTable ctGraphConv;         /* map graphics characters to vt100 std */
    CodeTable ctServerToOem;       /* map characters coming from server */
    CodeTable ctOemToServer;       /* map characters going to server */
    CodeTable ctServerToAnsi;      /* map characters coming from server */
    CodeTable ctAnsiToServer;      /* map ANSI codes to server charset */

    BOOL fAnsi;                    /* true if ANSI (any variant) */
} Emul;

typedef struct {
    unsigned int num;
    char** names;
} EmulNames;


/* Functions to access terminal definitions */
void telnetEnumTermProfiles(EmulNames* emuls);
void telnetGetTermProfile(Emul* emul, const char* name);
void telnetSaveTermProfile(Emul* emul, char* name);

/* Return pointer to terminal currently being emulated. */
Emul* emulGetTerm(void);
/* Set the terminal type to emulate by name */
void emulSetTerm(const char* name);
/* Set the from/to server charsets specified by name */
void emulSetCharset(const char *name);

/* Return current character attributes */
unsigned char getCurrAttr(void);

/* Process a stream of characters through terminal emulator */
void emulAddText(unsigned char* text, int len, BOOL bKeyboard);
/* Handle a normal key press */
void emulKeyPress(char ch);
/* Handle a function key press */
void emulFuncKeyPress(char* str);
/* Handle a function key press local/remote*/
void emulFuncKeyPress2(int localaction, char *str);

/* how to do local echoing */
#define EFK_LOCAL_SKIP      0 /* do nothing */
#define EFK_LOCAL_SAME      1 /* echo the same str */
#define EFK_LOCAL_BACKSPACE 2 /* delete charcter left to the cursor */
#define EFK_LOCAL_DELETE    3 /* delete charcter under the cursor */
#define EFK_LOCAL_INSERT    4 /* switch insert mode */
#define EFK_LOCAL_LEFT      5 /* cursor left */
#define EFK_LOCAL_RIGHT     6 /* cursor right */
#define EFK_LOCAL_HOME      7 /* cursor to begging of line */
#define EFK_LOCAL_END       8 /* cursor to end of line */
#define EFK_LOCAL_SEND      9 /* send in the current line */

/* Set terminal local echo mode on or off */
void emulSetEcho(BOOL echo);
/* Set terminal local flow control "resume with any character" on or off */
void emulLocalFlowAny(BOOL any);
/* Reset terminal to initial state */
void emulResetTerminal(void);

/* Define AnswerBack message */
void emulSetAnswerBack (int len, const char *from);

#endif