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Revise terminal interfaces.

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This commit is contained in:
Renaud 2021-08-18 11:35:17 +08:00
parent 5f3b42f448
commit d99b7fcbac
5 changed files with 53 additions and 64 deletions
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15
posix.c
View File

@ -26,12 +26,11 @@
#include "retcode.h"
#include "utf8.h"
int ttrow = HUGE ; /* Row location of HW cursor */
int ttcol = HUGE ; /* Column location of HW cursor */
int ttrow = -1 ; /* Row location of HW cursor */
int ttcol = -1 ; /* Column location of HW cursor */
/* Since Mac OS X's termios.h doesn't have the following 2 macros, define them.
*/
#if BSD || defined(SYSV) && (defined(_DARWIN_C_SOURCE) || defined(_FREEBSD_C_SOURCE))
/* Define missing macroes for BSD and CYGWIN environment */
#if BSD
#define OLCUC 0000002
#define XCASE 0000004
#endif
@ -94,10 +93,8 @@ void ttopen(void)
kbdflgs = fcntl(0, F_GETFL, 0);
kbdpoll = FALSE;
/* on all screens we are not sure of the initial position
of the cursor */
ttrow = 999;
ttcol = 999;
/* on all screens we are not sure of the initial position of the cursor */
ttrow = ttcol = -1 ;
}
/*

8
tcap.c
View File

@ -83,7 +83,7 @@ static char *_UP, _PC, *CM, *CE, *CL, *SO, *SE;
static char *CS, *DL, *AL, *SF, *SR;
# endif
struct terminal term = {
terminal_t term = {
480, /* actual 479 on 2560x1440 landscape terminal window */
2550, /* actual 2541 */
0, /* These four values are set dynamically at open time. */
@ -231,13 +231,11 @@ static void tcapclose(void)
}
# endif
static void tcapkopen(void)
{
static void tcapkopen( void) {
# if PKCODE
putpad( TI) ;
ttflush() ;
ttrow = 999;
ttcol = 999;
ttrow = ttcol = -1 ;
sgarbf = TRUE ;
# endif
strcpy(sres, "NORMAL") ;

43
terminal.h
View File

@ -6,15 +6,15 @@
#include "retcode.h"
#include "utf8.h"
/* The editor communicates with the display using a high level interface. A
* "TERM" structure holds useful variables, and indirect pointers to routines
* that do useful operations. The low level get and put routines are here too.
* This lets a terminal, in addition to having non standard commands, have
* funny get and put character code too. The calls might get changed to
* "termp->t_field" style in the future, to make it possible to run more than
* one terminal type.
/* The editor communicates with the display using a high level interface.
A "TERM" structure holds useful variables, and indirect pointers to
routines that do useful operations. The low level get and put routines
are here too. This lets a terminal, in addition to having non standard
commands, have funny get and put character code too. The calls might
get changed to "termp->t_field" style in the future, to make it possible
to run more than one terminal type.
*/
struct terminal {
typedef struct {
const short t_maxrow ; /* max number of rows allowable */
const short t_maxcol ; /* max number of columns allowable */
short t_mrow ; /* max number of rows displayable */
@ -22,19 +22,19 @@ struct terminal {
short t_mcol ; /* max number of rows displayable */
short t_ncol ; /* current number of columns displayed */
short t_margin ; /* min margin for extended lines */
short t_scrsiz; /* size of scroll region " */
short t_scrsiz ; /* size of scroll region */
int t_pause ; /* # times thru update to pause */
void (*t_open)(void); /* Open terminal at the start. */
void (*t_open)( void) ; /* Open terminal at the start */
void (*t_close)( void) ; /* Close terminal at end. */
void (*t_kopen)( void) ; /* Open keyboard */
void (*t_kclose)( void) ; /* close keyboard */
int (*t_getchar)(void); /* Get character from keyboard. */
int (*t_putchar)( unicode_t) ; /* Put character to display. */
void (*t_flush) (void); /* Flush output buffers. */
void (*t_move)(int, int);/* Move the cursor, origin 0. */
void (*t_eeol)(void); /* Erase to end of line. */
void (*t_eeop)(void); /* Erase to end of page. */
void (*t_beep)(void); /* Beep. */
int (*t_getchar)( void) ; /* Get character from keyboard */
int (*t_putchar)( unicode_t) ; /* Put character to display */
void (*t_flush) (void) ; /* Flush output buffers */
void (*t_move)( int, int) ; /* Move the cursor, origin 0 */
void (*t_eeol)( void) ; /* Erase to end of line */
void (*t_eeop)( void) ; /* Erase to end of page */
void (*t_beep)( void) ; /* Beep */
void (*t_rev)( int) ; /* set reverse video state */
int (*t_rez)( char *) ; /* change screen resolution */
#if COLOR
@ -44,7 +44,7 @@ struct terminal {
#if SCROLLCODE
void (*t_scroll)( int, int,int) ; /* scroll a region of the screen */
#endif
};
} terminal_t ;
/* TEMPORARY macros for terminal I/O (to be placed in a machine dependant
place later)
@ -68,11 +68,8 @@ struct terminal {
#define TTbacg (*term.t_setback)
#endif
/* Terminal table defined only in term.c */
extern struct terminal term ;
extern int ttrow ; /* Row location of HW cursor */
extern int ttcol ; /* Column location of HW cursor */
/* Terminal table defined only in tcap.c */
extern terminal_t term ;
extern boolean eolexist ; /* does clear to EOL exist? */
extern boolean revexist ; /* does reverse video exist? */

7
termio.c
View File

@ -21,8 +21,8 @@
#include <unistd.h>
#include <sys/ioctl.h>
int ttrow = HUGE ; /* Row location of HW cursor */
int ttcol = HUGE ; /* Column location of HW cursor */
int ttrow = -1 ; /* Row location of HW cursor */
int ttcol = -1 ; /* Column location of HW cursor */
#if USG /* System V */
@ -139,8 +139,7 @@ void ttopen(void)
/* on all screens we are not sure of the initial position
of the cursor */
ttrow = 999;
ttcol = 999;
ttrow = ttcol = -1 ;
}
/*

2
termio.h
View File

@ -6,8 +6,6 @@
#define TYPEAH 1 /* type ahead causes update to be skipped */
#define HUGE 1000 /* Huge number (for row/col) */
extern int ttrow ; /* Row location of HW cursor */
extern int ttcol ; /* Column location of HW cursor */