This is tk_funcs.c in view mode; [Download] [Up]
/*-
* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)tk_funcs.c 8.10 (Berkeley) 6/17/96";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <ctype.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "../common/common.h"
#include "../vi/vi.h"
#include "tki.h"
/*
* tk_addstr --
* Add len bytes from the string at the cursor, advancing the cursor.
*
* PUBLIC: int tk_addstr __P((SCR *, const char *, size_t));
*/
int
tk_addstr(sp, str, len)
SCR *sp;
const char *str;
size_t len;
{
TK_PRIVATE *tkp;
int iv;
char buf[20];
iv = 0;
tkp = TKP(sp);
if (iv)
(void)Tcl_Eval(tkp->interp, "tk_standout");
(void)snprintf(buf, sizeof(buf), "%d ", (int)len);
if ((Tcl_VarEval(tkp->interp,
"tk_addstr ", buf, "{", str, "}", NULL) != TCL_OK))
return (1);
if (iv)
(void)Tcl_Eval(tkp->interp, "tk_standend");
return (0);
}
/*
* tk_attr --
* Toggle a screen attribute on/off.
*
* PUBLIC: int tk_attr __P((SCR *, scr_attr_t, int));
*/
int
tk_attr(sp, attribute, on)
SCR *sp;
scr_attr_t attribute;
int on;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
switch (attribute) {
case SA_ALTERNATE: /* No alternate screen. */
break;
case SA_INVERSE:
if (on)
(void)Tcl_Eval(tkp->interp, "tk_standout");
else
(void)Tcl_Eval(tkp->interp, "tk_standend");
break;
default:
abort();
}
return (0);
}
/*
* tk_baud --
* Return the baud rate.
*
* PUBLIC: int tk_baud __P((SCR *, u_long *));
*/
int
tk_baud(sp, ratep)
SCR *sp;
u_long *ratep;
{
*ratep = 9600;
return (0);
}
/*
* tk_bell --
* Ring the bell/flash the screen.
*
* PUBLIC: int tk_bell __P((SCR *));
*/
int
tk_bell(sp)
SCR *sp;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
return (Tcl_Eval(tkp->interp, "tk_flash") != TCL_OK);
}
/*
* tk_clrtoeol --
* Clear from the current cursor to the end of the line.
*
* PUBLIC: int tk_clrtoeol __P((SCR *));
*/
int
tk_clrtoeol(sp)
SCR *sp;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
return (Tcl_Eval(tkp->interp, "tk_clrtoeol") != TCL_OK);
}
/*
* tk_cursor --
* Return the current cursor position.
*
* PUBLIC: int tk_cursor __P((SCR *, size_t *, size_t *));
*/
int
tk_cursor(sp, yp, xp)
SCR *sp;
size_t *yp, *xp;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
*yp = (tkp->tk_cursor_row - 1) - sp->woff;
*xp = tkp->tk_cursor_col;
return (0);
}
/*
* tk_deleteln --
* Delete the current line, scrolling all lines below it.
*
* PUBLIC: int tk_deleteln __P((SCR *));
*/
int
tk_deleteln(sp)
SCR *sp;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
return (Tcl_Eval(tkp->interp, "tk_deleteln") != TCL_OK);
}
/*
* tk_ex_adjust --
* Adjust the screen for ex.
*
* PUBLIC: int tk_ex_adjust __P((SCR *, exadj_t));
*/
int
tk_ex_adjust(sp, action)
SCR *sp;
exadj_t action;
{
abort();
/* NOTREACHED */
}
/*
* tk_insertln --
* Push down the current line, discarding the bottom line.
*
* PUBLIC: int tk_insertln __P((SCR *));
*/
int
tk_insertln(sp)
SCR *sp;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
return (Tcl_Eval(tkp->interp, "tk_insertln") != TCL_OK);
}
/*
* tk_keyval --
* Return the value for a special key.
*
* PUBLIC: int tk_keyval __P((SCR *, scr_keyval_t, CHAR_T *, int *));
*/
int
tk_keyval(sp, val, chp, dnep)
SCR *sp;
scr_keyval_t val;
CHAR_T *chp;
int *dnep;
{
TK_PRIVATE *tkp;
/*
* VEOF, VERASE and VKILL are required by POSIX 1003.1-1990,
* VWERASE is a 4BSD extension.
*/
tkp = TKP(sp);
switch (val) {
case KEY_VEOF:
*dnep = (*chp = tkp->orig.c_cc[VEOF]) == _POSIX_VDISABLE;
break;
case KEY_VERASE:
*dnep = (*chp = tkp->orig.c_cc[VERASE]) == _POSIX_VDISABLE;
break;
case KEY_VKILL:
*dnep = (*chp = tkp->orig.c_cc[VKILL]) == _POSIX_VDISABLE;
break;
#ifdef VWERASE
case KEY_VWERASE:
*dnep = (*chp = tkp->orig.c_cc[VWERASE]) == _POSIX_VDISABLE;
break;
#endif
default:
*dnep = 1;
break;
}
return (0);
}
/*
* tk_move --
* Move the cursor.
*
* PUBLIC: int tk_move __P((SCR *, size_t, size_t));
*/
int
tk_move(sp, lno, cno)
SCR *sp;
size_t lno, cno;
{
TK_PRIVATE *tkp;
char buf[40];
(void)snprintf(buf, sizeof(buf), "%d %d", RLNO(sp, lno), cno);
tkp = TKP(sp);
return (Tcl_VarEval(tkp->interp, "tk_move ", buf, NULL) != TCL_OK);
}
/*
* tk_refresh --
* Refresh the screen.
*
* PUBLIC: int tk_refresh __P((SCR *, int));
*/
int
tk_refresh(sp, repaint)
SCR *sp;
int repaint;
{
TK_PRIVATE *tkp;
/*
* If repaint is set, the editor is telling us that we don't know
* what's on the screen, so we have to repaint from scratch.
*
* XXX
* I have no idea how to do this in Tk. My guess is that we have
* to delete all of the text and call the editor with an E_REPAINT
* event.
*/
if (repaint) {
}
tkp = TKP(sp);
return (Tcl_Eval(tkp->interp, "update idletasks") != TCL_OK);
}
/*
* tk_rename --
* Rename the file.
*
* PUBLIC: int tk_rename __P((SCR *));
*/
int
tk_rename(sp)
SCR *sp;
{
TK_PRIVATE *tkp;
tkp = TKP(sp);
return (Tcl_VarEval(tkp->interp,
"tk_rename ", sp->frp->name, NULL) != TCL_OK);
}
/*
* tk_suspend --
* Suspend a screen.
*
* PUBLIC: int tk_suspend __P((SCR *, int *));
*/
int
tk_suspend(sp, allowedp)
SCR *sp;
int *allowedp;
{
*allowedp = 0;
return (0);
}
/*
* tk_usage --
* Print out the Tk/Tcl usage messages.
*
* PUBLIC: void tk_usage __P((void));
*/
void
tk_usage()
{
#define USAGE "\
usage: tkvi [-eFlRrv] [-c command] [-bg color] [-fg color]\n\
[-geometry widthxheight+x+y] [-i script] [-t tag] [-w size]\n\
[file ...]\n"
(void)fprintf(stderr, "%s", USAGE);
#undef USAGE
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.