TildeClub/ex-vi
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* The screen buffers for visual mode are now dynamically allocated, so

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vi usually does not return to ex mode with "screen too large" when the
  terminal is resized on a large monitor anymore.
This commit is contained in:
Gunnar Ritter
2005-08-04 12:09:59 +00:00
parent c69b1ee369
commit 2b70d8e5eb
15 changed files with 72 additions and 57 deletions
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40
ex_v.c
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@@ -73,7 +73,7 @@
#ifndef lint
#ifdef DOSCCS
static char sccsid[] = "@(#)ex_v.c 1.17 (gritter) 11/27/04";
static char sccsid[] = "@(#)ex_v.c 1.18 (gritter) 8/4/05";
#endif
#endif
@@ -126,20 +126,41 @@ static char sccsid[] = "@(#)ex_v.c 1.17 (gritter) 11/27/04";
*/
JMP_BUF venv;
static cell *atube;
/*
* Determine and set the size for visual mode buffers.
*/
static void
tubesizes(void)
{
TUBELINES = TLINES;
/*
* TUBECOLS should stay at 160 at least since this defines the
* maximum length of opening on hardcopies and allows two lines
* of open on terminals like adm3's (glass tty's) where it
* switches to pseudo hardcopy mode when a line gets longer
* than 80 characters.
*/
TUBECOLS = TCOLUMNS < 160 ? 160 : TCOLUMNS;
TUBESIZE = TLINES * TCOLUMNS;
free(vlinfo);
free(vtube);
free(atube);
vlinfo = malloc((TUBELINES+2) * sizeof *vlinfo);
vtube = malloc(TUBELINES * sizeof *vtube);
atube = malloc((TUBESIZE + LBSIZE) * sizeof *atube);
if (vlinfo == NULL || vtube == NULL || atube == NULL)
error("Screen too large");
}
/*
* Enter open mode
*/
#ifdef u370
cell atube[TUBESIZE+LBSIZE];
#endif
void
oop(void)
{
register char *ic;
#ifndef u370
cell atube[TUBESIZE + LBSIZE];
#endif
struct termios f; /* mjm: was register */
int resize;
@@ -150,6 +171,7 @@ oop(void)
inopen = 0;
addr1 = addr2 = dot;
}
tubesizes();
#ifdef SIGWINCH
signal(SIGWINCH, onwinch);
#endif
@@ -258,9 +280,6 @@ void
vop(void)
{
register int c;
#ifndef u370
cell atube[TUBESIZE + LBSIZE];
#endif
struct termios f; /* mjm: was register */
int resize;
@@ -299,6 +318,7 @@ toopen:
inopen = 0;
addr1 = addr2 = dot;
}
tubesizes();
#ifdef SIGWINCH
signal(SIGWINCH, onwinch);
#endif