4.3BSD-Reno/src/contrib/jove/screen.c
/***************************************************************************
* This program is Copyright (C) 1986, 1987, 1988 by Jonathan Payne. JOVE *
* is provided to you without charge, and with no warranty. You may give *
* away copies of JOVE, including sources, provided that this notice is *
* included in all the files. *
***************************************************************************/
#include "jove.h"
#include "fp.h"
#include "ctype.h"
#include "termcap.h"
#include "disp.h"
int AbortCnt,
CanScroll = 0,
tabstop = 8;
#if !(defined(IBMPC) || defined(MAC))
private void
(*TTins_line) proto((int, int, int)),
(*TTdel_line) proto((int, int, int));
#endif /* (defined(IBMPC) || defined(MAC)) */
struct scrimage
*DesiredScreen = 0,
*PhysScreen = 0;
struct screenline *Screen = 0, /* the screen (a bunch of screenline) */
*Curline = 0; /* current line */
private struct screenline *Savelines = 0; /* another bunch (LI of them) */
private char *cursor; /* offset into current Line */
char *cursend;
int CapCol,
CapLine,
i_line,
i_col;
#ifdef IBMPC
extern unsigned char CHPL;
extern void near normfun(),
near scr_win(),
near clr_page(),
near clr_eoln();
#endif
void
make_scr()
{
register int i;
register struct screenline *ns;
register char *nsp;
#ifdef RESHAPING
/* In case we are RESHAPING the window! */
if (DesiredScreen)
free((char *) DesiredScreen);
if (PhysScreen)
free((char *) PhysScreen);
if (Savelines)
free((char *) Savelines);
if (Screen) {
free(Screen->s_line); /* free all the screen data */
free((char *) Screen);
}
#endif /* RESHAPING */
DesiredScreen = (struct scrimage *) malloc((unsigned) LI * sizeof (struct scrimage));
PhysScreen = (struct scrimage *) malloc((unsigned) LI * sizeof (struct scrimage));
Savelines = (struct screenline *)
malloc((unsigned) LI * sizeof(struct screenline));
ns = Screen = (struct screenline *)
malloc((unsigned) LI * sizeof(struct screenline));
nsp = (char *) malloc((unsigned)CO * LI);
if (nsp == 0) {
writef("\n\rCannot malloc screen!\n");
finish(1);
}
for (i = 0; i < LI; i++) {
ns->s_line = nsp;
nsp += CO;
ns->s_length = nsp - 1; /* End of Line */
ns += 1;
}
cl_scr(0);
}
void
clrline(cp1, cp2)
register char *cp1,
*cp2;
{
while (cp1 <= cp2)
*cp1++ = ' ';
}
#if !(defined(IBMPC) || defined(MAC))
# define sputc(c) ((*cursor != (char) (c)) ? dosputc((c)) : (cursor++, i_col++))
#endif /* (defined(IBMPC) || defined(MAC)) */
#ifdef IBMPC
int force = 0;
# define sputc(c) dosputc((c))
#endif /* IBMPC */
#ifdef MAC
# define sputc(c) bufputc((c)) /* line buffered for mac display */
#endif /* MAC */
#define soutputc(c) { if (--n <= 0) break; else sputc((c)); }
void
cl_eol()
{
if (cursor > cursend)
return;
if (cursor < Curline->s_length) {
#if !(defined(IBMPC) || defined(MAC))
if (CE) {
#endif /* (defined(IBMPC) || defined(MAC)) */
Placur(i_line, i_col);
#ifdef TERMCAP
putpad(CE, 1);
#else
clr_eoln();
#endif /* TERMCAP */
clrline(cursor, Curline->s_length);
#if !(defined(IBMPC) || defined(MAC))
} else {
/* Ugh. The slow way for dumb terminals. */
register char *savecp = cursor;
while (cursor <= Curline->s_length)
sputc(' ');
cursor = savecp;
}
#endif /* (defined(IBMPC) || defined(MAC)) */
Curline->s_length = cursor;
}
}
void
cl_scr(doit)
int doit;
{
register int i;
register struct screenline *sp = Screen;
for (i = 0; i < LI; i++, sp++) {
clrline(sp->s_line, sp->s_length);
sp->s_length = sp->s_line;
PhysScreen[i].s_id = 0;
}
if (doit) {
#ifdef TERMCAP
putpad(CL, LI);
#else
clr_page();
#endif /* TERMCAP */
CapCol = CapLine = 0;
UpdMesg = YES;
}
}
/* Output one character (if necessary) at the current position */
#ifndef MAC
int /* only for lints sake */
dosputc(c)
register int c;
{
#ifndef IBMPC
if (*cursor != c) {
# ifdef ID_CHAR
if (IN_INSmode)
INSmode(0);
# endif
#else /* IBMPC */
if ((force) || (*cursor != c)) {
#endif /* IBMPC */
if (i_line != CapLine || i_col != CapCol)
Placur(i_line, i_col);
#ifndef IBMPC
if (UL && (c & CHARMASK) == '_' && (*cursor & CHARMASK) != ' ')
putstr(" \b"); /* Erase so '_' looks right. */
#endif /* IBMPC */
*cursor++ = c;
#ifndef IBMPC
jputchar(c & CHARMASK);
#else /* IBMPC */
normfun((char) c);
#endif /* IBMPC */
AbortCnt -= 1;
CapCol += 1;
i_col += 1;
} else {
cursor += 1;
i_col += 1;
}
return 0; /* useless result */
}
#else /* MAC */
/* Character output to bit-mapped screen is very expensive. It makes
much more sense to write the entire line at once. So, we print all
the characters, whether already there or not, once the line is
complete. */
#define BUFFLUSH (char) 0
#define BUFSTART (char) 1
bufputc(c)
register char c;
{
static char buf[256];
static int len = 0;
if(c == BUFSTART) {
/* if (i_line != CapLine || i_col != CapCol)*/
NPlacur(i_line, i_col);
len = 0;
return;
}
if(c == BUFFLUSH) {
buf[0] = (unsigned char) len;
writechr(buf);
len = 0;
}
else {
if(len > 255) return;
*cursor++ = c;
if(c == '0') buf[++len] = 0xAF; /* slashed zero */
else buf[++len] = c;
CapCol++;
i_col++;
}
return;
}
#endif /* MAC */
/* Write `line' at the current position of `cursor'. Stop when we
reach the end of the screen. Aborts if there is a character
waiting. */
#ifdef MAC /* This was getting too complicated with ifdefs ... */
int
swrite(line, inversep, abortable)
register char *line;
register int abortable;
{
register int c;
int col = i_col,
aborted = 0;
register int n = cursend - cursor;
if (n <= 0)
return 1;
sputc(BUFSTART); /* Okay, because no interruption possible */
while (c = *line++) {
if (abortable && AbortCnt < 0) {
AbortCnt = BufSize;
if (InputPending = charp()) {
aborted = 1;
break;
}
}
if (c == '\t') {
int nchars;
nchars = (tabstop - (col % tabstop));
col += nchars;
while (nchars--)
soutputc(' ');
if (n <= 0)
break;
} else if (isctrl(c)) {
soutputc('^');
c = ((c == '\177') ? '?' : c + '@');
soutputc(c);
col += 2;
} else {
soutputc(c);
col += 1;
}
}
if (n <= 0) {
if ((*line == '\0') && (c != '\t') && !isctrl(c))
sputc(c);
sputc('!');
}
if (cursor > Curline->s_length)
Curline->s_length = cursor;
sputc(BUFFLUSH);
return !aborted;
}
#else /* MAC */
int
swrite(line, inversep, abortable)
register char *line;
int inversep;
register int abortable;
{
register int c;
int col = i_col,
aborted = 0;
register int n = cursend - cursor;
#ifndef IBMPC
int or_byte = inversep ? 0200 : 0,
thebyte;
#else
int thebyte;
#endif /* IBMPC */
#ifdef IBMPC
force = inversep? 1: 0; /* to force a redraw of the modeline */
#endif /* IBMPC */
if (n <= 0)
return 1;
while ((c = *line++) != '\0') {
if (abortable && AbortCnt < 0) {
AbortCnt = BufSize;
if ((InputPending = charp()) != '\0') {
aborted = 1;
break;
}
}
if (c == '\t') {
int nchars;
nchars = (tabstop - (col % tabstop));
col += nchars;
#ifndef IBMPC
thebyte = (' ' | or_byte);
#endif /* IBMPC */
while (nchars--)
#ifndef IBMPC
soutputc(thebyte);
#else /* IBMPC */
soutputc(' ');
#endif /* IBMPC */
if (n <= 0)
break;
} else if (isctrl(c)) {
#ifndef IBMPC
thebyte = ('^' | or_byte);
soutputc(thebyte);
thebyte = (((c == '\177') ? '?' : c + '@') | or_byte);
soutputc(thebyte);
#else /* IBMPC */
soutputc('^');
c = ((c == '\177') ? '?' : c + '@');
soutputc(c);
#endif /* IBMPC */
col += 2;
#ifdef TERMCAP
} else if (HZ && c == '~') {
thebyte = ('`' | or_byte);
soutputc(thebyte);
col += 1;
#endif
} else {
#ifndef IBMPC
thebyte = (c | or_byte);
soutputc(thebyte);
#else /* IBMPC */
if (c == 255) c = 1;
if (c == ' ' && inversep) c = 255;
soutputc(c);
#endif /* IBMPC */
col += 1;
}
}
if (n <= 0) {
if ((*line == '\0') && (c != '\t') && !isctrl(c))
#ifndef IBMPC
sputc(c|or_byte);
#else /* IBMPC */
sputc(c);
#endif /* IBMPC */
else
#ifndef IBMPC
sputc('!'|or_byte);
#else /* IBMPC */
sputc('!');
#endif /* IBMPC */
}
if (cursor > Curline->s_length)
Curline->s_length = cursor;
#ifdef IBMPC
force = 0;
#endif
return !aborted;
}
#endif /* MAC */
/* This is for writing a buffer line to the screen. This is to
minimize the amount of copying from one buffer to another buffer.
This gets the info directly from the disk buffers. */
int
BufSwrite(linenum)
int linenum;
{
register int n = cursend - cursor,
col = 0,
c = -1;
register char *bp;
int StartCol = DesiredScreen[linenum].s_offset,
visspace = DesiredScreen[linenum].s_window->w_flags & W_VISSPACE,
aborted = 0;
bp = lcontents(DesiredScreen[linenum].s_lp);
if (*bp) for (;;) {
if (col >= StartCol) {
DesiredScreen[linenum].s_offset = col;
break;
}
c = *bp++ & CHARMASK;
if (c == '\0')
break;
if (c == '\t')
col += (tabstop - (col % tabstop));
else if (isctrl(c))
col += 2;
else
col += 1;
}
#ifdef MAC
sputc(BUFSTART); /* Okay because we can't be interrupted */
#endif
if (c != '\0') while ((c = *bp++) != '\0') {
if (AbortCnt < 0) {
AbortCnt = BufSize;
if ((InputPending = charp()) != '\0') {
aborted = 1;
break;
}
}
if (c == '\t') {
int nchars = (tabstop - (col % tabstop));
col += nchars;
if (visspace) {
soutputc('>');
nchars -= 1;
}
while (--nchars >= 0)
soutputc(' ');
if (n <= 0)
break;
} else if (isctrl(c)) {
soutputc('^');
soutputc((c == '\177') ? '?' : c + '@');
col += 2;
#ifdef TERMCAP
} else if (HZ && c == '~') {
soutputc('`');
col += 1;
#endif
} else {
if (c == ' ' && visspace)
c = '_';
#ifdef IBMPC
if (c == 255)
c = 1;
#endif /* IBMPC */
soutputc(c);
col += 1;
}
}
if (n <= 0) {
if ((*bp == '\0') && (c != '\t') && !isctrl(c))
sputc(c);
else
sputc('!');
}
if (cursor > Curline->s_length)
Curline->s_length = cursor;
#ifdef MAC
sputc(BUFFLUSH);
#endif
return !aborted; /* Didn't abort */
}
void
i_set(nline, ncol)
register int nline,
ncol;
{
Curline = &Screen[nline];
cursor = Curline->s_line + ncol;
cursend = &Curline->s_line[CO - 1];
i_line = nline;
i_col = ncol;
}
#if !(defined(MAC) || defined(IBMPC))
void
SO_on()
{
/* If there are magic cookies, then WHERE the SO string is
printed decides where the SO actually starts on the screen.
So it's important to make sure the cursor is positioned there
anyway. I think this is right. */
if (SG != 0) {
Placur(i_line, i_col);
i_col += SG;
CapCol += SG;
}
putpad(SO, 1);
}
void
SO_off()
{
/* see comment in SO_on() */
if (SG != 0) {
Placur(i_line, i_col);
i_col += SG;
CapCol += SG;
}
putpad(SE, 1);
}
#endif
/* Insert `num' lines a top, but leave all the lines BELOW `bottom'
alone (at least they won't look any different when we are done).
This changes the screen array AND does the physical changes. */
void
v_ins_line(num, top, bottom)
int num,
top,
bottom;
{
register int i;
/* Save the screen pointers. */
for(i = 0; i < num && top + i <= bottom; i++)
Savelines[i] = Screen[bottom - i];
/* Num number of bottom lines will be lost.
Copy everything down num number of times. */
for (i = bottom; i > top && i-num >= 0; i--)
Screen[i] = Screen[i - num];
/* Restore the saved ones, making them blank. */
for (i = 0; i < num; i++) {
Screen[top + i] = Savelines[i];
clrline(Screen[top + i].s_line, Screen[top + i].s_length);
Screen[top + i].s_length = Screen[top + i].s_line;
}
#if !(defined(IBMPC) || defined(MAC))
(*TTins_line)(top, bottom, num);
#endif
#ifdef MAC
i_lines(top, bottom, num);
#endif
#ifdef IBMPC
scr_win((int) -num, (unsigned char) top, 0, (unsigned char) bottom, CHPL-1);
#endif
}
/* Delete `num' lines starting at `top' leaving the lines below `bottom'
alone. This updates the internal image as well as the physical image. */
void
v_del_line(num, top, bottom)
int num,
top,
bottom;
{
register int i,
bot;
bot = bottom;
/* Save the lost lines. */
for (i = 0; i < num && top + i <= bottom; i++)
Savelines[i] = Screen[top + i];
/* Copy everything up num number of lines. */
for (i = top; num + i <= bottom; i++)
Screen[i] = Screen[i + num];
/* Restore the lost ones, clearing them. */
for (i = 0; i < num; i++) {
Screen[bottom - i] = Savelines[i];
clrline(Screen[bot].s_line, Screen[bot].s_length);
Screen[bot].s_length = Screen[bot].s_line;
bot -= 1;
}
#if !(defined(IBMPC) || defined(MAC))
(*TTdel_line)(top, bottom, num);
#endif
#ifdef MAC
d_lines(top, bottom, num);
#endif
#ifdef IBMPC
scr_win(num, (unsigned char) top, 0, (unsigned char) bottom, CHPL-1);
#endif
}
#if !(defined(MAC) || defined(IBMPC)) /* remainder of this file */
/* The cursor optimization happens here. You may decide that this
is going too far with cursor optimization, or perhaps it should
limit the amount of checking to when the output speed is slow.
What ever turns you on ... */
struct cursaddr {
int cm_numchars;
void (*cm_proc) ();
};
private char *Cmstr;
private struct cursaddr *HorMin,
*VertMin,
*DirectMin;
private void
GENi_lines proto((int, int, int)),
GENd_lines proto((int, int, int)),
ForMotion proto((int)),
ForTab proto((int)),
BackMotion proto((int)),
RetTab proto((int)),
DownMotion proto((int)),
UpMotion proto((int)),
GoDirect proto((int, int)),
HomeGo proto((int, int)),
BottomUp proto((int, int));
private struct cursaddr WarpHor[] = {
0, ForMotion,
0, ForTab,
0, BackMotion,
0, RetTab
};
private struct cursaddr WarpVert[] = {
0, DownMotion,
0, UpMotion
};
private struct cursaddr WarpDirect[] = {
0, GoDirect,
0, HomeGo,
0, BottomUp
};
#undef FORWARD
#define FORWARD 0 /* Move forward */
#define FORTAB 1 /* Forward using tabs */
#undef BACKWARD
#define BACKWARD 2 /* Move backward */
#define RETFORWARD 3 /* Beginning of line and then tabs */
#define NUMHOR 4
#define DOWN 0 /* Move down */
#define UPMOVE 1 /* Move up */
#define NUMVERT 2
#define DIRECT 0 /* Using CM */
#define HOME 1 /* HOME */
#define LOWER 2 /* Lower Line */
#define NUMDIRECT 3
#define home() Placur(0, 0)
#define LowLine() { putpad(LL, 1); CapLine = ILI; CapCol = 0; }
#define PrintHo() { putpad(HO, 1); CapLine = CapCol = 0; }
int phystab = 8;
private void
GoDirect(line, col)
register int line,
col;
{
putpad(Cmstr, 1);
CapLine = line;
CapCol = col;
}
private void
RetTab(col)
register int col;
{
jputchar('\r');
CapCol = 0;
ForTab(col);
}
private void
HomeGo(line, col)
int line,
col;
{
PrintHo();
DownMotion(line);
ForTab(col);
}
private void
BottomUp(line, col)
register int line,
col;
{
LowLine();
UpMotion(line);
ForTab(col);
}
/* Tries to move forward using tabs (if possible). It tabs to the
closest tabstop which means it may go past 'destcol' and backspace
to it. */
private void
ForTab(destcol)
int destcol;
{
register int tabgoal,
ntabs,
tabstp = phystab;
if (TABS && (tabstp > 0)) {
tabgoal = destcol + (tabstp / 2);
tabgoal -= (tabgoal % tabstp);
/* Don't tab to last place or else it is likely to screw up. */
if (tabgoal >= CO)
tabgoal -= tabstp;
ntabs = (tabgoal / tabstp) - (CapCol / tabstp);
while (--ntabs >= 0)
jputchar('\t');
CapCol = tabgoal;
}
if (CapCol > destcol)
BackMotion(destcol);
else if (CapCol < destcol)
ForMotion(destcol);
}
private void
ForMotion(destcol)
register int destcol;
{
register int nchars = destcol - CapCol;
register char *cp = &Screen[CapLine].s_line[CapCol];
while (--nchars >= 0)
jputchar(*cp++ & CHARMASK);
CapCol = destcol;
}
private void
BackMotion(destcol)
register int destcol;
{
register int nchars = CapCol - destcol;
if (BC)
while (--nchars >= 0)
putpad(BC, 1);
else
while (--nchars >= 0)
jputchar('\b');
CapCol = destcol;
}
private void
DownMotion(destline)
register int destline;
{
register int nlines = destline - CapLine;
while (--nlines >= 0)
putpad(DO, 1);
CapLine = destline;
}
private void
UpMotion(destline)
register int destline;
{
register int nchars = CapLine - destline;
while (--nchars >= 0)
putpad(UP, 1);
CapLine = destline;
}
#ifdef ID_CHAR
static int EIlen;
#endif
#ifndef IBMPC
void
InitCM()
{
HOlen = HO ? strlen(HO) : 1000;
LLlen = LL ? strlen(LL) : 1000;
UPlen = UP ? strlen(UP) : 1000;
#ifdef ID_CHAR
if (EI)
EIlen = strlen(EI);
#endif
}
private int ForNum proto((int from, int to));
void
Placur(line, col)
int line,
col;
{
int dline, /* Number of lines to move */
dcol; /* Number of columns to move */
register int best,
i;
register struct cursaddr *cp;
int xtracost = 0; /* Misc addition to cost. */
#define CursMin(which,addrs,max) { \
for (best = 0, cp = &(addrs)[1], i = 1; i < (max); i++, cp++) \
if (cp->cm_numchars < (addrs)[best].cm_numchars) \
best = i; \
(which) = &(addrs)[best]; \
}
if (line == CapLine && col == CapCol)
return; /* We are already there. */
dline = line - CapLine;
dcol = col - CapCol;
#ifdef ID_CHAR
if (IN_INSmode && MI)
xtracost = EIlen + IMlen;
/* If we're already in insert mode, it is likely that we will
want to be in insert mode again, after the insert. */
#endif
/* Number of characters to move horizontally for each case.
1: Just move forward by typing the right character on the screen.
2: Print the correct number of back spaces.
3: Try tabbing to the correct place.
4: Try going to the beginning of the line, and then tab. */
if (dcol == 1 || dcol == 0) { /* Most common case. */
HorMin = &WarpHor[FORWARD];
HorMin->cm_numchars = dcol + xtracost;
} else {
WarpHor[FORWARD].cm_numchars = dcol >= 0 ? dcol + xtracost : 1000;
WarpHor[BACKWARD].cm_numchars = dcol < 0 ? -(dcol + xtracost) : 1000;
WarpHor[FORTAB].cm_numchars = dcol >= 0 && TABS ?
ForNum(CapCol, col) + xtracost : 1000;
WarpHor[RETFORWARD].cm_numchars = (xtracost + 1 + (TABS ? ForNum(0, col) : col));
/* Which is the shortest of the bunch */
CursMin(HorMin, WarpHor, NUMHOR);
}
/* Moving vertically is more simple. */
WarpVert[DOWN].cm_numchars = dline >= 0 ? dline : 1000;
WarpVert[UPMOVE].cm_numchars = dline < 0 ? ((-dline) * UPlen) : 1000;
/* Which of these is simpler */
CursMin(VertMin, WarpVert, NUMVERT);
/* Homing first and lowering first are considered
direct motions.
Homing first's total is the sum of the cost of homing
and the sum of tabbing (if possible) to the right. */
if (VertMin->cm_numchars + HorMin->cm_numchars <= 3) {
DirectMin = &WarpDirect[DIRECT]; /* A dummy ... */
DirectMin->cm_numchars = 100;
} else {
WarpDirect[DIRECT].cm_numchars = CM ?
strlen(Cmstr = tgoto(CM, col, line)) : 1000;
WarpDirect[HOME].cm_numchars = HOlen + line +
WarpHor[RETFORWARD].cm_numchars;
WarpDirect[LOWER].cm_numchars = LLlen + ((ILI - line) * UPlen) +
WarpHor[RETFORWARD].cm_numchars;
CursMin(DirectMin, WarpDirect, NUMDIRECT);
}
if (HorMin->cm_numchars + VertMin->cm_numchars < DirectMin->cm_numchars) {
if (line != CapLine)
(*VertMin->cm_proc)(line);
if (col != CapCol) {
#ifdef ID_CHAR
if (IN_INSmode) /* We may use real characters ... */
INSmode(0);
#endif
(*HorMin->cm_proc)(col);
}
} else {
#ifdef ID_CHAR
if (IN_INSmode && !MI)
INSmode(0);
#endif
(*DirectMin->cm_proc)(line, col);
}
}
#endif /* IBMPC */
#define abs(x) ((x) >= 0 ? (x) : -(x))
private int
ForNum(from, to)
register int from;
int to;
{
register int tabgoal,
tabstp = phystab;
int numchars = 0;
if (from >= to)
return from - to;
if (TABS && (tabstp > 0)) {
tabgoal = to + (tabstp / 2);
tabgoal -= (tabgoal % tabstp);
if (tabgoal >= CO)
tabgoal -= tabstp;
numchars = (tabgoal / tabstop) - (from / tabstp);
from = tabgoal;
}
return numchars + abs(from - to);
}
#ifdef WIRED_TERMS
private void
BGi_lines(top, bottom, num)
int top,
bottom,
num;
{
writef("\033[%d;%dr\033[%dL\033[r", top + 1, bottom + 1, num);
CapCol = CapLine = 0;
}
private void
SUNi_lines(top, bottom, num)
int top,
bottom,
num;
{
Placur(bottom - num + 1, 0);
writef("\033[%dM", num);
Placur(top, 0);
writef("\033[%dL", num);
}
private void
C100i_lines(top, bottom, num)
int top,
bottom,
num;
{
if (num <= 1) {
GENi_lines(top, bottom, num);
return;
}
writef("\033v%c%c%c%c", ' ', ' ', ' ' + bottom + 1, ' ' + CO);
CapLine = CapCol = 0;
Placur(top, 0);
while (num--)
putpad(AL, ILI - CapLine);
writef("\033v%c%c%c%c", ' ', ' ', ' ' + LI, ' ' + CO);
CapLine = CapCol = 0;
}
#endif /* WIRED_TERMS */
private void
GENi_lines(top, bottom, num)
int top,
bottom,
num;
{
register int i;
if (CS) {
putpad(tgoto(CS, bottom, top), 1);
CapCol = CapLine = 0;
Placur(top, 0);
for (i = 0; i < num; i++)
putpad(SR, bottom - top);
putpad(tgoto(CS, ILI, 0), 1);
CapCol = CapLine = 0;
} else {
Placur(bottom - num + 1, 0);
if (M_DL && (num > 1)) {
putargpad(M_DL, num, ILI - CapLine);
} else {
for (i = 0; i < num; i++)
putpad(DL, ILI - CapLine);
}
Placur(top, 0);
if (M_AL && (num > 1)) {
putargpad(M_AL, num, ILI - CapLine);
} else {
for (i = 0; i < num; i++)
putpad(AL, ILI - CapLine);
}
}
}
#ifdef WIRED_TERMS
private void
BGd_lines(top, bottom, num)
int top,
bottom,
num;
{
writef("\033[%d;%dr\033[%dM\033[r", top + 1, bottom + 1, num);
CapCol = CapLine = 0;
}
private void
SUNd_lines(top, bottom, num)
int top,
bottom,
num;
{
Placur(top, 0);
writef("\033[%dM", num);
Placur(bottom + 1 - num, 0);
writef("\033[%dL", num);
}
private void
C100d_lines(top, bottom, num)
int top,
bottom,
num;
{
if (num <= 1) {
GENd_lines(top, bottom, num);
return;
}
writef("\033v%c%c%c%c", ' ', ' ', ' ' + bottom + 1, ' ' + CO);
CapLine = CapCol = 0;
Placur(top, 0);
while (num--)
putpad(DL, ILI - CapLine);
writef("\033v%c%c%c%c", ' ', ' ', ' ' + LI, ' ' + CO);
CapLine = CapCol = 0;
}
#endif /* WIRED_TERMS */
private void
GENd_lines(top, bottom, num)
int top,
bottom,
num;
{
register int i;
if (CS) {
putpad(tgoto(CS, bottom, top), 1);
CapCol = CapLine = 0;
Placur(bottom, 0);
for (i = 0; i < num; i++)
putpad(SF, bottom - top);
putpad(tgoto(CS, ILI, 0), 1);
CapCol = CapLine = 0;
} else {
Placur(top, 0);
if (M_DL && (num > 1)) {
putargpad(M_DL, num, ILI - top);
} else {
for (i = 0; i < num; i++)
putpad(DL, ILI - top);
}
Placur(bottom + 1 - num, 0);
if (M_AL && (num > 1)) {
putargpad(M_AL, num, ILI - CapLine);
} else {
for (i = 0; i < num; i++)
putpad(AL, ILI - CapLine);
}
}
}
private const struct ID_lookup {
char *ID_name;
void (*I_proc) proto((int, int, int)); /* proc to insert lines */
void (*D_proc) proto((int, int, int)); /* proc to delete lines */
} ID_trms[] = {
"generic", GENi_lines, GENd_lines, /* This should stay here */
#ifdef WIRED_TERMS
"sun", SUNi_lines, SUNd_lines,
"bg", BGi_lines, BGd_lines,
"c1", C100i_lines, C100d_lines,
#endif /* WIRED_TERMS */
0, 0, 0
};
void
IDline_setup(tname)
char *tname;
{
register const struct ID_lookup *idp;
for (idp = &ID_trms[1]; idp->ID_name; idp++)
if (strncmp(idp->ID_name, tname, strlen(idp->ID_name)) == 0)
break;
if (idp->ID_name == 0)
idp = &ID_trms[0];
#ifndef IBMPC
TTins_line = idp->I_proc;
TTdel_line = idp->D_proc;
#endif
}
#endif /* MAC */