fixed wrap around problem

[unix-history] / usr / src / usr.bin / window / tth19.c

#ifndef lint
static  char *sccsid = "@(#)tth19.c     3.7 83/08/17";
#endif

#include "ww.h"
#include "tt.h"

/*
kb|h19|heath|h19-b|h19b|heathkit|heath-19|z19|zenith:
       cr=^M:nl=^J:bl=^G:al=1*\EL:am:le=^H:bs:cd=\EJ:ce=\EK:
       cl=\EE:cm=\EY%+ %+ :co#80:dc=\EN:dl=1*\EM:do=\EB:
       ei=\EO:ho=\EH:im=\E@:li#24:mi:nd=\EC:as=\EF:ae=\EG:ms:
       ta=^I:pt:sr=\EI:se=\Eq:so=\Ep:up=\EA:vs=\Ex4:ve=\Ey4:
       kb=^h:ku=\EA:kd=\EB:kl=\ED:kr=\EC:kh=\EH:
       kn#8:k1=\ES:k2=\ET:k3=\EU:k4=\EV:k5=\EW:
       l6=blue:l7=red:l8=white:k6=\EP:k7=\EQ:k8=\ER:
       es:hs:ts=\Ej\Ex5\Ex1\EY8%+ \Eo:fs=\Ek\Ey5:ds=\Ey1:
*/

char h19_frame[16] = {
       ' ',      '`'|0x80, 'a'|0x80, 'e'|0x80,
       '`'|0x80, '`'|0x80, 'f'|0x80, 'v'|0x80,
       'a'|0x80, 'd'|0x80, 'a'|0x80, 'u'|0x80,
       'c'|0x80, 't'|0x80, 's'|0x80, 'b'|0x80
};

char h19_row, h19_col;
char h19_modes, h19_nmodes;
char h19_insert, h19_ninsert;
char h19_graphics;
short h19_msp10c;
char *h19_VS;
char *h19_VE;

#define pc(c)   putchar('c')
#define esc()   pc(\033)
#define PAD(ms10) { \
       register i; \
       for (i = ((ms10) + 5) / h19_msp10c; --i >= 0;) \
               pc(\0); \
}
#define ICPAD() PAD((80 - h19_col) * 1)         /* 0.1 ms per char */
#define ILPAD() PAD((24 - h19_row) * 10);       /* 1 ms per char */

#define SETINSERT(m) \
       ((m) != h19_insert \
               ? (esc(), (h19_insert = (m)) ? pc(@) : pc(O)) : 0)
#define SETMODES(m) \
       ((m) != h19_modes \
               ? (esc(), (h19_modes = (m)) ? pc(p) : pc(q)) : 0)
#define SETGRAPHICS(m) \
       ((m) != h19_graphics \
               ? (esc(), (h19_graphics = (m)) ? pc(F) : pc(G)) : 0)

h19_setinsert(new)
char new;
{
       h19_ninsert = new;
}

h19_setmodes(new)
{
       h19_nmodes = new & WWM_REV;
}

h19_insline()
{
       esc();
       pc(L);
       ILPAD();
}

h19_delline()
{
       esc();
       pc(M);
       ILPAD();
}

h19_putc(c)
register char c;
{
       SETMODES(h19_nmodes);
       SETINSERT(h19_ninsert);
       if (c & 0x80) {
               SETGRAPHICS(1);
               putchar(c & 0x7f);
       } else {
               SETGRAPHICS(0);
               putchar(c);
       }
       if (h19_insert)
               ICPAD();
       if (++h19_col >= 80)
               h19_col = 79;
}

h19_write(start, end)
register char *start, *end;
{
       register char c;

       SETMODES(h19_nmodes);
       SETINSERT(h19_ninsert);
       if (h19_insert) {
               while (start <= end) {
                       if ((c = *start++) & 0x80) {
                               SETGRAPHICS(1);
                               putchar(c & 0x7f);
                       } else {
                               SETGRAPHICS(0);
                               putchar(c);
                       }
                       ICPAD();
                       h19_col++;
               }
       } else {
               h19_col += end - start + 1;
               while (start <= end)
                       if ((c = *start++) & 0x80) {
                               SETGRAPHICS(1);
                               putchar(c & 0x7f);
                       } else {
                               SETGRAPHICS(0);
                               putchar(c);
                       }
       }
       if (h19_col >= 80)
               h19_col = 79;
}

h19_blank(n)
register n;
{
       if (n <= 0)
               return;
       SETMODES(h19_nmodes);
       SETINSERT(h19_ninsert);
       if (h19_insert) {
               while (--n >= 0) {
                       putchar(' ');
                       ICPAD();
                       h19_col++;
               }
       } else {
               h19_col += n;
               while (--n >= 0)
                       putchar(' ');
       }
       if (h19_col >= 80)
               h19_col = 79;
}

h19_move(row, col)
register char row, col;
{
       if (h19_row == row) {
               if (h19_col == col)
                       return;
               if (h19_col == col - 1) {
                       esc();
                       pc(C);
                       goto out;
               } else if (h19_col == col + 1) {
                       pc(\b);
                       goto out;
               }
       }
       if (h19_col == col) {
               if (h19_row == row + 1) {
                       esc();
                       pc(A);
                       goto out;
               } else if (h19_row == row + 1) {
                       pc(\n);
                       goto out;
               }
       }
       if (col == 0 && row == 0) {
               esc();
               pc(H);
               goto out;
       }
       esc();
       pc(Y);
       putchar(' ' + row);
       putchar(' ' + col);
out:
       h19_col = col;
       h19_row = row;
}

h19_init()
{
       if (h19_VS)
               fputs(h19_VS, stdout);
       esc();
       pc(w);
       esc();
       pc(E);
       h19_col = h19_row = 0;
       h19_insert = 0;
       h19_graphics = 0;
       h19_modes = 0;
}

h19_end()
{
       SETMODES(0);
       SETINSERT(0);
       SETGRAPHICS(0);
       if (h19_VE)
               fputs(h19_VE, stdout);
       esc();
       pc(v);
}

h19_clreol()
{
       esc();
       pc(K);
}

h19_clreos()
{
       esc();
       pc(J);
}

h19_clear()
{
       esc();
       pc(E);
}

h19_delchar()
{
       esc();
       pc(N);
}

tt_h19()
{
       float cpms = (float) wwbaud / 10000;    /* char per ms */

       h19_msp10c = 10 / cpms;                 /* ms per 10 char */
       h19_VS = tt_xgetstr("vs");
       h19_VE = tt_xgetstr("ve");
       tt.tt_setinsert = h19_setinsert;
       tt.tt_setmodes = h19_setmodes;
       tt.tt_insline = h19_insline;
       tt.tt_delline = h19_delline;
       tt.tt_delchar = h19_delchar;
       tt.tt_blank = h19_blank;
       tt.tt_init = h19_init;
       tt.tt_end = h19_end;
       tt.tt_clreol = h19_clreol;
       tt.tt_clreos = h19_clreos;
       tt.tt_clear = h19_clear;
       tt.tt_move = h19_move;
       tt.tt_write = h19_write;
       tt.tt_putc = h19_putc;
       tt.tt_ncol = 80;
       tt.tt_nrow = 24;
       tt.tt_availmodes = WWM_REV;
       tt.tt_frame = h19_frame;
       return 0;
}