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2167 lines (1921 loc) · 44.2 KB
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Copy pathwindow.c
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2167 lines (1921 loc) · 44.2 KB
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/*
* window.c Very portable window routines.
* Currently this code is used in _both_ the BBS
* system and minicom.
*
* This file is part of the minicom communications package,
* Copyright 1991-1996 Miquel van Smoorenburg.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 01.01.98 dickey@clark.net: fix for a history window closing bug
* fmg 8/20/97: Added support for Search of History Buffer
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <limits.h>
#include <stdarg.h>
#include <wchar.h>
#include "port.h"
#include "minicom.h"
#include "intl.h"
/* Status line code on/off. */
#define ST_LINE 1
/* fmg 2/20/94 macros - Length of Macros */
#ifndef MAC_LEN
#define MAC_LEN 257
#endif
/* Don't want to include all header stuff for three prototypes from sysdep.c */
#ifdef __STDC__
int setcbreak(int);
int wxgetch(void);
void getrowcols(int *rows, int *cols);
#else
int setcbreak();
int wxgetch();
void getrowcols();
#endif
#ifndef BBS
#include "config.h"
#endif
#define BUFFERSIZE 2048
#define swap(x, y) { int d = (x); (x) = (y); (y) = d; }
/* Terminal capabilities */
static const char *CM, *IS, *RS, *AC, *EA;
static const char *ME, *SE, *UE, *AE;
static const char *AS, *MB, *MD, *MR, *SO, *US;
static const char *CE, *Al, *Dl, *AL, *DL;
static const char *CS, *SF, *SR, *VB, *BL;
static const char *VE, *VI, *KS, *KE;
static const char *CD, *CL, *IC, *DC;
static const char *CR, *NL;
#ifdef ST_LINE
static const char *TS, *FS, *DS;
#endif
/* Special characters */
static char D_UL;
static char D_HOR;
static char D_UR;
static char D_LL;
static char D_VER;
static char D_LR;
static char S_UL;
static char S_HOR;
static char S_UR;
static char S_LL;
static char S_VER;
static char S_LR;
static char _bufstart[BUFFERSIZE];
static char *_bufpos = _bufstart;
static char *_buffend;
static ELM *gmap;
static char curattr = -1;
static char curcolor = -1;
static int curx = -1;
static int cury = -1;
static int _intern = 0;
static int _curstype = CNORMAL;
static int _has_am = 0;
static int _mv_standout = 0;
static ELM oldc;
static int sflag = 0;
/*
* Smooth is only defined for slow machines running Minicom.
* With this defined, Minicom will buffer only per-line
* and the output will look much less 'jerky'. (I hope :-)
*/
#ifdef SMOOTH
static WIN *curwin = NULL;
WIN *us;
#endif
int useattr = 1;
int dirflush = 1;
int LINES, COLS;
int usecolor = 0;
WIN *stdwin;
/*
* The following is an external pointer to the termcap info.
* If it's NOT zero then the main program has already
* read the termcap for us. No sense in doing it twice.
*/
char *_tptr = NULL;
int screen_ibmpc = 0;
int screen_iso = 0;
int w_init = 0;
int use_status = 0; /* Turned on in main() */
/* Standard vt100 map (ac cpability) */
static const char *def_ac = "+\273,\253aaffggjjkkllmmnnooqqssttuuvvwwxx";
#ifdef DEBUG
/*
* Debug to stdout
*/
int debug(char *s, ...)
{
char lala[80];
va_list ap;
va_start(ap, s);
vsnprintf(lala, sizeof(lala), s, ap);
va_end(ap);
write(2, lala, strlen(lala));
return 0;
}
#endif
/* ===== Low level routines ===== */
/*
* Flush the screen buffer
*/
void mc_wflush(void)
{
int todo, done;
todo = _bufpos - _bufstart;
_bufpos = _bufstart;
while (todo > 0) {
done = write(1, _bufpos, todo);
if (done > 0) {
todo -= done;
_bufpos += done;
}
if (done < 0 && errno != EINTR)
break;
}
_bufpos = _bufstart;
}
/*
* Output a raw character to the screen
*/
static int outchar(int c)
{
*_bufpos++ = c;
if (_bufpos >= _buffend)
mc_wflush();
#if defined(SMOOTH)
if (curwin == us && (c == '\n' || c == '\r'))
mc_wflush();
#endif
return 0;
}
/*
* Output a raw string to the screen.
*/
static void outstr(const char *s)
{
tputs(s, 1, outchar);
}
/*
* Turn off all attributes
*/
static void _attroff(void)
{
if (ME)
outstr(ME);
else {
if (SE)
outstr(SE);
if (UE)
outstr(UE);
}
if (AE)
outstr(AE);
}
/*
* Turn some attributes on
*/
static void _attron(char attr)
{
if (attr & XA_REVERSE && MR)
outstr(MR);
if (attr & XA_BOLD && MD)
outstr(MD);
if (attr & XA_STANDOUT && SO)
outstr(SO);
if (attr & XA_UNDERLINE && US)
outstr(US);
if (attr & XA_BLINK && MB)
outstr(MB);
if (attr & XA_ALTCHARSET && AS)
outstr(AS);
}
/*
* Set the colors
*/
static void _colson(char color)
{
char buf[12];
sprintf(buf, "\033[%d;%dm", COLFG(color) + 30, COLBG(color) + 40);
outstr(buf);
}
/*
* Set global attributes, if different.
*/
static void _setattr(char attr, char color)
{
if (!useattr)
return;
if (!usecolor) {
curcolor = color;
if (attr == curattr)
return;
curattr = attr;
_attroff();
_attron(attr);
return;
}
if (attr == curattr && color == curcolor)
return;
_attroff();
_colson(color);
_attron(attr);
curattr = attr;
curcolor = color;
}
/*
* Goto (x, y) in stdwin
*/
static void _gotoxy(int x, int y)
{
int oldattr = -1;
#ifdef ST_LINE
int tmp;
/* Sanity check. */
if (x >= COLS || y > LINES || (x == curx && y == cury))
return;
if (use_status) {
/* Leaving status line? */
if (cury == LINES && y < cury) {
outstr(FS);
/* Re-set attributes. */
tmp = curattr;
curattr = -1;
_setattr(tmp, curcolor);
outstr(tgoto(CM, x, y));
curx = x; cury = y;
return;
}
/* Writing on status line? */
else if (y == LINES) {
/* From normal screen? */
if (cury < y) {
outstr(tgoto(TS, x, x));
curx = x;
cury = y;
/* Set the right attributes. */
tmp = curattr;
curattr = -1;
_setattr(tmp, curcolor);
return;
}
}
}
#else
/* Sanity check. */
if (x >= COLS || y >= LINES || (x == curx && y == cury)) {
# if 0
if (x >= COLS || y >= LINES)
fprintf(stderr, "OOPS: (x, y) == (%d, %d)\n",
COLS, LINES);
# endif
return;
}
#endif
if (!_mv_standout && curattr != XA_NORMAL) {
oldattr = curattr;
_setattr(XA_NORMAL, curcolor);
}
if (CR != NULL && y == cury && x == 0)
outstr(CR);
#if 0 /* Hmm, sometimes NL only works in the first column */
else if (NL != NULL && x == curx && y == cury + 1)
outstr(NL);
#else
else if (NL != NULL && x == 0 && x == curx && y == cury + 1)
outstr(NL);
#endif
else if (BC != NULL && y == cury && x == curx - 1)
outstr(BC);
else
outstr(tgoto(CM, x, y));
curx = x;
cury = y;
if (oldattr != -1)
_setattr(oldattr, curcolor);
}
/*
* Write a character in stdwin at x, y with attr & color
* 'doit' can be -1: only write to screen, not to memory
* 0: only write to memory, not to screen
* 1: write to both screen and memory
*/
static void _write(wchar_t c, int doit, int x, int y, char attr, char color)
{
ELM *e;
/* If the terminal has automatic margins, we can't write to the
* last line, last character. After scrolling, this "invisible"
* character is automatically restored.
*/
if (_has_am && y >= LINES - 1 && x >= COLS - 1) {
doit = 0;
sflag = 1;
oldc.value = c;
oldc.attr = attr;
oldc.color = color;
}
#ifdef ST_LINE
if (x < COLS && y <= LINES)
#else
if (x < COLS && y < LINES)
#endif
{
if (doit != 0) {
static int x0 = -1, y0 = -1, c0 = 0;
static char attr0, color0;
if (x!=x0+1 || y!=y0 || attr!=attr0 || color!=color0 || !(c0&128)) {
_gotoxy(x, y);
_setattr(attr, color);
}
x0 = x; y0 = y; attr0 = attr; color0 = color; c0 = c;
if (using_iconv() || (attr & XA_ALTCHARSET) != 0)
outchar((char)c);
else {
char buf[MB_LEN_MAX];
size_t i, len;
len = one_wctomb(buf, c);
for (i = 0; i < (size_t)len; i++)
outchar(buf[i]);
}
curx++;
}
if (doit >= 0) {
e = &gmap[x + y * COLS];
e->value = c;
e->attr = attr;
e->color = color;
}
}
}
/*
* Set cursor type.
*/
static void _cursor(int type)
{
_curstype = type;
if (type == CNORMAL && VE != NULL)
outstr(VE);
if (type == CNONE && VE != NULL && VI != NULL)
outstr(VI);
}
/* ==== High level routines ==== */
#if 0
/* This code is functional, but not yet used.
* It might be one day....
*/
/*
* Resize a window
*/
void mc_wresize(WIN *win, int lines, int cols)
{
int x, y;
ELM *oldmap, *newmap, *e, *n;
if ((newmap = malloc((lines + 1) * cols * sizeof(ELM))) == NULL)
return;
if (win == stdwin)
oldmap = gmap;
else
oldmap = win->map;
for (y = 0; y < lines; y++)
for (x = 0; x < cols; x++) {
n = &newmap[y + x * cols];
if (x < win->xs && y < win->ys) {
e = &oldmap[y + x * COLS];
n->value = e->value;
n->color = e->color;
n->attr = e->attr;
} else {
n->value = ' ';
n->color = win->color;
n->attr = win->attr;
}
}
<
10000
/div> if (win->sy2 == win->y2)
win->sy2 = win->y1 + lines - 1;
win->y2 = win->y1 + lines - 1;
win->ys = lines;
win->xs = cols;
free(oldmap);
if (win == stdwin) {
gmap = newmap;
LINES = lines;
COLS = cols;
} else
win->map = newmap;
}
#endif
/*
* Create a new window.
*/
WIN *mc_wopen(int x1, int y1, int x2, int y2, int border, int attr,
int fg, int bg, int direct, int histlines, int doclr)
{
WIN *w;
ELM *e;
int bytes;
int x, y;
int color;
int offs;
int xattr;
#ifdef SMOOTH
curwin = NULL;
#endif
if ((w = malloc(sizeof(WIN))) == NULL)
return w;
offs = (border != BNONE);
if (!screen_ibmpc && AS)
xattr = attr | XA_ALTCHARSET;
else
xattr = attr;
if (x1 > x2)
swap(x1, x2);
if (y1 > y2)
swap(y1, y2);
if (x1 < offs)
x1 = offs;
if (y1 < offs)
y1 = offs;
#if 0
if (x2 >= COLS - offs)
x2 = COLS - offs - 1;
if (y2 >= LINES - offs)
y2 = LINES - offs - 1;
#endif
w->xs = x2 - x1 + 1;
w->ys = y2 - y1 + 1;
w->x1 = x1;
w->x2 = x2;
w->y1 = w->sy1 = y1;
w->y2 = w->sy2 = y2;
w->doscroll = 1;
w->border = border;
w->cursor = CNORMAL;
w->attr = attr;
w->autocr = 1;
w->wrap = 1;
color = w->color = COLATTR(fg, bg);
w->curx = 0;
w->cury = 0;
w->o_curx = curx;
w->o_cury = cury;
w->o_attr = curattr;
w->o_color = curcolor;
w->o_cursor = _curstype;
w->direct = direct;
if (border != BNONE) {
x1--;
x2++;
y1--;
y2++;
}
/* Store whatever we are overlapping */
bytes = (y2 - y1 + 1) * (x2 - x1 + 1) * sizeof(ELM) + 100;
if ((e = malloc(bytes)) == NULL) {
free(w);
return NULL;
}
w->map = e;
/* How many bytes is one line */
bytes = (x2 - x1 + 1) * sizeof(ELM);
/* Loop */
for (y = y1; y <= y2; y++) {
memcpy(e, gmap + COLS * y + x1, bytes);
e += (x2 - x1 + 1);
}
/* Do we want history? */
w->histline = w->histlines = 0;
w->histbuf = NULL;
if (histlines) {
/* Reserve some memory. */
bytes = w->xs * histlines * sizeof(ELM);
if ((w->histbuf = malloc(bytes)) == NULL) {
free(w->map);
free(w);
return NULL;
}
w->histlines = histlines;
/* Clear the history buf. */
e = w->histbuf;
for (y = 0; y < w->xs * histlines; y++) {
e->value = ' ';
e->attr = attr;
e->color = color;
e++;
}
}
/* And draw the window */
if (border) {
_write(border == BSINGLE ? S_UL : D_UL, w->direct, x1, y1, xattr, color);
for (x = x1 + 1; x < x2; x++)
_write(border == BSINGLE ? S_HOR : D_HOR, w->direct, x, y1, xattr, color);
_write(border == BSINGLE ? S_UR : D_UR, w->direct, x2, y1, xattr, color);
for (y = y1 + 1; y < y2; y++) {
_write(border == BSINGLE ? S_VER : D_VER, w->direct, x1, y, xattr, color);
for (x = x1 + 1; x < x2; x++)
_write(' ', w->direct, x, y, attr, color);
_write(border == BSINGLE ? S_VER : D_VER, w->direct, x2, y, xattr, color);
}
_write(border == BSINGLE ? S_LL : D_LL, w->direct, x1, y2, xattr, color);
for (x = x1 + 1; x < x2; x++)
_write(border == BSINGLE ? S_HOR : D_HOR, w->direct, x, y2, xattr, color);
_write(border == BSINGLE ? S_LR : D_LR, w->direct, x2, y2, xattr, color);
if (w->direct)
_gotoxy(x1 + 1, y1 + 1);
} else
if (doclr)
mc_winclr(w);
mc_wcursor(w, CNORMAL);
if (w->direct)
mc_wflush();
return w;
}
/*
* Close a window.
*/
void mc_wclose(WIN *win, int replace)
{
ELM *e;
int x, y;
#ifdef SMOOTH
curwin = NULL;
#endif
if (!win)
return;
if (win == stdwin) {
win_end();
return;
}
e = win->map;
if (win->border) {
win->x1--;
win->x2++;
win->y1--;
win->y2++;
}
mc_wcursor(win, win->o_cursor);
if (replace) {
for (y = win->y1; y <= win->y2; y++) {
/* temporal way to avoid 'half-character' problem */
/* in multibyte characters such as Japanese -- from here */
ELM *g;
g = gmap + (y * stdwin->xs);
for (x = 0 ; x < win->x1; x++) {
_write(g->value, 1, x, y, g->attr, g->color);
g++;
}
/* to here */
for (x = win->x1; x <= win->x2; x++) {
_write(e->value, 1, x, y, e->attr, e->color);
e++;
}
}
_gotoxy(win->o_curx, win->o_cury);
_setattr(win->o_attr, win->o_color);
}
free(win->map);
if (win->histbuf)
free(win->histbuf);
free(win); /* 1.1.98 dickey@clark.net */
mc_wflush();
}
static int oldx, oldy;
static int ocursor;
/*
* Clear screen & restore keyboard modes
*/
void mc_wleave(void)
{
oldx = curx;
oldy = cury;
ocursor = _curstype;
setcbreak(0); /* Normal */
_gotoxy(0, LINES - 1);
_setattr(XA_NORMAL, COLATTR(WHITE, BLACK));
_cursor(CNORMAL);
if (CL != NULL)
outstr(CL);
else
outstr("\n");
#ifdef ST_LINE
if (DS)
outstr(DS);
#endif
if (KE != NULL)
outstr(KE);
if (RS != NULL)
outstr(RS);
mc_wflush();
}
void mc_wreturn(void)
{
int x, y;
ELM *e;
#ifdef SMOOTH
curwin = NULL;
#endif
curattr = -1;
curcolor = -1;
setcbreak(1); /* Cbreak, no echo */
if (IS != NULL)
outstr(IS); /* Initialization string */
if (EA != NULL)
outstr(EA); /* Graphics init. */
if (KS != NULL)
outstr(KS); /* Keypad mode */
_gotoxy(0, 0);
_cursor(ocursor);
e = gmap;
for (y = 0; y <LINES; y++) {
for(x = 0; x < COLS; x++) {
_write(e->value, -1, x, y, e->attr, e->color);
e++;
}
}
_gotoxy(oldx, oldy);
mc_wflush();
}
/*
* Redraw the whole window.
*/
void mc_wredraw(WIN *w, int newdirect)
{
int minx, maxx, miny, maxy;
ELM *e;
int x, y;
int addcnt;
minx = w->x1;
maxx = w->x2;
miny = w->y1;
maxy = w->y2;
addcnt = stdwin->xs - w->xs;
if (w->border) {
minx--;
maxx++;
miny--;
maxy++;
addcnt -= 2;
}
_gotoxy(minx, miny);
_cursor(CNONE);
e = gmap + (miny * stdwin->xs) + minx;
for (y = miny; y <= maxy; y++) {
for(x = minx; x <= maxx; x++) {
_write(e->value, -1, x, y, e->attr, e->color);
e++;
}
e += addcnt;
}
_gotoxy(w->x1 + w->curx, w->y1 + w->cury);
_cursor(w->cursor);
mc_wflush();
w->direct = newdirect;
}
/*
* Clear to end of line, low level.
*/
static int _wclreol(WIN *w)
{
int x;
int doit = 1;
int y;
#ifdef SMOOTH
curwin = w;
#endif
y = w->cury + w->y1;
if (w->direct && (w->x2 == COLS - 1) && CE) {
_gotoxy(w->curx + w->x1, y);
_setattr(w->attr, w->color);
outstr(CE);
doit = 0;
}
for (x = w->curx + w->x1; x <= w->x2; x++) {
_write(' ', (w->direct && doit) ? 1 : 0, x, y, w->attr, w->color);
}
return doit;
}
/*
* Scroll a window.
*/
void mc_wscroll(WIN *win, int dir)
{
ELM *e, *f;
char *src, *dst;
int x, y;
int doit = 1;
int ocurx, fs = 0, len;
int phys_scr = 0;
#ifdef SMOOTH
curwin = win;
#endif
/*
* If the window *is* the physical screen, we can scroll very simple.
* This improves performance on slow screens (eg ATARI ST) dramatically.
*/
if (win->direct && SF != NULL &&
(dir == S_UP || SR != NULL) && (LINES == win->sy2 - win->sy1 + 1)) {
doit = 0;
phys_scr = 1;
_setattr(win->attr, win->color);
if (dir == S_UP) {
_gotoxy(0, LINES - 1);
outstr(SF);
} else {
_gotoxy(0, 0);
outstr(SR);
}
}
/*
* If the window is as wide as the physical screen, we can
* scroll it with insert/delete line (or set scroll region - vt100!)
*/
else if (win->direct && win->xs == COLS &&
((CS != NULL && SF != NULL && SR != NULL)
|| (Dl != NULL && Al != NULL))) {
doit = 0;
phys_scr = 1;
_setattr(win->attr, win->color);
if (CS != NULL && SF != NULL && SR != NULL) { /* Scrolling Region */
/* If the scroll region we want to initialize already is as
* big as the physical screen, we don't _have_ to
* initialize it.
*/
if (win->sy2 == LINES - 1 && win->sy1 == 0)
fs = 1;
if (!fs) {
outstr(tgoto(CS, win->sy2, win->sy1));
cury = 0;
}
if (dir == S_UP) {
_gotoxy(0, win->sy2);
outstr(SF);
} else {
_gotoxy(0, win->sy1);
outstr(SR);
}
if (!fs) {
outstr(tgoto(CS, LINES - 1, 0));
cury = 0;
}
_gotoxy(0, win->sy2);
} else { /* Use insert/delete line */
if (dir == S_UP) {
_gotoxy(0, win->sy1);
outstr(Dl);
_gotoxy(0, win->sy2);
outstr(Al);
} else {
_gotoxy(0, win->sy2);
outstr(Dl);
_gotoxy(0, win->sy1);
outstr(Al);
}
}
}
/* If a terminal has automatic margins, we can't write
* to the lower right. After scrolling we have to restore
* the non-visible character that is now visible.
*/
if (sflag && win->sy2 == (LINES - 1) && win->sy1 != win->sy2) {
if (dir == S_UP) {
_write(oldc.value, 1, COLS - 1, LINES - 2,
oldc.attr, oldc.color);
}
sflag = 0;
}
ocurx = win->curx;
/* If this window has a history buf, see if we want to use it. */
if (win->histbuf && dir == S_UP &&
win->sy2 == win->y2 && win->sy1 == win->y1) {
/* Calculate screen buffer */
e = gmap + win->y1 * COLS + win->x1;
/* Calculate history buffer */
f = win->histbuf + (win->xs * win->histline);
/* Copy line from screen to history buffer */
memcpy((char *)f, (char *)e, win->xs * sizeof(ELM));
/* Postion the next line in the history buffer */
win->histline++;
if (win->histline >= win->histlines)
win->histline = 0;
}
/* If the window is screen-wide and has no border, there
* is a much simpler & FASTER way of scrolling the memory image !!
*/
if (phys_scr) {
len = (win->sy2 - win->sy1) * win->xs * sizeof(ELM);
if (dir == S_UP) {
dst = (char *)&gmap[0]; /* First line */
src = (char *)&gmap[win->xs]; /* Second line */
win->cury = win->sy2 - win->y1;
} else {
src = (char *)&gmap[0]; /* First line */
dst = (char *)&gmap[win->xs]; /* Second line */
win->cury = win->sy1 - win->y1;
}
/* memmove copies len bytes from src to dst, even if the
* objects overlap.
*/
fflush(stdout);
#ifdef _SYSV
memcpy((char *)dst, (char *)src, len);
#else
# ifdef _BSD43
bcopy((char *)src, (char *)dst, len);
# else
memmove((char *)dst, (char *)src, len);
# endif
#endif
} else {
/* Now scroll the memory image. */
if (dir == S_UP) {
for (y = win->sy1 + 1; y <= win->sy2; y++) {
e = gmap + y * COLS + win->x1;
for (x = win->x1; x <= win->x2; x++) {
_write(e->value, win->direct && doit, x, y - 1, e->attr, e->color);
e++;
}
}
win->curx = 0;
win->cury = win->sy2 - win->y1;
if (doit)
_wclreol(win);
} else {
for (y = win->sy2 - 1; y >= win->sy1; y--) {
e = gmap + y * COLS + win->x1;
for (x = win->x1; x <= win->x2; x++) {
_write(e->value, win->direct && doit, x, y + 1, e->attr, e->color);
e++;
}
}
win->curx = 0;
win->cury = win->sy1 - win->y1;
if (doit)
_wclreol(win);
}
}
win->curx = ocurx;
if (!doit)
for (x = win->x1; x <= win->x2; x++)
_write(' ', 0, x, win->y1 + win->cury, win->attr, win->color);
if (!_intern && win->direct)
_gotoxy(win->x1 + win->curx, win->y1 + win->cury);
if (dirflush && !_intern && win->direct)
mc_wflush();
}
/*
* Locate the cursor in a window.
*/
void mc_wlocate(WIN *win, int x, int y)
{
if (x < 0)
x = 0;
if (y < 0)
y = 0;
if (x >= win->xs)
x = win->xs - 1;
if (y >= win->ys)
y = win->ys - 1;
win->curx = x;
win->cury = y;
if (win->direct)
_gotoxy(win->x1 + x, win->y1 + y);
if (dirflush)
mc_wflush();
}
/*
* Print a character in a window.
*/
void mc_wputc(WIN *win, wchar_t c)