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

#ifndef lint
static  char *sccsid = "@(#)cmd.c       3.8 83/08/26";
#endif

#include "defs.h"

docmd()
{
       register char c;
       register struct ww *w;

       if (!terse)
               wwadd(cmdwin, &wwhead);
       if (selwin != 0)
               wwcursor(selwin, 1);
top:
       while ((c = bgetc()) >= 0) {
               if (!terse)
                       (void) wwputs("\r\n", cmdwin);
               switch (c) {
               default:
                       if (c == escapec)
                               goto foo;
                       break;
               case 'h': case 'j': case 'k': case 'l':
               case CTRL(y):
               case CTRL(e):
               case CTRL(u):
               case CTRL(d):
               case CTRL(b):
               case CTRL(f):
               case CTRL(s):
               case CTRL(q):
               case CTRL([):
               foo:
                       if (selwin == 0) {
                               error("No window.");
                               continue;
                       }
               }
               switch (c) {
               case '1': case '2': case '3': case '4': case '5':
               case '6': case '7': case '8': case '9':
                       if ((w = window[c - '1']) == 0) {
                               wwbell();
                               break;
                       }
                       setselwin(w);
                       goto out;
               case '%':
                       if ((w = getwin()) != 0)
                               setselwin(w);
                       break;
               case 'c':
                       if ((w = getwin()) != 0)
                               c_close(w);
                       break;
               case 'C':
                       c_close((struct ww *)0);
                       break;
               case 'w':
                       c_window();
                       break;
               case 'S':
                       c_show();
                       break;
               case 'L':
                       c_list();
                       break;
               case ':':
                       c_colon();
                       break;
               case 'h':
                       (void) wwwrite(selwin, "\b", 1);
                       break;
               case 'j':
                       (void) wwwrite(selwin, "\n", 1);
                       break;
               case 'k':
                       (void) wwwrite(selwin, "\033A", 2);
                       break;
               case 'l':
                       (void) wwwrite(selwin, "\033C", 2);
                       break;
               case CTRL(e):
                       wwscroll(selwin, 1);
                       break;
               case CTRL(y):
                       wwscroll(selwin, -1);
                       break;
               case CTRL(d):
                       wwscroll(selwin, selwin->ww_w.nr / 2);
                       break;
               case CTRL(u):
                       wwscroll(selwin, - selwin->ww_w.nr / 2);
                       break;
               case CTRL(f):
                       wwscroll(selwin, selwin->ww_w.nr);
                       break;
               case CTRL(b):
                       wwscroll(selwin, - selwin->ww_w.nr);
                       break;
               case CTRL(s):
                       (void) write(selwin->ww_pty,
                               &wwwintty.ww_tchars.t_stopc, 1);
                       break;
               case CTRL(q):
                       (void) write(selwin->ww_pty,
                               &wwwintty.ww_tchars.t_startc, 1);
                       break;
               case CTRL(l):
                       wwredraw();
                       break;
               case '?':
                       c_help();
                       break;
               case CTRL([):
                       goto out;
               case CTRL(z):
                       wwsuspend();
                       break;
               case 'q':
                       c_quit();
                       if (quit)
                               goto out;
                       break;
               /* undocumented commands */
               case 's':
                       c_stat();
                       break;
               case 't':
                       c_time(RUSAGE_SELF);
                       break;
               case 'T':
                       c_time(RUSAGE_CHILDREN);
                       break;
               /* debugging commands */
               case 'M':
                       if (!debug)
                               goto badcmd;
                       wwdumpsmap();
                       break;
               case 'V':
                       if (!debug)
                               goto badcmd;
                       if ((w = getwin()) != 0)
                               wwdumpnvis(w);
                       break;
               case 'D':
                       if (!debug)
                               goto badcmd;
                       if ((w = getwin()) != 0)
                               wwdumpcov(w);
                       break;
               case 'W':
                       if (!debug)
                               goto badcmd;
                       if ((w = getwin()) != 0)
                               wwdumpwin(w);
                       break;
               default:
               badcmd:
                       if (c == escapec) {
                               (void) write(selwin->ww_pty, &escapec, 1);
                               goto out;
                       }
                       if (!terse)
                               wwbell();
                       error("Type ? for help.");
                       break;
               }
       }
       if (terse)
               wwsetcursor(0, 0);
       else {
               if (!terse)
                       (void) wwputs("Command: ", cmdwin);
               wwsetcursor(wwcurrow(cmdwin), wwcurcol(cmdwin));
       }
       while (bpeekc() < 0)
               bread();
       goto top;
out:
       if (!quit) {
               curwin = selwin;
               if (!terse) {
                       wwdelete(cmdwin);
                       reframe();
               }
       }
       if (selwin != 0)
               wwcursor(selwin, 0);
}

struct ww *
getwin()
{
       register int c;
       struct ww *w = 0;

       if (!terse)
               (void) wwputs("Which window? ", cmdwin);
       wwsetcursor(wwcurrow(cmdwin), wwcurcol(cmdwin));
       while ((c = bgetc()) < 0)
               bread();
       if (debug && c == 'c')
               w = cmdwin;
       else if (debug && c == 'f')
               w = framewin;
       else if (debug && c == 'b')
               w = boxwin;
       else if (c >= '1' && c < NWINDOW + '1')
               w = window[c - '1'];
       if (w == 0)
               wwbell();
       if (!terse)
               (void) wwputs("\r\n", cmdwin);
       return w;
}

setselwin(w)
struct ww *w;
{
       if ((selwin = w) != 0)
               front(w);
}

front(w)
register struct ww *w;
{
       char moved = 0;

       while (w->ww_back != framewin) {
               wwmoveup(w);
               moved = 1;
       }
       if (moved)
               reframe();
}

reframe()
{
       register struct ww *w;

       wwunframe(framewin);
       for (w = wwhead.ww_back; w != &wwhead; w = w->ww_back)
               if (w->ww_hasframe) {
                       wwframe(w, framewin);
                       labelwin(w);
               }
}

labelwin(w)
register struct ww *w;
{
       int mode = w == selwin ? WWM_REV : 0;

       if (w->ww_id >= 0) {
               char buf[2];

               buf[0] = w->ww_id + '1';
               buf[1] = 0;
               wwlabel(w, framewin, 1, buf, mode);
       }
       if (w->ww_label) {
               int col;

               if (w->ww_center) {
                       col = (w->ww_w.nc - strlen(w->ww_label)) / 2;
                       col = MAX(3, col);
               } else
                       col = 3;
               wwlabel(w, framewin, col, w->ww_label, mode);
       }
}