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- /*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Edward Wang at The University of California, Berkeley.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)cmd5.c 3.18 (Berkeley) 6/6/90";
- #endif /* not lint */
-
- #include "defs.h"
-
- /*
- * Window movement.
- */
-
- c_move(w)
- register struct ww *w;
- {
- int col, row;
- int mincol, minrow;
- int maxcol, maxrow;
- int curcol, currow;
-
- if (!terse)
- wwputs("New window position: ", cmdwin);
- col = w->ww_w.l;
- row = w->ww_w.t;
- wwadd(boxwin, framewin->ww_back);
- for (;;) {
- wwbox(boxwin, row - 1, col - 1, w->ww_w.nr + 2, w->ww_w.nc + 2);
- getminmax(row, w->ww_w.nr, 1, wwnrow,
- &currow, &minrow, &maxrow);
- getminmax(col, w->ww_w.nc, 0, wwncol,
- &curcol, &mincol, &maxcol);
- wwsetcursor(currow, curcol);
- while (wwpeekc() < 0)
- wwiomux();
- switch (getpos(&row, &col, minrow, mincol, maxrow, maxcol)) {
- case 3:
- wwunbox(boxwin);
- wwdelete(boxwin);
- return;
- case 2:
- wwunbox(boxwin);
- break;
- case 1:
- wwunbox(boxwin);
- case 0:
- continue;
- }
- break;
- }
- wwdelete(boxwin);
- if (!terse)
- wwputc('\n', cmdwin);
- wwcurtowin(cmdwin);
- movewin(w, row, col);
- }
-
- movewin(w, row, col)
- register struct ww *w;
- {
- struct ww *back = w->ww_back;
-
- w->ww_alt.t = w->ww_w.t;
- w->ww_alt.l = w->ww_w.l;
- wwdelete(w);
- wwmove(w, row, col);
- wwadd(w, back);
- reframe();
- }
-
- /*
- * Weird stufff, don't ask.
- */
- getminmax(x, n, a, b, curx, minx, maxx)
- register x, n, a, b;
- int *curx, *minx, *maxx;
- {
- if (x < 0)
- *curx = x + n - 1;
- else
- *curx = x;
-
- if (x <= a)
- *minx = 1 - n;
- else if (x <= b - n)
- *minx = a;
- else
- *minx = b - n;
-
- if (x >= b - n)
- *maxx = b - 1;
- else if (x >= a)
- *maxx = b - n;
- else
- *maxx = a;
- }
-