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https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Edward Wang at The University of California, Berkeley.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)cmd5.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#include "defs.h"
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/*
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* Window movement.
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*/
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c_move(w)
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register struct ww *w;
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{
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int col, row;
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int mincol, minrow;
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int maxcol, maxrow;
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int curcol, currow;
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if (!terse)
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wwputs("New window position: ", cmdwin);
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col = w->ww_w.l;
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row = w->ww_w.t;
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wwadd(boxwin, framewin->ww_back);
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for (;;) {
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wwbox(boxwin, row - 1, col - 1, w->ww_w.nr + 2, w->ww_w.nc + 2);
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getminmax(row, w->ww_w.nr, 1, wwnrow,
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&currow, &minrow, &maxrow);
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getminmax(col, w->ww_w.nc, 0, wwncol,
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&curcol, &mincol, &maxcol);
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wwsetcursor(currow, curcol);
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while (wwpeekc() < 0)
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wwiomux();
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switch (getpos(&row, &col, minrow, mincol, maxrow, maxcol)) {
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case 3:
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wwunbox(boxwin);
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wwdelete(boxwin);
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return;
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case 2:
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wwunbox(boxwin);
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break;
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case 1:
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wwunbox(boxwin);
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case 0:
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continue;
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}
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break;
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}
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wwdelete(boxwin);
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if (!terse)
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wwputc('\n', cmdwin);
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wwcurtowin(cmdwin);
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movewin(w, row, col);
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}
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movewin(w, row, col)
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register struct ww *w;
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{
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struct ww *back = w->ww_back;
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w->ww_alt.t = w->ww_w.t;
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w->ww_alt.l = w->ww_w.l;
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wwdelete(w);
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wwmove(w, row, col);
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wwadd(w, back);
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reframe();
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}
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/*
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* Weird stufff, don't ask.
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*/
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getminmax(x, n, a, b, curx, minx, maxx)
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register x, n, a, b;
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int *curx, *minx, *maxx;
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{
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if (x < 0)
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*curx = x + n - 1;
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else
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*curx = x;
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if (x <= a)
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*minx = 1 - n;
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else if (x <= b - n)
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*minx = a;
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else
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*minx = b - n;
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if (x >= b - n)
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*maxx = b - 1;
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else if (x >= a)
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*maxx = b - n;
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else
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*maxx = a;
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}
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