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Annotation of src/usr.bin/window/cmd5.c, Revision 1.1

1.1     ! deraadt     1: /*     $NetBSD: cmd5.c,v 1.3 1995/09/28 10:34:09 tls Exp $     */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1983, 1993
        !             5:  *     The Regents of the University of California.  All rights reserved.
        !             6:  *
        !             7:  * This code is derived from software contributed to Berkeley by
        !             8:  * Edward Wang at The University of California, Berkeley.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. All advertising materials mentioning features or use of this software
        !            19:  *    must display the following acknowledgement:
        !            20:  *     This product includes software developed by the University of
        !            21:  *     California, Berkeley and its contributors.
        !            22:  * 4. Neither the name of the University nor the names of its contributors
        !            23:  *    may be used to endorse or promote products derived from this software
        !            24:  *    without specific prior written permission.
        !            25:  *
        !            26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            36:  * SUCH DAMAGE.
        !            37:  */
        !            38:
        !            39: #ifndef lint
        !            40: #if 0
        !            41: static char sccsid[] = "@(#)cmd5.c     8.1 (Berkeley) 6/6/93";
        !            42: #else
        !            43: static char rcsid[] = "$NetBSD: cmd5.c,v 1.3 1995/09/28 10:34:09 tls Exp $";
        !            44: #endif
        !            45: #endif /* not lint */
        !            46:
        !            47: #include "defs.h"
        !            48:
        !            49: /*
        !            50:  * Window movement.
        !            51:  */
        !            52:
        !            53: c_move(w)
        !            54: register struct ww *w;
        !            55: {
        !            56:        int col, row;
        !            57:        int mincol, minrow;
        !            58:        int maxcol, maxrow;
        !            59:        int curcol, currow;
        !            60:
        !            61:        if (!terse)
        !            62:                wwputs("New window position: ", cmdwin);
        !            63:        col = w->ww_w.l;
        !            64:        row = w->ww_w.t;
        !            65:        wwadd(boxwin, framewin->ww_back);
        !            66:        for (;;) {
        !            67:                wwbox(boxwin, row - 1, col - 1, w->ww_w.nr + 2, w->ww_w.nc + 2);
        !            68:                getminmax(row, w->ww_w.nr, 1, wwnrow,
        !            69:                        &currow, &minrow, &maxrow);
        !            70:                getminmax(col, w->ww_w.nc, 0, wwncol,
        !            71:                        &curcol, &mincol, &maxcol);
        !            72:                wwsetcursor(currow, curcol);
        !            73:                while (wwpeekc() < 0)
        !            74:                        wwiomux();
        !            75:                switch (getpos(&row, &col, minrow, mincol, maxrow, maxcol)) {
        !            76:                case 3:
        !            77:                        wwunbox(boxwin);
        !            78:                        wwdelete(boxwin);
        !            79:                        return;
        !            80:                case 2:
        !            81:                        wwunbox(boxwin);
        !            82:                        break;
        !            83:                case 1:
        !            84:                        wwunbox(boxwin);
        !            85:                case 0:
        !            86:                        continue;
        !            87:                }
        !            88:                break;
        !            89:        }
        !            90:        wwdelete(boxwin);
        !            91:        if (!terse)
        !            92:                wwputc('\n', cmdwin);
        !            93:        wwcurtowin(cmdwin);
        !            94:        movewin(w, row, col);
        !            95: }
        !            96:
        !            97: movewin(w, row, col)
        !            98: register struct ww *w;
        !            99: {
        !           100:        struct ww *back = w->ww_back;
        !           101:
        !           102:        w->ww_alt.t = w->ww_w.t;
        !           103:        w->ww_alt.l = w->ww_w.l;
        !           104:        wwdelete(w);
        !           105:        wwmove(w, row, col);
        !           106:        wwadd(w, back);
        !           107:        reframe();
        !           108: }
        !           109:
        !           110: /*
        !           111:  * Weird stufff, don't ask.
        !           112:  */
        !           113: getminmax(x, n, a, b, curx, minx, maxx)
        !           114: register x, n, a, b;
        !           115: int *curx, *minx, *maxx;
        !           116: {
        !           117:        if (x < 0)
        !           118:                *curx = x + n - 1;
        !           119:        else
        !           120:                *curx = x;
        !           121:
        !           122:        if (x <= a)
        !           123:                *minx = 1 - n;
        !           124:        else if (x <= b - n)
        !           125:                *minx = a;
        !           126:        else
        !           127:                *minx = b - n;
        !           128:
        !           129:        if (x >= b - n)
        !           130:                *maxx = b - 1;
        !           131:        else if (x >= a)
        !           132:                *maxx = b - n;
        !           133:        else
        !           134:                *maxx = a;
        !           135: }