/*      $OpenBSD: prtable.c,v 1.11 2008/08/04 18:42:09 millert Exp $    */
/*      $NetBSD: prtable.c,v 1.2 1995/03/21 12:14:42 cgd Exp $  */

/*-
 * Copyright (c) 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Barry Brachman.
 *
 * 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. 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.
 *
 *      @(#)prtable.c   8.1 (Berkeley) 6/11/93
 */

#include <curses.h>

#include "extern.h"

#define NCOLS   5

static int      get_maxlen(char **, int, int (*)(char **, int));

extern int      lastline, LIST_LINE, LIST_COL;

/*
 * Routine to print a table
 * Modified from 'ls.c' mods (BJB/83)
 * Arguments:
 *      base    - address of first entry
 *      num     - number of entries
 *      d_cols  - number of columns to use if > 0, "best" size if == 0
 *      width   - max line width if not zero
 *      prentry - address of the routine to call to print the string
 *      length  - address of the routine to call to determine the length
 *                of string to be printed 
 *
 * prtable and length are called with the address of the base and
 * an index
 */
void
prtable(char **base, int num, int d_cols, int width, 
        void (*prentry)(char **, int), int (*length)(char **, int))
{
        int c, j;
        int a, b, cols, loc, maxlen, nrows, z;
        int col, row;

        if (num == 0)
                return;
        maxlen = get_maxlen(base, num, length) + 1;
        if (d_cols > 0)
                cols = d_cols;
        else
                cols = width / maxlen;
        if (cols == 0)
                cols = NCOLS;
        nrows = (num - 1) / cols + 1;
        for (a = 1; a <= nrows; a++) {
                b = c = z = loc = 0;
                for (j = 0; j < num; j++) {
                        c++;
                        if (c >= a + b)
                                break;
                }
                while (j < num) {
                        (*prentry)(base, j);
                        loc += (*length)(base, j);
                        z++;
                        b += nrows;
                        for (j++; j < num; j++) {
                                c++;
                                if (c >= a + b)
                                        break;
                        }
                        if (j < num) {
                                while (loc < z * maxlen) {
                                        addch(' ');
                                        loc++;
                                }
                        }
                }
                getyx(stdscr, row, col);
                move(row + 1, 0);
                if (row + 1 == lastline && a != nrows) {
                        attron(A_REVERSE);
                        printw("--More--");
                        attroff(A_REVERSE);
                        do {
                            j = inputch();
                        } while (j != ' ' && j != 'q' && j != 'Q');
                        if (j == 'q' || j == 'Q') {
                                move(row + 1, 0);
                                wclrtoeol(stdscr);
                                break;
                        }
                        move(LIST_LINE, LIST_COL);
                        wclrtobot(stdscr);
                }
        }
        refresh();
}

static int
get_maxlen(char **base, int num, int (*length)(char **, int))
{
        int i, len, max;

        max = (*length)(base, 0);
        for (i = 0; i < num; i++) {
                if ((len = (*length)(base, i)) > max)
                        max = len;
        }
        return(max);
}