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/*
 *      Display a box with buttons and edit the buttons
 *
 *      Copyright (c) 1990-93 Udo Munk
 */

#ifdef AIX
#define NLS
#endif

#include <curses.h>
#include <string.h>
#include "winfun.h"     

extern WINDOW *open_window();
extern int close_window();

button_box(bp)
struct bbox *bp;
{
	register int i, j, k;
	int grp = 0, but = 0;
	int bh, bw;
	int eoj = 1;
	int *p;
	int ret;
	WINDOW *w;

	bh = bp->b_anz * 3 + 3;     /* compute high of box */
	bw = strlen(bp->b_text) + 2;/* compute width of box */
	for (i = 0; i < bp->b_anz; i++) {
		j = strlen(bp->b_ptr[i]->g_text) + 2;
		if (j > bw)
			bw = j;
		for (j = 0, k = 0; j < bp->b_ptr[i]->g_anz; j++)
			k += strlen(bp->b_ptr[i]->g_ptr[j]->b_text) + 6;
		if (k > bw)
			bw = k;
	}

	if ((w = open_window(bh, bw, (LINES-bh)/2, (COLS-bw)/2)) == (WINDOW *) 0)
		nomem();

	wattron(w, A_REVERSE);  /* output inverted box */
	for (i = 0; i < bh; i++)
		for (j = 0; j < bw; j++)
			mvwaddch(w, i, j, ' ');
	mvwaddstr(w, 1, 1, bp->b_text);
	for (i = 0; i < bp->b_anz; i++) {
		mvwaddstr(w, i*3+3, 1, bp->b_ptr[i]->g_text);
		wmove(w, i*3+4, 1);
		for (j = 0; j < bp->b_ptr[i]->g_anz; j++) {
			wprintw(w, "%s ", bp->b_ptr[i]->g_ptr[j]->b_text);
			wprintw(w, "[%c]  ", (bp->b_ptr[i]->g_ptr[j]->b_val) ? 'x' : ' ');
		}
	}
	wrefresh(w);
	cursoron();

	while (eoj) {          /* now edit the buttons */
		for (i = 0, j = 0; i <= but; i++)
			j += strlen(bp->b_ptr[grp]->g_ptr[i]->b_text) + 6;
		wmove(w, grp*3+4, j-3);
		wrefresh(w);
		switch (k = wgetch(w)) {
		case '\r':      /* ready, leave function */
		case KEY_ENTER:
			ret = WIN_OK;
			eoj = 0;
			break;
		case 033:	/* ESC, function aborted */
			ret = WIN_ABORT;
			eoj = 0;
			break;
		case ' ':	/* switch current button on/off */
			p = &(bp->b_ptr[grp]->g_ptr[but]->b_val);
			if (*p == 0) {
				*p = 1;
				waddch(w, 'x');
			} else {
				*p = 0;
				waddch(w, ' ');
			}
			break;
		case KEY_RIGHT:		/* go to next button right */
			but++;
			if (but >= bp->b_ptr[grp]->g_anz)
				but = 0;
			break;
		case KEY_LEFT:		/* go to next button left */
			but--;
			if (but < 0)
				but = bp->b_ptr[grp]->g_anz - 1;
			break;
		case KEY_DOWN:		/* go to next button down */
			grp++;
			if (grp >= bp->b_anz)
				grp = 0;
			break;
		case KEY_UP:		/* go to next button up */
			grp--;
			if (grp < 0)
				grp = bp->b_anz - 1;
			break;
		}
	}
	close_window(w);
	cursoroff();
	return(ret);
}

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