xref: /freebsd-src/contrib/bsddialog/lib/lib_util.c (revision 263660c061ac76d449cbca7bdd0db2ecdfad76d9)

/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2021-2022 Alfonso Sabato Siciliano
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 */

#include <sys/param.h>

#include <ctype.h>
#include <curses.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "bsddialog.h"
#include "bsddialog_theme.h"
#include "lib_util.h"

extern struct bsddialog_theme t;

#define TABLEN     4    /* Default tab len */
#define ERRBUFLEN  1024 /* Error buffer */

/* Error */
static char errorbuffer[ERRBUFLEN];

const char *get_error_string(void)
{
	return (errorbuffer);
}

void set_error_string(char *str)
{
	strncpy(errorbuffer, str, ERRBUFLEN-1);
}

/* Clear */
int hide_widget(int y, int x, int h, int w, bool withshadow)
{
	WINDOW *clear;

	if ((clear = newwin(h, w, y + t.shadow.h, x + t.shadow.w)) == NULL)
		RETURN_ERROR("Cannot hide the widget");
	wbkgd(clear, t.screen.color);

	if (withshadow)
		wrefresh(clear);

	mvwin(clear, y, x);
	wrefresh(clear);

	delwin(clear);

	return (0);
}

/* F1 help */
int f1help(struct bsddialog_conf *conf)
{
	int output;
	struct bsddialog_conf hconf;

	bsddialog_initconf(&hconf);
	hconf.title           = "HELP";
	hconf.button.ok_label = "EXIT";
	hconf.clear           = true;
	hconf.ascii_lines     = conf->ascii_lines;
	hconf.no_lines        = conf->no_lines;
	hconf.shadow          = conf->shadow;
	hconf.text.highlight  = conf->text.highlight;

	output = BSDDIALOG_OK;
	if (conf->f1_message != NULL)
		output = bsddialog_msgbox(&hconf, conf->f1_message, 0, 0);

	if (output != BSDDIALOG_ERROR && conf->f1_file != NULL)
		output = bsddialog_textbox(&hconf, conf->f1_file, 0, 0);

	return (output == BSDDIALOG_ERROR ? BSDDIALOG_ERROR : 0);
}

/* Buttons */
static void
draw_button(WINDOW *window, int y, int x, int size, const char *text,
    bool selected, bool shortcut)
{
	int i, color_arrows, color_shortkey, color_button;

	if (selected) {
		color_arrows = t.button.f_delimcolor;
		color_shortkey = t.button.f_shortcutcolor;
		color_button = t.button.f_color;
	} else {
		color_arrows = t.button.delimcolor;
		color_shortkey = t.button.shortcutcolor;
		color_button = t.button.color;
	}

	wattron(window, color_arrows);
	mvwaddch(window, y, x, t.button.leftch);
	wattroff(window, color_arrows);
	wattron(window, color_button);
	for (i = 1; i < size - 1; i++)
		waddch(window, ' ');
	wattroff(window, color_button);
	wattron(window, color_arrows);
	mvwaddch(window, y, x + i, t.button.rightch);
	wattroff(window, color_arrows);

	x = x + 1 + ((size - 2 - strlen(text))/2);
	wattron(window, color_button);
	mvwaddstr(window, y, x, text);
	wattroff(window, color_button);

	if (shortcut) {
		wattron(window, color_shortkey);
		mvwaddch(window, y, x, text[0]);
		wattroff(window, color_shortkey);
	}
}

void
draw_buttons(WINDOW *window, struct buttons bs, bool shortcut)
{
	int i, x, startx, y, rows, cols;

	getmaxyx(window, rows, cols);
	y = rows - 2;

	startx = bs.sizebutton * bs.nbuttons + (bs.nbuttons-1) * t.button.space;
	startx = cols/2 - startx/2;

	for (i = 0; i < (int) bs.nbuttons; i++) {
		x = i * (bs.sizebutton + t.button.space);
		draw_button(window, y, startx + x, bs.sizebutton, bs.label[i],
		    i == bs.curr, shortcut);
	}
}

void
get_buttons(struct bsddialog_conf *conf, struct buttons *bs, char *yesoklabel,
    char *nocancellabel)
{
	int i;
#define SIZEBUTTON              8
#define DEFAULT_BUTTON_LABEL	BUTTON_OK_LABEL
#define DEFAULT_BUTTON_VALUE	BSDDIALOG_OK

	bs->nbuttons = 0;
	bs->curr = 0;
	bs->sizebutton = 0;

	if (yesoklabel != NULL && conf->button.without_ok == false) {
		bs->label[0] = conf->button.ok_label != NULL ?
		    conf->button.ok_label : yesoklabel;
		bs->value[0] = BSDDIALOG_OK;
		bs->nbuttons += 1;
	}

	if (conf->button.with_extra) {
		bs->label[bs->nbuttons] = conf->button.extra_label != NULL ?
		    conf->button.extra_label : "Extra";
		bs->value[bs->nbuttons] = BSDDIALOG_EXTRA;
		bs->nbuttons += 1;
	}

	if (nocancellabel != NULL && conf->button.without_cancel == false) {
		bs->label[bs->nbuttons] = conf->button.cancel_label ?
		    conf->button.cancel_label : nocancellabel;
		bs->value[bs->nbuttons] = BSDDIALOG_CANCEL;
		if (conf->button.default_cancel)
			bs->curr = bs->nbuttons;
		bs->nbuttons += 1;
	}

	if (conf->button.with_help) {
		bs->label[bs->nbuttons] = conf->button.help_label != NULL ?
		    conf->button.help_label : "Help";
		bs->value[bs->nbuttons] = BSDDIALOG_HELP;
		bs->nbuttons += 1;
	}

	if (conf->button.generic1_label != NULL) {
		bs->label[bs->nbuttons] = conf->button.generic1_label;
		bs->value[bs->nbuttons] = BSDDIALOG_GENERIC1;
		bs->nbuttons += 1;
	}

	if (conf->button.generic2_label != NULL) {
		bs->label[bs->nbuttons] = conf->button.generic2_label;
		bs->value[bs->nbuttons] = BSDDIALOG_GENERIC2;
		bs->nbuttons += 1;
	}

	if (bs->nbuttons == 0) {
		bs->label[0] = DEFAULT_BUTTON_LABEL;
		bs->value[0] = DEFAULT_BUTTON_VALUE;
		bs->nbuttons = 1;
	}

	if (conf->button.default_label != NULL) {
		for (i = 0; i < (int)bs->nbuttons; i++) {
			if (strcmp(conf->button.default_label,
			    bs->label[i]) == 0)
				bs->curr = i;
		}
	}

	bs->sizebutton = MAX(SIZEBUTTON - 2, strlen(bs->label[0]));
	for (i = 1; i < (int)bs->nbuttons; i++)
		bs->sizebutton = MAX(bs->sizebutton, strlen(bs->label[i]));
	bs->sizebutton += 2;
}

bool shortcut_buttons(int key, struct buttons *bs)
{
	bool match;
	unsigned int i;

	match = false;
	for (i = 0; i < bs->nbuttons; i++) {
		if (tolower(key) == tolower(bs->label[i][0])) {
			bs->curr = i;
			match = true;
			break;
		}
	}

	return (match);
}

/* Text */
static bool is_text_attr(const char *text)
{
	if (strnlen(text, 3) < 3)
		return (false);

	if (text[0] != '\\' || text[1] != 'Z')
		return (false);

	return (strchr("nbBrRuU01234567", text[2]) == NULL ? false : true);
}

static bool check_set_text_attr(WINDOW *win, char *text)
{
	if (is_text_attr(text) == false)
		return (false);

	if ((text[2] - '0') >= 0 && (text[2] - '0') < 8) {
		wattron(win, bsddialog_color(text[2] - '0', COLOR_WHITE, 0));
		return (true);
	}

	switch (text[2]) {
	case 'n':
		wattron(win, t.dialog.color);
		wattrset(win, A_NORMAL);
		break;
	case 'b':
		wattron(win, A_BOLD);
		break;
	case 'B':
		wattroff(win, A_BOLD);
		break;
	case 'r':
		wattron(win, A_REVERSE);
		break;
	case 'R':
		wattroff(win, A_REVERSE);
		break;
	case 'u':
		wattron(win, A_UNDERLINE);
		break;
	case 'U':
		wattroff(win, A_UNDERLINE);
		break;
	}

	return (true);
}

static void
print_string(WINDOW *win, int *rows, int cols, int *y, int *x, char *str,
    bool color)
{
	int i, j, len, reallen;

	len = reallen = strlen(str);
	if (color) {
		i=0;
		while (i < len) {
			if (is_text_attr(str+i))
				reallen -= 3;
			i++;
		}
	}

	i = 0;
	while (i < len) {
		if (*x + reallen > cols) {
			*y = (*x != 0 ? *y+1 : *y);
			if (*y >= *rows) {
				*rows = *y + 1;
				wresize(win, *rows, cols);
			}
			*x = 0;
		}
		j = *x;
		while (j < cols && i < len) {
			if (color && check_set_text_attr(win, str+i)) {
				i += 3;
			} else {
				mvwaddch(win, *y, j, str[i]);
				i++;
				reallen--;
				j++;
				*x = j;
			}
		}
	}
}

static int
print_textpad(struct bsddialog_conf *conf, WINDOW *pad, const char *text)
{
	bool loop;
	int i, j, z, rows, cols, x, y, tablen;
	char *string;

	if ((string = malloc(strlen(text) + 1)) == NULL)
		RETURN_ERROR("Cannot build (analyze) text");

	getmaxyx(pad, rows, cols);
	tablen = (conf->text.tablen == 0) ? TABLEN : (int)conf->text.tablen;

	i = j = x = y = 0;
	loop = true;
	while (loop) {
		string[j] = text[i];

		if (strchr("\n\t  ", string[j]) != NULL || string[j] == '\0') {
			string[j] = '\0';
			print_string(pad, &rows, cols, &y, &x, string,
			    conf->text.highlight);
		}

		switch (text[i]) {
		case '\0':
			loop = false;
			break;
		case '\n':
			x = 0;
			y++;
			j = -1;
			break;
		case '\t':
			for (z = 0; z < tablen; z++) {
				if (x >= cols) {
					x = 0;
					y++;
				}
				x++;
			}
			j = -1;
			break;
		case ' ':
			x++;
			if (x >= cols) {
				x = 0;
				y++;
			}
			j = -1;
		}

		if (y >= rows) {
			rows = y + 1;
			wresize(pad, rows, cols);
		}

		j++;
		i++;
	}

	free(string);

	return (0);
}

/* Autosize */
static int
text_autosize(struct bsddialog_conf *conf, const char *text, int maxrows,
    int mincols, bool increasecols, int *h, int *w)
{
	int i, j, z, x, y;
	int tablen, wordlen, maxwordlen, nword, maxwords, line, maxwidth;
	int *words;
#define NL -1
#define WS -2

	maxwords = 1024;
	if ((words = calloc(maxwords, sizeof(int))) == NULL)
		RETURN_ERROR("Cannot alloc memory for text autosize");

	tablen = (conf->text.tablen == 0) ? TABLEN : (int)conf->text.tablen;
	maxwidth = widget_max_width(conf) - HBORDERS - TEXTHMARGINS;

	nword = 0;
	wordlen = 0;
	maxwordlen = 0;
	i=0;
	while (true) {
		if (conf->text.highlight && is_text_attr(text + i)) {
			i += 3;
			continue;
		}

		if (nword + tablen >= maxwords) {
			maxwords += 1024;
			if (realloc(words, maxwords * sizeof(int)) == NULL)
				RETURN_ERROR("Cannot realloc memory for text "
				    "autosize");
		}

		if (text[i] == '\0') {
			words[nword] = wordlen;
			maxwordlen = MAX(wordlen, maxwordlen);
			break;
		}

		if (strchr("\t\n  ", text[i]) != NULL) {
			maxwordlen = MAX(wordlen, maxwordlen);

			if (wordlen != 0) {
				words[nword] = wordlen;
				nword++;
				wordlen = 0;
			}

			if (text[i] == '\t') {
				for (j = 0; j < tablen; j++)
					words[nword + j] = 1;
				nword += tablen;
			} else {
				words[nword] = text[i] == '\n' ? NL : WS;
				nword++;
			}
		}
		else
			wordlen++;

		i++;
	}

	if (increasecols) {
		mincols = MAX(mincols, maxwordlen);
		mincols = MAX(mincols,
		    (int)conf->auto_minwidth - HBORDERS - TEXTHMARGINS);
		mincols = MIN(mincols, maxwidth);
	}

	while (true) {
		x = 0;
		y = 1;
		line=0;
		for (i = 0; i <= nword; i++) {
			if (words[i] == NL) {
				y++;
				x = 0;
			}
			else if (words[i] == WS) {
				x++;
				if (x >= mincols) {
					x = 0;
					y++;
				}
			}
			else {
				if (words[i] + x <= mincols)
					x += words[i];
				else {
					for (z = words[i]; z > 0; ) {
						y++;
						x = MIN(mincols, z);
						z -= x;
					}
				}
			}
			line = MAX(line, x);
		}

		if (increasecols == false)
			break;
		if (y <= maxrows || mincols >= maxwidth)
			break;
		mincols++;
	}

	*h = (nword == 0 && words[0] == 0) ? 0 : y;
	*w = MIN(mincols, line); /* wtext can be less than mincols */

	free(words);

	return (0);
}

int
text_size(struct bsddialog_conf *conf, int rows, int cols, const char *text,
    struct buttons *bs, int rowsnotext, int startwtext, int *htext, int *wtext)
{
	int wbuttons, maxhtext;
	bool changewtext;

	wbuttons = 0;
	if (bs != NULL) {
		wbuttons = bs->nbuttons * bs->sizebutton;
		if (bs->nbuttons > 0)
			wbuttons += (bs->nbuttons-1) * t.button.space;
	}

	if (cols == BSDDIALOG_AUTOSIZE) {
		startwtext = MAX(startwtext, wbuttons - TEXTHMARGINS);
		changewtext = true;
	} else if (cols == BSDDIALOG_FULLSCREEN) {
		startwtext = widget_max_width(conf) - VBORDERS - TEXTHMARGINS;
		changewtext = false;
	} else { /* fixed */
		startwtext = cols - VBORDERS - TEXTHMARGINS;
		changewtext = false;
	}

	if (rows == BSDDIALOG_AUTOSIZE || rows == BSDDIALOG_FULLSCREEN) {
		maxhtext = widget_max_height(conf) - VBORDERS - rowsnotext;
		if (bs != NULL)
			maxhtext -= 2;
	} else { /* fixed */
		maxhtext = rows - VBORDERS - rowsnotext;
		if (bs != NULL)
			maxhtext -= 2;
	}

	if (startwtext <= 0 && changewtext)
		startwtext = 1;
	if (maxhtext <= 0 || startwtext <= 0) {
		*htext = *wtext = 0;
		return (0);
	}

	if (text_autosize(conf, text, maxhtext, startwtext, changewtext,
	    htext, wtext) != 0)
		return (BSDDIALOG_ERROR);

	return (0);
}

int widget_max_height(struct bsddialog_conf *conf)
{
	int maxheight;

	maxheight = conf->shadow ? SCREENLINES - t.shadow.h : SCREENLINES;
	if (maxheight <= 0)
		RETURN_ERROR("Terminal too small, screen lines - shadow <= 0");

	if (conf->y > 0) {
		maxheight -= conf->y;
		if (maxheight <= 0)
			RETURN_ERROR("Terminal too small, screen lines - "
			    "shadow - y <= 0");
	}

	return (maxheight);
}

int widget_max_width(struct bsddialog_conf *conf)
{
	int maxwidth;

	maxwidth = conf->shadow ? SCREENCOLS - t.shadow.w : SCREENCOLS;
	if (maxwidth <= 0)
		RETURN_ERROR("Terminal too small, screen cols - shadow <= 0");

	if (conf->x > 0) {
		maxwidth -= conf->x;
		if (maxwidth <= 0)
			RETURN_ERROR("Terminal too small, screen cols - shadow "
			    "- x <= 0");
	}

	return (maxwidth);
}

int
widget_min_height(struct bsddialog_conf *conf, int htext, int minwidget,
    bool withbuttons)
{
	int min;

	min = 0;

	/* buttons */
	if (withbuttons)
		min += 2; /* buttons and border */

	/* text */
	min += htext;

	/* specific widget min height */
	min += minwidget;

	/* dialog borders */
	min += HBORDERS;
	/* conf.auto_minheight */
	min = MAX(min, (int)conf->auto_minheight);
	/* avoid terminal overflow */
	min = MIN(min, widget_max_height(conf));

	return (min);
}

int
widget_min_width(struct bsddialog_conf *conf, int wtext, int minwidget,
    struct buttons *bs)

{
	int min, delimtitle;

	min = 0;

	/* buttons */
	if (bs != NULL) {
		min += bs->nbuttons * bs->sizebutton;
		min += bs->nbuttons > 0 ? (bs->nbuttons-1) * t.button.space : 0;
	}

	/* text */
	if (wtext > 0)
		min = MAX(min, wtext + TEXTHMARGINS);

	/* specific widget min width */
	min = MAX(min, minwidget);

	/* title */
	if (conf->title != NULL) {
		delimtitle = t.dialog.delimtitle ? 2 : 0;
		min = MAX(min, (int)strlen(conf->title) + 2 + delimtitle);
	}

	/* bottom title */
	if (conf->bottomtitle != NULL)
		min = MAX(min, (int)strlen(conf->bottomtitle) + 4);

	/* dialog borders */
	min += VBORDERS;
	/* conf.auto_minwidth */
	min = MAX(min, (int)conf->auto_minwidth);
	/* avoid terminal overflow */
	min = MIN(min, widget_max_width(conf));

	return (min);
}

int
set_widget_size(struct bsddialog_conf *conf, int rows, int cols, int *h, int *w)
{
	int maxheight, maxwidth;

	if ((maxheight = widget_max_height(conf)) == BSDDIALOG_ERROR)
		return (BSDDIALOG_ERROR);

	if (rows == BSDDIALOG_FULLSCREEN)
		*h = maxheight;
	else if (rows < BSDDIALOG_FULLSCREEN)
		RETURN_ERROR("Negative (less than -1) height");
	else if (rows > BSDDIALOG_AUTOSIZE) {
		if ((*h = rows) > maxheight)
			RETURN_ERROR("Height too big (> terminal height - "
			    "shadow)");
	}
	/* rows == AUTOSIZE: each widget has to set its size */

	if ((maxwidth = widget_max_width(conf)) == BSDDIALOG_ERROR)
		return (BSDDIALOG_ERROR);

	if (cols == BSDDIALOG_FULLSCREEN)
		*w = maxwidth;
	else if (cols < BSDDIALOG_FULLSCREEN)
		RETURN_ERROR("Negative (less than -1) width");
	else if (cols > BSDDIALOG_AUTOSIZE) {
		if ((*w = cols) > maxwidth)
			RETURN_ERROR("Width too big (> terminal width - "
			    "shadow)");
	}
	/* cols == AUTOSIZE: each widget has to set its size */

	return (0);
}

int
set_widget_position(struct bsddialog_conf *conf, int *y, int *x, int h, int w)
{
	if (conf->y == BSDDIALOG_CENTER)
		*y = SCREENLINES/2 - (h + t.shadow.h)/2;
	else if (conf->y < BSDDIALOG_CENTER)
		RETURN_ERROR("Negative begin y (less than -1)");
	else if (conf->y >= SCREENLINES)
		RETURN_ERROR("Begin Y under the terminal");
	else
		*y = conf->y;

	if ((*y + h + (conf->shadow ? (int) t.shadow.h : 0)) > SCREENLINES)
		RETURN_ERROR("The lower of the box under the terminal "
		    "(begin Y + height (+ shadow) > terminal lines)");


	if (conf->x == BSDDIALOG_CENTER)
		*x = SCREENCOLS/2 - (w + t.shadow.w)/2;
	else if (conf->x < BSDDIALOG_CENTER)
		RETURN_ERROR("Negative begin x (less than -1)");
	else if (conf->x >= SCREENCOLS)
		RETURN_ERROR("Begin X over the right of the terminal");
	else
		*x = conf->x;

	if ((*x + w + (conf->shadow ? (int) t.shadow.w : 0)) > SCREENCOLS)
		RETURN_ERROR("The right of the box over the terminal "
		    "(begin X + width (+ shadow) > terminal cols)");

	return (0);
}

/* Widgets builders */
void
draw_borders(struct bsddialog_conf *conf, WINDOW *win, int rows, int cols,
    enum elevation elev)
{
	int leftcolor, rightcolor;
	int ls, rs, ts, bs, tl, tr, bl, br, ltee, rtee;

	if (conf->no_lines)
		return;

	if (conf->ascii_lines) {
		ls = rs = '|';
		ts = bs = '-';
		tl = tr = bl = br = ltee = rtee = '+';
	} else {
		ls = rs = ACS_VLINE;
		ts = bs = ACS_HLINE;
		tl = ACS_ULCORNER;
		tr = ACS_URCORNER;
		bl = ACS_LLCORNER;
		br = ACS_LRCORNER;
		ltee = ACS_LTEE;
		rtee = ACS_RTEE;
	}

	leftcolor = elev == RAISED ?
	    t.dialog.lineraisecolor : t.dialog.linelowercolor;
	rightcolor = elev == RAISED ?
	    t.dialog.linelowercolor : t.dialog.lineraisecolor;
	wattron(win, leftcolor);
	wborder(win, ls, rs, ts, bs, tl, tr, bl, br);
	wattroff(win, leftcolor);

	wattron(win, rightcolor);
	mvwaddch(win, 0, cols-1, tr);
	mvwvline(win, 1, cols-1, rs, rows-2);
	mvwaddch(win, rows-1, cols-1, br);
	mvwhline(win, rows-1, 1, bs, cols-2);
	wattroff(win, rightcolor);
}

WINDOW *
new_boxed_window(struct bsddialog_conf *conf, int y, int x, int rows, int cols,
    enum elevation elev)
{
	WINDOW *win;

	if ((win = newwin(rows, cols, y, x)) == NULL) {
		set_error_string("Cannot build boxed window");
		return (NULL);
	}

	wbkgd(win, t.dialog.color);

	draw_borders(conf, win, rows, cols, elev);

	return (win);
}

static int
draw_dialog(struct bsddialog_conf *conf, WINDOW *shadow, WINDOW *widget,
    WINDOW *textpad, const char *text, struct buttons *bs, bool shortcutbuttons)
{
	int h, w, ts, ltee, rtee;

	ts = conf->ascii_lines ? '-' : ACS_HLINE;
	ltee = conf->ascii_lines ? '+' : ACS_LTEE;
	rtee = conf->ascii_lines ? '+' : ACS_RTEE;

	getmaxyx(widget, h, w);

	if (shadow != NULL)
		wnoutrefresh(shadow);

	draw_borders(conf, widget, h, w, RAISED);

	if (conf->title != NULL) {
		if (t.dialog.delimtitle && conf->no_lines == false) {
			wattron(widget, t.dialog.lineraisecolor);
			mvwaddch(widget, 0, w/2-strlen(conf->title)/2-1, rtee);
			wattroff(widget, t.dialog.lineraisecolor);
		}
		wattron(widget, t.dialog.titlecolor);
		mvwaddstr(widget, 0, w/2 - strlen(conf->title)/2, conf->title);
		wattroff(widget, t.dialog.titlecolor);
		if (t.dialog.delimtitle && conf->no_lines == false) {
			wattron(widget, t.dialog.lineraisecolor);
			waddch(widget, ltee);
			wattroff(widget, t.dialog.lineraisecolor);
		}
	}

	if (bs != NULL) {
		if (conf->no_lines == false) {
			wattron(widget, t.dialog.lineraisecolor);
			mvwaddch(widget, h-3, 0, ltee);
			mvwhline(widget, h-3, 1, ts, w-2);
			wattroff(widget, t.dialog.lineraisecolor);

			wattron(widget, t.dialog.linelowercolor);
			mvwaddch(widget, h-3, w-1, rtee);
			wattroff(widget, t.dialog.linelowercolor);
		}
		draw_buttons(widget, *bs, shortcutbuttons);
	}

	if (conf->bottomtitle != NULL) {
		wattron(widget, t.dialog.bottomtitlecolor);
		wmove(widget, h - 1, w/2 - strlen(conf->bottomtitle)/2 - 1);
		waddch(widget, ' ');
		waddstr(widget, conf->bottomtitle);
		waddch(widget, ' ');
		wattroff(widget, t.dialog.bottomtitlecolor);
	}

	wnoutrefresh(widget);

	if (textpad != NULL && text != NULL) /* textbox */
		if (print_textpad(conf, textpad, text) !=0)
			return (BSDDIALOG_ERROR);

	return (0);
}

int
update_dialog(struct bsddialog_conf *conf, WINDOW *shadow, WINDOW *widget,
    int y, int x, int h, int w, WINDOW *textpad, const char *text,
    struct buttons *bs, bool shortcutbuttons)
{
	int error;

	if (shadow != NULL) {
		wclear(shadow);
		mvwin(shadow, y + t.shadow.h, x + t.shadow.w);
		wresize(shadow, h, w);
	}

	wclear(widget);
	mvwin(widget, y, x);
	wresize(widget, h, w);

	if (textpad != NULL) {
		wclear(textpad);
		wresize(textpad, 1, w - HBORDERS - TEXTHMARGINS);
	}

	error = draw_dialog(conf, shadow, widget, textpad, text, bs,
	    shortcutbuttons);

	return (error);
}

int
new_dialog(struct bsddialog_conf *conf, WINDOW **shadow, WINDOW **widget, int y,
    int x, int h, int w, WINDOW **textpad, const char *text, struct buttons *bs,
    bool shortcutbuttons)
{
	int error;

	if (conf->shadow) {
		*shadow = newwin(h, w, y + t.shadow.h, x + t.shadow.w);
		if (*shadow == NULL)
			RETURN_ERROR("Cannot build shadow");
		wbkgd(*shadow, t.shadow.color);
	}

	if ((*widget = new_boxed_window(conf, y, x, h, w, RAISED)) == NULL) {
		if (conf->shadow)
			delwin(*shadow);
		return (BSDDIALOG_ERROR);
	}

	if (textpad != NULL && text != NULL) { /* textbox */
		*textpad = newpad(1, w - HBORDERS - TEXTHMARGINS);
		if (*textpad == NULL) {
			delwin(*widget);
			if (conf->shadow)
				delwin(*shadow);
			RETURN_ERROR("Cannot build the pad window for text");
		}
		wbkgd(*textpad, t.dialog.color);
	}

	error = draw_dialog(conf, *shadow, *widget,
	    textpad == NULL ? NULL : *textpad, text, bs, shortcutbuttons);

	return (error);
}

void
end_dialog(struct bsddialog_conf *conf, WINDOW *shadow, WINDOW *widget,
    WINDOW *textpad)
{
	int y, x, h, w;

	getbegyx(widget, y, x);
	getmaxyx(widget, h, w);

	if (conf->sleep > 0)
		sleep(conf->sleep);

	if (textpad != NULL)
		delwin(textpad);

	delwin(widget);

	if (conf->shadow)
		delwin(shadow);

	if (conf->clear)
		hide_widget(y, x, h, w, shadow != NULL);

	if (conf->get_height != NULL)
		*conf->get_height = h;
	if (conf->get_width != NULL)
		*conf->get_width = w;
}