freebsd-dev/contrib/bsddialog/lib/infobox.c
Alfonso S. Siciliano b319d93437
contrib/bsddialog: Import version 0.3
New features overview:
 * Unicode. User interface handles multi-column characters. API can
   handle char* like a multibyte character string. Internally wide
   characters are used for keyboard input, to adapt word wrapping and
   dynamic text auto-sizing for multi-column characters.
 * Forms refactoring. Complete rewrite deleting libformw dependency.
 * Theme. New utility options to save and load custom theme at run-time.
 * TUI navigation. Added keys to navigate input components. Changed
   default focus behavior of input dialogs to be LGPL-dialog-like; a new
   option can set the previous whiptail-like behavior.

See /usr/src/contrib/bsddialog/CHANGELOG '2022-08-29 Version 0.3'
for more detailed information.

Merge commit '2c9fd7655ba54e7239f528e1af9fe09662de9b03'
2022-09-03 16:41:44 +02:00

96 lines
2.9 KiB
C

/*-
* 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 <curses.h>
#include "bsddialog.h"
#include "lib_util.h"
static int
infobox_autosize(struct bsddialog_conf *conf, int rows, int cols, int *h,
int *w, const char *text)
{
int htext, wtext;
if (cols == BSDDIALOG_AUTOSIZE || rows == BSDDIALOG_AUTOSIZE) {
if (text_size(conf, rows, cols, text, NULL, 0, 1, &htext,
&wtext) != 0)
return (BSDDIALOG_ERROR);
}
if (cols == BSDDIALOG_AUTOSIZE)
*w = widget_min_width(conf, wtext, TEXTHMARGINS + 1, NULL);
if (rows == BSDDIALOG_AUTOSIZE)
*h = widget_min_height(conf, htext, 0, false);
return (0);
}
static int infobox_checksize(int rows, int cols)
{
if (cols < HBORDERS)
RETURN_ERROR("Few cols, infobox needs at least width 2");
if (rows < VBORDERS)
RETURN_ERROR("Infobox needs at least height 2");
return (0);
}
/* API */
int
bsddialog_infobox(struct bsddialog_conf *conf, const char *text, int rows,
int cols)
{
int y, x, h, w;
WINDOW *shadow, *widget, *textpad;
if (set_widget_size(conf, rows, cols, &h, &w) != 0)
return (BSDDIALOG_ERROR);
if (infobox_autosize(conf, rows, cols, &h, &w, text) != 0)
return (BSDDIALOG_ERROR);
if (infobox_checksize(h, w) != 0)
return (BSDDIALOG_ERROR);
if (set_widget_position(conf, &y, &x, h, w) != 0)
return (BSDDIALOG_ERROR);
if (new_dialog(conf, &shadow, &widget, y, x, h, w, &textpad, text,
NULL, false) != 0)
return (BSDDIALOG_ERROR);
pnoutrefresh(textpad, 0, 0, y+1, x+1+TEXTHMARGIN, y+h-2,
x+w-TEXTHMARGIN);
doupdate();
end_dialog(conf, shadow, widget, textpad);
return (BSDDIALOG_OK);
}