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/*
Widgets for the Midnight Commander
Copyright (C) 1994-2022
Free Software Foundation, Inc.
Authors:
Radek Doulik, 1994, 1995
Miguel de Icaza, 1994, 1995
Jakub Jelinek, 1995
Andrej Borsenkow, 1996
Norbert Warmuth, 1997
Andrew Borodin <aborodin@vmail.ru>, 2009-2022
This file is part of the Midnight Commander.
The Midnight Commander is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
The Midnight Commander is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file label.c
* \brief Source: WLabel widget
*/
#include <config.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/tty/color.h"
#include "lib/skin.h"
#include "lib/strutil.h"
#include "lib/widget.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/*** file scope functions ************************************************************************/
static cb_ret_t
label_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
{
WLabel *l = LABEL (w);
switch (msg)
{
case MSG_DRAW:
{
char *p = l->text;
int y = 0;
gboolean disabled;
align_crt_t align;
if (l->text == NULL)
return MSG_HANDLED;
disabled = widget_get_state (w, WST_DISABLED);
if (l->transparent)
tty_setcolor (disabled ? DISABLED_COLOR : DEFAULT_COLOR);
else
{
const int *colors;
colors = widget_get_colors (w);
tty_setcolor (disabled ? DISABLED_COLOR : colors[DLG_COLOR_NORMAL]);
}
align = (w->pos_flags & WPOS_CENTER_HORZ) != 0 ? J_CENTER_LEFT : J_LEFT;
while (TRUE)
{
char *q;
char c = '\0';
q = strchr (p, '\n');
if (q != NULL)
{
c = q[0];
q[0] = '\0';
}
widget_gotoyx (w, y, 0);
tty_print_string (str_fit_to_term (p, w->rect.cols, align));
if (q == NULL)
break;
q[0] = c;
p = q + 1;
y++;
}
return MSG_HANDLED;
}
case MSG_DESTROY:
g_free (l->text);
return MSG_HANDLED;
default:
return widget_default_callback (w, sender, msg, parm, data);
}
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
WLabel *
label_new (int y, int x, const char *text)
{
WRect r = { y, x, 1, 1 };
WLabel *l;
Widget *w;
if (text != NULL)
str_msg_term_size (text, &r.lines, &r.cols);
l = g_new (WLabel, 1);
w = WIDGET (l);
widget_init (w, &r, label_callback, NULL);
l->text = g_strdup (text);
l->auto_adjust_cols = TRUE;
l->transparent = FALSE;
return l;
}
/* --------------------------------------------------------------------------------------------- */
void
label_set_text (WLabel * label, const char *text)
{
Widget *w = WIDGET (label);
int newcols = w->rect.cols;
int newlines;
if (label->text != NULL && text != NULL && strcmp (label->text, text) == 0)
return; /* Flickering is not nice */
g_free (label->text);
if (text == NULL)
label->text = NULL;
else
{
label->text = g_strdup (text);
if (label->auto_adjust_cols)
{
str_msg_term_size (text, &newlines, &newcols);
w->rect.cols = MAX (newcols, w->rect.cols);
w->rect.lines = MAX (newlines, w->rect.lines);
}
}
widget_draw (w);
w->rect.cols = MIN (newcols, w->rect.cols);
}
/* --------------------------------------------------------------------------------------------- */
void
label_set_textv (WLabel * label, const char *format, ...)
{
va_list args;
char buf[BUF_1K]; /* FIXME: is it enough? */
va_start (args, format);
g_vsnprintf (buf, sizeof (buf), format, args);
va_end (args);
label_set_text (label, buf);
}
/* --------------------------------------------------------------------------------------------- */
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