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+/*
+ Widgets for the Midnight Commander
+
+ Copyright (C) 1994-2023
+ 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 ****************************************************************/
+
+/*** forward declarations (file scope functions) *************************************************/
+
+/*** 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);
+}
+
+/* --------------------------------------------------------------------------------------------- */