Adding upstream version 3:4.8.29.upstream/3%4.8.29upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 197 insertions, 0 deletions

diff --git a/lib/widget/label.c b/lib/widget/label.c
new file mode 100644
index 0000000..97f82af
--- /dev/null
+++ b/lib/widget/label.c
@@ -0,0 +1,197 @@
+/*
+   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);
+}
+
+/* --------------------------------------------------------------------------------------------- */