1 files changed, 126 insertions, 0 deletions
diff --git a/lib/widget/background.c b/lib/widget/background.c
new file mode 100644
index 0000000..1965dee
--- /dev/null
+++ b/lib/widget/background.c
@@ -0,0 +1,126 @@
+/*
+   Widgets for the Midnight Commander
+
+   Copyright (C) 2020-2023
+   The Free Software Foundation, Inc.
+
+   Authors:
+   Andrew Borodin <aborodin@vmail.ru>, 2020-2022
+
+   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 background.c
+ *  \brief Source: WBackground widget (background area of dialog)
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include "lib/global.h"
+#include "lib/tty/tty.h"
+#include "lib/tty/color.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 const int *
+background_get_colors (const Widget * w)
+{
+    return &(CONST_BACKGROUND (w)->color);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+background_adjust (WBackground * b)
+{
+    Widget *w = WIDGET (b);
+
+    w->rect = WIDGET (w->owner)->rect;
+    w->pos_flags |= WPOS_KEEP_ALL;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+background_draw (const WBackground * b)
+{
+    const Widget *w = CONST_WIDGET (b);
+
+    tty_setcolor (b->color);
+    tty_fill_region (w->rect.y, w->rect.x, w->rect.lines, w->rect.cols, b->pattern);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+cb_ret_t
+background_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
+{
+    WBackground *b = BACKGROUND (w);
+
+    switch (msg)
+    {
+    case MSG_INIT:
+        background_adjust (b);
+        return MSG_HANDLED;
+
+    case MSG_DRAW:
+        background_draw (b);
+        return MSG_HANDLED;
+
+    default:
+        return widget_default_callback (w, sender, msg, parm, data);
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+WBackground *
+background_new (int y, int x, int lines, int cols, int color, unsigned char pattern,
+                widget_cb_fn callback)
+{
+    WRect r = { y, x, lines, cols };
+    WBackground *b;
+    Widget *w;
+
+    b = g_new (WBackground, 1);
+    w = WIDGET (b);
+    widget_init (w, &r, callback != NULL ? callback : background_callback, NULL);
+    w->get_colors = background_get_colors;
+
+    b->color = color;
+    b->pattern = pattern;
+
+    return b;
+}
+
+/* --------------------------------------------------------------------------------------------- */