From 3ce73cc9a7e6f98454f52d3a746a731094a44ae9 Mon Sep 17 00:00:00 2001
From: lukefromdc <lukefromdc@hushmail.com>
Date: Thu, 10 Mar 2016 17:36:46 -0500
Subject: gtk3.20-fix custom BG change on applets

New file panel-plug.c used intact from
github.com/GNOME/gnome-panel/commit/3115f77b536a7c79c7d43ded0591e2b8f45219c4 "restore custom background on applets)
Used only in gtk 3.20 builds, though not sure if whole file built but not used when it's header file is not included in anything due to build time
conditionals.
---
 libmate-panel-applet/panel-plug.c | 100 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 libmate-panel-applet/panel-plug.c

diff --git a/libmate-panel-applet/panel-plug.c b/libmate-panel-applet/panel-plug.c
new file mode 100644
index 00000000..549e98f9
--- /dev/null
+++ b/libmate-panel-applet/panel-plug.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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/>.
+ */
+
+#include "config.h"
+
+#include "panel-plug-private.h"
+
+struct _PanelPlug
+{
+  GtkPlug parent;
+};
+
+G_DEFINE_TYPE (PanelPlug, panel_plug, GTK_TYPE_PLUG)
+
+static gboolean
+panel_plug_draw (GtkWidget *widget,
+                 cairo_t   *cr)
+{
+  GdkWindow *window;
+  cairo_pattern_t *pattern;
+
+  if (!gtk_widget_get_realized (widget))
+    return GTK_WIDGET_CLASS (panel_plug_parent_class)->draw (widget, cr);
+
+  window = gtk_widget_get_window (widget);
+  pattern = gdk_window_get_background_pattern (window);
+
+  if (!pattern)
+    {
+      GtkStyleContext *context;
+      gint width;
+      gint height;
+
+      context = gtk_widget_get_style_context (widget);
+      width = gtk_widget_get_allocated_width (widget);
+      height = gtk_widget_get_allocated_height (widget);
+
+      gtk_render_background (context, cr, 0, 0, width, height);
+    }
+
+  return GTK_WIDGET_CLASS (panel_plug_parent_class)->draw (widget, cr);
+}
+
+static void
+panel_plug_realize (GtkWidget *widget)
+{
+  GdkScreen *screen;
+  GdkVisual *visual;
+
+  screen = gdk_screen_get_default ();
+  visual = gdk_screen_get_rgba_visual (screen);
+
+  if (!visual)
+    visual = gdk_screen_get_system_visual (screen);
+
+  gtk_widget_set_visual (widget, visual);
+
+  GTK_WIDGET_CLASS (panel_plug_parent_class)->realize (widget);
+}
+
+static void
+panel_plug_class_init (PanelPlugClass *plug_class)
+{
+  GtkWidgetClass *widget_class;
+
+  widget_class = GTK_WIDGET_CLASS (plug_class);
+
+  widget_class->draw = panel_plug_draw;
+  widget_class->realize = panel_plug_realize;
+
+#if GTK_CHECK_VERSION (3, 19, 0)
+	gtk_widget_class_set_css_name (widget_class, "PanelApplet");
+#endif
+}
+
+static void
+panel_plug_init (PanelPlug *plug)
+{
+  gtk_widget_set_app_paintable (GTK_WIDGET (plug), TRUE);
+}
+
+GtkWidget *
+panel_plug_new (void)
+{
+  return g_object_new (PANEL_TYPE_PLUG, NULL);
+}
-- 
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