[chronojump] New method PixbufFromVBox (used on RaceAnalyzer)

[Xavier de Blas <xaviblas src gnome org>]

commit 93a3a1184a126029c76b7640e9b08281238d5141
Author: Xavier de Blas <xaviblas gmail com>
Date:   Fri Feb 11 12:51:13 2022 +0100

    New method PixbufFromVBox (used on RaceAnalyzer)

 src/utilGtk.cs | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/src/utilGtk.cs b/src/utilGtk.cs
index 58a5cc58e..48b9c6350 100644
--- a/src/utilGtk.cs
+++ b/src/utilGtk.cs
@@ -898,6 +898,13 @@ public class UtilGtk
                return w.Allocation.Height;
        }
 
+       public static Gdk.Pixbuf PixbufFromVBox (Gtk.VBox vbox)
+       {
+               return Gdk.Pixbuf.FromDrawable(vbox.GdkWindow, Gdk.Colormap.System,
+                               vbox.Allocation.X, vbox.Allocation.Y, 0, 0,
+                               WidgetWidth(vbox), WidgetHeight(vbox));
+       }
+
        public static void IconWindow(Gtk.Window myWindow) {
                Gdk.Pixbuf chronojumpIcon = new Gdk.Pixbuf (null, Constants.FileNameIcon);
                myWindow.Icon = chronojumpIcon;