Drag() public static method

public static Drag ( Gtk source, Gdk evt, Gtk dragWidget ) : void
source Gtk
evt Gdk
dragWidget Gtk
return void
 protected override void OnDragBegin(Gdk.DragContext ctx)
 {
     Gtk.Widget ob = CreateItemWidget();
     if (ob != null)
     {
         DND.Drag(this, ctx, ob);
     }
 }
Beispiel #2
0
        internal void BeginComponentDrag(ProjectBackend project, string desc, string className, ObjectWrapper wrapper, Gtk.Widget source, Gdk.DragContext ctx, ComponentDropCallback callback)
        {
            if (wrapper != null)
            {
                Stetic.Wrapper.ActionPaletteItem it = new Stetic.Wrapper.ActionPaletteItem(Gtk.UIManagerItemType.Menuitem, null, (Wrapper.Action)wrapper);
                DND.Drag(source, ctx, it);
            }
            else if (callback != null)
            {
                DND.Drag(source, ctx, delegate()
                {
                    callback();

                    // If the class name has an assembly name, remove it now
                    int i = className.IndexOf(',');
                    if (i != -1)
                    {
                        className = className.Substring(0, i);
                    }

                    ClassDescriptor cls = Registry.LookupClassByName(className);
                    if (cls != null)
                    {
                        return(cls.NewInstance(project) as Gtk.Widget);
                    }
                    else
                    {
                        // Class not found, show an error
                        string msg            = string.Format("The widget '{0}' could not be found.", className);
                        Gtk.MessageDialog dlg = new Gtk.MessageDialog(null, Gtk.DialogFlags.Modal, Gtk.MessageType.Error, Gtk.ButtonsType.Close, msg);
                        dlg.Run();
                        dlg.Destroy();
                        return(null);
                    }
                },
                         (desc != null && desc.Length > 0) ? desc : className
                         );
            }
            else
            {
                ClassDescriptor cls = Registry.LookupClassByName(className);
                DND.Drag(source, ctx, cls.NewInstance(project) as Gtk.Widget);
            }
        }