http://www.axelscript.com/2008/03/26/creating-a-dragimage-from-your-uicomponent/
This is a blog post a friend of mine wrote about this. Specifically you want
this method:
public function getUIComponentBitmapData( target : UIComponent ) : BitmapData
{
var bd:BitmapData = new BitmapData( target.width, target.height
);
var m:Matrix = new Matrix();
bd.draw( target, m );
return bd;
}
This gets bitmap data for whatever UIComponent you may be using for the
renderer. Then, here’s his function to initiate dragging:
private function doDrag(e:MouseEvent):void
{
//create an aliase for easier coding for the uicomponent
var target:UIComponent = e.currentTarget as UIComponent;
//http://www.actionscript.org/forums/showthread.php3?t=152558
var lvImageClone:Image = new Image();
lvImageClone.source = new
Bitmap(getUIComponentBitmapData(target));
var lvDragSource:DragSource = new DragSource();
lvDragSource.addData( target, "items" );
// Call the DragManager doDrag() method to start the drag.
DragManager.doDrag(target, lvDragSource, e, lvImageClone, 0, 0,
dragImageAlpha);
}
What is important here is the last line. DragManager.doDrag takes the alpha as
a parameter so you can have a fully transparent background. You’ll have to add
the border yourself.
Jake Churchill
CF Webtools
11204 Davenport, Ste. 100
Omaha, NE 68154
<http://www.cfwebtools.com> http://www.cfwebtools.com
402-408-3733 x103
From: [email protected] [mailto:[email protected]] On Behalf
Of thomas parquier
Sent: Monday, May 25, 2009 5:18 PM
To: [email protected]
Subject: [flexcoders] dnd list items
Hi,
I'm using a list and custom items can be dnd'd. But the proxy has a white
background with a grey border (which the itemrenderer doesnt have), and the
whole proxy is a bit transparent. How to get a completely transparent
background and no border ?
thomas
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