You bet! There are quite a few 'short hand' methods to do things... but
you'll want to be careful with how you use contructors/object casting inside
calls. If BitmapData were somehow to end up null. subsequent operations on a
null object leads to runtime errors. In this case BitmapAsset can take null
as an argument but will still return an 'empty' bitmap - so no big. Also -
while 'short hand' approaches appear 'smaller' the statements true meaning
(number of operations) will always be interpreted by the compiler and VM and
not by how many constructors you can nest in a single line. Here the real
savings is in minimizing object overhead. Image is derived from SWFLoader
and BitmapAsset is derived from Bitmap. BitmapAsset is 'slimmer.'
Rick Winscot
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Harald Dehn
Sent: Saturday, April 12, 2008 9:38 AM
To: flexcoders@yahoogroups.com
Subject: AW: [flexcoders] drag and drop a button?
Hi Winscot,
I found an alternative way to get a proxy image for the DragManager
// FANCY:
// ---
// Add a proxy image here for drag manager to use if you
would like!
var proxy:UIComponent = UIComponent( event.currentTarget );
// Copy the contents of the control (a la bitmap data)
var bitmapData:BitmapData = new BitmapData( proxy.width,
proxy.height );
bitmapData.draw( proxy );
// Let the drag manager take care of the rest - with a
visual indicator of what its dragging...
DragManager.doDrag( dragChild, dragSource, event, new
BitmapAsset(bitmapData) );
Harald
Von: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] Im
Auftrag von Rick Winscot
Gesendet: Samstag, 12. April 2008 03:05
An: flexcoders@yahoogroups.com
Betreff: RE: [flexcoders] drag and drop a button?
Take a look at this sample - BitmapData is used to create a proxy on the fly
of the object being dragged.
http://www.quilix.com/node/3
Rick Winscot
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of grimmwerks
Sent: Friday, April 11, 2008 10:23 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] drag and drop a button?
Is there a simple tutorial for it? I don't really want to have an
image proxy - I want to really drag a button somwhere else on the
canvas. Simple.
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