Populating dropdownlist

Submitted by JokerMartini on Thu, 2011-05-26 11:29

I need to populate a dropdown list with all the scene cameras. Which that part is simple.
But the problem I'm coming across is if someone creates a camera after the dialog has been opened. What do you guys thing would be the best way to re-populate the dialog?

My first thought is a selection callback function.

Here is the base of the script so far.

(
	camArray = for i in cameras where superclassof i == Camera collect i.name
 
	rollout drop_roll "Drop Down List"
	(
		dropdownlist obj_dd "Objects :" offset:[0,-20] items:camArray
	)
	createDialog drop_roll
)
‹ Button state based on current renderer Creating a variable inside of a rollout ›

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JokerMartini's picture
Submitted by JokerMartini on Thu, 2011-05-26 15:14.

Alright

Thanks Anubis, I'll be sure to look into using this instead of the callback I was using before.

John Martini
Digital Artist
http://www.JokerMartini.com (new site)

Anubis's picture
Submitted by Anubis on Thu, 2011-05-26 14:16.

just a tip

Goin in that way (using the General Event Callback Mechanism)
you should add more callbacks:
#nodeCloned - to catch cloned objects too
#sceneNodeAdded - to catch merged objects

In the new NodeEventCallback (added in Max 2009)
you can do this with 1 callback,
and its more precise - catch even undo/redo operations.

-- shortly...
rollout foo "..."
(
	local callbackItem
	fn cbFn ev nd = ( ... )
 
	-- ...
 
	on foo open do (
		callbackItem = NodeEventCallback mouseUp:true \
		delay:1000 added:cbFn deleted:cbFn
	)
	on foo close do (
		callbackItem = undefined
		gc light:true
	)
)

my recent MAXScripts RSS (archive here)

JokerMartini's picture
Submitted by JokerMartini on Thu, 2011-05-26 12:09.

callback on node create

Not sure why this isn't working..
Once i get this working I'll add a nodeDeleted callback as well. 

(
	global drop_roll
 
	camArray = for i in cameras where superclassof i == Camera collect i.name
 
	rollout drop_roll "Drop Down List"
	(		
		dropdownlist obj_dd "Objects :" offset:[0,-20] items:camArray
 
		fn fnUpdateCamList =
		(
			print "cool"
			camArray = for i in cameras where superclassof i == Camera collect i.name
			drop_roll.obj_dd.items = camArray
		)
	)
 
	on drop_roll close do (callbacks.RemoveScripts #nodeCreated id:#camUpdate)
 
	on drop_roll open do
	(
		callbacks.addScript #nodeCreated "drop_roll.fnUpdateCamList()" id:#camUpdate
	)
 
	createDialog drop_roll
)

John Martini
Digital Artist
http://www.JokerMartini.com (new site)

JokerMartini's picture
Submitted by JokerMartini on Thu, 2011-05-26 12:11.

Got it. The rollout () were

Got it. The rollout () were wrong.

John Martini
Digital Artist
http://www.JokerMartini.com (new site)

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