Hi Usman,

On 08/13/2014 02:16 AM, Usman Bhatti wrote:

Hi Offray,

As Doru mentioned, without a complete example it is difficult to reproduce and
analyze your problem.

My main issue is that I don't know how to share a complete example except by sharing this url:

http://smalltalkhub.com/#!/~Offray/Ubakye/

and advising to upload the code and run "UbakyeBrowser open". In file based frameworks I can point to a�� specific file which contains the model of my defined objects, but I don't know how to share my own defined objects/messages in Smalltalk except by this or by manually cutting and pasting to email (it should be a better way).

Anyway this is the part where I define a UbakyeNode:

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Object subclass: #UbakyeNode
�� �� �� �� instanceVariableNames: 'header headers key icon body children parent node'
�� �� �� �� classVariableNames: ''
�� �� �� �� category: 'Ubakye-Model'
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

and the children method is the one which uses a colection:


=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
UbakyeNode>>children
�� �� �� �� "Returns the receivers list of children"
�� �� �� ��
�� �� �� �� ^ children ifNil: [children := OrderedCollection new]
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

For the tree to get updated on node addition or removal, you need to use
GLMAnnouncingCollection to group your nodes. Hence, when you add a new node in
your announcing collection object, this code comes into effect:

updateOn: GLMItemAdded from: #yourself;

So, make sure you are using appropriate collection object.

I tried changing OrderedCollection in the children message by GLMAnnouncingCollection, but the header message started to fail. Can I pass my children collection to a GLMAnnouncingCollection just in the interface or need I to change the object definition for the UbakyeNode, and if this is the case, how can I access the header of a UbakyeNode stored in this kind of collection? I know is kind of dumb to ask without proper context, but I hope that the SmalltalkHub repository (or other method) can be used to share my own defined object to make better questions.

usman

Cheers,

Offray