Add some feature for the WidgetTreebox

[anthony.liot]

Hi,

 

We are working with the treebox widget and some addons will be interesting : 

 

-> The possibility hides an item without removed it.

 

-> The possibility to add un/selectable propriety on a item.

 

-> Add Pressed Event on an item.

 

-> Add Clicked Event on an item. 

 

Thanks

 

 

 

[frustum]

1. The current method WidgetTreeBox::setItemHidden() will be renamed into setItemFolded(). The old setItemHidden() method will hide item without removal.

 

2. setItemSelectable() method will be added into the WidgetListBox and WidgetTreeBox widgets

 

3, 4. Pressed and Clicked callbacks will be added into the WidgetListBox and WidgetTreeBox widgets.

[anthony.liot]

Thank you, that will help a lot  :D