A quick poll: Has anyone ever implemented a custom skin for some of the more complex controls like ListView, TableView, TreeView, TextArea?
The problem I have with the Control/Skin architecture is that a Control, being a Node in the scene graph, cannot be a pure model (in the MVC sense) - it is inherently a view (in the MVC sense). What is the model of a check box? For me, a model of a check box is a boolean property; certainly not something that has boundsInParent or onZoomFinished properties. CheckBox is hardly a model. It is a view. Everything in the scene graph is inherently a view. There is this idea that the view aspect of a control is implemented by the skin. The control itself does not know what the skin looks like or even what skin class is used. So a ListView knows about its items, but it does not know about its scroll position. But users sometimes want to know the scroll position. Why should there be onScrollProperty, but not way to get the current scroll position? Why should there be TextArea.getBoundsInParent(), but not TextArea.getCaretBounds()? There is no good way to implement the latter methods using custom skins. The ListView or TextArea don't know anything about the skin, thus they don't know anything about the current scroll position or caret bounds. They cannot ask the skin, because there might be no skin yet, and even if there is, all they know about it is that it is an instance of Skin<?> - not much one can do with it (certainly not get caret bounds). I'm leaning more and more towards not supporting custom skins at all. The whole idea of overriding skins via CSS looks to me like dependency injection via CSS, except without any possibility to constrain the type of what can be injected. I would like to know the community opinion on this. Even hear your success story how skins are awesome, if there is such. Regards, Tomas
