Extending Builders: Layout Builders (original) (raw)
Tom Schindl tom.schindl at bestsolution.at
Thu Nov 29 12:31:48 PST 2012
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Am 29.11.12 20:32, schrieb Tom Eugelink:
On 2012-11-29 20:25, Tom Schindl wrote:
Am 29.11.12 19:42, schrieb Tom Eugelink: I think storing the constraint on the owner is not a good idea because you don't have an API for e.g. bulk-operations. The Layout#add(Node,Constraint) API should only be a convenience one for developers. Can you give an example of such bulk operations? Tom
box.getChildren().set(nodes); box.getChildren().addAll(nodes); box.getChildren().addAll(10, nodes);
For single adds I think the add on the node is fine for convenience but it hides a but what really happens (the add on the underlying list). I know many people are used to this because this allows them to send notifications in JavaBean world but this is not needed on JavaFX because all and everything can be observed (property/list).
Given Richards comments: a) performance is mportant b) Node already has layout-attributes so why not adding one more
The only thing that storing of the constraint on the node we can't cover is that it can have different constraints on different layout containers. I don't know how common this is but I'd say a user has to deal with this situation and reassign a layout data when he moves the node from container a to container b.
Tom
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