Hello,
I'm using the binding features on trees with delegate options in order to
manage specific models (PS: thanks Martin for your comment about the bug
2632 - I didn't catch directly how to use the delegate options (great
feature by the way :-) ).
I'm not sure if it is a bug - maybe I'm completely mistaken - but the
following code seems not work :
var tree = new qx.ui.tree.Tree();
tree.controller = new qx.data.controller.Tree(null,tree);
var model = qx.data.marshal.Json.createModel(datas); // datas = js object
var delegate =
{
createItem: function()
{
var treeItem = new qx.ui.tree.TreeFolder();
treeItem.setUserData('homepage',new qx.ui.basic.Image());
treeItem.addWidget(treeItem.getUserData('homepage'));
treeItem.addLabel("");
treeItem.addWidget(new qx.ui.core.Spacer(), {flex: 1});
treeItem.setUserData('public',new qx.ui.basic.Image());
treeItem.addWidget(treeItem.getUserData('public'));
treeItem.setUserData('in_menu',new qx.ui.basic.Image());
treeItem.addWidget(treeItem.getUserData('in_menu'));
treeItem.setUserData('translated',new qx.ui.basic.Image());
treeItem.addWidget(treeItem.getUserData('translated'));
treeItem.setOpen(true);
return treeItem;
},
configureItem: function(item)
{
item.getUserData('public').setWidth(80);
item.getUserData('in_menu').setWidth(70);
item.getUserData('translated').setWidth(40);
}
};
tree.controller.setDelegate(delegate);
tree.controller.setModel(model);
...
It throws an error at runtime because when _setConfigureItem() is called, it
is looking for the root of the tree but it of course doesn't exists yet at
the first step: the error is "this.getTarget().getRoot() is null".
I can manage it by adding a dummy root to my tree at init stage using the
createItem function but maybe it would be more intuitive to modify the
_setConfigureItem() function by setting the targeted treeItem as root of the
tree if it doesn't yet exists ?
Regards,
Benoît.
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