sounds good.
it could be that we should put this in wicket-contrib until 1.1 so we can tweak it before people depend on it like a core component. there's so much going on in core (and life outside wicket!) that i'm afraid we won't give tree the review and refinement it deserves.
jon
Eelco Hillenius wrote:
I was not that happy with the Swing dependency either, but the classes I use of Swing are so powerfull that I wouln't do without them as it would definitively mean less functionallity. I have looked at trees of other web frameworks as well, but they're really not that powerfull IMO.
What I think is absolutely great about the Swing tree, is that the model and view (tree state) are nicely seperated. This way, you can re-use your whole tree model for all clients, and use a tree state per client. I've used this in many projects, and allways thought it's one of the best pieces of Swing.
If people want to propose/ build Wicket specific replacements, that's fine. But I've put so much effort into it right now, that I want to give it a rest.
Eelco
Jonathan Locke wrote:
sounds cool.
i'm not sure i like the swing dependency though because it raises questions about why other components don't depend on swing and creates a kind of slippery slope... better to roughly modify/move that interface into our namespace i think.
Eelco Hillenius wrote:
Hi all,
I am done with the tree component(s). I can think of extensions, but I think it is really easy to use and quite extensible right now.
In the wicket.markup.html.tree package, there is one abstract class for trees, and two specializations of it. The two trees have a different rendering strategy, which have their own pros and cons.
One (wicket.markup.html.tree.Tree) renders nested <ul> and <li> tags, e.g.:
<ul id="nested">
<li id="row">
<span id="label">foo</span>
</li>
<ul id="nested">
<li id="row">
<span id="label">bar</span>
</li>
</ul>
<li id="row">
<span id="label">suck</span>
</li>
</ul>
The other (wicket.markup.html.tree.FlatTree) renderes single rows with spacer components, e.g.:
<span id="spacers"></span><span id=" spacers"></span><span id ="node"><span id="label">foo</span></span>
<span id="spacers"></span><span id ="node"><span id="label">bar</span></span>
Like I said, both have pros and cons, that's why I wanted to have both.
Currently you need to feed trees Swing's TreeModels with DefaultMutableTreeNodes. I might (or someone else) add support for nested lists sometime, though they will then be just converted to tree models with tree nodes.
I took me a long time to develop them, partially because I was not happy with the first versions. I am happy with these now, so I hereby propse them for Wicket 1.0. Look at the filebrowser example for examples of the different trees.
Hope you have fun with them,
Eelco
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