[Users] Tree Layer question...

[Andreas Hocevar]

Paul james wrote:
> Hi Andreas...
>
> In my case I need :
>  - Possibility to create a custom treeview (like model in mapfish)

Is already possible (using just an Ext.TreePanel configuration, with
GeoExt node types).

>  - Supporting sublayer (Layer.Mapserver), like Mapfish does

Will be possible, by managing anything that is expressed as URL param
with LayerParamsNode and LayerParamsLoader.

>  - Possibility to add a Radio button in some nodes (with Checkbox)

Is already possible, see the tree.html example.

>  - Possibility to takeoff all icons (mapfish stay with a ugly white
> space when I dont use a icon)

Is already possible, with the following css:
.x-tree-node-icon {
    width: 0px;
}

Regards,
Andreas.

>
> Thanks
>
> Paul
>
> On Fri, Jul 17, 2009 at 6:02 AM, Andreas Hocevar <ahocevar at opengeo.org
> <mailto:ahocevar at opengeo.org>> wrote:
>
>     Hey Paul,
>
>     sorry for the delayed reply. The difference between the layer tree
>     approach in Mapfish and GeoExt is that the former uses a model on
>     the tree level for custom trees, and the latter lets you use the a
>     plain Ext configuration for the tree, because you have a choice of
>     different node types for representing layers.
>
>     The layer tree that you see in
>     http://demo.mapfish.org/mapfishsample/1.1/examples/tree/tree_automatic.html
>     will be possible in GeoExt, with this configuration:
>
>     var tree = new Ext.tree.TreePanel({
>       root: new GeoExt.tree.LayerContainer({
>           defaults: {
>               loader: new GeoExt.tree.LayerParamsLoader({
>                   param: "LAYERS"
>               })
>           }
>       }),
>       ...
>     });
>
>     This does not work yet, but as Eric said, there is work going on
>     to make it happen. We are currently switching to loaders, like
>     Ext.tree.TreeLoader, for populating LayerContainers (ticket #122).
>     The next steps will be:
>
>     * Resurrect the LayerParamsNode (known from a previous patch for
>     #22). This can do more than just change the layers param on WMS
>     layers. It can also be used e.g. to use CQL_FILTER and any
>     arbitrary params that OpenLayers layers take in the params object.
>
>     * Create a loader that looks up a params name (e.g. LAYERS) as
>     argument and will create one subnode for every param it finds. To
>     make this even smarter, the loader could process additional
>     information from the LayerStore, e.g. titles for the node texts.
>
>     Please give feedback if this makes sense for your use case.
>
>     Regards,
>     Andreas.
>
>     james wrote:
>
>         Thank guys...
>         And how about a "custom" treeview ? Like 'model' in mapfish...
>
>         Paul
>
>         On Mon, Jul 13, 2009 at 12:56 PM, Eric Lemoine
>         <eric.lemoine at camptocamp.com
>         <mailto:eric.lemoine at camptocamp.com>
>         <mailto:eric.lemoine at camptocamp.com
>         <mailto:eric.lemoine at camptocamp.com>>> wrote:
>
>            On Monday, July 13, 2009, Paul james <pauljame at gmail.com
>         <mailto:pauljame at gmail.com>
>            <mailto:pauljame at gmail.com <mailto:pauljame at gmail.com>>> wrote:
>            > Hello Guys...
>            >
>            > Using Mapfish with Mapserver layer, my treeview can turn
>         on/off
>            layers individually...
>            > Example :
>          
>          http://demo.mapfish.org/mapfishsample/1.1/examples/tree/tree_automatic.html
>            > Example, I can turn parkings and summits, but just 1 layer is
>            generated with both...
>            >
>            > Is it posible to do that using only GeoExt?
>
>            turning on and off sublayers (i.e. layers in a Layer.WMS
>         instance)
>            isn't supported by GeoExt.tree at that time. But some work
>         has been
>            started... Maybe Andreas can say more about this work.
>
>            Cheers,
>
>            >
>            > Paul
>            >
>            >
>
>            --
>            Eric Lemoine
>
>            Camptocamp France SAS
>            Savoie Technolac, BP 352
>            73377 Le Bourget du Lac, Cedex
>
>            Tel : 00 33 4 79 44 44 96
>            Mail : eric.lemoine at camptocamp.com
>         <mailto:eric.lemoine at camptocamp.com>
>            <mailto:eric.lemoine at camptocamp.com
>         <mailto:eric.lemoine at camptocamp.com>>
>            http://www.camptocamp.com
>
>
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>
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>
>
>     -- 
>     Andreas Hocevar
>     OpenGeo - http://opengeo.org/
>     Expert service straight from the developers.
>
>


-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.