[Users] Setting map layer radio button via JS

[Pierre Giraud]

node.getUI().checkbox.nextElementSibling.setValue(1);

could probably be replaced by

Ext.get(node.attributes.radio).setValue(1);

Other than that, your solution is fine.

On Fri, Dec 10, 2010 at 3:04 PM, David E. Reksten <der at dod.no> wrote:

> Nice! Thanks a lot for your answer.
>
> I was also able to accomplish the same with this hack:
>
> function setLayerRadioButton(layerID) {
>    selNodes = treePanel.getChecked();
>    Ext.each(selNodes, function(node){
>        if (node.layer.id == layerID) {
>            node.getUI().checkbox.nextElementSibling.setValue(1);
>            // trigger the 'radiochange' event manually here...
>        }
>    });
>
> };
>
> Regards,
> David
>
> 2010/12/10 Pierre Giraud <pierre.giraud at camptocamp.com>:
> > Hi,
> >
> > I've just tried and I've succeeded in using the following piece of code :
> >
> > var node = treePanel.root.findChild('layer', newVectorLayer, true);
> > Ext.get(node.attributes.radio).set({
> >     'checked': 'checked'
> > });
> >
> > This won't fire the 'radiochange' event though. However, I think you can
> > execute the 'set active layer' code on your own at the same time.
> >
> > Please also consider using the new "GeoExt.plugins.TreeNodeRadioButton"
> > instead of the mixin. You may need a recent version of GeoExt though.
> >
> > Regards,
> > Pierre
> >
> > On Thu, Dec 9, 2010 at 10:39 AM, David E. Reksten <der at dod.no> wrote:
> >>
> >> I have layer tree in my application with both checkboxes (visibility)
> >> and radiobuttons ("active layer").
> >>
> >> Users may add new vector layers via a button, but for the moment they
> >> must always manually click the radio button after adding the layer to
> >> activate it. I would have preferred that a new layer was automatically
> >> checked, but I am unable to find out how to do it. Ideally, I would
> >> like to set the radio button at the same time as after having added
> >> the new layer to the map. I have googled extensively, but I suspect
> >> that I am using the wrong terminology here, as I have been unable to
> >> find out how to achieve this. Any hints would be very much
> >> appreciated!
> >>
> >> My tree panel is defined like this:
> >>
> >>    treeConfig = [{
> >>        nodeType: "gx_baselayercontainer",
> >>        text: "Base layers",
> >>        expanded: true
> >>    }, {
> >>        nodeType: "gx_overlaylayercontainer",
> >>        text: "My overlays",
> >>        expanded: true,
> >>        loader: {
> >>            baseAttrs: {
> >>                radioGroup: "foo",
> >>                uiProvider: "use_radio"
> >>            }
> >>        }
> >>    }];
> >>
> >>    treePanel = new Ext.tree.TreePanel({
> >>        id: 'mainpanel',
> >>        border: true,
> >>        region: "west",
> >>        title: "My layers",
> >>        width: 200,
> >>        split: true,
> >>        collapsible: true,
> >>        margins: '0 0 5 5',
> >>        collapseMode: "mini",
> >>        autoScroll: true,
> >>        loader: new Ext.tree.TreeLoader({
> >>            // applyLoader has to be set to false to not interfere with
> >> loaders
> >>            // of nodes further down the tree hierarchy
> >>            applyLoader: false,
> >>            uiProviders: {
> >>                "use_radio": Ext.extend(GeoExt.tree.LayerNodeUI, new
> >> GeoExt.tree.RadioButtonMixin());
> >>            }
> >>        }),
> >>        root: {
> >>            nodeType: "async",
> >>            children: treeConfig
> >>        },
> >>        listeners: {
> >>            "radiochange": function(node){
> >>                // toggle active layer
> >>            }
> >>        },
> >>        rootVisible: false,
> >>        lines: false
> >>    });
> >>
> >> After the user has clicked the button to add a layer:
> >>    // ... newVectorLayer is defined here ...
> >>    map.addLayer(newVectorLayer);
> >>    // would now like to activate the radio button in the TreePanel
> >> for "newVectorLayer", so that the "radiochange" event is triggered:
> >> but how?
> >>
> >>
> >> Regards,
> >> David
> >> _______________________________________________
> >> Users mailing list
> >> Users at geoext.org
> >> http://www.geoext.org/cgi-bin/mailman/listinfo/users
> >
> >
> >
> > --
> > Pierre GIRAUD
> > Géomaticien, Analyste
> >
> > Camptocamp France SAS
> > Savoie Technolac, BP 352
> > 73377 Le Bourget du Lac, Cedex
> >
> > Tel : 00 33 4 79 44 44 93
> > Mail : pierre.giraud at camptocamp.com
> > http://www.camptocamp.com
> >
>



-- 
Pierre GIRAUD
Géomaticien, Analyste

Camptocamp France SAS
Savoie Technolac, BP 352
73377 Le Bourget du Lac, Cedex

Tel : 00 33 4 79 44 44 93
Mail : pierre.giraud at camptocamp.com
http://www.camptocamp.com
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