[Users] Adding a Node After A Tree Has Been Created
IT Intern
itintern12 at gmail.com
Wed Nov 24 17:45:34 CET 2010
Hello GeoExt/ExtJS list,
I am just having trouble with one thing after another. I have a layer that
I create after my tree panel has been created ( I have my reasons, getting
the map's extent of the viewport returns null if I try to use getExtent()
before the viewport has been created and I need getExtent() as parameters to
create this new layer. So what I have done is created a layerNode that I
want to add to a container for this layer. However this node does not take
the form of a radio button, which I believe it should, nor does it match up
to serve functionality to toggle the layer on and off, instead it throws an
error in firebug:
this.node.getOwnerTree() is null
var checkedNodes = this.node.getOwnerTree().getChecked();
http://localhost:8080/geoserver/www/GeoExt/lib/GeoExt/widgets/tree/LayerNode.js
Line 84
//function to create the original child overlay container with radio buttons
function childContainerRadioButtons(text, layerStore, parent, iconCls){
parent.appendChild(new GeoExt.tree.OverlayLayerContainer({
text: text,
layerStore: layerStore,
expanded: true,
iconCls: iconCls, //If not specified, defaults to original image
loader:{
baseAttrs:{
checkedGroup: "foo"
}
}
}));
}//end childContainerRadioButtons
//TreePanel code
//Tree menu for layers
var layerTree = new Ext.tree.TreePanel({
overflow: 'visible', // For the Combo popup
region: "west",
title: "Map Layers",
root: layerRoot,
loader: new Ext.tree.TreeLoader({applyLoader: false}),
enableDD: true,
collapsible: true,
width: 300,
autoScroll: true,
expanded: false
});
//The node I want to add to that child overlay container
layerStore.loadData([vectorPano], true); //adding layer to the layerstore
of that container
var layerContainer = layerRoot.findChild('text', 'Photo Layers');
layerContainer.appendChild(new GeoExt.tree.LayerNode({
leaf: true,
text: 'Panoramio Photos',
layer: vectorPano,
layerStore: layerStore,
loader: {baseAttrs: {checkedGroup: "foo"}}, //This node is the
odd one out, rendering a checkbox while it siblings are radio buttons
checked: false
}));
I've been stuck for a while, any hints would be greatly appreciated. I
thought I'd be able to get it on my own if I had the other issues resolved
(asked recently) and I apologize for asking all the questions. I'm just
having a hard time :-/
Thanks in advance for your continuous kind help :)
elshae
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