So I have tried to change the icon of each childNode after the expand event
like so -
'expand' : {fn: function(node) {
var count = (node.childNodes.length -1);
while (count >= 0)
{node.childNodes[count].setIcon("../images/minus.png");
count -=1;
}
}}
But this does not seem to work, anything else I can try?
________________________________
From: [email protected] [mailto:[email protected]] On Behalf Of
Andrew Stewart
Sent: November 22, 2010 3:51 PM
To: [email protected]
Subject: [Users] Question on using WMS GetLegendGraphic with a
GeoExt.tree.LayerNode
Is it possible to show a legend graphic which is returned from my WMS
GetLegendGraphic request next to each item on the LayerNode after it is
expanded? (or before.. Or whenever as long as it shows).
I declare my layernode like so -
//Trails layerList
layerList_Trails = new GeoExt.tree.LayerNode({
"layer": layer_Trails,
"isLeaf": false,
"checked": false,
"enableDD": true,
"cls": "rootnode",
"singleClickExpand": true,
"listeners": {
'checkchange' : function(node, checked)
{
// If a parent node is unchecked, uncheck all the children
if (node.getUI().isChecked()) {
node.expand();
}
if (!node.getUI().isChecked())
{
node.collapse();
}
}
},
"loader": {
"param": "LAYERS"
}
});
Which is added to my root -
layerRoot_Legend.appendChild(layerList_Trails);
And then my treepanel
var layerRoot_Legend = new Ext.tree.TreeNode({
enableDD: true,
text: "All Legend Items",
loaded: true,
expanded: true
});
var layerTree_Legend = new Ext.tree.TreePanel({
title: '',
root: layerRoot_Legend,
enableDD: true,
applyLoader: true,
rootVisible: false
});
Except previously when I declared my layers individually I had put an <img> tag
with the right layer next to each.. But now I am declaring them in groups like -
//Trails Group
var layer_Trails = new OpenLayers.Layer.WMS("<img
src='http://localhost/WebService/Request.aspx?request=GetLegendGraphic&version=1.1.1&format=image/png&layer=Asphalt'
alt=''/>Trails", "http://localhost/WebService/Request.aspx";,
{
layers: ['Onstreet_Bike_Route', 'Mountain_-_Stunt_Biking',
'Equestrian', 'Gravel_or_Shale', 'Asphalt'],
VERSION: "1.1.1",
transparent: true
},
{ isBaseLayer: false,
singleTile: true,
visibility: false,
buffer: 1,
ratio: 1
}
But this only puts the image on the actual group name and I need it to be
beside each legend entry when it is expanded. Is there a place somewhere I can
stick this image tag and either hard code the layer name or have it be returned
from the childNodes of the tree and get it to show this image beside each
childNode? Appreciate any assistance!
________________________________
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