/// <summary>
/// Creates the legend info from a layer info.
/// </summary>
/// <param name="layerInfo">The layer info.</param>
/// <returns></returns>
private static LayerLegendInfo CreateLegendInfo(WmsLayer.LayerInfo layerInfo)
{
List <LegendItemInfo> legendItemInfos = null;
// If there is a legend url, create a legend item with the image
if (!string.IsNullOrEmpty(layerInfo.LegendUrl))
{
legendItemInfos = new List <LegendItemInfo>
{
new LegendItemInfo
{
ImageSource = new BitmapImage(new Uri(layerInfo.LegendUrl))
}
};
}
return(new LayerLegendInfo
{
LayerDescription = layerInfo.Abstract,
LayerName = layerInfo.Title,
SubLayerID = layerInfo.SubLayerID,
LayerLegendInfos = CreateLegendInfos(layerInfo.ChildLayers),
MaximumScale = layerInfo.MaximumScale,
MinimumScale = layerInfo.MinimumScale,
LegendItemInfos = legendItemInfos
});
}
private void SetVisibleLayers(WmsLayer.LayerInfo layerInfo)
{
if (Layers == null)
{
return;
}
bool visible = false;
if (Layers.Contains(layerInfo.Name))
{
// the layer and all its children is visible
visible = true;
foreach (var child in Descendants(layerInfo.ChildLayers))
{
child.Visible = true;
}
}
else if (layerInfo.ChildLayers != null)
{
foreach (var child in layerInfo.ChildLayers)
{
SetVisibleLayers(child);
visible |= child.Visible; // if a child is visible, all ascendants must be visible
}
}
layerInfo.Visible = visible;
}
