private IList <CycloMediaLayer> GetCurrentLayers()
{
IList <CycloMediaLayer> result = new List <CycloMediaLayer>();
IMap map = ArcUtils.Map;
if (map != null)
{
// ReSharper disable UseIndexedProperty
var layers = map.get_Layers();
ILayer layer;
while ((layer = layers.Next()) != null)
{
CycloMediaLayer thisLayer = AllLayers.Aggregate <CycloMediaLayer, CycloMediaLayer>
(null, (current, checkLayer) => (checkLayer.Name == layer.Name) ? checkLayer : current);
if (thisLayer != null)
{
result.Add(thisLayer);
}
}
// ReSharper restore UseIndexedProperty
}
return(result);
}
// =========================================================================
// Event handlers
// =========================================================================
private void OnContentChanged()
{
foreach (var layer in AllLayers)
{
if (!Layers.Aggregate(false, (current, visLayer) => current || (visLayer == layer)))
{
layer.IsVisible = true;
layer.Visible = false;
}
}
CycloMediaLayer changedLayer = Layers.Aggregate <CycloMediaLayer, CycloMediaLayer>
(null, (current, layer) => (layer.IsVisible && (!layer.Visible)) ? layer : current);
CycloMediaLayer refreshLayer = null;
foreach (var layer in Layers)
{
bool visible = ((changedLayer == null) || (layer == changedLayer)) && layer.IsVisible;
refreshLayer = (layer.IsVisible != visible) ? layer : refreshLayer;
layer.IsVisible = visible;
layer.Visible = layer.IsVisible;
}
if (refreshLayer != null)
{
IMxDocument document = ArcUtils.MxDocument;
IActiveView activeView = ArcUtils.ActiveView;
if (document != null)
{
// ReSharper disable UseIndexedProperty
IContentsView contentView = document.get_ContentsView(0);
// ReSharper restore UseIndexedProperty
if (contentView != null)
{
contentView.Refresh(_groupLayer);
}
}
if (activeView != null)
{
activeView.Refresh();
}
}
}
public CycloMediaLayer AddLayer(string name)
{
CycloMediaLayer thisLayer = null;
if (!Layers.Aggregate(false, (current, cycloLayer) => (cycloLayer.Name == name) || current))
{
thisLayer = AllLayers.Aggregate <CycloMediaLayer, CycloMediaLayer>
(null, (current, checkLayer) => (checkLayer.Name == name) ? checkLayer : current);
if (thisLayer != null)
{
thisLayer.AddToLayers();
}
}
return(thisLayer);
}
public void RemoveLayer(string name)
{
CycloMediaLayer layer = Layers.Aggregate <CycloMediaLayer, CycloMediaLayer>
(null, (current, checkLayer) => (checkLayer.Name == name) ? checkLayer : current);
if (layer != null)
{
Layers.Remove(layer);
layer.Dispose();
IActiveView activeView = ArcUtils.ActiveView;
if (activeView != null)
{
activeView.ContentsChanged();
activeView.Refresh();
}
}
}
public string GetFeatureFromPoint(int x, int y, out CycloMediaLayer layer)
{
string result = string.Empty;
layer = null;
foreach (var layert in Layers)
{
if (string.IsNullOrEmpty(result))
{
if ((layert.IsVisible) && (!(layert is WfsLayer)))
{
layer = layert;
result = layer.GetFeatureFromPoint(x, y);
}
}
}
return(result);
}
public void Dispose()
{
int i = 0;
while (Layers.Count > i)
{
CycloMediaLayer layer = Layers[i];
layer.Dispose();
if (layer is WfsLayer)
{
Layers.Remove(layer);
}
else
{
i++;
}
}
IActiveView activeView = ArcUtils.ActiveView;
IMap map = ArcUtils.Map;
if ((activeView != null) && (map != null))
{
var layer = GroupLayer as ILayer;
if (layer != null)
{
map.DeleteLayer(layer);
}
activeView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
var avEvents = ArcUtils.ActiveViewEvents;
if (avEvents != null)
{
avEvents.ContentsChanged -= OnContentChanged;
}
}
