public DataSource CreateDataSourceForBaseMapType(BaseMapInfo baseMapInfo)
{
DataSource dataSource = CreateDataSourceForBaseMapType(baseMapInfo.BaseMapType);
if (baseMapInfo.BaseMapType == BaseMapType.ArcGISServer)
((ArcGISServerDataSource)dataSource).ProxyUrl = baseMapInfo.ProxyUrl;
return dataSource;
}
public override Client.TiledMapServiceLayer CreateBaseMapLayer(BaseMapInfo baseMapInfo)
{
ArcGISTiledMapServiceLayer agsLayer = new ArcGISTiledMapServiceLayer() { Url = baseMapInfo.Url };
// Apply proxy if necessary
if (baseMapInfo.UseProxy)
{
agsLayer.ProxyURL = ProxyUrl;
LayerExtensions.SetUsesProxy(agsLayer, true);
}
return agsLayer;
}
public override void SwitchBaseMapLayer(Client.Layer oldLayer, BaseMapInfo newBaseMapInfo)
{
Client.ArcGISTiledMapServiceLayer tiledLayer = oldLayer as Client.ArcGISTiledMapServiceLayer;
if (tiledLayer != null)
{
// Apply proxy if one is in use or clear it if not
if (newBaseMapInfo.UseProxy)
{
tiledLayer.ProxyURL = ProxyUrl;
LayerExtensions.SetUsesProxy(tiledLayer, true);
}
else
{
tiledLayer.ProxyURL = null;
LayerExtensions.SetUsesProxy(tiledLayer, false);
}
tiledLayer.Url = newBaseMapInfo.Url;
tiledLayer.SetValue(ESRI.ArcGIS.Client.Extensibility.MapApplication.LayerNameProperty, newBaseMapInfo.DisplayName);
}
}
private void reCreateBaseMapLayer(BaseMapInfo targetBaseMapInfo, Envelope newMapExtent)
{
IBaseMapDataSource dataSource = DataSourceProvider.CreateDataSourceForBaseMapType(targetBaseMapInfo) as IBaseMapDataSource;
if (dataSource == null)
throw new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionUnableToRetrieveDatasource, targetBaseMapInfo.BaseMapType.ToString()));
List<Layer> oldBaseMapLayers = new List<Layer>();
foreach (Layer layer in Map.Layers)
{
if ((bool)layer.GetValue(ESRI.ArcGIS.Client.WebMap.Document.IsBaseMapProperty))
oldBaseMapLayers.Add(layer);
}
if (oldBaseMapLayers.Count == 1 && dataSource.CanSwitchBaseMapLayer(oldBaseMapLayers[0]))
{
dataSource.SwitchBaseMapLayer(oldBaseMapLayers[0], targetBaseMapInfo);
OnBaseMapChangeComplete(EventArgs.Empty);
}
else
{
TiledMapServiceLayer layer = dataSource.CreateBaseMapLayer(targetBaseMapInfo);
layer.SetValue(ESRI.ArcGIS.Client.WebMap.Document.IsBaseMapProperty, true);
layer.SetValue(ESRI.ArcGIS.Client.Extensibility.MapApplication.LayerNameProperty, targetBaseMapInfo.DisplayName);
checkAndEnsureBingMapsTokenIfRequired(layer);
// Save current selected layer
Layer currentSelectedLayer = SelectedLayer;
saveGraphicsInViewForSelectedLayerInAttributeDisplay();
// Disable listening for layer changed events because we are re-adding layers to the collection. The initialization events are not fired nor is symbology changed
Map.Layers.CollectionChanged -= Layers_CollectionChanged;
switchBaseMapLayer(layer, newMapExtent, oldBaseMapLayers);
// Re-Enable listening for layer changed events
Map.Layers.CollectionChanged += Layers_CollectionChanged;
if (Map.Layers.Count > 1 && Map.Layers.Contains(currentSelectedLayer))
{
// Restore current selected layer
SelectedLayer = currentSelectedLayer;
}
else
{
SelectedLayer = layer;
}
restoreGraphicsInViewForSelectedLayerInAttributeDisplay();
OnNewMapCreated(new MapRecreatedEventArgs() { NewMap = Map });
OnBaseMapChangeComplete(EventArgs.Empty);
}
}
private void CreateNewBaseMapWithSpatialReference(Envelope targetInitialExtent, Envelope targetFullExtent, BaseMapInfo baseMapInfo, SpatialReference targetServiceSpatialReference)
{
// Reproject oldMap's extent before comparison
GeometryServiceOperationHelper geomHelper = new GeometryServiceOperationHelper(
new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStore),
baseMapInfo.UseProxy ? baseMapInfo.ProxyUrl : null);
geomHelper.GeometryServiceOperationFailed += (o, args) =>
{
Logger.Instance.LogError(args.Exception);
MessageBoxDialog.Show(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.MsgUnableToAccessGeometryService + Environment.NewLine + args.Exception != null ? args.Exception.Message : ESRI.ArcGIS.Mapping.Controls.Resources.Strings.MsgUnknownError);
};
geomHelper.ProjectExtentCompleted += (o, args) =>
{
Envelope targetExtent = null;
// If the extents (compared in same projection) interesect, set the extent of the new map to the projected extent
if (targetInitialExtent != null)
{
if (args.Extent.Intersects(targetInitialExtent))
{
if (isFullyContainedWithin(args.Extent, targetInitialExtent))
targetExtent = targetFullExtent; // if the full extent of the new service is fully within, automatically zoom to it
else
targetExtent = args.Extent;
}
else
targetExtent = targetInitialExtent;
}
else if (targetFullExtent != null)
{
if (args.Extent.Intersects(targetFullExtent))
{
if (isFullyContainedWithin(args.Extent, targetFullExtent))
targetExtent = targetFullExtent; // if the full extent of the new service is fully within, automatically zoom to it
else
targetExtent = args.Extent;
}
else
targetExtent = targetFullExtent;
}
// else don't set an extent
// the map will default to the full extent of the service
// Since map will not be in a different projection, we have to re-create the map
BaseMapInfo targetBaseMapInfo = baseMapInfo;
IBaseMapDataSource dataSoure = DataSourceProvider.CreateDataSourceForBaseMapType(targetBaseMapInfo.BaseMapType) as IBaseMapDataSource;
if (dataSoure == null)
throw new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionDatasourceNotLoadedForBaseMapType, targetBaseMapInfo.BaseMapType.ToString()));
TiledMapServiceLayer layer = dataSoure.CreateBaseMapLayer(targetBaseMapInfo);
layer.SetValue(ESRI.ArcGIS.Client.WebMap.Document.IsBaseMapProperty, true);
layer.SetValue(ESRI.ArcGIS.Client.Extensibility.MapApplication.LayerNameProperty, targetBaseMapInfo.DisplayName);
checkAndEnsureBingMapsTokenIfRequired(layer);
// Save current selected layer
Layer currentSelectedLayer = SelectedLayer;
saveGraphicsInViewForSelectedLayerInAttributeDisplay();
// Disable listening for layer changed events because we are re-adding layers to the collection. The initialization events are not fired nor is symbology changed
Map.Layers.CollectionChanged -= Layers_CollectionChanged;
List<Layer> oldBaseMapLayers = new List<Layer>();
foreach (Layer l in Map.Layers)
{
if ((bool)l.GetValue(ESRI.ArcGIS.Client.WebMap.Document.IsBaseMapProperty))
oldBaseMapLayers.Add(l);
}
switchBaseMapLayer(layer, targetExtent, oldBaseMapLayers);
// Re-Enable listening for layer changed events
Map.Layers.CollectionChanged += Layers_CollectionChanged;
// Restore current selected layer
SelectedLayer = currentSelectedLayer;
restoreGraphicsInViewForSelectedLayerInAttributeDisplay();
OnNewMapCreated(new MapRecreatedEventArgs() { NewMap = Map });
OnBaseMapChangeComplete(EventArgs.Empty);
};
geomHelper.ProjectExtent(Map.Extent, targetServiceSpatialReference);
}
private void createNewMapBasedOnTargetSpatialReferenceForBaseMapLayer(BaseMapInfo baseMapInfo, SpatialReference targetServiceSpatialReference,
Envelope targetInitialExtent, Envelope targetFullExtent)
{
if (Map.SpatialReference.Equals(targetServiceSpatialReference))
{
// Spatial references are equal -> extents are valid to compare
Envelope targetExtent = Map.Extent;
if (isFullyContainedWithin(targetExtent, targetFullExtent))
targetExtent = targetFullExtent; // if the full extent of the new service is fully within, automatically zoom to it
reCreateBaseMapLayer(baseMapInfo, targetExtent);
}
else if (targetServiceSpatialReference != null)
{
// Spatial reference mismatch
// Since cached services cannot re-project on the fly.
// Check if the application has any cached map services for operational data.
// If so, Ask the user if they wish to delete them before changing basemap
bool hasCachedMapServiceLayer = false;
for (int i = 1; i < Map.Layers.Count; i++) // we only care about operational data .. not basemap layer (index = 0
{
if (Map.Layers[i] is ArcGISTiledMapServiceLayer)
{
hasCachedMapServiceLayer = true;
break;
}
}
if (hasCachedMapServiceLayer)
{
MessageBoxDialog.Show(LocalizableStrings.OperationMapServicesLayersWillBeRemoved, LocalizableStrings.OperationMapServicesLayersWillBeRemovedCaption, MessageBoxButton.OKCancel,
new MessageBoxClosedEventHandler(delegate(object obj, MessageBoxClosedArgs args1)
{
if (args1.Result == MessageBoxResult.OK)
{
// Remove all cached map services
for (int i = Map.Layers.Count - 1; i > 0; i--)
{
ArcGISTiledMapServiceLayer tiledMapServiceLayer = Map.Layers[i] as ArcGISTiledMapServiceLayer;
if (tiledMapServiceLayer != null)
Map.Layers.Remove(tiledMapServiceLayer);
}
}
else
{
OnBaseMapChangeFailed(new ExceptionEventArgs(new Exception(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionCacheMapServicesCannotReproject), null));
return;
}
CreateNewBaseMapWithSpatialReference(targetInitialExtent, targetFullExtent, baseMapInfo, targetServiceSpatialReference);
}));
}
else
CreateNewBaseMapWithSpatialReference(targetInitialExtent, targetFullExtent, baseMapInfo, targetServiceSpatialReference);
}
else
{
reCreateBaseMapLayer(baseMapInfo, null);
}
}
public void ChangeBaseMap(BaseMapInfo baseMapInfo)
{
if (baseMapInfo.UseProxy)
baseMapInfo.ProxyUrl = ProxyUrl;
else
baseMapInfo.ProxyUrl = null;
if (baseMapInfo == null)
throw new ArgumentNullException("baseMapInfo");
IBaseMapDataSource dataSource = DataSourceProvider.CreateDataSourceForBaseMapType(baseMapInfo) as IBaseMapDataSource;
if (dataSource == null)
throw new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionUnableToInstantiateDatasourceForBaseMapType, baseMapInfo.BaseMapType.ToString()));
if (Map == null)
throw new Exception(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionMapHasNotBeenInitializedYet);
if (Map.SpatialReference == null)
throw new Exception(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionMapLayersHaveNotBeenInstantiated);
dataSource.GetMapServiceMetaDataCompleted += new EventHandler<GetMapServiceMetaDataCompletedEventArgs>(dataSourceInstance_GetMapServiceMetaDataComplete);
dataSource.GetMapServiceMetaDataFailed += (o, e) =>
{
MessageBoxDialog.Show(string.Format(Strings.ServiceConnectionError, baseMapInfo.Url),
Strings.ServiceConnectionErrorCaption, MessageType.Error, MessageBoxButton.OK, null, true);
OnBaseMapChangeFailed(e);
};
try
{
dataSource.GetMapServiceMetaDataAsync(baseMapInfo.Url, baseMapInfo);
}
catch (Exception ex) // One case where this will throw an exception is when a string that is not a URL is specified as the URL
{
MessageBoxDialog.Show(string.Format(Strings.ServiceConnectionError, baseMapInfo.Url),
Strings.ServiceConnectionErrorCaption, MessageType.Error, MessageBoxButton.OK, null, true);
OnBaseMapChangeFailed(new ExceptionEventArgs(ex, null));
}
}
private void onAddNewBaseMapCommand(object parameter)
{
if (BaseMaps == null || BaseMapsList == null)
return;
BaseMapInfo newBaseMap = null;
// Clone current selected base map
BaseMapInfo currentSelectedBaseMap = BaseMapsList.SelectedItem as BaseMapInfo;
if (currentSelectedBaseMap == null)
currentSelectedBaseMap = BaseMaps.FirstOrDefault();
if (currentSelectedBaseMap != null)
{
newBaseMap = new BaseMapInfo()
{
BaseMapType = currentSelectedBaseMap.BaseMapType,
DisplayName = ESRI.ArcGIS.Mapping.Controls.Resources.Strings.NewBasemap,
ThumbnailImage = currentSelectedBaseMap.ThumbnailImage,
BingMapsAppID = BingMapsAppID
};
if (currentSelectedBaseMap.BaseMapType == BaseMapType.BingMaps
|| currentSelectedBaseMap.BaseMapType == BaseMapType.OpenStreetMap)
{
// Keep same name (needed)
newBaseMap.Name = currentSelectedBaseMap.Name;
newBaseMap.Url = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer";
}
else
{
newBaseMap.Name = Guid.NewGuid().ToString("N"); // needs to be unique for AGS
newBaseMap.Url = currentSelectedBaseMap.Url;
}
}
else
{
newBaseMap = new BaseMapInfo()
{
BaseMapType = BaseMapType.ArcGISServer,
Name = Guid.NewGuid().ToString("N"), // needs to be unique for AGS
DisplayName = ESRI.ArcGIS.Mapping.Controls.Resources.Strings.NewBasemap,
ThumbnailImage = "Images/basemaps/agol_imagery.png",
Url = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer",
};
}
BaseMaps.Add(newBaseMap);
BaseMapsList.SelectedItem = newBaseMap;
}
public void LoadConfiguration(string configData)
{
if (string.IsNullOrEmpty(configData))
return;
try
{
XDocument xDoc = XDocument.Parse(configData);
ObservableCollection<BaseMapInfo> baseMaps = new ObservableCollection<BaseMapInfo>();
XElement rootNode = xDoc.Element("BaseMaps");
if (rootNode != null)
{
IEnumerable<XElement> baseMapNodes = from elem in rootNode.Elements("BaseMapInfo") select elem;
foreach (XElement baseMapNode in baseMapNodes)
{
BaseMapInfo baseMapInfo = new BaseMapInfo();
XElement DisplayName = baseMapNode.Element("DisplayName");
if (DisplayName != null)
baseMapInfo.DisplayName = DisplayName.Value;
XElement Name = baseMapNode.Element("Name");
if (Name != null)
baseMapInfo.Name = Name.Value;
XElement ThumbnailImage = baseMapNode.Element("ThumbnailImage");
if (ThumbnailImage != null)
baseMapInfo.ThumbnailImage = ThumbnailImage.Value;
XElement BaseMapType = baseMapNode.Element("BaseMapType");
if (BaseMapType != null)
{
BaseMapType outValue;
if (Enum.TryParse<BaseMapType>(BaseMapType.Value, out outValue))
baseMapInfo.BaseMapType = outValue;
}
XElement Url = baseMapNode.Element("Url");
if (Url != null)
baseMapInfo.Url = Url.Value;
baseMaps.Add(baseMapInfo);
// Get whether proxy is used
XElement UseProxy = baseMapNode.Element("UseProxy");
if (UseProxy != null)
{
bool useProxy;
bool.TryParse(UseProxy.Value, out useProxy);
baseMapInfo.UseProxy = useProxy;
}
}
BaseMaps = baseMaps;
}
}
catch { }
}
internal void SelectBaseMap(BaseMapInfo baseMap)
{
if (baseMap == null)
throw new ArgumentNullException("baseMap");
if (BaseMapsList != null)
BaseMapsList.SelectedItem = baseMap;
}
