/// <summary>
/// Callback when the datacontext of the control changes
/// </summary>
private void LiteMapsControl_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
_viewModel = DataContext as LiteMapsViewModel;
if (_viewModel != null)
{
SetBinding(IsExpandedProperty, new Binding(LiteNewUserMapViewModel.AddMapViewVisiblePropertyName)
{
Mode = BindingMode.TwoWay, Source = _viewModel.NewMapViewModel
});
}
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="messenger"></param>
public LiteNewUserMapViewModel(LiteMapsViewModel maps, Messenger messenger = null)
: base(messenger)
{
this.Maps = maps;
_addMapViewVisible = false;
MapDefinitionViewModel = new MapDefinitionComboBoxViewModel(messenger);
MapDefinitionViewModel.ServiceProviderGroupTypeProperties.AllowedGroupTypes = new ServiceProviderGroupType[] { ServiceProviderGroupType.Business, ServiceProviderGroupType.Analysis };
MapDefinitionViewModel.PropertyChanged += MapDefinitionViewModel_PropertyChanged;
// If there is a single Analysis, hide it (it will be the same name as the Analysis itself)
MapDefinitionViewModel.DatumProperties.HideWhenSingleDatumFor = (serviceProvider, serviceProviderGroupType) => serviceProviderGroupType == ServiceProviderGroupType.Analysis;
MapDefinitionViewModel.MapDefinitionsFilter = this.MapDefinitionFilter;
SetCurrentCultureLabels();
SetupCommands();
}
/// <summary>
/// Converts the storage model to a MapViewModel that can be used within Lite.
/// </summary>
/// <param name="messenger">The messenger the ViewModel should be connected to</param>
/// <returns>A LiteMapViewModel</returns>
public async Task <LiteMapViewModel> ToUserMapViewModel(LiteMapsViewModel maps, Messenger messenger, EpsgCoordinateSystemReferenceCollection epsgCoordinateSystems)
{
LiteMapViewModel result = null;
var layers = new List <MapLayerDefinition>();
try
{
foreach (var layer in this.Layers)
{
var layerDefinition = await layer.ToLayerDefinition();
if (layerDefinition != null)
{
layers.Add(layerDefinition);
}
}
if (layers.Count > 0)
{
Envelope defaultEnvelope = DefaultEnvelope != null?DefaultEnvelope.ToEnvelope() : null;
var universe = Universe.Default;
var mapDefinition = new MapDefinition(ExternalName, ExternalName, universe, defaultEnvelope);
foreach (var layer in layers)
{
mapDefinition.Layers.Add(layer);
}
result = new LiteMapViewModel(messenger, mapDefinition, true, epsgCoordinateSystems, World.Default);
}
}
catch
{
// Defend against issues upon serializing
}
return(result);
}
