public void TestMapDefinitionNestedGroupDelete()
{
var conn = new Mock <IServerConnection>();
var caps = new Mock <IConnectionCapabilities>();
foreach (var rt in Enum.GetValues(typeof(ResourceTypes)))
{
caps.Setup(c => c.GetMaxSupportedResourceVersion(rt.ToString())).Returns(new Version(1, 0, 0));
}
conn.Setup(c => c.Capabilities).Returns(caps.Object);
IMapDefinition mdf = Utility.CreateMapDefinition(conn.Object, "Test");
/*
*
* [G] Group1
* [L] Layer1
* [G] Group2
* [L] Layer2
* [G] Group3
* [L] Layer3
* [G] Group4
* [L] Layer4
*
*/
var grp1 = mdf.AddGroup("Group1");
var grp2 = mdf.AddGroup("Group2");
var grp3 = mdf.AddGroup("Group3");
var grp4 = mdf.AddGroup("Group4");
grp3.Group = "Group2";
grp2.Group = "Group1";
var lyr1 = mdf.AddLayer("Group1", "Layer1", "Library://Test.LayerDefinition");
var lyr2 = mdf.AddLayer("Group2", "Layer2", "Library://Test.LayerDefinition");
var lyr3 = mdf.AddLayer("Group3", "Layer3", "Library://Test.LayerDefinition");
var lyr4 = mdf.AddLayer("Group4", "Layer4", "Library://Test.LayerDefinition");
//Delete group 1. Expect the following structure
/*
* [G] Group4
* [L] Layer4
*/
mdf.RemoveLayerGroupAndChildLayers("Group1");
Assert.Equal(1, mdf.GetGroupCount());
Assert.Equal(1, mdf.GetDynamicLayerCount());
Assert.Null(mdf.GetLayerByName("Layer1"));
Assert.Null(mdf.GetLayerByName("Layer2"));
Assert.Null(mdf.GetLayerByName("Layer3"));
Assert.NotNull(mdf.GetLayerByName("Layer4"));
Assert.Null(mdf.GetGroupByName("Group1"));
Assert.Null(mdf.GetGroupByName("Group2"));
Assert.Null(mdf.GetGroupByName("Group3"));
Assert.NotNull(mdf.GetGroupByName("Group4"));
}
/// <summary>
/// Removes a layer group and all layers associated with this group
/// </summary>
/// <param name="map"></param>
/// <param name="groupName"></param>
/// <returns>The number of layers removed. Returns 0 if the group is empty or does not exist</returns>
public static int RemoveLayerGroupAndChildLayers(this IMapDefinition map, string groupName)
{
Check.NotNull(map, "map"); //NOXLATE
Check.NotEmpty(groupName, "groupName"); //NOXLATE
var affectedParentGroups = new Dictionary <string, List <IMapLayerGroup> >();
IMapLayerGroup group = null;
foreach (var grp in map.MapLayerGroup)
{
if (grp.Name == groupName)
{
group = grp;
}
string parentGroupName = grp.Group;
if (!string.IsNullOrEmpty(parentGroupName))
{
if (!affectedParentGroups.ContainsKey(parentGroupName))
{
affectedParentGroups[parentGroupName] = new List <IMapLayerGroup>();
}
affectedParentGroups[parentGroupName].Add(grp);
}
}
if (group != null)
{
List <IMapLayer> layers = new List <IMapLayer>(map.GetLayersForGroup(groupName));
int removed = 0;
//Remove layers first
foreach (var l in layers)
{
map.RemoveLayer(l);
removed++;
}
//Then the group
map.RemoveGroup(group);
//Then see if any child groups are under this group and remove them too
if (affectedParentGroups.ContainsKey(group.Name))
{
for (int i = 0; i < affectedParentGroups[group.Name].Count; i++)
{
var removeMe = affectedParentGroups[group.Name][i];
removed += map.RemoveLayerGroupAndChildLayers(removeMe.Name);
}
}
return(removed);
}
return(0);
}
