public void DemoteLayer(Layer selectedLayer)
{
// Find the collection the layer is in.
LayerCollection owningCollection;
if (IncludedLayers.Contains(selectedLayer))
{
owningCollection = IncludedLayers;
}
else
{
owningCollection = ExcludedLayers;
}
// Get the current index (position) of the layer.
int layerIndex = owningCollection.IndexOf(selectedLayer);
// Skip if the layer can't be moved down because it is already at the bottom.
if (layerIndex == owningCollection.Count - 1)
{
return;
}
// Move the layer by removing it and re-adding it at its old position plus 1.
owningCollection.Remove(selectedLayer);
owningCollection.Insert(layerIndex + 1, selectedLayer);
}
public void MoveLayer(Layer selectedLayer)
{
// Remove the layer from the list it is currently in and add it to the other list.
if (IncludedLayers.Contains(selectedLayer))
{
IncludedLayers.Remove(selectedLayer);
ExcludedLayers.Add(selectedLayer);
}
else
{
ExcludedLayers.Remove(selectedLayer);
IncludedLayers.Add(selectedLayer);
}
}
public void MoveLayer(LayerCollection owningCollection, int position)
{
// Find the selected layer.
Layer selectedLayer = owningCollection[position];
// Move the layer from one list to another by removing it from the source list and adding it to the destination list.
if (IncludedLayers.Contains(selectedLayer))
{
IncludedLayers.Remove(selectedLayer);
ExcludedLayers.Add(selectedLayer);
}
else
{
ExcludedLayers.Remove(selectedLayer);
IncludedLayers.Add(selectedLayer);
}
}
public void PromoteLayer(Layer selectedLayer)
{
// Find the collection the layer is in.
LayerCollection owningCollection = IncludedLayers.Contains(selectedLayer) ? IncludedLayers : ExcludedLayers;
// Get the current index (position) of the layer.
int layerIndex = owningCollection.IndexOf(selectedLayer);
// Skip if the layer can't be moved because it is already at the top.
if (layerIndex < 1)
{
return;
}
// Move the layer by removing it and re-adding it at its old position minus 1.
owningCollection.Remove(selectedLayer);
owningCollection.Insert(layerIndex - 1, selectedLayer);
}
public override void CommitEditingStyle(UITableView tableView, UITableViewCellEditingStyle editingStyle, NSIndexPath indexPath)
{
// Commit editing - in this case, editing means insertion or deletion.
Layer selectedLayer;
switch (indexPath.Section)
{
case 0:
selectedLayer = IncludedLayers[indexPath.Row];
IncludedLayers.Remove(selectedLayer);
ExcludedLayers.Add(selectedLayer);
break;
case 1:
selectedLayer = ExcludedLayers[indexPath.Row];
ExcludedLayers.Remove(selectedLayer);
IncludedLayers.Add(selectedLayer);
break;
}
// Force the view to reload its data.
tableView.ReloadData();
}
