/// <summary>
/// Determines of the tree tool is enabled for the specified selection of items.
/// </summary>
/// <param name="selection">The selection.</param>
/// <returns>
/// Returns bitwise flag combination of the <see cref="mmToolState" /> to specify if enabled.
/// </returns>
protected virtual int InternalEnabled(IMMTreeViewSelection selection)
{
if (selection == null)
{
return(0);
}
if (selection.Count != 1)
{
return(0);
}
selection.Reset();
IMMPxNode node = (IMMPxNode)selection.Next;
IMMPxTask task = ((IMMPxNode3)node).GetTaskByName(this.Name);
if (task == null)
{
return(0);
}
if (task.get_Enabled(node))
{
return(3);
}
return(0);
}
/// <summary>
/// Executes the tree tool within error handling.
/// </summary>
/// <param name="selection">The selection.</param>
protected virtual void InternalExecute(IMMTreeViewSelection selection)
{
// Only enable if 1 item is selected.
if (selection == null || selection.Count != 1)
{
return;
}
// Execute the Task for the specified node.
selection.Reset();
IMMPxNode node = (IMMPxNode)selection.Next;
IMMPxTask task = ((IMMPxNode3)node).GetTaskByName(this.Name);
if (task == null)
{
return;
}
task.Execute(node);
}