/// <summary>
/// Method to select multiple areas...
/// Selected areas show up one by one...
/// No highlighting of selected objects
/// </summary>
/// <param name="collectionVM"></param>
/// <param name="uidoc"></param>
/// <param name="counter"></param>
internal static void GetAreasByIndividualSelection(AreaCollectionVM collectionVM, UIDocument uidoc, ref int counter)
{
while (!collectionVM.StopSelection)
{
Reference pickedRef;
try
{
// try catch to capture escape options
pickedRef = uidoc.Selection.PickObject(ObjectType.Element, new AreaSelectionFilter());
}
catch { break; }
if (collectionVM.StopSelection)
{
break;
}
var refeId = pickedRef.ElementId;
Element areaElement = uidoc.Document.GetElement(refeId);
Area area = areaElement as Area;
collectionVM.AddArea(area, counter);
counter++;
}
}
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.ActiveUIDocument;
Autodesk.Revit.ApplicationServices.Application app = uiapp.Application;
Document doc = uidoc.Document;
// set up UI
// check to see if an open window already exists
if (null == m_AreaCollectionVM)
{
m_AreaCollectionVM = new AreaCollectionVM();
m_PickOptionsCtrl = new PickOptionsCtrl(m_AreaCollectionVM);
}
Window win = new Window();
win.Width = 300;
win.Content = m_PickOptionsCtrl;
win.SizeToContent = SizeToContent.WidthAndHeight;
win.Topmost = true;
win.Show();
int counter = 0;
// make area interior fill visible
Category interiorFillVisibility = Category.GetCategory(doc, BuiltInCategory.OST_AreaInteriorFillVisibility);
Category areaRef = Category.GetCategory(doc, BuiltInCategory.OST_AreaReferenceVisibility);
using (Transaction t = new Transaction(doc))
{
t.Start("Showing Area Interior Fill");
doc.ActiveView.SetCategoryHidden(interiorFillVisibility.Id, false);
doc.ActiveView.SetCategoryHidden(areaRef.Id, false);
t.Commit();
}
// works for individual selection - no highlighting of selected area
//SelectionUtils.GetAreasByIndividualSelection(m_AreaCollectionVM, uidoc, ref counter);
// works for mulitple selection - highlights, but does not update on interface
while (!m_AreaCollectionVM.StopSelection)
{
SelectionUtils.GetAreasByMultipleSelection(m_AreaCollectionVM, uidoc, ref counter);
}
if (m_AreaCollectionVM.UpdateParameters)
{
// run process to update parameters according to the view model
// TODO.............................
}
return(Result.Succeeded);
}
/// <summary>
/// method to select multiple areas
/// selected areas shows up to gether
/// selected objects are highlighted
/// </summary>
/// <param name="collectionVM"></param>
/// <param name="uidoc"></param>
/// <param name="counter"></param>
internal static void GetAreasByMultipleSelection(AreaCollectionVM collectionVM, UIDocument uidoc, ref int counter)
{
IList <Reference> areasReferences = null;
ICollection <ElementId> selectedIds = null;
try
{
areasReferences = uidoc.Selection.PickObjects(ObjectType.Element, new AreaSelectionFilter());
}
catch
{
if (collectionVM.StopSelection)
{
return;
}
/*operation cancelled*/
TaskDialog.Show("Error", "Please select 'Finish' in the 'Options Bar' of the interface to complete the selection");
// exit command and close window
return;
}
if (null == areasReferences && null == selectedIds)
{
return;
}
// if no references were found, but selected items were retrieved
if (null == selectedIds && null != areasReferences)
{
selectedIds = areasReferences.Select(x => x.ElementId).ToList();
}
// use selected ids
var areasElements = selectedIds.Select(x => uidoc.Document.GetElement(x));
foreach (Element areaElement in areasElements)
{
Area area = areaElement as Area;
collectionVM.AddArea(area, counter);
counter++;
}
}
public PickOptionsCtrl(AreaCollectionVM areaCollectionVM)
{
InitializeComponent();
this.DataContext = m_areaCollectionVm = areaCollectionVM;
}