static public void RelinkToDoc(_BcAp.Document document)
{
if (LinkedDocument == document)
{
return;
}
if (LinkedDocument != null)
{
LinkedDocument.CommandEnded -= OnCommandEnded;
LinkedDocument.Database.ObjectAppended -= OnObjectAppended;
LinkedDocument.Database.ObjectErased -= OnObjectErased;
LinkedDocument.Database.ObjectModified -= OnObjectModified;
LinkedDocument.CloseWillStart -= OnBcDocCloseWillStart;
}
_preview?.Dispose();
LinkedDocument = document;
LinkedDocument.CloseWillStart += OnBcDocCloseWillStart;
LinkedDocument.Database.ObjectModified += OnObjectModified;
LinkedDocument.Database.ObjectErased += OnObjectErased;
LinkedDocument.Database.ObjectAppended += OnObjectAppended;
LinkedDocument.CommandEnded += OnCommandEnded;
_preview = new Visualization.GrasshopperPreview();
ExpireGH();
NeedRedraw = true;
}
static void OnBcDocCloseWillStart(object sender, EventArgs e)
{
LinkedDocument.CloseWillStart -= OnBcDocCloseWillStart;
_preview?.Dispose();
_preview = null;
LinkedDocument = null;
ExpireGH();
}
static void OnDocumentBecameCurrent(object sender, _BcAp.DocumentCollectionEventArgs e)
{
if (LinkedDocument == null)
{
return;
}
if (e.Document != LinkedDocument)
{
_preview?.Dispose();
_preview = null;
}
else
{
_preview = new Visualization.GrasshopperPreview();
}
}