/// <summary>
/// Command handler which adds a new VI to the project (under the default target)
/// </summary>
public static void OnAddNewVI(ICommandParameter parameter, ICompositionHost host, DocumentEditSite site)
{
var project = host.GetSharedExportedValue <IDocumentManager>().ActiveProject;
var createInfo = EnvoyCreateInfo.CreateForNew(VirtualInstrument.VIModelDefinitionType, new QualifiedName("New VI.gvi"));
Envoy createdItem = null;
ILockedSourceFile createdFile = null;
// Always perform modifications from within a transaction
// Here we are creating a user transaction which means it is undoable
using (var transaction = project.TransactionManager.BeginTransaction("Add A VI", TransactionPurpose.User))
{
createdFile = project.CreateNewFile(null, createInfo);
createdItem = createdFile?.Envoy;
transaction.Commit();
}
// edit the newly created VI
createdItem?.Edit();
// After editing dispose our lock in the file
createdFile?.Dispose();
}
/// <summary>
/// Command handler which adds a new member VI to the gtype that is currently being edited
/// </summary>
public static void OnAddNewMemberVI(ICommandParameter parameter, ICompositionHost host, DocumentEditSite site)
{
// Check to see that the user is currently editing a type and if not do nothing.
var gTypeEnvoy = site?.ActiveDocument?.Envoy;
var gType = (GTypeDefinition)gTypeEnvoy?.ReferenceDefinition;
if (gType == null)
{
return;
}
var project = host.GetSharedExportedValue <IDocumentManager>().ActiveProject;
var createInfo = EnvoyCreateInfo.CreateForNew(VirtualInstrument.VIModelDefinitionType, "New Member VI.gvi");
Envoy createdItem = null;
ILockedSourceFile createdFile = null;
// Always perform modifications from within a transaction
// Here we are creating a user transaction which means it is undoable
using (var transaction = gType.TransactionManager.BeginTransaction("Add A VI", TransactionPurpose.User))
{
createdFile = project.CreateNewFile(gType.Scope, createInfo);
createdFile.Envoy.UpdateStoragePath("Members\\New Member VI.gvi");
createdItem = createdFile.Envoy;
transaction.Commit();
}
// Lets add a terminal to the member data
// First we query for the merge script provider from our gtype. Merge scripts are snippets of code that can be
// merged into diagrams / panels / ...
// The gtype will provide a merge script that can be used to add data item (control / terminal) to a VI and
// many other things
string mergeScriptText = string.Empty;
var dataProviders = gTypeEnvoy.QueryService <IProvideMergeScriptData>();
foreach (var dataProvider in dataProviders)
{
foreach (var script in dataProvider.MergeScriptData)
{
if (script.ClipboardDataFormat == VIDiagramControl.ClipboardDataFormat)
{
// Found the merge script for a VI diagram, we are done
mergeScriptText = script.MergeText;
break;
}
}
}
// Now merge the script onto the diagram of the VI we just created
if (!string.IsNullOrEmpty(mergeScriptText))
{
var vi = (VirtualInstrument)createdItem.ReferenceDefinition;
// Always perform modifications from within a transaction
// We are making this transaction a non user so that it cannot be undone it is just the initial state of the VI
using (var transaction = vi.TransactionManager.BeginTransaction("Add A VI", TransactionPurpose.NonUser))
{
var mergeScript = MergeScript.FromString(mergeScriptText, host);
var resolver = new MergeScriptResolver(mergeScript, host);
resolver.Merge(vi.BlockDiagram);
// Don't forget to commit the transaction or it will cancel.
transaction.Commit();
}
}
// Now edit the memeber VI that was just created, and this time let's edit starting on the diagram
EditDocumentInfo editInfo = new EditDocumentInfo();
editInfo.EditorType = typeof(VIDiagramControl);
createdItem?.Edit(editInfo);
// After editing dispose our lock in the file
createdFile?.Dispose();
}