/// <summary>
/// This command merges the last created merge script onto the active editor. It better match the formats since we are
/// not checking.
/// </summary>
public static void OnMergeCapturedMergeScript(ICommandParameter parameter, ICompositionHost host, DocumentEditSite site)
{
if (string.IsNullOrEmpty(_lastMergeScript))
{
return;
}
// The root element is the root of what ever the active editor is editing. This would be things like the BlockDiagram
// or FrontPanel of a VI.
var rootElement = site.ActiveDocumentEditor?.EditorInfo?.RootElement;
if (rootElement != null)
{
// Always perform modifications from within a transaction
// Here we are creating a user transaction which means it is undoable
using (var transaction = rootElement.TransactionManager.BeginTransaction("Merge", TransactionPurpose.User))
{
var mergeScript = MergeScript.FromString(_lastMergeScript, host);
var resolver = new MergeScriptResolver(mergeScript, host);
resolver.Merge(rootElement);
// Don't forget to commit the transaction
transaction.Commit();
}
}
}
private static void HandleExecuteBorrowMutableCommand(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
selection.GetBorrowTunnels <BorrowTunnel>().SetBorrowTunnelsMode(BorrowMode.Mutable);
}
private static void HandleAddUnwrapOptionTunnel(object parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
var flatSequenceStructureViewModels = selection.OfType <StructureViewModel>().WhereNotNull();
if (flatSequenceStructureViewModels.Any())
{
using (var transaction = flatSequenceStructureViewModels.First().TransactionManager.BeginTransaction("Add Unwrap Option Tunnels", TransactionPurpose.User))
{
foreach (var structureViewModel in flatSequenceStructureViewModels)
{
Structure model = (Structure)structureViewModel.Model;
SMRect leftRect, rightRect;
BorderNodeViewModelHelpers.FindBorderNodePositions(structureViewModel, out leftRect, out rightRect);
UnwrapOptionTunnel unwrapOptionTunnel = model.MakeTunnel <UnwrapOptionTunnel>(model.AncestorDiagram, model.NestedDiagrams.First());
unwrapOptionTunnel.Top = leftRect.Y;
unwrapOptionTunnel.Left = leftRect.X;
}
transaction.Commit();
}
}
}
private static void HandleAddLockTunnel(object parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
var structureViewModels = selection.OfType <StructureViewModel>().WhereNotNull();
if (structureViewModels.Any())
{
using (var transaction = structureViewModels.First().TransactionManager.BeginTransaction("Add Lock Tunnels", TransactionPurpose.User))
{
foreach (var structureViewModel in structureViewModels)
{
SMRect leftRect, rightRect;
BorderNodeViewModelHelpers.FindBorderNodePositions(structureViewModel, out leftRect, out rightRect);
Structure model = (Structure)structureViewModel.Model;
LockTunnel lockTunnel = model.MakeTunnel <LockTunnel>(model.PrimaryNestedDiagram, model.NestedDiagrams.First());
FlatSequenceTerminateLifetimeTunnel flatSequenceTerminateLifetimeTunnel = model.MakeTunnel <FlatSequenceTerminateLifetimeTunnel>(model.AncestorDiagram, model.NestedDiagrams.First());
lockTunnel.TerminateLifetimeTunnel = flatSequenceTerminateLifetimeTunnel;
flatSequenceTerminateLifetimeTunnel.BeginLifetimeTunnel = lockTunnel;
// Set both as rules were not consistently picking right one to adjust to other.
lockTunnel.Top = leftRect.Y;
lockTunnel.Left = leftRect.X;
flatSequenceTerminateLifetimeTunnel.Top = lockTunnel.Top;
flatSequenceTerminateLifetimeTunnel.Left = rightRect.X;
}
transaction.Commit();
}
}
}
public Refactorings([NotNull] ICompositionHost compositionHost)
{
Contract.Requires(compositionHost != null);
_compositionHost = compositionHost;
}
public static void TraceError([NotNull] this ICompositionHost exportProvider, [Localizable(false)][NotNull] string format, [NotNull][ItemNotNull] params object[] args)
{
exportProvider.GetExportedValue <ITracer>().TraceError(string.Format(CultureInfo.CurrentCulture, format, args));
}
/// <summary>
/// This is the command enabler for the multiple by 10 command. Command enablers are called when the state of the editor changes
/// The enable can update the state of the command based on the current state of the editor (what is selected, is something running, ...)
/// </summary>
public static bool CanMultiplyBy10(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
// This command is always enabled
return(true);
}
/// <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();
}
public static T GetExportedValueOrDefault <T>([NotNull] this ICompositionHost compositionHost) where T : class
{
Contract.Requires(compositionHost != null);
return(compositionHost.Container.GetExportedValueOrDefault <T>());
}
private static void HandleExecuteVariantCommand(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
SetTypeDiagramSelfMode(selection, SelfTypeMode.Variant);
}
private static bool HandleCanExecuteVariantCommand(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
return(UpdateParameterFromModeValue(parameter, selection, SelfTypeMode.Variant));
}
/// <summary>
/// Here we handle the user changing the given command.
/// Our job is to take the current value in the parameter and update our model
/// </summary>
/// <param name="parameter">command parameter - this is where the current 'value' should be held</param>
/// <param name="selection">user selection, for commands based on selection</param>
/// <param name="host">composition host</param>
/// <param name="site">for communicating with user interface APIs</param>
private static void HandleExecuteCommand(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
var viewModel = selection.OfType <ElementViewModel>().First();
var booleanParameter = parameter as ICheckableCommandParameter;
var choiceParameter = parameter as IChoiceCommandParameter;
var numericParameter = parameter as IValueCommandParameter;
var textParameter = parameter as ITextCommandParameter;
var colorParameter = parameter as ColorCommandParameter;
// Update the model based on current state. In general, changes to the model should
// be transacted so undo redo works.
using (var transaction = viewModel.Element.TransactionManager.BeginTransaction("update", NationalInstruments.SourceModel.TransactionPurpose.User))
{
// update state of the model based on type of parameter.
// viewModel.Element.newState = parameter.newValue;
transaction.Commit();
}
}
/// <summary>
/// A generic CanExecute handler.
/// The role of this handler is to take the current state in the model and transfer it to the parameter,
/// which is used by the view to display the current value.
/// In general, you would likely write a different one for each command that did the appropriate
/// cast of the parameter to get/set the value.
/// </summary>
/// <param name="parameter">command parameter - this is where the current 'value' should be held</param>
/// <param name="selection">user selection, for commands based on selection</param>
/// <param name="host">composition host</param>
/// <param name="site">for communicating with user interface APIs</param>
/// <returns>true if it can handle</returns>
public static bool HandleCanExecuteCommand(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
// probably cast/OfType to your derived view model
var viewModel = selection.OfType <ElementViewModel>().First();
var booleanParameter = parameter as ICheckableCommandParameter;
var choiceParameter = parameter as IChoiceCommandParameter;
var numericParameter = parameter as IValueCommandParameter;
var textParameter = parameter as ITextCommandParameter;
var colorParameter = parameter as ColorCommandParameter;
if (booleanParameter != null)
{
booleanParameter.IsChecked = true;
}
else if (choiceParameter != null)
{
if (choiceParameter.Choices == null)
{
choiceParameter.Choices = new object[] { "one", "two", "three" }.Select(item => new ChoiceCommandParameterChoice(item, null, item.ToString())).ToArray();
choiceParameter.Choices.ElementAt(1).IsEnabled = false;
}
}
else if (textParameter != null)
{
// This is for textbox and Path controls
textParameter.Text = viewModel.Name;
}
else if (colorParameter != null)
{
// color and others are also value parameters, so we check them first.
colorParameter.Value = SMBrush.FromBrush(Brushes.Red);
}
else if (numericParameter != null)
{
numericParameter.Value = 3.14;
}
return(true); // or false to disable the command
}
public RuntimeExecutionTarget(ICompositionHost host)
{
Host = host;
}
public MapView(ICompositionHost compositionHost)
{
this.SetExportProvider(compositionHost.Container);
InitializeComponent();
}
private static void SelectChannels(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
IEnumerable <string> frequencyChannels = selection.Select(item => item.Model)
.OfType <PulseWidthModulationControlModel>()
.Select(model => model.FrequencyChannel)
.Where(channel => !string.IsNullOrEmpty(channel))
.ToList();
IEnumerable <string> dutyCycleChannels = selection.Select(item => item.Model)
.OfType <PulseWidthModulationControlModel>()
.Select(model => model.DutyCycleChannel)
.Where(channel => !string.IsNullOrEmpty(channel))
.ToList();
var systemDefinitionPalette = SystemDefinitionPaletteControl.Activate(site);
systemDefinitionPalette.SelectNodes(dutyCycleChannels.Concat(frequencyChannels));
}
/// <summary>
/// Creates a part from the specified value and composes it in the specified composition container. See <see cref="AttributedModelServices.ComposeExportedValue{T}(CompositionContainer, T)"/>.
/// </summary>
/// <typeparam name="T">The type of the new part.</typeparam>
/// <param name="compositionHost">The composition host.</param>
/// <param name="exportedValue">The value to compose.</param>
public static void ComposeExportedValue <T>([NotNull] this ICompositionHost compositionHost, [CanBeNull] T exportedValue)
{
Contract.Requires(compositionHost != null);
compositionHost.Container.ComposeExportedValue(exportedValue);
}
/// <summary>
/// This command create a merge script string from the selection of the active editor. Merge scripts are what are used
/// for the clipboard, palette entries, and drag drop. Merge scripts are basically mini versions of our persisted source
/// file format. Merge scripts are also useful for scripting use cases where merge scripts can be pased onto a diagram,
/// wired together and modified. Using merge scripts as templates is easier than writing a bunch on scripting code by hand.
/// </summary>
public static void OnCreateMergeScriptFromSelection(ICommandParameter parameter, ICompositionHost host, DocumentEditSite site)
{
var selection = site.ActiveSelection.OfType <IElementViewModel>();
if (!selection.Any())
{
return;
}
// Create an Element selection is which a selection model for the selected view models
var elementSelection = SelectionToolViewModel.CreateElementSelection(selection, true);
// Get the text from the merge script
_lastMergeScript = elementSelection.CopyMergeScript(host, true);
Clipboard.SetText(_lastMergeScript);
}
private static void HandleAddIterateTunnel(object parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
var structureViewModels = selection.OfType <LoopViewModel>().WhereNotNull();
if (structureViewModels.Any())
{
using (var transaction = structureViewModels.First().TransactionManager.BeginTransaction("Add Iterate Tunnels", TransactionPurpose.User))
{
foreach (var structureViewModel in structureViewModels)
{
SMRect leftRect, rightRect;
BorderNodeViewModelHelpers.FindBorderNodePositions(structureViewModel, out leftRect, out rightRect);
var model = (Structure)structureViewModel.Model;
LoopIterateTunnel iterateTunnel = model.MakeBorderNode <LoopIterateTunnel>();
LoopTerminateLifetimeTunnel loopTerminateLifetimeTunnel = model.MakeBorderNode <LoopTerminateLifetimeTunnel>();
iterateTunnel.TerminateLifetimeTunnel = loopTerminateLifetimeTunnel;
loopTerminateLifetimeTunnel.BeginLifetimeTunnel = iterateTunnel;
// Set both as rules were not consistently picking right one to adjust to other.
iterateTunnel.Top = leftRect.Y;
iterateTunnel.Left = leftRect.X;
loopTerminateLifetimeTunnel.Top = iterateTunnel.Top;
loopTerminateLifetimeTunnel.Left = rightRect.X;
}
transaction.Commit();
}
}
}
/// <summary>
/// This is the command handler that will add the code to multiple the output of the random number primitive by 10
/// This is called when the user presses the Multiply By 10 button
/// </summary>
/// <param name="parameter">The command parameter associated with instance of the command</param>
/// <param name="selection">The current selection</param>
/// <param name="host">The Composition host for the session</param>
/// <param name="site">The document edit site which is managing the edit session</param>
public static void OnMultipleBy10(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
// The selected item will be the random number node since we only add this command for random numbers
var node = selection.First().Model as Node;
if (node == null)
{
return;
}
// Start a transaction and add content to multiply the output by 10
using (var transaction = node.TransactionManager.BeginTransaction("Multiple By 10", TransactionPurpose.User))
{
// Create a multiple node, position it nicely to the right ot the random number, and add it to the same diagram
var multiply = Multiply.Create(ElementCreateInfo.ForNew);
multiply.TopLeft = new SMPoint(node.Bounds.Right + StockDiagramGeometries.StandardNodeWidth, node.Top + (2 * StockDiagramGeometries.GridSize));
node.Diagram.AddNode(multiply);
// Wire the random number output to the first input on the multiple node
node.Diagram.WireWithin((NodeTerminal)node.OutputTerminals.First(), (NodeTerminal)multiply.InputTerminals.First());
// Create a Double Numeric Constant with an initial value of 10.0
var literalBuilder = LiteralBuilder.GetLiteralBuilder(host);
var context = new CreateLiteralContext(PFTypes.Double, 10.0);
var literal = literalBuilder.CreateLiteral(context);
// Position the constant nicely and add it to the diagram
literal.TopLeft = new SMPoint(node.Left + StockDiagramGeometries.TinyNodeWidth, node.Bounds.Bottom + (2 * StockDiagramGeometries.GridSize));
node.Diagram.AddNode(literal);
// Wire the constant to the multiply node
node.Diagram.WireWithin(literal.OutputTerminal, (NodeTerminal)multiply.InputTerminals.ElementAt(1));
// Commit the transaction to finish the operation
transaction.Commit();
}
}
public static bool UpdateIsActive(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
var checkableParameter = parameter as ICheckableCommandParameter;
if (checkableParameter != null)
{
checkableParameter.IsChecked = CommandHelpers.GetCheckedState(selection.OfType <InteractiveNodeViewModel>(), vm => vm.IsActive);
}
return(true);
}
public static void TraceError([NotNull] this ICompositionHost exportProvider, [Localizable(false)][NotNull] string message)
{
exportProvider.GetExportedValue <ITracer>().TraceError(message);
}
/// <summary>
/// This command handler is used in the right rail to change the state of the IsActive property.
/// </summary>
public static void OnIsActive(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
// Get the selected interactive node view models
var selected = selection.OfType <InteractiveNodeViewModel>();
var checkableParameter = (ICheckableCommandParameter)parameter;
if (selected.Any())
{
// Create a transaction around the setting on all view models. This is make it a single undoable action
using (var transaction = selected.First().TransactionManager.BeginTransaction("Set IsActive", TransactionPurpose.User))
{
// Set the state of the IsActive property based on the state of the checkbox
foreach (var selectedItem in selected)
{
selectedItem.IsActive = (bool)checkableParameter.IsChecked;
}
// don't forget to commit the transaction
transaction.Commit();
}
}
}
private static bool HandleCanAddLockTunnel(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
return(selection.OfType <StructureViewModel>().Any());
}
private static void LaunchFrequencyChannelBrowser(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
_settingFrequency = true;
LaunchChannelBrowser(parameter, selection, host, site);
}
private static bool HandleCanAddUnwrapOptionTunnel(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
return(selection.OfType <FlatSequenceEditor>().Any());
}
/// <summary>
/// This can execute method is run periodically by the command to determine whether it should be enabled or disabled.
/// </summary>
private static bool CanLaunchChannelBrowser(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
return(selection.All(s => s.Model is PulseWidthModulationControlModel));
}
private static bool HandleCanExecuteBorrowMutableCommand(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
selection.CheckAllBorrowModesMatch <BorrowTunnel>(parameter, BorrowMode.Mutable);
return(true);
}
private static void LaunchChannelBrowser(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
_uiSdfBrowsePopup = new ChannelPopup
{
ShowWaveforms = false,
Name = "UI_SDFBrowsePopup",
IsOpen = false,
Placement = Placement.BelowCenter
};
// Register the property changed callback for the popup window
WeakEventManager <ChannelPopup, PropertyChangedEventArgs> .AddHandler(_uiSdfBrowsePopup, "PropertyChanged", ChannelNamePropertyChanged);
// Show Popup window with Channels.
_currentSelection = selection.ToList();
_uiSdfBrowsePopup.PlacementTarget = (UIElement)parameter.AssociatedVisual;
_uiSdfBrowsePopup.Channel = _settingFrequency ? ((PulseWidthModulationControlModel)_currentSelection.First().Model).FrequencyChannel : ((PulseWidthModulationControlModel)_currentSelection.First().Model).DutyCycleChannel;
_uiSdfBrowsePopup.ShowSdfBrowser(host, true, false);
}
public static bool CanHistory(ICommandParameter parameter, ICompositionHost host, DocumentEditSite site)
{
return(true);
}
private static bool CanSelectChannel(ICommandParameter parameter, IEnumerable <IViewModel> selection, ICompositionHost host, DocumentEditSite site)
{
return(host.GetSharedExportedValue <VeriStandHelper>().IsSystemDefinitionValid);
}