private void TransformBubble(VisualNode node, TranslateTransform transform)
{
uint errorBubbleId = node.GetErrorBubbleId();
uint previewBubbleId = node.GetPreviewBubbleId();
if (errorBubbleId != uint.MaxValue)
{
DrawingVisual errorVisual = visualHost.GetDrawingVisualForBubble(errorBubbleId);
//RearrangeVisual(errorBubbleId, true);
errorVisual.Transform = transform;
}
if (previewBubbleId != uint.MaxValue)
{
DrawingVisual previewVisual = visualHost.GetDrawingVisualForBubble(previewBubbleId);
//RearrangeVisual(previewBubbleId, true);
previewVisual.Transform = transform;
}
}
private bool HandleEndNodeEdit(GraphCommand command)
{
uint nodeId = (uint)command.GetArgument(0);
string text = command.GetArgument(1) as string;
bool commit = (bool)command.GetArgument(2);
VisualNode node = this.GetVisualNode(nodeId);
bool setToPreviousValue = false;
bool setToDefaultValue = false;
bool recordAsCreation = false;
bool recordAndDelete = false;
bool validate = false;
bool delete = false;
text = node.PreprocessInputString(text);
bool committingEmptyContent = text == string.Empty;
bool committingSameContent = text == this.previousText;
bool startedOffDefaultValueDriver = this.previousText == Configurations.DriverInitialTextValue;
bool committingEmptyCodeBlock = text == string.Empty || text == Configurations.CodeBlockInitialMessage;
bool startedOffEmptyCodeBlock = this.previousText == string.Empty || this.previousText == Configurations.CodeBlockInitialMessage;
//Flow logic
if (node.VisualType == NodeType.CodeBlock)
{
if (commit)
{
if (committingEmptyCodeBlock)
{
if (startedOffEmptyCodeBlock)
{
delete = true;
}
else
{
recordAndDelete = true;
}
}
else //Not Empty
{
if (!committingSameContent)
{
validate = true;
}
if (startedOffEmptyCodeBlock)
{
recordAsCreation = true;
}
}
}
else //Not committing
{
if (startedOffEmptyCodeBlock)
{
delete = true;
}
}
}
else if (node.VisualType == NodeType.Driver)
{
if (commit)
{
if (committingEmptyContent)
{
if (node.IsEditingText)
{
setToDefaultValue = true;
}
else if (node.IsEditingCaption)
{
setToPreviousValue = true;
}
}
else //Not Empty
{
if (!committingSameContent)
{
validate = true;
}
}
}
}
else //Other nodes
{
if (commit)
{
if (committingEmptyContent)
{
setToPreviousValue = true;
}
else //Not empty
{
if (!committingSameContent)
{
validate = true;
}
}
}
}
//Execution
node.Edit(this.previousText, false);
if (delete)
{
if (null != visualHost)
{
this.visualHost.RemoveDrawingVisual(node.NodeId);
this.visualHost.RemoveDrawingVisual(node.GetErrorBubbleId());
this.visualHost.RemoveDrawingVisual(node.GetPreviewBubbleId());
this.visualHost.RemoveExtendedBubble(node.GetPreviewBubbleId());
}
uint[] outputSlots = node.GetOutputSlots();
uint[] inputSlots = node.GetInputSlots();
if (inputSlots != null)
{
foreach (uint inputSlot in inputSlots)
{
this.slotCollection.Remove(inputSlot);
}
}
if (outputSlots != null)
{
foreach (uint outputSlot in outputSlots)
{
this.slotCollection.Remove(outputSlot);
}
}
this.nodeCollection.Remove(node.NodeId);
this.bubbleCollection.Remove(node.GetErrorBubbleId());
this.bubbleCollection.Remove(node.GetPreviewBubbleId());
}
if (recordAndDelete)
{
DeltaNodes deltaNodes = new DeltaNodes();
deltaNodes.AppendToRemovedNodes(node);
deltaNodes.AppendToModifiedNodes(FindAssociatedNodesFromNodes(deltaNodes.RemovedNodes));
this.undoRedoRecorder.BeginGroup();
this.undoRedoRecorder.RecordRuntimeStatesForUndo(this.graphProperties.RuntimeStates);
this.undoRedoRecorder.RecordNodeDeletionForUndo(deltaNodes.RemovedNodes);
this.undoRedoRecorder.RecordNodeModificationForUndo(deltaNodes.ModifiedNodes);
this.DeleteNodes(deltaNodes.RemovedNodes);
this.undoRedoRecorder.EndGroup();
this.ValidateDefinedAndReferencedVariables();
this.UpdateSlotsVisiblity();
this.SynchronizeToLiveRunner(deltaNodes);
}
if (setToDefaultValue)
{
if (!startedOffDefaultValueDriver)
{
DeltaNodes deltaNodes = new DeltaNodes();
deltaNodes.AppendToModifiedNodes(node);
this.undoRedoRecorder.BeginGroup();
this.undoRedoRecorder.RecordNodeModificationForUndo(deltaNodes.ModifiedNodes);
this.undoRedoRecorder.EndGroup();
node.Edit(Configurations.DriverInitialTextValue, false);
this.SynchronizeToLiveRunner(deltaNodes);
}
string warningMessage = "Field cannot be empty. Value will be set to 0.";
node.SetErrorValue((object)warningMessage, ErrorType.Warning);
}
if (setToPreviousValue)
{
string warningMessage = "Field cannot be empty. Value will be reverted to previous state.";
node.SetErrorValue((object)warningMessage, ErrorType.Warning);
}
if (validate)
{
DeltaNodes deltaNodes = new DeltaNodes();
List <IVisualNode> addedNodes = new List <IVisualNode>();
List <IVisualNode> modifiedNodes = new List <IVisualNode>();
addedNodes.Add(node); // deltaNodes.AppendToAddedNodes(node);
// Start monitoring if we are going to undefine any variables.
this.graphProperties.RuntimeStates.BeginDefinitionMonitor();
this.undoRedoRecorder.BeginGroup();
this.undoRedoRecorder.RecordRuntimeStatesForUndo(this.graphProperties.RuntimeStates);
if (recordAsCreation)
{
this.undoRedoRecorder.RecordNodeCreationForUndo(addedNodes);
}
else //record edited node as modification
{
deltaNodes.AppendToModifiedNodes(node);
deltaNodes.AppendToModifiedNodes(FindAssociatedNodesFromNodes(addedNodes));
this.undoRedoRecorder.RecordNodeModificationForUndo(deltaNodes.ModifiedNodes);
}
// These methods (especially the first two and last two) must be
// called in this particular order (due to their dependencies).
//
// GC.ValidateNodesSyntax
// RS.UpdateVariableDefinitionMap
// GC.ValidateDefinedAndReferencedVariables
// GC.UpdateSlotsVisiblity
// GC.EstablishImplicitConnections
//
node.SetErrorValue(null, ErrorType.None);
node.Edit(text, false);
this.ValidateNodesSyntax(addedNodes);
this.graphProperties.RuntimeStates.UpdateVariablesDefinedInNode(node, false);
this.ValidateDefinedAndReferencedVariables();
this.UpdateSlotsVisiblity();
this.EstablishImplicitConnections(modifiedNodes);
this.edgeController.DeleteUnnecessaryEdges();
this.undoRedoRecorder.EndGroup();
// Now all the modifications are over, see what we have undefined.
Dictionary <uint, List <string> > undefinedVariables = null;
this.graphProperties.RuntimeStates.EndDefinitionMonitor(out undefinedVariables);
deltaNodes.AppendUndefinedVariables(undefinedVariables);
if (recordAsCreation)
{
deltaNodes.AppendToAddedNodes(addedNodes);
}
deltaNodes.AppendToModifiedNodes(modifiedNodes);
this.SynchronizeToLiveRunner(deltaNodes);
}
this.UpdateDirtyNodes();
this.edgeController.UpdateEdgeConnectTo(node);
node.DisableEdit();
if (validate && visualHost != null)
{
visualHost.ScrollToVisual(visualHost.GetDrawingVisualForNode(node.NodeId));
}
return(true);
}
// if it is node, once it is selected, it will be brought to the top
// if it is bubble, if its selected, it will follow its owners' z-index, if unselected, send to back,
// edge is different, when the edge is moving, it is drawn in another drawingVisual which is topmost,
// when the edge moving is done, it will draw on the old/own drawingVisual
//
private void RearrangeNodeAndBubbleVisual(VisualNode node, bool bringToFront)
{
if (null == visualHost)
return;
uint errorBubbleId = node.GetErrorBubbleId();
uint previewBubbleId = node.GetPreviewBubbleId();
if (bringToFront)
{
visualHost.RearrangeDrawingVisual(node.NodeId, bringToFront, uint.MaxValue);
if (errorBubbleId != uint.MaxValue)
visualHost.RearrangeDrawingVisual(errorBubbleId, bringToFront, node.NodeId);
if (previewBubbleId != uint.MaxValue)
visualHost.RearrangeDrawingVisual(previewBubbleId, bringToFront, node.NodeId);
}
else
{
if (errorBubbleId != uint.MaxValue)
visualHost.RearrangeDrawingVisual(errorBubbleId, bringToFront, uint.MaxValue);
if (previewBubbleId != uint.MaxValue)
visualHost.RearrangeDrawingVisual(previewBubbleId, bringToFront, uint.MaxValue);
}
}