public CanvasPoint BeginLinkage(PinViewModel pinViewModel)
{
_currentUnfinishedLink = new LinkViewModel(pinViewModel, null, ControlTypesResolver);
_linkViewModels.Add(_currentUnfinishedLink);
return(_currentUnfinishedLink.EndPoint);
}
public CanvasPoint BeginLinkage(PinViewModel pinViewModel)
{
_currentUnfinishedLink = new LinkViewModel(pinViewModel, null, ControlTypesResolver);
_linkViewModels.Add(_currentUnfinishedLink);
return _currentUnfinishedLink.EndPoint;
}
public void Link(Node sourceNode, IPin sourcePin, Node targetNode, IPin targetPin)
{
var linkViewModel = new LinkViewModel(
GetNodeViewModel(sourceNode).GetPinViewModel(sourcePin),
GetNodeViewModel(targetNode).GetPinViewModel(targetPin),
ControlTypesResolver);
_linkViewModels.Add(linkViewModel);
}
public CanvasPoint BeginRelinkage(PinViewModel pinViewModel)
{
_currentUnfinishedLink = _linkViewModels.First(model => model.TargetPinViewModel == pinViewModel);
_currentUnfinishedLink.TargetPinViewModel = null;
var canvasPoint = new CanvasPoint();
_currentUnfinishedLink.EndPoint = canvasPoint;
return(canvasPoint);
}
public void EndLinkage(PinViewModel pinViewModel)
{
if (_currentUnfinishedLink != null)
{
var success = false;
if (_currentUnfinishedLink.TargetPinViewModel == null)
{
// Can't link to nowhere
if (pinViewModel != null)
{
// Can't link input<->input
if (pinViewModel.Pin.Direction == PinDirection.Input)
{
// Can't link node to itself
if (pinViewModel.NodeViewModel != _currentUnfinishedLink.SourcePinViewModel.NodeViewModel)
{
// Hurray! Successfully linked!
// Cleanup previous loosers
foreach (var linkViewModel in _linkViewModels.Where(model => model.TargetPinViewModel == pinViewModel).ToArray())
{
Node.Unlink(linkViewModel.TargetPinViewModel.NodeViewModel.Node, linkViewModel.TargetPinViewModel.Pin);
_linkViewModels.Remove(linkViewModel);
}
_currentUnfinishedLink.TargetPinViewModel = pinViewModel;
Node.Link(
_currentUnfinishedLink.SourcePinViewModel.NodeViewModel.Node,
_currentUnfinishedLink.SourcePinViewModel.Pin,
pinViewModel.NodeViewModel.Node,
pinViewModel.Pin);
pinViewModel.NodeViewModel.Node.Pulse();
success = true;
}
}
}
}
if (!success)
{
_linkViewModels.Remove(_currentUnfinishedLink);
}
_currentUnfinishedLink = null;
}
}
public CanvasPoint BeginRelinkage(PinViewModel pinViewModel)
{
_currentUnfinishedLink = _linkViewModels.First(model => model.TargetPinViewModel == pinViewModel);
_currentUnfinishedLink.TargetPinViewModel = null;
var canvasPoint = new CanvasPoint();
_currentUnfinishedLink.EndPoint = canvasPoint;
return canvasPoint;
}
public void Link(Node sourceNode, IPin sourcePin, Node targetNode, IPin targetPin)
{
var linkViewModel = new LinkViewModel(
GetNodeViewModel(sourceNode).GetPinViewModel(sourcePin),
GetNodeViewModel(targetNode).GetPinViewModel(targetPin),
ControlTypesResolver);
_linkViewModels.Add(linkViewModel);
}
public void EndLinkage(PinViewModel pinViewModel)
{
if (_currentUnfinishedLink != null)
{
var success = false;
if (_currentUnfinishedLink.TargetPinViewModel == null)
{
// Can't link to nowhere
if (pinViewModel != null)
{
// Can't link input<->input
if (pinViewModel.Pin.Direction == PinDirection.Input)
{
// Can't link node to itself
if (pinViewModel.NodeViewModel != _currentUnfinishedLink.SourcePinViewModel.NodeViewModel)
{
// Hurray! Successfully linked!
// Cleanup previous loosers
foreach (var linkViewModel in _linkViewModels.Where(model => model.TargetPinViewModel == pinViewModel).ToArray())
{
Node.Unlink(linkViewModel.TargetPinViewModel.NodeViewModel.Node, linkViewModel.TargetPinViewModel.Pin);
_linkViewModels.Remove(linkViewModel);
}
_currentUnfinishedLink.TargetPinViewModel = pinViewModel;
Node.Link(
_currentUnfinishedLink.SourcePinViewModel.NodeViewModel.Node,
_currentUnfinishedLink.SourcePinViewModel.Pin,
pinViewModel.NodeViewModel.Node,
pinViewModel.Pin);
pinViewModel.NodeViewModel.Node.Pulse();
success = true;
}
}
}
}
if (!success)
{
_linkViewModels.Remove(_currentUnfinishedLink);
}
_currentUnfinishedLink = null;
}
}
