public NodeBaseViewModel(IPamuxView v = null)
{
V = v;
var m = new NodeBaseModel(this);
m.PropertyChanged += (s, e) => { };
M = m;
}
private bool HitTest(out DependencyObject visualHit, out ActionTypes action, out NodeBaseModel model, out Node view, out NodeBaseViewModel viewModel)
{
model = null;
view = null;
viewModel = null;
action = ActionTypes.None;
var result = VisualTreeHelper.HitTest(LayoutRoot, Mouse.GetPosition(LayoutRoot));
visualHit = result?.VisualHit;
if (visualHit == null)
{
return(false);
}
var shape = (visualHit as Polygon) as Shape;
if (shape == null)
{
shape = (visualHit as Rectangle) as Shape;
if (shape == null)
{
shape = (visualHit as Ellipse) as Shape;
}
}
viewModel = (shape?.DataContext) as NodeBaseViewModel;
if (viewModel == null)
{
return(false);
}
view = viewModel.V as Node;
if (view == null)
{
return(false);
}
model = viewModel.M as NodeBaseModel;
if (model == null)
{
return(false);
}
if (shape.Name == null)
{
return(false);
}
switch (shape.Name)
{
case "ResizeCorner":
action = ActionTypes.Resize;
return(true);
case "NodePort":
action = ActionTypes.Port;
return(true);
}
action = ActionTypes.Drag;
return(true);
}
