Rearrange graph

PamhagenSysCtrl/Helpers/Pipeline/Valve.cs

@@ -16,17 +16,17 @@ namespace PamhagenSysCtrl.Helpers.Pipeline {
 
         public bool IsLocked { get; set; }
         public bool IsOpen => CallbackIsOpen();
-        public bool WantOpen => CallbackWantOpen();
+        public bool WantOpen => CallbackWantOpen(this);
         public ISet<IEdge> Inputs { get; init; }
         public ISet<IEdge> Outputs { get; init; }
 
         protected Func<bool> CallbackIsOpen;
-        protected Func<bool> CallbackWantOpen;
+        protected Func<Valve, bool> CallbackWantOpen;
 
         private Shape? _circle;
         private TextBlock? _text;
 
-        public Valve(int nr, double x, double y, Func<bool> cbOpen, Func<bool> cbWant) {
+        public Valve(int nr, double x, double y, Func<bool> cbOpen, Func<Valve, bool> cbWant) {
             CenterX = x;
             CenterY = y;
             Nr = nr;
@@ -53,8 +53,9 @@ namespace PamhagenSysCtrl.Helpers.Pipeline {
                 Height = DIAMETER,
                 TextAlignment = TextAlignment.Center,
                 VerticalAlignment = VerticalAlignment.Center,
+                SnapsToDevicePixels = true,
             };
-            _text.SetValue(Canvas.LeftProperty, CenterX - DIAMETER / 2);
+            _text.SetValue(Canvas.LeftProperty, CenterX - DIAMETER / 2 + 0.5);
             _text.SetValue(Canvas.TopProperty, CenterY - DIAMETER / 2 + 5.5);
             canvas.Children.Add(_circle);
             canvas.Children.Add(_text);