private void OnNextChanged(object sender, PropertyChangedEventArgs e)
{
if ((e.PropertyName == "X" || e.PropertyName == "Y") && Packet.Progress == 100)
{
var position = EdgePointHelper.FindCenterOfNode(_b);
X = position.X;
Y = position.Y;
}
}
public PacketWrapper(Datagram packet, GraphViewModel vm)
{
Packet = packet;
packet.PropertyChanged += OnPacketPropertyChanged;
_vm = vm;
_a = _vm.GetVertex((int)Packet.Previous);
_b = _vm.GetVertex((int)Packet.Next);
_a.PropertyChanged += OnPreviousChanged;
_b.PropertyChanged += OnNextChanged;
var from = EdgePointHelper.FindCenterOfNode(_a);
X = from.X;
Y = from.Y;
}
private void OnPacketPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "Next")
{
_b.PropertyChanged -= OnNextChanged;
_b = _vm.GetVertex((int)Packet.Next);
_b.PropertyChanged += OnNextChanged;
}
if (e.PropertyName == "Previous")
{
_a.PropertyChanged -= OnPreviousChanged;
_a = _vm.GetVertex((int)Packet.Previous);
_a.PropertyChanged += OnPreviousChanged;
}
if (e.PropertyName == "Progress")
{
var from = EdgePointHelper.FindCenterOfNode(_a);
var to = EdgePointHelper.FindCenterOfNode(_b);
var vector = EdgePointHelper.FindVector(from, to);
X = from.X + vector.X * Packet.Progress / 100;
Y = from.Y + vector.Y * Packet.Progress / 100;
}
}
