/// <summary>
/// Adds the message.
/// </summary>
/// <param name="edge">The edge.</param>
/// <param name="message">The message.</param>
private void AddMessage(NetSimConnection edge, ConnectionFrameMessage message)
{
INetSimVisualizableItem receiver;
INetSimVisualizableItem sender;
// get message receiver and sender
GetMessageReceiverSender(edge, message, out receiver, out sender);
var uimessage = new MessageControl(message.ShortName)
{
Width = 19,
Height = 19,
Tag = edge,
MessagePath = { Tag = edge }
};
// set message to sender location
int top = sender.Location.Top;
int left = sender.Location.Left;
if (this.IsMessageSendingAnimationDone(message.Id))
{
// calculate middle between A and B
top = (edge.EndPointA.Location.Top + edge.EndPointB.Location.Top) / 2;
left = (edge.EndPointA.Location.Left + edge.EndPointB.Location.Left) / 2;
}
// add meesage to this position
Canvas.SetLeft(uimessage, left);
Canvas.SetTop(uimessage, top);
this.drawCanvas.Children.Add(uimessage);
Storyboard storyBoard = null;
if (message.TransmissionStep == NetSimMessageTransmissionStep.Sending)
{
if (!this.IsMessageSendingAnimationDone(message.Id))
{
storyBoard = CreateMessageAnimation(edge, message, uimessage, NetSimMessageTransmissionStep.Sending);
// messageStates[message.Id] = NetSimMessageTransmissionStep.Sending;
}
}
else
{
if (!this.IsMessageReceivingAnimationDone(message.Id))
{
storyBoard = CreateMessageAnimation(
edge,
message,
uimessage,
NetSimMessageTransmissionStep.Receiving);
// messageStates[message.Id] = NetSimMessageTransmissionStep.Receiving;
}
}
if (storyBoard == null)
{
return;
}
// when the animation has finished - mark animation as done
// note: animation gets created multiple times - but only at last "redraw"
// it has time to finish
storyBoard.Completed += (s, e) => { this.messageStates[message.Id] = message.TransmissionStep; };
uimessage.BeginStoryboard(storyBoard);
// start the animation
storyBoard.Begin();
}