private void Draw(Canvas target, CustomBrush brush, double x1, double y1, double x2, double y2)
{
DrawEllipse(target, brush, x1, y1);
DrawLine(target, brush, x1, y1, x2, y2);
/*
* UseDispatcher(TBl_Debug, DispatcherPriority.Loaded, delegate
* {
* drawCount += 2;
* TBl_Debug.Text = drawCount.ToString();
* });
*/
}
private void DrawLine(Canvas target, CustomBrush brush, double x1, double y1, double x2, double y2)
{
target.Children.Add(new Line()
{
Stroke = brush.ColorBrush,
StrokeThickness = brush.Thickness,
X1 = x1,
Y1 = y1,
X2 = x2,
Y2 = y2
});
//Console.WriteLine(string.Format("{0}:{1} -> {2}:{3}", x1, y1, x2, y2));
}
private void DrawEllipse(Canvas target, CustomBrush brush, double x1, double y1)
{
mouseLastEllipsePosition.X = x1;
mouseLastEllipsePosition.Y = y1;
Ellipse ell = new Ellipse()
{
Stroke = brush.ColorBrush,
StrokeThickness = brush.Thickness,
Width = brush.Thickness,
Height = brush.Thickness
};
ell.SetValue(Canvas.LeftProperty, x1 - brush.Thickness / 2);
ell.SetValue(Canvas.TopProperty, y1 - brush.Thickness / 2);
Canvas_Drawing.Children.Add(ell);
}
public void Receive()
{
try
{
while (true)
{
Transfer <MessageContainer> transfer = new Transfer <MessageContainer>(Listener.AcceptTcpClient());
mw.WriteDebug("Client connected", LogLevels.Info);
int transferCount;
lock (__lockTransfers)
Transfers.Add(transfer);
transferCount = Transfers.Count + 1;
mw.UseDispatcher(mw.Canvas_Drawing, delegate
{
var msgList = new List <Message>();
if (mw.Canvas_Drawing.Children.Count < 1000) // Init with normal DrawData
{
//Send Drawing Data
foreach (var el in mw.Canvas_Drawing.Children)
{
if (el as Line != null)
{
Line l = (Line)el;
msgList.Add(new DrawData(l.X1, l.Y1, l.X2, l.Y2, (double)l.GetValue(Shape.StrokeThicknessProperty), l.GetValue(Shape.StrokeProperty).ToString()));
}
}
if (mw.DrawingLocked)
{
msgList.Add(new DrawLock());
}
else
{
msgList.Add(new DrawUnlock());
}
Send(transfer, new MessageContainer(msgList));
//Update other users
SendAll(new UserCount(transferCount));
}
else // Init with async DrawDataBlock
{
var msgListDrawData = new List <Message>();
msgList.Add(new DrawDataBlockFlag());
if (mw.DrawingLocked)
{
msgList.Add(new DrawLock());
}
//send no DrawUnlock to ensure the board is locked until DrawDataBlock
Send(transfer, new MessageContainer(msgList));
//Update other users
SendAll(new UserCount(transferCount));
//Send DrawDataBlock
CustomBrush lastBrush = null;
var lastLines = new List <NetCommunication.MessageTypes.SupportClasses.Line>();
foreach (var el in mw.Canvas_Drawing.Children)
{
if (el as Line != null)
{
Line l = (Line)el;
if (lastBrush == null)
{
lastBrush = new CustomBrush((SolidColorBrush)l.Stroke, l.StrokeThickness);
}
if (l.StrokeThickness != lastBrush.Thickness || l.Stroke != lastBrush.ColorBrush)
{
msgListDrawData.Add(new DrawDataBlock(lastBrush.ColorBrush.ToString(), lastBrush.Thickness, new List <NetCommunication.MessageTypes.SupportClasses.Line>(lastLines)));
lastLines.Clear();
lastBrush = new CustomBrush((SolidColorBrush)l.Stroke, l.StrokeThickness);
}
lastLines.Add(new NetCommunication.MessageTypes.SupportClasses.Line(l.X1, l.Y1, l.X2, l.Y2));
}
}
msgListDrawData.Add(new DrawDataBlock(lastBrush.ColorBrush.ToString(), lastBrush.Thickness, new List <NetCommunication.MessageTypes.SupportClasses.Line>(lastLines)));
Send(transfer, new MessageContainer(msgListDrawData));
}
});
//Start Receiver-Thread
ThreadPool.QueueUserWorkItem(delegate
{
try
{
while (true)
{
MessageReceived?.Invoke(transfer, new MessageReceivedEventArgs(transfer.Receive()));
}
}
catch (IOException)
{
OnClientDisconnect(transfer);
mw.WriteDebug("IOException in Server.Receive in transfer.Receive", LogLevels.Debug);
}
});
mw.UseDispatcher(mw.TBl_UserCount, delegate { mw.TBl_UserCount.Text = (transferCount).ToString(); });
}
}
catch (SocketException ex)
{
if (ex.ErrorCode != 10004) //WSACancelBlockingCall
{
mw.WriteDebug("WSACancelBlockingCall in Server.Recieve", LogLevels.Debug);
throw ex;
}
}
}
