private void Canvas_MouseMove_1(object sender, System.Windows.Input.MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
DrawingData data;
Line line = new Line();
line.Stroke = currentBrush;
line.X1 = currentPoint.X;
line.Y1 = currentPoint.Y;
line.X2 = e.GetPosition(this).X;
line.Y2 = e.GetPosition(this).Y;
currentPoint = e.GetPosition(this);
if (sender != null && isConnected)
{
data = new DrawingData(line.X1, line.Y1);
Byte[] data1 = data.ToBytesPoints();
this.sender.Send(data1, data1.Length);
data = new DrawingData(line.X2, line.Y2);
Byte[] data2 = data.ToBytesPoints();
this.sender.Send(data2, data2.Length);
}
paintSurface.Children.Add(line);
}
}
private void Canvas_MouseDown_1(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (e.ButtonState == MouseButtonState.Pressed)
{
DrawingData data;
currentPoint = e.GetPosition(this);
if (sender != null && isConnected)
{
data = new DrawingData(currentPoint.X, currentPoint.Y, currentColor.A, currentColor.R, currentColor.G, currentColor.B);
Byte[] data1 = data.ToBytesAll();
this.sender.Send(data1, data1.Length);
}
}
}
public static DrawingData ToData(byte[] bytes)
{
DrawingData result = new DrawingData();
result.ClientID = bytes[0];
result.X = BitConverter.ToDouble(bytes, 1);
result.Y = BitConverter.ToDouble(bytes, 9);
if (bytes.Length > 17)
{
result.A = bytes[17];
result.R = bytes[18];
result.G = bytes[19];
result.B = bytes[20];
}
return(result);
}
private void AddLineToCanvas(DrawingData receivedData)
{
Line line = new Line();
SolidColorBrush brush = new SolidColorBrush(lastColors[receivedData.ClientID]);
line.Stroke = brush;
if (lastPoints[receivedData.ClientID] != null)
{
line.X1 = lastPoints[receivedData.ClientID].X;
line.Y1 = lastPoints[receivedData.ClientID].Y;
line.X2 = receivedData.X;
line.Y2 = receivedData.Y;
lastPoints[receivedData.ClientID] = receivedData;
paintSurface.Children.Add(line);
}
else
{
lastPoints[receivedData.ClientID] = receivedData;
}
}
private static void ProcessData(IAsyncResult ar)
{
UdpClient c = (UdpClient)ar.AsyncState;
IPEndPoint receivedIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
Byte[] receivedBytes = c.EndReceive(ar, ref receivedIpEndPoint);
DrawingData receivedData = DrawingData.ToData(receivedBytes);
ClientInfo client = FindClient(receivedIpEndPoint);
if (client != null)
{
receivedData.ClientID = client.ID;
if (receivedBytes.Length > 17)
{
client.NewLine = true;
}
dataQueue.Enqueue(receivedData);
}
c.BeginReceive(ProcessData, ar.AsyncState);
}
private void ProcessData(IAsyncResult ar)
{
if (!shouldStop)
{
UdpClient c = (UdpClient)ar.AsyncState;
IPEndPoint receivedIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
Byte[] receivedBytes = c.EndReceive(ar, ref receivedIpEndPoint);
DrawingData receivedData = DrawingData.ToData(receivedBytes);
if (receivedBytes.Length > 17)
{
lastPoints[receivedData.ClientID] = null;
lastColors[receivedData.ClientID] = Color.FromArgb(receivedData.A, receivedData.R, receivedData.G, receivedData.B);
}
paintSurface.Dispatcher.Invoke(new AddLineToCanvasDelegate(AddLineToCanvas), new DrawingData[] { receivedData });
c.BeginReceive(ProcessData, ar.AsyncState);
}
else
{
return;
}
}
