private void receiveStrokeAndAddToCanvas()
{
SignedStroke stroke = StrokeBitConverter.GetSignedStroke(remoteStream);
lanCanvas.ManualHandler.AddSignedStroke(stroke);
StrokeReceived(stroke);
}
public static SignedStroke GetSignedStroke(Stream source)
{
byte[] ownerBytes = new byte[OWNER_NAME_BYTES_ARRAY_LENGTH];
source.Read(ownerBytes, 0, ownerBytes.Length);
byte[] idBytes = new byte[sizeof(UInt32)];
source.Read(idBytes, 0, idBytes.Length);
DrawingAttributes attributes = GetDrawingAttributes(source);
StylusPointCollection points = new StylusPointCollection();
byte[] numberOfPointsBytes = new byte[sizeof(UInt32)];
source.Read(numberOfPointsBytes, 0, numberOfPointsBytes.Length);
int numberOfPoints = BitConverter.ToInt32(numberOfPointsBytes, 0);
for (int x = numberOfPoints; x != 0; x--)
{
points.Add(GetPoint(source));
}
SignedStroke stroke = new SignedStroke(points, attributes);
stroke.Owner = StringBitConverter.GetString(ownerBytes).Replace("\0", "");
stroke.Id = BitConverter.ToUInt32(idBytes, 0);
return(stroke);
}
public void SendStroke(SignedStroke stroke)
{
lock (stream)
{
sendBeginByte();
stream.WriteByte(Commands.CS_SEND_STROKE);
StrokeBitConverter.Serialize(stream, stroke);
}
}
public void RemoveStroke(SignedStroke stroke)
{
lock (stream)
{
sendBeginByte();
stream.WriteByte(Commands.CS_REMOVE_STROKE);
stream.Write(BitConverter.GetBytes(stroke.GetIdentifier()), 0, sizeof(long));
}
}
public void BeginDrawingStroke(StylusPoint beginning, DrawingAttributes attributes)
{
Drawing = true;
activePoints = new StylusPointCollection();
activePoints.Add(beginning);
actuallyDrawnStroke = new SignedStroke(activePoints, attributes.Clone());
actuallyDrawnStroke.Id = generator.GetNextId();
actuallyDrawnStroke.Owner = ownerName;
signedStrokes.Add(actuallyDrawnStroke);
}
private void receiveIdAndRemoveStroke()
{
byte[] idBuffer = new byte[sizeof(long)];
remoteStream.Read(idBuffer, 0, idBuffer.Length);
long id = BitConverter.ToInt64(idBuffer, 0);
SignedStroke removedStroke = lanCanvas.ManualHandler.RemoveSignedStrokeWithId(id);
StrokeRemoved(removedStroke);
}
public SignedPointerStroke(SignedStroke signed, int stayTime, int fadeTime)
: base(signed.StylusPoints, signed.DrawingAttributes)
{
Id = signed.Id;
Owner = signed.Owner;
StayTime = stayTime;
FadeTime = fadeTime;
initialize();
}
public void FinishDrawingStroke(StylusPoint endPoint)
{
if (Drawing)
{
activePoints.Add(endPoint);
StrokeDrawn(actuallyDrawnStroke);
Drawing = false;
activePoints = null;
actuallyDrawnStroke = null;
}
else
{
throw new NotSupportedException("Not drawing a stroke. Failed to finish the drawing.");
}
}
public static SignedPointerStroke GetSignedPointerStroke(Stream source)
{
byte[] stayTimeBytes = new byte[sizeof(Int32)];
source.Read(stayTimeBytes, 0, stayTimeBytes.Length);
int stayTime = BitConverter.ToInt32(stayTimeBytes, 0);
byte[] fadeTimeBytes = new byte[sizeof(Int32)];
source.Read(fadeTimeBytes, 0, fadeTimeBytes.Length);
int fadeTime = BitConverter.ToInt32(stayTimeBytes, 0);
SignedStroke signed = GetSignedStroke(source);
SignedPointerStroke stroke = new SignedPointerStroke(signed, stayTime, fadeTime);
return(stroke);
}
public static void Serialize(Stream target, SignedStroke stroke)
{
byte[] ownerBytes = StringBitConverter.GetBytes(stroke.Owner, OWNER_NAME_BYTES_ARRAY_LENGTH);
target.Write(ownerBytes, 0, ownerBytes.Length);
target.Write(BitConverter.GetBytes(stroke.Id), 0, sizeof(Int32));
Serialize(target, stroke.DrawingAttributes);
StylusPointCollection points = stroke.StylusPoints;
target.Write(BitConverter.GetBytes(points.Count), 0, sizeof(Int32));
foreach (StylusPoint point in points)
{
Serialize(target, point);
}
}
public Fader(SignedStroke stroke, int fadeTime)
{
FadeTime = fadeTime;
this.stroke = stroke;
}
public void RemoveSignedStroke(SignedStroke stroke)
{
canvas.Dispatcher.Invoke(new Action(() => canvas.Strokes.Remove(stroke)));
}
public void AddSignedStroke(SignedStroke signed)
{
canvas.Dispatcher.Invoke(new Action(() => canvas.Strokes.Add(signed)));
}
private void drawer_StrokeDrawn(SignedStroke obj)
{
StrokeCollected(obj);
}
private void eraser_StrokeErased(SignedStroke obj)
{
StrokeRemoved(obj);
}
public void SendSignedStroke(SignedStroke signed)
{
painterSender.SendStroke(signed);
}
public void RemoveSignedStroke(SignedStroke signed)
{
painterSender.RemoveStroke(signed);
}