/// <summary>
/// Stores element in the undo/redo buffer
/// </summary>
/// <param name="operation">Operation that will be save for the element</param>
/// <param name="element">Element to be buffered</param>
public void StoreInBuffer(BufferOperation operation, ShapeElement element)
{
UndoElement UndoElement = new UndoElement(element, operation);
this.undoManager.AddItem(UndoElement);
element.UndoShape = element.Copy();
}
/// <summary>
/// Envia dados de forma assíncrona
/// </summary>
/// <param name="packet"></param>
public void AsyncSend(byte[] packet)
{
try
{
// cria o cabeçalho
byte[] header = CreateHeader(packet);
// combina o corpo do pacote com o cabeçalho
byte[] finalPacket = BufferOperation.Combine(header, packet);
asyncState.Socket.BeginSend(finalPacket, 0, finalPacket.Length, SocketFlags.None, AsyncSend, this);
// espera a sinalização de que os dados foram transmitidos ou aguarda 1 segundo
manualReset.WaitOne(1000);
}
catch (SocketException ex)
{
if (ex.SocketErrorCode != SocketError.Disconnecting &&
ex.SocketErrorCode != SocketError.NotConnected &&
ex.SocketErrorCode != SocketError.ConnectionReset &&
ex.SocketErrorCode != SocketError.ConnectionAborted &&
ex.SocketErrorCode != SocketError.Shutdown)
{
Debug.WriteLine(ex);
}
}
}
/// <summary>
/// Buffer element class that is used for buffering actions for undoing/redoing
/// </summary>
/// <param name="currentShape">Current shape</param>
/// <param name="operation">Opertion</param>
public UndoElement(ShapeElement currentShape, BufferOperation operation)
{
this.currentShape = currentShape;
if (currentShape.UndoShape != null)
{
this.oldShape = currentShape.UndoShape.Copy();
}
this.newShape = currentShape.Copy();
this.operation = operation;
}
/// <summary>
/// Envia dados
/// </summary>
/// <param name="packet"></param>
public void Send(byte[] packet)
{
try
{
// cria o cabeçalho
byte[] header = CreateHeader(packet);
// combina o corpo do pacote com o cabeçalho
byte[] finalPacket = BufferOperation.Combine(header, packet);
asyncState.Socket.Send(finalPacket);
}
catch (SocketException ex)
{
if (ex.SocketErrorCode != SocketError.Disconnecting &&
ex.SocketErrorCode != SocketError.NotConnected &&
ex.SocketErrorCode != SocketError.ConnectionReset &&
ex.SocketErrorCode != SocketError.ConnectionAborted &&
ex.SocketErrorCode != SocketError.Shutdown)
{
Debug.WriteLine(ex);
}
}
}
private static extern void BufferVertextList([In] ref Clip_vertex_list vtx_list,
[In] double distance,
[In] BufferOperation buffer_op,
[In, Out] ref Clip_polygon result_polygon);
