public bool UnPack(byte[] pack)
{
if (pack == null || pack.Length < 48)
{
return(false);
}
int ptr = 8;
CliendID = BytePacketReader.ReadLong(pack, ref ptr);
PictureBoxID = BytePacketReader.ReadLong(pack, ref ptr);
Line = new BrushLineObject();
byte cR = BytePacketReader.ReadByte(pack, ref ptr);
byte cG = BytePacketReader.ReadByte(pack, ref ptr);
byte cB = BytePacketReader.ReadByte(pack, ref ptr);
byte cA = BytePacketReader.ReadByte(pack, ref ptr);
Line.BrushColor = Color.FromArgb(cA, cR, cG, cB);
Line.BrushSize = BytePacketReader.ReadInt(pack, ref ptr);
Line.LineStartX = BytePacketReader.ReadInt(pack, ref ptr);
Line.LineStartY = BytePacketReader.ReadInt(pack, ref ptr);
Line.LineEndX = BytePacketReader.ReadInt(pack, ref ptr);
Line.LineEndY = BytePacketReader.ReadInt(pack, ref ptr);
return(true);
}
public DrawObject GetDrawObject(int pX, int pY)
{
BrushLineObject line = new BrushLineObject();
line.Picture = _picture;
line.BrushColor = _color;
line.BrushSize = _brushSize;
if (_startX == null)
{
_startX = pX;
}
if (_startY == null)
{
_startY = pY;
}
int endX = pX; int endY = pY;
line.LineStartX = _startX ?? endX;
line.LineStartY = _startY ?? endY;
line.LineEndX = endX;
line.LineEndY = endY;
_startX = endX; _startY = endY;
return(line);
}
private void NCDrawByBrush(IConnector connection, ArgBrushObject arg)
{
BrushLineObject line = arg.Line;
if (arg.PictureBoxID == 0)
{
line.Picture = _canvas.BackPicture;
}
_canvas.AddDrawObject(arg.PictureBoxID, line);
AddCommandToSendClients(arg);
}
public ArgBrushObject(long clientID, long pictureBoxID, BrushLineObject line)
{
if (line == null)
{
throw new ArgumentNullException("line is null");
}
CliendID = clientID;
PictureBoxID = pictureBoxID;
Line = line;
}
private void NCDrawByBrush(IConnector connection, ArgBrushObject arg)
{
if (arg == null)
{
return;
}
BrushLineObject line = arg.Line;
if (arg.PictureBoxID == 0)
{
line.Picture = _canvas.BackPicture;
}
_canvas.AddDrawObject(arg.PictureBoxID, line);
}
private void SendDrawObject(DrawObject drObj)
{
if (drObj == null || drObj.Picture == null)
{
return;
}
long picBoxID = drObj.Picture.UniqueID; //canvas
ICommandArg arg = null;
if (drObj is BrushLineObject)
{
BrushLineObject line = drObj as BrushLineObject;
arg = new ArgBrushObject(_netClient.ClientID, picBoxID, line);
}
else if (drObj is LineObject)
{
LineObject line = drObj as LineObject;
arg = new ArgLineObject(_netClient.ClientID, picBoxID, line);
}
else if (drObj is RectObject)
{
RectObject rect = drObj as RectObject;
arg = new ArgRectObject(_netClient.ClientID, picBoxID, rect);
}
else if (drObj is EllipseObject)
{
EllipseObject ellipse = drObj as EllipseObject;
arg = new ArgEllipseObject(_netClient.ClientID, picBoxID, ellipse);
}
else if (drObj is MoveObject)
{
MoveObject move = drObj as MoveObject;
arg = new ArgMoveObject(_netClient.ClientID, picBoxID, move);
}
else if (drObj is SelectorObject)
{
SelectorObject selector = drObj as SelectorObject;
arg = new ArgSelectorCopyObject(_netClient.ClientID, picBoxID, selector);
}
if (arg != null && _netClient.Connector != null)
{
_netClient.Connector.SendCommand(arg);
}
}
public static void Draw(DrawObject drawObj)
{
BrushLineObject line = drawObj as BrushLineObject;
if (line == null || line.Picture == null || line.Picture.Image == null)
{
return;
}
if (line.Picture.Status != PictureBoxStatus.Canvas)
{
return;
}
using (Graphics gr = Graphics.FromImage(line.Picture.Image))
{
using (Pen pen = new Pen(new SolidBrush(line.BrushColor), line.BrushSize)){
gr.DrawLine(pen, new Point(line.LineStartX, line.LineStartY), new Point(line.LineEndX, line.LineEndY));
}
//чтобы не было разрывов между линиями
using (Brush br = new SolidBrush(line.BrushColor)){
gr.FillEllipse(br, line.LineEndX - line.BrushSize / 2, line.LineEndY - line.BrushSize / 2, line.BrushSize, line.BrushSize);
}
}
line.Picture.Invalidate();
}
