public static void Draw(DrawObject drawObj)
{
LineObject line = drawObj as LineObject;
if (line == null || line.Picture == null)
{
return;
}
line.Picture.Width = line.SizeX;
line.Picture.Height = line.SizeY;
line.Picture.Location = new Point(line.LocationX, line.LocationY);
Bitmap bm = new Bitmap(line.SizeX <= 0 ? 1 : line.SizeX, line.SizeY <= 0 ? 1 : line.SizeY);
using (Graphics gr = Graphics.FromImage(bm)){
gr.FillRectangle(new SolidBrush(Color.Transparent), new Rectangle(0, 0, bm.Width, bm.Height));
if ((PictureBoxStatus.IsDrawable & line.Picture.Status) == PictureBoxStatus.IsDrawable)
{
using (Pen pen = new Pen(new SolidBrush(line.BrushColor), line.BrushSize))
{
gr.DrawLine(pen, new Point(line.LinePoint1X, line.LinePoint1Y), new Point(line.LinePoint2X, line.LinePoint2Y));
}
}
}
line.Picture.Image = bm;
line.Picture.Invalidate();
}
public bool UnPack(byte[] pack)
{
if (pack == null || pack.Length < 64)
{
return(false);
}
int ptr = 8;
CliendID = BytePacketReader.ReadLong(pack, ref ptr);
PictureBoxID = BytePacketReader.ReadLong(pack, ref ptr);
Line = new LineObject();
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.SizeX = BytePacketReader.ReadInt(pack, ref ptr);
Line.SizeY = BytePacketReader.ReadInt(pack, ref ptr);
Line.LocationX = BytePacketReader.ReadInt(pack, ref ptr);
Line.LocationY = BytePacketReader.ReadInt(pack, ref ptr);
Line.LinePoint1X = BytePacketReader.ReadInt(pack, ref ptr);
Line.LinePoint1Y = BytePacketReader.ReadInt(pack, ref ptr);
Line.LinePoint2X = BytePacketReader.ReadInt(pack, ref ptr);
Line.LinePoint2Y = BytePacketReader.ReadInt(pack, ref ptr);
return(true);
}
private void NCDrawByLine(IConnector connection, ArgLineObject arg)
{
if (arg == null || arg.PictureBoxID == 0)
{
return;
}
LineObject line = arg.Line;
line.Picture = _canvas.GetEditablePictureBox(arg.PictureBoxID);
_canvas.AddDrawObject(arg.PictureBoxID, line);
}
public ArgLineObject(long clientID, long pictureID, LineObject line)
{
if (line == null)
{
throw new ArgumentNullException("line is null");
}
CliendID = clientID;
PictureBoxID = pictureID;
Line = 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);
}
}
private void NCDrawByLine(IConnector connection, ArgLineObject arg)
{
if (arg.PictureBoxID == 0)
{
return;
}
long assocID = GetPictureBoxAssociationID(arg.PictureBoxID);
if (assocID == 0)
{
return;
}
arg.PictureBoxID = assocID;
LineObject line = arg.Line;
line.Picture = _canvas.GetEditablePictureBox(arg.PictureBoxID);
_canvas.AddDrawObject(arg.PictureBoxID, line);
AddCommandToSendClients(arg);
}
public DrawObject GetDrawObject(int pX, int pY)
{
LineObject line = new LineObject();
line.Picture = _picture;
line.BrushColor = _color;
line.BrushSize = _brushSize;
line.SizeX = Math.Abs(pX - _startX); if (line.SizeX < line.BrushSize)
{
line.SizeX = line.BrushSize;
}
line.SizeY = Math.Abs(pY - _startY); if (line.SizeY < line.BrushSize)
{
line.SizeY = line.BrushSize;
}
int LocationX = pX < _startX ? pX : _startX;
line.LocationX = line.SizeX == line.BrushSize ? LocationX - line.BrushSize / 2 : LocationX;
int LocationY = pY < _startY ? pY : _startY;
line.LocationY = line.SizeY == line.BrushSize ? LocationY - line.BrushSize / 2 : LocationY;
Point p1 = _picture.PointToScreen(new Point(_startX - LocationX, _startY - LocationY));
Point linePoint1 = _picture.PointToClient(p1);
Point p2 = _picture.PointToScreen(new Point(pX - LocationX, pY - LocationY));
Point linePoint2 = _picture.PointToClient(p2);
line.LinePoint1X = linePoint1.X;
line.LinePoint1Y = linePoint1.Y;
line.LinePoint2X = linePoint2.X;
line.LinePoint2Y = linePoint2.Y;
return(line);
}
