public bool IsValidConnection(Point location, ParamIOGate self)
{
foreach (UIElement ele in ParamCanvas.GetElementsInCanvasCoordinates(location))
{
if (ele is ParamIOGate)
if ((ele as ParamIOGate) != self)
return true;
}
return false;
}
public void UpdateInboundParam(Point inboundLocation, ParamIOGate paramGate)
{
ParameterConnection line = paramGate.ConnectionLine;
try
{
Point outboundLocation = new Point(line.Connection.X1, line.Connection.Y1);
ParamInputModel inboundModel = GetParamModelByCoord(inboundLocation) as ParamInputModel;
if (inboundModel.Value != null)
{
UndoLineDrawing(paramGate);
throw new Exception
("This parameter has already got a data source. You can only have one data source," +
"try removing its data source before connecting again.");
}
ParameterModel outboundModel = GetParamModelByCoord(outboundLocation) as ParameterModel;
inboundModel.Value = new ParamBinder(outboundModel.ParentName, outboundModel.Name);
source = inboundModel; //keep a copy of the source for easy alteration of value
line.LineDeletionEvent += new ParameterConnection.ParamConnectionEventHandler(line_LineDeletionEvent);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void UndoLineDrawing(ParamIOGate paramGate)
{
paramGate.ConnectionLine.DeleteLine();
paramGate.ConnectionLine = null;
DestroyOutputLine();//destroy any previous drawn lines
}