public int getColumn(mxCellState state, boolean isSource)
	{
		if (state != null)
		{
			if (isSource)
			{
				return mxUtils.getInt(state.getStyle(), "sourceRow", -1);
			}
			else
			{
				return mxUtils.getInt(state.getStyle(), "targetRow", -1);
			}
		}

		return -1;
	}