private void GetSelectionRectangle(out int left, out int top, out int width, out int height)
{
left = _addingControlX;
top = _addingControlY;
width = _currentMouseX - _addingControlX;
height = _currentMouseY - _addingControlY;
if (_currentMouseX < _addingControlX)
{
left = _currentMouseX;
width = -width;
}
if (_currentMouseY < _addingControlY)
{
top = _currentMouseY;
height = -height;
}
}