/// <summary>
/// This updates the list, presuming that the number of items has not changed.
/// </summary>
void UpdateCurrentNormalOrder()
{
// if possible, we try to maintain the order in the list in which the items
// appear
if (0 == _currentStepItems)
{
return; // then there is nothing to do now
}
IPlotGroupStyle previousStyle = null;
IPlotGroupStyle style = null;
for (int i = 0; i < _currentStepItems; i++, previousStyle = style)
{
CheckableSelectableListNode node = _currentNormalStyles[i];
style = _doc.GetPlotGroupStyle((Type)node.Item);
if (previousStyle != null)
{
Type prevchildtype = _doc.GetChildTypeOf(previousStyle.GetType());
if (prevchildtype != null)
{
if (prevchildtype != style.GetType())
{
int pi = _currentNormalStyles.IndexOfObject(prevchildtype);
_currentNormalStyles.Exchange(i, pi);
}
continue;
}
}
Type parenttype = _doc.GetParentTypeOf(style.GetType());
if (parenttype != null &&
(previousStyle == null || previousStyle.GetType() != parenttype))
{
int pi = _currentNormalStyles.IndexOfObject(parenttype);
_currentNormalStyles.Exchange(i, pi);
}
}
UpdateCurrentNormalIndentation();
}