A DtSortedList is a list of elements of arbitrary type. More...

Inheritance diagram for DtSortedList:

Collaboration diagram for DtSortedList:

Public Member Functions
	DtSortedList (DtSortOrder sortOrderVal=DtSortOrderAscending)
	Constructor.
virtual	~DtSortedList ()
	Destructor - does NOT free memory of data associated with the items.
	DtSortedList (const DtSortedList &orig)
	Copy constructor.
DtSortedList &	operator= (const DtSortedList &orig)
	Assignment operator.
virtual void	setSortOrder (DtSortOrder sortOrderValue)
	Set/Get sort order.
virtual DtSortOrder	sortOrder () const
virtual DtSortedListItem *	first () const
	Return first and last item on the list.
virtual DtSortedListItem *	last () const
unsigned	count () const
	Returns the number of elements in the list.
virtual bool	compareItems (const DtSortedListItem &firstItem, const DtSortedListItem &secondItem) const
	Compare the two items based on sort order and return true if first comes first in order to second.
virtual DtSortedListItem *	add (void *data)
	Add element to the list in sorted order.
virtual void *	remove (DtSortedListItem *item)
	Remove an element from the list.
virtual void	removeAll ()
	Calls remove for all elements in the list.
virtual DtSortedListItem *	itemLookup (void *data) const
	Returns the DtSortedListItem envelope object containing the indicated data element.
virtual void	reverseSortOrder ()
	Reverses sort order of list.
virtual void	printData (DtSortOrder order=DtSortOrderAscending)
	Print the list.
Protected Member Functions
virtual DtSortedListItem *	newItem (void *data)
	Create a new sorted list item envelope for the data to be inserted into the list.
virtual void	addToList (DtSortedListItem item, DtSortedListItem before)
	Add first item to the list before second.
virtual void	removeFromList (DtSortedListItem *item)
	Remove item from the list. Does NOT delete the data contained in item.
virtual void	reposition (DtSortedListItem *item)
	An item's data for sorting has changed. Reposition it within the list.
virtual void	repositionForward (DtSortedListItem item, DtSortedListItem positionItem)
	An item's data for sorting has changed.
virtual void	repositionBackward (DtSortedListItem item, DtSortedListItem positionItem)
	An item's data for sorting has changed.
virtual void	insertBefore (DtSortedListItem item, DtSortedListItem positionItem)
	Insert the first item before the second.
virtual void	insertAfter (DtSortedListItem item, DtSortedListItem positionItem)
	Insert the first item after the second.
Protected Attributes
DtSortedListItem *	myFirst
DtSortedListItem *	myLast
unsigned	myCount
DtSortOrder	mySortOrder

Detailed Description

A DtSortedList is a list of elements of arbitrary type.

Data elements are added to, and extracted from a DtSortedList as void*. DtSortedList encloses each element in a DtSortedListItem object. You can iterate through the elements in a DtSortedList like this Example:

 for (DtSortedListItem* item = list.first(); item; item = item->next())
 {
    void* dataElement = item->data();
 }

Constructor & Destructor Documentation

DtSortedList::DtSortedList ( DtSortOrder sortOrderVal = DtSortOrderAscending )

Constructor.

DtSortedList::~DtSortedList ( ) [virtual]

Destructor - does NOT free memory of data associated with the items.

It only frees the items.

References myFirst, DtSortedListItem::myNext, and NULL.

DtSortedList::DtSortedList ( const DtSortedList & orig )

Copy constructor.

Shallow copy. Copies the pointers you've added to the list, but not the items that are pointed to.

References add(), DtSortedListItem::data(), first(), DtSortedListItem::next(), and NULL.

Member Function Documentation

DtSortedListItem * DtSortedList::add ( void * data ) [virtual]

Add element to the list in sorted order.

Returns the DtSortedListItem envelope object that contains the new element.

Reimplemented in DtRetractInfoList, and DtRtiMsgQueue.

References addToList(), compareItems(), first(), newItem(), and DtSortedListItem::next().

Referenced by DtRetractInfoList::add(), DtSortedList(), and operator=().

void DtSortedList::addToList	(	DtSortedListItem *	item,
		DtSortedListItem *	before
	)		`[protected, virtual]`

Add first item to the list before second.

If second item is NULL, item is added to end of list.

References myCount, myFirst, myLast, DtSortedListItem::myNext, DtSortedListItem::myPrev, and NULL.

Referenced by add(), and reverseSortOrder().

bool DtSortedList::compareItems	(	const DtSortedListItem &	firstItem,
		const DtSortedListItem &	secondItem
	)		const `[inline, virtual]`

Compare the two items based on sort order and return true if first comes first in order to second.

References DtSortOrderAscending, and mySortOrder.

Referenced by add(), reposition(), repositionBackward(), and repositionForward().

unsigned DtSortedList::count ( ) const [inline]

Returns the number of elements in the list.

References myCount.

DtSortedListItem * DtSortedList::first ( ) const [inline, virtual]

Return first and last item on the list.

DtSortedListItem is an envelope for your data. The data can be obtained using DtSortedListItem::data().

References myFirst.

Referenced by add(), DtRtiMsgQueue::deleteAll(), DtRtiMsgQueue::deleteMsgs(), DtSortedList(), DtRetractInfoList::firstRetractItem(), operator=(), DtRtiMsgQueue::peekNextTsoMsg(), removeAll(), DtRtiMsgQueue::removeMsg(), DtRtiMsgQueue::removeNextTsoMsg(), reverseSortOrder(), and DtRetractInfoList::~DtRetractInfoList().

void DtSortedList::insertAfter	(	DtSortedListItem *	item,
		DtSortedListItem *	positionItem
	)		`[protected, virtual]`

Insert the first item after the second.

If second item is NULL, first item is placed at end of list.

References myCount, myFirst, myLast, DtSortedListItem::myNext, DtSortedListItem::myPrev, and NULL.

Referenced by repositionBackward(), and repositionForward().

void DtSortedList::insertBefore	(	DtSortedListItem *	item,
		DtSortedListItem *	positionItem
	)		`[protected, virtual]`

Insert the first item before the second.

If second item is NULL, first item is placed at beginning of list.

References myCount, myFirst, myLast, DtSortedListItem::myNext, DtSortedListItem::myPrev, and NULL.

Referenced by repositionBackward(), and repositionForward().

DtSortedListItem * DtSortedList::itemLookup ( void * data ) const [virtual]

Returns the DtSortedListItem envelope object containing the indicated data element.

References DtSortedListItem::data(), myFirst, and DtSortedListItem::myNext.

DtSortedListItem * DtSortedList::last ( ) const [inline, virtual]

References myLast.

Referenced by DtRetractInfoList::lastRetractItem(), and reverseSortOrder().

DtSortedListItem * DtSortedList::newItem ( void * data ) [protected, virtual]

Create a new sorted list item envelope for the data to be inserted into the list.

Reimplemented in DtRetractInfoList, and DtRtiMsgQueue.

Referenced by add().

DtSortedList & DtSortedList::operator= ( const DtSortedList & orig )

Assignment operator.

Shallow copy. Copies the pointers you've added to the list, but not the items that are pointed to. Old list items are removed from the list, and the elements they contain are not deleted.

References add(), DtSortedListItem::data(), first(), mySortOrder, DtSortedListItem::next(), NULL, and removeAll().

void DtSortedList::printData ( DtSortOrder order = DtSortOrderAscending ) [virtual]

Print the list.

References DtSortOrderAscending, myFirst, myLast, mySortOrder, DtSortedListItem::next(), DtSortedListItem::prev(), and DtSortedListItem::printData().

void * DtSortedList::remove ( DtSortedListItem * item ) [virtual]

Remove an element from the list.

Item is the envelope containing the data element you would like to remove. Note: remove does not free memory of data associated with the item. It only frees the item. The data is returned to the caller for deletion if required.

Reimplemented in DtRetractInfoList.

References DtSortedListItem::myData, NULL, and removeFromList().

void DtSortedList::removeAll ( ) [virtual]

Calls remove for all elements in the list.

It does NOT delete the data in the list. Merely removes the data from the list.

Reimplemented in DtRetractInfoList.

References first(), DtSortedListItem::next(), and NULL.

Referenced by operator=().

void DtSortedList::removeFromList ( DtSortedListItem * item ) [protected, virtual]

Remove item from the list. Does NOT delete the data contained in item.

References myCount, myFirst, myLast, DtSortedListItem::myNext, and DtSortedListItem::myPrev.

Referenced by remove(), repositionBackward(), and repositionForward().