QGVector Class Reference

The QGVector class is an internal class for implementing Qt collection classes. More...

#include <qgvector.h>

Inheritance diagram for QGVector:

Public Member Functions
QDataStream &	read (QDataStream &)
QDataStream &	write (QDataStream &) const
virtual int	compareItems (Item, Item)
Public Member Functions inherited from QCollection
bool	autoDelete () const
void	setAutoDelete (bool enable)

Protected Member Functions
	QGVector (uint size)
	QGVector (const QGVector &v)
QGVector &	operator= (const QGVector &v)
Item *	data () const
uint	size () const
uint	count () const
bool	insert (uint index, Item)
bool	remove (uint index)
Item	take (uint index)
void	clear ()
bool	resize (uint newsize)
bool	fill (Item, int flen)
void	sort ()
int	bsearch (Item) const
int	findRef (Item, uint index) const
int	find (Item, uint index) const
uint	containsRef (Item) const
uint	contains (Item) const
Item	at (uint index) const
bool	insertExpand (uint index, Item)
void	toList (QGList *) const
virtual QDataStream &	read (QDataStream &, Item &)
virtual QDataStream &	write (QDataStream &, Item) const
Protected Member Functions inherited from QCollection
	QCollection ()
	QCollection (const QCollection &)
virtual	~QCollection ()
virtual Item	newItem (Item)
virtual void	deleteItem (Item)

Friends
class	QGList

Additional Inherited Members
Public Types inherited from QCollection
typedef void *	Item
Protected Attributes inherited from QCollection
bool	del_item

Detailed Description

The QGVector class is an internal class for implementing Qt collection classes.

QGVector is a strictly internal class that acts as a base class for the QVector collection class.

QGVector has some virtual functions that may be reimplemented in subclasses to to customize behavior.

• compareItems() compares two collection/vector items.
• read() reads a collection/vector item from a QDataStream.
• write() writes a collection/vector item to a QDataStream.

Member Function Documentation

clear()

void QGVector::clear ( )

protectedvirtual

Removes all objects from the collection. The objects will be deleted if auto-delete has been enabled.

See also

setAutoDelete()

Implements QCollection.

Reimplemented in QVector< type >, and QVector< QList< IndexWord > >.

compareItems()

int QGVector::compareItems ( Item  d1, Item  d2  )

virtual

This virtual function compares two list items.

Returns:

• 0 if item1 == item2
• non-zero if item1 != item2

This function returns int rather than bool so that reimplementations can return one of three values and use it to sort by:

• 0 if item1 == item2
• > 0 (positive integer) if item1 > item2
• < 0 (negative integer) if item1 < item2

The QVector::sort() and QVector::bsearch() functions require that compareItems() is implemented as described here.

This function should not modify the vector because some const functions call compareItems().

count()

uint QGVector::count ( ) const

inlineprotectedvirtual

Returns the number of objects in the collection.

Implements QCollection.

Reimplemented in QVector< type >, and QVector< QList< IndexWord > >.

read()

QDataStream & QGVector::read ( QDataStream &  s, Item &  d  )

protectedvirtual

Reads a collection/vector item from the stream s and returns a reference to the stream.

The default implementation sets item to 0.

See also

write()

write()

QDataStream & QGVector::write ( QDataStream &  s, Item    ) const

protectedvirtual

Writes a collection/vector item to the stream s and returns a reference to the stream.

The default implementation does nothing.

See also

read()

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The documentation for this class was generated from the following files:

• qtools/qgvector.h
• qtools/qgvector.cpp