An non-const iterator which iterates throught the subjects of an Observer. More...

#include <SubjectIterator.h>

Inheritance diagram for Qtilities::Core::ConstSubjectIterator< T >:

Public Types
enum	ObserverIterationLevel { IterateChildren, IterateSiblings }
	The level to use when passing only an observer in your constructor. More...

Public Member Functions
	ConstSubjectIterator (const T subject, Observer observer=0, int iterator_id=-1)
	Default constructor.
	ConstSubjectIterator (const Observer observer, ObserverIterationLevel iteration_level, const Observer sibling_iteration_parent_observer=0, int iterator_id=-1)
	Observer based constructor.
const T *	current () const
	The current item in the context iterated through.
const T *	first ()
	The first item in the context iterated through.
const T *	last ()
	The last item in the context iterated through.
const T *	next ()
	The next item in the context iterated through.
const T *	previous ()
	The previous item in the context iterated through.
void	setCurrent (const T *current)
	Sets the current item in the context iterated through.
Public Member Functions inherited from Qtilities::Core::Interfaces::IConstIterator< T >
virtual bool	hasNext ()
	Indicates if a next item exists.
virtual bool	hasPrevious ()
	Indicates if a previous item exists.
virtual const T *	operator++ ()
	Prefix increment.
virtual const T *	operator++ (int x)
	Postfix increment.
virtual const T *	operator-- ()
	Prefix decrement.
virtual const T *	operator-- (int x)
	Postfix decrement.

Detailed Description

An non-const iterator which iterates throught the subjects of an Observer.

This class was added in Qtilities v1.0.

Member Enumeration Documentation

template<class T >

The level to use when passing only an observer in your constructor.

Enumerator:

IterateChildren	Iterate on the observer's children.
IterateSiblings	Iterate on the observer's siblings. In this case T must be a subclass of Observer.

template<class T >

Qtilities::Core::ConstSubjectIterator< T >::ConstSubjectIterator	(	const T *	subject,
		Observer *	observer = `0`,
		int	iterator_id = `-1`
	)

inline

Default constructor.

Parameters:

subject	The current subject where your iterator must start.
observer	This is an optional parameter which is needed when your subject is observed in multiple contexts. In that case, the observer must be specified in order to know which observer parent to use.
iterator_id	Internal iterator ID. You should never use this directly.

template<class T >

Qtilities::Core::ConstSubjectIterator< T >::ConstSubjectIterator	(	const Observer *	observer,
		ObserverIterationLevel	iteration_level,
		const Observer *	sibling_iteration_parent_observer = `0`,
		int	iterator_id = `-1`
	)

inline

Observer based constructor.

Parameters:

observer	The observer that must be used in cases where multiple subjects have multiple parents.
iteration_level	Indicates on which level the observer must be interated.
sibling_iteration_parent_observer	When interating over siblings of an obsever (iteration_level = IterateSiblings), *it is necessary to specify the parent of the siblings you are iterating when any of the siblings has multiple parents.
iterator_id	Internal iterator ID. You should never use this directly.