QGIManager Class Reference

#include <qgimanager.h>

Public Member Functions
	QGIManager (QGraphicsScene *)
virtual	~QGIManager ()
void	manage (QGraphicsItem *)
void	release (QGraphicsItem *)
void	manage (const QList< QGraphicsItem *> &)
void	release (const QList< QGraphicsItem *> &)
void	setDestroyQGIOnDelete (bool)
bool	manages (QGraphicsItem *) const

Private Member Functions
	QGIManager (const QGIManager &)

Private Attributes
QGraphicsScene *	scene
QHash< QGraphicsItem *, int >	qgi_manager
bool	destroy_qgi_on_delete

Detailed Description

This class provides a QGraphicsItem manager, which can delete QGraphicsItem as soon as there is no reference to them anymore.

Definition at line 27 of file qgimanager.h.

Constructor & Destructor Documentation

QGIManager() [1/2]

QGIManager::QGIManager

(

QGraphicsScene *

sc

)

Constructeur

Parameters

sc	QGraphicsScene a utiliser pour gerer au mieux les QGraphicsItem

Definition at line 24 of file qgimanager.cpp.

~QGIManager()

QGIManager::~QGIManager ( )

virtual

Destructeur Lors de sa destruction, le QGI Manager detruit les QGraphicsItem restants si ceux-ci n'appartiennent pas a la scene ; ce comportement peut etre change avec la methode setDestroyQGIOnDelete

See also

setDestroyQGIOnDelete

Definition at line 37 of file qgimanager.cpp.

References destroy_qgi_on_delete, qgi_manager, and scene.

QGIManager() [2/2]

QGIManager::QGIManager ( const QGIManager &  )

private

Member Function Documentation

manage() [1/2]

void QGIManager::manage

(

QGraphicsItem *

qgi

)

Demande au QGIManager de gerer un QGI

Parameters

qgi	QGraphicsItem a gerer

Definition at line 48 of file qgimanager.cpp.

References qgi_manager.

Referenced by DeleteQGraphicsItemCommand::DeleteQGraphicsItemCommand(), and manage().

manage() [2/2]

void QGIManager::manage

(

const QList< QGraphicsItem *> &

qgis

)

Demande au QGIManager de gerer plusieurs QGI

Parameters

qgis	QGraphicsItems a gerer

Definition at line 73 of file qgimanager.cpp.

References manage().

manages()

bool QGIManager::manages

(

QGraphicsItem *

qgi

)

const

Permet de savoir si ce QGIManager gere ou non un item donne

Parameters

qgi	QGraphicsItem dont il faut verifier la presence

Returns

true si l'item est gere, false sinon

Definition at line 101 of file qgimanager.cpp.

References qgi_manager.

release() [1/2]

void QGIManager::release

(

QGraphicsItem *

qgi

)

Indique au QGIManager qu'une reference vers un QGI a ete detruite S'il n'y a plus de references vers ce QGI et que celui-ci n'est pas present sur la scene de ce QGIManager, alors il sera detruit.

Parameters

qgi	QGraphicsItem a ne plus gerer

Definition at line 60 of file qgimanager.cpp.

References qgi_manager, and scene.

Referenced by release(), ElementScene::reset(), and DeleteQGraphicsItemCommand::~DeleteQGraphicsItemCommand().

release() [2/2]

void QGIManager::release

(

const QList< QGraphicsItem *> &

qgis

)

Indique au QGIManager que pour chaque QGI fourni, une reference vers celui-ci a ete detruite. S'il n'y a plus de references vers un QGI et que celui-ci n'est pas present sur la scene de ce QGIManager, alors il sera detruit.

Parameters

qgis	QGraphicsItems a ne plus gerer

Definition at line 84 of file qgimanager.cpp.

References release().

setDestroyQGIOnDelete()

void QGIManager::setDestroyQGIOnDelete

(

bool

b

)

Indique au QGIManager de detruire les QGraphicsItem restants lors de sa destruction si ceux-ci n'appartiennent pas a la scene

Definition at line 92 of file qgimanager.cpp.

References destroy_qgi_on_delete.

Member Data Documentation

destroy_qgi_on_delete

bool QGIManager::destroy_qgi_on_delete

private

Definition at line 39 of file qgimanager.h.

Referenced by setDestroyQGIOnDelete(), and ~QGIManager().

qgi_manager

QHash<QGraphicsItem *, int> QGIManager::qgi_manager

private

Definition at line 38 of file qgimanager.h.

Referenced by manage(), manages(), release(), and ~QGIManager().

scene

QGraphicsScene* QGIManager::scene

private

Definition at line 37 of file qgimanager.h.

Referenced by release(), and ~QGIManager().

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

• qgimanager.h
• qgimanager.cpp