QQmlFileSelector Class Reference

A class for applying a QFileSelector to QML file loading. More...

#include <qqmlfileselector.h>

Inheritance diagram for QQmlFileSelector:

Collaboration diagram for QQmlFileSelector:

Public Member Functions
	QQmlFileSelector (QQmlEngine *engine, QObject *parent=nullptr)
	Creates a new QQmlFileSelector with parent object parent, which includes its own QFileSelector.
	~QQmlFileSelector () override
	Destroys the QQmlFileSelector object.
QFileSelector *	selector () const noexcept
void	setSelector (QFileSelector *selector)
	Sets the QFileSelector instance for use by the QQmlFileSelector to selector.
void	setExtraSelectors (const QStringList &strings)
	Adds extra selectors contained in strings to the current QFileSelector being used.
Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.
virtual	~QObject ()
	Destroys the object, deleting all its child objects.
virtual bool	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.
virtual bool	eventFilter (QObject *watched, QEvent *event)
	Filters events if this object has been installed as an event filter for the watched object.
QString	objectName () const
Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.
void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
QBindable< QString >	bindableObjectName ()
bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false.
bool	isWindowType () const
	Returns true if the object is a window; otherwise returns false.
bool	isQuickItemType () const
	Returns true if the object is a QQuickItem; otherwise returns false.
bool	signalsBlocked () const noexcept
	Returns true if signals are blocked; otherwise returns false.
bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
QThread *	thread () const
	Returns the thread in which the object lives.
void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children.
int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
void	killTimer (int id)
	Kills the timer with timer identifier, id.
template<typename T >
T	findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
template<typename T >
QList< T >	findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
const QObjectList &	children () const
	Returns a list of child objects.
void	setParent (QObject *parent)
	Makes the object a child of parent.
void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.
void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
bool	disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const
bool	disconnect (const QObject *receiver, const char *member=nullptr) const
void	dumpObjectTree () const
	Dumps a tree of children to the debug output.
void	dumpObjectInfo () const
	Dumps information about signal connections, etc.
bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.
bool	setProperty (const char *name, QVariant &&value)
QVariant	property (const char *name) const
	Returns the value of the object's name property.
QList< QByteArray >	dynamicPropertyNames () const
QBindingStorage *	bindingStorage ()
const QBindingStorage *	bindingStorage () const
QObject *	parent () const
	Returns a pointer to the parent object.
bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe
Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.
Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe
static QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
static bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
	\threadsafe
static bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.
template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot)
template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero)
Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
int	senderSignalIndex () const
int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.
bool	isSignalConnected (const QMetaMethod &signal) const
virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.
virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.
virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	disconnectNotify (const QMetaMethod &signal)
	QObject (QObjectPrivate &dd, QObject *parent=nullptr)
Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr
Properties inherited from QObject
QString	objectName
	the name of this object
Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()
template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()
	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

A class for applying a QFileSelector to QML file loading.

Since

5.2 \inmodule QtQml

QQmlFileSelector will automatically apply a QFileSelector to qml file and asset paths.

It is used as follows:

QQmlEngine engine;
QQmlFileSelector* selector = new QQmlFileSelector(&engine);

Then you can swap out files like so:

main.qml
Component.qml
asset.png
+unix/Component.qml
+mac/asset.png

In this example, main.qml will normally use Component.qml for the Component type. However on a unix platform, the unix selector will be present and the +unix/Component.qml version will be used instead. Note that this acts like swapping out Component.qml with +unix/Component.qml, so when using Component.qml you should not need to alter any paths based on which version was selected.

For example, to pass the "asset.png" file path around you would refer to it just as "asset.png" in all of main.qml, Component.qml, and +linux/Component.qml. It will be replaced with +mac/asset.png on Mac platforms in all cases.

For a list of available selectors, see QFileSelector.

Your platform may also provide additional selectors for you to use. As specified by QFileSelector, directories used for selection must start with a '+' character, so you will not accidentally trigger this feature unless you have directories with such names inside your project.

If a new QQmlFileSelector is set on the engine, the old one will be replaced.

Definition at line 16 of file qqmlfileselector.h.

Constructor & Destructor Documentation

QQmlFileSelector()

QQmlFileSelector::QQmlFileSelector ( QQmlEngine *  engine, QObject *  parent = nullptr  )

explicit

Creates a new QQmlFileSelector with parent object parent, which includes its own QFileSelector.

engine is the QQmlEngine you wish to apply file selectors to. It will also take ownership of the QQmlFileSelector.

Definition at line 66 of file qqmlfileselector.cpp.

References d, and engine.

~QQmlFileSelector()

QQmlFileSelector::~QQmlFileSelector ( )

override

Destroys the QQmlFileSelector object.

Definition at line 77 of file qqmlfileselector.cpp.

References d.

Member Function Documentation

selector()

QFileSelector * QQmlFileSelector::selector ( ) const

noexcept

Since

5.7 Returns the QFileSelector instance used by the QQmlFileSelector.

Definition at line 90 of file qqmlfileselector.cpp.

References d.

Referenced by setSelector().

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setExtraSelectors()

void QQmlFileSelector::setExtraSelectors

(

const QStringList &

strings

)

Adds extra selectors contained in strings to the current QFileSelector being used.

Use this when extra selectors are all you need to avoid having to create your own QFileSelector instance.

Definition at line 138 of file qqmlfileselector.cpp.

References d.

Referenced by quick_test_main_with_setup().

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setSelector()

void QQmlFileSelector::setSelector

(

QFileSelector *

selector

)

Sets the QFileSelector instance for use by the QQmlFileSelector to selector.

QQmlFileSelector does not take ownership of the new QFileSelector. To reset QQmlFileSelector to use its internal QFileSelector instance, call setSelector(\nullptr).

Definition at line 116 of file qqmlfileselector.cpp.

References d, and selector().

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

• qtdeclarative/src/qml/qml/qqmlfileselector.h
• qtdeclarative/src/qml/qml/qqmlfileselector.cpp