QtAbstractPropertyManager Class Reference

The QtAbstractPropertyManager provides an interface for property managers. More...

#include <qtpropertybrowser.h>

Inheritance diagram for QtAbstractPropertyManager:

Collaboration diagram for QtAbstractPropertyManager:

Signals
void	propertyChanged (QtProperty *property)
void	propertyDestroyed (QtProperty *property)
void	propertyInserted (QtProperty *property, QtProperty *parent, QtProperty *after)
void	propertyRemoved (QtProperty *property, QtProperty *parent)

Public Member Functions
QtProperty *	addProperty (const QString &name=QString())
void	clear () const
QSet< QtProperty * >	properties () const
	QtAbstractPropertyManager (QObject *parent=nullptr)
	~QtAbstractPropertyManager () override

Protected Member Functions
virtual QtProperty *	createProperty ()
virtual QString	displayText (const QtProperty *property) const
virtual EchoMode	echoMode (const QtProperty *) const
virtual bool	hasValue (const QtProperty *property) const
virtual void	initializeProperty (QtProperty *property)=0
virtual void	uninitializeProperty (QtProperty *property)
virtual QIcon	valueIcon (const QtProperty *property) const
virtual QString	valueText (const QtProperty *property) const

Private Attributes
QtAbstractPropertyManagerPrivate *	d_ptr

Friends
class	QtProperty

Detailed Description

The QtAbstractPropertyManager provides an interface for property managers.

A manager can create and manage properties of a given type, and is used in conjunction with the QtAbstractPropertyBrowser class.

When using a property browser widget, the properties are created and managed by implementations of the QtAbstractPropertyManager class. To ensure that the properties' values will be displayed using suitable editing widgets, the managers are associated with objects of QtAbstractEditorFactory subclasses. The property browser will use these associations to determine which factories it should use to create the preferred editing widgets.

The QtAbstractPropertyManager class provides common functionality like creating a property using the addProperty() function, and retrieving the properties created by the manager using the properties() function. The class also provides signals that are emitted when the manager's properties change: propertyInserted(), propertyRemoved(), propertyChanged() and propertyDestroyed().

QtAbstractPropertyManager subclasses are supposed to provide their own type specific API. Note that several ready-made implementations are available:

\list \o QtBoolPropertyManager \o QtColorPropertyManager \o QtDatePropertyManager \o QtDateTimePropertyManager \o QtDoublePropertyManager \o QtEnumPropertyManager \o QtFlagPropertyManager \o QtFontPropertyManager \o QtGroupPropertyManager \o QtIntPropertyManager \o QtPointPropertyManager \o QtRectPropertyManager \o QtSizePropertyManager \o QtSizePolicyPropertyManager \o QtStringPropertyManager \o QtTimePropertyManager \o QtVariantPropertyManager \endlist

See also

QtAbstractEditorFactoryBase, QtAbstractPropertyBrowser, QtProperty

Constructor & Destructor Documentation

QtAbstractPropertyManager()

QtAbstractPropertyManager::QtAbstractPropertyManager ( QObject *  parent = nullptr )

explicit

Creates an abstract property manager with the given parent.

References d_ptr, and QtAbstractPropertyManagerPrivate::q_ptr.

~QtAbstractPropertyManager()

QtAbstractPropertyManager::~QtAbstractPropertyManager ( )

override

Destroys the manager. All properties created by the manager are destroyed.

References clear(), and d_ptr.

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Member Function Documentation

addProperty()

QtProperty * QtAbstractPropertyManager::addProperty

(

const QString &

name = QString()

)

Creates a property with the given name which then is owned by this manager.

Internally, this function calls the createProperty() and initializeProperty() functions.

See also

initializeProperty(), properties()

References createProperty(), d_ptr, initializeProperty(), and QtAbstractPropertyManagerPrivate::m_properties.

Referenced by QtVariantPropertyManager::addProperty(), QtCursorEditorFactory::createEditor(), QtVariantPropertyManager::initializeProperty(), QtLocalePropertyManager::initializeProperty(), QtPointPropertyManager::initializeProperty(), QtPointFPropertyManager::initializeProperty(), QtSizePropertyManager::initializeProperty(), QtSizeFPropertyManager::initializeProperty(), QtRectPropertyManager::initializeProperty(), QtRectFPropertyManager::initializeProperty(), QtVector3DPropertyManager::initializeProperty(), QtSizePolicyPropertyManager::initializeProperty(), QtFontPropertyManager::initializeProperty(), QtColorPropertyManager::initializeProperty(), MainWindow::itemClicked(), main(), and QtFlagPropertyManager::setFlagNames().

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clear()

void QtAbstractPropertyManager::clear

(

)

const

Destroys all the properties that this manager has created.

See also

propertyDestroyed(), uninitializeProperty()

References properties().

Referenced by ~QtAbstractPropertyManager(), QtBoolPropertyManager::~QtBoolPropertyManager(), QtCharPropertyManager::~QtCharPropertyManager(), QtColorPropertyManager::~QtColorPropertyManager(), QtCursorPropertyManager::~QtCursorPropertyManager(), QtDatePropertyManager::~QtDatePropertyManager(), QtDateTimePropertyManager::~QtDateTimePropertyManager(), QtDoublePropertyManager::~QtDoublePropertyManager(), QtEnumPropertyManager::~QtEnumPropertyManager(), QtFlagPropertyManager::~QtFlagPropertyManager(), QtFontPropertyManager::~QtFontPropertyManager(), QtIntPropertyManager::~QtIntPropertyManager(), QtKeySequencePropertyManager::~QtKeySequencePropertyManager(), QtLocalePropertyManager::~QtLocalePropertyManager(), QtPointFPropertyManager::~QtPointFPropertyManager(), QtPointPropertyManager::~QtPointPropertyManager(), QtRectFPropertyManager::~QtRectFPropertyManager(), QtRectPropertyManager::~QtRectPropertyManager(), QtSizeFPropertyManager::~QtSizeFPropertyManager(), QtSizePolicyPropertyManager::~QtSizePolicyPropertyManager(), QtSizePropertyManager::~QtSizePropertyManager(), QtStringPropertyManager::~QtStringPropertyManager(), QtTimePropertyManager::~QtTimePropertyManager(), QtVariantPropertyManager::~QtVariantPropertyManager(), and QtVector3DPropertyManager::~QtVector3DPropertyManager().

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createProperty()

QtProperty * QtAbstractPropertyManager::createProperty ( )

protectedvirtual

Creates a property.

The base implementation produce QtProperty instances; Reimplement this function to make this manager produce objects of a QtProperty subclass.

See also

addProperty(), initializeProperty()

Reimplemented in QtVariantPropertyManager.

References QtProperty.

Referenced by addProperty().

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displayText()

QString QtAbstractPropertyManager::displayText ( const QtProperty *  property ) const

protectedvirtual

Returns a string representing the current state of the given property.

The default implementation of this function returns an empty string.

See also

QtProperty::valueText()

Reimplemented in QtStringPropertyManager.

Referenced by QtProperty::displayText().

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echoMode()

EchoMode QtAbstractPropertyManager::echoMode ( const QtProperty *  property ) const

protectedvirtual

Returns the echo mode representing the current state of the given property.

The default implementation of this function returns QLineEdit::Normal.

See also

QtProperty::valueText()

Reimplemented in QtStringPropertyManager.

hasValue()

bool QtAbstractPropertyManager::hasValue ( const QtProperty *  property ) const

protectedvirtual

Returns whether the given property has a value.

The default implementation of this function returns true.

See also

QtProperty::hasValue()

Reimplemented in QtVariantPropertyManager, and QtGroupPropertyManager.

Referenced by QtProperty::hasValue().

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initializeProperty()

void QtAbstractPropertyManager::initializeProperty ( QtProperty *  property )

protectedpure virtual

This function is called whenever a new valid property pointer has been created, passing the pointer as parameter.

The purpose is to let the manager know that the property has been created so that it can provide additional attributes for the new property, e.g. QtIntPropertyManager adds
{QtIntPropertyManager::value()}{value},
{QtIntPropertyManager::minimum()}{minimum} and
{QtIntPropertyManager::maximum()}{maximum} attributes. Since each manager subclass adds type specific attributes, this function is pure virtual and must be reimplemented when deriving from the QtAbstractPropertyManager class.

See also

addProperty(), createProperty()

Implemented in QtCursorPropertyManager, QtColorPropertyManager, QtFontPropertyManager, QtSizePolicyPropertyManager, QtFlagPropertyManager, QtEnumPropertyManager, QtVector3DPropertyManager, QtRectFPropertyManager, QtRectPropertyManager, QtSizeFPropertyManager, QtSizePropertyManager, QtPointFPropertyManager, QtPointPropertyManager, QtLocalePropertyManager, QtCharPropertyManager, QtKeySequencePropertyManager, QtDateTimePropertyManager, QtTimePropertyManager, QtDatePropertyManager, QtStringPropertyManager, QtDoublePropertyManager, QtVariantPropertyManager, QtBoolPropertyManager, QtIntPropertyManager, QtGroupPropertyManager, DecoratedDoublePropertyManager, and VariantManager.

Referenced by addProperty().

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properties()

QSet< QtProperty * > QtAbstractPropertyManager::properties

(

)

const

Returns the set of properties created by this manager.

See also

addProperty()

References d_ptr, and QtAbstractPropertyManagerPrivate::m_properties.

Referenced by clear().

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propertyChanged

void QtAbstractPropertyManager::propertyChanged ( QtProperty *  property )

signal

This signal is emitted whenever a property's data changes, passing a pointer to the property as parameter.

Note that signal is only emitted for properties that are created by this manager.

See also

QtAbstractPropertyBrowser::itemChanged()

Referenced by QtAbstractPropertyManagerPrivate::propertyChanged(), QtRectPropertyManager::setConstraint(), QtRectFPropertyManager::setConstraint(), QtStringPropertyManager::setEchoMode(), QtEnumPropertyManager::setEnumIcons(), QtEnumPropertyManager::setEnumNames(), QtFlagPropertyManager::setFlagNames(), QtIntPropertyManager::setMaximum(), QtDoublePropertyManager::setMaximum(), QtDatePropertyManager::setMaximum(), QtSizePropertyManager::setMaximum(), QtSizeFPropertyManager::setMaximum(), QtIntPropertyManager::setMinimum(), QtDoublePropertyManager::setMinimum(), QtDatePropertyManager::setMinimum(), QtSizePropertyManager::setMinimum(), QtSizeFPropertyManager::setMinimum(), QtIntPropertyManager::setRange(), QtDoublePropertyManager::setRange(), QtDatePropertyManager::setRange(), QtSizePropertyManager::setRange(), QtSizeFPropertyManager::setRange(), QtIntPropertyManager::setReadOnly(), QtDoublePropertyManager::setReadOnly(), QtStringPropertyManager::setReadOnly(), DecoratedDoublePropertyManager::setSuffix(), QtBoolPropertyManager::setTextVisible(), VariantManager::setValue(), QtIntPropertyManager::setValue(), QtBoolPropertyManager::setValue(), QtDoublePropertyManager::setValue(), QtStringPropertyManager::setValue(), QtDatePropertyManager::setValue(), QtTimePropertyManager::setValue(), QtDateTimePropertyManager::setValue(), QtKeySequencePropertyManager::setValue(), QtCharPropertyManager::setValue(), QtLocalePropertyManager::setValue(), QtPointPropertyManager::setValue(), QtPointFPropertyManager::setValue(), QtSizePropertyManager::setValue(), QtSizeFPropertyManager::setValue(), QtRectPropertyManager::setValue(), QtRectFPropertyManager::setValue(), QtVector3DPropertyManager::setValue(), QtEnumPropertyManager::setValue(), QtFlagPropertyManager::setValue(), QtSizePolicyPropertyManager::setValue(), QtFontPropertyManager::setValue(), QtColorPropertyManager::setValue(), QtCursorPropertyManager::setValue(), and QtVariantPropertyManagerPrivate::valueChanged().

propertyDestroyed

void QtAbstractPropertyManager::propertyDestroyed ( QtProperty *  property )

signal

This signal is emitted when the specified property is about to be destroyed.

Note that signal is only emitted for properties that are created by this manager.

See also

clear(), uninitializeProperty()

Referenced by QtAbstractPropertyManagerPrivate::propertyDestroyed(), QtColorPropertyManager::QtColorPropertyManager(), QtFlagPropertyManager::QtFlagPropertyManager(), QtFontPropertyManager::QtFontPropertyManager(), QtLocalePropertyManager::QtLocalePropertyManager(), QtPointFPropertyManager::QtPointFPropertyManager(), QtPointPropertyManager::QtPointPropertyManager(), QtRectFPropertyManager::QtRectFPropertyManager(), QtRectPropertyManager::QtRectPropertyManager(), QtSizeFPropertyManager::QtSizeFPropertyManager(), QtSizePolicyPropertyManager::QtSizePolicyPropertyManager(), QtSizePropertyManager::QtSizePropertyManager(), QtVector3DPropertyManager::QtVector3DPropertyManager(), and VariantManager::VariantManager().

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propertyInserted

void QtAbstractPropertyManager::propertyInserted ( QtProperty *  newProperty, QtProperty *  parentProperty, QtProperty *  precedingProperty  )

signal

This signal is emitted when a new subproperty is inserted into an existing property, passing pointers to the newProperty, parentProperty and precedingProperty as parameters.

If precedingProperty is 0, the newProperty was inserted at the beginning of the parentProperty's subproperties list.

Note that signal is emitted only if the parentProperty is created by this manager.

See also

QtAbstractPropertyBrowser::itemInserted()

Referenced by QtAbstractPropertyManagerPrivate::propertyInserted(), and QtVariantPropertyManager::QtVariantPropertyManager().

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propertyRemoved

void QtAbstractPropertyManager::propertyRemoved ( QtProperty *  property, QtProperty *  parent  )

signal

This signal is emitted when a subproperty is removed, passing pointers to the removed property and the parent property as parameters.

Note that signal is emitted only when the parent property is created by this manager.

See also

QtAbstractPropertyBrowser::itemRemoved()

Referenced by QtAbstractPropertyManagerPrivate::propertyRemoved(), and QtVariantPropertyManager::QtVariantPropertyManager().

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uninitializeProperty()

void QtAbstractPropertyManager::uninitializeProperty ( QtProperty *  property )

protectedvirtual

This function is called just before the specified property is destroyed.

The purpose is to let the property manager know that the property is being destroyed so that it can remove the property's additional attributes.

See also

clear(), propertyDestroyed()

Reimplemented in QtCursorPropertyManager, QtColorPropertyManager, QtFontPropertyManager, QtSizePolicyPropertyManager, QtFlagPropertyManager, QtEnumPropertyManager, QtVector3DPropertyManager, QtRectFPropertyManager, QtRectPropertyManager, QtSizeFPropertyManager, QtSizePropertyManager, QtPointFPropertyManager, QtPointPropertyManager, QtLocalePropertyManager, QtCharPropertyManager, QtKeySequencePropertyManager, QtDateTimePropertyManager, QtTimePropertyManager, QtDatePropertyManager, QtStringPropertyManager, QtDoublePropertyManager, QtVariantPropertyManager, QtBoolPropertyManager, QtIntPropertyManager, QtGroupPropertyManager, DecoratedDoublePropertyManager, and VariantManager.

Referenced by QtAbstractPropertyManagerPrivate::propertyDestroyed().

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valueIcon()

QIcon QtAbstractPropertyManager::valueIcon ( const QtProperty *  property ) const

protectedvirtual

Returns an icon representing the current state of the given property.

The default implementation of this function returns an invalid icon.

See also

QtProperty::valueIcon()

Reimplemented in QtCursorPropertyManager, QtColorPropertyManager, QtFontPropertyManager, QtEnumPropertyManager, QtVariantPropertyManager, and QtBoolPropertyManager.

Referenced by QtProperty::valueIcon().

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valueText()

QString QtAbstractPropertyManager::valueText ( const QtProperty *  property ) const

protectedvirtual

Returns a string representing the current state of the given property.

The default implementation of this function returns an empty string.

See also

QtProperty::valueText()

Reimplemented in QtCursorPropertyManager, QtColorPropertyManager, QtFontPropertyManager, QtSizePolicyPropertyManager, QtFlagPropertyManager, QtEnumPropertyManager, QtVector3DPropertyManager, QtRectFPropertyManager, QtRectPropertyManager, QtSizeFPropertyManager, QtSizePropertyManager, QtPointFPropertyManager, QtPointPropertyManager, QtLocalePropertyManager, QtCharPropertyManager, QtKeySequencePropertyManager, QtDateTimePropertyManager, QtTimePropertyManager, QtDatePropertyManager, QtStringPropertyManager, QtDoublePropertyManager, QtVariantPropertyManager, QtBoolPropertyManager, QtIntPropertyManager, DecoratedDoublePropertyManager, and VariantManager.

Referenced by QtProperty::valueText().

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Friends And Related Function Documentation

QtProperty

friend class QtProperty

friend

Referenced by createProperty().

Member Data Documentation

d_ptr

QtAbstractPropertyManagerPrivate* QtAbstractPropertyManager::d_ptr

private

Referenced by addProperty(), QtProperty::insertSubProperty(), properties(), QtProperty::propertyChanged(), QtAbstractPropertyManager(), QtProperty::removeSubProperty(), ~QtAbstractPropertyManager(), and QtProperty::~QtProperty().

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

• qtpropertybrowser.h
• qtpropertybrowser.cpp