d7/db2/qqmlproperty_8h_source.html

// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only


#ifndef QQMLPROPERTY_H

#define QQMLPROPERTY_H


#include <QtCore/qstring.h>

#include <QtCore/qhashfunctions.h>

#include <QtQml/qtqmlglobal.h>

#include <QtCore/qmetaobject.h>

#include <QtQml/qqmlregistration.h>


QT_BEGIN_NAMESPACE


class QObject;

class QVariant;

class QQmlContext;

class QQmlEngine;


class QQmlPropertyPrivate;


class Q_QML_EXPORT QQmlProperty

{

    Q_GADGET

    QML_ANONYMOUS

    QML_ADDED_IN_VERSION(2, 15)


    Q_PROPERTY(QObject *object READ object CONSTANT FINAL)

    Q_PROPERTY(QString name READ name CONSTANT FINAL)

public:


    enum PropertyTypeCategory {

        InvalidCategory,

        List,

        Object,

        Normal

    };


    enum Type {

        Invalid,

        Property,

        SignalProperty

    };


    QQmlProperty();

    ~QQmlProperty();


    QQmlProperty(QObject *);

    QQmlProperty(QObject *, QQmlContext *);

    QQmlProperty(QObject *, QQmlEngine *);


    QQmlProperty(QObject *, const QString &);

    QQmlProperty(QObject *, const QString &, QQmlContext *);

    QQmlProperty(QObject *, const QString &, QQmlEngine *);


    QQmlProperty(const QQmlProperty &);

    QQmlProperty &operator=(const QQmlProperty &);


    QQmlProperty(QQmlProperty &&other) noexcept : d(std::exchange(other.d, nullptr)) {}

    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QQmlProperty)


    void swap(QQmlProperty &other) noexcept { qt_ptr_swap(d, other.d); }

    bool operator==(const QQmlProperty &) const;


    Type type() const;

    bool isValid() const;

    bool isProperty() const;

    bool isSignalProperty() const;


    int propertyType() const;

    QMetaType propertyMetaType() const;

    PropertyTypeCategory propertyTypeCategory() const;

    const char *propertyTypeName() const;


    QString name() const;


    QVariant read() const;

    static QVariant read(const QObject *, const QString &);

    static QVariant read(const QObject *, const QString &, QQmlContext *);

    static QVariant read(const QObject *, const QString &, QQmlEngine *);


    bool write(const QVariant &) const;

    static bool write(QObject *, const QString &, const QVariant &);

    static bool write(QObject *, const QString &, const QVariant &, QQmlContext *);

    static bool write(QObject *, const QString &, const QVariant &, QQmlEngine *);


    bool reset() const;


    bool hasNotifySignal() const;

    bool needsNotifySignal() const;

    bool connectNotifySignal(QObject *dest, const char *slot) const;

    bool connectNotifySignal(QObject *dest, int method) const;


    bool isWritable() const;

    bool isBindable() const;

    bool isDesignable() const;

    bool isResettable() const;

    QObject *object() const;


    int index() const;

    QMetaProperty property() const;

    QMetaMethod method() const;


private:

    friend class QQmlPropertyPrivate;

    QQmlPropertyPrivate *d = nullptr;

};


typedef QList<QQmlProperty> QQmlProperties;


inline size_t qHash (const QQmlProperty &key, size_t seed = 0)

{

    return qHashMulti(seed, key.object(), key.name());

}


Q_DECLARE_TYPEINFO(QQmlProperty, Q_RELOCATABLE_TYPE);


QT_END_NAMESPACE


#endif // QQMLPROPERTY_H

QMetaMethod
\inmodule QtCore
Definition qmetaobject.h:19

QMetaProperty
\inmodule QtCore
Definition qmetaobject.h:324

QMetaType
\inmodule QtCore
Definition qmetatype.h:341

QObject
\inmodule QtCore
Definition qobject.h:103

QQmlContext
The QQmlContext class defines a context within a QML engine.
Definition qqmlcontext.h:25

QQmlEngine
The QQmlEngine class provides an environment for instantiating QML components.
Definition qqmlengine.h:57

QQmlPropertyPrivate
Definition qqmlproperty_p.h:41

QQmlProperty
The QQmlProperty class abstracts accessing properties on objects created from QML.
Definition qqmlproperty.h:23

QQmlProperty::QQmlProperty
QQmlProperty()
Create an invalid QQmlProperty.

QQmlProperty::Property
@ Property
Definition qqmlproperty.h:40

QQmlProperty::Invalid
@ Invalid
Definition qqmlproperty.h:39

QQmlProperty::QQmlProperty
QQmlProperty(QQmlProperty &&other) noexcept
Definition qqmlproperty.h:58

QQmlProperty::PropertyTypeCategory
PropertyTypeCategory
This enum specifies a category of QML property.
Definition qqmlproperty.h:31

QQmlProperty::List
@ List
Definition qqmlproperty.h:33

QQmlProperty::Object
@ Object
Definition qqmlproperty.h:34

QQmlProperty::InvalidCategory
@ InvalidCategory
Definition qqmlproperty.h:32

QString
\macro QT_RESTRICTED_CAST_FROM_ASCII
Definition qstring.h:129

QVariant
\inmodule QtCore
Definition qvariant.h:65

QT_BEGIN_NAMESPACE
Combined button and popup list for selecting options.
Definition qstandardpaths_haiku.cpp:21

QT_END_NAMESPACE
Definition qsharedpointer.cpp:1590

void
DBusConnection const char DBusError DBusBusType DBusError return DBusConnection DBusHandleMessageFunction void DBusFreeFunction return DBusConnection return DBusConnection return const char DBusError return DBusConnection DBusMessage dbus_uint32_t return DBusConnection dbus_bool_t DBusConnection DBusAddWatchFunction DBusRemoveWatchFunction DBusWatchToggledFunction void DBusFreeFunction return DBusConnection DBusDispatchStatusFunction void DBusFreeFunction DBusTimeout return DBusTimeout return DBusWatch return DBusWatch unsigned int return DBusError const DBusError return const DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessageIter int const void return DBusMessageIter DBusMessageIter return DBusMessageIter void DBusMessageIter void int return DBusMessage DBusMessageIter return DBusMessageIter return DBusMessageIter DBusMessageIter const char const char const char const char return DBusMessage return DBusMessage const char return DBusMessage dbus_bool_t return DBusMessage dbus_uint32_t return DBusMessage void
Definition qdbus_symbols_p.h:409

method
DBusConnection const char DBusError DBusBusType DBusError return DBusConnection DBusHandleMessageFunction void DBusFreeFunction return DBusConnection return DBusConnection return const char DBusError return DBusConnection DBusMessage dbus_uint32_t return DBusConnection dbus_bool_t DBusConnection DBusAddWatchFunction DBusRemoveWatchFunction DBusWatchToggledFunction void DBusFreeFunction return DBusConnection DBusDispatchStatusFunction void DBusFreeFunction DBusTimeout return DBusTimeout return DBusWatch return DBusWatch unsigned int return DBusError const DBusError return const DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessage return DBusMessageIter int const void return DBusMessageIter DBusMessageIter return DBusMessageIter void DBusMessageIter void int return DBusMessage DBusMessageIter return DBusMessageIter return DBusMessageIter DBusMessageIter const char const char const char const char * method
Definition qdbus_symbols_p.h:356

qHashMulti
constexpr QtPrivate::QHashMultiReturnType< T... > qHashMulti(size_t seed, const T &... args) noexcept(std::conjunction_v< QtPrivate::QNothrowHashable< T >... >)
Definition qhashfunctions.h:322

key
GLuint64 key
Definition qopengles2ext.h:2268

index
GLuint index
[2]
Definition qopengles2ext.h:331

object
GLuint object
[3]
Definition qopengles2ext.h:1248

type
GLenum type
Definition qopengles2ext.h:150

name
GLuint name
Definition qopengles2ext.h:156

reset
GLboolean reset
Definition qopenglext.h:2748

QML_ANONYMOUS
#define QML_ANONYMOUS
Definition qqmlintegration.h:49

QML_ADDED_IN_VERSION
#define QML_ADDED_IN_VERSION(MAJOR, MINOR)
Definition qqmlintegration.h:100

QQmlProperties
QList< QQmlProperty > QQmlProperties
Definition qqmlproperty.h:107

qHash
size_t qHash(const QQmlProperty &key, size_t seed=0)
Definition qqmlproperty.h:109

seed
static Q_CONSTINIT QBasicAtomicInteger< unsigned > seed
Definition qrandom.cpp:196

operator==
bool operator==(const QRandomGenerator &rng1, const QRandomGenerator &rng2)
Definition qrandom.cpp:1220

QSSGRenderTextureTypeValue::Normal
@ Normal

qt_ptr_swap
constexpr void qt_ptr_swap(T *&lhs, T *&rhs) noexcept
Definition qswap.h:29

Q_PROPERTY
#define Q_PROPERTY(...)
Definition qtmetamacros.h:56

Q_GADGET
#define Q_GADGET
Definition qtmetamacros.h:154

Q_RELOCATABLE_TYPE
@ Q_RELOCATABLE_TYPE
Definition qtypeinfo.h:158

Q_DECLARE_TYPEINFO
#define Q_DECLARE_TYPEINFO(TYPE, FLAGS)
Definition qtypeinfo.h:180

read
ReturnedValue read(const char *data)
Definition qv4typedarray.cpp:101

property
const char property[13]
Definition qwizard.cpp:101

write
gzip write("uncompressed data")

d
double d
Definition src_corelib_text_qlocale.cpp:9

other
QSharedPointer< T > other(t)
[5]

swap
this swap(other)

Type
Definition moc.h:23