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Diffstat (limited to 'src/qml/qml/qqmlprivate.h')
| -rw-r--r-- | src/qml/qml/qqmlprivate.h | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/src/qml/qml/qqmlprivate.h b/src/qml/qml/qqmlprivate.h new file mode 100644 index 0000000000..b4c6fc3a12 --- /dev/null +++ b/src/qml/qml/qqmlprivate.h @@ -0,0 +1,265 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQMLPRIVATE_H +#define QQMLPRIVATE_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QtQml/qtqmlglobal.h> + +#include <QtCore/qglobal.h> +#include <QtCore/qvariant.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + + +typedef QObject *(*QQmlAttachedPropertiesFunc)(QObject *); + +template <typename TYPE> +class QQmlTypeInfo +{ +public: + enum { + hasAttachedProperties = 0 + }; +}; + + +class QJSValue; +class QJSEngine; +class QQmlEngine; +class QQmlCustomParser; +namespace QQmlPrivate +{ + void Q_QML_EXPORT qdeclarativeelement_destructor(QObject *); + template<typename T> + class QQmlElement : public T + { + public: + virtual ~QQmlElement() { + QQmlPrivate::qdeclarativeelement_destructor(this); + } + }; + + template<typename T> + void createInto(void *memory) { new (memory) QQmlElement<T>; } + + template<typename T> + QObject *createParent(QObject *p) { return new T(p); } + + template<class From, class To, int N> + struct StaticCastSelectorClass + { + static inline int cast() { return -1; } + }; + + template<class From, class To> + struct StaticCastSelectorClass<From, To, sizeof(int)> + { + static inline int cast() { return int(reinterpret_cast<quintptr>(static_cast<To *>(reinterpret_cast<From *>(0x10000000)))) - 0x10000000; } + }; + + template<class From, class To> + struct StaticCastSelector + { + typedef int yes_type; + typedef char no_type; + + static yes_type check(To *); + static no_type check(...); + + static inline int cast() + { + return StaticCastSelectorClass<From, To, sizeof(check(reinterpret_cast<From *>(0)))>::cast(); + } + }; + + template <typename T> + struct has_attachedPropertiesMember + { + static bool const value = QQmlTypeInfo<T>::hasAttachedProperties; + }; + + template <typename T, bool hasMember> + class has_attachedPropertiesMethod + { + public: + typedef int yes_type; + typedef char no_type; + + template<typename ReturnType> + static yes_type check(ReturnType *(*)(QObject *)); + static no_type check(...); + + static bool const value = sizeof(check(&T::qmlAttachedProperties)) == sizeof(yes_type); + }; + + template <typename T> + class has_attachedPropertiesMethod<T, false> + { + public: + static bool const value = false; + }; + + template<typename T, int N> + class AttachedPropertySelector + { + public: + static inline QQmlAttachedPropertiesFunc func() { return 0; } + static inline const QMetaObject *metaObject() { return 0; } + }; + template<typename T> + class AttachedPropertySelector<T, 1> + { + static inline QObject *attachedProperties(QObject *obj) { + return T::qmlAttachedProperties(obj); + } + template<typename ReturnType> + static inline const QMetaObject *attachedPropertiesMetaObject(ReturnType *(*)(QObject *)) { + return &ReturnType::staticMetaObject; + } + public: + static inline QQmlAttachedPropertiesFunc func() { + return &attachedProperties; + } + static inline const QMetaObject *metaObject() { + return attachedPropertiesMetaObject(&T::qmlAttachedProperties); + } + }; + + template<typename T> + inline QQmlAttachedPropertiesFunc attachedPropertiesFunc() + { + return AttachedPropertySelector<T, has_attachedPropertiesMethod<T, has_attachedPropertiesMember<T>::value>::value>::func(); + } + + template<typename T> + inline const QMetaObject *attachedPropertiesMetaObject() + { + return AttachedPropertySelector<T, has_attachedPropertiesMethod<T, has_attachedPropertiesMember<T>::value>::value>::metaObject(); + } + + enum AutoParentResult { Parented, IncompatibleObject, IncompatibleParent }; + typedef AutoParentResult (*AutoParentFunction)(QObject *object, QObject *parent); + + struct RegisterType { + int version; + + int typeId; + int listId; + int objectSize; + void (*create)(void *); + QString noCreationReason; + + const char *uri; + int versionMajor; + int versionMinor; + const char *elementName; + const QMetaObject *metaObject; + + QQmlAttachedPropertiesFunc attachedPropertiesFunction; + const QMetaObject *attachedPropertiesMetaObject; + + int parserStatusCast; + int valueSourceCast; + int valueInterceptorCast; + + QObject *(*extensionObjectCreate)(QObject *); + const QMetaObject *extensionMetaObject; + + QQmlCustomParser *customParser; + int revision; + // If this is extended ensure "version" is bumped!!! + }; + + struct RegisterInterface { + int version; + + int typeId; + int listId; + + const char *iid; + }; + + struct RegisterAutoParent { + int version; + + AutoParentFunction function; + }; + + struct RegisterModuleApi { + int version; + + const char *uri; + int versionMajor; + int versionMinor; + + QJSValue (*scriptApi)(QQmlEngine *, QJSEngine *); + QObject *(*qobjectApi)(QQmlEngine *, QJSEngine *); + }; + + enum RegistrationType { + TypeRegistration = 0, + InterfaceRegistration = 1, + AutoParentRegistration = 2, + ModuleApiRegistration = 3 + }; + + int Q_QML_EXPORT qmlregister(RegistrationType, void *); +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QQMLPRIVATE_H |