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Diffstat (limited to 'src/declarative/qml/qdeclarativeprivate.h')
| -rw-r--r-- | src/declarative/qml/qdeclarativeprivate.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/declarative/qml/qdeclarativeprivate.h b/src/declarative/qml/qdeclarativeprivate.h new file mode 100644 index 0000000..c8a8c74 --- /dev/null +++ b/src/declarative/qml/qdeclarativeprivate.h @@ -0,0 +1,211 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDECLARATIVEPRIVATE_H +#define QDECLARATIVEPRIVATE_H + +#include <QtCore/qglobal.h> + +#ifndef Q_OS_WIN +#include <stdint.h> +#endif +#include <QtCore/qvariant.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +typedef QObject *(*QDeclarativeAttachedPropertiesFunc)(QObject *); + +//template<typename T> +//struct qml_hasAttached { static bool const value = false; }; + +template <typename TYPE> +class QDeclarativeTypeInfo +{ +public: + enum { + hasAttachedProperties = 0 + }; +}; + + +namespace QDeclarativePrivate +{ + template<typename T> + QObject *create() { return new T; } + + 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)((intptr_t)static_cast<To *>((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((From *)0))>::cast(); + } + }; + + template <typename T> + struct has_attachedPropertiesMember + { + static bool const value = QDeclarativeTypeInfo<T>::hasAttachedProperties; + }; + + template <typename T, bool hasMember> + class has_attachedPropertiesMethod + { + typedef int yes_type; + typedef char no_type; + + template<typename ReturnType> + static yes_type check(ReturnType *(*)(QObject *)); + static no_type check(...); + + public: + 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 QDeclarativeAttachedPropertiesFunc 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 QDeclarativeAttachedPropertiesFunc func() { + return &attachedProperties; + } + static inline const QMetaObject *metaObject() { + return attachedPropertiesMetaObject(&T::qmlAttachedProperties); + } + }; + + template<typename T> + inline QDeclarativeAttachedPropertiesFunc 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(); + } + + struct MetaTypeIds { + int typeId; + int listId; + }; + typedef QObject *(*CreateFunc)(QObject *); + + template<typename T> + struct CreateParent { + static QObject *create(QObject *other) { + return new T(other); + } + }; + + template<typename T> + struct CreateNoParent { + static QObject *create() { + return new T; + } + }; + + struct Q_DECLARATIVE_EXPORT InstanceType { + InstanceType(int); + }; + + template<typename T, int VMAJ, int VMIN> + struct Define { + static InstanceType instance; + }; + + template<typename T> + struct ExtCreate { + static QObject *create(QObject *other) { + return new T(other); + } + }; +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QDECLARATIVEPRIVATE_H |