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/****************************************************************************
**
** 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 QMLPRIVATE_H
#define QMLPRIVATE_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 *(*QmlAttachedPropertiesFunc)(QObject *);
//template<typename T>
//struct qml_hasAttached { static bool const value = false; };
template <typename TYPE>
class QmlTypeInfo
{
public:
enum {
hasAttachedProperties = 0
};
};
namespace QmlPrivate
{
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 = QmlTypeInfo<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 QmlAttachedPropertiesFunc 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 QmlAttachedPropertiesFunc func() {
return &attachedProperties;
}
static inline const QMetaObject *metaObject() {
return attachedPropertiesMetaObject(&T::qmlAttachedProperties);
}
};
template<typename T>
inline QmlAttachedPropertiesFunc 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 // QMLPRIVATE_H
|
