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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLPRIVATE_H
#define QMLPRIVATE_H
#include <QtCore/qglobal.h>
#ifndef Q_OS_WIN32
#include <stdint.h>
#endif
#include <QtCore/qvariant.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
typedef QObject *(*QmlAttachedPropertiesFunc)(QObject *);
namespace QmlPrivate
{
class ListInterface
{
public:
virtual ~ListInterface() {}
virtual int type() const = 0;
virtual void append(void *) = 0;
virtual void insert(int, void *) = 0;
virtual void removeAt(int) = 0;
virtual void at(int, void *) const = 0;
virtual int count() const = 0;
virtual void clear() = 0;
};
enum ListOp { Append, Set, Insert, Prepend, Length, FromObject,
Object, Create, Value, Clear };
template<typename T>
int list_op(ListOp op, int val,
const QVariant &vlist,
const QVariant &value,
void **out);
template<typename T>
int list_nocreate_op(ListOp op, int val,
const QVariant &vlist,
const QVariant &value,
void **out);
template<typename T>
int list_interface_op(ListOp op, int val,
const QVariant &vlist,
const QVariant &value,
void **out);
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)>
{
#ifndef Q_OS_SYMBIAN
static inline int cast() { return (int)((intptr_t)static_cast<To *>((From *)0x10000000)) - 0x10000000; }
#else
static inline int cast() { return (int)(static_cast<To *>((From *)0x10000000)) - 0x10000000; }
#endif
};
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, int N>
struct AttachedPropertySelector
{
static inline QmlAttachedPropertiesFunc func()
{
return 0;
}
};
template<typename T>
struct AttachedPropertySelector<T, 1>
{
static inline QmlAttachedPropertiesFunc func()
{
return &T::qmlAttachedProperties;
}
};
template < typename T >
class has_attachedProperties {
typedef int yes_type;
typedef char no_type;
template<typename S, QObject *(S::*)(QObject *)>
struct dummy {};
template<typename S, QObject *(S::*)(QObject *) const>
struct dummy_const {};
template<typename S, QObject *(*) (QObject *)>
struct dummy_static {};
template<typename S>
static no_type check(dummy<S, &S::qmlAttachedProperties> *);
template<typename S>
static no_type check(dummy_const<S, &S::qmlAttachedProperties> *);
template<typename S>
static yes_type check(dummy_static<S, &S::qmlAttachedProperties> *);
template<typename S>
static no_type check(...);
public:
static bool const value = sizeof(check<T>(0)) == sizeof(yes_type);
};
template<typename T>
inline QmlAttachedPropertiesFunc attachedPropertiesFunc()
{
return AttachedPropertySelector<T, has_attachedProperties<T>::value>::func();
}
struct MetaTypeIds {
int typeId;
int listId;
int qmlListId;
};
typedef int (*Func)(QmlPrivate::ListOp, int, const QVariant &, const QVariant &, void **);
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>
struct Define {
static InstanceType instance;
};
template<typename T>
struct ExtCreate {
static QObject *create(QObject *other) {
return new T(other);
}
};
};
template<typename T>
int QmlPrivate::list_op(QmlPrivate::ListOp op, int val,
const QVariant &vlist,
const QVariant &value,
void **out)
{
if (op == QmlPrivate::Create) {
QObject *obj = static_cast<QObject *>(new T);
*((QObject **)out) = obj;
return 0;
}
QList<T *> *list = vlist.value<QList<T *> *>();
switch(op) {
case QmlPrivate::Append:
list->append(value.value<T *>());
break;
case QmlPrivate::Set:
(*list)[val] = value.value<T *>();
break;
case QmlPrivate::Insert:
list->insert(val, value.value<T *>());
break;
case QmlPrivate::Prepend:
list->prepend(value.value<T *>());
break;
case QmlPrivate::Length:
return list->count();
break;
case QmlPrivate::Clear:
list->clear();
return 0;
break;
case QmlPrivate::Create:
break;
case QmlPrivate::Object:
*out = static_cast<QObject *>(value.value<T *>());
break;
case QmlPrivate::FromObject:
{
QObject *fromObj = value.value<QObject *>();
T *me = qobject_cast<T *>(fromObj);
if (me) {
*((QVariant *)*out) = QVariant::fromValue(me);
}
}
break;
case QmlPrivate::Value:
*((QVariant *)*out) = QVariant::fromValue(list->at(val));
break;
}
return 0;
}
template<typename T>
int QmlPrivate::list_nocreate_op(QmlPrivate::ListOp op, int val,
const QVariant &vlist,
const QVariant &value,
void **out)
{
QList<T *> *list = vlist.value<QList<T *> *>();
switch(op) {
case QmlPrivate::Append:
list->append(value.value<T *>());
break;
case QmlPrivate::Set:
(*list)[val] = value.value<T *>();
break;
case QmlPrivate::Insert:
list->insert(val, value.value<T *>());
break;
case QmlPrivate::Prepend:
list->prepend(value.value<T *>());
break;
case QmlPrivate::Length:
return list->count();
break;
case QmlPrivate::Clear:
list->clear();
return 0;
break;
case QmlPrivate::Create:
break;
case QmlPrivate::Object:
*out = static_cast<QObject *>(value.value<T *>());
break;
case QmlPrivate::FromObject:
{
QObject *fromObj = value.value<QObject *>();
T *me = qobject_cast<T *>(fromObj);
if (me) {
*((QVariant *)*out) = QVariant::fromValue(me);
}
}
break;
case QmlPrivate::Value:
*((QVariant *)*out) = QVariant::fromValue(list->at(val));
break;
}
return 0;
}
template<typename T>
int QmlPrivate::list_interface_op(QmlPrivate::ListOp op, int val,
const QVariant &vlist,
const QVariant &value,
void **out)
{
QList<T *> *list = vlist.value<QList<T *> *>();
switch(op) {
case QmlPrivate::Append:
list->append(value.value<T *>());
break;
case QmlPrivate::Set:
(*list)[val] = value.value<T *>();
break;
case QmlPrivate::Insert:
list->insert(val, value.value<T *>());
break;
case QmlPrivate::Prepend:
list->prepend(value.value<T *>());
break;
case QmlPrivate::Length:
return list->count();
break;
case QmlPrivate::Clear:
list->clear();
return 0;
break;
case QmlPrivate::Create:
break;
case QmlPrivate::Object:
break;
case QmlPrivate::FromObject:
break;
case QmlPrivate::Value:
*((QVariant *)*out) = QVariant::fromValue(list->at(val));
break;
}
return 0;
}
#endif // QMLPRIVATE_H
QT_END_NAMESPACE
QT_END_HEADER
|
