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Diffstat (limited to 'src/declarative/qml/qmllist.cpp')
| -rw-r--r-- | src/declarative/qml/qmllist.cpp | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/src/declarative/qml/qmllist.cpp b/src/declarative/qml/qmllist.cpp deleted file mode 100644 index 4cd2120..0000000 --- a/src/declarative/qml/qmllist.cpp +++ /dev/null @@ -1,312 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 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. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qmllist.h" -#include "qmllist_p.h" -#include "qmlengine_p.h" -#include "qmlmetaproperty_p.h" - -QT_BEGIN_NAMESPACE - -QmlListReferencePrivate::QmlListReferencePrivate() -: propertyType(-1), refCount(1) -{ -} - -QmlListReference QmlListReferencePrivate::init(const QmlListProperty<QObject> &prop, int propType, QmlEngine *engine) -{ - QmlListReference rv; - - if (!prop.object) return rv; - - QmlEnginePrivate *p = engine?QmlEnginePrivate::get(engine):0; - - int listType = p?p->listType(propType):QmlMetaType::listType(propType); - if (listType == -1) return rv; - - rv.d = new QmlListReferencePrivate; - rv.d->object = prop.object; - rv.d->elementType = p?p->rawMetaObjectForType(listType):QmlMetaType::qmlType(listType)->baseMetaObject(); - rv.d->property = prop; - rv.d->propertyType = propType; - - return rv; -} - -void QmlListReferencePrivate::addref() -{ - Q_ASSERT(refCount > 0); - ++refCount; -} - -void QmlListReferencePrivate::release() -{ - Q_ASSERT(refCount > 0); - --refCount; - if (!refCount) - delete this; -} - -QmlListReference::QmlListReference() -: d(0) -{ -} - -QmlListReference::QmlListReference(QObject *o, const char *property, QmlEngine *engine) -: d(0) -{ - if (!o || !property) return; - - QmlPropertyCache::Data local; - QmlPropertyCache::Data *data = QmlPropertyCache::property(engine, o, QLatin1String(property), local); - - if (!data || !(data->flags & QmlPropertyCache::Data::IsQList)) return; - - QmlEnginePrivate *p = engine?QmlEnginePrivate::get(engine):0; - - int listType = p?p->listType(data->propType):QmlMetaType::listType(data->propType); - if (listType == -1) return; - - d = new QmlListReferencePrivate; - d->object = o; - d->elementType = p?p->rawMetaObjectForType(listType):QmlMetaType::qmlType(listType)->baseMetaObject(); - d->propertyType = data->propType; - - void *args[] = { &d->property, 0 }; - QMetaObject::metacall(o, QMetaObject::ReadProperty, data->coreIndex, args); -} - -QmlListReference::QmlListReference(const QmlListReference &o) -: d(o.d) -{ - if (d) d->addref(); -} - -QmlListReference &QmlListReference::operator=(const QmlListReference &o) -{ - if (o.d) o.d->addref(); - if (d) d->release(); - d = o.d; - return *this; -} - -QmlListReference::~QmlListReference() -{ - if (d) d->release(); -} - -bool QmlListReference::isValid() const -{ - return d && d->object; -} - -QObject *QmlListReference::object() const -{ - if (isValid()) return d->object; - else return 0; -} - -const QMetaObject *QmlListReference::listElementType() const -{ - if (isValid()) return d->elementType; - else return 0; -} - -bool QmlListReference::canAppend() const -{ - return (isValid() && d->property.append); -} - -bool QmlListReference::canAt() const -{ - return (isValid() && d->property.at); -} - -bool QmlListReference::canClear() const -{ - return (isValid() && d->property.clear); -} - -bool QmlListReference::canCount() const -{ - return (isValid() && d->property.count); -} - -bool QmlListReference::append(QObject *o) const -{ - if (!canAppend()) return false; - - if (o && !QmlMetaPropertyPrivate::canConvert(o->metaObject(), d->elementType)) - return false; - - d->property.append(&d->property, o); - - return true; -} - -QObject *QmlListReference::at(int index) const -{ - if (!canAt()) return 0; - - return d->property.at(&d->property, index); -} - -bool QmlListReference::clear() const -{ - if (!canClear()) return false; - - d->property.clear(&d->property); - - return true; -} - -int QmlListReference::count() const -{ - if (!canCount()) return 0; - - return d->property.count(&d->property); -} - -/*! -\class QmlListProperty -\brief The QmlListProperty class allows applications to explose list-like -properties to QML. - -QML has many list properties, where more than one object value can be assigned. -The use of a list property from QML looks like this: - -\code -FruitBasket { - fruit: [ - Apple {}, - Orange{}, - Banana {} - ] -} -\endcode - -The QmlListProperty encapsulates a group of function pointers that represet the -set of actions QML can perform on the list - adding items, retrieving items and -clearing the list. In the future, additional operations may be supported. All -list properties must implement the append operation, but the rest are optional. - -To provide a list property, a C++ class must implement the operation callbacks, -and then return an appropriate QmlListProperty value from the property getter. -List properties should have no setter. In the example above, the Q_PROPERTY() -declarative will look like this: - -\code -Q_PROPERTY(QmlListProperty<Fruit> fruit READ fruit); -\endcode - -QML list properties are typesafe - in this case \c {Fruit} is a QObject type that -\c {Apple}, \c {Orange} and \c {Banana} all derive from. -*/ - -/*! -\fn QmlListProperty::QmlListProperty() -\internal -*/ - -/*! -\fn QmlListProperty::QmlListProperty(QObject *object, QList<T *> &list) - -Convenience constructor for making a QmlListProperty value from an existing -QList \a list. The \a list reference must remain valid for as long as \a object -exists. \a object must be provided. - -Generally this constructor should not be used in production code, as a -writable QList violates QML's memory management rules. However, this constructor -can very useful while prototyping. -*/ - -/*! -\fn QmlListProperty::QmlListProperty(QObject *object, void *data, AppendFunction append, - CountFunction count = 0, AtFunction at = 0, - ClearFunction clear = 0) - -Construct a QmlListProperty from a set of operation functions. An opaque \a data handle -may be passed which can be accessed from within the operation functions. The list property -remains valid while \a object exists. - -The \a append operation is compulsory and must be provided, while the \a count, \a at and -\a clear methods are optional. -*/ - -/*! -\typedef QmlListProperty::AppendFunction - -Synonym for \c {void (*)(QmlListProperty<T> *property, T *value)}. - -Append the \a value to the list \a property. -*/ - -/*! -\typedef QmlListProperty::CountFunction - -Synonym for \c {int (*)(QmlListProperty<T> *property)}. - -Return the number of elements in the list \a property. -*/ - -/*! -\fn bool QmlListProperty::operator==(const QmlListProperty &other) const - -Returns true if this QmlListProperty is equal to \a other, otherwise false. -*/ - -/*! -\typedef QmlListProperty::AtFunction - -Synonym for \c {T *(*)(QmlListProperty<T> *property, int index)}. - -Return the element at position \a index in the list \a property. -*/ - -/*! -\typedef QmlListProperty::ClearFunction - -Synonym for \c {void (*)(QmlListProperty<T> *property)}. - -Clear the list \a property. -*/ - -QT_END_NAMESPACE |