--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/util/qdeclarativepackage.cpp Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,195 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "private/qdeclarativepackage_p.h"
+
+#include <private/qobject_p.h>
+#include <private/qdeclarativeguard_p.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+ \qmlclass Package QDeclarativePackage
+ \brief Package provides a collection of named items
+
+ The Package class is currently used in conjunction with
+ VisualDataModel to enable delegates with a shared context
+ to be provided to multiple views.
+
+ Any item within a Package may be assigned a name via the
+ \e {Package.name} attached property.
+
+ The example below creates a Package containing two named items;
+ \e list and \e grid. The third element in the package is parented to whichever
+ delegate it should appear in. This allows an item to move
+ between views.
+
+ \snippet examples/declarative/modelviews/package/Delegate.qml 0
+
+ These named items are used as the delegates by the two views who
+ reference the special VisualDataModel.parts property to select
+ a model which provides the chosen delegate.
+
+ \snippet examples/declarative/modelviews/package/view.qml 0
+
+ \sa QtDeclarative
+*/
+
+
+class QDeclarativePackagePrivate : public QObjectPrivate
+{
+public:
+ QDeclarativePackagePrivate() {}
+
+ struct DataGuard : public QDeclarativeGuard<QObject>
+ {
+ DataGuard(QObject *obj, QList<DataGuard> *l) : list(l) { (QDeclarativeGuard<QObject>&)*this = obj; }
+ QList<DataGuard> *list;
+ void objectDestroyed(QObject *) {
+ // we assume priv will always be destroyed after objectDestroyed calls
+ list->removeOne(*this);
+ }
+ };
+
+ QList<DataGuard> dataList;
+ static void data_append(QDeclarativeListProperty<QObject> *prop, QObject *o) {
+ QList<DataGuard> *list = static_cast<QList<DataGuard> *>(prop->data);
+ list->append(DataGuard(o, list));
+ }
+ static void data_clear(QDeclarativeListProperty<QObject> *prop) {
+ QList<DataGuard> *list = static_cast<QList<DataGuard> *>(prop->data);
+ list->clear();
+ }
+ static QObject *data_at(QDeclarativeListProperty<QObject> *prop, int index) {
+ QList<DataGuard> *list = static_cast<QList<DataGuard> *>(prop->data);
+ return list->at(index);
+ }
+ static int data_count(QDeclarativeListProperty<QObject> *prop) {
+ QList<DataGuard> *list = static_cast<QList<DataGuard> *>(prop->data);
+ return list->count();
+ }
+};
+
+QHash<QObject *, QDeclarativePackageAttached *> QDeclarativePackageAttached::attached;
+
+QDeclarativePackageAttached::QDeclarativePackageAttached(QObject *parent)
+: QObject(parent)
+{
+ attached.insert(parent, this);
+}
+
+QDeclarativePackageAttached::~QDeclarativePackageAttached()
+{
+ attached.remove(parent());
+}
+
+QString QDeclarativePackageAttached::name() const
+{
+ return _name;
+}
+
+void QDeclarativePackageAttached::setName(const QString &n)
+{
+ _name = n;
+}
+
+QDeclarativePackage::QDeclarativePackage(QObject *parent)
+ : QObject(*(new QDeclarativePackagePrivate), parent)
+{
+}
+
+QDeclarativePackage::~QDeclarativePackage()
+{
+ Q_D(QDeclarativePackage);
+ for (int ii = 0; ii < d->dataList.count(); ++ii) {
+ QObject *obj = d->dataList.at(ii);
+ obj->setParent(this);
+ }
+}
+
+QDeclarativeListProperty<QObject> QDeclarativePackage::data()
+{
+ Q_D(QDeclarativePackage);
+ return QDeclarativeListProperty<QObject>(this, &d->dataList, QDeclarativePackagePrivate::data_append,
+ QDeclarativePackagePrivate::data_count,
+ QDeclarativePackagePrivate::data_at,
+ QDeclarativePackagePrivate::data_clear);
+}
+
+bool QDeclarativePackage::hasPart(const QString &name)
+{
+ Q_D(QDeclarativePackage);
+ for (int ii = 0; ii < d->dataList.count(); ++ii) {
+ QObject *obj = d->dataList.at(ii);
+ QDeclarativePackageAttached *a = QDeclarativePackageAttached::attached.value(obj);
+ if (a && a->name() == name)
+ return true;
+ }
+ return false;
+}
+
+QObject *QDeclarativePackage::part(const QString &name)
+{
+ Q_D(QDeclarativePackage);
+ if (name.isEmpty() && !d->dataList.isEmpty())
+ return d->dataList.at(0);
+
+ for (int ii = 0; ii < d->dataList.count(); ++ii) {
+ QObject *obj = d->dataList.at(ii);
+ QDeclarativePackageAttached *a = QDeclarativePackageAttached::attached.value(obj);
+ if (a && a->name() == name)
+ return obj;
+ }
+
+ if (name == QLatin1String("default") && !d->dataList.isEmpty())
+ return d->dataList.at(0);
+
+ return 0;
+}
+
+QDeclarativePackageAttached *QDeclarativePackage::qmlAttachedProperties(QObject *o)
+{
+ return new QDeclarativePackageAttached(o);
+}
+
+
+
+QT_END_NAMESPACE