Say hello to QtQuick module

This change moves the QtQuick 2 types and C++ API (including
SceneGraph) to a new module (AKA library), QtQuick.

99% of this change is moving files from src/declarative to
src/quick, and from tests/auto/declarative to
tests/auto/qtquick2.

The loading of QtQuick 2 ("import QtQuick 2.0") is now delegated to
a plugin, src/imports/qtquick2, just like it's done for QtQuick 1.

All tools, examples, and tests that use QtQuick C++ API have gotten
"QT += quick" or "QT += quick-private" added to their .pro file.

A few additional internal QtDeclarative classes had to be exported
(via Q_DECLARATIVE_PRIVATE_EXPORT) since they're needed by the
QtQuick 2 implementation.

The old header locations (e.g. QtDeclarative/qquickitem.h) will
still be supported for some time, but will produce compile-time
warnings. (To avoid the QtQuick implementation using the
compatibility headers (since QtDeclarative's includepath comes
first), a few include statements were modified, e.g. from
"#include <qsgnode.h>" to "#include <QtQuick/qsgnode.h>".)

There's a change in qtbase that automatically adds QtQuick to the
module list if QtDeclarative is used. Together with the compatibility
headers, this should help reduce the migration pain for existing
projects.

In theory, simply getting an existing QtDeclarative-based project
to compile and link shouldn't require any changes for now -- but
porting to the new scheme is of course recommended, and will
eventually become mandatory.

Task-number: QTBUG-22889
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Change-Id: Ia52be9373172ba2f37e7623231ecb060316c96a7
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>

1 files changed, 202 insertions, 0 deletions

diff --git a/src/quick/util/qdeclarativepackage.cpp b/src/quick/util/qdeclarativepackage.cpp
new file mode 100644
index 0000000000..1d46574f02
--- /dev/null
+++ b/src/quick/util/qdeclarativepackage.cpp
@@ -0,0 +1,202 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativepackage_p.h"
+
+#include <private/qobject_p.h>
+#include <private/qdeclarativeguard_p.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \qmlclass Package QDeclarativePackage
+    \inqmlmodule QtQuick 2
+    \ingroup qml-working-with-data
+    \brief Package provides a collection of named items.
+
+    The Package class is 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
+    \l{Package::name}{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 (the \l Rectangle) 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 \l{VisualDataModel::parts} property to select
+    a model which provides the chosen delegate.
+
+    \snippet examples/declarative/modelviews/package/view.qml 0
+
+    \sa {declarative/modelviews/package}{Package example}, {declarative/photoviewer}{Photo Viewer example}, QtDeclarative
+*/
+
+/*!
+    \qmlattachedproperty string QtQuick2::Package::name
+    This attached property holds the name of an item within a Package.
+*/
+
+
+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