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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 281 insertions, 0 deletions

diff --git a/src/declarative/util/qdeclarativelistmodel_p_p.h b/src/declarative/util/qdeclarativelistmodel_p_p.h
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+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QDECLARATIVELISTMODEL_P_P_H
+#define QDECLARATIVELISTMODEL_P_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "private/qdeclarativelistmodel_p.h"
+#include "private/qdeclarativeengine_p.h"
+#include "private/qdeclarativeopenmetaobject_p.h"
+#include "qdeclarative.h"
+
+#include <private/qscriptdeclarativeclass_p.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QDeclarativeOpenMetaObject;
+class QScriptEngine;
+class QDeclarativeListModelWorkerAgent;
+struct ModelNode;
+class FlatListScriptClass;
+class FlatNodeData;
+
+class FlatListModel
+{
+public:
+    FlatListModel(QDeclarativeListModel *base);
+    ~FlatListModel();
+
+    QVariant data(int index, int role) const;
+
+    QList<int> roles() const;
+    QString toString(int role) const;
+
+    int count() const;
+    void clear();
+    void remove(int index);
+    bool insert(int index, const QScriptValue&);
+    QScriptValue get(int index) const;
+    void set(int index, const QScriptValue&, QList<int> *roles);
+    void setProperty(int index, const QString& property, const QVariant& value, QList<int> *roles);
+    void move(int from, int to, int count);
+
+private:    
+    friend class QDeclarativeListModelWorkerAgent;
+    friend class QDeclarativeListModel;
+    friend class FlatListScriptClass;
+    friend class FlatNodeData;
+
+    bool addValue(const QScriptValue &value, QHash<int, QVariant> *row, QList<int> *roles);
+    void insertedNode(int index);
+    void removedNode(int index);
+    void moveNodes(int from, int to, int n);
+
+    QScriptEngine *m_scriptEngine;
+    QHash<int, QString> m_roles;
+    QHash<QString, int> m_strings;
+    QList<QHash<int, QVariant> > m_values;
+    QDeclarativeListModel *m_listModel;
+
+    FlatListScriptClass *m_scriptClass;
+    QList<FlatNodeData *> m_nodeData;
+    QDeclarativeListModelWorkerAgent *m_parentAgent;
+};
+
+
+/*
+    Created when get() is called on a FlatListModel. This allows changes to the
+    object returned by get() to be tracked, and passed onto the model.
+*/
+class FlatListScriptClass : public QScriptDeclarativeClass
+{
+public:
+    FlatListScriptClass(FlatListModel *model, QScriptEngine *seng);
+
+    Value property(Object *, const Identifier &);
+    void setProperty(Object *, const Identifier &name, const QScriptValue &);
+    QScriptClass::QueryFlags queryProperty(Object *, const Identifier &, QScriptClass::QueryFlags flags);
+    bool compare(Object *, Object *);
+
+private:
+    FlatListModel *m_model;
+};
+
+/*
+    FlatNodeData and FlatNodeObjectData allow objects returned by get() to still
+    point to the correct list index if move(), insert() or remove() are called.
+*/
+struct FlatNodeObjectData;
+class FlatNodeData
+{
+public:
+    FlatNodeData(int i)
+        : index(i) {}
+
+    ~FlatNodeData();
+
+    void addData(FlatNodeObjectData *data);
+    void removeData(FlatNodeObjectData *data);
+
+    int index;
+
+private:
+    QSet<FlatNodeObjectData*> objects;
+};
+
+struct FlatNodeObjectData : public QScriptDeclarativeClass::Object
+{
+    FlatNodeObjectData(FlatNodeData *data) : nodeData(data) {
+        nodeData->addData(this);
+    }
+
+    ~FlatNodeObjectData() {
+        if (nodeData)
+            nodeData->removeData(this);
+    }
+
+    FlatNodeData *nodeData;
+};
+
+
+
+class NestedListModel
+{
+public:
+    NestedListModel(QDeclarativeListModel *base);
+    ~NestedListModel();
+
+    QHash<int,QVariant> data(int index, const QList<int> &roles, bool *hasNested = 0) const;
+    QVariant data(int index, int role) const;
+
+    QList<int> roles() const;
+    QString toString(int role) const;
+
+    int count() const;
+    void clear();
+    void remove(int index);
+    bool insert(int index, const QScriptValue&);
+    QScriptValue get(int index) const;
+    void set(int index, const QScriptValue&, QList<int> *roles);
+    void setProperty(int index, const QString& property, const QVariant& value, QList<int> *roles);
+    void move(int from, int to, int count);
+
+    QVariant valueForNode(ModelNode *, bool *hasNested = 0) const;
+    void checkRoles() const;
+
+    ModelNode *_root;
+    bool m_ownsRoot;
+    QDeclarativeListModel *m_listModel;
+
+private:
+    friend struct ModelNode;
+    mutable QStringList roleStrings;
+    mutable bool _rolesOk;
+};
+
+
+class ModelNodeMetaObject;
+class ModelObject : public QObject
+{
+    Q_OBJECT
+public:
+    ModelObject(ModelNode *node, NestedListModel *model, QScriptEngine *seng);
+    void setValue(const QByteArray &name, const QVariant &val);
+    void setNodeUpdatesEnabled(bool enable);
+
+    NestedListModel *m_model;
+    ModelNode *m_node;
+
+private:
+    ModelNodeMetaObject *m_meta;
+};
+
+class ModelNodeMetaObject : public QDeclarativeOpenMetaObject
+{
+public:
+    ModelNodeMetaObject(QScriptEngine *seng, ModelObject *object);
+
+    bool m_enabled;
+
+protected:
+    void propertyWritten(int index);
+
+private:
+    QScriptEngine *m_seng;
+    ModelObject *m_obj;
+};
+
+
+/*
+    A ModelNode is created for each item in a NestedListModel.
+*/
+struct ModelNode
+{
+    ModelNode(NestedListModel *model);
+    ~ModelNode();
+
+    QList<QVariant> values;
+    QHash<QString, ModelNode *> properties;
+
+    void clear();
+
+    QDeclarativeListModel *model(const NestedListModel *model);
+    ModelObject *object(const NestedListModel *model);
+
+    bool setObjectValue(const QScriptValue& valuemap, bool writeToCache = true);
+    void setListValue(const QScriptValue& valuelist);
+    bool setProperty(const QString& prop, const QVariant& val);
+    void changedProperty(const QString &name) const;
+    void updateListIndexes();
+    static void dump(ModelNode *node, int ind);
+
+    QDeclarativeListModel *modelCache;
+    ModelObject *objectCache;
+    bool isArray;
+
+    NestedListModel *m_model;
+    int listIndex;  // only used for top-level nodes within a list
+};
+
+
+QT_END_NAMESPACE
+
+Q_DECLARE_METATYPE(ModelNode *)
+
+QT_END_HEADER
+
+#endif // QDECLARATIVELISTMODEL_P_P_H
+