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Diffstat (limited to 'src/declarative/util/qdeclarativelistmodelworkeragent_p.h')
-rw-r--r-- | src/declarative/util/qdeclarativelistmodelworkeragent_p.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/declarative/util/qdeclarativelistmodelworkeragent_p.h b/src/declarative/util/qdeclarativelistmodelworkeragent_p.h new file mode 100644 index 0000000000..4c800e9ad0 --- /dev/null +++ b/src/declarative/util/qdeclarativelistmodelworkeragent_p.h @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** 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 QDECLARATIVELISTMODELWORKERAGENT_P_H +#define QDECLARATIVELISTMODELWORKERAGENT_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 "qdeclarative.h" + +#include <QtScript/qscriptvalue.h> +#include <QtGui/qevent.h> +#include <QMutex> +#include <QWaitCondition> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +class QDeclarativeListModel; +class FlatListScriptClass; + +class QDeclarativeListModelWorkerAgent : public QObject +{ + Q_OBJECT + Q_PROPERTY(int count READ count) + +public: + QDeclarativeListModelWorkerAgent(QDeclarativeListModel *); + ~QDeclarativeListModelWorkerAgent(); + + void setScriptEngine(QScriptEngine *eng); + QScriptEngine *scriptEngine() const; + + void addref(); + void release(); + + int count() const; + + Q_INVOKABLE void clear(); + Q_INVOKABLE void remove(int index); + Q_INVOKABLE void append(const QScriptValue &); + Q_INVOKABLE void insert(int index, const QScriptValue&); + Q_INVOKABLE QScriptValue get(int index) const; + Q_INVOKABLE void set(int index, const QScriptValue &); + Q_INVOKABLE void setProperty(int index, const QString& property, const QVariant& value); + Q_INVOKABLE void move(int from, int to, int count); + Q_INVOKABLE void sync(); + + struct VariantRef + { + VariantRef() : a(0) {} + VariantRef(const VariantRef &r) : a(r.a) { if (a) a->addref(); } + VariantRef(QDeclarativeListModelWorkerAgent *_a) : a(_a) { if (a) a->addref(); } + ~VariantRef() { if (a) a->release(); } + + VariantRef &operator=(const VariantRef &o) { + if (o.a) o.a->addref(); + if (a) a->release(); a = o.a; + return *this; + } + + QDeclarativeListModelWorkerAgent *a; + }; +protected: + virtual bool event(QEvent *); + +private: + friend class QDeclarativeWorkerScriptEnginePrivate; + friend class FlatListScriptClass; + QScriptEngine *m_engine; + + struct Change { + enum { Inserted, Removed, Moved, Changed } type; + int index; // Inserted/Removed/Moved/Changed + int count; // Inserted/Removed/Moved/Changed + int to; // Moved + QList<int> roles; + }; + + struct Data { + QList<Change> changes; + + void clearChange(); + void insertChange(int index, int count); + void removeChange(int index, int count); + void moveChange(int index, int count, int to); + void changedChange(int index, int count, const QList<int> &roles); + }; + Data data; + + struct Sync : public QEvent { + Sync() : QEvent(QEvent::User) {} + Data data; + QDeclarativeListModel *list; + }; + + void changedData(int index, int count, const QList<int> &roles); + + QAtomicInt m_ref; + QDeclarativeListModel *m_orig; + QDeclarativeListModel *m_copy; + QMutex mutex; + QWaitCondition syncDone; +}; + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(QDeclarativeListModelWorkerAgent::VariantRef) + +QT_END_HEADER + +#endif // QDECLARATIVEWORKERSCRIPT_P_H + |