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Diffstat (limited to 'src/declarative/items/qsgvisualitemmodel_p.h')
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diff --git a/src/declarative/items/qsgvisualitemmodel_p.h b/src/declarative/items/qsgvisualitemmodel_p.h new file mode 100644 index 0000000000..62f89905ac --- /dev/null +++ b/src/declarative/items/qsgvisualitemmodel_p.h @@ -0,0 +1,257 @@ +// Commit: ac5c099cc3c5b8c7eec7a49fdeb8a21037230350 +/**************************************************************************** +** +** 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 QSGVISUALITEMMODEL_P_H +#define QSGVISUALITEMMODEL_P_H + +#include <QtDeclarative/qdeclarative.h> +#include <QtCore/qobject.h> +#include <QtCore/qabstractitemmodel.h> + +QT_BEGIN_HEADER + +Q_DECLARE_METATYPE(QModelIndex) + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +class QSGItem; +class QDeclarativeComponent; +class QDeclarativePackage; +class QSGVisualDataModelPrivate; + +class Q_DECLARATIVE_EXPORT QSGVisualModel : public QObject +{ + Q_OBJECT + + Q_PROPERTY(int count READ count NOTIFY countChanged) + +public: + virtual ~QSGVisualModel() {} + + enum ReleaseFlag { Referenced = 0x01, Destroyed = 0x02 }; + Q_DECLARE_FLAGS(ReleaseFlags, ReleaseFlag) + + virtual int count() const = 0; + virtual bool isValid() const = 0; + virtual QSGItem *item(int index, bool complete=true) = 0; + virtual ReleaseFlags release(QSGItem *item) = 0; + virtual bool completePending() const = 0; + virtual void completeItem() = 0; + virtual QString stringValue(int, const QString &) = 0; + virtual void setWatchedRoles(QList<QByteArray> roles) = 0; + + virtual int indexOf(QSGItem *item, QObject *objectContext) const = 0; + +Q_SIGNALS: + void countChanged(); + void itemsInserted(int index, int count); + void itemsRemoved(int index, int count); + void itemsMoved(int from, int to, int count); + void itemsChanged(int index, int count); + void modelReset(); + void createdItem(int index, QSGItem *item); + void destroyingItem(QSGItem *item); + +protected: + QSGVisualModel(QObjectPrivate &dd, QObject *parent = 0) + : QObject(dd, parent) {} + +private: + Q_DISABLE_COPY(QSGVisualModel) +}; + +class QSGVisualItemModelAttached; +class QSGVisualItemModelPrivate; +class Q_DECLARATIVE_EXPORT QSGVisualItemModel : public QSGVisualModel +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QSGVisualItemModel) + + Q_PROPERTY(QDeclarativeListProperty<QSGItem> children READ children NOTIFY childrenChanged DESIGNABLE false) + Q_CLASSINFO("DefaultProperty", "children") + +public: + QSGVisualItemModel(QObject *parent=0); + virtual ~QSGVisualItemModel() {} + + virtual int count() const; + virtual bool isValid() const; + virtual QSGItem *item(int index, bool complete=true); + virtual ReleaseFlags release(QSGItem *item); + virtual bool completePending() const; + virtual void completeItem(); + virtual QString stringValue(int index, const QString &role); + virtual void setWatchedRoles(QList<QByteArray>) {} + + virtual int indexOf(QSGItem *item, QObject *objectContext) const; + + QDeclarativeListProperty<QSGItem> children(); + + static QSGVisualItemModelAttached *qmlAttachedProperties(QObject *obj); + +Q_SIGNALS: + void childrenChanged(); + +private: + Q_DISABLE_COPY(QSGVisualItemModel) +}; + + +class Q_DECLARATIVE_EXPORT QSGVisualDataModel : public QSGVisualModel +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QSGVisualDataModel) + + Q_PROPERTY(QVariant model READ model WRITE setModel) + Q_PROPERTY(QDeclarativeComponent *delegate READ delegate WRITE setDelegate) + Q_PROPERTY(QString part READ part WRITE setPart) + Q_PROPERTY(QObject *parts READ parts CONSTANT) + Q_PROPERTY(QVariant rootIndex READ rootIndex WRITE setRootIndex NOTIFY rootIndexChanged) + Q_CLASSINFO("DefaultProperty", "delegate") +public: + QSGVisualDataModel(); + QSGVisualDataModel(QDeclarativeContext *, QObject *parent=0); + virtual ~QSGVisualDataModel(); + + QVariant model() const; + void setModel(const QVariant &); + + QDeclarativeComponent *delegate() const; + void setDelegate(QDeclarativeComponent *); + + QVariant rootIndex() const; + void setRootIndex(const QVariant &root); + + Q_INVOKABLE QVariant modelIndex(int idx) const; + Q_INVOKABLE QVariant parentModelIndex() const; + + QString part() const; + void setPart(const QString &); + + int count() const; + bool isValid() const { return delegate() != 0; } + QSGItem *item(int index, bool complete=true); + QSGItem *item(int index, const QByteArray &, bool complete=true); + ReleaseFlags release(QSGItem *item); + bool completePending() const; + void completeItem(); + virtual QString stringValue(int index, const QString &role); + virtual void setWatchedRoles(QList<QByteArray> roles); + + int indexOf(QSGItem *item, QObject *objectContext) const; + + QObject *parts(); + +Q_SIGNALS: + void createdPackage(int index, QDeclarativePackage *package); + void destroyingPackage(QDeclarativePackage *package); + void rootIndexChanged(); + +private Q_SLOTS: + void _q_itemsChanged(int, int, const QList<int> &); + void _q_itemsInserted(int index, int count); + void _q_itemsRemoved(int index, int count); + void _q_itemsMoved(int from, int to, int count); + void _q_rowsInserted(const QModelIndex &,int,int); + void _q_rowsRemoved(const QModelIndex &,int,int); + void _q_rowsMoved(const QModelIndex &, int, int, const QModelIndex &, int); + void _q_dataChanged(const QModelIndex&,const QModelIndex&); + void _q_layoutChanged(); + void _q_modelReset(); + void _q_createdPackage(int index, QDeclarativePackage *package); + void _q_destroyingPackage(QDeclarativePackage *package); + +private: + Q_DISABLE_COPY(QSGVisualDataModel) +}; + +class QSGVisualItemModelAttached : public QObject +{ + Q_OBJECT + +public: + QSGVisualItemModelAttached(QObject *parent) + : QObject(parent), m_index(0) {} + ~QSGVisualItemModelAttached() { + attachedProperties.remove(parent()); + } + + Q_PROPERTY(int index READ index NOTIFY indexChanged) + int index() const { return m_index; } + void setIndex(int idx) { + if (m_index != idx) { + m_index = idx; + emit indexChanged(); + } + } + + static QSGVisualItemModelAttached *properties(QObject *obj) { + QSGVisualItemModelAttached *rv = attachedProperties.value(obj); + if (!rv) { + rv = new QSGVisualItemModelAttached(obj); + attachedProperties.insert(obj, rv); + } + return rv; + } + +Q_SIGNALS: + void indexChanged(); + +public: + int m_index; + + static QHash<QObject*, QSGVisualItemModelAttached*> attachedProperties; +}; + + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QSGVisualModel) +QML_DECLARE_TYPE(QSGVisualItemModel) +QML_DECLARE_TYPEINFO(QSGVisualItemModel, QML_HAS_ATTACHED_PROPERTIES) +QML_DECLARE_TYPE(QSGVisualDataModel) + +QT_END_HEADER + +#endif // QSGVISUALITEMMODEL_P_H |