/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtCore module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 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 GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#ifndef QABSTRACTITEMMODEL_H#define QABSTRACTITEMMODEL_H#include <QtCore/qvariant.h>#include <QtCore/qobject.h>QT_BEGIN_HEADERQT_MODULE(Core)class QAbstractItemModel;class QPersistentModelIndex;class Q_CORE_EXPORT QModelIndex{    friend class QAbstractItemModel;    friend class QProxyModel;public:    inline QModelIndex() : r(-1), c(-1), p(0), m(0) {}    inline QModelIndex(const QModelIndex &other)        : r(other.r), c(other.c), p(other.p), m(other.m) {}    inline ~QModelIndex() { p = 0; m = 0; }    inline int row() const { return r; }    inline int column() const { return c; }    inline void *internalPointer() const { return p; }    inline qint64 internalId() const { return reinterpret_cast<qint64>(p); }    inline QModelIndex parent() const;    inline QModelIndex sibling(int row, int column) const;    inline QModelIndex child(int row, int column) const;    inline QVariant data(int role = Qt::DisplayRole) const;    inline Qt::ItemFlags flags() const;    inline const QAbstractItemModel *model() const { return m; }    inline bool isValid() const { return (r >= 0) && (c >= 0) && (m != 0); }    inline bool operator==(const QModelIndex &other) const        { return (other.r == r && other.c == c && other.p == p && other.m == m); }    inline bool operator!=(const QModelIndex &other) const        { return !(*this == other); }    inline bool operator<(const QModelIndex &other) const        { if (r < other.r) return true;          if (r == other.r && c < other.c) return true;          if (r == other.r && c == other.c) return p < other.p;          return false; }private:    inline QModelIndex(int row, int column, void *ptr, const QAbstractItemModel *model);    int r, c;    void *p;    const QAbstractItemModel *m;};Q_DECLARE_TYPEINFO(QModelIndex, Q_MOVABLE_TYPE);#ifndef QT_NO_DEBUG_STREAMQ_CORE_EXPORT QDebug operator<<(QDebug, const QModelIndex &);#endifclass QPersistentModelIndexData;class Q_CORE_EXPORT QPersistentModelIndex{public:    QPersistentModelIndex();    QPersistentModelIndex(const QModelIndex &index);    QPersistentModelIndex(const QPersistentModelIndex &other);    ~QPersistentModelIndex();    bool operator<(const QPersistentModelIndex &other) const;    bool operator==(const QPersistentModelIndex &other) const;    inline bool operator!=(const QPersistentModelIndex &other) const    { return !operator==(other); }    QPersistentModelIndex &operator=(const QPersistentModelIndex &other);    bool operator==(const QModelIndex &other) const;    bool operator!=(const QModelIndex &other) const;    QPersistentModelIndex &operator=(const QModelIndex &other);    operator const QModelIndex&() const;    int row() const;    int column() const;    void *internalPointer() const;    qint64 internalId() const;    QModelIndex parent() const;    QModelIndex sibling(int row, int column) const;    QModelIndex child(int row, int column) const;    QVariant data(int role = Qt::DisplayRole) const;    Qt::ItemFlags flags() const;    const QAbstractItemModel *model() const;    bool isValid() const;private:    QPersistentModelIndexData *d;#ifndef QT_NO_DEBUG_STREAM    friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QPersistentModelIndex &);#endif};Q_DECLARE_TYPEINFO(QPersistentModelIndex, Q_MOVABLE_TYPE);#ifndef QT_NO_DEBUG_STREAMQ_CORE_EXPORT QDebug operator<<(QDebug, const QPersistentModelIndex &);#endiftemplate<typename T> class QList;typedef QList<QModelIndex> QModelIndexList;class QMimeData;class QAbstractItemModelPrivate;template <class Key, class T> class QMap;class Q_CORE_EXPORT QAbstractItemModel : public QObject{    Q_OBJECT    friend class QPersistentModelIndexData;public:    explicit QAbstractItemModel(QObject *parent = 0);    virtual ~QAbstractItemModel();    bool hasIndex(int row, int column, const QModelIndex &parent = QModelIndex()) const;    virtual QModelIndex index(int row, int column,                              const QModelIndex &parent = QModelIndex()) const = 0;    virtual QModelIndex parent(const QModelIndex &child) const = 0;    inline QModelIndex sibling(int row, int column, const QModelIndex &idx) const        { return index(row, column, parent(idx)); }    virtual int rowCount(const QModelIndex &parent = QModelIndex()) const = 0;    virtual int columnCount(const QModelIndex &parent = QModelIndex()) const = 0;    virtual bool hasChildren(const QModelIndex &parent = QModelIndex()) const;    virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const = 0;    virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);    virtual QVariant headerData(int section, Qt::Orientation orientation,                                int role = Qt::DisplayRole) const;    virtual bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,                               int role = Qt::EditRole);    virtual QMap<int, QVariant> itemData(const QModelIndex &index) const;    virtual bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles);    virtual QStringList mimeTypes() const;    virtual QMimeData *mimeData(const QModelIndexList &indexes) const;    virtual bool dropMimeData(const QMimeData *data, Qt::DropAction action,                              int row, int column, const QModelIndex &parent);    virtual Qt::DropActions supportedDropActions() const;    Qt::DropActions supportedDragActions() const;    void setSupportedDragActions(Qt::DropActions);    virtual bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex());    virtual bool insertColumns(int column, int count, const QModelIndex &parent = QModelIndex());    virtual bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());    virtual bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex());    inline bool insertRow(int row, const QModelIndex &parent = QModelIndex());    inline bool insertColumn(int column, const QModelIndex &parent = QModelIndex());    inline bool removeRow(int row, const QModelIndex &parent = QModelIndex());    inline bool removeColumn(int column, const QModelIndex &parent = QModelIndex());    virtual void fetchMore(const QModelIndex &parent);    virtual bool canFetchMore(const QModelIndex &parent) const;    virtual Qt::ItemFlags flags(const QModelIndex &index) const;    virtual void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);    virtual QModelIndex buddy(const QModelIndex &index) const;    virtual QModelIndexList match(const QModelIndex &start, int role,                                  const QVariant &value, int hits = 1,                                  Qt::MatchFlags flags =                                  Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const;    virtual QSize span(const QModelIndex &index) const;#ifdef Q_NO_USING_KEYWORD    inline QObject *parent() const { return QObject::parent(); }#else    using QObject::parent;#endifQ_SIGNALS:    void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);    void headerDataChanged(Qt::Orientation orientation, int first, int last);    void layoutChanged();    void layoutAboutToBeChanged();#if !defined(Q_MOC_RUN) && !defined(qdoc)private: // can only be emitted by QAbstractItemModel#endif    void rowsAboutToBeInserted(const QModelIndex &parent, int first, int last);    void rowsInserted(const QModelIndex &parent, int first, int last);    void rowsAboutToBeRemoved(const QModelIndex &parent, int first, int last);    void rowsRemoved(const QModelIndex &parent, int first, int last);    void columnsAboutToBeInserted(const QModelIndex &parent, int first, int last);    void columnsInserted(const QModelIndex &parent, int first, int last);    void columnsAboutToBeRemoved(const QModelIndex &parent, int first, int last);    void columnsRemoved(const QModelIndex &parent, int first, int last);    void modelAboutToBeReset();    void modelReset();public Q_SLOTS:    virtual bool submit();    virtual void revert();protected:    QAbstractItemModel(QAbstractItemModelPrivate &dd, QObject *parent = 0);    inline QModelIndex createIndex(int row, int column, void *data = 0) const;    inline QModelIndex createIndex(int row, int column, int id) const;    inline QModelIndex createIndex(int row, int column, quint32 id) const;    void encodeData(const QModelIndexList &indexes, QDataStream &stream) const;    bool decodeData(int row, int column, const QModelIndex &parent, QDataStream &stream);    void beginInsertRows(const QModelIndex &parent, int first, int last);    void endInsertRows();    void beginRemoveRows(const QModelIndex &parent, int first, int last);    void endRemoveRows();    void beginInsertColumns(const QModelIndex &parent, int first, int last);    void endInsertColumns();    void beginRemoveColumns(const QModelIndex &parent, int first, int last);    void endRemoveColumns();    void reset();    void changePersistentIndex(const QModelIndex &from, const QModelIndex &to);    void changePersistentIndexList(const QModelIndexList &from, const QModelIndexList &to);    QModelIndexList persistentIndexList() const;    private:    Q_DECLARE_PRIVATE(QAbstractItemModel)    Q_DISABLE_COPY(QAbstractItemModel)};inline bool QAbstractItemModel::insertRow(int arow, const QModelIndex &aparent){ return insertRows(arow, 1, aparent); }inline bool QAbstractItemModel::insertColumn(int acolumn, const QModelIndex &aparent){ return insertColumns(acolumn, 1, aparent); }inline bool QAbstractItemModel::removeRow(int arow, const QModelIndex &aparent){ return removeRows(arow, 1, aparent); }inline bool QAbstractItemModel::removeColumn(int acolumn, const QModelIndex &aparent){ return removeColumns(acolumn, 1, aparent); }inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, void *adata) const{ return QModelIndex(arow, acolumn, adata, this); }inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, int aid) const#if defined(Q_CC_MSVC)#pragma warning( push )#pragma warning( disable : 4312 ) // avoid conversion warning on 64-bit#endif{ return QModelIndex(arow, acolumn, reinterpret_cast<void*>(aid), this); }#if defined(Q_CC_MSVC)#pragma warning( pop )#endifinline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, quint32 aid) const#if defined(Q_CC_MSVC)#pragma warning( push )#pragma warning( disable : 4312 ) // avoid conversion warning on 64-bit#endif{ return QModelIndex(arow, acolumn, reinterpret_cast<void*>(aid), this); }#if defined(Q_CC_MSVC)#pragma warning( pop )#endifclass Q_CORE_EXPORT QAbstractTableModel : public QAbstractItemModel{    Q_OBJECTpublic:    explicit QAbstractTableModel(QObject *parent = 0);    ~QAbstractTableModel();    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;    bool dropMimeData(const QMimeData *data, Qt::DropAction action,                      int row, int column, const QModelIndex &parent);protected:    QAbstractTableModel(QAbstractItemModelPrivate &dd, QObject *parent);private:    Q_DISABLE_COPY(QAbstractTableModel)    QModelIndex parent(const QModelIndex &child) const;    bool hasChildren(const QModelIndex &parent) const;};class Q_CORE_EXPORT QAbstractListModel : public QAbstractItemModel{    Q_OBJECTpublic:    explicit QAbstractListModel(QObject *parent = 0);    ~QAbstractListModel();    QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;    bool dropMimeData(const QMimeData *data, Qt::DropAction action,                      int row, int column, const QModelIndex &parent);protected:    QAbstractListModel(QAbstractItemModelPrivate &dd, QObject *parent);private:    Q_DISABLE_COPY(QAbstractListModel)    QModelIndex parent(const QModelIndex &child) const;    int columnCount(const QModelIndex &parent) const;    bool hasChildren(const QModelIndex &parent) const;};// inline implementationsinline QModelIndex::QModelIndex(int arow, int acolumn, void *adata,                                const QAbstractItemModel *amodel)    : r(arow), c(acolumn), p(adata), m(amodel) {}inline QModelIndex QModelIndex::parent() const{ return m ? m->parent(*this) : QModelIndex(); }inline QModelIndex QModelIndex::sibling(int arow, int acolumn) const{ return m ? m->index(arow, acolumn, m->parent(*this)) : QModelIndex(); }inline QModelIndex QModelIndex::child(int arow, int acolumn) const{ return m ? m->index(arow, acolumn, *this) : QModelIndex(); }inline QVariant QModelIndex::data(int arole) const{ return m ? m->data(*this, arole) : QVariant(); }inline Qt::ItemFlags QModelIndex::flags() const{ return m ? m->flags(*this) : Qt::ItemFlags(0); }inline uint qHash(const QModelIndex &index){ return uint((index.row() << 4) + index.column() + index.internalId()); }QT_END_HEADER#endif // QABSTRACTITEMMODEL_H