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****************************************************************************/

#ifndef QLISTWIDGET_P_H

#define QLISTWIDGET_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API. This header file may change

// from version to version without notice, or even be removed.

//

// We mean it.

//

#include <QtCore/qabstractitemmodel.h>

#include <QtGui/qabstractitemview.h>

#include <QtGui/qlistwidget.h>

#include <qitemdelegate.h>

#include <private/qlistview_p.h>

#include <private/qwidgetitemdata_p.h>

#ifndef QT_NO_LISTWIDGET

QT_BEGIN_NAMESPACE

class QListModelLessThan

{

public:

    inline bool operator()(QListWidgetItem *i1, QListWidgetItem *i2) const

        { return *i1 < *i2; }

};

class QListModelGreaterThan

{

public:

    inline bool operator()(QListWidgetItem *i1, QListWidgetItem *i2) const

        { return *i2 < *i1; }

};

class QListModel : public QAbstractListModel

{

    Q_OBJECT

public:

    QListModel(QListWidget *parent);

    ~QListModel();

    void clear();

    QListWidgetItem *at(int row) const;

    void insert(int row, QListWidgetItem *item);

    void insert(int row, const QStringList &items);

    void remove(QListWidgetItem *item);

    QListWidgetItem *take(int row);

    int rowCount(const QModelIndex &parent = QModelIndex()) const;

    QModelIndex index(QListWidgetItem *item) const;

    QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;

    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;

    bool setData(const QModelIndex &index, const QVariant &value, int role);

    QMap<int, QVariant> itemData(const QModelIndex &index) const;

    bool insertRows(int row, int count = 1, const QModelIndex &parent = QModelIndex());

    bool removeRows(int row, int count = 1, const QModelIndex &parent = QModelIndex());

    Qt::ItemFlags flags(const QModelIndex &index) const;

    void sort(int column, Qt::SortOrder order);

    void ensureSorted(int column, Qt::SortOrder order, int start, int end);

    static bool itemLessThan(const QPair<QListWidgetItem*,int> &left,

                             const QPair<QListWidgetItem*,int> &right);

    static bool itemGreaterThan(const QPair<QListWidgetItem*,int> &left,

                                const QPair<QListWidgetItem*,int> &right);

    static QList<QListWidgetItem*>::iterator sortedInsertionIterator(

        const QList<QListWidgetItem*>::iterator &begin,

        const QList<QListWidgetItem*>::iterator &end,

        Qt::SortOrder order, QListWidgetItem *item);

    void itemChanged(QListWidgetItem *item);

    // dnd

    QStringList mimeTypes() const;

    QMimeData *mimeData(const QModelIndexList &indexes) const;

#ifndef QT_NO_DRAGANDDROP

    bool dropMimeData(const QMimeData *data, Qt::DropAction action,

                      int row, int column, const QModelIndex &parent);

    Qt::DropActions supportedDropActions() const;

#endif

    QMimeData *internalMimeData()  const;

private:

    QList<QListWidgetItem*> items;

    // A cache must be mutable if get-functions should have const modifiers

    mutable QModelIndexList cachedIndexes;

};

class QListWidgetPrivate : public QListViewPrivate

{

    Q_DECLARE_PUBLIC(QListWidget)

public:

    QListWidgetPrivate() : QListViewPrivate(), sortOrder(Qt::AscendingOrder), sortingEnabled(false) {}

    inline QListModel *listModel() const { return qobject_cast<QListModel*>(model); }

    void setup();

    void _q_emitItemPressed(const QModelIndex &index);

    void _q_emitItemClicked(const QModelIndex &index);

    void _q_emitItemDoubleClicked(const QModelIndex &index);

    void _q_emitItemActivated(const QModelIndex &index);

    void _q_emitItemEntered(const QModelIndex &index);

    void _q_emitItemChanged(const QModelIndex &index);

    void _q_emitCurrentItemChanged(const QModelIndex &current, const QModelIndex &previous);

    void _q_sort();

    void _q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);

    Qt::SortOrder sortOrder;

    bool sortingEnabled;

};

class QListWidgetItemPrivate

{

public:

    QListWidgetItemPrivate(QListWidgetItem *item) : q(item), theid(-1) {}

    QListWidgetItem *q;

    QVector<QWidgetItemData> values;

    int theid;

};

QT_END_NAMESPACE

#endif // QT_NO_LISTWIDGET

#endif // QLISTWIDGET_P_H