qlistwidget_p.h - mozsearch

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#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 <QtWidgets/private/qtwidgetsglobal_p.h>

#include <QtCore/qabstractitemmodel.h>

#include <QtWidgets/qabstractitemview.h>

#include <QtWidgets/qlistwidget.h>

#include <private/qlistview_p.h>

#include <private/qwidgetitemdata_p.h>

#include <array>

QT_REQUIRE_CONFIG(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 Q_AUTOTEST_EXPORT QListModel : public QAbstractListModel

    Q_OBJECT

    friend class QListWidget;

public:

    QListModel(QListWidget *parent);

    ~QListModel();

    inline QListWidget *view() const { return qobject_cast<QListWidget *>(QObject::parent()); }

    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);

    void move(int srcRow, int dstRow);

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

    QModelIndex index(const QListWidgetItem *item) const;

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

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

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

    bool clearItemData(const QModelIndex &index) override;

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

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

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

    bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override;

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

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

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

    static bool itemLessThan(const std::pair<QListWidgetItem*,int> &left,

                             const std::pair<QListWidgetItem*,int> &right);

    static bool itemGreaterThan(const std::pair<QListWidgetItem*,int> &left,

                                const std::pair<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, const QList<int> &roles = QList<int>());

    // dnd

    QStringList mimeTypes() const override;

    QMimeData *mimeData(const QModelIndexList &indexes) const override;

#if QT_CONFIG(draganddrop)

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

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

    Qt::DropActions supportedDropActions() const override;

    Qt::DropActions supportedDragActions() const override;

#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 clearConnections();

    void emitItemPressed(const QModelIndex &index);

    void emitItemClicked(const QModelIndex &index);

    void emitItemDoubleClicked(const QModelIndex &index);

    void emitItemActivated(const QModelIndex &index);

    void emitItemEntered(const QModelIndex &index);

    void emitItemChanged(const QModelIndex &index);

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

    void sort();

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

    Qt::SortOrder sortOrder;

    bool sortingEnabled;

    std::optional<Qt::DropActions> supportedDragActions;

    std::array<QMetaObject::Connection, 8> connections;

    std::array<QMetaObject::Connection, 2> selectionModelConnections;

};

class QListWidgetItemPrivate

public:

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

    QListWidgetItem *q;

    QList<QWidgetItemData> values;

    int theid;

};

QT_END_NAMESPACE

#endif // QLISTWIDGET_P_H