qdeclarativefolderlistmodel.h Example File

src/imports/folderlistmodel/qdeclarativefolderlistmodel.h
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QDECLARATIVEFOLDERLISTMODEL_H
#define QDECLARATIVEFOLDERLISTMODEL_H

#include <qdeclarative.h>
#include <QStringList>
#include <QUrl>
#include <QAbstractListModel>

#ifndef QT_NO_DIRMODEL

QT_BEGIN_HEADER

QT_MODULE(Declarative)

class QDeclarativeContext;
class QModelIndex;

class QDeclarativeFolderListModelPrivate;

class QDeclarativeFolderListModel : public QAbstractListModel, public QDeclarativeParserStatus
{
    Q_OBJECT
    Q_INTERFACES(QDeclarativeParserStatus)

    Q_PROPERTY(QUrl folder READ folder WRITE setFolder NOTIFY folderChanged)
    Q_PROPERTY(QUrl parentFolder READ parentFolder NOTIFY folderChanged)
    Q_PROPERTY(QStringList nameFilters READ nameFilters WRITE setNameFilters)
    Q_PROPERTY(SortField sortField READ sortField WRITE setSortField)
    Q_PROPERTY(bool sortReversed READ sortReversed WRITE setSortReversed)
    Q_PROPERTY(bool showDirs READ showDirs WRITE setShowDirs)
    Q_PROPERTY(bool showDotAndDotDot READ showDotAndDotDot WRITE setShowDotAndDotDot)
    Q_PROPERTY(bool showOnlyReadable READ showOnlyReadable WRITE setShowOnlyReadable)
    Q_PROPERTY(int count READ count)

public:
    QDeclarativeFolderListModel(QObject *parent = 0);
    ~QDeclarativeFolderListModel();

    enum Roles { FileNameRole = Qt::UserRole+1, FilePathRole = Qt::UserRole+2 };

    int rowCount(const QModelIndex &parent) const;
    QVariant data(const QModelIndex &index, int role) const;

    int count() const { return rowCount(QModelIndex()); }

    QUrl folder() const;
    void setFolder(const QUrl &folder);

    QUrl parentFolder() const;

    QStringList nameFilters() const;
    void setNameFilters(const QStringList &filters);

    enum SortField { Unsorted, Name, Time, Size, Type };
    SortField sortField() const;
    void setSortField(SortField field);
    Q_ENUMS(SortField)

    bool sortReversed() const;
    void setSortReversed(bool rev);

    bool showDirs() const;
    void  setShowDirs(bool);
    bool showDotAndDotDot() const;
    void  setShowDotAndDotDot(bool);
    bool showOnlyReadable() const;
    void  setShowOnlyReadable(bool);

    Q_INVOKABLE bool isFolder(int index) const;

    virtual void classBegin();
    virtual void componentComplete();

Q_SIGNALS:
    void folderChanged();

private Q_SLOTS:
    void refresh();
    void inserted(const QModelIndex &index, int start, int end);
    void removed(const QModelIndex &index, int start, int end);
    void handleDataChanged(const QModelIndex &start, const QModelIndex &end);

private:
    Q_DISABLE_COPY(QDeclarativeFolderListModel)
    QDeclarativeFolderListModelPrivate *d;
};


QML_DECLARE_TYPE(QDeclarativeFolderListModel)

QT_END_HEADER

#endif // QT_NO_DIRMODEL

#endif // QDECLARATIVEFOLDERLISTMODEL_H

© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.