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filetree.h 4.00 KiB
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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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**   * Redistributions of source code must retain the above copyright
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**     notice, this list of conditions and the following disclaimer.
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**   * Redistributions in binary form must reproduce the above copyright
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**     notice, this list of conditions and the following disclaimer in
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**     the documentation and/or other materials provided with the
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**     distribution.
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**   * Neither the name of The Qt Company Ltd nor the names of its
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**     contributors may be used to endorse or promote products derived
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**     from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore/QFileInfo>
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#include <QtCore/QDir>
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#include <QtCore/QVector>
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#include <QtXmlPatterns/QSimpleXmlNodeModel>
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class FileTree : public QSimpleXmlNodeModel
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{
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public:
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    FileTree(const QXmlNamePool &namePool);
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    QXmlNodeModelIndex nodeFor(const QString &fileName) const;
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    //! [0]
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    virtual QXmlNodeModelIndex::DocumentOrder compareOrder(const QXmlNodeModelIndex&, const QXmlNodeModelIndex&) const;
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    virtual QXmlName name(const QXmlNodeModelIndex &node) const;
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    virtual QUrl documentUri(const QXmlNodeModelIndex &node) const;
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    virtual QXmlNodeModelIndex::NodeKind kind(const QXmlNodeModelIndex &node) const;
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    virtual QXmlNodeModelIndex root(const QXmlNodeModelIndex &node) const;
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    virtual QVariant typedValue(const QXmlNodeModelIndex &node) const;
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    //! [0]
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protected:
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    //! [1]
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    virtual QVector<QXmlNodeModelIndex> attributes(const QXmlNodeModelIndex &element) const;
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    virtual QXmlNodeModelIndex nextFromSimpleAxis(SimpleAxis, const QXmlNodeModelIndex&) const;
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    //! [1]
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private:
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    //! [4]
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    enum Type {
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        File,
7172737475767778798081828384858687888990919293949596979899100101102103
Directory, AttributeFileName, AttributeFilePath, AttributeSize, AttributeMIMEType, AttributeSuffix }; //! [4] inline QXmlNodeModelIndex nextSibling(const QXmlNodeModelIndex &nodeIndex, const QFileInfo &from, qint8 offset) const; inline const QFileInfo &toFileInfo(const QXmlNodeModelIndex &index) const; inline QXmlNodeModelIndex toNodeIndex(const QFileInfo &index, Type attributeName) const; inline QXmlNodeModelIndex toNodeIndex(const QFileInfo &index) const; /* One possible improvement is to use a hash, and use the &*&value() trick to get a pointer, which would be stored in data() instead of the index. */ //! [2] mutable QVector<QFileInfo> m_fileInfos; const QDir::Filters m_filterAllowAll; const QDir::SortFlags m_sortFlags; QVector<QXmlName> m_names; //! [2] }; //! [3] //! [3]