| 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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| 6 | **
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| 7 | ** This file is part of the examples of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:BSD$
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| 10 | ** You may use this file under the terms of the BSD license as follows:
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| 11 | **
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| 12 | ** "Redistribution and use in source and binary forms, with or without
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| 13 | ** modification, are permitted provided that the following conditions are
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| 14 | ** met:
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| 15 | ** * Redistributions of source code must retain the above copyright
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| 16 | ** notice, this list of conditions and the following disclaimer.
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| 17 | ** * Redistributions in binary form must reproduce the above copyright
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| 18 | ** notice, this list of conditions and the following disclaimer in
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| 19 | ** the documentation and/or other materials provided with the
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| 20 | ** distribution.
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| 21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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| 22 | ** the names of its contributors may be used to endorse or promote
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| 23 | ** products derived from this software without specific prior written
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| 24 | ** permission.
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| 25 | **
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| 26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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| 37 | ** $QT_END_LICENSE$
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| 38 | **
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| 39 | ****************************************************************************/
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| 40 |
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| 41 | #include <QtCore/QFileInfo>
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| 42 | #include <QtCore/QDir>
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| 43 | #include <QtCore/QVector>
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| 44 | #include <QtXmlPatterns/QSimpleXmlNodeModel>
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| 45 |
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| 46 | class FileTree : public QSimpleXmlNodeModel
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| 47 | {
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| 48 | public:
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| 49 | FileTree(const QXmlNamePool &namePool);
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| 50 |
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| 51 | QXmlNodeModelIndex nodeFor(const QString &fileName) const;
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| 52 |
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| 53 | //! [0]
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| 54 | virtual QXmlNodeModelIndex::DocumentOrder compareOrder(const QXmlNodeModelIndex&, const QXmlNodeModelIndex&) const;
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| 55 | virtual QXmlName name(const QXmlNodeModelIndex &node) const;
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| 56 | virtual QUrl documentUri(const QXmlNodeModelIndex &node) const;
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| 57 | virtual QXmlNodeModelIndex::NodeKind kind(const QXmlNodeModelIndex &node) const;
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| 58 | virtual QXmlNodeModelIndex root(const QXmlNodeModelIndex &node) const;
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| 59 | virtual QVariant typedValue(const QXmlNodeModelIndex &node) const;
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| 60 | //! [0]
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| 61 | protected:
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| 62 | //! [1]
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| 63 | virtual QVector<QXmlNodeModelIndex> attributes(const QXmlNodeModelIndex &element) const;
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| 64 | virtual QXmlNodeModelIndex nextFromSimpleAxis(SimpleAxis, const QXmlNodeModelIndex&) const;
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| 65 | //! [1]
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| 66 |
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| 67 | private:
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| 68 | //! [4]
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| 69 | enum Type {
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| 70 | File,
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| 71 | Directory,
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| 72 | AttributeFileName,
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| 73 | AttributeFilePath,
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| 74 | AttributeSize,
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| 75 | AttributeMIMEType,
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| 76 | AttributeSuffix
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| 77 | };
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| 78 | //! [4]
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| 79 |
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| 80 | inline QXmlNodeModelIndex nextSibling(const QXmlNodeModelIndex &nodeIndex,
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| 81 | const QFileInfo &from,
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| 82 | qint8 offset) const;
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| 83 | inline const QFileInfo &toFileInfo(const QXmlNodeModelIndex &index) const;
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| 84 | inline QXmlNodeModelIndex toNodeIndex(const QFileInfo &index,
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| 85 | Type attributeName) const;
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| 86 | inline QXmlNodeModelIndex toNodeIndex(const QFileInfo &index) const;
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| 87 |
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| 88 | /*
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| 89 | One possible improvement is to use a hash, and use the &*&value()
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| 90 | trick to get a pointer, which would be stored in data() instead
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| 91 | of the index.
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| 92 | */
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| 93 | //! [2]
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| 94 | mutable QVector<QFileInfo> m_fileInfos;
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| 95 | const QDir::Filters m_filterAllowAll;
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| 96 | const QDir::SortFlags m_sortFlags;
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| 97 | QVector<QXmlName> m_names;
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| 98 | //! [2]
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| 99 | };
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| 100 |
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| 101 | //! [3]
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| 102 | //! [3]
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