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50
51#include <QtCore/QFileInfo>
52#include <QtCore/QDir>
53#include <QtCore/QVector>
54#include <QtXmlPatterns/QSimpleXmlNodeModel>
55
56class FileTree : public QSimpleXmlNodeModel
57{
58public:
59 FileTree(const QXmlNamePool &namePool);
60
61 QXmlNodeModelIndex nodeFor(const QString &fileName) const;
62
63 //! [0]
64 virtual QXmlNodeModelIndex::DocumentOrder compareOrder(const QXmlNodeModelIndex&, const QXmlNodeModelIndex&) const;
65 virtual QXmlName name(const QXmlNodeModelIndex &node) const;
66 virtual QUrl documentUri(const QXmlNodeModelIndex &node) const;
67 virtual QXmlNodeModelIndex::NodeKind kind(const QXmlNodeModelIndex &node) const;
68 virtual QXmlNodeModelIndex root(const QXmlNodeModelIndex &node) const;
69 virtual QVariant typedValue(const QXmlNodeModelIndex &node) const;
70 //! [0]
71protected:
72 //! [1]
73 virtual QVector<QXmlNodeModelIndex> attributes(const QXmlNodeModelIndex &element) const;
74 virtual QXmlNodeModelIndex nextFromSimpleAxis(SimpleAxis, const QXmlNodeModelIndex&) const;
75 //! [1]
76
77private:
78 //! [4]
79 enum Type {
80 File,
81 Directory,
82 AttributeFileName,
83 AttributeFilePath,
84 AttributeSize,
85 AttributeMIMEType,
86 AttributeSuffix
87 };
88 //! [4]
89
90 inline QXmlNodeModelIndex nextSibling(const QXmlNodeModelIndex &nodeIndex,
91 const QFileInfo &from,
92 qint8 offset) const;
93 inline const QFileInfo &toFileInfo(const QXmlNodeModelIndex &index) const;
94 inline QXmlNodeModelIndex toNodeIndex(const QFileInfo &index,
95 Type attributeName) const;
96 inline QXmlNodeModelIndex toNodeIndex(const QFileInfo &index) const;
97
98 /*
99 One possible improvement is to use a hash, and use the &*&value()
100 trick to get a pointer, which would be stored in data() instead
101 of the index.
102 */
103 //! [2]
104 mutable QVector<QFileInfo> m_fileInfos;
105 const QDir::Filters m_filterAllowAll;
106 const QDir::SortFlags m_sortFlags;
107 QVector<QXmlName> m_names;
108 //! [2]
109};
110
111 //! [3]
112 //! [3]
113

source code of qtxmlpatterns/examples/xmlpatterns/filetree/filetree.h