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40
41 #include <QtGui>
42 #include <QtXmlPatterns>
43
44 #include "mainwindow.h"
45 #include "qobjectxmlmodel.h"
46 #include "xmlsyntaxhighlighter.h"
47
MainWindow()48 MainWindow::MainWindow()
49 {
50 setupUi(this);
51
52 new XmlSyntaxHighlighter(wholeTreeOutput->document());
53
54 /* Setup the font. */
55 {
56 QFont font("Courier");
57 font.setFixedPitch(true);
58
59 wholeTree->setFont(font);
60 wholeTreeOutput->setFont(font);
61 htmlQueryEdit->setFont(font);
62 }
63
64 QXmlNamePool namePool;
65 QObjectXmlModel qObjectModel(this, namePool);
66 QXmlQuery query(namePool);
67
68 /* The QObject tree as XML view. */
69 {
70 query.bindVariable("root", qObjectModel.root());
71 query.setQuery(QUrl("qrc:/queries/wholeTree.xq"));
72
73 Q_ASSERT(query.isValid());
74 QByteArray output;
75 QBuffer buffer(&output);
76 buffer.open(QIODevice::WriteOnly);
77
78 /* Let's the use the formatter, so it's a bit easier to read. */
79 QXmlFormatter serializer(query, &buffer);
80
81 query.evaluateTo(&serializer);
82 buffer.close();
83
84 {
85 QFile queryFile(":/queries/wholeTree.xq");
86 queryFile.open(QIODevice::ReadOnly);
87 wholeTree->setPlainText(QString::fromUtf8(queryFile.readAll()));
88 wholeTreeOutput->setPlainText(QString::fromUtf8(output.constData()));
89 }
90 }
91
92 /* The QObject occurrence statistics as HTML view. */
93 {
94 query.setQuery(QUrl("qrc:/queries/statisticsInHTML.xq"));
95 Q_ASSERT(query.isValid());
96
97 QByteArray output;
98 QBuffer buffer(&output);
99 buffer.open(QIODevice::WriteOnly);
100
101 /* Let's the use the serializer, so we gain a bit of speed. */
102 QXmlSerializer serializer(query, &buffer);
103
104 query.evaluateTo(&serializer);
105 buffer.close();
106
107 {
108 QFile queryFile(":/queries/statisticsInHTML.xq");
109 queryFile.open(QIODevice::ReadOnly);
110 htmlQueryEdit->setPlainText(QString::fromUtf8(queryFile.readAll()));
111 htmlOutput->setHtml(QString(output));
112 }
113 }
114 }
115
on_actionAbout_triggered()116 void MainWindow::on_actionAbout_triggered()
117 {
118 QMessageBox::about(this,
119 tr("About QObject XML Model"),
120 tr("<p>The <b>QObject XML Model</b> example shows "
121 "how to use XQuery on top of data of your choice "
122 "without converting it to an XML document.</p>"
123 "<p>In this example a QSimpleXmlNodeModel subclass "
124 "makes it possible to query a QObject tree using "
125 "XQuery and retrieve the result as pointers to "
126 "QObjects, or as XML.</p>"
127 "<p>A possible use case of this could be to write "
128 "an application that tests a graphical interface "
129 "against Human Interface Guidelines, or that "
130 "queries an application's data which is modeled "
131 "using a QObject tree and dynamic properties."));
132 }
133
134
135