1 /****************************************************************************
3 ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
6 ** This file is part of the examples of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:BSD$
9 ** You may use this file under the terms of the BSD license as follows:
11 ** "Redistribution and use in source and binary forms, with or without
12 ** modification, are permitted provided that the following conditions are
14 ** * Redistributions of source code must retain the above copyright
15 ** notice, this list of conditions and the following disclaimer.
16 ** * Redistributions in binary form must reproduce the above copyright
17 ** notice, this list of conditions and the following disclaimer in
18 ** the documentation and/or other materials provided with the
20 ** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
21 ** of its contributors may be used to endorse or promote products derived
22 ** from this software without specific prior written permission.
25 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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33 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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35 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
39 ****************************************************************************/
41 #include <QFileDialog>
42 #include <QMessageBox>
43 #include <QLibraryInfo>
44 #include <QtXmlPatterns>
46 #include "mainwindow.h"
47 #include "xmlsyntaxhighlighter.h"
50 MainWindow::MainWindow() : m_fileTree(m_namePool)
54 new XmlSyntaxHighlighter(fileTree->document());
58 QFont font("Courier",10);
59 font.setFixedPitch(true);
61 fileTree->setFont(font);
62 queryEdit->setFont(font);
63 output->setFont(font);
66 const QString dir(QLibraryInfo::location(QLibraryInfo::ExamplesPath) + "/xmlpatterns/filetree");
69 if (QDir(dir).exists())
72 fileTree->setPlainText(tr("Use the Open menu entry to select a directory."));
74 const QStringList queries(QDir(":/queries/", "*.xq").entryList());
75 int len = queries.count();
77 for (int i = 0; i < len; ++i)
78 queryBox->addItem(queries.at(i));
84 void MainWindow::on_queryBox_currentIndexChanged()
86 QFile queryFile(":/queries/" + queryBox->currentText());
87 queryFile.open(QIODevice::ReadOnly);
89 queryEdit->setPlainText(QString::fromLatin1(queryFile.readAll()));
95 void MainWindow::evaluateResult()
97 if (queryBox->currentText().isEmpty() || m_fileNode.isNull())
100 QXmlQuery query(m_namePool);
101 query.bindVariable("fileTree", m_fileNode);
102 query.setQuery(QUrl("qrc:/queries/" + queryBox->currentText()));
104 QByteArray formatterOutput;
105 QBuffer buffer(&formatterOutput);
106 buffer.open(QIODevice::WriteOnly);
108 QXmlFormatter formatter(query, &buffer);
109 query.evaluateTo(&formatter);
111 output->setText(QString::fromLatin1(formatterOutput.constData()));
116 void MainWindow::on_actionOpenDirectory_triggered()
118 const QString directoryName = QFileDialog::getExistingDirectory(this);
119 if (!directoryName.isEmpty())
120 loadDirectory(directoryName);
126 void MainWindow::loadDirectory(const QString &directory)
128 Q_ASSERT(QDir(directory).exists());
130 m_fileNode = m_fileTree.nodeFor(directory);
133 QXmlQuery query(m_namePool);
134 query.bindVariable("fileTree", m_fileNode);
135 query.setQuery(QUrl("qrc:/queries/wholeTree.xq"));
138 QBuffer buffer(&output);
139 buffer.open(QIODevice::WriteOnly);
141 QXmlFormatter formatter(query, &buffer);
142 query.evaluateTo(&formatter);
144 treeInfo->setText(tr("Model of %1 output as XML.").arg(directory));
145 fileTree->setText(QString::fromLatin1(output.constData()));
152 void MainWindow::on_actionAbout_triggered()
154 QMessageBox::about(this, tr("About File Tree"),
155 tr("<p>Select <b>File->Open Directory</b> and "
156 "choose a directory. The directory is then "
157 "loaded into the model, and the model is "
158 "displayed on the left as XML.</p>"
160 "<p>From the query menu on the right, select "
161 "a query. The query is displayed and then run "
162 "on the model. The results are displayed below "