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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include <QtXmlPatterns>
#include "mainwindow.h"
#include "qobjectxmlmodel.h"
#include "xmlsyntaxhighlighter.h"
MainWindow::MainWindow()
{
setupUi(this);
new XmlSyntaxHighlighter(wholeTreeOutput->document());
/* Setup the font. */
{
QFont font("Courier");
font.setFixedPitch(true);
wholeTree->setFont(font);
wholeTreeOutput->setFont(font);
htmlQueryEdit->setFont(font);
}
QXmlNamePool namePool;
QObjectXmlModel qObjectModel(this, namePool);
QXmlQuery query(namePool);
/* The QObject tree as XML view. */
{
query.bindVariable("root", qObjectModel.root());
query.setQuery(QUrl("qrc:/queries/wholeTree.xq"));
Q_ASSERT(query.isValid());
QByteArray output;
QBuffer buffer(&output);
buffer.open(QIODevice::WriteOnly);
/* Let's the use the formatter, so it's a bit easier to read. */
QXmlFormatter serializer(query, &buffer);
query.evaluateTo(&serializer);
buffer.close();
{
QFile queryFile(":/queries/wholeTree.xq");
queryFile.open(QIODevice::ReadOnly);
wholeTree->setPlainText(QString::fromUtf8(queryFile.readAll()));
wholeTreeOutput->setPlainText(QString::fromUtf8(output.constData()));
}
}
/* The QObject occurrence statistics as HTML view. */
{
query.setQuery(QUrl("qrc:/queries/statisticsInHTML.xq"));
Q_ASSERT(query.isValid());
QByteArray output;
QBuffer buffer(&output);
buffer.open(QIODevice::WriteOnly);
/* Let's the use the serializer, so we gain a bit of speed. */
QXmlSerializer serializer(query, &buffer);
query.evaluateTo(&serializer);
buffer.close();
{
QFile queryFile(":/queries/statisticsInHTML.xq");
queryFile.open(QIODevice::ReadOnly);
htmlQueryEdit->setPlainText(QString::fromUtf8(queryFile.readAll()));
htmlOutput->setHtml(QString(output));
}
}
}
void MainWindow::on_actionAbout_triggered()
{
QMessageBox::about(this,
tr("About QObject XML Model"),
tr("<p>The <b>QObject XML Model</b> example shows "
"how to use XQuery on top of data of your choice "
"without converting it to an XML document.</p>"
"<p>In this example a QSimpleXmlNodeModel subclass "
"makes it possible to query a QObject tree using "
"XQuery and retrieve the result as pointers to "
"QObjects, or as XML.</p>"
"<p>A possible use case of this could be to write "
"an application that tests a graphical interface "
"against Human Interface Guidelines, or that "
"queries an application's data which is modeled "
"using a QObject tree and dynamic properties."));
}
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