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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.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#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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