/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:BSD$+
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** You may use this file under the terms of the BSD license as follows:+
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**+
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** "Redistribution and use in source and binary forms, with or without+
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** modification, are permitted provided that the following conditions are+
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** met:+
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**   * Redistributions of source code must retain the above copyright+
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**     notice, this list of conditions and the following disclaimer.+
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**   * Redistributions in binary form must reproduce the above copyright+
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**     notice, this list of conditions and the following disclaimer in+
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**     the documentation and/or other materials provided with the+
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**     distribution.+
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**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor+
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**     the names of its contributors may be used to endorse or promote+
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**     products derived from this software without specific prior written+
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**     permission.+
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**+
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QtGui>+
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#include <QtXmlPatterns>+
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+
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#include "mainwindow.h"+
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#include "qobjectxmlmodel.h"+
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#include "xmlsyntaxhighlighter.h"+
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+
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MainWindow::MainWindow()+
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{+
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    setupUi(this);+
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+
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    new XmlSyntaxHighlighter(wholeTreeOutput->document());+
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+
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    /* Setup the font. */+
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    {+
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        QFont font("Courier");+
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        font.setFixedPitch(true);+
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+
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        wholeTree->setFont(font);+
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        wholeTreeOutput->setFont(font);+
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        htmlQueryEdit->setFont(font);+
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    }+
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+
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    QXmlNamePool namePool;+
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    QObjectXmlModel qObjectModel(this, namePool);+
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    QXmlQuery query(namePool);+
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+
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    /* The QObject tree as XML view. */+
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    {+
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        query.bindVariable("root", qObjectModel.root());+
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        query.setQuery(QUrl("qrc:/queries/wholeTree.xq"));+
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+
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        Q_ASSERT(query.isValid());+
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        QByteArray output;+
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        QBuffer buffer(&output);+
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        buffer.open(QIODevice::WriteOnly);+
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+
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        /* Let's the use the formatter, so it's a bit easier to read. */+
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        QXmlFormatter serializer(query, &buffer);+
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+
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        query.evaluateTo(&serializer);+
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        buffer.close();+
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+
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        {+
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            QFile queryFile(":/queries/wholeTree.xq");+
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            queryFile.open(QIODevice::ReadOnly);+
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            wholeTree->setPlainText(QString::fromUtf8(queryFile.readAll()));+
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            wholeTreeOutput->setPlainText(QString::fromUtf8(output.constData()));+
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        }+
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    }+
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+
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    /* The QObject occurrence statistics as HTML view. */+
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    {+
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        query.setQuery(QUrl("qrc:/queries/statisticsInHTML.xq"));+
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        Q_ASSERT(query.isValid());+
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+
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        QByteArray output;+
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        QBuffer buffer(&output);+
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        buffer.open(QIODevice::WriteOnly);+
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+
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        /* Let's the use the serializer, so we gain a bit of speed. */+
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        QXmlSerializer serializer(query, &buffer);+
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+
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        query.evaluateTo(&serializer);+
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        buffer.close();+
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+
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        {+
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            QFile queryFile(":/queries/statisticsInHTML.xq");+
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            queryFile.open(QIODevice::ReadOnly);+
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            htmlQueryEdit->setPlainText(QString::fromUtf8(queryFile.readAll()));+
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            htmlOutput->setHtml(QString(output));+
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        }+
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    }+
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}+
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+
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void MainWindow::on_actionAbout_triggered()+
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{+
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    QMessageBox::about(this,+
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                       tr("About QObject XML Model"),+
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                       tr("<p>The <b>QObject XML Model</b> example shows "+
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                          "how to use XQuery on top of data of your choice "+
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                          "without converting it to an XML document.</p>"+
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                          "<p>In this example a QSimpleXmlNodeModel subclass "+
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                          "makes it possible to query a QObject tree using "+
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                          "XQuery and retrieve the result as pointers to "+
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                          "QObjects, or as XML.</p>"+
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                          "<p>A possible use case of this could be to write "+
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                          "an application that tests a graphical interface "+
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                          "against Human Interface Guidelines, or that "+
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                          "queries an application's data which is modeled "+
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                          "using a QObject tree and dynamic properties."));+
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}+
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+
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+
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