/**************************************************************************** ** ** Copyright (C) 2011 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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