diff options
author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:18:55 (GMT) |
---|---|---|
committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:18:55 (GMT) |
commit | e5fcad302d86d316390c6b0f62759a067313e8a9 (patch) | |
tree | c2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/xmlpatterns/qobjectxmlmodel/mainwindow.cpp | |
download | Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2 |
Long live Qt 4.5!
Diffstat (limited to 'examples/xmlpatterns/qobjectxmlmodel/mainwindow.cpp')
-rw-r--r-- | examples/xmlpatterns/qobjectxmlmodel/mainwindow.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/examples/xmlpatterns/qobjectxmlmodel/mainwindow.cpp b/examples/xmlpatterns/qobjectxmlmodel/mainwindow.cpp new file mode 100644 index 0000000..056ebae --- /dev/null +++ b/examples/xmlpatterns/qobjectxmlmodel/mainwindow.cpp @@ -0,0 +1,135 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@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.")); +} + + |