summaryrefslogtreecommitdiffstats
path: root/examples/xmlpatterns/filetree/mainwindow.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'examples/xmlpatterns/filetree/mainwindow.cpp')
-rw-r--r--examples/xmlpatterns/filetree/mainwindow.cpp166
1 files changed, 166 insertions, 0 deletions
diff --git a/examples/xmlpatterns/filetree/mainwindow.cpp b/examples/xmlpatterns/filetree/mainwindow.cpp
new file mode 100644
index 0000000..341128a
--- /dev/null
+++ b/examples/xmlpatterns/filetree/mainwindow.cpp
@@ -0,0 +1,166 @@
+/****************************************************************************
+**
+** 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 <QLibraryInfo>
+#include <QtXmlPatterns>
+
+#include "mainwindow.h"
+#include "xmlsyntaxhighlighter.h"
+
+//! [0]
+MainWindow::MainWindow() : m_fileTree(m_namePool)
+{
+ setupUi(this);
+
+ new XmlSyntaxHighlighter(fileTree->document());
+
+ // Set up the font.
+ {
+ QFont font("Courier",10);
+ font.setFixedPitch(true);
+
+ fileTree->setFont(font);
+ queryEdit->setFont(font);
+ output->setFont(font);
+ }
+
+ const QString dir(QLibraryInfo::location(QLibraryInfo::ExamplesPath) + "/xmlpatterns/filetree");
+ qDebug() << dir;
+
+ if (QDir(dir).exists())
+ loadDirectory(dir);
+ else
+ fileTree->setPlainText(tr("Use the Open menu entry to select a directory."));
+
+ const QStringList queries(QDir(":/queries/", "*.xq").entryList());
+ int len = queries.count();
+
+ for (int i = 0; i < len; ++i)
+ queryBox->addItem(queries.at(i));
+
+}
+//! [0]
+
+//! [2]
+void MainWindow::on_queryBox_currentIndexChanged()
+{
+ QFile queryFile(":/queries/" + queryBox->currentText());
+ queryFile.open(QIODevice::ReadOnly);
+
+ queryEdit->setPlainText(QString::fromLatin1(queryFile.readAll()));
+ evaluateResult();
+}
+//! [2]
+
+//! [3]
+void MainWindow::evaluateResult()
+{
+ if (queryBox->currentText().isEmpty())
+ return;
+
+ QXmlQuery query(m_namePool);
+ query.bindVariable("fileTree", m_fileNode);
+ query.setQuery(QUrl("qrc:/queries/" + queryBox->currentText()));
+
+ QByteArray formatterOutput;
+ QBuffer buffer(&formatterOutput);
+ buffer.open(QIODevice::WriteOnly);
+
+ QXmlFormatter formatter(query, &buffer);
+ query.evaluateTo(&formatter);
+
+ output->setText(QString::fromLatin1(formatterOutput.constData()));
+}
+//! [3]
+
+//! [1]
+void MainWindow::on_actionOpenDirectory_triggered()
+{
+ const QString directoryName = QFileDialog::getExistingDirectory(this);
+ if (!directoryName.isEmpty())
+ loadDirectory(directoryName);
+}
+//! [1]
+
+//! [4]
+//! [5]
+void MainWindow::loadDirectory(const QString &directory)
+{
+ Q_ASSERT(QDir(directory).exists());
+
+ m_fileNode = m_fileTree.nodeFor(directory);
+//! [5]
+
+ QXmlQuery query(m_namePool);
+ query.bindVariable("fileTree", m_fileNode);
+ query.setQuery(QUrl("qrc:/queries/wholeTree.xq"));
+
+ QByteArray output;
+ QBuffer buffer(&output);
+ buffer.open(QIODevice::WriteOnly);
+
+ QXmlFormatter formatter(query, &buffer);
+ query.evaluateTo(&formatter);
+
+ treeInfo->setText((QString(tr("Model of %1 output as XML.")).arg(directory)));
+ fileTree->setText(QString::fromLatin1(output.constData()));
+ evaluateResult();
+//! [6]
+}
+//! [6]
+//! [4]
+
+void MainWindow::on_actionAbout_triggered()
+{
+ QMessageBox::about(this, tr("About File Tree"),
+ tr("<p>Select <b>File->Open Directory</b> and "
+ "choose a directory. The directory is then "
+ "loaded into the model, and the model is "
+ "displayed on the left as XML.</p>"
+
+ "<p>From the query menu on the right, select "
+ "a query. The query is displayed and then run "
+ "on the model. The results are displayed below "
+ "the query.</p>"));
+}
+
+