Alessandro Bonazzi
8c43d5cf2f
Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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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 The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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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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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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#include <QtXmlPatterns>
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#include "querymainwindow.h"
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#include "xmlsyntaxhighlighter.h"
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//! [0]
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QueryMainWindow::QueryMainWindow() : ui_defaultQueries(0)
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{
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setupUi(this);
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new XmlSyntaxHighlighter(findChild<QTextEdit*>("inputTextEdit")->document());
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new XmlSyntaxHighlighter(findChild<QTextEdit*>("outputTextEdit")->document());
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ui_defaultQueries = findChild<QComboBox*>("defaultQueries");
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QMetaObject::connectSlotsByName(this);
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connect(ui_defaultQueries, SIGNAL(currentIndexChanged(int)), SLOT(displayQuery(int)));
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loadInputFile();
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const QStringList queries(QDir(":/files/", "*.xq").entryList());
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int len = queries.count();
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for(int i = 0; i < len; ++i)
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ui_defaultQueries->addItem(queries.at(i));
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}
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//! [0]
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//! [1]
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void QueryMainWindow::displayQuery(int index)
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{
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QFile queryFile(QString(":files/") + ui_defaultQueries->itemText(index));
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queryFile.open(QIODevice::ReadOnly);
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const QString query(QString::fromLatin1(queryFile.readAll()));
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findChild<QTextEdit*>("queryTextEdit")->setPlainText(query);
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evaluate(query);
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}
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//! [1]
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void QueryMainWindow::loadInputFile()
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{
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QFile forView;
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forView.setFileName(":/files/cookbook.xml");
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if (!forView.open(QIODevice::ReadOnly)) {
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QMessageBox::information(this,
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tr("Unable to open file"), forView.errorString());
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return;
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}
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QTextStream in(&forView);
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QString inputDocument = in.readAll();
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findChild<QTextEdit*>("inputTextEdit")->setPlainText(inputDocument);
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}
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//! [2]
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void QueryMainWindow::evaluate(const QString &str)
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{
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QFile sourceDocument;
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sourceDocument.setFileName(":/files/cookbook.xml");
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sourceDocument.open(QIODevice::ReadOnly);
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QByteArray outArray;
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QBuffer buffer(&outArray);
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buffer.open(QIODevice::ReadWrite);
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QXmlQuery query;
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query.bindVariable("inputDocument", &sourceDocument);
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query.setQuery(str);
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if (!query.isValid())
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return;
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QXmlFormatter formatter(query, &buffer);
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if (!query.evaluateTo(&formatter))
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return;
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buffer.close();
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findChild<QTextEdit*>("outputTextEdit")->setPlainText(QString::fromUtf8(outArray.constData()));
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}
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//! [2]
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