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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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** This file is part of the documentation of the Qt Toolkit.+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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/*+
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handler.cpp+
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+
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Provides a handler for processing XML elements found by the reader.+
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+
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The handler stores the names of elements it finds and their indentation+
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levels. The indentation level is initially set to zero.+
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When a starting element is found, the indentation level is increased;+
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when an ending element is found, the indentation level is decreased.+
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*/+
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+
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#include <QDebug>+
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#include "handler.h"+
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+
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/*!+
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    Reset the state of the handler to ensure that new documents are+
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    read correctly.+
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+
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    We return true to indicate that parsing should continue.+
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*/+
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+
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bool Handler::startDocument()+
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{+
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    elementName.clear();+
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    elementIndentation.clear();+
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    indentationLevel = 0;+
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+
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    return true;+
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}+
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+
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/*!+
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    Process each starting element in the XML document.+
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+
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    Append the element name to the list of elements found; add its+
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    corresponding indentation level to the list of indentation levels.+
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+
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    Increase the level of indentation by one column.+
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+
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    We return true to indicate that parsing should continue.+
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*/+
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+
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bool Handler::startElement(const QString &, const QString &,+
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    const QString & qName, const QXmlAttributes &)+
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{+
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    elementName.append(qName);+
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    elementIndentation.append(indentationLevel);+
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    indentationLevel += 1;+
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+
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    return true;+
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}+
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+
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/*!+
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    Process each ending element in the XML document.+
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+
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    Decrease the level of indentation by one column.+
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+
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    We return true to indicate that parsing should continue.+
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*/+
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+
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bool Handler::endElement(const QString &, const QString &,+
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    const QString &)+
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{+
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    indentationLevel -= 1;+
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+
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    return true;+
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}+
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+
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/*!+
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    Report a fatal parsing error, and return false to indicate to the reader+
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    that parsing should stop.+
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*/+
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+
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bool Handler::fatalError (const QXmlParseException & exception)+
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{+
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    qWarning() << QString("Fatal error on line %1, column %2: %3").arg(+
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        exception.lineNumber()).arg(exception.columnNumber()).arg(+
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        exception.message());+
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+
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    return false;+
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}+
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+
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/*!+
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    Return the list of element names found.+
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*/+
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+
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QStringList& Handler::names ()+
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{+
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    return elementName;+
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}+
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+
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/*!+
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    Return the list of indentations used for each element found.+
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*/+
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+
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QList<int>& Handler::indentations ()+
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{+
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    return elementIndentation;+
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}+
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