/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the documentation 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 Technology Preview License Agreement accompanying

** this package.

**

** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

/*

handler.cpp

Provides a handler for processing XML elements found by the reader.

The handler stores the names of elements it finds and their indentation

levels. The indentation level is initially set to zero.

When a starting element is found, the indentation level is increased;

when an ending element is found, the indentation level is decreased.

*/

#include <QDebug>

#include "handler.h"

/*!

    Reset the state of the handler to ensure that new documents are

    read correctly.

    We return true to indicate that parsing should continue.

*/

bool Handler::startDocument()

{

    elementName.clear();

    elementIndentation.clear();

    indentationLevel = 0;

    return true;

}

/*!

    Process each starting element in the XML document.

    Append the element name to the list of elements found; add its

    corresponding indentation level to the list of indentation levels.

    Increase the level of indentation by one column.

    We return true to indicate that parsing should continue.

*/

bool Handler::startElement(const QString &, const QString &,

    const QString & qName, const QXmlAttributes &)

{

    elementName.append(qName);

    elementIndentation.append(indentationLevel);

    indentationLevel += 1;

    return true;

}

/*!

    Process each ending element in the XML document.

    Decrease the level of indentation by one column.

    We return true to indicate that parsing should continue.

*/

bool Handler::endElement(const QString &, const QString &,

    const QString &)

{

    indentationLevel -= 1;

    return true;

}

/*!

    Report a fatal parsing error, and return false to indicate to the reader

    that parsing should stop.

*/

bool Handler::fatalError (const QXmlParseException & exception)

{

    qWarning() << QString("Fatal error on line %1, column %2: %3").arg(

        exception.lineNumber()).arg(exception.columnNumber()).arg(

        exception.message());

    return false;

}

/*!

    Return the list of element names found.

*/

QStringList& Handler::names ()

{

    return elementName;

}

/*!

    Return the list of indentations used for each element found.

*/

QList<int>& Handler::indentations ()

{

    return elementIndentation;

}