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/****************************************************************************
**
** 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 Qt Assistant 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef HELPVIEWER_H
#define HELPVIEWER_H
#include <QtCore/QString>
#include <QtGui/QFont>
QT_BEGIN_NAMESPACE
class QUrl;
class AbstractHelpViewer
{
public:
AbstractHelpViewer();
~AbstractHelpViewer();
virtual QFont viewerFont() const = 0;
virtual void setViewerFont(const QFont &font) = 0;
virtual void scaleUp() = 0;
virtual void scaleDown() = 0;
virtual void resetScale() = 0;
virtual qreal scale() const = 0;
static QString AboutBlank;
static QString LocalHelpFile;
static QString PageNotFoundMessage;
static bool isLocalUrl(const QUrl &url);
static bool canOpenPage(const QString &url);
static bool launchWithExternalApp(const QUrl &url);
};
QT_END_NAMESPACE
#endif // HELPVIEWER_H
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