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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 HELPVIEWERQTB_H
#define HELPVIEWERQTB_H
#include "helpviewer.h"
#include <QtCore/QUrl>
#include <QtCore/QVariant>
#include <QtGui/QTextBrowser>
QT_BEGIN_NAMESPACE
class CentralWidget;
class HelpEngineWrapper;
class QContextMenuEvent;
class QKeyEvent;
class QMouseEvent;
class HelpViewer : public QTextBrowser, public AbstractHelpViewer
{
Q_OBJECT
public:
HelpViewer(CentralWidget *parent, qreal zoom = 0.0);
~HelpViewer();
QFont viewerFont() const;
void setViewerFont(const QFont &font);
void scaleUp();
void scaleDown();
void resetScale();
qreal scale() const { return zoomCount; }
bool handleForwardBackwardMouseButtons(QMouseEvent *e);
void setSource(const QUrl &url);
inline bool hasSelection() const
{ return textCursor().hasSelection(); }
public Q_SLOTS:
void home();
protected:
void wheelEvent(QWheelEvent *e);
bool eventFilter(QObject *obj, QEvent *event);
private:
QVariant loadResource(int type, const QUrl &name);
void openLinkInNewTab(const QString &link);
bool hasAnchorAt(const QPoint& pos);
void contextMenuEvent(QContextMenuEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
void keyPressEvent(QKeyEvent *e);
void mousePressEvent(QMouseEvent *e);
private slots:
void openLinkInNewTab();
private:
int zoomCount;
bool controlPressed;
QString lastAnchor;
CentralWidget* parentWidget;
HelpEngineWrapper &helpEngine;
bool forceFont;
};
QT_END_NAMESPACE
#endif // HELPVIEWERQTB_H
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