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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#ifndef HELPVIEWER_H
#define HELPVIEWER_H
#include <QtCore/qglobal.h>
#include <QtCore/QUrl>
#include <QtGui/QFont>
#include <QtGui/QTextDocument>
#include <QtWidgets/QWidget>
QT_BEGIN_NAMESPACE
class HelpViewerPrivate;
class HelpViewer : public QWidget
{
Q_OBJECT
public:
enum FindFlag {
FindBackward = 0x01,
FindCaseSensitively = 0x02
};
Q_DECLARE_FLAGS(FindFlags, FindFlag)
HelpViewer(qreal zoom, QWidget *parent = nullptr);
~HelpViewer() override;
QFont viewerFont() const;
void setViewerFont(const QFont &font);
void scaleUp();
void scaleDown();
void resetScale();
qreal scale() const;
QString title() const;
QUrl source() const;
void reload();
void setSource(const QUrl &url);
void print(QPagedPaintDevice *printer);
QString selectedText() const;
bool isForwardAvailable() const;
bool isBackwardAvailable() const;
bool findText(const QString &text, FindFlags flags, bool incremental,
bool fromSearch);
static bool isLocalUrl(const QUrl &url);
static bool canOpenPage(const QString &url);
static QString mimeFromUrl(const QUrl &url);
static bool launchWithExternalApp(const QUrl &url);
// implementation detail, not a part of the interface
bool eventFilter(QObject *src, QEvent *event) override;
public slots:
#if QT_CONFIG(clipboard)
void copy();
#endif
void home();
void forward();
void backward();
signals:
void titleChanged();
void copyAvailable(bool yes);
void sourceChanged(const QUrl &url);
void forwardAvailable(bool enabled);
void backwardAvailable(bool enabled);
void highlighted(const QUrl &link);
void printRequested();
void loadFinished();
private:
void doSetSource(const QUrl &url, bool reload);
HelpViewerPrivate *d;
};
QT_END_NAMESPACE
#endif // HELPVIEWER_H
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