qtextbrowser.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QTEXTBROWSER_H
#define QTEXTBROWSER_H
 
#include <QtWidgets/qtwidgetsglobal.h>
#include <QtWidgets/qtextedit.h>
#include <QtCore/qurl.h>
 
QT_REQUIRE_CONFIG(textbrowser);
 
QT_BEGIN_NAMESPACE
 
class QTextBrowserPrivate;
 
class Q_WIDGETS_EXPORT QTextBrowser : public QTextEdit
{
    Q_OBJECT
 
    Q_PROPERTY(QUrl source READ source WRITE setSource)
    Q_PROPERTY(QTextDocument::ResourceType sourceType READ sourceType)
    Q_OVERRIDE(bool modified SCRIPTABLE false)
    Q_OVERRIDE(bool readOnly DESIGNABLE false SCRIPTABLE false)
    Q_OVERRIDE(bool undoRedoEnabled DESIGNABLE false SCRIPTABLE false)
    Q_PROPERTY(QStringList searchPaths READ searchPaths WRITE setSearchPaths)
    Q_PROPERTY(bool openExternalLinks READ openExternalLinks WRITE setOpenExternalLinks)
    Q_PROPERTY(bool openLinks READ openLinks WRITE setOpenLinks)
 
public:
    explicit QTextBrowser(QWidget* parent = nullptr);
    virtual ~QTextBrowser();
 
    QUrl source() const;
    QTextDocument::ResourceType sourceType() const;
 
    QStringList searchPaths() const;
    void setSearchPaths(const QStringList &paths);
 
    virtual QVariant loadResource(int type, const QUrl &name) override;
 
    bool isBackwardAvailable() const;
    bool isForwardAvailable() const;
    void clearHistory();
    QString historyTitle(int) const;
    QUrl historyUrl(int) const;
    int backwardHistoryCount() const;
    int forwardHistoryCount() const;
 
    bool openExternalLinks() const;
    void setOpenExternalLinks(bool open);
 
    bool openLinks() const;
    void setOpenLinks(bool open);
 
public Q_SLOTS:
    void setSource(const QUrl &name, QTextDocument::ResourceType type = QTextDocument::UnknownResource);
    virtual void backward();
    virtual void forward();
    virtual void home();
    virtual void reload();
 
Q_SIGNALS:
    void backwardAvailable(bool);
    void forwardAvailable(bool);
    void historyChanged();
    void sourceChanged(const QUrl &);
    void highlighted(const QUrl &);
    void anchorClicked(const QUrl &);
 
protected:
    bool event(QEvent *e) override;
    virtual void keyPressEvent(QKeyEvent *ev) override;
    virtual void mouseMoveEvent(QMouseEvent *ev) override;
    virtual void mousePressEvent(QMouseEvent *ev) override;
    virtual void mouseReleaseEvent(QMouseEvent *ev) override;
    virtual void focusOutEvent(QFocusEvent *ev) override;
    virtual bool focusNextPrevChild(bool next) override;
    virtual void paintEvent(QPaintEvent *e) override;
    virtual void doSetSource(const QUrl &name, QTextDocument::ResourceType type = QTextDocument::UnknownResource);
 
private:
    Q_DISABLE_COPY(QTextBrowser)
    Q_DECLARE_PRIVATE(QTextBrowser)
    Q_PRIVATE_SLOT(d_func(), void _q_documentModified())
    Q_PRIVATE_SLOT(d_func(), void _q_activateAnchor(const QString &))
    Q_PRIVATE_SLOT(d_func(), void _q_highlightLink(const QString &))
};
 
QT_END_NAMESPACE
 
#endif // QTEXTBROWSER_H