fontpanel_p.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
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the Qt tools.  This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
 
#ifndef FONTPANEL_H
#define FONTPANEL_H
 
#include <QtWidgets/qgroupbox.h>
 
#include <QtGui/qfont.h>
#include <QtGui/qfontdatabase.h>
 
QT_BEGIN_NAMESPACE
 
class QComboBox;
class QFontComboBox;
class QTimer;
class QLineEdit;
 
class FontPanel: public QGroupBox
{
    Q_OBJECT
public:
    explicit FontPanel(QWidget *parentWidget = nullptr);
 
    QFont selectedFont() const;
    void setSelectedFont(const QFont &);
 
    QFontDatabase::WritingSystem writingSystem() const;
    void setWritingSystem(QFontDatabase::WritingSystem ws);
 
private slots:
    void slotWritingSystemChanged(int);
    void slotFamilyChanged(const QFont &);
    void slotStyleChanged(int);
    void slotPointSizeChanged(int);
    void slotUpdatePreviewFont();
 
private:
    QString family() const;
    QString styleString() const;
    int pointSize() const;
    int closestPointSizeIndex(int ps) const;
 
    void updateWritingSystem(QFontDatabase::WritingSystem ws);
    void updateFamily(const QString &family);
    void updatePointSizes(const QString &family, const QString &style);
    void delayedPreviewFontUpdate();
 
    QLineEdit *m_previewLineEdit;
    QComboBox *m_writingSystemComboBox;
    QFontComboBox* m_familyComboBox;
    QComboBox *m_styleComboBox;
    QComboBox *m_pointSizeComboBox;
    QTimer *m_previewFontUpdateTimer = nullptr;
};
 
QT_END_NAMESPACE
 
#endif // FONTPANEL_H