qt-everywhere-src-5.15.1/qtbase/src/widgets/dialogs/qfontdialog.h

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QFONTDIALOG_H
#define QFONTDIALOG_H

#include <QtWidgets/qtwidgetsglobal.h>
#include <QtGui/qwindowdefs.h>
#include <QtGui/qfont.h>

#include <QtWidgets/qdialog.h>

QT_REQUIRE_CONFIG(fontdialog);

QT_BEGIN_NAMESPACE

class QFontDialogPrivate;

class Q_WIDGETS_EXPORT QFontDialog : public QDialog
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QFontDialog)
    Q_PROPERTY(QFont currentFont READ currentFont WRITE setCurrentFont NOTIFY currentFontChanged)
    Q_PROPERTY(FontDialogOptions options READ options WRITE setOptions)

public:
    enum FontDialogOption {
        NoButtons           = 0x00000001,
        DontUseNativeDialog = 0x00000002,
        ScalableFonts       = 0x00000004,
        NonScalableFonts    = 0x00000008,
        MonospacedFonts     = 0x00000010,
        ProportionalFonts   = 0x00000020
    };
    Q_ENUM(FontDialogOption)

    Q_DECLARE_FLAGS(FontDialogOptions, FontDialogOption)

    explicit QFontDialog(QWidget *parent = nullptr);
    explicit QFontDialog(const QFont &initial, QWidget *parent = nullptr);
    ~QFontDialog();

    void setCurrentFont(const QFont &font);
    QFont currentFont() const;

    QFont selectedFont() const;

    void setOption(FontDialogOption option, bool on = true);
    bool testOption(FontDialogOption option) const;
    void setOptions(FontDialogOptions options);
    FontDialogOptions options() const;

    using QDialog::open;
    void open(QObject *receiver, const char *member);

    void setVisible(bool visible) override;

    static QFont getFont(bool *ok, QWidget *parent = nullptr);
    static QFont getFont(bool *ok, const QFont &initial, QWidget *parent = nullptr, const QString &title = QString(),
                         FontDialogOptions options = FontDialogOptions());

Q_SIGNALS:
    void currentFontChanged(const QFont &font);
    void fontSelected(const QFont &font);

protected:
    void changeEvent(QEvent *event) override;
    void done(int result) override;
    bool eventFilter(QObject *object, QEvent *event) override;

private:
    Q_DISABLE_COPY(QFontDialog)

    Q_PRIVATE_SLOT(d_func(), void _q_sizeChanged(const QString &))
    Q_PRIVATE_SLOT(d_func(), void _q_familyHighlighted(int))
    Q_PRIVATE_SLOT(d_func(), void _q_writingSystemHighlighted(int))
    Q_PRIVATE_SLOT(d_func(), void _q_styleHighlighted(int))
    Q_PRIVATE_SLOT(d_func(), void _q_sizeHighlighted(int))
    Q_PRIVATE_SLOT(d_func(), void _q_updateSample())
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QFontDialog::FontDialogOptions)

QT_END_NAMESPACE

#endif // QFONTDIALOG_H