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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Labs Platform module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickplatformfontdialog_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \qmltype FontDialog
+    \inherits Dialog
+    \instantiates QQuickPlatformFontDialog
+    \inqmlmodule Qt.labs.platform
+    \since 5.8
+    \brief A native font dialog.
+
+    The FontDialog type provides a QML API for native platform font dialogs.
+
+    \image qtlabsplatform-fontdialog-gtk.png
+
+    To show a font dialog, construct an instance of FontDialog, set the
+    desired properties, and call \l {Dialog::}{open()}. The \l currentFont
+    property can be used to determine the currently selected font in the
+    dialog. The \l font property is updated only after the final selection
+    has been made by accepting the dialog.
+
+    \code
+    MenuItem {
+        text: "Font"
+        onTriggered: fontDialog.open()
+    }
+
+    FontDialog {
+        id: fontDialog
+        currentFont.family: document.font
+    }
+
+    MyDocument {
+        id: document
+        font: fontDialog.font
+    }
+    \endcode
+
+    \section2 Availability
+
+    A native platform font dialog is currently available on the following platforms:
+
+    \list
+    \li macOS
+    \li Linux (when running with the GTK+ platform theme)
+    \endlist
+
+    \input includes/widgets.qdocinc 1
+
+    \labs
+*/
+
+QQuickPlatformFontDialog::QQuickPlatformFontDialog(QObject *parent)
+    : QQuickPlatformDialog(QPlatformTheme::FontDialog, parent),
+      m_options(QFontDialogOptions::create())
+{
+}
+
+/*!
+    \qmlproperty font Qt.labs.platform::FontDialog::font
+
+    This property holds the final accepted font.
+
+    Unlike the \l currentFont property, the \c font property is not updated
+    while the user is selecting fonts in the dialog, but only after the final
+    selection has been made. That is, when the user has clicked \uicontrol OK
+    to accept a font. Alternatively, the \l {Dialog::}{accepted()} signal
+    can be handled to get the final selection.
+
+    \sa currentFont, {Dialog::}{accepted()}
+*/
+QFont QQuickPlatformFontDialog::font() const
+{
+    return m_font;
+}
+
+void QQuickPlatformFontDialog::setFont(const QFont &font)
+{
+    if (m_font == font)
+        return;
+
+    m_font = font;
+    setCurrentFont(font);
+    emit fontChanged();
+}
+
+/*!
+    \qmlproperty font Qt.labs.platform::FontDialog::currentFont
+
+    This property holds the currently selected font in the dialog.
+
+    Unlike the \l font property, the \c currentFont property is updated
+    while the user is selecting fonts in the dialog, even before the final
+    selection has been made.
+
+    \sa font
+*/
+QFont QQuickPlatformFontDialog::currentFont() const
+{
+    if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(handle()))
+        return fontDialog->currentFont();
+    return m_currentFont;
+}
+
+void QQuickPlatformFontDialog::setCurrentFont(const QFont &font)
+{
+    if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(handle()))
+        fontDialog->setCurrentFont(font);
+    m_currentFont = font;
+}
+
+/*!
+    \qmlproperty flags Qt.labs.platform::FontDialog::options
+
+    This property holds the various options that affect the look and feel of the dialog.
+
+    By default, all options are disabled.
+
+    Options should be set before showing the dialog. Setting them while the dialog is
+    visible is not guaranteed to have an immediate effect on the dialog (depending on
+    the option and on the platform).
+
+    Available options:
+    \value FontDialog.ScalableFonts Show scalable fonts.
+    \value FontDialog.NonScalableFonts Show non-scalable fonts.
+    \value FontDialog.MonospacedFonts Show monospaced fonts.
+    \value FontDialog.ProportionalFonts Show proportional fonts.
+    \value FontDialog.NoButtons Don't display \uicontrol OK and \uicontrol Cancel buttons (useful for "live dialogs").
+*/
+QFontDialogOptions::FontDialogOptions QQuickPlatformFontDialog::options() const
+{
+    return m_options->options();
+}
+
+void QQuickPlatformFontDialog::setOptions(QFontDialogOptions::FontDialogOptions options)
+{
+    if (options == m_options->options())
+        return;
+
+    m_options->setOptions(options);
+    emit optionsChanged();
+}
+
+bool QQuickPlatformFontDialog::useNativeDialog() const
+{
+    return QQuickPlatformDialog::useNativeDialog()
+            && !m_options->testOption(QFontDialogOptions::DontUseNativeDialog);
+}
+
+void QQuickPlatformFontDialog::onCreate(QPlatformDialogHelper *dialog)
+{
+    if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(dialog)) {
+        connect(fontDialog, &QPlatformFontDialogHelper::currentFontChanged, this, &QQuickPlatformFontDialog::currentFontChanged);
+        fontDialog->setOptions(m_options);
+    }
+}
+
+void QQuickPlatformFontDialog::onShow(QPlatformDialogHelper *dialog)
+{
+    m_options->setWindowTitle(title());
+    if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(dialog))
+        fontDialog->setOptions(m_options);
+}
+
+void QQuickPlatformFontDialog::accept()
+{
+    setFont(currentFont());
+    QQuickPlatformDialog::accept();
+}
+
+QT_END_NAMESPACE