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diff --git a/src/quicktemplates2/qquicktheme.cpp b/src/quicktemplates2/qquicktheme.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Templates 2 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 "qquicktheme_p.h"
+#include "qquicktheme_p_p.h"
+
+#include <QtGui/qpa/qplatformtheme.h>
+#include <QtGui/private/qguiapplication_p.h>
+
+QT_BEGIN_NAMESPACE
+
+QScopedPointer<QQuickTheme> QQuickThemePrivate::instance;
+
+static QPlatformTheme::Font platformFont(QQuickTheme::Scope scope)
+{
+    switch (scope) {
+    case QQuickTheme::Button: return QPlatformTheme::PushButtonFont;
+    case QQuickTheme::CheckBox: return QPlatformTheme::CheckBoxFont;
+    case QQuickTheme::ComboBox: return QPlatformTheme::ComboMenuItemFont;
+    case QQuickTheme::GroupBox: return QPlatformTheme::GroupBoxTitleFont;
+    case QQuickTheme::ItemView: return QPlatformTheme::ItemViewFont;
+    case QQuickTheme::Label: return QPlatformTheme::LabelFont;
+    case QQuickTheme::ListView: return QPlatformTheme::ListViewFont;
+    case QQuickTheme::Menu: return QPlatformTheme::MenuFont;
+    case QQuickTheme::MenuBar: return QPlatformTheme::MenuBarFont;
+    case QQuickTheme::RadioButton: return QPlatformTheme::RadioButtonFont;
+    case QQuickTheme::SpinBox: return QPlatformTheme::EditorFont;
+    case QQuickTheme::Switch: return QPlatformTheme::CheckBoxFont;
+    case QQuickTheme::TabBar: return QPlatformTheme::TabButtonFont;
+    case QQuickTheme::TextArea: return QPlatformTheme::EditorFont;
+    case QQuickTheme::TextField: return QPlatformTheme::EditorFont;
+    case QQuickTheme::ToolBar: return QPlatformTheme::ToolButtonFont;
+    case QQuickTheme::ToolTip: return QPlatformTheme::TipLabelFont;
+    case QQuickTheme::Tumbler: return QPlatformTheme::ItemViewFont;
+    default: return QPlatformTheme::SystemFont;
+    }
+}
+
+static QPlatformTheme::Palette platformPalette(QQuickTheme::Scope scope)
+{
+    switch (scope) {
+    case QQuickTheme::Button: return QPlatformTheme::ButtonPalette;
+    case QQuickTheme::CheckBox: return QPlatformTheme::CheckBoxPalette;
+    case QQuickTheme::ComboBox: return QPlatformTheme::ComboBoxPalette;
+    case QQuickTheme::GroupBox: return QPlatformTheme::GroupBoxPalette;
+    case QQuickTheme::ItemView: return QPlatformTheme::ItemViewPalette;
+    case QQuickTheme::Label: return QPlatformTheme::LabelPalette;
+    case QQuickTheme::ListView: return QPlatformTheme::ItemViewPalette;
+    case QQuickTheme::Menu: return QPlatformTheme::MenuPalette;
+    case QQuickTheme::MenuBar: return QPlatformTheme::MenuBarPalette;
+    case QQuickTheme::RadioButton: return QPlatformTheme::RadioButtonPalette;
+    case QQuickTheme::SpinBox: return QPlatformTheme::TextLineEditPalette;
+    case QQuickTheme::Switch: return QPlatformTheme::CheckBoxPalette;
+    case QQuickTheme::TabBar: return QPlatformTheme::TabBarPalette;
+    case QQuickTheme::TextArea: return QPlatformTheme::TextEditPalette;
+    case QQuickTheme::TextField: return QPlatformTheme::TextLineEditPalette;
+    case QQuickTheme::ToolBar: return QPlatformTheme::ToolButtonPalette;
+    case QQuickTheme::ToolTip: return QPlatformTheme::ToolTipPalette;
+    case QQuickTheme::Tumbler: return QPlatformTheme::ItemViewPalette;
+    default: return QPlatformTheme::SystemPalette;
+    }
+}
+
+QQuickTheme::QQuickTheme()
+    : d_ptr(new QQuickThemePrivate)
+{
+    d_ptr->q_ptr = this;
+}
+
+QQuickTheme::~QQuickTheme()
+{
+}
+
+QQuickTheme *QQuickTheme::instance()
+{
+    return QQuickThemePrivate::instance.data();
+}
+
+QFont QQuickTheme::font(Scope scope)
+{
+    const QFont *font = nullptr;
+    if (QQuickTheme *theme = instance())
+        font = QQuickThemePrivate::get(theme)->fonts[scope].data();
+    else if (QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme())
+        font = theme->font(platformFont(scope));
+
+    if (font) {
+        QFont f = *font;
+        if (scope == System)
+            f.resolve(0);
+        return f;
+    }
+
+    if (scope != System)
+        return QQuickTheme::font(System);
+
+    return QFont();
+}
+
+QPalette QQuickTheme::palette(Scope scope)
+{
+    const QPalette *palette = nullptr;
+    if (QQuickTheme *theme = instance())
+        palette = QQuickThemePrivate::get(theme)->palettes[scope].data();
+    else if (QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme())
+        palette = theme->palette(platformPalette(scope));
+
+    if (palette) {
+        QPalette f = *palette;
+        if (scope == System)
+            f.resolve(0);
+        return f;
+    }
+
+    if (scope != System)
+        return QQuickTheme::palette(System);
+
+    return QPalette();
+}
+
+void QQuickTheme::setFont(Scope scope, const QFont &font)
+{
+    Q_D(QQuickTheme);
+    d->fonts[scope] = QSharedPointer<QFont>::create(d->defaultFont ? d->defaultFont->resolve(font) : font);
+}
+
+void QQuickTheme::setPalette(Scope scope, const QPalette &palette)
+{
+    Q_D(QQuickTheme);
+    d->palettes[scope] = QSharedPointer<QPalette>::create(d->defaultPalette ? d->defaultPalette->resolve(palette) : palette);
+}
+
+QT_END_NAMESPACE