NOISSUE reorganize and document libraries
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Petr Mrázek
219
libraries/iconfix/internal/qiconloader_p.h
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219
libraries/iconfix/internal/qiconloader_p.h
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#pragma once
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#include <QtCore/qglobal.h>
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtGui/QIcon>
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#include <QtGui/QIconEngine>
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#include <QtGui/QPixmapCache>
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#include <QtCore/QHash>
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#include <QtCore/QVector>
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#include <QtCore/QTypeInfo>
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namespace QtXdg
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{
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class QIconLoader;
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struct QIconDirInfo
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{
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enum Type
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{
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Fixed,
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Scalable,
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Threshold
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};
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QIconDirInfo(const QString &_path = QString())
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: path(_path), size(0), maxSize(0), minSize(0), threshold(0), type(Threshold)
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{
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}
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QString path;
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short size;
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short maxSize;
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short minSize;
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short threshold;
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Type type : 4;
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};
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class QIconLoaderEngineEntry
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{
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public:
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virtual ~QIconLoaderEngineEntry()
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{
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}
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virtual QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) = 0;
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QString filename;
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QIconDirInfo dir;
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static int count;
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};
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struct ScalableEntry : public QIconLoaderEngineEntry
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{
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QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) Q_DECL_OVERRIDE;
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QIcon svgIcon;
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};
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struct PixmapEntry : public QIconLoaderEngineEntry
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{
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QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) Q_DECL_OVERRIDE;
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QPixmap basePixmap;
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};
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typedef QList<QIconLoaderEngineEntry *> QThemeIconEntries;
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// class QIconLoaderEngine : public QIconEngine
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class QIconLoaderEngineFixed : public QIconEngine
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{
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public:
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QIconLoaderEngineFixed(const QString &iconName = QString());
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~QIconLoaderEngineFixed();
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void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state);
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QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state);
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QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state);
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QIconEngine *clone() const;
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bool read(QDataStream &in);
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bool write(QDataStream &out) const;
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private:
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QString key() const;
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bool hasIcon() const;
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void ensureLoaded();
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void virtual_hook(int id, void *data);
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QIconLoaderEngineEntry *entryForSize(const QSize &size);
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QIconLoaderEngineFixed(const QIconLoaderEngineFixed &other);
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QThemeIconEntries m_entries;
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QString m_iconName;
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uint m_key;
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friend class QIconLoader;
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};
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class QIconTheme
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{
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public:
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QIconTheme(const QString &name);
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QIconTheme() : m_valid(false)
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{
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}
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QStringList parents()
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{
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return m_parents;
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}
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QVector<QIconDirInfo> keyList()
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{
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return m_keyList;
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}
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QString contentDir()
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{
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return m_contentDir;
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}
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QStringList contentDirs()
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{
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return m_contentDirs;
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}
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bool isValid()
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{
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return m_valid;
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}
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private:
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QString m_contentDir;
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QStringList m_contentDirs;
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QVector<QIconDirInfo> m_keyList;
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QStringList m_parents;
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bool m_valid;
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};
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class QIconLoader
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{
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public:
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QIconLoader();
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QThemeIconEntries loadIcon(const QString &iconName) const;
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uint themeKey() const
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{
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return m_themeKey;
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}
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QString themeName() const
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{
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return m_userTheme.isEmpty() ? m_systemTheme : m_userTheme;
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}
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void setThemeName(const QString &themeName);
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QIconTheme theme()
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{
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return themeList.value(themeName());
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}
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void setThemeSearchPath(const QStringList &searchPaths);
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QStringList themeSearchPaths() const;
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QIconDirInfo dirInfo(int dirindex);
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static QIconLoader *instance();
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void updateSystemTheme();
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void invalidateKey()
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{
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m_themeKey++;
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}
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void ensureInitialized();
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private:
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QThemeIconEntries findIconHelper(const QString &themeName, const QString &iconName,
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QStringList &visited) const;
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uint m_themeKey;
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bool m_supportsSvg;
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bool m_initialized;
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mutable QString m_userTheme;
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mutable QString m_systemTheme;
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mutable QStringList m_iconDirs;
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mutable QHash<QString, QIconTheme> themeList;
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};
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} // QtXdg
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// Note: class template specialization of 'QTypeInfo' must occur at
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// global scope
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Q_DECLARE_TYPEINFO(QtXdg::QIconDirInfo, Q_MOVABLE_TYPE);
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