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libfm-qt-packaging/src/core/iconinfo.h

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/*
* fm-icon.h
*
* Copyright 2009 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
* Copyright 2013 Andriy Grytsenko (LStranger) <andrej@rep.kiev.ua>
*
* This file is a part of the Libfm library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __FM2_ICON_INFO_H__
#define __FM2_ICON_INFO_H__
#include "../libfmqtglobals.h"
#include <gio/gio.h>
#include "gioptrs.h"
#include <memory>
#include <mutex>
#include <unordered_map>
#include <forward_list>
#include <QIcon>
namespace Fm {
class LIBFM_QT_API IconInfo: public std::enable_shared_from_this<IconInfo> {
public:
friend class IconEngine;
explicit IconInfo() {}
explicit IconInfo(const char* name);
explicit IconInfo(const GIconPtr gicon);
~IconInfo();
static std::shared_ptr<const IconInfo> fromName(const char* name);
static std::shared_ptr<const IconInfo> fromGIcon(GIconPtr gicon);
static std::shared_ptr<const IconInfo> fromGIcon(GIcon* gicon) {
return fromGIcon(GIconPtr{gicon, true});
}
static void updateQIcons();
GIconPtr gicon() const {
return gicon_;
}
QIcon qicon(const bool& transparent = false) const;
bool hasEmblems() const {
return G_IS_EMBLEMED_ICON(gicon_.get());
}
std::forward_list<std::shared_ptr<const IconInfo>> emblems() const;
bool isValid() const {
return gicon_ != nullptr;
}
private:
static QList<QIcon> qiconsFromNames(const char* const* names);
// actual QIcon loaded by QIcon::fromTheme
QIcon internalQicon() const;
struct GIconHash {
std::size_t operator()(GIcon* gicon) const {
return g_icon_hash(gicon);
}
};
struct GIconEqual {
bool operator()(GIcon* gicon1, GIcon* gicon2) const {
return g_icon_equal(gicon1, gicon2);
}
};
private:
GIconPtr gicon_;
mutable QIcon qicon_;
mutable QIcon qiconTransparent_;
mutable QList<QIcon> internalQicons_;
static std::unordered_map<GIcon*, std::shared_ptr<IconInfo>, GIconHash, GIconEqual> cache_;
static std::mutex mutex_;
static QList<QIcon> fallbackQicons_;
};
} // namespace Fm
Q_DECLARE_METATYPE(std::shared_ptr<const Fm::IconInfo>)
#endif /* __FM2_ICON_INFO_H__ */