/*
 *  This file is part of RawTherapee.
 *
 *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
 *  Copyright (c) 2018 Jean-Christophe FRISCH <natureh.510@gmail.com>
 *  Copyright (c) 2022 Pierre CABRERA <pierre.cab@gmail.com>
 *
 *  RawTherapee is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  RawTherapee 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with RawTherapee.  If not, see <https://www.gnu.org/licenses/>.
 */
#pragma once

#include "rtsigc.h"

#include <gtkmm.h>

class RTSurface;

class RTImageCache final
{
private:
    static std::map<std::pair<Glib::ustring, Gtk::IconSize>, std::shared_ptr<RTSurface>> cache;

public:
    static std::shared_ptr<RTSurface> getCachedSurface(const Glib::ustring &icon_name, const Gtk::IconSize icon_size);
    static void updateCache();
};

/**
 * @brief A derived class of Gtk::Image in order to handle theme-related icon sets.
 */
class RTImage final : public Gtk::Image
{
private:
    Gtk::IconSize size;
    Glib::ustring icon_name;
    std::shared_ptr<RTSurface> surface;
    Glib::RefPtr<const Gio::Icon> g_icon;

    RtScopedConnection conn;

    void onUpdate(double dpi, int scale);

public:
    RTImage ();
    explicit RTImage (const Glib::ustring& iconName, const Gtk::IconSize iconSize = Gtk::ICON_SIZE_SMALL_TOOLBAR);
    explicit RTImage (const Glib::RefPtr<const Gio::Icon>& gIcon, const Gtk::IconSize iconSize = Gtk::ICON_SIZE_SMALL_TOOLBAR);

    void set_from_icon_name(const Glib::ustring& iconName);
    void set_from_icon_name(const Glib::ustring& iconName, const Gtk::IconSize iconSize);
    void set_from_gicon(const Glib::RefPtr<const Gio::Icon>& gIcon);
    void set_from_gicon(const Glib::RefPtr<const Gio::Icon>& gIcon, const Gtk::IconSize iconSize);

    int get_width();
    int get_height();
};
