FlagIconHelper.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * Copyright (C) 2026 Marco Craveiro <marco.craveiro@gmail.com>
 *
 * This program 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.
 *
 * This program 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
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */
#ifndef ORES_QT_FLAG_ICON_HELPER_HPP
#define ORES_QT_FLAG_ICON_HELPER_HPP
 
#include <QAction>
#include <QComboBox>
#include <QLineEdit>
#include <QObject>
#include "ores.qt/export.hpp"
 
namespace ores::qt {
 
class ImageCache;
 
enum class FlagSource { Currency, Country, BusinessCentre };
 
ORES_QT_API void apply_flag_icons(QComboBox* combo, ImageCache* cache, FlagSource source);
 
ORES_QT_API void setup_flag_combo(
    QObject* context, QComboBox* combo, ImageCache* cache, FlagSource source);
 
template<typename Resolver>
void set_combo_flag_icons(QComboBox* combo, Resolver&& resolver) {
    for (int i = 0; i < combo->count(); ++i) {
        const std::string code = combo->itemText(i).toStdString();
        combo->setItemIcon(i, resolver(code));
    }
    combo->update();
}
 
inline void set_line_edit_flag_icon(
    QLineEdit* edit, const QIcon& icon, QAction*& action_ptr) {
    if (action_ptr) {
        edit->removeAction(action_ptr);
        delete action_ptr;
        action_ptr = nullptr;
    }
    if (!icon.isNull()) {
        action_ptr = edit->addAction(icon, QLineEdit::LeadingPosition);
    }
}
 
}
 
#endif