token_palette.h

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#pragma once
 
#include <ui/qt/utils/theme_manager.h>
 
#include <QApplication>
#include <QColor>
#include <QHash>
#include <QPalette>
 
#include <memory>
#include <optional>

using IconPaletteRef = std::shared_ptr<std::optional<QPalette>>;
 
inline IconPaletteRef makeIconPaletteRef()
{
    return std::make_shared<std::optional<QPalette>>();
}

using IconTokenColorsRef = std::shared_ptr<QHash<ThemeManager::ThemeToken, QColor>>;
 
inline IconTokenColorsRef makeIconTokenColorsRef()
{
    return std::make_shared<QHash<ThemeManager::ThemeToken, QColor>>();
}
 
inline const QPalette *iconPalettePtr(const IconPaletteRef &ref)
{
    return (ref && ref->has_value()) ? &ref->value() : nullptr;
}

inline QColor resolveIconToken(ThemeManager::ThemeToken token, const QPalette *palette)
{
    if (palette) {
        switch (token) {
        case ThemeManager::PaletteWindow:          return palette->color(QPalette::Window);
        case ThemeManager::PaletteBase:            return palette->color(QPalette::Base);
        case ThemeManager::PaletteText:            return palette->color(QPalette::Text);
        case ThemeManager::PaletteWindowText:      return palette->color(QPalette::WindowText);
        case ThemeManager::PaletteAlternateBase:   return palette->color(QPalette::AlternateBase);
        case ThemeManager::PaletteMid:             return palette->color(QPalette::Mid);
        case ThemeManager::PaletteMidlight:        return palette->color(QPalette::Midlight);
        case ThemeManager::PaletteHighlightedText: return palette->color(QPalette::HighlightedText);
        default: break;
        }
    }
    const QColor c = ThemeManager::instance()->color(token);
    if (c.isValid())
        return c;
    return (palette ? *palette : qApp->palette()).color(QPalette::Text);
}