Themeable.h

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//
// Themeable.h
//
 
#ifndef MALENA_THEMEABLE_H
#define MALENA_THEMEABLE_H
 
#pragma once
 
#include <Malena/Core/malena_export.h>
#include <Malena/Traits/Base/Trait.h>
#include <Malena/Resources/ThemeManager.h>
 
namespace ml
{
    // ── Themeable ─────────────────────────────────────────────────────────────

    class MALENA_API Themeable : public Trait
    {
    public:
        // ── Construction / destruction ────────────────────────────────────────
 
        Themeable()
        {
            ThemeManager::subscribe(this);
        }
 
        virtual ~Themeable()
        {
            ThemeManager::unsubscribe(this);
        }
 
        // ── Theme lock ────────────────────────────────────────────────────────

        void lockTheme()   { _themeLocked = true; }

        void unlockTheme() { _themeLocked = false; }

        [[nodiscard]] bool isThemeLocked() const { return _themeLocked; }
 
        // ── Settings lock ─────────────────────────────────────────────────────

        void lockSettings()   { _settingsLocked = true; }

        void unlockSettings() { _settingsLocked = false; }

        [[nodiscard]] bool isSettingsLocked() const { return _settingsLocked; }
 
        // ── Theme change handler ──────────────────────────────────────────────

        virtual void onThemeApplied(const Theme& theme) = 0;
 
    private:
        bool _themeLocked    = false;
        bool _settingsLocked = false;
    };
 
} // namespace ml
 
#endif // MALENA_THEMEABLE_H