ThrottleManager.hh

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#ifndef THROTTLEMANAGER_HH
#define THROTTLEMANAGER_HH
 
#include "Subject.hh"
#include "BooleanSetting.hh"
 
namespace openmsx {
 
class CommandController;
 
class ThrottleManager final : public Subject<ThrottleManager>
                            , private Observer<Setting>
{
public:
        explicit ThrottleManager(CommandController& commandController);
        ~ThrottleManager();
 
        [[nodiscard]] bool isThrottled() const { return throttle; }
 
        [[nodiscard]] auto& getFullSpeedLoadingSetting() { return fullSpeedLoadingSetting; }
 
private:
        friend class LoadingIndicator;
 
        void indicateLoadingState(bool state);
 
        void updateStatus();
 
        // Observer<Setting>
        void update(const Setting& setting) noexcept override;
 
private:
        BooleanSetting throttleSetting;
        BooleanSetting fullSpeedLoadingSetting;
        int loading = 0;
        bool throttle = true;
};
 
class LoadingIndicator
{
public:
        explicit LoadingIndicator(ThrottleManager& throttleManager);
        ~LoadingIndicator();
 
        void update(bool newState);
 
private:
        ThrottleManager& throttleManager;
        bool isLoading = false;
};
 
} // namespace openmsx
 
#endif