InputEventGenerator.hh

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#ifndef INPUTEVENTGENERATOR_HH
#define INPUTEVENTGENERATOR_HH

#include "Observer.hh"
#include "EventListener.hh"
#include "noncopyable.hh"
#include "build-info.hh"
#include "Keys.hh"
#include <SDL.h>
#include <memory>

namespace openmsx {

class CommandController;
class BooleanSetting;
class EventDistributor;
class Setting;
class EscapeGrabCmd;

class InputEventGenerator : private Observer<Setting>, private EventListener,
                            private noncopyable
{
public:
        InputEventGenerator(CommandController& commandController,
                            EventDistributor& eventDistributor);
        virtual ~InputEventGenerator();

        void wait();

        void setKeyRepeat(bool enable);

        void reinit();

        BooleanSetting& getGrabInput() const { return *grabInput; }

private:
        typedef std::shared_ptr<const Event> EventPtr;

        void poll();
        void handle(const SDL_Event& event);
        void setGrabInput(bool grab);

        // Observer<Setting>
        virtual void update(const Setting& setting);

        // EventListener
        virtual int signalEvent(const std::shared_ptr<const Event>& event);

        EventDistributor& eventDistributor;
        const std::unique_ptr<BooleanSetting> grabInput;
        const std::unique_ptr<EscapeGrabCmd> escapeGrabCmd;
        friend class EscapeGrabCmd;

        enum EscapeGrabState {
                ESCAPE_GRAB_WAIT_CMD,
                ESCAPE_GRAB_WAIT_LOST,
                ESCAPE_GRAB_WAIT_GAIN
        } escapeGrabState;

        // OsdControl
        void setNewOsdControlButtonState(
                unsigned newState, const EventPtr& origEvent);
        void triggerOsdControlEventsFromJoystickAxisMotion(
                unsigned axis, short value, const EventPtr& origEvent);
        void osdControlChangeButton(
                bool up, unsigned changedButtonMask, const EventPtr& origEvent);
        void triggerOsdControlEventsFromJoystickButtonEvent(
                unsigned button, bool up, const EventPtr& origEvent);
        void triggerOsdControlEventsFromKeyEvent(
                Keys::KeyCode keyCode, bool up, const EventPtr& origEvent);


#if PLATFORM_GP2X
        int stat8; // last joystick status (8 input switches)
#endif
        bool keyRepeat;

        unsigned osdControlButtonsState; // 0 is pressed, 1 is released
};

} // namespace openmsx

#endif