GainputInputMap.h

#ifndef GAINPUTINPUTMAP_H_
#define GAINPUTINPUTMAP_H_

namespace gainput
{

class UserButton;

typedef float (*FilterFunc_T)(float const value, void* userData);


class GAINPUT_LIBEXPORT InputMap
{
public:

    InputMap(InputManager& manager, const char* name = 0, Allocator& allocator = GetDefaultAllocator());
    ~InputMap();

    void Clear();

    const InputManager& GetManager() const { return manager_; }

    const char* GetName() const { return name_; }
    unsigned GetId() const { return id_; }


    bool MapBool(UserButtonId userButton, DeviceId device, DeviceButtonId deviceButton);

    bool MapFloat(UserButtonId userButton, DeviceId device, DeviceButtonId deviceButton,
            float min = 0.0f, float max = 1.0f,
            FilterFunc_T filterFunc = 0, void* filterUserData = 0);
    void Unmap(UserButtonId userButton);
    bool IsMapped(UserButtonId userButton) const;
    

    size_t GetMappings(UserButtonId userButton, DeviceButtonSpec* outButtons, size_t maxButtonCount) const;
    
    enum UserButtonPolicy
    {
        UBP_FIRST_DOWN,     
        UBP_MAX,        
        UBP_MIN,        
        UBP_AVERAGE     
    };

    bool SetUserButtonPolicy(UserButtonId userButton, UserButtonPolicy policy);


    bool SetDeadZone(UserButtonId userButton, float deadZone);

    bool GetBool(UserButtonId userButton) const;
    bool GetBoolIsNew(UserButtonId userButton) const;
    bool GetBoolPrevious(UserButtonId userButton) const;
    bool GetBoolWasDown(UserButtonId userButton) const;

    float GetFloat(UserButtonId userButton) const;
    float GetFloatPrevious(UserButtonId userButton) const;
    float GetFloatDelta(UserButtonId userButton) const;


    size_t GetUserButtonName(UserButtonId userButton, char* buffer, size_t bufferLength) const;


    UserButtonId GetUserButtonId(DeviceId device, DeviceButtonId deviceButton) const;
    

    ListenerId AddListener(MappedInputListener* listener);
    void RemoveListener(ListenerId listenerId);

    void ReorderListeners();

private:
    InputManager& manager_;
    char* name_;
    unsigned id_;
    Allocator& allocator_;

    typedef HashMap<UserButtonId, UserButton*> UserButtonMap;
    UserButtonMap userButtons_;
    UserButtonId nextUserButtonId_;

    HashMap<ListenerId, MappedInputListener*> listeners_;
    Array<MappedInputListener*> sortedListeners_;
    unsigned nextListenerId_;
    InputListener* managerListener_;
    ListenerId managerListenerId_;

    float GetFloatState(UserButtonId userButton, bool previous) const;

    UserButton* GetUserButton(UserButtonId userButton);
    const UserButton* GetUserButton(UserButtonId userButton) const;

    // Do not copy.
    InputMap(const InputMap &);
    InputMap& operator=(const InputMap &);

};

}

#endif