AGUI2Menu.h

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#pragma once
#include "AGUI2Element.h"
#include "Input/AInputMap.h"
#include "Sound/ASound.h"
 
class AGUI2MenuItem;
 
class AGUI2Menu : public AGUI2Element
{
public:
    using ACTIONFLAGS = TUINT32;
    enum ACTIONFLAGS_ : ACTIONFLAGS
    {
        ACTIONFLAGS_NONE   = 0,
        ACTIONFLAGS_UP     = BITFLAG( 0 ),
        ACTIONFLAGS_DOWN   = BITFLAG( 1 ),
        ACTIONFLAGS_LEFT   = BITFLAG( 2 ),
        ACTIONFLAGS_RIGHT  = BITFLAG( 3 ),
        ACTIONFLAGS_OK     = BITFLAG( 4 ),
        ACTIONFLAGS_CANCEL = BITFLAG( 5 ),
    };
 
    using ActivateCallback = void ( * )( void* a_pUserData, AGUI2MenuItem* a_pItem );
    using FocusCallback    = void ( * )( void* a_pUserData, AGUI2MenuItem* a_pOldFocus, AGUI2MenuItem* a_pNewFocus );
 
public:
    // constructors/destructor
    AGUI2Menu();
    ~AGUI2Menu();
 
    void  Update( TFLOAT a_fDeltaTime );
    TBOOL ProcessInputEvent( const Toshi::TInputInterface::InputEvent* a_pEvent );
    TBOOL ProcessInputCommand( AInputCommand a_eCommand, const Toshi::TInputInterface::InputEvent* a_pEvent );
 
    void AddMenuItem( AGUI2MenuItem& a_rMenuItem );
    void SetFocusAt( AGUI2MenuItem& a_rMenuItem );
 
    // Reflows elements vertically and calculates dimensions
    void ReflowChildrenVertically();
 
    TBOOL TriggerButtonPress( AGUI2MenuItem& a_rMenuItem );
 
    void SetMenuAlpha( TFLOAT a_fAlpha, TFLOAT a_fShadowAlpha = -1.0f );
    void SetMouseStateDirty() { m_bMouseStateDirty = TTRUE; }
 
    AGUI2MenuItem* GetFocusedMenuItem() const { return m_pFocusedMenuItem; }
    AGUI2MenuItem* GetHoveredMenuItem() const { return m_pHoveredMenuItem; }
    AGUI2MenuItem* GetLastMenuItem() const { return m_pLastMenuItem; }
 
    void SetCallbackUserData( void* a_pUserData ) { m_pCallbackUserData = a_pUserData; }
    void SetItemActivationCallback( ActivateCallback a_fnCallback ) { m_fnActivateCallback = a_fnCallback; }
    void SetItemFocusCallback( FocusCallback a_fnCallback ) { m_fnFocusCallback = a_fnCallback; }
 
    void SetFocusSound( ASoundId a_eSound ) { m_eFocusSound = a_eSound; }
    void SetSelectSound( ASoundId a_eSound ) { m_eSelectSound = a_eSound; }
    void SetBackSound( ASoundId a_eSound ) { m_eBackSound = a_eSound; }
    void SetNegativeSound( ASoundId a_eSound ) { m_eNegativeSound = a_eSound; }
 
private:
    void ActivateFocusedButton();
 
private:
    TFLOAT           m_fItemSpacing;
    AGUI2MenuItem*   m_pDefaultFocusElement;
    AGUI2MenuItem*   m_pCancelItem;
    ASoundId         m_eFocusSound;
    ASoundId         m_eSelectSound;
    ASoundId         m_eBackSound;
    ASoundId         m_eNegativeSound;
    AGUI2MenuItem*   m_pLastMenuItem;
    AGUI2MenuItem*   m_pFocusedMenuItem;
    ACTIONFLAGS      m_eActionFlags;
    TINT             m_Unk3;
    TINT             m_Unk4;
    ActivateCallback m_fnActivateCallback;
    FocusCallback    m_fnFocusCallback;
    void*            m_pCallbackUserData;
    TFLOAT           m_fTime;
    TBOOL            m_bFlag1;
    TBOOL            m_bHorizontalFlow;
    TINT             m_iNumMenuItems;
    TBOOL            m_bMouseStateDirty;
    AGUI2MenuItem*   m_pHoveredMenuItem;
};
 
class AGUI2MenuItem : public AGUI2Element
{
public:
    friend class AGUI2Menu;
 
    enum COMMANDRESULT
    {
        COMMANDRESULT_NONE,
        COMMANDRESULT_OK,
        COMMANDRESULT_CANCEL,
    };
 
public:
    // constructors/destructor
    AGUI2MenuItem();
    ~AGUI2MenuItem();
 
    void LinkMenuItemBefore( AGUI2MenuItem& a_rLinkAfter );
 
    TBOOL IsEnabled() const { return m_bEnabled; }
    TBOOL CanFocus() const { return IsEnabled() && IsVisible(); }
 
    AGUI2MenuItem* GetNextMenuItem() const { return m_pNextMenuItem; }
    AGUI2MenuItem* GetPrevMenuItem() const { return m_pPrevMenuItem; }
 
    //-----------------------------------------------------------------------------
    // AGUI2Element
    //-----------------------------------------------------------------------------
    virtual void SetAlpha( TFLOAT a_fAlpha ) OVERRIDE;
 
    //-----------------------------------------------------------------------------
    // Own methods
    //-----------------------------------------------------------------------------
    virtual void          OnFocus();
    virtual void          OnFocusLost();
    virtual void          OnUpdate( TFLOAT a_fDeltaTime );
    virtual COMMANDRESULT OnInputCommand( AGUI2Menu::ACTIONFLAGS& a_rActionFlags );
    virtual void          SetEnabled( TBOOL a_bEnabled );
    virtual TFLOAT        GetFlowVisualOffset();
    virtual TFLOAT        GetFlowOffset();
 
private:
    AGUI2MenuItem* m_pNextMenuItem;
    AGUI2MenuItem* m_pPrevMenuItem;
    TBOOL          m_bEnabled;
};