GxInputImeText.h

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//===========================================================================
//===========================================================================
#pragma once
 
GX_CORE_NAMESPACE_BEGIN()
 
//===========================================================================
//===========================================================================
class GxImeText : public GxInputDevice
{
    //-------------------------------------------------------------
    //-------------------------------------------------------------
public:
    GX_RTTI_CLASS(GxImeText, GxInputDevice)
    // GxClassBase継承クラス用禁止宣言
    GX_PROHIBIT_CLASS_BASE(GxImeText)
 
    
    static constexpr u32 MAX_CANDLIST = 10;
    static constexpr u32 MAX_CANDIDATE_LENGTH = GxMath::VALUE_256;
    static constexpr u32 MAX_COMPOSITION_LENGTH = GxMath::VALUE_256;
 
    struct GxImeData
    {
        //-------------------------------------------------------------
        //-------------------------------------------------------------
 
        // コマンド
        static constexpr u8 COMMAND_BACK_SPACE      = 8;    
        static constexpr u8 COMMAND_CUT             = 24;   
        static constexpr u8 COMMAND_COPY            = 3;    
        static constexpr u8 COMMAND_PASTE           = 22;   
        static constexpr u8 COMMAND_SELECT_ALL      = 1;    
        static constexpr u8 COMMAND_ENTER           = 13;   
        static constexpr u8 COMMAND_BELL            = 7;    
        static constexpr u8 COMMAND_LEFT            = 17;   
        static constexpr u8 COMMAND_UP              = 18;   
        static constexpr u8 COMMAND_RIGHT           = 19;   
        static constexpr u8 COMMAND_DOWN            = 20;   
        static constexpr u8 COMMAND_INSERT          = 21;   
        static constexpr u8 COMMAND_DELETE          = 23;   
        static constexpr u8 COMMAND_END             = 25;   
        static constexpr u8 COMMAND_HOME            = 26;   
 
        // アクセラレート
        static constexpr u8 ACCELERATE_MASK_SHIFT   = 1;    
        static constexpr u8 ACCELERATE_MASK_CONTROL = 2;    
        static constexpr u8 ACCELERATE_MASK_ALT     = 4;    
        // コールバック戻り値
        // 0b 00000000
        //          ^^exec
        //          |break
        static constexpr s32 CALLBACK_MASK_EXECUTE  = 1;    
        static constexpr s32 CALLBACK_MASK_BREAK    = 2;    
 
        union
        {
            struct
            {
                u8  _command;       
                u8  _accelerate;    
                u8  _data2;         
                u8  _data3;         
            };
            u32     _access32;      
        };
 
        //-------------------------------------------------------------
        //-------------------------------------------------------------
 
        static GX_STR concatenate(GX_STR dst, GxImeData* pSrc);
        static GX_STR backSpace(GX_STR dst);
        static GX_STR addEnter(GX_STR dst);
        static u32 leftCharByte(GX_STR start, GX_STR src);
        static u32 rightCharByte(GX_STR src);
        static u32 endOfLineByte(GX_STR src);
        static u32 begOfLineByte(GX_STR start, GX_STR src);
        static void trimLeft(GX_STR dst, u32 bytes);
 
    };
 
    struct GxImeRenderData
    {
        //-------------------------------------------------------------
        //-------------------------------------------------------------
 
        // _compositionAttr のフラグ (see Imm.h)
        static constexpr u8 COMPOSITION_ATTRIBUTE_INPUT                 = 0x00;
        static constexpr u8 COMPOSITION_ATTRIBUTE_TARGET_CONVERTED      = 0x01;
        static constexpr u8 COMPOSITION_ATTRIBUTE_CONVERTED             = 0x02;
        static constexpr u8 COMPOSITION_ATTRIBUTE_TARGET_NOT_CONVERTED  = 0x03;
        static constexpr u8 COMPOSITION_ATTRIBUTE_INPUT_ERROR           = 0x04;
        static constexpr u8 COMPOSITION_ATTRIBUTE_FIXED_CONVERTED       = 0x05;
 
        //-------------------------------------------------------------
        //-------------------------------------------------------------
 
        void update(void);
 
        //-------------------------------------------------------------
        //-------------------------------------------------------------
 
        GX_CHAR _indicator[4];                                      
        GX_CHAR _currentIndicator[4];                               
        GX_CHAR _composition[MAX_COMPOSITION_LENGTH * 3];           
        u8      _compositionAttr[MAX_COMPOSITION_LENGTH];           
        GX_CHAR _candidate[MAX_CANDLIST][MAX_CANDIDATE_LENGTH * 3]; 
        u32     _candidateSelection;                                
        b32     _isVerticalCandidate;                               
 
    };
 
    enum class UPDATE
    {
        READY = 0,                  
        FINALIZE_STRING_REQUEST,    
        FINALIZE_STRING_DONE,       
    };
 
    //-------------------------------------------------------------
    //-------------------------------------------------------------
 
    GxImeText(void);
    ~GxImeText(void) override;
    GX_FORCE_INLINE void clear(void) override {}
    b32 initialize(void) override;
    void setBufferSizeNum(u32 sizeNum);
 
    //-----------------------------------------------------------
    //-----------------------------------------------------------
 
    GX_FORCE_INLINE void getInputDataDevice(void) override {};
    void update(void) override;
#if GX_DEVELOP
    GX_FORCE_INLINE void developRender(void) override {}
    static GxGuiBase* createGui(GxProperty& property, GxTypedObject* pOwner, const GxRtti& rtti, u32 index);
#endif //GX_DEVELOP
    GX_FORCE_INLINE void saveInput(void) override {};
    GX_FORCE_INLINE void loadInput(void) override {};
 
    //-----------------------------------------------------------
    //-----------------------------------------------------------
 
    b32 isEnable(void) const override;
    GX_FORCE_INLINE b32 isOk(void) override { return false; };
    GX_FORCE_INLINE b32 isCancel(void) override { return false; };
 
    GxImeData* map(void);
    void unmap(void);
    s32 decode(GX_STR dst, GX_STR dstWork, u32 bufSize, u32& cursorStart, u32& cursorEnd, GxCallback::GxHandlerBase* pFunction = nullptr);
 
    GxImeRenderData* mapRenderData(void);
    void unmapRenderData(void);
 
    void copyClipboard(GX_STR src);
    GX_STR pasteClipboard(GX_STR src, u32 maxBytes);
 
    GX_FORCE_INLINE b32 getIsEnableImeSystem(void) const { return _isEnableImeSystem; }
 
    GX_FORCE_INLINE b32 getIsEnableIme(void) const { return _isEnableIme; }
 
    GX_FORCE_INLINE b32 getIsImeOpened(void) const { return _isImeOpened; }
 
    //  フォーカスから離れるときには pOwner に nullptr を設定する
    //  フォーカスから離れるときには useIme に false を設定すると IME off になる
    //  戻り値が true の場合は内部処理中でリクエストは無視される
    b32 enterFocus(b32 useIme, void* pOwner);
    b32 isFocus(void *pOwner);
 
#if defined(_WINDOWS)
    LRESULT wndProc(HWND windowHandle, UINT uMessage, WPARAM wParam, LPARAM lParam, b32& noDefProc, b32& inTextEdit);
 
private:
    b32 wndProcText(HWND windowHandle, UINT uMessage, WPARAM wParam, LPARAM lParam);
#endif //_WINDOWS
 
private:
    void clearBuffer(void);
 
    //-------------------------------------------------------------
    //-------------------------------------------------------------
private:
    b32                 _isEnableImeSystem;         
    b32                 _isEnableIme;               
    b32                 _isEnableImeDelay;          
    b32                 _isImeOpened;               
    b32                 _hasFocus;                  
    GxCriticalSection   _criticalSectionBuffer;     
    GxCriticalSection   _criticalSectionRender;     
    GxCriticalSection   _criticalSectionState;      
    GxImeData*          _pBuffer;                   
    GxImeRenderData     _renderData;                
    u32                 _bufferSizeNum;             
    u32                 _bufferPosition;            
    void*               _pOwner;                    
    void*               _pOwnerDelay;               
    UPDATE              _updateState;               
 
};
 
GX_CORE_NAMESPACE_END()