// tedit.h : interface of the CTedit class
//
// This class takes text entry from the user.
// It is derived from the CEdit class
//

#ifndef __TEDIT_H__
#define __TEDIT_H__

// default position for text box
#define INITX 10
#define INITY 10
#define INITCX 100
#define INITCY 50

#define MIN_CHARS_DISPLAY_SIZE 5 // minimum size is 5 chars with the default font

#define WM_MOVING       0x0216

//#define EM_POSFROMCHAR  0x00D6
//#define EM_CHARFROMPOS  0x00D7


#define IS_DBCS_CHARSET( charset )         ( (charset == GB2312_CHARSET) || \
                                             (charset == SHIFTJIS_CHARSET) || \
                                             (charset == HANGEUL_CHARSET) || \
                                             (charset == CHINESEBIG5_CHARSET) )


class CTedit;
class CTfont;

typedef enum
    {
        eEBOX_CHANGE,
        eFONT_CHANGE,
        eSIZE_MOVE_CHANGE,
    eNO_CHANGE
    } eLASTACTION;


/******************************************************************************/

class CAttrEdit : public CEdit
    {
    public:

    BOOL    m_bBackgroundTransparent;

    UINT    m_uiLastChar[2];

    CRect   m_rectUpdate;

    CTedit* m_pParentWnd;

    CString m_strResult;


    HKL     m_hKL;
    BOOL    m_bMouseDown;
    HCURSOR m_hHCursor;
    HCURSOR m_hVCursor;
    HCURSOR m_hOldCursor;
    CRect   m_rectFmt;
    int     m_iPrevStart;
    int     m_iTabPos;
    BOOL    m_bResizeOnly; // when IME composition will
                           // force a resize
   
    CAttrEdit::CAttrEdit();

    DECLARE_DYNCREATE( CAttrEdit )

    protected: // create from serialization only

    //{{AFX_MSG(CAttrEdit)
    afx_msg void OnPaint();
    afx_msg BOOL OnEraseBkgnd ( CDC* pDC );
    afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
    afx_msg void OnChar       (UINT nChar, UINT nRepCnt, UINT nFlags);

    afx_msg LRESULT OnImeChar          ( WPARAM wParam, LPARAM lParam );
    afx_msg LRESULT OnImeComposition   ( WPARAM wParam, LPARAM lParam );
    afx_msg LRESULT OnInputLangChange  ( WPARAM wParam, LPARAM lParam );
    afx_msg void OnKillFocus           ( CWnd* pNewWnd );
    afx_msg UINT OnNcHitTest           ( CPoint point );
    afx_msg void OnSetFocus            ( CWnd* pOldWnd );
    afx_msg void OnSize                ( UINT nType, int cx, int cy );
    afx_msg void OnLButtonDblClk       ( UINT nFlags, CPoint point );
    afx_msg void OnLButtonDown         ( UINT nFlags, CPoint point );
    afx_msg void OnMouseMove           ( UINT nFlags, CPoint point );
    afx_msg void OnLButtonUp           ( UINT nFlags, CPoint point );
    afx_msg void OnKeyDown             ( UINT nChar, UINT nRepCnt, UINT nFlags);
    afx_msg LRESULT OnSysTimer         ( WPARAM wParam, LPARAM lParam );

        //}}AFX_MSG

    DECLARE_MESSAGE_MAP()

    void SetHCursorShape  ( void );
    void SetVCursorShape  ( void );
    void UpdateSel        ( void );
    void UpdateInput      ( void );
    void SetStartSelect   ( void );
    void SetCaretPosition ( BOOL bPrev, CPoint *ptMouse, int iPrevStart );
    void SetCaretShape    ( void );
    void SetFmtRect       ( void );
    void Repaint          ( void );
    void TabTextOut       ( CDC *pDC, int nCharIndex, int x, int y,
                            LPCTSTR lpStr, int nCount, BOOL bSelect );

    friend class CTedit;
    };

/******************************************************************************/

class CTedit : public CWnd
    {
       friend class CTfont;
    private:

    CAttrEdit   m_cEdit;
    CTfont*     m_pcTfont;
    eLASTACTION m_eLastAction;
    BOOL        m_bBackgroundTransparent;
    BOOL        m_bCleanupBKBrush;
    BOOL        m_bStarting;
    BOOL        m_bPasting;
    BOOL        m_bExpand;
    BOOL        m_bChanged;
    UINT        m_uiHitArea;
    COLORREF    m_crFGColor;
    COLORREF    m_crBKColor;
    CRect       m_cRectOldPos;
    CRect       m_cRectWindow;
    CSize       m_SizeMinimum;


    public:

    CImgWnd*    m_pImgWnd;
    CBrush      m_hbrBkColor;
    BOOL        m_bRefresh;


    int         m_iLineHeight;
    BOOL        m_bVertEdit;
    BOOL        m_bAssocIMC;
    HIMC        m_hIMCEdit;
    HIMC        m_hIMCFace;
    HIMC        m_hIMCSize;
    HWND        m_hWndFace;
    HWND        m_hWndSize;


    CTedit::CTedit();
   
    DECLARE_DYNCREATE( CTedit )
    afx_msg void OnEnMaxText();
    protected:

    //{{AFX_MSG(CTedit)
    afx_msg void OnAttrEditEnChange(void);
    afx_msg void OnSize( UINT nType, int cx, int cy );
    afx_msg void OnMove( int x, int y );
    afx_msg void OnGetMinMaxInfo( MINMAXINFO FAR* lpMMI );
    afx_msg HBRUSH OnCtlColor( CDC* pDC, CWnd* pWnd, UINT nCtlColor );
    afx_msg void OnNcCalcSize( BOOL bCalcValidRects, NCCALCSIZE_PARAMS FAR* lpncsp );
    afx_msg void OnNcPaint();
    afx_msg UINT OnNcHitTest( CPoint point );
    afx_msg void OnRButtonDown(UINT nFlags, CPoint point);

    afx_msg void OnTextPlain();
    afx_msg void OnTextBold();
    afx_msg void OnTextItalic();
    afx_msg void OnTextUnderline();
    afx_msg void OnTextSelectfont();
    afx_msg void OnTextSelectpointsize();
    afx_msg void OnEditCut();
    afx_msg void OnEditCopy();
    afx_msg void OnEditPaste();
    afx_msg void OnTextDelete();
    afx_msg void OnTextSelectall();
    afx_msg void OnTextUndo();
    afx_msg void OnTextPlace();
    afx_msg void OnTextTexttool();
    afx_msg void OnUpdateTextPlain(CMenu *pcMenu);
    afx_msg void OnUpdateTextBold(CMenu *pcMenu);
    afx_msg void OnUpdateTextItalic(CMenu *pcMenu);
    afx_msg void OnUpdateTextUnderline(CMenu *pcMenu);
    afx_msg void OnUpdateTextTexttool(CMenu *pcMenu);

    afx_msg void OnDestroy();

        //}}AFX_MSG

    afx_msg void OnEnUpdate();

    afx_msg LRESULT OnMoving( WPARAM, LPARAM lprc );

    DECLARE_MESSAGE_MAP()

    virtual void PostNcDestroy();

    CSize GetDefaultMinSize( void );

    public:

    virtual CTedit::~CTedit();

    virtual BOOL PreCreateWindow( CREATESTRUCT& cs );

    BOOL       Create( CImgWnd* pParentWnd,
                                       COLORREF crefForeground,
                       COLORREF crefBackground,
                       CRect& rectTextPos,
                       BOOL bBackTransparent = TRUE );

    void       OnAttrEditFontChange( void );
    void       RefreshWindow       ( CRect* prect = NULL, BOOL bErase = TRUE );
    void       SetTextColor        ( COLORREF crColor );
    void       SetBackColor        ( COLORREF crColor );
    void       SetTransparentMode  ( BOOL bTransparent );
    void       Undo                ();
    void       ShowFontPalette     ( int nCmdShow );
    BOOL       IsFontPaletteVisible( void );
    void       ShowFontToolbar     ( BOOL bActivate = FALSE );
    void       HideFontToolbar     ( void );
    BOOL       IsModified          ( void ) { return m_bChanged; }
    void       GetBitmap           ( CDC* pDC, CRect* prectImg );
    CAttrEdit* GetEditWindow       ( void ) { return &m_cEdit; }

    HIMC       DisableIme( HWND hWnd );
    void       EnableIme( HWND hWnd, HIMC hIMC );
    BOOL       IsCUAS();

    };

#endif // __TEDIT_H__