296 lines
7.5 KiB
C++
296 lines
7.5 KiB
C++
/* Copyright (c) Microsoft Corporation.
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Licensed under the MIT License. */
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/* Copyright (c) Microsoft Corporation.
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Licensed under the MIT License. */
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/***************************************************************************
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Author: ShonK
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Project: Kauai
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Reviewed:
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Copyright (c) Microsoft Corporation
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Header file for edit controls and rich text editing.
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***************************************************************************/
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#ifndef TEXT_H
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#define TEXT_H
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//edit control parameters
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typedef class EDPAR *PEDPAR;
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class EDPAR
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{
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public:
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GCB _gcb;
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long _onn;
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ulong _grfont;
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long _dypFont;
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long _tah;
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long _tav;
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ACR _acrFore;
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ACR _acrBack;
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long _cmhl;
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EDPAR(void) {}
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EDPAR(long hid, PGOB pgob, ulong grfgob, long gin, RC *prcAbs, RC *prcRel,
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long onn, ulong grfont, long dypFont, long tah = tahLeft,
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long tav = tavTop, ACR acrFore = kacrBlack, ACR acrBack = kacrWhite,
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long cmhl = 0);
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void Set(long hid, PGOB pgob, ulong grfgob, long gin, RC *prcAbs, RC *prcRel,
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long onn, ulong grfont, long dypFont, long tah = tahLeft,
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long tav = tavTop, ACR acrFore = kacrBlack, ACR acrBack = kacrWhite,
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long cmhl = 0);
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void SetFont(long onn, ulong grfont, long dypFont, long tah = tahLeft,
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long tav = tavTop, ACR acrFore = kacrBlack, ACR acrBack = kacrWhite);
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};
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/***************************************************************************
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Edit control base class.
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***************************************************************************/
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typedef class EDCB *PEDCB;
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#define EDCB_PAR GOB
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#define kclsEDCB 'EDCB'
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class EDCB : public EDCB_PAR
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{
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RTCLASS_DEC
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ASSERT
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MARKMEM
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protected:
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//handler level
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long _cmhl;
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//the selection
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PGNV _pgnv;
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long _ichAnchor;
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long _ichOther;
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bool _fSelOn: 1;
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bool _fXpValid: 1;
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bool _fSelByWord: 1;
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bool _fMark: 1;
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bool _fClear: 1;
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ulong _tsSel;
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long _xpSel; //for avoiding migration when changing selection by lines
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//the origin
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long _xp;
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long _yp;
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EDCB(PGCB pgcb, long cmhl);
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virtual bool _FInit(void);
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// pure virtual functions
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virtual long _LnFromIch(long ich) = 0;
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virtual long _IchMinLn(long ln) = 0;
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virtual long _XpFromIch(long ich) = 0;
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virtual long _YpFromIch(long ich);
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virtual long _YpFromLn(long ln) = 0;
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virtual long _LnFromYp(long yp) = 0;
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virtual long _IchFromLnXp(long ln, long xp, bool fClosest = fTrue) = 0;
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virtual long _LnMac(void) = 0;
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virtual void _DrawLine(PGNV pgnv, long ln) = 0;
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virtual void _HiliteRc(PGNV pgnv, RC *prc) = 0;
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virtual bool _FFilterCh(achar ch) = 0;
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void _SwitchSel(bool fOn, long gin = kginDraw);
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void _InvertSel(PGNV pgnv, long gin = kginDraw);
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void _InvertIchRange(PGNV pgnv, long ich1, long ich2, long gin = kginDraw);
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void _Scroll(long dxp, long dyp, long gin = kginDraw);
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void _UpdateLn(long ln, long clnIns, long dlnDel, long dypDel,
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long gin = kginDraw);
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long _IchPrev(long ich, bool fWord = fFalse);
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long _IchNext(long ich, bool fWord = fFalse);
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achar _ChFetch(long ich);
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virtual void _NewRc(void);
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virtual void _GetRcContent(RC *prc);
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virtual void _InitGnv(PGNV pgnv);
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public:
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~EDCB(void);
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virtual void Draw(PGNV pgnv, RC *prcClip);
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virtual bool FCmdTrackMouse(PCMD_MOUSE pcmd);
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virtual bool FCmdKey(PCMD_KEY pcmd);
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virtual bool FCmdSelIdle(PCMD pcmd);
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virtual bool FCmdActivateSel(PCMD pcmd);
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virtual void Activate(bool fActive);
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long IchAnchor(void)
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{ return _ichAnchor; }
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long IchOther(void)
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{ return _ichOther; }
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void SetSel(long ichAnchor, long ichOther, long gin = kginDraw);
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void ShowSel(bool fForceJustification = fTrue, long gin = kginDraw);
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virtual long IchMac(void) = 0;
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virtual bool FReplace(achar *prgch, long cchIns,
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long ich1, long ich2, long gin = kginDraw) = 0;
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virtual long CchFetch(achar *prgch, long ich, long cchWant) = 0;
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};
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/***************************************************************************
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Plain edit control - virtual class supporting single line and multi
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line edit controls with a single font.
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***************************************************************************/
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typedef class EDPL *PEDPL;
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#define EDPL_PAR EDCB
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#define kclsEDPL 'EDPL'
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class EDPL : public EDPL_PAR
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{
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RTCLASS_DEC
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ASSERT
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protected:
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//drawing parameters
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long _onn;
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ulong _grfont;
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long _dypFont;
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long _tah;
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long _tav;
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ACR _acrFore;
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ACR _acrBack;
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long _dypLine;
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EDPL(PEDPAR pedpar);
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//methods of EDCB
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virtual bool _FInit(void);
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virtual long _XpFromIch(long ich);
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virtual long _YpFromLn(long ln);
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virtual long _LnFromYp(long yp);
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virtual long _IchFromLnXp(long ln, long xp, bool fClosest = fTrue);
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virtual void _DrawLine(PGNV pgnv, long ln);
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virtual void _HiliteRc(PGNV pgnv, RC *prc);
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long _XpOrigin(void);
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virtual bool _FLockLn(long ln, achar **pprgch, long *pcch) = 0;
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virtual void _UnlockLn(long ln, achar *prgch) = 0;
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};
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/***************************************************************************
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Single line edit control.
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***************************************************************************/
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const long kcchMaxEdsl = kcchMaxStn;
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typedef class EDSL *PEDSL;
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#define EDSL_PAR EDPL
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#define kclsEDSL 'EDSL'
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class EDSL : public EDSL_PAR
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{
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RTCLASS_DEC
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ASSERT
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protected:
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//the text
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long _cch;
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achar _rgch[kcchMaxEdsl];
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EDSL(PEDPAR pedpar);
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//methods of EDCB
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virtual long _LnFromIch(long ich);
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virtual long _IchMinLn(long ln);
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virtual long _LnMac(void);
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virtual bool _FFilterCh(achar ch);
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//methods of EDPL
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virtual bool _FLockLn(long ln, achar **pprgch, long *pcch);
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virtual void _UnlockLn(long ln, achar *prgch);
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public:
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static PEDSL PedslNew(PEDPAR pedpar);
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virtual long IchMac(void);
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virtual bool FReplace(achar *prgch, long cchIns,
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long ich1, long ich2, long gin = kginDraw);
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virtual long CchFetch(achar *prgch, long ich, long cchWant);
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//additional text APIs
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void GetStn(PSTN pstn);
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void SetStn(PSTN pstn, long gin = kginDraw);
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};
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/***************************************************************************
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Multi line edit control.
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***************************************************************************/
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typedef class EDML *PEDML;
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#define EDML_PAR EDPL
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#define kclsEDML 'EDML'
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class EDML : public EDML_PAR
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{
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RTCLASS_DEC
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ASSERT
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MARKMEM
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protected:
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//the text
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BSM _bsm;
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PGL _pglich;
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EDML(PEDPAR pedpar);
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//methods of EDCB
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virtual bool _FInit(void);
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virtual long _LnFromIch(long ich);
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virtual long _IchMinLn(long ln);
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virtual long _LnMac(void);
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virtual bool _FFilterCh(achar ch);
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//methods of EDPL
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virtual bool _FLockLn(long ln, achar **pprgch, long *pcch);
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virtual void _UnlockLn(long ln, achar *prgch);
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virtual long _ClnEstimate(achar *prgch, long cch);
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virtual long _LnReformat(long lnMin, long *pclnDel, long *pclnIns);
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virtual bool _FReplaceCore(achar *prgch, long cchIns, long ich,
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long cchDel);
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public:
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static PEDML PedmlNew(PEDPAR pedpar);
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~EDML(void);
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virtual long IchMac(void);
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virtual bool FReplace(achar *prgch, long cchIns,
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long ich1, long ich2, long gin = kginDraw);
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virtual long CchFetch(achar *prgch, long ich, long cchWant);
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};
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/***************************************************************************
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Multi line wrapping edit control.
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***************************************************************************/
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typedef class EDMW *PEDMW;
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#define EDMW_PAR EDML
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#define kclsEDMW 'EDMW'
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class EDMW : public EDMW_PAR
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{
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RTCLASS_DEC
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protected:
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EDMW(PEDPAR pedpar);
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//methods EDMW
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virtual long _ClnEstimate(achar *prgch, long cch);
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virtual long _LnReformat(long lnMin, long *pclnDel, long *pclnIns);
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long _CichGetBreakables(achar *prgch, long ich, long *prgich, long cichMax);
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virtual void _NewRc(void);
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public:
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static PEDMW PedmwNew(PEDPAR pedpar);
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};
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#endif //!TEXT_H
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