Source code of Windows XP (NT5)
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/*
* _LAYOUT.H
*
* Purpose:
* CLayout class
*
* Owner:<nl>
* Murray Sargent: Initial table implementation
* Keith Curtis: Factored into a separate class for
* performance, simplicity
*
* Copyright (c) 1999-2000, Microsoft Corporation. All rights reserved.
*/
#ifndef _LAYOUT_H
#define _LAYOUT_H
#include "_format.h"
// ========================== CLayout ===================================
// Holds an array of lines and has the ability to do rich layout.
class CLayout : public CLineArray //CLayout *plo;
{
public:
CLayout() {_iCFCells = -1; _iPFCells = -1;}
~CLayout() {DeleteSubLayouts(0, -1); ReleaseFormats(_iCFCells, _iPFCells);}
void DeleteSubLayouts(LONG ili, LONG cLine);
virtual BOOL IsNestedLayout() const {return TRUE;}
BOOL IsTableRow() {return _iPFCells >= 0;}
//Helper routines
LONG LineFromVpos (CDisplayML *pdp, LONG vPos, LONG *pdvpLine, LONG *pcpFirst);
LONG VposFromLine (CDisplayML *pdp, LONG ili);
const CCharFormat *GetCFCells();
const CParaFormat *GetPFCells() const;
static const CLayout *GetLORowAbove(CLine *pli, LONG ili,
CLine *pliMain = NULL, LONG iliMain = 0);
TFLOW GetTflow() const {return _tflow;}
void SetTflow(TFLOW tflow) {_tflow = tflow;}
static CLine * FindTopCell(LONG &cch, CLine *pli, LONG &ili, LONG dul, LONG &dy,
LONG *pdyHeight, CLine *pliMain, LONG iliMain, LONG *pcLine);
CLine * FindTopRow(CLine *pliStart, LONG ili, CLine *pliMain, LONG iliMain, const CParaFormat *pPF);
LONG GetVertAlignShift(LONG uCell, LONG dypText);
//The Big 4 methods
BOOL Measure (CMeasurer& me, CLine *pli, LONG ili, UINT uiFlags,
CLine *pliTarget = NULL, LONG iliMain = 0, CLine *pliMain = NULL, LONG *pdvpMax = NULL);
BOOL Render(CRenderer &re, CLine *pli, const RECTUV *prcView, BOOL fLastLine, LONG ili, LONG cLine);
LONG CpFromPoint(CMeasurer &me, POINTUV pt, const RECTUV *prcClient,
CRchTxtPtr * const ptp, CLinePtr * const prp, BOOL fAllowEOL,
HITTEST *pHit, CDispDim *pdispdim, LONG *pcpActual,
CLine *pliParent = NULL, LONG iliParent = 0);
LONG PointFromTp (CMeasurer &me, const CRchTxtPtr &tp, const RECTUV *prcClient, BOOL fAtEnd,
POINTUV &pt, CLinePtr * const prp, UINT taMode, CDispDim *pdispdim = NULL);
LONG _dvp; // The height of the array
protected:
LONG _cpMin; // First character in layout
// REVIEW: _tflow and _dvlBrdrTop can be BYTEs
LONG _tflow; // Textflow for layout
WORD _dvpBrdrTop; // Max table row top border
WORD _dvpBrdrBot; // Max table row bottom border
SHORT _iCFCells; // iCF for CLines representing table-row cells
SHORT _iPFCells; // iPF for CLines representing table-row cells
};
#endif //_LAYOUT_H