120 lines
2.8 KiB
C++
120 lines
2.8 KiB
C++
/*
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* _DISPML.H
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*
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* Purpose:
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* CDisplaySL class. Single-line display.
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*
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* Authors:
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* Eric Vasilik
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*/
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#ifndef _DISPSL_H
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#define _DISPSL_H
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#include "_disp.h"
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// Forward declaration
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class CTxtSelection;
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class CDisplaySL : public CDisplay, private CLine
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{
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public:
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CDisplaySL ( CTxtEdit* ped );
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protected:
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// The following are pure functions from the base
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// Helpers
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virtual BOOL Init();
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void InitVars();
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// Line breaking
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BOOL RecalcLine();
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// Rendering
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virtual VOID Render(const RECT &rcView, const RECT &rcRender);
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// Scrolling and scroller bars
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virtual BOOL UpdateScrollBar(INT nBar, BOOL fUpdateRange = FALSE);
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virtual LONG GetScrollRange(INT nBar) const;
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// Getting properties
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virtual void InitLinePtr ( CLinePtr & plp );
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virtual BOOL IsMain() const;
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// maximum height and width
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virtual LONG GetMaxWidth() const;
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virtual LONG GetMaxHeight() const;
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virtual LONG GetMaxPixelWidth() const;
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// Width, height and line count (of all text)
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virtual LONG GetWidth() const;
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virtual LONG GetHeight() const;
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virtual LONG GetResizeHeight() const;
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virtual LONG LineCount() const;
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// Visible view properties
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virtual LONG GetCliVisible(
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LONG *pcpMostVisible = NULL,
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BOOL fLastCharOfLastVisible = FALSE) const;
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virtual LONG GetFirstVisibleLine() const;
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// Line info
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virtual LONG GetLineText(LONG ili, TCHAR *pchBuff, LONG cchMost);
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virtual LONG CpFromLine(LONG ili, LONG *pyLine = NULL);
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virtual LONG LineFromCp(LONG cp, BOOL fAtEnd);
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// Point <-> cp conversion
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virtual LONG CpFromPoint(
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POINT pt,
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const RECT *prcClient,
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CRchTxtPtr * const ptp,
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CLinePtr * const prp,
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BOOL fAllowEOL,
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HITTEST *pHit = NULL,
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CDispDim *pdispdim = 0,
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LONG *pcpActual = NULL);
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virtual LONG PointFromTp (
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const CRchTxtPtr &tp,
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const RECT *prcClient,
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BOOL fAtEnd,
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POINT &pt,
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CLinePtr * const prp,
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UINT taMode,
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CDispDim *pdispdim = 0);
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// Line break recalc
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virtual BOOL RecalcView(BOOL fUpdateScrollBars, RECT* prc = NULL);
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virtual BOOL WaitForRecalcIli(LONG ili);
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// Complete updating (recalc + rendering)
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virtual BOOL UpdateView(const CRchTxtPtr &tpFirst, LONG cchOld, LONG cchNew);
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// Scrolling
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virtual BOOL ScrollView(LONG xScroll, LONG yScroll, BOOL fTracking, BOOL fFractionalScroll);
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// Selection
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virtual BOOL InvertRange(LONG cp, LONG cch, SELDISPLAYACTION selAction);
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// Natural size calculation
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virtual HRESULT GetNaturalSize(
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HDC hdcDraw,
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HDC hicTarget,
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DWORD dwMode,
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LONG *pwidth,
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LONG *pheight);
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virtual BOOL GetWordWrap() const;
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virtual CDisplay *Clone() const;
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virtual LONG GetMaxXScroll() const;
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};
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#endif
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