www.pudn.com > SCIDE.rar > CCrystalTextView.h, change:1999-02-22,size:13795b

//////////////////////////////////////////////////////////////////////////// 
//	File:		CCrystalTextView.h 
//	Version:	1.0.0.0 
//	Created:	29-Dec-1998 
// 
//	Author:		Stcherbatchenko Andrei 
//	E-mail:		windfall@gmx.de 
// 
//	Interface of the CCrystalTextView class, a part of Crystal Edit - 
//	syntax coloring text editor. 
// 
//	You are free to use or modify this code to the following restrictions: 
//	- Acknowledge me somewhere in your about box, simple "Parts of code by.." 
//	will be enough. If you can't (or don't want to), contact me personally. 
//	- LEAVE THIS HEADER INTACT 
//////////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_CCRYSTALTEXTVIEW_H__AD7F2F41_6CB3_11D2_8C32_0080ADB86836__INCLUDED_) 
#define AFX_CCRYSTALTEXTVIEW_H__AD7F2F41_6CB3_11D2_8C32_0080ADB86836__INCLUDED_ 
 
#if _MSC_VER >= 1000 
#pragma once 
#endif // _MSC_VER >= 1000 
 
#include "cedefs.h" 
 
 
//////////////////////////////////////////////////////////////////////////// 
// Forward class declarations 
 
class CCrystalTextBuffer; 
class CUpdateContext; 
 
 
//////////////////////////////////////////////////////////////////////////// 
// CCrystalTextView class declaration 
 
//	CCrystalTextView::FindText() flags 
enum 
{ 
	FIND_MATCH_CASE		= 0x0001, 
	FIND_WHOLE_WORD		= 0x0002, 
	FIND_DIRECTION_UP	= 0x0010, 
	REPLACE_SELECTION	= 0x0100 
}; 
 
//	CCrystalTextView::UpdateView() flags 
enum 
{ 
	UPDATE_HORZRANGE	= 0x0001,		//	update horz scrollbar 
	UPDATE_VERTRANGE	= 0x0002,		//	update vert scrollbar 
	UPDATE_SINGLELINE	= 0x0100,		//	single line has changed 
	UPDATE_FLAGSONLY	= 0x0200,		//	only line-flags were changed 
 
	UPDATE_RESET		= 0x1000		//	document was reloaded, update all! 
}; 
 
class CRYSEDIT_CLASS_DECL CCrystalTextView : public CView 
{ 
	DECLARE_DYNCREATE(CCrystalTextView) 
 
private: 
	//	Search parameters 
	BOOL m_bLastSearch; 
	DWORD m_dwLastSearchFlags; 
	LPTSTR m_pszLastFindWhat; 
	BOOL m_bMultipleSearch;         // More search   
	 
	BOOL m_bCursorHidden; 
 
	//	Painting caching bitmap 
	CBitmap *m_pCacheBitmap; 
 
	//	Line/character dimensions 
	int m_nLineHeight, m_nCharWidth; 
	void CalcLineCharDim(); 
 
	//	Text attributes 
	int m_nTabSize; 
	BOOL m_bViewTabs; 
	BOOL m_bSelMargin; 
 
	//	Amount of lines/characters that completely fits the client area 
	int m_nScreenLines, m_nScreenChars; 
 
	int m_nMaxLineLength; 
	int m_nIdealCharPos; 
 
	BOOL m_bFocused; 
	CPoint m_ptAnchor; 
	LOGFONT m_lfBaseFont; 
	CFont *m_apFonts[4]; 
 
	//	Parsing stuff 
	DWORD *m_pdwParseCookies; 
	int m_nParseArraySize; 
	DWORD GetParseCookie(int nLineIndex); 
 
	//	Pre-calculated line lengths (in characters) 
	int m_nActualLengthArraySize; 
	int *m_pnActualLineLength; 
 
	BOOL m_bPreparingToDrag; 
	BOOL m_bDraggingText; 
	BOOL m_bDragSelection, m_bWordSelection, m_bLineSelection; 
	UINT m_nDragSelTimer; 
	CPoint WordToRight(CPoint pt); 
	CPoint WordToLeft(CPoint pt); 
 
	CPoint m_ptDrawSelStart, m_ptDrawSelEnd; 
	CPoint m_ptCursorPos; 
	CPoint m_ptSelStart, m_ptSelEnd; 
	void PrepareSelBounds(); 
 
	//	Helper functions 
	void ExpandChars(LPCTSTR pszChars, int nOffset, int nCount, CString &line); 
 
	int ApproxActualOffset(int nLineIndex, int nOffset); 
	void AdjustTextPoint(CPoint &point); 
	void DrawLineHelperImpl(CDC *pdc, CPoint &ptOrigin, const CRect &rcClip, 
							LPCTSTR pszChars, int nOffset, int nCount); 
	BOOL IsInsideSelBlock(CPoint ptTextPos); 
 
	BOOL m_bBookmarkExist;     // More bookmarks 
 
protected: 
	CImageList *m_pIcons; 
	CCrystalTextBuffer *m_pTextBuffer; 
	HACCEL m_hAccel; 
	BOOL m_bVertScrollBarLocked, m_bHorzScrollBarLocked; 
	CPoint m_ptDraggedTextBegin, m_ptDraggedTextEnd; 
	virtual void ResetView(); 
	void UpdateCaret(); 
	void SetAnchor(const CPoint &ptNewAnchor); 
	int GetMarginWidth(); 
 
	BOOL m_bShowInactiveSelection; 
	//	[JRT] 
	BOOL m_bDisableDragAndDrop; 
 
	CPoint ClientToText(const CPoint &point); 
	CPoint TextToClient(const CPoint &point); 
	void InvalidateLines(int nLine1, int nLine2, BOOL bInvalidateMargin = FALSE); 
	int CalculateActualOffset(int nLineIndex, int nCharIndex); 
 
	//	Printing 
	int m_nPrintPages; 
	int *m_pnPages; 
	CFont *m_pPrintFont; 
	int m_nPrintLineHeight; 
	BOOL m_bPrintHeader, m_bPrintFooter; 
	CRect m_ptPageArea, m_rcPrintArea; 
	int PrintLineHeight(CDC *pdc, int nLine); 
	void RecalcPageLayouts(CDC *pdc, CPrintInfo *pInfo); 
	virtual void PrintHeader(CDC *pdc, int nPageNum); 
	virtual void PrintFooter(CDC *pdc, int nPageNum); 
	virtual void GetPrintHeaderText(int nPageNum, CString &text); 
	virtual void GetPrintFooterText(int nPageNum, CString &text); 
 
	//	Keyboard handlers 
	void MoveLeft(BOOL bSelect); 
	void MoveRight(BOOL bSelect); 
	void MoveWordLeft(BOOL bSelect); 
	void MoveWordRight(BOOL bSelect); 
	void MoveUp(BOOL bSelect); 
	void MoveDown(BOOL bSelect); 
	void MoveHome(BOOL bSelect); 
	void MoveEnd(BOOL bSelect); 
	void MovePgUp(BOOL bSelect); 
	void MovePgDn(BOOL bSelect); 
	void MoveCtrlHome(BOOL bSelect); 
	void MoveCtrlEnd(BOOL bSelect); 
 
	void SelectAll(); 
	void Copy(); 
 
	BOOL IsSelection(); 
	BOOL IsInsideSelection(const CPoint &ptTextPos); 
	void GetSelection(CPoint &ptStart, CPoint &ptEnd); 
	void SetSelection(const CPoint &ptStart, const CPoint &ptEnd); 
 
	int m_nTopLine, m_nOffsetChar; 
	BOOL m_bSmoothScroll; 
 
	int GetLineHeight(); 
	int GetCharWidth(); 
	int GetMaxLineLength(); 
	int GetScreenLines(); 
	int GetScreenChars(); 
	CFont *GetFont(BOOL bItalic = FALSE, BOOL bBold = FALSE); 
 
	void RecalcVertScrollBar(BOOL bPositionOnly = FALSE); 
	void RecalcHorzScrollBar(BOOL bPositionOnly = FALSE); 
 
	//	Scrolling helpers 
	void ScrollToChar(int nNewOffsetChar, BOOL bNoSmoothScroll = FALSE, BOOL bTrackScrollBar = TRUE); 
	void ScrollToLine(int nNewTopLine, BOOL bNoSmoothScroll = FALSE, BOOL bTrackScrollBar = TRUE); 
 
	//	Splitter support 
	virtual void UpdateSiblingScrollPos(BOOL bHorz); 
	virtual void OnUpdateSibling(CCrystalTextView *pUpdateSource, BOOL bHorz); 
	CCrystalTextView *GetSiblingView(int nRow, int nCol); 
 
	virtual int GetLineCount(); 
	virtual int GetLineLength(int nLineIndex); 
	virtual int GetLineActualLength(int nLineIndex); 
	virtual LPCTSTR GetLineChars(int nLineIndex); 
	virtual DWORD GetLineFlags(int nLineIndex); 
	virtual void GetText(const CPoint &ptStart, const CPoint &ptEnd, CString &text); 
 
	//	Clipboard overridable 
	virtual BOOL TextInClipboard(); 
	virtual BOOL PutToClipboard(LPCTSTR pszText); 
	virtual BOOL GetFromClipboard(CString &text); 
 
	//	Drag-n-drop overrideable 
	virtual HGLOBAL PrepareDragData(); 
	virtual DROPEFFECT GetDropEffect(); 
	virtual void OnDropSource(DROPEFFECT de); 
	BOOL IsDraggingText() const; 
 
	virtual COLORREF GetColor(int nColorIndex); 
	virtual void GetLineColors(int nLineIndex, COLORREF &crBkgnd, 
					COLORREF &crText, BOOL &bDrawWhitespace); 
	virtual BOOL GetItalic(int nColorIndex); 
	virtual BOOL GetBold(int nColorIndex); 
 
	void DrawLineHelper(CDC *pdc, CPoint &ptOrigin, const CRect &rcClip, int nColorIndex, 
						LPCTSTR pszChars, int nOffset, int nCount, CPoint ptTextPos); 
	virtual void DrawSingleLine(CDC *pdc, const CRect &rect, int nLineIndex); 
	virtual void DrawMargin(CDC *pdc, const CRect &rect, int nLineIndex); 
 
	//	Syntax coloring overrides 
	struct TEXTBLOCK 
	{ 
		int	m_nCharPos; 
		int m_nColorIndex; 
	}; 
 
	virtual DWORD ParseLine(DWORD dwCookie, int nLineIndex, TEXTBLOCK *pBuf, int &nActualItems); 
 
	virtual HINSTANCE GetResourceHandle(); 
 
// Attributes 
public: 
	BOOL GetViewTabs(); 
	void SetViewTabs(BOOL bViewTabs); 
	int GetTabSize(); 
	void SetTabSize(int nTabSize); 
	BOOL GetSelectionMargin(); 
	void SetSelectionMargin(BOOL bSelMargin); 
	void GetFont(LOGFONT &lf); 
	void SetFont(const LOGFONT &lf); 
	BOOL GetSmoothScroll() const; 
	void SetSmoothScroll(BOOL bSmoothScroll); 
	//	[JRT]: 
	BOOL GetDisableDragAndDrop() const; 
	void SetDisableDragAndDrop(BOOL bDDAD); 
 
	//	Default handle to resources 
	static HINSTANCE s_hResourceInst; 
 
	enum 
	{ 
		//	Base colors 
		COLORINDEX_WHITESPACE, 
		COLORINDEX_BKGND, 
		COLORINDEX_NORMALTEXT, 
		COLORINDEX_SELMARGIN, 
		COLORINDEX_SELBKGND, 
		COLORINDEX_SELTEXT, 
		//	Syntax colors 
		COLORINDEX_KEYWORD, 
		COLORINDEX_COMMENT, 
		COLORINDEX_NUMBER, 
		COLORINDEX_OPERATOR,      // [JRT]: 
		COLORINDEX_STRING, 
		COLORINDEX_PREPROCESSOR, 
		//	Compiler/debugger colors 
		COLORINDEX_ERRORBKGND, 
		COLORINDEX_ERRORTEXT, 
		COLORINDEX_EXECUTIONBKGND, 
		COLORINDEX_EXECUTIONTEXT, 
		COLORINDEX_BREAKPOINTBKGND, 
		COLORINDEX_BREAKPOINTTEXT 
		//	... 
		//	Expandable: custom elements are allowed. 
	}; 
 
// Operations 
public: 
	void AttachToBuffer(CCrystalTextBuffer *pBuf = NULL); 
	void DetachFromBuffer(); 
 
	//	Buffer-view interaction, multiple views 
	virtual CCrystalTextBuffer *LocateTextBuffer(); 
	virtual void UpdateView(CCrystalTextView *pSource, CUpdateContext *pContext, DWORD dwFlags, int nLineIndex = -1); 
 
	//	Attributes 
	CPoint GetCursorPos(); 
	void SetCursorPos(const CPoint &ptCursorPos); 
	void ShowCursor(); 
	void HideCursor(); 
 
	//	Operations 
	void EnsureVisible(CPoint pt); 
 
	//	Text search helpers 
	BOOL FindText(LPCTSTR pszText, const CPoint &ptStartPos, DWORD dwFlags, BOOL bWrapSearch, CPoint *pptFoundPos); 
	BOOL FindTextInBlock(LPCTSTR pszText, const CPoint &ptStartPos, const CPoint &ptBlockBegin, const CPoint &ptBlockEnd, 
						DWORD dwFlags, BOOL bWrapSearch, CPoint *pptFoundPos); 
	BOOL HighlightText(const CPoint &ptStartPos, int nLength); 
 
	//	Overridable: an opportunity for Auto-Indent, Smart-Indent etc. 
	virtual void OnEditOperation(int nAction, LPCTSTR pszText); 
 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CCrystalTextView) 
	public: 
	virtual void OnDraw(CDC* pDC);  // overridden to draw this view 
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs); 
	virtual BOOL PreTranslateMessage(MSG* pMsg); 
	virtual void OnPrepareDC(CDC* pDC, CPrintInfo* pInfo = NULL); 
	protected: 
	virtual void OnInitialUpdate(); // called first time after construct 
	virtual BOOL OnPreparePrinting(CPrintInfo* pInfo); 
	virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo); 
	virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo); 
	virtual void OnPrint(CDC* pDC, CPrintInfo* pInfo); 
	//}}AFX_VIRTUAL 
 
// Implementation 
public: 
	CCrystalTextView(); 
	~CCrystalTextView(); 
 
protected: 
 
// Generated message map functions 
protected: 
#ifdef _DEBUG 
	void AssertValidTextPos(const CPoint &pt); 
#endif 
 
	//{{AFX_MSG(CCrystalTextView) 
	afx_msg void OnDestroy(); 
	afx_msg BOOL OnEraseBkgnd(CDC* pDC); 
	afx_msg void OnSize(UINT nType, int cx, int cy); 
	afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar); 
	afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message); 
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point); 
	afx_msg void OnSetFocus(CWnd* pOldWnd); 
	afx_msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar); 
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point); 
	afx_msg void OnMouseMove(UINT nFlags, CPoint point); 
	afx_msg void OnTimer(UINT nIDEvent); 
	afx_msg void OnKillFocus(CWnd* pNewWnd); 
	afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point); 
	afx_msg void OnEditCopy(); 
	afx_msg void OnUpdateEditCopy(CCmdUI* pCmdUI); 
	afx_msg void OnEditSelectAll(); 
	afx_msg void OnUpdateEditSelectAll(CCmdUI* pCmdUI); 
	afx_msg void OnRButtonDown(UINT nFlags, CPoint point); 
	afx_msg void OnSysColorChange(); 
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct); 
	afx_msg void OnEditFind(); 
	afx_msg void OnEditRepeat(); 
	afx_msg void OnUpdateEditRepeat(CCmdUI* pCmdUI); 
	afx_msg void OnEditFindPrevious();                 // More search  
	afx_msg void OnUpdateEditFindPrevious(CCmdUI* pCmdUI); 
	//}}AFX_MSG 
	afx_msg void OnFilePageSetup(); 
 
	afx_msg void OnCharLeft(); 
	afx_msg void OnExtCharLeft(); 
	afx_msg void OnCharRight(); 
	afx_msg void OnExtCharRight(); 
	afx_msg void OnWordLeft(); 
	afx_msg void OnExtWordLeft(); 
	afx_msg void OnWordRight(); 
	afx_msg void OnExtWordRight(); 
	afx_msg void OnLineUp(); 
	afx_msg void OnExtLineUp(); 
	afx_msg void OnLineDown(); 
	afx_msg void OnExtLineDown(); 
	afx_msg void OnPageUp(); 
	afx_msg void OnExtPageUp(); 
	afx_msg void OnPageDown(); 
	afx_msg void OnExtPageDown(); 
	afx_msg void OnLineEnd(); 
	afx_msg void OnExtLineEnd(); 
	afx_msg void OnHome(); 
	afx_msg void OnExtHome(); 
	afx_msg void OnTextBegin(); 
	afx_msg void OnExtTextBegin(); 
	afx_msg void OnTextEnd(); 
	afx_msg void OnExtTextEnd(); 
	afx_msg void OnUpdateIndicatorCRLF(CCmdUI* pCmdUI); 
	afx_msg void OnUpdateIndicatorPosition(CCmdUI* pCmdUI); 
	afx_msg void OnToggleBookmark(UINT nCmdID); 
	afx_msg void OnGoBookmark(UINT nCmdID); 
	afx_msg void OnClearBookmarks(); 
 
	afx_msg void OnToggleBookmark();	// More bookmarks 
	afx_msg void OnClearAllBookmarks(); 
	afx_msg void OnNextBookmark(); 
	afx_msg void OnPrevBookmark(); 
	afx_msg void OnUpdateClearAllBookmarks(CCmdUI* pCmdUI); 
	afx_msg void OnUpdateNextBookmark(CCmdUI* pCmdUI); 
	afx_msg void OnUpdatePrevBookmark(CCmdUI* pCmdUI); 
 
	afx_msg void ScrollUp(); 
	afx_msg void ScrollDown(); 
	afx_msg void ScrollLeft(); 
	afx_msg void ScrollRight(); 
	DECLARE_MESSAGE_MAP() 
}; 
 
#ifdef _DEBUG 
#define ASSERT_VALIDTEXTPOS(pt)		AssertValidTextPos(pt); 
#else 
#define ASSERT_VALIDTEXTPOS(pt) 
#endif 
 
#if ! (defined(CE_FROM_DLL) || defined(CE_DLL_BUILD)) 
#include "CCrystalTextView.inl" 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
 
//{{AFX_INSERT_LOCATION}} 
// Microsoft Developer Studio will insert additional declarations immediately before the previous line. 
 
#endif // !defined(AFX_CCRYSTALTEXTVIEW_H__AD7F2F41_6CB3_11D2_8C32_0080ADB86836__INCLUDED_)