Crystal Edit - syntax coloring text editor

////////////////////////////////////////////////////////////////////////////
//	File:		CCrystalTextView.cpp
//	Version:	1.0.0.0
//	Created:	29-Dec-1998
//
//	Author:		Stcherbatchenko Andrei
//	E-mail:		windfall@gmx.de
//
//	Implementation 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
////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////
//	17-Feb-99
//	FIX:	missing UpdateCaret() in CCrystalTextView::SetFont
//	FIX:	missing UpdateCaret() in CCrystalTextView::RecalcVertScrollBar
//	FIX:	mistype in CCrystalTextView::RecalcPageLayouts + instead of +=
//	FIX:	removed condition 'm_nLineHeight < 20' in
//		CCrystalTextView::CalcLineCharDim(). This caused painting defects
//		when using very small fonts.
//
//	FEATURE:	Some experiments with smooth scrolling, controlled by
//		m_bSmoothScroll member variable, by default turned off.
//		See ScrollToLine function for implementation details.
////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////
//	21-Feb-99
//		Paul Selormey, James R. Twine
//	+	FEATURE: description for Undo/Redo actions
//	+	FEATURE: multiple MSVC-like bookmarks
//	+	FEATURE: 'Disable backspace at beginning of line' option
//	+	FEATURE: 'Disable drag-n-drop editing' option
//
//	+	FIX:  ResetView() now virtual
//	+	FEATURE: Added OnEditOperation() virtual: base for auto-indent,
//		smart indent etc.
////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include <malloc.h>
#include "editcmd.h"
#include "editreg.h"
#include "CCrystalTextView.h"
#include "CCrystalTextBuffer.h"
#include "CFindTextDlg.h"

#ifndef __AFXPRIV_H__
#pragma message("Include <afxpriv.h> in your stdafx.h to avoid this message")
#include <afxpriv.h>
#endif

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#define TAB_CHARACTER				_T('\xBB')
#define SPACE_CHARACTER				_T('\x95')
#define DEFAULT_PRINT_MARGIN		1000				//	10 millimeters

#define SMOOTH_SCROLL_FACTOR		6


////////////////////////////////////////////////////////////////////////////
// CCrystalTextView

IMPLEMENT_DYNCREATE(CCrystalTextView, CView)

HINSTANCE CCrystalTextView::s_hResourceInst = NULL;

BEGIN_MESSAGE_MAP(CCrystalTextView, CView)
	//{{AFX_MSG_MAP(CCrystalTextView)
	ON_WM_DESTROY()
	ON_WM_ERASEBKGND()
	ON_WM_SIZE()
	ON_WM_VSCROLL()
	ON_WM_SETCURSOR()
	ON_WM_LBUTTONDOWN()
	ON_WM_SETFOCUS()
	ON_WM_HSCROLL()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	ON_WM_TIMER()
	ON_WM_KILLFOCUS()
	ON_WM_LBUTTONDBLCLK()
	ON_COMMAND(ID_EDIT_COPY, OnEditCopy)
	ON_UPDATE_COMMAND_UI(ID_EDIT_COPY, OnUpdateEditCopy)
	ON_COMMAND(ID_EDIT_SELECT_ALL, OnEditSelectAll)
	ON_UPDATE_COMMAND_UI(ID_EDIT_SELECT_ALL, OnUpdateEditSelectAll)
	ON_WM_RBUTTONDOWN()
	ON_WM_SYSCOLORCHANGE()
	ON_WM_CREATE()
	ON_COMMAND(ID_EDIT_FIND, OnEditFind)
	ON_COMMAND(ID_EDIT_REPEAT, OnEditRepeat)
	ON_UPDATE_COMMAND_UI(ID_EDIT_REPEAT, OnUpdateEditRepeat)
	ON_COMMAND(ID_EDIT_FIND_PREVIOUS, OnEditFindPrevious)
	ON_UPDATE_COMMAND_UI(ID_EDIT_FIND_PREVIOUS, OnUpdateEditFindPrevious)
	//}}AFX_MSG_MAP
	ON_COMMAND(ID_EDIT_CHAR_LEFT, OnCharLeft)
	ON_COMMAND(ID_EDIT_EXT_CHAR_LEFT, OnExtCharLeft)
	ON_COMMAND(ID_EDIT_CHAR_RIGHT, OnCharRight)
	ON_COMMAND(ID_EDIT_EXT_CHAR_RIGHT, OnExtCharRight)
	ON_COMMAND(ID_EDIT_WORD_LEFT, OnWordLeft)
	ON_COMMAND(ID_EDIT_EXT_WORD_LEFT, OnExtWordLeft)
	ON_COMMAND(ID_EDIT_WORD_RIGHT, OnWordRight)
	ON_COMMAND(ID_EDIT_EXT_WORD_RIGHT, OnExtWordRight)
	ON_COMMAND(ID_EDIT_LINE_UP, OnLineUp)
	ON_COMMAND(ID_EDIT_EXT_LINE_UP, OnExtLineUp)
	ON_COMMAND(ID_EDIT_LINE_DOWN, OnLineDown)
	ON_COMMAND(ID_EDIT_EXT_LINE_DOWN, OnExtLineDown)
	ON_COMMAND(ID_EDIT_SCROLL_UP, ScrollUp)
	ON_COMMAND(ID_EDIT_SCROLL_DOWN, ScrollDown)
	ON_COMMAND(ID_EDIT_PAGE_UP, OnPageUp)
	ON_COMMAND(ID_EDIT_EXT_PAGE_UP, OnExtPageUp)
	ON_COMMAND(ID_EDIT_PAGE_DOWN, OnPageDown)
	ON_COMMAND(ID_EDIT_EXT_PAGE_DOWN, OnExtPageDown)
	ON_COMMAND(ID_EDIT_LINE_END, OnLineEnd)
	ON_COMMAND(ID_EDIT_EXT_LINE_END, OnExtLineEnd)
	ON_COMMAND(ID_EDIT_HOME, OnHome)
	ON_COMMAND(ID_EDIT_EXT_HOME, OnExtHome)
	ON_COMMAND(ID_EDIT_TEXT_BEGIN, OnTextBegin)
	ON_COMMAND(ID_EDIT_EXT_TEXT_BEGIN, OnExtTextBegin)
	ON_COMMAND(ID_EDIT_TEXT_END, OnTextEnd)
	ON_COMMAND(ID_EDIT_EXT_TEXT_END, OnExtTextEnd)
	//	Standard printing commands
	ON_COMMAND(ID_FILE_PAGE_SETUP, OnFilePageSetup)
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
	//	Status
	ON_UPDATE_COMMAND_UI(ID_EDIT_INDICATOR_CRLF, OnUpdateIndicatorCRLF)
	ON_UPDATE_COMMAND_UI(ID_EDIT_INDICATOR_POSITION, OnUpdateIndicatorPosition)
	//	Bookmarks
	ON_COMMAND_RANGE(ID_EDIT_TOGGLE_BOOKMARK0, ID_EDIT_TOGGLE_BOOKMARK9, OnToggleBookmark)
	ON_COMMAND_RANGE(ID_EDIT_GO_BOOKMARK0, ID_EDIT_GO_BOOKMARK9, OnGoBookmark)
	ON_COMMAND(ID_EDIT_CLEAR_BOOKMARKS, OnClearBookmarks)
	// More Bookmarks
	ON_COMMAND(ID_EDIT_TOGGLE_BOOKMARK,     OnToggleBookmark)
	ON_COMMAND(ID_EDIT_GOTO_NEXT_BOOKMARK,  OnNextBookmark)
	ON_COMMAND(ID_EDIT_GOTO_PREV_BOOKMARK,  OnPrevBookmark)
	ON_COMMAND(ID_EDIT_CLEAR_ALL_BOOKMARKS, OnClearAllBookmarks)
	ON_UPDATE_COMMAND_UI(ID_EDIT_GOTO_NEXT_BOOKMARK,  OnUpdateNextBookmark)
	ON_UPDATE_COMMAND_UI(ID_EDIT_GOTO_PREV_BOOKMARK,  OnUpdatePrevBookmark)
	ON_UPDATE_COMMAND_UI(ID_EDIT_CLEAR_ALL_BOOKMARKS, OnUpdateClearAllBookmarks)
END_MESSAGE_MAP()

#define EXPAND_PRIMITIVE(impl, func)	\
	void CCrystalTextView::On##func() { impl(FALSE); }	\
	void CCrystalTextView::OnExt##func() { impl(TRUE); }
	EXPAND_PRIMITIVE(MoveLeft, CharLeft)
	EXPAND_PRIMITIVE(MoveRight, CharRight)
	EXPAND_PRIMITIVE(MoveWordLeft, WordLeft)
	EXPAND_PRIMITIVE(MoveWordRight, WordRight)
	EXPAND_PRIMITIVE(MoveUp, LineUp)
	EXPAND_PRIMITIVE(MoveDown, LineDown)
	EXPAND_PRIMITIVE(MovePgUp, PageUp)
	EXPAND_PRIMITIVE(MovePgDn, PageDown)
	EXPAND_PRIMITIVE(MoveHome, Home)
	EXPAND_PRIMITIVE(MoveEnd, LineEnd)
	EXPAND_PRIMITIVE(MoveCtrlHome, TextBegin)
	EXPAND_PRIMITIVE(MoveCtrlEnd, TextEnd)
#undef EXPAND_PRIMITIVE


/////////////////////////////////////////////////////////////////////////////
// CCrystalTextView construction/destruction

CCrystalTextView::CCrystalTextView()
{
	AFX_ZERO_INIT_OBJECT(CView);
	m_bSelMargin = TRUE;
	ResetView();
}

CCrystalTextView::~CCrystalTextView()
{
	ASSERT(m_hAccel == NULL);
	ASSERT(m_pCacheBitmap == NULL);
	ASSERT(m_pTextBuffer == NULL);		//	Must be correctly detached
	if (m_pszLastFindWhat != NULL)
		free(m_pszLastFindWhat);
	if (m_pdwParseCookies != NULL)
		delete m_pdwParseCookies;
	if (m_pnActualLineLength != NULL)
		delete m_pnActualLineLength;
}

BOOL CCrystalTextView::PreCreateWindow(CREATESTRUCT& cs)
{
	CWnd *pParentWnd = CWnd::FromHandlePermanent(cs.hwndParent);
	if (pParentWnd == NULL || ! pParentWnd->IsKindOf(RUNTIME_CLASS(CSplitterWnd)))
	{
		//	View must always create its own scrollbars,
		//	if only it's not used within splitter
		cs.style |= (WS_HSCROLL | WS_VSCROLL);
	}
	cs.lpszClass = AfxRegisterWndClass(CS_DBLCLKS);
	return CView::PreCreateWindow(cs);
}


/////////////////////////////////////////////////////////////////////////////
// CCrystalTextView drawing

void CCrystalTextView::GetSelection(CPoint &ptStart, CPoint &ptEnd)
{
	PrepareSelBounds();
	ptStart = m_ptDrawSelStart;
	ptEnd = m_ptDrawSelEnd;
}

CCrystalTextBuffer *CCrystalTextView::LocateTextBuffer()
{
	return NULL;
}

int CCrystalTextView::GetLineActualLength(int nLineIndex)
{
	int nLineCount = GetLineCount();
	ASSERT(nLineCount > 0);
	ASSERT(nLineIndex >= 0 && nLineIndex < nLineCount);
	if (m_pnActualLineLength == NULL)
	{
		m_pnActualLineLength = new int[nLineCount];
		memset(m_pnActualLineLength, 0xff, sizeof(int) * nLineCount);
		m_nActualLengthArraySize = nLineCount;
	}

	if (m_pnActualLineLength[nLineIndex] >= 0)
		return m_pnActualLineLength[nLineIndex];

	//	Actual line length is not determined yet, let's calculate a little
	int nActualLength = 0;
	int nLength = GetLineLength(nLineIndex);
	if (nLength > 0)
	{
		LPCTSTR pszLine = GetLineChars(nLineIndex);
		LPTSTR pszChars = (LPTSTR) _alloca(sizeof(TCHAR) * (nLength + 1));
		memcpy(pszChars, pszLine, sizeof(TCHAR) * nLength);
		pszChars[nLength] = 0;
		LPTSTR pszCurrent = pszChars;

		int nTabSize = GetTabSize();
		for (;;)
		{
#ifdef _UNICODE
			LPTSTR psz = wcschr(pszCurrent, L'\t');
#else
			LPTSTR psz = strchr(pszCurrent, '\t');
#endif
			if (psz == NULL)
			{
				nActualLength += (pszChars + nLength - pszCurrent);
				break;
			}

			nActualLength += (psz - pszCurrent);
			nActualLength += (nTabSize - nActualLength % nTabSize);
			pszCurrent = psz + 1;
		}
	}

	m_pnActualLineLength[nLineIndex] = nActualLength;
	return nActualLength;
}

void CCrystalTextView::ScrollToChar(int nNewOffsetChar, BOOL bNoSmoothScroll /*= FALSE*/, BOOL bTrackScrollBar /*= TRUE*/)
{
	//	For now, ignoring bNoSmoothScroll and m_bSmoothScroll
	if (m_nOffsetChar != nNewOffsetChar)
	{
		int nScrollChars = m_nOffsetChar - nNewOffsetChar;
		m_nOffsetChar = nNewOffsetChar;
		CRect rcScroll;
		GetClientRect(&rcScroll);
		rcScroll.left += GetMarginWidth();
		ScrollWindow(nScrollChars * GetCharWidth(), 0, &rcScroll, &rcScroll);
		UpdateWindow();
		if (bTrackScrollBar)
			RecalcHorzScrollBar(TRUE);
	}
}

void CCrystalTextView::ScrollToLine(int nNewTopLine, BOOL bNoSmoothScroll /*= FALSE*/, BOOL bTrackScrollBar /*= TRUE*/)
{
	if (m_nTopLine != nNewTopLine)
	{
		if (bNoSmoothScroll || ! m_bSmoothScroll)
		{
			int nScrollLines = m_nTopLine - nNewTopLine;
			m_nTopLine = nNewTopLine;
			ScrollWindow(0, nScrollLines * GetLineHeight());
			UpdateWindow();
			if (bTrackScrollBar)
				RecalcVertScrollBar(TRUE);
		}
		else
		{
			//	Do smooth scrolling
			int nLineHeight = GetLineHeight();
			if (m_nTopLine > nNewTopLine)
			{
				int nIncrement = (m_nTopLine - nNewTopLine) / SMOOTH_SCROLL_FACTOR + 1;
				while (m_nTopLine != nNewTopLine)
				{
					int nTopLine = m_nTopLine - nIncrement;
					if (nTopLine < nNewTopLine)
						nTopLine = nNewTopLine;
					int nScrollLines = nTopLine - m_nTopLine;
					m_nTopLine = nTopLine;
					ScrollWindow(0, - nLineHeight * nScrollLines);
					UpdateWindow();
					if (bTrackScrollBar)
						RecalcVertScrollBar(TRUE);
				}
			}
			else
			{
				int nIncrement = (nNewTopLine - m_nTopLine) / SMOOTH_SCROLL_FACTOR + 1;
				while (m_nTopLine != nNewTopLine)
				{
					int nTopLine = m_nTopLine + nIncrement;
					if (nTopLine > nNewTopLine)
						nTopLine = nNewTopLine;
					int nScrollLines = nTopLine - m_nTopLine;
					m_nTopLine = nTopLine;
					ScrollWindow(0, - nLineHeight * nScrollLines);
					UpdateWindow();
					if (bTrackScrollBar)
						RecalcVertScrollBar(TRUE);
				}
			}
		}
	}
}

void CCrystalTextView::ExpandChars(LPCTSTR pszChars, int nOffset, int nCount, CString &line)
{
	if (nCount <= 0)
	{
		line = _T("");
		return;
	}

	int nTabSize = GetTabSize();

	int nActualOffset = 0;
	for (int I = 0; I < nOffset; I ++)
	{
		if (pszChars[I] == _T('\t'))
			nActualOffset += (nTabSize - nActualOffset % nTabSize);
		else
			nActualOffset ++;
	}

	pszChars += nOffset;
	int nLength = nCount;

	int nTabCount = 0;
	for (I = 0; I < nLength; I ++)
	{
		if (pszChars[I] == _T('\t'))
			nTabCount ++;
	}

	LPTSTR pszBuf = line.GetBuffer(nLength + nTabCount * (nTabSize - 1) + 1);
	int nCurPos = 0;
	if (nTabCount > 0 || m_bViewTabs)
	{
		for (I = 0; I < nLength; I ++)
		{
			if (pszChars[I] == _T('\t'))
			{
				int nSpaces = nTabSize - (nActualOffset + nCurPos) % nTabSize;
				if (m_bViewTabs)
				{
					pszBuf[nCurPos ++] = TAB_CHARACTER;
					nSpaces --;
				}
				while (nSpaces > 0)
				{
					pszBuf[nCurPos ++] = _T(' ');
					nSpaces --;
				}
			}
			else
			{
				if (pszChars[I] == _T(' ') && m_bViewTabs)
					pszBuf[nCurPos] = SPACE_CHARACTER;
				else
					pszBuf[nCurPos] = pszChars[I];
				nCurPos ++;
			}
		}
	}
	else
	{
		memcpy(pszBuf, pszChars, sizeof(TCHAR) * nLength);
		nCurPos = nLength;
	}
	pszBuf[nCurPos] = 0;
	line.ReleaseBuffer();
}

void CCrystalTextView::DrawLineHelperImpl(CDC *pdc, CPoint &ptOrigin, const CRect &rcClip,
									 LPCTSTR pszChars, int nOffset, int nCount)
{
	ASSERT(nCount >= 0);
	if (nCount > 0)
	{
		CString line;
		ExpandChars(pszChars, nOffset, nCount, line);
		int nWidth = rcClip.right - ptOrigin.x;
		if (nWidth > 0)
		{
			int nCharWidth = GetCharWidth();
			int nCount = line.GetLength();
			int nCountFit = nWidth / nCharWidth + 1;
			if (nCount > nCountFit)
				nCount = nCountFit;
#ifdef _DEBUG
			//CSize sz = pdc->GetTextExtent(line, nCount);
			//ASSERT(sz.cx == m_nCharWidth * nCount);
#endif
			/*
			CRect rcBounds = rcClip;
			rcBounds.left = ptOrigin.x;
			rcBounds.right = rcBounds.left + GetCharWidth() * nCount;
			pdc->ExtTextOut(rcBounds.left, rcBounds.top, ETO_OPAQUE, &rcBounds, NULL, 0, NULL);
			*/
			VERIFY(pdc->ExtTextOut(ptOrigin.x, ptOrigin.y, ETO_CLIPPED, &rcClip, line, nCount, NULL));
		}
		ptOrigin.x += GetCharWidth() * line.GetLength();
	}
}

void CCrystalTextView::DrawLineHelper(CDC *pdc, CPoint &ptOrigin, const CRect &rcClip, int nColorIndex,
									 LPCTSTR pszChars, int nOffset, int nCount, CPoint ptTextPos)
{
	if (nCount > 0)
	{
		if (m_bFocused || m_bShowInactiveSelection)
		{
			int nSelBegin = 0, nSelEnd = 0;
			if (m_ptDrawSelStart.y > ptTextPos.y)
			{
				nSelBegin = nCount;
			}
			else
			if (m_ptDrawSelStart.y == ptTextPos.y)
			{
				nSelBegin = m_ptDrawSelStart.x - ptTextPos.x;
				if (nSelBegin < 0)
					nSelBegin = 0;
				if (nSelBegin > nCount)
					nSelBegin = nCount;
			}
			if (m_ptDrawSelEnd.y > ptTextPos.y)
			{
				nSelEnd = nCount;
			}
			else
			if (m_ptDrawSelEnd.y == ptTextPos.y)
			{
				nSelEnd = m_ptDrawSelEnd.x - ptTextPos.x;
				if (nSelEnd < 0)
					nSelEnd = 0;
				if (nSelEnd > nCount)
					nSelEnd = nCount;
			}

			ASSERT(nSelBegin >= 0 && nSelBegin <= nCount);
			ASSERT(nSelEnd >= 0 && nSelEnd <= nCount);
			ASSERT(nSelBegin <= nSelEnd);

			//	Draw part of the text before selection
			if (nSelBegin > 0)
			{
				DrawLineHelperImpl(pdc, ptOrigin, rcClip, pszChars, nOffset, nSelBegin);
			}
			if (nSelBegin < nSelEnd)
			{
				COLORREF crOldBk = pdc->SetBkColor(GetColor(COLORINDEX_SELBKGND));
				COLORREF crOldText = pdc->SetTextColor(GetColor(COLORINDEX_SELTEXT));
				DrawLineHelperImpl(pdc, ptOrigin, rcClip, pszChars, nOffset + nSelBegin, nSelEnd - nSelBegin);
				pdc->SetBkColor(crOldBk);
				pdc->SetTextColor(crOldText);
			}
			if (nSelEnd < nCount)
			{
				DrawLineHelperImpl(pdc, ptOrigin, rcClip, pszChars, nOffset + nSelEnd, nCount - nSelEnd);
			}
		}
		else
		{
			DrawLineHelperImpl(pdc, ptOrigin, rcClip, pszChars, nOffset, nCount);
		}
	}
}

void CCrystalTextView::GetLineColors(int nLineIndex, COLORREF &crBkgnd,
					COLORREF &crText, BOOL &bDrawWhitespace)
{
	DWORD dwLineFlags = GetLineFlags(nLineIndex);
	bDrawWhitespace = TRUE;
	crText = RGB(255, 255, 255);
	if (dwLineFlags & LF_EXECUTION)
	{
		crBkgnd = RGB(0, 128, 0);
		return;
	}
	if (dwLineFlags & LF_BREAKPOINT)
	{
		crBkgnd = RGB(255, 0, 0);
		return;
	}
	if (dwLineFlags & LF_INVALID_BREAKPOINT)
	{
		crBkgnd = RGB(128, 128, 0);
		return;
	}
	crBkgnd = CLR_NONE;
	crText = CLR_NONE;
	bDrawWhitespace = FALSE;
}

DWORD CCrystalTextView::GetParseCookie(int nLineIndex)
{
	int nLineCount = GetLineCount();
	if (m_pdwParseCookies == NULL)
	{
		m_nParseArraySize = nLineCount;
		m_pdwParseCookies = new DWORD[nLineCount];
		memset(m_pdwParseCookies, 0xff, nLineCount * sizeof(DWORD));
	}

	if (nLineIndex < 0)
		return 0;
	if (m_pdwParseCookies[nLineIndex] != (DWORD) -1)
		return m_pdwParseCookies[nLineIndex];

	int L = nLineIndex;
	while (L >= 0 && m_pdwParseCookies[L] == (DWORD) -1)
		L --;
	L ++;

	int nBlocks;
	while (L <= nLineIndex)
	{
		DWORD dwCookie = 0;
		if (L > 0)
			dwCookie = m_pdwParseCookies[L - 1];
		ASSERT(dwCookie != (DWORD) -1);
		m_pdwParseCookies[L] = ParseLine(dwCookie, L, NULL, nBlocks);
		ASSERT(m_pdwParseCookies[L] != (DWORD) -1);
		L ++;
	}

	return m_pdwParseCookies[nLineIndex];
}

void CCrystalTextView::DrawSingleLine(CDC *pdc, const CRect &rc, int nLineIndex)
{
	ASSERT(nLineIndex >= -1 && nLineIndex < GetLineCount());

	if (nLineIndex == -1)
	{
		//	Draw line beyond the text
		pdc->FillSolidRect(rc, GetColor(COLORINDEX_WHITESPACE));
		return;
	}

	//	Acquire the background color for the current line
	BOOL bDrawWhitespace = FALSE;
	COLORREF crBkgnd, crText;
	GetLineColors(nLineIndex, crBkgnd, crText, bDrawWhitespace);
	if (crBkgnd == CLR_NONE)
		crBkgnd = GetColor(COLORINDEX_BKGND);

	int nLength = GetLineLength(nLineIndex);
	if (nLength == 0)
	{
		//	Draw the empty line
		CRect rect = rc;
		if ((m_bFocused || m_bShowInactiveSelection) && IsInsideSelBlock(CPoint(0, nLineIndex)))
		{
			pdc->FillSolidRect(rect.left, rect.top, GetCharWidth(), rect.Height(), GetColor(COLORINDEX_SELBKGND));
			rect.left += GetCharWidth();
		}
		pdc->FillSolidRect(rect, bDrawWhitespace ? crBkgnd : GetColor(COLORINDEX_WHITESPACE));
		return;
	}

	//	Parse the line
	LPCTSTR pszChars = GetLineChars(nLineIndex);
	DWORD dwCookie = GetParseCookie(nLineIndex - 1);
	TEXTBLOCK *pBuf = (TEXTBLOCK *) _alloca(sizeof(TEXTBLOCK) * nLength * 3);
	int nBlocks = 0;
	m_pdwParseCookies[nLineIndex] = ParseLine(dwCookie, nLineIndex, pBuf, nBlocks);
	ASSERT(m_pdwParseCookies[nLineIndex] != (DWORD) -1);

	//	Draw the line text
	CPoint origin(rc.left - m_nOffsetChar * GetCharWidth(), rc.top);
	pdc->SetBkColor(crBkgnd);
	if (crText != CLR_NONE)
		pdc->SetTextColor(crText);
	BOOL bColorSet = FALSE;

	if (nBlocks > 0)
	{
		ASSERT(pBuf[0].m_nCharPos >= 0 && pBuf[0].m_nCharPos <= nLength);
		if (crText == CLR_NONE)
			pdc->SetTextColor(GetColor(COLORINDEX_NORMALTEXT));
		pdc->SelectObject(GetFont(GetItalic(COLORINDEX_NORMALTEXT), GetBold(COLORINDEX_NORMALTEXT)));
		DrawLineHelper(pdc, origin, rc, COLORINDEX_NORMALTEXT, pszChars, 0, pBuf[0].m_nCharPos, CPoint(0, nLineIndex));
		for (int I = 0; I < nBlocks - 1; I ++)
		{
			ASSERT(pBuf[I].m_nCharPos >= 0 && pBuf[I].m_nCharPos <= nLength);
			if (crText == CLR_NONE)
				pdc->SetTextColor(GetColor(pBuf[I].m_nColorIndex));
			pdc->SelectObject(GetFont(GetItalic(pBuf[I].m_nColorIndex), GetBold(pBuf[I].m_nColorIndex)));
			DrawLineHelper(pdc, origin, rc, pBuf[I].m_nColorIndex, pszChars,
							pBuf[I].m_nCharPos, pBuf[I + 1].m_nCharPos - pBuf[I].m_nCharPos,
							CPoint(pBuf[I].m_nCharPos, nLineIndex));
		}
		ASSERT(pBuf[nBlocks - 1].m_nCharPos >= 0 && pBuf[nBlocks - 1].m_nCharPos <= nLength);
		if (crText == CLR_NONE)
			pdc->SetTextColor(GetColor(pBuf[nBlocks - 1].m_nColorIndex));
		pdc->SelectObject(GetFont(GetItalic(pBuf[nBlocks - 1].m_nColorIndex),
							GetBold(pBuf[nBlocks - 1].m_nColorIndex)));
		DrawLineHelper(pdc, origin, rc, pBuf[nBlocks - 1].m_nColorIndex, pszChars,
							pBuf[nBlocks - 1].m_nCharPos, nLength - pBuf[nBlocks - 1].m_nCharPos,
							CPoint(pBuf[nBlocks - 1].m_nCharPos, nLineIndex));
	}
	else
	{
		if (crText == CLR_NONE)
			pdc->SetTextColor(GetColor(COLORINDEX_NORMALTEXT));
		pdc->SelectObject(GetFont(GetItalic(COLORINDEX_NORMALTEXT), GetBold(COLORINDEX_NORMALTEXT)));
		DrawLineHelper(pdc, origin, rc, COLORINDEX_NORMALTEXT, pszChars, 0, nLength, CPoint(0, nLineIndex));
	}

	//	Draw whitespaces to the left of the text
	CRect frect = rc;
	if (origin.x > frect.left)
		frect.left = origin.x;
	if (frect.right > frect.left)
	{
		if ((m_bFocused || m_bShowInactiveSelection) && IsInsideSelBlock(CPoint(nLength, nLineIndex)))
		{
			pdc->FillSolidRect(frect.left, frect.top, GetCharWidth(), frect.Height(),
												GetColor(COLORINDEX_SELBKGND));
			frect.left += GetCharWidth();
		}
		if (frect.right > frect.left)
			pdc->FillSolidRect(frect, bDrawWhitespace ? crBkgnd : GetColor(COLORINDEX_WHITESPACE));
	}
}

COLORREF CCrystalTextView::GetColor(int nColorIndex)
{
	switch (nColorIndex)
	{
	case COLORINDEX_WHITESPACE:
	case COLORINDEX_BKGND:
		return ::GetSysColor(COLOR_WINDOW);
	case COLORINDEX_NORMALTEXT:
		return ::GetSysColor(COLOR_WINDOWTEXT);
	case COLORINDEX_SELMARGIN:
		return ::GetSysColor(COLOR_SCROLLBAR);
	case COLORINDEX_PREPROCESSOR:
		return RGB(0, 128, 192);
	case COLORINDEX_COMMENT:
		return RGB(128, 128, 128);
	//	[JRT]: Enabled Support For Numbers...
	case COLORINDEX_NUMBER:
		return RGB(0x80, 0x00, 0x00);
	//	[JRT]: Support For C/C++ Operators
	case COLORINDEX_OPERATOR:
		return RGB(0x00, 0x00, 0x00);
	case COLORINDEX_KEYWORD:
		return RGB(0, 0, 255);
	case COLORINDEX_SELBKGND:
		return RGB(0, 0, 0);
	case COLORINDEX_SELTEXT:
		return RGB(255, 255, 255);
	}
	return RGB(255, 0, 0);
}

DWORD CCrystalTextView::GetLineFlags(int nLineIndex)
{
	if (m_pTextBuffer == NULL)
		return 0;
	return m_pTextBuffer->GetLineFlags(nLineIndex);
}

void CCrystalTextView::DrawMargin(CDC *pdc, const CRect &rect, int nLineIndex)
{
	if (! m_bSelMargin)
	{
		pdc->FillSolidRect(rect, GetColor(COLORINDEX_BKGND));
		return;
	}

	pdc->FillSolidRect(rect, GetColor(COLORINDEX_SELMARGIN));

	int nImageIndex = -1;
	if (nLineIndex >= 0)
	{
		DWORD dwLineFlags = GetLineFlags(nLineIndex);
		static const DWORD adwFlags[] =
		{
			LF_EXECUTION,
			LF_BREAKPOINT,
			LF_COMPILATION_ERROR,
			LF_BOOKMARK(1),
			LF_BOOKMARK(2),
			LF_BOOKMARK(3),
			LF_BOOKMARK(4),
			LF_BOOKMARK(5),
			LF_BOOKMARK(6),
			LF_BOOKMARK(7),
			LF_BOOKMARK(8),
			LF_BOOKMARK(9),
			LF_BOOKMARK(0),
			LF_BOOKMARKS,
			LF_INVALID_BREAKPOINT
		};
		for (int I = 0; I <= sizeof(adwFlags) / sizeof(adwFlags[0]); I ++)
		{
			if ((dwLineFlags & adwFlags[I]) != 0)
			{
				nImageIndex = I;
				break;
			}
		}
	}

	if (nImageIndex >= 0)
	{
		if (m_pIcons == NULL)
		{ 
			m_pIcons = new CImageList;
			VERIFY(m_pIcons->Create(IDR_MARGIN_ICONS, 16, 16, RGB(255, 255, 255)));
		}
		CPoint pt(rect.left + 2, rect.top + (rect.Height() - 16) / 2);
		VERIFY(m_pIcons->Draw(pdc, nImageIndex, pt, ILD_TRANSPARENT));
	}
}

BOOL CCrystalTextView::IsInsideSelBlock(CPoint ptTextPos)
{
	ASSERT_VALIDTEXTPOS(ptTextPos);
	if (ptTextPos.y < m_ptDrawSelStart.y)
		return FALSE;
	if (ptTextPos.y > m_ptDrawSelEnd.y)
		return FALSE;
	if (ptTextPos.y < m_ptDrawSelEnd.y && ptTextPos.y > m_ptDrawSelStart.y)
		return TRUE;
	if (m_ptDrawSelStart.y < m_ptDrawSelEnd.y)
	{
		if (ptTextPos.y == m_ptDrawSelEnd.y)
			return ptTextPos.x < m_ptDrawSelEnd.x;
		ASSERT(ptTextPos.y == m_ptDrawSelStart.y);
		return ptTextPos.x >= m_ptDrawSelStart.x;
	}
	ASSERT(m_ptDrawSelStart.y == m_ptDrawSelEnd.y);
	return ptTextPos.x >= m_ptDrawSelStart.x && ptTextPos.x < m_ptDrawSelEnd.x;
}

BOOL CCrystalTextView::IsInsideSelection(const CPoint &ptTextPos)
{
	PrepareSelBounds();
	return IsInsideSelBlock(ptTextPos);
}

void CCrystalTextView::PrepareSelBounds()
{
	if (m_ptSelStart.y < m_ptSelEnd.y ||
			(m_ptSelStart.y == m_ptSelEnd.y && m_ptSelStart.x < m_ptSelEnd.x))
	{
		m_ptDrawSelStart = m_ptSelStart;
		m_ptDrawSelEnd = m_ptSelEnd;
	}
	else
	{
		m_ptDrawSelStart = m_ptSelEnd;
		m_ptDrawSelEnd = m_ptSelStart;
	}
}

void CCrystalTextView::OnDraw(CDC *pdc)
{
	CRect rcClient;
	GetClientRect(rcClient);

	int nLineCount = GetLineCount();
	int nLineHeight = GetLineHeight();
	PrepareSelBounds();

	CDC cacheDC;
	VERIFY(cacheDC.CreateCompatibleDC(pdc));
	if (m_pCacheBitmap == NULL)
	{
		m_pCacheBitmap = new CBitmap;
		VERIFY(m_pCacheBitmap->CreateCompatibleBitmap(pdc, rcClient.Width(), nLineHeight));
	}
	CBitmap *pOldBitmap = cacheDC.SelectObject(m_pCacheBitmap);

	CRect rcLine;
	rcLine = rcClient;
	rcLine.bottom = rcLine.top + nLineHeight;
	CRect rcCacheMargin(0, 0, GetMarginWidth(), nLineHeight);
	CRect rcCacheLine(GetMarginWidth(), 0, rcLine.Width(), nLineHeight);

	int nCurrentLine = m_nTopLine;
	while (rcLine.top < rcClient.bottom)
	{
		if (nCurrentLine < nLineCount)
		{
			DrawMargin(&cacheDC, rcCacheMargin, nCurrentLine);
			DrawSingleLine(&cacheDC, rcCacheLine, nCurrentLine);
		}
		else
		{
			DrawMargin(&cacheDC, rcCacheMargin, -1);
			DrawSingleLine(&cacheDC, rcCacheLine, -1);
		}

		VERIFY(pdc->BitBlt(rcLine.left, rcLine.top, rcLine.Width(), rcLine.Height(), &cacheDC, 0, 0, SRCCOPY));

		nCurrentLine ++;
		rcLine.OffsetRect(0, nLineHeight);
	}

	cacheDC.SelectObject(pOldBitmap);
	cacheDC.DeleteDC();
}

void CCrystalTextView::ResetView()
{
	m_nTopLine = 0;
	m_nOffsetChar = 0;
	m_nLineHeight = -1;
	m_nCharWidth = -1;
	m_nTabSize = 4;
	m_nMaxLineLength = -1;
	m_nScreenLines = -1;
	m_nScreenChars = -1;
	m_nIdealCharPos = -1;
	m_ptAnchor.x = 0;
	m_ptAnchor.y = 0;
	if (m_pIcons != NULL)
	{
		delete m_pIcons;
		m_pIcons = NULL;
	}
	for (int I = 0; I < 4; I ++)
	{
		if (m_apFonts[I] != NULL)
		{
			m_apFonts[I]->DeleteObject();
			delete m_apFonts[I];
			m_apFonts[I] = NULL;
		}
	}
	if (m_pdwParseCookies != NULL)
	{
		delete m_pdwParseCookies;
		m_pdwParseCookies = NULL;
	}
	if (m_pnActualLineLength != NULL)
	{
		delete m_pnActualLineLength;
		m_pnActualLineLength = NULL;
	}
	m_nParseArraySize = 0;
	m_nActualLengthArraySize = 0;
	m_ptCursorPos.x = 0;
	m_ptCursorPos.y = 0;
	m_ptSelStart = m_ptSelEnd = m_ptCursorPos;
	m_bDragSelection = FALSE;
	m_bVertScrollBarLocked = FALSE;
	m_bHorzScrollBarLocked = FALSE;
	if (::IsWindow(m_hWnd))
		UpdateCaret();
	m_bLastSearch = FALSE;
	m_bShowInactiveSelection = FALSE;
	m_bPrintHeader = FALSE;
	m_bPrintFooter = TRUE;

	m_bBookmarkExist  = FALSE;	// More bookmarks
	m_bMultipleSearch = FALSE;	// More search
}

void CCrystalTextView::UpdateCaret()
{
	ASSERT_VALIDTEXTPOS(m_ptCursorPos);
	if (m_bFocused && ! m_bCursorHidden &&
		CalculateActualOffset(m_ptCursorPos.y, m_ptCursorPos.x) >= m_nOffsetChar)
	{
		CreateSolidCaret(2, GetLineHeight());
		SetCaretPos(TextToClient(m_ptCursorPos));
		ShowCaret();
	}
	else
	{
		HideCaret();
	}
}

int CCrystalTextView::GetTabSize()
{
	ASSERT(m_nTabSize >= 0 && m_nTabSize <= 64);
	return m_nTabSize;
}

void CCrystalTextView::SetTabSize(int nTabSize)
{
	ASSERT(nTabSize >= 0 && nTabSize <= 64);
	if (m_nTabSize != nTabSize)
	{
		m_nTabSize = nTabSize;
		if (m_pnActualLineLength != NULL)
		{
			delete m_pnActualLineLength;
			m_pnActualLineLength = NULL;
		}
		m_nActualLengthArraySize = 0;
		m_nMaxLineLength = -1;
		RecalcHorzScrollBar();
		Invalidate();
		UpdateCaret();
	}
}

CFont *CCrystalTextView::GetFont(BOOL bItalic /*= FALSE*/, BOOL bBold /*= FALSE*/)
{
	int nIndex = 0;
	if (bBold)
		nIndex |= 1;
	if (bItalic)
		nIndex |= 2;

	if (m_apFonts[nIndex] == NULL)
	{
		m_apFonts[nIndex] = new CFont;
		m_lfBaseFont.lfWeight = bBold ? FW_BOLD : FW_NORMAL;
		m_lfBaseFont.lfItalic = (BYTE) bItalic;
		if (! m_apFonts[nIndex]->CreateFontIndirect(&m_lfBaseFont))
		{
			delete m_apFonts[nIndex];
			m_apFonts[nIndex] = NULL;
			return CView::GetFont();
		}

	}
	return m_apFonts[nIndex];
}

void CCrystalTextView::CalcLineCharDim()
{
	CDC *pdc = GetDC();
	CFont *pOldFont = pdc->SelectObject(GetFont());
	CSize szCharExt = pdc->GetTextExtent(_T("X"));
	m_nLineHeight = szCharExt.cy;
	if (m_nLineHeight < 1)
		m_nLineHeight = 1;
	m_nCharWidth = szCharExt.cx;
	/*
	TEXTMETRIC tm;
	if (pdc->GetTextMetrics(&tm))
		m_nCharWidth -= tm.tmOverhang;
	*/
	pdc->SelectObject(pOldFont);
	ReleaseDC(pdc);
}

int CCrystalTextView::GetLineHeight()
{
	if (m_nLineHeight == -1)
		CalcLineCharDim();
	return m_nLineHeight;
}

int CCrystalTextView::GetCharWidth()
{
	if (m_nCharWidth == -1)
		CalcLineCharDim();
	return m_nCharWidth;
}

int CCrystalTextView::GetMaxLineLength()
{
	if (m_nMaxLineLength == -1)
	{
		m_nMaxLineLength = 0;
		int nLineCount = GetLineCount();
		for (int I = 0; I < nLineCount; I ++)
		{
			int nActualLength = GetLineActualLength(I);
			if (m_nMaxLineLength < nActualLength)
				m_nMaxLineLength = nActualLength;
		}
	}
	return m_nMaxLineLength;
}

CCrystalTextView *CCrystalTextView::GetSiblingView(int nRow, int nCol)
{
	CSplitterWnd *pSplitter = GetParentSplitter(this, FALSE);
	if (pSplitter == NULL)
		return NULL;
	CWnd *pWnd = CWnd::FromHandlePermanent(
		::GetDlgItem(pSplitter->m_hWnd, pSplitter->IdFromRowCol(nRow, nCol)));
	if (pWnd == NULL || ! pWnd->IsKindOf(RUNTIME_CLASS(CCrystalTextView)))
		return NULL;
	return (CCrystalTextView *) pWnd;
}

void CCrystalTextView::OnInitialUpdate()
{
	CView::OnInitialUpdate();

	AttachToBuffer(NULL);

	CSplitterWnd *pSplitter = GetParentSplitter(this, FALSE);
	if (pSplitter != NULL)
	{
		//	See CSplitterWnd::IdFromRowCol() implementation
		int nRow = (GetDlgCtrlID() - AFX_IDW_PANE_FIRST) / 16;
		int nCol = (GetDlgCtrlID() - AFX_IDW_PANE_FIRST) % 16;
		ASSERT(nRow >= 0 && nRow < pSplitter->GetRowCount());
		ASSERT(nCol >= 0 && nCol < pSplitter->GetColumnCount());

		if (nRow > 0)
		{
			CCrystalTextView *pSiblingView = GetSiblingView(0, nCol);
			if (pSiblingView != NULL && pSiblingView != this)
			{
				m_nOffsetChar = pSiblingView->m_nOffsetChar;
				ASSERT(m_nOffsetChar >= 0 && m_nOffsetChar <= GetMaxLineLength());
			}
		}

		if (nCol > 0)
		{
			CCrystalTextView *pSiblingView = GetSiblingView(nRow, 0);
			if (pSiblingView != NULL && pSiblingView != this)
			{
				m_nTopLine = pSiblingView->m_nTopLine;
				ASSERT(m_nTopLine >= 0 && m_nTopLine < GetLineCount());
			}
		}
	}
}


/////////////////////////////////////////////////////////////////////////////
// CCrystalTextView printing

void CCrystalTextView::OnPrepareDC(CDC* pDC, CPrintInfo* pInfo) 
{
	CView::OnPrepareDC(pDC, pInfo);

	if (pInfo != NULL)
	{
		pInfo->m_bContinuePrinting = TRUE;
		if (m_pnPages != NULL && (int) pInfo->m_nCurPage > m_nPrintPages)
			pInfo->m_bContinuePrinting = FALSE;
	}
}

BOOL CCrystalTextView::OnPreparePrinting(CPrintInfo* pInfo)
{
	return DoPreparePrinting(pInfo);
}

int CCrystalTextView::PrintLineHeight(CDC *pdc, int nLine)
{
	ASSERT(nLine >= 0 && nLine < GetLineCount());
	ASSERT(m_nPrintLineHeight > 0);
	int nLength = GetLineLength(nLine);
	if (nLength == 0)
		return m_nPrintLineHeight;

	CString line;
	LPCTSTR pszChars = GetLineChars(nLine);
	ExpandChars(pszChars, 0, nLength, line);
	CRect rcPrintArea = m_rcPrintArea;
	pdc->DrawText(line, &rcPrintArea, DT_LEFT | DT_NOPREFIX | DT_TOP | DT_WORDBREAK | DT_CALCRECT);
	return rcPrintArea.Height();
}

void CCrystalTextView::GetPrintHeaderText(int nPageNum, CString &text)
{
	ASSERT(m_bPrintHeader);
	text = _T("");
}

void CCrystalTextView::GetPrintFooterText(int nPageNum, CString &text)
{
	ASSERT(m_bPrintFooter);
	text.Format(_T("Page %d/%d"), nPageNum, m_nPrintPages);
}

void CCrystalTextView::PrintHeader(CDC *pdc, int nPageNum)
{
	CRect rcHeader = m_rcPrintArea;
	rcHeader.bottom = rcHeader.top;
	rcHeader.top -= (m_nPrintLineHeight + m_nPrintLineHeight / 2);

	CString text;
	GetPrintHeaderText(nPageNum, text);
	if (! text.IsEmpty())
		pdc->DrawText(text, &rcHeader, DT_CENTER | DT_NOPREFIX | DT_TOP | DT_SINGLELINE);
}

void CCrystalTextView::PrintFooter(CDC *pdc, int nPageNum)
{
	CRect rcFooter = m_rcPrintArea;
	rcFooter.top = rcFooter.bottom;
	rcFooter.bottom += (m_nPrintLineHeight + m_nPrintLineHeight / 2);

	CString text;
	GetPrintFooterText(nPageNum, text);
	if (! text.IsEmpty())
		pdc->DrawText(text, &rcFooter, DT_CENTER | DT_NOPREFIX | DT_BOTTOM | DT_SINGLELINE);
}

void CCrystalTextView::RecalcPageLayouts(CDC *pdc, CPrintInfo *pInfo)
{
	m_ptPageArea = pInfo->m_rectDraw;
	m_ptPageArea.NormalizeRect();

	m_nPrintLineHeight = pdc->GetTextExtent(_T("X")).cy;

	m_rcPrintArea = m_ptPageArea;
	CSize szTopLeft, szBottomRight;
	CWinApp *pApp = AfxGetApp();
	ASSERT(pApp != NULL);
	szTopLeft.cx = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_LEFT, DEFAULT_PRINT_MARGIN);
	szBottomRight.cx = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_RIGHT, DEFAULT_PRINT_MARGIN);
	szTopLeft.cy = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_TOP, DEFAULT_PRINT_MARGIN);
	szBottomRight.cy = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_BOTTOM, DEFAULT_PRINT_MARGIN);
	pdc->HIMETRICtoLP(&szTopLeft);
	pdc->HIMETRICtoLP(&szBottomRight);
	m_rcPrintArea.left += szTopLeft.cx;
	m_rcPrintArea.right -= szBottomRight.cx;
	m_rcPrintArea.top += szTopLeft.cy;
	m_rcPrintArea.bottom -= szBottomRight.cy;
	if (m_bPrintHeader)
		m_rcPrintArea.top += m_nPrintLineHeight + m_nPrintLineHeight / 2;
	if (m_bPrintFooter)
		m_rcPrintArea.bottom += m_nPrintLineHeight + m_nPrintLineHeight / 2;

	int nLimit = 32;
	m_nPrintPages = 1;
	m_pnPages = new int[nLimit];
	m_pnPages[0] = 0;

	int nLineCount = GetLineCount();
	int nLine = 1;
	int y = m_rcPrintArea.top + PrintLineHeight(pdc, 0);
	while (nLine < nLineCount)
	{
		int nHeight = PrintLineHeight(pdc, nLine);
		if (y + nHeight <= m_rcPrintArea.bottom)
		{
			y += nHeight;
		}
		else
		{
			ASSERT(nLimit >= m_nPrintPages);
			if (nLimit <= m_nPrintPages)
			{
				nLimit += 32;
				int *pnNewPages = new int[nLimit];
				memcpy(pnNewPages, m_pnPages, sizeof(int) * m_nPrintPages);
				delete m_pnPages;
				m_pnPages = pnNewPages;
			}
			ASSERT(nLimit > m_nPrintPages);
			m_pnPages[m_nPrintPages ++] = nLine;
			y = m_rcPrintArea.top + nHeight;
		}
		nLine ++;
	}
}

void CCrystalTextView::OnBeginPrinting(CDC *pdc, CPrintInfo *pInfo)
{
	ASSERT(m_pnPages == NULL);
	ASSERT(m_pPrintFont == NULL);
	CFont *pDisplayFont = GetFont();

	LOGFONT lf;
	pDisplayFont->GetLogFont(&lf);

	CDC *pDisplayDC = GetDC();
	lf.lfHeight = MulDiv(lf.lfHeight, pdc->GetDeviceCaps(LOGPIXELSY), pDisplayDC->GetDeviceCaps(LOGPIXELSY) * 2);
	lf.lfWidth = MulDiv(lf.lfWidth, pdc->GetDeviceCaps(LOGPIXELSX), pDisplayDC->GetDeviceCaps(LOGPIXELSX) * 2);
	ReleaseDC(pDisplayDC);

	m_pPrintFont = new CFont;
	if (! m_pPrintFont->CreateFontIndirect(&lf))
	{
		delete m_pPrintFont;
		m_pPrintFont = NULL;
		return;
	}

	pdc->SelectObject(m_pPrintFont);
}

void CCrystalTextView::OnEndPrinting(CDC *pdc, CPrintInfo *pInfo)
{
	if (m_pPrintFont != NULL)
	{
		delete m_pPrintFont;
		m_pPrintFont = NULL;
	}
	if (m_pnPages != NULL)
	{
		delete m_pnPages;
		m_pnPages = NULL;
	}
	m_nPrintPages = 0;
	m_nPrintLineHeight = 0;
}

void CCrystalTextView::OnPrint(CDC* pdc, CPrintInfo* pInfo) 
{
	if (m_pnPages == NULL)
	{
		RecalcPageLayouts(pdc, pInfo);
		ASSERT(m_pnPages != NULL);
	}

	ASSERT(pInfo->m_nCurPage >= 1 && (int) pInfo->m_nCurPage <= m_nPrintPages);
	int nLine = m_pnPages[pInfo->m_nCurPage - 1];
	int nEndLine = GetLineCount();
	if ((int) pInfo->m_nCurPage < m_nPrintPages)
		nEndLine = m_pnPages[pInfo->m_nCurPage];
	TRACE(_T("Printing page %d of %d, lines %d - %d\n"), pInfo->m_nCurPage, m_nPrintPages,
						nLine, nEndLine - 1);

	if (m_bPrintHeader)
		PrintHeader(pdc, pInfo->m_nCurPage);
	if (m_bPrintFooter)
		PrintFooter(pdc, pInfo->m_nCurPage);

	int y = m_rcPrintArea.top;
	for (; nLine < nEndLine; nLine ++)
	{
		int nLineLength = GetLineLength(nLine);
		if (nLineLength == 0)
		{
			y += m_nPrintLineHeight;
			continue;
		}

		CRect rcPrintRect = m_rcPrintArea;
		rcPrintRect.top = y;
		LPCTSTR pszChars = GetLineChars(nLine);
		CString line;
		ExpandChars(pszChars, 0, nLineLength, line);
		y += pdc->DrawText(line, &rcPrintRect, DT_LEFT | DT_NOPREFIX | DT_TOP | DT_WORDBREAK);
	}
}


/////////////////////////////////////////////////////////////////////////////
// CCrystalTextView message handlers

int CCrystalTextView::GetLineCount()
{
	if (m_pTextBuffer == NULL)
		return 1;		//	Single empty line
	int nLineCount = m_pTextBuffer->GetLineCount();
	ASSERT(nLineCount > 0);
	return nLineCount;
}

int CCrystalTextView::GetLineLength(int nLineIndex)
{
	if (m_pTextBuffer == NULL)
		return 0;
	return m_pTextBuffer->GetLineLength(nLineIndex);
}

LPCTSTR CCrystalTextView::GetLineChars(int nLineIndex)
{
	if (m_pTextBuffer == NULL)
		return NULL;
	return m_pTextBuffer->GetLineChars(nLineIndex);
}

void CCrystalTextView::AttachToBuffer(CCrystalTextBuffer *pBuf /*= NULL*/)
{
	if (m_pTextBuffer != NULL)
		m_pTextBuffer->RemoveView(this);
	if (pBuf == NULL)
	{
		pBuf = LocateTextBuffer();
		//	...
	}
	m_pTextBuffer = pBuf;
	if (m_pTextBuffer != NULL)
		m_pTextBuffer->AddView(this);
	ResetView();

	//	Init scrollbars
	CScrollBar *pVertScrollBarCtrl = GetScrollBarCtrl(SB_VERT);
	if (pVertScrollBarCtrl != NULL)
		pVertScrollBarCtrl->EnableScrollBar(GetScreenLines() >= GetLineCount() ?
											ESB_DISABLE_BOTH : ESB_ENABLE_BOTH);
	CScrollBar *pHorzScrollBarCtrl = GetScrollBarCtrl(SB_HORZ);
	if (pHorzScrollBarCtrl != NULL)
		pHorzScrollBarCtrl->EnableScrollBar(GetScreenChars() >= GetMaxLineLength() ?
											ESB_DISABLE_BOTH : ESB_ENABLE_BOTH);

	//	Update scrollbars
	RecalcVertScrollBar();
	RecalcHorzScrollBar();
}

void CCrystalTextView::DetachFromBuffer()
{
	if (m_pTextBuffer != NULL)
	{
		m_pTextBuffer->RemoveView(this);
		m_pTextBuffer = NULL;
		ResetView();
	}
}

int CCrystalTextView::GetScreenLines()
{
	if (m_nScreenLines == -1)
	{
		CRect rect;
		GetClientRect(&rect);
		m_nScreenLines = rect.Height() / GetLineHeight();
	}
	return m_nScreenLines;
}

BOOL CCrystalTextView::GetItalic(int nColorIndex)
{
	return FALSE;
}

BOOL CCrystalTextView::GetBold(int nColorIndex)
{
	return FALSE;
}

int CCrystalTextView::GetScreenChars()
{
	if (m_nScreenChars == -1)
	{
		CRect rect;
		GetClientRect(&rect);
		m_nScreenChars = (rect.Width() - GetMarginWidth()) / GetCharWidth();
	}
	return m_nScreenChars;
}

void CCrystalTextView::OnDestroy() 
{
	DetachFromBuffer();
	m_hAccel = NULL;

	CView::OnDestroy();

	for (int I = 0; I < 4; I ++)
	{
		if (m_apFonts[I] != NULL)
		{
			m_apFonts[I]->DeleteObject();
			delete m_apFonts[I];
			m_apFonts[I] = NULL;
		}
	}
	if (m_pCacheBitmap != NULL)
	{
		delete m_pCacheBitmap;
		m_pCacheBitmap = NULL;
	}
}

BOOL CCrystalTextView::OnEraseBkgnd(CDC *pdc) 
{
	return TRUE;
}

void CCrystalTextView::OnSize(UINT nType, int cx, int cy) 
{
	CView::OnSize(nType, cx, cy);
	
	if (m_pCacheBitmap != NULL)
	{
		m_pCacheBitmap->DeleteObject();
		delete m_pCacheBitmap;
		m_pCacheBitmap = NULL;
	}
	m_nScreenLines = -1;
	m_nScreenChars = -1;
	RecalcVertScrollBar();
	RecalcHorzScrollBar();
}

void CCrystalTextView::UpdateSiblingScrollPos(BOOL bHorz)
{
	CSplitterWnd *pSplitterWnd = GetParentSplitter(this, FALSE);
	if (pSplitterWnd != NULL)
	{
		//	See CSplitterWnd::IdFromRowCol() implementation for details
		int nCurrentRow = (GetDlgCtrlID() - AFX_IDW_PANE_FIRST) / 16;
		int nCurrentCol = (GetDlgCtrlID() - AFX_IDW_PANE_FIRST) % 16;
		ASSERT(nCurrentRow >= 0 && nCurrentRow < pSplitterWnd->GetRowCount());
		ASSERT(nCurrentCol >= 0 && nCurrentCol < pSplitterWnd->GetColumnCount());

		if (bHorz)
		{
			int nCols = pSplitterWnd->GetColumnCount();
			for (int nCol = 0; nCol < nCols; nCol ++)
			{
				if (nCol != nCurrentCol)	//	We don't need to update ourselves
				{
					CCrystalTextView *pSiblingView = GetSiblingView(nCurrentRow, nCol);
					if (pSiblingView != NULL)
						pSiblingView->OnUpdateSibling(this, TRUE);
				}
			}
		}
		else
		{
			int nRows = pSplitterWnd->GetRowCount();
			for (int nRow = 0; nRow < nRows; nRow ++)
			{
				if (nRow != nCurrentRow)	//	We don't need to update ourselves
				{
					CCrystalTextView *pSiblingView = GetSiblingView(nRow, nCurrentCol);
					if (pSiblingView != NULL)
						pSiblingView->OnUpdateSibling(this, FALSE);
				}
			}
		}
	}
}

void CCrystalTextView::OnUpdateSibling(CCrystalTextView *pUpdateSource, BOOL bHorz)
{
	if (pUpdateSource != this)
	{
		ASSERT(pUpdateSource != NULL);
		ASSERT_KINDOF(CCrystalTextView, pUpdateSource);
		if (bHorz)
		{
			ASSERT(pUpdateSource->m_nTopLine >= 0);
			ASSERT(pUpdateSource->m_nTopLine < GetLineCount());
			if (pUpdateSource->m_nTopLine != m_nTopLine)
			{
				ScrollToLine(pUpdateSource->m_nTopLine, TRUE, FALSE);
				UpdateCaret();
			}
		}
		else
		{
			ASSERT(pUpdateSource->m_nOffsetChar >= 0);
			ASSERT(pUpdateSource->m_nOffsetChar < GetMaxLineLength());
			if (pUpdateSource->m_nOffsetChar != m_nOffsetChar)
			{
				ScrollToChar(pUpdateSource->m_nOffsetChar, TRUE, FALSE);
				UpdateCaret();
			}
		}
	}
}

void CCrystalTextView::RecalcVertScrollBar(BOOL bPositionOnly /*= FALSE*/)
{
	SCROLLINFO si;
	si.cbSize = sizeof(si);
	if (bPositionOnly)
	{
		si.fMask = SIF_POS;
		si.nPos = m_nTopLine;
	}
	else
	{
		if (GetScreenLines() >= GetLineCount() && m_nTopLine > 0)
		{
			m_nTopLine = 0;
			Invalidate();
			UpdateCaret();
		}
		si.fMask = SIF_DISABLENOSCROLL | SIF_PAGE | SIF_POS | SIF_RANGE;
		si.nMin = 0;
		si.nMax = GetLineCount() - 1;
		si.nPage = GetScreenLines();
		si.nPos = m_nTopLine;
	}
	VERIFY(SetScrollInfo(SB_VERT, &si));
}

void CCrystalTextView::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	CView::OnVScroll(nSBCode, nPos, pScrollBar);

	//	Note we cannot use nPos because of its 16-bit nature
	SCROLLINFO si;
	si.cbSize = sizeof(si);
	si.fMask = SIF_ALL;
	VERIFY(GetScrollInfo(SB_VERT, &si));

	int nPageLines = GetScreenLines();
	int nLineCount = GetLineCount();

	int nNewTopLine;
	BOOL bDisableSmooth = TRUE;
	switch (nSBCode)
	{
	case SB_TOP:
		nNewTopLine = 0;
		bDisableSmooth = FALSE;
		break;
	case SB_BOTTOM:
		nNewTopLine = nLineCount - nPageLines + 1;
		bDisableSmooth = FALSE;
		break;
	case SB_LINEUP:
		nNewTopLine = m_nTopLine - 1;
		break;
	case SB_LINEDOWN:
		nNewTopLine = m_nTopLine + 1;
		break;
	case SB_PAGEUP:
		nNewTopLine = m_nTopLine - si.nPage + 1;
		bDisableSmooth = FALSE;
		break;
	case SB_PAGEDOWN:
		nNewTopLine = m_nTopLine + si.nPage - 1;
		bDisableSmooth = FALSE;
		break;
	case SB_THUMBPOSITION:
	case SB_THUMBTRACK:
		nNewTopLine = si.nTrackPos;
		break;
	default:
		return;
	}

	if (nNewTopLine < 0)
		nNewTopLine = 0;
	if (nNewTopLine >= nLineCount)
		nNewTopLine = nLineCount - 1;
	ScrollToLine(nNewTopLine, bDisableSmooth);
}

void CCrystalTextView::RecalcHorzScrollBar(BOOL bPositionOnly /*= FALSE*/)
{
	//	Again, we cannot use nPos because it's 16-bit
	SCROLLINFO si;
	si.cbSize = sizeof(si);
	if (bPositionOnly)
	{
		si.fMask = SIF_POS;
		si.nPos = m_nOffsetChar;
	}
	else
	{
		if (GetScreenChars() >= GetMaxLineLength() && m_nOffsetChar > 0)
		{
			m_nOffsetChar = 0;
			Invalidate();
			UpdateCaret();
		}
		si.fMask = SIF_DISABLENOSCROLL | SIF_PAGE | SIF_POS | SIF_RANGE;
		si.nMin = 0;
		si.nMax = GetMaxLineLength() - 1;
		si.nPage = GetScreenChars();
		si.nPos = m_nOffsetChar;
	}
	VERIFY(SetScrollInfo(SB_HORZ, &si));
}

void CCrystalTextView::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	CView::OnHScroll(nSBCode, nPos, pScrollBar);

	SCROLLINFO si;
	si.cbSize = sizeof(si);
	si.fMask = SIF_ALL;
	VERIFY(GetScrollInfo(SB_HORZ, &si));

	int nPageChars = GetScreenChars();
	int nMaxLineLength = GetMaxLineLength();

	int nNewOffset;
	switch (nSBCode)
	{
	case SB_LEFT:
		nNewOffset = 0;
		break;
	case SB_BOTTOM:
		nNewOffset = nMaxLineLength - nPageChars + 1;
		break;
	case SB_LINEUP:
		nNewOffset = m_nOffsetChar - 1;
		break;
	case SB_LINEDOWN:
		nNewOffset = m_nOffsetChar + 1;
		break;
	case SB_PAGEUP:
		nNewOffset = m_nOffsetChar - si.nPage + 1;
		break;
	case SB_PAGEDOWN:
		nNewOffset = m_nOffsetChar + si.nPage - 1;
		break;
	case SB_THUMBPOSITION:
	case SB_THUMBTRACK:
		nNewOffset = si.nTrackPos;
		break;
	default:
		return;
	}

	if (nNewOffset >= nMaxLineLength)
		nNewOffset = nMaxLineLength - 1;
	if (nNewOffset < 0)
		nNewOffset = 0;
	ScrollToChar(nNewOffset, TRUE);
	UpdateCaret();
}

BOOL CCrystalTextView::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) 
{
	if (nHitTest == HTCLIENT)
	{
		CPoint pt;
		::GetCursorPos(&pt);
		ScreenToClient(&pt);
		if (pt.x < GetMarginWidth())
		{
			::SetCursor(::LoadCursor(GetResourceHandle(), MAKEINTRESOURCE(IDR_MARGIN_CURSOR)));
		}
		else
		{
			CPoint ptText = ClientToText(pt);
			PrepareSelBounds();
			if (IsInsideSelBlock(ptText))
			{
				//	[JRT]:	Support For Disabling Drag and Drop...
				if (!m_bDisableDragAndDrop)				// If Drag And Drop Not Disabled
					::SetCursor(::LoadCursor(NULL, MAKEINTRESOURCE(IDC_ARROW)));	// Set To Arrow Cursor
			}
			else
				::SetCursor(::LoadCursor(NULL, MAKEINTRESOURCE(IDC_IBEAM)));
		}
		return TRUE;
	}
	return CView::OnSetCursor(pWnd, nHitTest, message);
}

CPoint CCrystalTextView::ClientToText(const CPoint &point)
{
	int nLineCount = GetLineCount();

	CPoint pt;
	pt.y = m_nTopLine + point.y / GetLineHeight();
	if (pt.y >= nLineCount)
		pt.y = nLineCount - 1;
	if (pt.y < 0)
		pt.y = 0;

	int nLength = 0;
	LPCTSTR pszLine = NULL;
	if (pt.y >= 0 && pt.y < nLineCount)
	{
		nLength = GetLineLength(pt.y);
		pszLine = GetLineChars(pt.y);
	}

	int nPos = m_nOffsetChar + (point.x - GetMarginWidth()) / GetCharWidth();
	if (nPos < 0)
		nPos = 0;

	int nIndex = 0, nCurPos = 0;
	int nTabSize = GetTabSize();
	while (nIndex < nLength)
	{
		if (pszLine[nIndex] == _T('\t'))
			nCurPos += (nTabSize - nCurPos % nTabSize);
		else
			nCurPos ++;

		if (nCurPos > nPos)
			break;

		nIndex ++;
	}

	ASSERT(nIndex >= 0 && nIndex <= nLength);
	pt.x = nIndex;
	return pt;
}

#ifdef _DEBUG
void CCrystalTextView::AssertValidTextPos(const CPoint &point)
{
	if (GetLineCount() > 0)
	{
		ASSERT(m_nTopLine >= 0 && m_nOffsetChar >= 0);
		ASSERT(point.y >= 0 && point.y < GetLineCount());
		ASSERT(point.x >= 0 && point.x <= GetLineLength(point.y));
	}
}
#endif

CPoint CCrystalTextView::TextToClient(const CPoint &point)
{
	ASSERT_VALIDTEXTPOS(point);
	int nLength = GetLineLength(point.y);
	LPCTSTR pszLine = GetLineChars(point.y);

	CPoint pt;
	pt.y = (point.y - m_nTopLine) * GetLineHeight();
	pt.x = 0;
	int nTabSize = GetTabSize();
	for (int nIndex = 0; nIndex < point.x; nIndex ++)
	{
		if (pszLine[nIndex] == _T('\t'))
			pt.x += (nTabSize - pt.x % nTabSize);
		else
			pt.x ++;
	}

	pt.x = (pt.x - m_nOffsetChar) * GetCharWidth() + GetMarginWidth();
	return pt;
}

void CCrystalTextView::InvalidateLines(int nLine1, int nLine2, BOOL bInvalidateMargin /*= FALSE*/)
{
	bInvalidateMargin = TRUE;
	if (nLine2 == -1)
	{
		CRect rcInvalid;
		GetClientRect(&rcInvalid);
		if (! bInvalidateMargin)
			rcInvalid.left += GetMarginWidth();
		rcInvalid.top = (nLine1 - m_nTopLine) * GetLineHeight();
		InvalidateRect(&rcInvalid, FALSE);
	}
	else
	{
		if (nLine2 < nLine1)
		{
			int nTemp = nLine1;
			nLine1 = nLine2;
			nLine2 = nTemp;
		}
		CRect rcInvalid;
		GetClientRect(&rcInvalid);
		if (! bInvalidateMargin)
			rcInvalid.left += GetMarginWidth();
		rcInvalid.top = (nLine1 - m_nTopLine) * GetLineHeight();
		rcInvalid.bottom = (nLine2 - m_nTopLine + 1) * GetLineHeight();
		InvalidateRect(&rcInvalid, FALSE);
	}
}

void CCrystalTextView::SetSelection(const CPoint &ptStart, const CPoint &ptEnd)
{
	ASSERT_VALIDTEXTPOS(ptStart);
	ASSERT_VALIDTEXTPOS(ptEnd);
	if (m_ptSelStart == ptStart)
	{
		if (m_ptSelEnd != ptEnd)
			InvalidateLines(ptEnd.y, m_ptSelEnd.y);
	}
	else
	{
		InvalidateLines(ptStart.y, ptEnd.y);
		InvalidateLines(m_ptSelStart.y, m_ptSelEnd.y);
	}
	m_ptSelStart = ptStart;
	m_ptSelEnd = ptEnd;
}

void CCrystalTextView::AdjustTextPoint(CPoint &point)
{
	point.x += GetCharWidth() / 2;	//todo
}

void CCrystalTextView::OnSetFocus(CWnd* pOldWnd) 
{
	CView::OnSetFocus(pOldWnd);

	m_bFocused = TRUE;
	if (m_ptSelStart != m_ptSelEnd)
		InvalidateLines(m_ptSelStart.y, m_ptSelEnd.y);
	UpdateCaret();
}

DWORD CCrystalTextView::ParseLine(DWORD dwCookie, int nLineIndex, TEXTBLOCK *pBuf, int &nActualItems)
{
	return 0;
}

int CCrystalTextView::CalculateActualOffset(int nLineIndex, int nCharIndex)
{
	int nLength = GetLineLength(nLineIndex);
	ASSERT(nCharIndex >= 0 && nCharIndex <= nLength);
	LPCTSTR pszChars = GetLineChars(nLineIndex);
	int nOffset = 0;
	int nTabSize = GetTabSize();
	for (int I = 0; I < nCharIndex; I ++)
	{
		if (pszChars[I] == _T('\t'))
			nOffset += (nTabSize - nOffset % nTabSize);
		else
			nOffset ++;
	}
	return nOffset;
}

int CCrystalTextView::ApproxActualOffset(int nLineIndex, int nOffset)
{
	if (nOffset == 0)
		return 0;

	int nLength = GetLineLength(nLineIndex);
	LPCTSTR pszChars = GetLineChars(nLineIndex);
	int nCurrentOffset = 0;
	int nTabSize = GetTabSize();
	for (int I = 0; I < nLength; I ++)
	{
		if (pszChars[I] == _T('\t'))
			nCurrentOffset += (nTabSize - nCurrentOffset % nTabSize);
		else
			nCurrentOffset ++;
		if (nCurrentOffset >= nOffset)
		{
			if (nOffset <= nCurrentOffset - nTabSize / 2)
				return I;
			return I + 1;
		}
	}
	return nLength;
}

void CCrystalTextView::EnsureVisible(CPoint pt)
{
	//	Scroll vertically
	int nLineCount = GetLineCount();
	int nNewTopLine = m_nTopLine;
	if (pt.y >= nNewTopLine + GetScreenLines())
	{
		nNewTopLine = pt.y - GetScreenLines() + 1;
	}
	if (pt.y < nNewTopLine)
	{
		nNewTopLine = pt.y;
	}

	if (nNewTopLine < 0)
		nNewTopLine = 0;
	if (nNewTopLine >= nLineCount)
		nNewTopLine = nLineCount - 1;

	if (m_nTopLine != nNewTopLine)
	{
		ScrollToLine(nNewTopLine);
		UpdateSiblingScrollPos(TRUE);
	}

	//	Scroll horizontally
	int nActualPos = CalculateActualOffset(pt.y, pt.x);
	int nNewOffset = m_nOffsetChar;
	if (nActualPos > nNewOffset + GetScreenChars())
	{
		nNewOffset = nActualPos - GetScreenChars();
	}
	if (nActualPos < nNewOffset)
	{
		nNewOffset = nActualPos;
	}

	if (nNewOffset >= GetMaxLineLength())
		nNewOffset = GetMaxLineLength() - 1;
	if (nNewOffset < 0)
		nNewOffset = 0;

	if (m_nOffsetChar != nNewOffset)
	{
		ScrollToChar(nNewOffset);
		UpdateCaret();
		UpdateSiblingScrollPos(FALSE);
	}
}

void CCrystalTextView::OnKillFocus(CWnd* pNewWnd) 
{
	CView::OnKillFocus(pNewWnd);

	m_bFocused = FALSE;
	UpdateCaret();
	if (m_ptSelStart != m_ptSelEnd)
		InvalidateLines(m_ptSelStart.y, m_ptSelEnd.y);
	if (m_bDragSelection)
	{
		ReleaseCapture();
		KillTimer(m_nDragSelTimer);
		m_bDragSelection = FALSE;
	}
}

void CCrystalTextView::OnSysColorChange() 
{
	CView::OnSysColorChange();
	Invalidate();
}

void CCrystalTextView::GetText(const CPoint &ptStart, const CPoint &ptEnd, CString &text)
{
	if (m_pTextBuffer != NULL)
		m_pTextBuffer->GetText(ptStart.y, ptStart.x, ptEnd.y, ptEnd.x, text);
	else
		text = _T("");
}

void CCrystalTextView::UpdateView(CCrystalTextView *pSource, CUpdateContext *pContext,
								  DWORD dwFlags, int nLineIndex /*= -1*/)
{
	if (dwFlags & UPDATE_RESET)
	{
		ResetView();
		RecalcVertScrollBar();
		RecalcHorzScrollBar();
		return;
	}

	int nLineCount = GetLineCount();
	ASSERT(nLineCount > 0);
	ASSERT(nLineIndex >= -1 && nLineIndex < nLineCount);
	if ((dwFlags & UPDATE_SINGLELINE) != 0)
	{
		ASSERT(nLineIndex != -1);
		//	All text below this line should be reparsed
		if (m_pdwParseCookies != NULL)
		{
			ASSERT(m_nParseArraySize == nLineCount);
			memset(m_pdwParseCookies + nLineIndex, 0xff, sizeof(DWORD) * (m_nParseArraySize - nLineIndex));
		}
		//	This line'th actual length must be recalculated
		if (m_pnActualLineLength != NULL)
		{
			ASSERT(m_nActualLengthArraySize == nLineCount);
			m_pnActualLineLength[nLineIndex] = -1;
		}
		//	Repaint the lines
		InvalidateLines(nLineIndex, -1, TRUE);
	}
	else
	{
		if (nLineIndex == -1)
			nLineIndex = 0;		//	Refresh all text
		//	All text below this line should be reparsed
		if (m_pdwParseCookies != NULL)
		{
			if (m_nParseArraySize != nLineCount)
			{
				//	Reallocate cookies array
				DWORD *pdwNewArray = new DWORD[nLineCount];
				if (nLineIndex > 0)
					memcpy(pdwNewArray, m_pdwParseCookies, sizeof(DWORD) * nLineIndex);
				delete m_pdwParseCookies;
				m_nParseArraySize = nLineCount;
				m_pdwParseCookies = pdwNewArray;
			}
			memset(m_pdwParseCookies + nLineIndex, 0xff, sizeof(DWORD) * (m_nParseArraySize - nLineIndex));
		}
		//	Recalculate actual length for all lines below this
		if (m_pnActualLineLength != NULL)
		{
			if (m_nActualLengthArraySize != nLineCount)
			{
				//	Reallocate actual length array
				int *pnNewArray = new int[nLineCount];
				if (nLineIndex > 0)
					memcpy(pnNewArray, m_pnActualLineLength, sizeof(int) * nLineIndex);
				delete m_pnActualLineLength;
				m_nActualLengthArraySize = nLineCount;
				m_pnActualLineLength = pnNewArray;
			}
			memset(m_pnActualLineLength + nLineIndex, 0xff, sizeof(DWORD) * (m_nActualLengthArraySize - nLineIndex));
		}
		//	Repaint the lines
		InvalidateLines(nLineIndex, -1, TRUE);
	}

	//	All those points must be recalculated and validated
	if (pContext != NULL)
	{
		pContext->RecalcPoint(m_ptCursorPos);
		pContext->RecalcPoint(m_ptSelStart);
		pContext->RecalcPoint(m_ptSelEnd);
		pContext->RecalcPoint(m_ptAnchor);
		ASSERT_VALIDTEXTPOS(m_ptCursorPos);
		ASSERT_VALIDTEXTPOS(m_ptSelStart);
		ASSERT_VALIDTEXTPOS(m_ptSelEnd);
		ASSERT_VALIDTEXTPOS(m_ptAnchor);
		if (m_bDraggingText)
		{
			pContext->RecalcPoint(m_ptDraggedTextBegin);
			pContext->RecalcPoint(m_ptDraggedTextEnd);
			ASSERT_VALIDTEXTPOS(m_ptDraggedTextBegin);
			ASSERT_VALIDTEXTPOS(m_ptDraggedTextEnd);
		}
		CPoint ptTopLine(0, m_nTopLine);
		pContext->RecalcPoint(ptTopLine);
		ASSERT_VALIDTEXTPOS(ptTopLine);
		m_nTopLine = ptTopLine.y;
		UpdateCaret();
	}

	//	Recalculate vertical scrollbar, if needed
	if ((dwFlags & UPDATE_VERTRANGE) != 0)
	{
		if (! m_bVertScrollBarLocked)
			RecalcVertScrollBar();
	}

	//	Recalculate horizontal scrollbar, if needed
	if ((dwFlags & UPDATE_HORZRANGE) != 0)
	{
		m_nMaxLineLength = -1;
		if (! m_bHorzScrollBarLocked)
			RecalcHorzScrollBar();
	}
}

HINSTANCE CCrystalTextView::GetResourceHandle()
{
#ifdef CRYSEDIT_RES_HANDLE
	return CRYSEDIT_RES_HANDLE;
#else
	if (s_hResourceInst != NULL)
		return s_hResourceInst;
	return AfxGetResourceHandle();
#endif
}

int CCrystalTextView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	memset(&m_lfBaseFont, 0, sizeof(m_lfBaseFont));
	lstrcpy(m_lfBaseFont.lfFaceName, _T("FixedSys"));
	m_lfBaseFont.lfHeight = 0;
	m_lfBaseFont.lfWeight = FW_NORMAL;
	m_lfBaseFont.lfItalic = FALSE;
	m_lfBaseFont.lfCharSet = DEFAULT_CHARSET;
	m_lfBaseFont.lfOutPrecision = OUT_DEFAULT_PRECIS;
	m_lfBaseFont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
	m_lfBaseFont.lfQuality = DEFAULT_QUALITY;
	m_lfBaseFont.lfPitchAndFamily = DEFAULT_PITCH;

	if (CView::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	ASSERT(m_hAccel == NULL);
	m_hAccel = ::LoadAccelerators(GetResourceHandle(), MAKEINTRESOURCE(IDR_DEFAULT_ACCEL));
	ASSERT(m_hAccel != NULL);
	return 0;
}

void CCrystalTextView::SetAnchor(const CPoint &ptNewAnchor)
{
	ASSERT_VALIDTEXTPOS(ptNewAnchor);
	m_ptAnchor = ptNewAnchor;
}

void CCrystalTextView::OnEditOperation(int nAction, LPCTSTR pszText)
{
}

BOOL CCrystalTextView::PreTranslateMessage(MSG *pMsg) 
{
	if (pMsg->message >= WM_KEYFIRST && pMsg->message <= WM_KEYLAST)
	{
		if (m_hAccel != NULL)
		{
			if (::TranslateAccelerator(m_hWnd, m_hAccel, pMsg))
				return TRUE;
		}
	}

	return CView::PreTranslateMessage(pMsg);
}

CPoint CCrystalTextView::GetCursorPos()
{
	return m_ptCursorPos;
}

void CCrystalTextView::SetCursorPos(const CPoint &ptCursorPos)
{
	ASSERT_VALIDTEXTPOS(ptCursorPos);
	m_ptCursorPos = ptCursorPos;
	m_nIdealCharPos = CalculateActualOffset(m_ptCursorPos.y, m_ptCursorPos.x);
	UpdateCaret();
}

void CCrystalTextView::SetSelectionMargin(BOOL bSelMargin)
{
	if (m_bSelMargin != bSelMargin)
	{
		m_bSelMargin = bSelMargin;
		if (::IsWindow(m_hWnd))
		{
			m_nScreenChars = -1;
			Invalidate();
			RecalcHorzScrollBar();
		}
	}
}

void CCrystalTextView::GetFont(LOGFONT &lf)
{
	lf = m_lfBaseFont;
}

void CCrystalTextView::SetFont(const LOGFONT &lf)
{
	m_lfBaseFont = lf;
	m_nScreenLines = -1;
	m_nScreenChars = -1;
	m_nCharWidth = -1;
	m_nLineHeight = -1;
	if (m_pCacheBitmap != NULL)
	{
		m_pCacheBitmap->DeleteObject();
		delete m_pCacheBitmap;
		m_pCacheBitmap = NULL;
	}
	for (int I = 0; I < 4; I ++)
	{
		if (m_apFonts[I] != NULL)
		{
			m_apFonts[I]->DeleteObject();
			delete m_apFonts[I];
			m_apFonts[I] = NULL;
		}
	}
	if (::IsWindow(m_hWnd))
	{
		RecalcVertScrollBar();
		RecalcHorzScrollBar();
		UpdateCaret();
		Invalidate();
	}
}

void CCrystalTextView::OnUpdateIndicatorPosition(CCmdUI* pCmdUI)
{
	ASSERT_VALIDTEXTPOS(m_ptCursorPos);
	CString stat;
	stat.Format(_T("Ln %d, Col %d"), m_ptCursorPos.y + 1, m_ptCursorPos.x + 1);
	pCmdUI->SetText(stat);
}

void CCrystalTextView::OnUpdateIndicatorCRLF(CCmdUI* pCmdUI)
{
	if (m_pTextBuffer != NULL)
	{
		int crlfMode = m_pTextBuffer->GetCRLFMode();
		switch (crlfMode)
		{
		case CRLF_STYLE_DOS:
			pCmdUI->SetText(_T("DOS"));
			pCmdUI->Enable(TRUE);
			break;
		case CRLF_STYLE_UNIX:
			pCmdUI->SetText(_T("UNIX"));
			pCmdUI->Enable(TRUE);
			break;
		case CRLF_STYLE_MAC:
			pCmdUI->SetText(_T("MAC"));
			pCmdUI->Enable(TRUE);
			break;
		default:
			pCmdUI->SetText(NULL);
			pCmdUI->Enable(FALSE);
		}
	}
	else
	{
		pCmdUI->SetText(NULL);
		pCmdUI->Enable(FALSE);
	}
}

void CCrystalTextView::OnToggleBookmark(UINT nCmdID)
{
	int nBookmarkID = nCmdID - ID_EDIT_TOGGLE_BOOKMARK0;
	ASSERT(nBookmarkID >= 0 && nBookmarkID <= 9);
	if (m_pTextBuffer != NULL)
	{
		DWORD dwFlags = GetLineFlags(m_ptCursorPos.y);
		DWORD dwMask = LF_BOOKMARK(nBookmarkID);
		m_pTextBuffer->SetLineFlag(m_ptCursorPos.y, dwMask, (dwFlags & dwMask) == 0);
	}
}

void CCrystalTextView::OnGoBookmark(UINT nCmdID)
{
	int nBookmarkID = nCmdID - ID_EDIT_GO_BOOKMARK0;
	ASSERT(nBookmarkID >= 0 && nBookmarkID <= 9);
	if (m_pTextBuffer != NULL)
	{
		int nLine = m_pTextBuffer->GetLineWithFlag(LF_BOOKMARK(nBookmarkID));
		if (nLine >= 0)
		{
			CPoint pt(0, nLine);
			ASSERT_VALIDTEXTPOS(pt);
			SetCursorPos(pt);
			SetSelection(pt, pt);
			SetAnchor(pt);
			EnsureVisible(pt);
		}
	}
}

void CCrystalTextView::OnClearBookmarks()
{
	if (m_pTextBuffer != NULL)
	{
		for (int nBookmarkID = 0; nBookmarkID <= 9; nBookmarkID++)
		{
			int nLine = m_pTextBuffer->GetLineWithFlag(LF_BOOKMARK(nBookmarkID));
			if (nLine >= 0)
			{
				m_pTextBuffer->SetLineFlag(nLine, LF_BOOKMARK(nBookmarkID), FALSE);
			}
		}
		
	}
}

void CCrystalTextView::ShowCursor()
{
	m_bCursorHidden = FALSE;
	UpdateCaret();
}

void CCrystalTextView::HideCursor()
{
	m_bCursorHidden = TRUE;
	UpdateCaret();
}

DROPEFFECT CCrystalTextView::GetDropEffect()
{
	return DROPEFFECT_COPY;
}

void CCrystalTextView::OnDropSource(DROPEFFECT de)
{
	ASSERT(de == DROPEFFECT_COPY);
}

HGLOBAL CCrystalTextView::PrepareDragData()
{
	PrepareSelBounds();
	if (m_ptDrawSelStart == m_ptDrawSelEnd)
		return NULL;

	CString text;
	GetText(m_ptDrawSelStart, m_ptDrawSelEnd, text);
	HGLOBAL hData = ::GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, lstrlen(text) + 1);
	if (hData == NULL)
		return NULL;

	LPSTR pszData = (LPSTR) ::GlobalLock(hData);
	USES_CONVERSION;
	strcpy(pszData, T2A(text.GetBuffer(0)));
	text.ReleaseBuffer();
	::GlobalUnlock(hData);

	m_ptDraggedTextBegin = m_ptDrawSelStart;
	m_ptDraggedTextEnd = m_ptDrawSelEnd;
	return hData;
}

static int FindStringHelper(LPCTSTR pszFindWhere, LPCTSTR pszFindWhat, BOOL bWholeWord)
{
	ASSERT(pszFindWhere != NULL);
	ASSERT(pszFindWhat != NULL);
	int nCur = 0;
	int nLength = lstrlen(pszFindWhat);
	for (;;)
	{
#ifdef _UNICODE
		LPCTSTR pszPos = wcsstr(pszFindWhere, pszFindWhat);
#else
		LPCTSTR pszPos = strstr(pszFindWhere, pszFindWhat);
#endif
		if (pszPos == NULL)
			return -1;
		if (! bWholeWord)
			return nCur + (pszPos - pszFindWhere);
		if (pszPos > pszFindWhere && (isalnum(pszPos[-1]) || pszPos[-1] == _T('_')))
		{
			nCur += (pszPos - pszFindWhere);
			pszFindWhere = pszPos + 1;
			continue;
		}
		if (isalnum(pszPos[nLength]) || pszPos[nLength] == _T('_'))
		{
			nCur += (pszPos - pszFindWhere + 1);
			pszFindWhere = pszPos + 1;
			continue;
		}
		return nCur + (pszPos - pszFindWhere);
	}
	ASSERT(FALSE);		// Unreachable
	return -1;
}

BOOL CCrystalTextView::HighlightText(const CPoint &ptStartPos, int nLength)
{
	ASSERT_VALIDTEXTPOS(ptStartPos);
	m_ptCursorPos = ptStartPos;
	m_ptCursorPos.x += nLength;
	ASSERT_VALIDTEXTPOS(m_ptCursorPos);		//	Probably 'nLength' is bigger than expected...
	m_ptAnchor = m_ptCursorPos;
	SetSelection(ptStartPos, m_ptCursorPos);
	UpdateCaret();
	EnsureVisible(m_ptCursorPos);
	return TRUE;
}

BOOL CCrystalTextView::FindText(LPCTSTR pszText, const CPoint &ptStartPos, DWORD dwFlags, 
								BOOL bWrapSearch, CPoint *pptFoundPos)
{
	int nLineCount = GetLineCount();
	return FindTextInBlock(pszText, ptStartPos, CPoint(0, 0),
			CPoint(GetLineLength(nLineCount - 1), nLineCount - 1),
			dwFlags, bWrapSearch, pptFoundPos);
}

BOOL CCrystalTextView::FindTextInBlock(LPCTSTR pszText, const CPoint &ptStartPosition, 
									   const CPoint &ptBlockBegin, const CPoint &ptBlockEnd,
										DWORD dwFlags, BOOL bWrapSearch, CPoint *pptFoundPos)
{
	CPoint ptCurrentPos = ptStartPosition;

	ASSERT(pszText != NULL && lstrlen(pszText) > 0);
	ASSERT_VALIDTEXTPOS(ptCurrentPos);
	ASSERT_VALIDTEXTPOS(ptBlockBegin);
	ASSERT_VALIDTEXTPOS(ptBlockEnd);
	ASSERT(ptBlockBegin.y < ptBlockEnd.y || ptBlockBegin.y == ptBlockEnd.y && 
		ptBlockBegin.x <= ptBlockEnd.x);
	if (ptBlockBegin == ptBlockEnd)
		return FALSE;

	if (ptCurrentPos.y < ptBlockBegin.y || ptCurrentPos.y == ptBlockBegin.y && 
		ptCurrentPos.x < ptBlockBegin.x)
		ptCurrentPos = ptBlockBegin;

	CString what = pszText;
	if ((dwFlags & FIND_MATCH_CASE) == 0)
		what.MakeUpper();

	if (dwFlags & FIND_DIRECTION_UP)
	{
		//	Let's check if we deal with whole text.
		//	At this point, we cannot search *up* in selection
		ASSERT(ptBlockBegin.x == 0 && ptBlockBegin.y == 0);
		ASSERT(ptBlockEnd.x == GetLineLength(GetLineCount() - 1) &&
				ptBlockEnd.y == GetLineCount() - 1);

		//	Proceed as if we have whole text search.
		for (;;)
		{
			while (ptCurrentPos.y >= 0)
			{
				int nLineLength = GetLineLength(ptCurrentPos.y);
				nLineLength -= ptCurrentPos.x;
				if (nLineLength <= 0)
				{
					ptCurrentPos.x = 0;
					ptCurrentPos.y --;
					continue;
				}

				LPCTSTR pszChars = GetLineChars(ptCurrentPos.y);
				pszChars += ptCurrentPos.x;

				CString line;
				lstrcpyn(line.GetBuffer(nLineLength + 1), pszChars, nLineLength + 1);
				line.ReleaseBuffer();
				if ((dwFlags & FIND_MATCH_CASE) == 0)
					line.MakeUpper();

				int nPos = ::FindStringHelper(line, what, (dwFlags & FIND_WHOLE_WORD) != 0);
				if (nPos >= 0)		//	Found text!
				{
					ptCurrentPos.x += nPos;
					*pptFoundPos = ptCurrentPos;
					return TRUE;
				}

				ptCurrentPos.x = 0;
				ptCurrentPos.y --;
			}

			//	Beginning of text reached
			if (! bWrapSearch)
				return FALSE;

			//	Start again from the end of text
			bWrapSearch = FALSE;
			ptCurrentPos = CPoint(0, GetLineCount() - 1);
		}
	}
	else
	{
		for (;;)
		{
			while (ptCurrentPos.y <= ptBlockEnd.y)
			{
				int nLineLength = GetLineLength(ptCurrentPos.y);
				nLineLength -= ptCurrentPos.x;
				if (nLineLength <= 0)
				{
					ptCurrentPos.x = 0;
					ptCurrentPos.y ++;
					continue;
				}

				LPCTSTR pszChars = GetLineChars(ptCurrentPos.y);
				pszChars += ptCurrentPos.x;

				//	Prepare necessary part of line
				CString line;
				lstrcpyn(line.GetBuffer(nLineLength + 1), pszChars, nLineLength + 1);
				line.ReleaseBuffer();
				if ((dwFlags & FIND_MATCH_CASE) == 0)
					line.MakeUpper();

				//	Perform search in the line
				int nPos = ::FindStringHelper(line, what, (dwFlags & FIND_WHOLE_WORD) != 0);
				if (nPos >= 0)
				{
					ptCurrentPos.x += nPos;
					//	Check of the text found is outside the block.
					if (ptCurrentPos.y == ptBlockEnd.y && ptCurrentPos.x >= ptBlockEnd.x)
						break;

					*pptFoundPos = ptCurrentPos;
					return TRUE;
				}

				//	Go further, text was not found
				ptCurrentPos.x = 0;
				ptCurrentPos.y ++;
			}

			//	End of text reached
			if (! bWrapSearch)
				return FALSE;

			//	Start from the beginning
			bWrapSearch = FALSE;
			ptCurrentPos = ptBlockBegin;
		}
	}

	ASSERT(FALSE);		// Unreachable
	return FALSE;
}

void CCrystalTextView::OnEditFind() 
{
	CWinApp *pApp = AfxGetApp();
	ASSERT(pApp != NULL);

	CFindTextDlg dlg(this);
	if (m_bLastSearch)
	{
		//	Get the latest search parameters
		dlg.m_bMatchCase = (m_dwLastSearchFlags & FIND_MATCH_CASE) != 0;
		dlg.m_bWholeWord = (m_dwLastSearchFlags & FIND_WHOLE_WORD) != 0;
		dlg.m_nDirection = (m_dwLastSearchFlags & FIND_DIRECTION_UP) != 0 ? 0 : 1;
		if (m_pszLastFindWhat != NULL)
			dlg.m_sText = m_pszLastFindWhat;
	}
	else
	{
		//	Take search parameters from registry
		dlg.m_bMatchCase = pApp->GetProfileInt(REG_FIND_SUBKEY, REG_MATCH_CASE, FALSE);
		dlg.m_bWholeWord = pApp->GetProfileInt(REG_FIND_SUBKEY, REG_WHOLE_WORD, FALSE);
		dlg.m_nDirection = 1;		//	Search down
		dlg.m_sText = pApp->GetProfileString(REG_FIND_SUBKEY, REG_FIND_WHAT, _T(""));
	}

	//	Take the current selection, if any
	if (IsSelection())
	{
		CPoint ptSelStart, ptSelEnd;
		GetSelection(ptSelStart, ptSelEnd);		if (ptSelStart.y == ptSelEnd.y)
		{
			LPCTSTR pszChars = GetLineChars(ptSelStart.y);
			int nChars = ptSelEnd.x - ptSelStart.x;
			lstrcpyn(dlg.m_sText.GetBuffer(nChars + 1), pszChars + ptSelStart.x, nChars + 1);
			dlg.m_sText.ReleaseBuffer();
		}
	}

	//	Execute Find dialog
	dlg.m_ptCurrentPos = m_ptCursorPos;		//	Search from cursor position
	m_bShowInactiveSelection = TRUE;
	dlg.DoModal();
	m_bShowInactiveSelection = FALSE;

	//	Save search parameters for 'F3' command
	m_bLastSearch = TRUE;
	if (m_pszLastFindWhat != NULL)
		free(m_pszLastFindWhat);
#ifdef _UNICODE
	m_pszLastFindWhat = _wcsdup(dlg.m_sText);
#else
	m_pszLastFindWhat = strdup(dlg.m_sText);
#endif

	m_dwLastSearchFlags = 0;
	if (dlg.m_bMatchCase)
		m_dwLastSearchFlags |= FIND_MATCH_CASE;
	if (dlg.m_bWholeWord)
		m_dwLastSearchFlags |= FIND_WHOLE_WORD;
	if (dlg.m_nDirection == 0)
		m_dwLastSearchFlags |= FIND_DIRECTION_UP;

	//	Save search parameters to registry
	pApp->WriteProfileInt(REG_FIND_SUBKEY, REG_MATCH_CASE, dlg.m_bMatchCase);
	pApp->WriteProfileInt(REG_FIND_SUBKEY, REG_WHOLE_WORD, dlg.m_bWholeWord);
	pApp->WriteProfileString(REG_FIND_SUBKEY, REG_FIND_WHAT, dlg.m_sText);
}

void CCrystalTextView::OnEditRepeat() 
{
	if (m_bLastSearch)
	{
		CPoint ptFoundPos;
		if (! FindText(m_pszLastFindWhat, m_ptCursorPos, m_dwLastSearchFlags, TRUE, &ptFoundPos))
		{
			CString prompt;
			prompt.Format(IDS_EDIT_TEXT_NOT_FOUND, m_pszLastFindWhat);
			AfxMessageBox(prompt);
			return;
		}
		HighlightText(ptFoundPos, lstrlen(m_pszLastFindWhat));
		m_bMultipleSearch = TRUE;       // More search       
	}
}

void CCrystalTextView::OnUpdateEditRepeat(CCmdUI* pCmdUI) 
{
	pCmdUI->Enable(m_bLastSearch);
}

void CCrystalTextView::OnEditFindPrevious() 
{
	DWORD dwSaveSearchFlags = m_dwLastSearchFlags;
	if ((m_dwLastSearchFlags & FIND_DIRECTION_UP) != 0)
		m_dwLastSearchFlags &= ~FIND_DIRECTION_UP;
	else
		m_dwLastSearchFlags |= FIND_DIRECTION_UP;
	OnEditRepeat();
	m_dwLastSearchFlags = dwSaveSearchFlags;
}

void CCrystalTextView::OnUpdateEditFindPrevious(CCmdUI* pCmdUI) 
{
	pCmdUI->Enable(m_bLastSearch);
}

void CCrystalTextView::OnFilePageSetup()
{
	CWinApp *pApp = AfxGetApp();
	ASSERT(pApp != NULL);

	CPageSetupDialog dlg;
	dlg.m_psd.Flags &= ~PSD_INTHOUSANDTHSOFINCHES;
	dlg.m_psd.Flags |= PSD_INHUNDREDTHSOFMILLIMETERS | PSD_DISABLEORIENTATION | PSD_DISABLEPAPER;
	dlg.m_psd.rtMargin.left = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_LEFT, DEFAULT_PRINT_MARGIN);
	dlg.m_psd.rtMargin.right = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_RIGHT, DEFAULT_PRINT_MARGIN);
	dlg.m_psd.rtMargin.top = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_TOP, DEFAULT_PRINT_MARGIN);
	dlg.m_psd.rtMargin.bottom = pApp->GetProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_BOTTOM, DEFAULT_PRINT_MARGIN);
	if (dlg.DoModal() == IDOK)
	{
		pApp->WriteProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_LEFT, dlg.m_psd.rtMargin.left);
		pApp->WriteProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_RIGHT, dlg.m_psd.rtMargin.right);
		pApp->WriteProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_TOP, dlg.m_psd.rtMargin.top);
		pApp->WriteProfileInt(REG_PAGE_SUBKEY, REG_MARGIN_BOTTOM, dlg.m_psd.rtMargin.bottom);
	}
}

void CCrystalTextView::OnToggleBookmark()
{
	if (m_pTextBuffer != NULL)
	{
		DWORD dwFlags = GetLineFlags(m_ptCursorPos.y);
		DWORD dwMask  = LF_BOOKMARKS;
		m_pTextBuffer->SetLineFlag(m_ptCursorPos.y, dwMask, (dwFlags & dwMask) == 0, FALSE);
	}
	int nLine = m_pTextBuffer->GetLineWithFlag(LF_BOOKMARKS);
	if (nLine >= 0)
		m_bBookmarkExist = TRUE;
	else
		m_bBookmarkExist = FALSE;
}

void CCrystalTextView::OnNextBookmark()
{
	if (m_pTextBuffer != NULL)
	{
		int nLine = m_pTextBuffer->FindNextBookmarkLine(m_ptCursorPos.y);
		if (nLine >= 0)
		{
			CPoint pt(0, nLine);
			ASSERT_VALIDTEXTPOS(pt);
			SetCursorPos(pt);
			SetSelection(pt, pt);
			SetAnchor(pt);
			EnsureVisible(pt);
		}
	}
}

void CCrystalTextView::OnPrevBookmark()
{
	if (m_pTextBuffer != NULL)
	{
		int nLine = m_pTextBuffer->FindPrevBookmarkLine(m_ptCursorPos.y);
		if (nLine >= 0)
		{
			CPoint pt(0, nLine);
			ASSERT_VALIDTEXTPOS(pt);
			SetCursorPos(pt);
			SetSelection(pt, pt);
			SetAnchor(pt);
			EnsureVisible(pt);
		}
	}
}

void CCrystalTextView::OnClearAllBookmarks()
{
	if (m_pTextBuffer != NULL)
	{
		int nLineCount = GetLineCount();
		for (int I = 0; I < nLineCount; I ++)
		{
			if (m_pTextBuffer->GetLineFlags(I) & LF_BOOKMARKS)
				m_pTextBuffer->SetLineFlag(I, LF_BOOKMARKS, FALSE);
		}
		m_bBookmarkExist = FALSE;
	}							 
}

void CCrystalTextView::OnUpdateNextBookmark(CCmdUI* pCmdUI)
{
	pCmdUI->Enable(m_bBookmarkExist);
}

void CCrystalTextView::OnUpdatePrevBookmark(CCmdUI* pCmdUI)
{
	pCmdUI->Enable(m_bBookmarkExist);
}

void CCrystalTextView::OnUpdateClearAllBookmarks(CCmdUI* pCmdUI)
{
	pCmdUI->Enable(m_bBookmarkExist);
}

BOOL CCrystalTextView::GetViewTabs()
{
	return m_bViewTabs;
}

void CCrystalTextView::SetViewTabs(BOOL bViewTabs)
{
	if (bViewTabs != m_bViewTabs)
	{
		m_bViewTabs = bViewTabs;
		if (::IsWindow(m_hWnd))
			Invalidate();
	}
}

BOOL CCrystalTextView::GetSelectionMargin()
{
	return m_bSelMargin;
}

int CCrystalTextView::GetMarginWidth()
{
	return m_bSelMargin ? 20 : 1;
}

BOOL CCrystalTextView::GetSmoothScroll() const
{
	return m_bSmoothScroll;
}

void CCrystalTextView::SetSmoothScroll(BOOL bSmoothScroll)
{
	m_bSmoothScroll = bSmoothScroll;
}

//	[JRT]
BOOL CCrystalTextView::GetDisableDragAndDrop() const
{
	return m_bDisableDragAndDrop;
}

//	[JRT]
void CCrystalTextView::SetDisableDragAndDrop(BOOL bDDAD)
{
	m_bDisableDragAndDrop = bDDAD;
}