numfrm.cpp

xiazai

//_________________________________________________________________
//
// NumFrm.cpp
// 
// Written by Eugeny Berezkin, 
// E-mail: [e-mail]
//_________________________________________________________________
//

#include "stdafx.h"

#include "Afxtempl.h"

#include "NumFrm.h"
#include "colors.h"

#include <math.h>

#ifdef _UNICODE
#include <afxpriv.h>        // For A2W & W2A conversions
#endif

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

// Format characters definition
#define FRM_OPEN_BRACKET	_T('[')
#define FRM_CLOSE_BRACKET	_T(']')
#define FRM_PURGE_SIGN		_T('~')
#define FRM_DEC_POINT	    _T('.')
#define FRM_SECTION_DELIM	_T(';')

#define FRM_DIGIT           _T('#')
#define FRM_DIGIT_ZERO      _T('0')
#define FRM_DIGIT_BALNKS    _T('?')
#define FRM_THOUSAND_SEP    _T(',')
#define FRM_PERSENT			_T('%')

#define OUTCHAR_BLANK          _T(' ')
#define INTL_GROUP_DIGIT_LEN   3
#define INTL_NEGATIVE_STR      _T("-")

//_________________________________________________________________
//
// CFrmCondition private helper class definition
//
class CFrmCondition
{
public:
	CFrmCondition();
	CFrmCondition(int nSign, double nLimit);
	BOOL    Satisfied(double nValue) const;
private:
	double m_nLimit;
	int    m_nSign;
};

typedef CArray<CFrmCondition, CFrmCondition&> CFrmConditionsArray;

//_________________________________________________________________
//
// CNumFrmNode private helper class defenition
//
class CNumFrmNode
{
public:
    CNumFrmNode();

    LPCTSTR PrintSimpleNumFormat(double nOut, int nForceDec) const;
    LPCTSTR PrintNumFormat(double nVal, CDC* pDC, LPRECT lpRect, UINT nFormat, int nForceDec, BOOL bFull) const;
    LPCTSTR PrintNumFormatETO(double nVal, CDC* pDC, int x, int y, UINT nOptions, LPCRECT lpRect, int nForceDec, BOOL bFull) const;

	BOOL Satisfied(double nValue) const;
	BOOL IsConditional() const;

    BOOL SetFormat(const CString& sFormat);
	void SetCondition(int nSign, double nLimit);

    BOOL IsEmpty() const { return m_sFormat.IsEmpty(); };
	void Reset();

private:
	BOOL GobbleText1(CString& sFrm);
	void ProcessPower(LPCTSTR pBuff);
	static void ProcessNumFlags(LPCTSTR pBuff, int& nFlags);
	BOOL GobbleInt(CString& sFrm);
	BOOL ExtractColorOrCondition(CString& sFmt);
	BOOL ExtractPercent(CString& sFmt);
	BOOL ExtractPurgeSign(CString& sFmt);

	BOOL RecognizedAsColor(const CString& sItem);
	BOOL RecognizedAsCondition(const CString& sItem);

	void BeforePrint(double nVal, CDC* pDC, LPCRECT lpRect, int nForceDec, BOOL bFull) const;
	void AfterPrint(CDC* pDC, LPCRECT lpRect) const;

    static BOOL WinFormat(LPTSTR szOutput, int nOutBufferLen, double nNumb, int nDec, 
                          BOOL bThousandSepareted, BOOL bIntZeroObligated);

    enum EDigitFlags
    {
        DF_DIGIT        = 1,
        DF_DIGIT_ZERO   = 2,
        DF_DIGIT_BALNKS = 4,
        DF_THOUSANDS    = 8,
    };

    enum ECommonFlags
    {
        CF_USE_COLOR    = 1,    
        CF_USE_POWER    = 2,
        CF_USE_PERCENT  = 4,
        CF_PURGE_SIGN   = 8,
    };

    CString     m_sFormat;
    double      m_nPowered;
    int         m_nDec;
    int         m_nLeftFlags;
    int         m_nRightFlags;
    int         m_nCommonFlags;
    COLORREF    m_Color;

    CString    m_sText1;
    CString    m_sText2;

	CFrmConditionsArray m_arConditions;

    static TCHAR m_pTmpBuffer[MAX_NFORMAT_LEN + 1];
    static BOOL  m_bLocaleInitialized;
    static CString m_sThousand;
    static CString m_sDecimal;
};

//_________________________________________________________________
//
TCHAR   CNumFrmNode::m_pTmpBuffer[MAX_NFORMAT_LEN + 1];
BOOL    CNumFrmNode::m_bLocaleInitialized = FALSE;
CString CNumFrmNode::m_sThousand;
CString CNumFrmNode::m_sDecimal;

//_________________________________________________________________
//
// Enumeration of comparison operations
// and array of corresponding strings
//
enum ESigns
{
    SGN_EQUAL,
    SGN_NOEQUAL,
    SGN_LESS,
    SGN_GREATER,
    SGN_LESS_OR_EQUAL_1,
    SGN_LESS_OR_EQUAL_2,
    SGN_GREATER_OR_EQUAL_1,
    SGN_GREATER_OR_EQUAL_2,
};

static LPCTSTR szComparisonSigns[] = 
{
	_T("="),
	_T("#"),
	_T("<"),
	_T(">"),
	_T("<="),
	_T("=<"),
	_T(">="),
	_T("=>"),
	NULL,
};

//_________________________________________________________________
//
// Helper functions
//
inline static BOOL NonZero(double nValue)
{
    const double nMinBound = -1.0e-100;
    const double nMaxBound = 1.0e-100;
    return nValue > nMaxBound || nValue < nMinBound;
}

static CString Extract(CString& str, int nStart, int nFinish)
{
    CString sRet;
    if(nStart <= nFinish && nStart < str.GetLength())
    {
        sRet = str.Mid(nStart, nFinish - nStart + 1);
        str  = str.Mid(0, nStart) + str.Mid(nFinish + 1);
    }
    return sRet;
}

static CString GetLine(CString& str, TCHAR pchDelim)
{
    CString sRetStr;
    int     pos;
    pos = str.Find(pchDelim);
    if(pos != -1)
    {
        sRetStr = str.Left(pos);
        str = str.Mid(pos + 1);
    }
    else
    {
        sRetStr = str;
        str.Empty();
    }
    return sRetStr;
}

//_________________________________________________________________
//
// Constructor without initialization 
// is used only in CArray::SetSize() 
// (CArray::ConstructElements call).
//
CFrmCondition::CFrmCondition()
{
}

CFrmCondition::CFrmCondition(int nSign, double nLimit)
{
	m_nSign  = nSign;
	m_nLimit = nLimit;
}

BOOL CFrmCondition::Satisfied(double nValue) const
{
	BOOL bResult;
	switch(m_nSign)
	{
		case SGN_EQUAL:
			bResult = !NonZero(m_nLimit - nValue);
			break;
		case SGN_NOEQUAL:
			bResult = NonZero(m_nLimit - nValue);
			break;
		case SGN_LESS:
			bResult = nValue < m_nLimit && NonZero(m_nLimit - nValue);
			break;
		case SGN_GREATER:
			bResult = nValue > m_nLimit && NonZero(m_nLimit - nValue);
			break;
		case SGN_LESS_OR_EQUAL_1:
		case SGN_LESS_OR_EQUAL_2:
			bResult = nValue < m_nLimit || !NonZero(m_nLimit - nValue);
			break;
		case SGN_GREATER_OR_EQUAL_1:
		case SGN_GREATER_OR_EQUAL_2:
			bResult = nValue > m_nLimit || !NonZero(m_nLimit - nValue);
			break;
		default:
			ASSERT(FALSE);
	}
	return bResult;
}

//_________________________________________________________________
//
CNumFrmNode::CNumFrmNode()
{
    Reset();
}

BOOL CNumFrmNode::SetFormat(const CString& sFormat)
{
    if(sFormat != m_sFormat)
    {
        Reset();

        if( sFormat.IsEmpty() )
            return TRUE;

        if( sFormat.GetLength() > MAX_NFORMAT_LEN )
            return FALSE;

        CString sFrm = sFormat;

        if(!ExtractColorOrCondition(sFrm))  return FALSE;
        if(!ExtractPercent(sFrm))			return FALSE;
        if(!ExtractPurgeSign(sFrm))			return FALSE;

        if(!GobbleText1(sFrm))  return FALSE;
        if(!GobbleInt(sFrm))    return FALSE;

        m_sText2 = sFrm;

        m_sFormat = sFormat;
    }
    return TRUE;
}

void CNumFrmNode::Reset()
{
    m_sFormat.Empty();
    m_nPowered       = 1.0;
    m_nDec           = 0;
    m_nLeftFlags     = 0;
    m_nRightFlags    = 0;
    m_nCommonFlags   = 0;
    m_Color          = Black;
}

BOOL CNumFrmNode::Satisfied(double nValue) const
{
    if(m_arConditions.GetSize())
	{
		for(int i = 0; i < m_arConditions.GetSize(); i++)
		{
            if(!m_arConditions[i].Satisfied(nValue))
				return FALSE;
		}
	}
	return TRUE;
}

void CNumFrmNode::SetCondition(int nSign, double nLimit)
{
	CFrmCondition cond(nSign, nLimit);
	m_arConditions.Add(cond);
}

BOOL CNumFrmNode::IsConditional() const
{
	return m_arConditions.GetSize() ? TRUE : FALSE;
}

BOOL CNumFrmNode::ExtractColorOrCondition(CString& sFmt)
{
    int  pos_open;
    int  pos_close;
	CString sItem;
    while( (pos_open = sFmt.Find(FRM_OPEN_BRACKET))  != -1 && 
           (pos_close = sFmt.Find(FRM_CLOSE_BRACKET)) != -1 && 
            pos_open < pos_close                 )
	{
	    sItem = Extract(sFmt, pos_open, pos_close);
		if(!RecognizedAsColor(sItem))
			RecognizedAsCondition(sItem);
	}
	return TRUE;
}

BOOL CNumFrmNode::RecognizedAsColor(const CString& sItem)
{
    static struct FmtColorMap 
    {
        LPCTSTR      pColorName;
        COLORREF    cColor;
    } pColorMap[] =
    {
        { _T("[Green]"),   Green   },
        { _T("[Red]"),     Red     },
        { _T("[Blue]"),    Blue    },
        { _T("[Magenta]"), Magenta },
        { _T("[Cyan]"),    Cyan    },
        { _T("[Yellow]"),  Yellow  },
        { _T("[White]"),   White   },
        { _T("[Black]"),   Black   },
        { NULL ,          0     },
    };

    FmtColorMap* pMap = pColorMap;
    while(pMap->pColorName)
    {
        if(sItem.CompareNoCase(pMap->pColorName) == 0)
        {
            m_nCommonFlags |= CF_USE_COLOR;
            m_Color = pMap->cColor;
            return TRUE;
        }
        pMap++;
    }
    return FALSE;
}

BOOL CNumFrmNode::RecognizedAsCondition(const CString& sItem)
{
	CString	sTmp;	
	CString	sSign;	
	int		i;

	sTmp = sItem.Mid(1, sItem.GetLength() - 2);

	for(i = 0; i < sTmp.GetLength() && !(_istdigit(sTmp[i])) && sTmp[i] != _T('-'); i++)
		;

	if(i > 0 && i < sTmp.GetLength())
	{
		sSign = sTmp.Mid(0, i);
		sSign.TrimLeft();
		sSign.TrimRight();

		// look
		for(int j = 0; szComparisonSigns[j] != NULL; j++)
		{
			if(szComparisonSigns[j] == sSign)
			{
                double nValue;
#ifdef _UNICODE
                USES_CONVERSION;
                LPCSTR  pAStr;
                LPCTSTR pWStr = ((LPCTSTR)sTmp) + i;
                pAStr = W2CA(pWStr);
                nValue = atof(pAStr);
#else
                nValue = atof(((LPCTSTR)sTmp) + i);
#endif

				CFrmCondition cond(j, nValue);
				m_arConditions.Add(cond);
				return TRUE;
			}
		}
	}
	return FALSE;
}

BOOL CNumFrmNode::ExtractPercent(CString& sFmt)
{
    int pos = sFmt.Find(FRM_PERSENT);
    if(pos != -1)
    {
        Extract(sFmt, pos, pos);
        m_nCommonFlags |= CF_USE_PERCENT;
        m_nPowered = m_nPowered * 100;
    }
    return TRUE;
}

BOOL CNumFrmNode::ExtractPurgeSign(CString& sFmt)
{
    int pos = sFmt.Find(FRM_PURGE_SIGN);
    if(pos != -1)
    {
        Extract(sFmt, pos, pos);
        m_nCommonFlags |= CF_PURGE_SIGN;
    }
    return TRUE;
}

BOOL CNumFrmNode::GobbleText1(CString& sFrm)
{
    // Declaration of format string for sscanf
    // _T("%[^#0?,.]")
    static const TCHAR szSScanfFormat[] = 
    {   _T('%'), _T('['), _T('^'), 
        FRM_DIGIT, FRM_DIGIT_ZERO, FRM_DIGIT_BALNKS,
        FRM_THOUSAND_SEP, FRM_DEC_POINT, 
        _T(']'), 0 };

    m_pTmpBuffer[0] = 0;
    _stscanf(sFrm, szSScanfFormat, m_pTmpBuffer);
    m_sText1 = m_pTmpBuffer;
    if(m_sText1.GetLength())
        sFrm = sFrm.Mid(m_sText1.GetLength());
    return TRUE;
}

BOOL CNumFrmNode::GobbleInt(CString& sFrm)
{
    // Declaration of format string for sscanf  1
    // _T("%[#0?,]")
    static const TCHAR szSScanfFormat1[] = 
    {   _T('%'), _T('['), 
        FRM_DIGIT, FRM_DIGIT_ZERO, FRM_DIGIT_BALNKS,
        FRM_THOUSAND_SEP,
        _T(']'), 0 };

    // Declaration of format string for sscanf  2
    // _T("%[#0?]")
    static const TCHAR szSScanfFormat2[] = 
    {   _T('%'), _T('['),
        FRM_DIGIT, FRM_DIGIT_ZERO, FRM_DIGIT_BALNKS,
        _T(']'), 0 };

    // Declaration of format string for sscanf  3
    // _T("%[,]")
    static const TCHAR szSScanfFormat3[] = 
    {   _T('%'), _T('['),