ddxm.cpp

mtext,编辑器,支持潜入对象

// ddxm.cpp : implementation file
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.

#include "stdafx.h"
#include "ddxm.h"
#include "resource.h"
CMTextUnit CMTextDDXM::m_units[7] =
{
	//  TPU,    SmallDiv,   MedDiv, LargeDiv,   MinMove,    szAbbrev,           bSpace
		CMTextUnit(568,  142,        284,    568,        142,        IDS_CM_ABBREV,   TRUE),//centimeters
		CMTextUnit(1440, 180,        720,    1440,       90,         IDS_CM_ABBREV,   FALSE),//inches
		CMTextUnit(20,   120,        720,    720,        100,        IDS_CM_ABBREV,   TRUE),//points
		CMTextUnit(240,  240,        1440,   1440,       120,        IDS_CM_ABBREV,   TRUE),//picas
		CMTextUnit(1440, 180,        720,    1440,       90,         IDS_CM_ABBREV,   FALSE),//in
		CMTextUnit(1440, 180,        720,    1440,       90,         IDS_CM_ABBREV,   FALSE),//inch
		CMTextUnit(1440, 180,        720,    1440,       90,         IDS_CM_ABBREV,   FALSE)//inches
};
int CMTextDDXM::m_nUnits=0;
const int CMTextDDXM::m_nNumUnits = 7;
double CMTextDDXM::m_FontSizeScale=1.0;
// this routine prints a floatingpoint number with 2 digits after the decimal
void CMTextDDXM::DDX_Twips(CDataExchange* pDX, int nIDC, int& value)
{
	HWND hWndCtrl = pDX->PrepareEditCtrl(nIDC);
	TCHAR szT[64];
	if (pDX->m_bSaveAndValidate)
	{  
		::GetWindowText(hWndCtrl, szT, sizeof(szT));
		
		if (szT[0] != NULL) // not empty
		{	
			if (!ParseMeasurement(szT, value))
			{
				AfxMessageBox(IDS_INVALID_MEASUREMENT,MB_OK|MB_ICONINFORMATION);
				pDX->Fail();            // throws exception
			}
			PrintTwips(szT, value, 2);
			ParseMeasurement(szT, value);
		}
		else // empty
			value = INT_MAX;
	}
	else
	{
		// convert from twips to default units
		if (value != INT_MAX)
		{
			PrintTwips(szT, value, 2);
			SetWindowText(hWndCtrl, szT);
		}
	}
}

void CMTextDDXM::DDV_MinMaxTwips(CDataExchange* pDX, int value, int minVal, int maxVal)
{   
		ASSERT(minVal <= maxVal);
	if (value < minVal || value > maxVal)
	{
		// "The measurement must be between %1 and %2."
		if (!pDX->m_bSaveAndValidate)
		{
			TRACE0("Warning: initial dialog data is out of range.\n");
			return;     // don't stop now
		}
		TCHAR szMin[32];
		TCHAR szMax[32];
		PrintTwips(szMin, minVal, 2);
		PrintTwips(szMax, maxVal, 2);

	
		CString prompt;
		AfxFormatString2(prompt, IDS_MEASUREMENT_RANGE, szMin, szMax);
		AfxMessageBox(prompt, MB_ICONEXCLAMATION, AFX_IDS_APP_TITLE);
		prompt.Empty(); // exception prep
		pDX->Fail();
	}
}
BOOL CMTextDDXM::ParseMeasurement(LPTSTR buf, int& lVal)
{
	TCHAR* pch;
	if (buf[0] == NULL)
		return FALSE;
	float f = (float)_tcstod(buf,&pch);

	// eat white space, if any
	while (isspace(*pch))
		pch++;

	if (pch[0] == NULL) // default
	{
		lVal = (f < 0.f) ? (int)(f*GetTPU()-0.5f) : (int)(f*GetTPU()+0.5f);
		return TRUE;
	}
	for (int i=0;i<m_nNumUnits;i++)
	{
		if (lstrcmpi(pch, GetAbbrev(i)) == 0)
		{
			lVal = (f < 0.f) ? (int)(f*GetTPU(i)-0.5f) : (int)(f*GetTPU(i)+0.5f);
			return TRUE;
		}
	}
	return FALSE;
}

int CMTextDDXM::GetUnits() {return CMTextDDXM::m_nUnits;}
int CMTextDDXM::GetTPU() { return GetTPU(CMTextDDXM::m_nUnits);}
int CMTextDDXM::GetTPU(int n) { return CMTextDDXM::m_units[n].m_nTPU;}
LPCTSTR CMTextDDXM::GetAbbrev() { return CMTextDDXM::m_units[m_nUnits].m_strAbbrev;}
LPCTSTR CMTextDDXM::GetAbbrev(int n) { return CMTextDDXM::m_units[n].m_strAbbrev;}
const CMTextUnit& CMTextDDXM::GetUnit() {return CMTextDDXM::m_units[m_nUnits];}
BOOL CMTextDDXM::Initial()
{

			for (int i=0;i<m_nNumUnits;i++)
				CMTextDDXM::m_units[i].m_strAbbrev.LoadString(CMTextDDXM::m_units[i].m_nAbbrevID);
		
	return TRUE;

}
void CMTextDDXM::PrintTwips(TCHAR* buf, int nValue, int nDec)
{
	ASSERT(nDec == 2);
	int div = GetTPU();
	int lval = nValue;
	BOOL bNeg = FALSE;
	
	int* pVal = new int[nDec+1];
	
	if (lval < 0)
	{
		bNeg = TRUE;
		lval = -lval;
	}
	
	for (int i=0;i<=nDec;i++)
	{
		pVal[i] = lval/div; //integer number
		lval -= pVal[i]*div;
		lval *= 10;
	}
	i--;
	if (lval >= div/2)
		pVal[i]++;
	
	while ((pVal[i] == 10) && (i != 0))
	{
		pVal[i] = 0;
		pVal[--i]++;
	}
	
	while (nDec && pVal[nDec] == 0)
		nDec--;
	
	_stprintf(buf, _T("%.*f"), nDec, (float)nValue/(float)div);
	
//	if (CDDXM::m_units[m_nUnits].m_bSpaceAbbrev)
//		lstrcat(buf, _T(" "));
//	lstrcat(buf, GetAbbrev());
	delete []pVal;
}

const CMTextUnit& CMTextUnit::operator=(const CMTextUnit& unit)
{
	m_nTPU = unit.m_nTPU;
	m_nSmallDiv = unit.m_nSmallDiv;
	m_nMediumDiv = unit.m_nMediumDiv;
	m_nLargeDiv = unit.m_nLargeDiv;
	m_nMinMove = unit.m_nMinMove;
	m_nAbbrevID = unit.m_nAbbrevID;
	m_bSpaceAbbrev = unit.m_bSpaceAbbrev;
	m_strAbbrev = unit.m_strAbbrev;
	return *this;
}

CMTextUnit::CMTextUnit(int nTPU, int nSmallDiv, int nMediumDiv, int nLargeDiv,
			 int nMinMove, UINT nAbbrevID, BOOL bSpaceAbbrev)
{
	m_nTPU = nTPU;
	m_nSmallDiv = nSmallDiv;
	m_nMediumDiv = nMediumDiv;
	m_nLargeDiv = nLargeDiv;
	m_nMinMove = nMinMove;
	m_nAbbrevID = nAbbrevID;
	m_bSpaceAbbrev = bSpaceAbbrev;
}