geomative/GeomativeStudio/cpp/Tools/floatedit.cpp

// floatedit.cpp : implementation file
//

#include "stdafx.h"
#include "geomative.h"
#include "floatedit.h"

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

/////////////////////////////////////////////////////////////////////////////
// CFloatEdit

CFloatEdit::CFloatEdit()
{
	m_iIntLimitLen = 4;
	m_iDecLimitLen = 2;

	m_bIsMinus = FALSE;
}

CFloatEdit::~CFloatEdit()
{
}


BEGIN_MESSAGE_MAP(CFloatEdit, CEdit)
	//{{AFX_MSG_MAP(CFloatEdit)
	ON_WM_CHAR()
	ON_CONTROL_REFLECT(EN_KILLFOCUS, OnKillfocus)
	ON_CONTROL_REFLECT(EN_SETFOCUS, OnSetfocus)
	ON_WM_KEYDOWN()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFloatEdit message handlers

void CFloatEdit::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	CString szText = _T("");
	int iLen = 0;
	int iIntLen = 0;
	int iDecLen = 0;

	int iStartChar = 0;
	int iEndChar = 0;

	int iMinus = 0;

	GetWindowText(szText);
	iLen = szText.GetLength();

	GetSel(iStartChar, iEndChar);

	if ((FALSE == m_bIsMinus) && ('-' == nChar))
	{
		nChar = 0;
	}

	if((nChar >= '0' && nChar <= '9' ) || ('.' == nChar) || ('-' == nChar))
	{
		iMinus = 0;

		if ((szText.Left(1) != _T("-")) && ((iStartChar == iEndChar) && (0 == iStartChar)) && ('-' == nChar))
		{
			szText.Insert(0, (TCHAR)nChar);
			SetWindowText(szText);
			SetSel(1, 1);
		}
		else
		{
			if ((szText.Left(1) == _T("-")) && ('-' == nChar))
			{
				return;
			}
		}

		if (szText.Find("-") == 0)
		{
			iMinus = 1;
		}

		if (szText.Find('.') < 0)
		{
			if ('.' == nChar)
			{
				if (iLen > 0)
				{
					szText = szText + '.';
					SetWindowText(szText);
					SetSel(iLen, ++iLen);									//依据C++参数传递顺序，先执行++iLen，此时iLen等于iLen+1
				}
			}
			else
			{
				if (iStartChar == iEndChar)
				{
					if (iLen < (m_iIntLimitLen + iMinus))
					{
						if (nChar != '-')
						{
							CEdit::OnChar(nChar, nRepCnt, nFlags);
						}
						
					}
				}
				else
				{
					CEdit::OnChar(nChar, nRepCnt, nFlags);
				}
			}
		}
		else
		{
			iIntLen = szText.Find('.') - iMinus;
			iDecLen = iLen - szText.Find('.') - 1;

			if ('.' != nChar)
			{
/*
				if ((iStartChar == iEndChar) && (iStartChar > iIntLen) && (iDecLen < m_iDecLimitLen))		//控制小数位长度
				{
					CEdit::OnChar(nChar, nRepCnt, nFlags);
				}

				if ((iStartChar == iEndChar) && (iStartChar <= iIntLen) && (iIntLen < m_iIntLimitLen))      //控制整数位长度
				{
					CEdit::OnChar(nChar, nRepCnt, nFlags);
				}
*/
				if (iStartChar == iEndChar)
				{
					if (iStartChar > iIntLen)
					{
						if (iDecLen < m_iDecLimitLen)														//控制小数位长度
						{
							CEdit::OnChar(nChar, nRepCnt, nFlags);
						}
					}
					else
					{
						if (iIntLen < (m_iIntLimitLen))														//控制整数位长度
						{
							CEdit::OnChar(nChar, nRepCnt, nFlags);
						}
					}
				}
				else
				{
					CEdit::OnChar(nChar, nRepCnt, nFlags);
				}

			}
		}
	}
	else if (0x0008 == nChar)									//VK_BACK == 0x0008
	{
		if (szText.Find('.') >= 0)
		{
			iIntLen = szText.Find('.');
			iDecLen = iLen - szText.Find('.') - 1;

			if ((iIntLen + 1) == iStartChar)
			{
				szText = szText.Left(iIntLen);
				SetWindowText(szText);

				iLen = szText.GetLength();
				SetSel(iLen, ++iLen);
				return;
			}
		}
		CEdit::OnChar(nChar, nRepCnt, nFlags);
	}
}

void CFloatEdit::OnKillfocus() 
{
	// TODO: Add your control notification handler code here
	CString szText = _T("");
	int iLen = (int)VAL_ZERO;
	int iIntLen = (int)VAL_ZERO;

	GetWindowText(szText);
	
	if ((szText.GetLength() > (int)VAL_ZERO) && (float)VAL_ZERO == atof(szText))
	{
		szText = _T("0");
//		SetWindowText(szText);
//		return;
	}
	else
	{
		szText.TrimLeft('0');
//		szText.TrimRight('0');
	}

	iLen = szText.GetLength();

	if ((iLen - 1) == szText.Find('.'))
	{
		szText.Delete(--iLen, 1);
	}

	iIntLen = szText.Find('.');
	if (0 == iIntLen)
	{
		szText = '0' + szText;
		SetSel(iLen, ++iLen);
	}
	SetWindowText(szText);
}

void CFloatEdit::SetIntLimitLen(int iIntLimitLen)
{
	this->m_iIntLimitLen = iIntLimitLen;
}

void CFloatEdit::SetDecLimitLen(int iDecLimitLen)
{
	this->m_iDecLimitLen = iDecLimitLen;
}

void CFloatEdit::SetIsMinus(BOOL bIsMinus)
{
	this->m_bIsMinus = bIsMinus;
}

void CFloatEdit::OnSetfocus() 
{
	// TODO: Add your control notification handler code here
	CString szText = _T("");
	int iLen = 0;

	GetWindowText(szText);
	iLen = szText.GetLength();
	SetSel(iLen, ++iLen);
}

void CFloatEdit::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	
	CString szText = _T("");
	int iLen = 0;
	int iIntLen = 0;
	int iDecLen = 0;

	int iStartChar = 0;
	int iEndChar = 0;

	GetWindowText(szText);
	iLen = szText.GetLength();

	GetSel(iStartChar, iEndChar);
	if (0x002E == nChar)					//VK_DELETE == 0x002E
	{
		if (szText.Find('.') >= 0)
		{
			iIntLen = szText.Find('.');
			iDecLen = iLen - szText.Find('.') - 1;

			if (iIntLen == iStartChar)
			{
				szText = szText.Left(iIntLen);
				SetWindowText(szText);

				iLen = szText.GetLength();
				SetSel(iLen, ++iLen);
				return;
			}
		}

	}
	CEdit::OnKeyDown(nChar, nRepCnt, nFlags);
}