editfloat.cpp

来自「3D reconstruction, medical image process」· C++ 代码 · 共 205 行

// EditFloat.cpp : implementation file
//

#include "stdafx.h"
#include "fusion.h"
#include "EditFloat.h"

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

/////////////////////////////////////////////////////////////////////////////
// RxEditFloat

RxEditFloat::RxEditFloat()
{
	m_nDecimalPoint	= 2;

	m_fRangeMin		= 0.0f;
	m_fRangeMax		= 1.0f;
}

RxEditFloat::~RxEditFloat()
{
}


BEGIN_MESSAGE_MAP(RxEditFloat, CEdit)
	//{{AFX_MSG_MAP(RxEditFloat)
	ON_WM_CHAR()
	ON_WM_MOUSEWHEEL()
	ON_WM_KILLFOCUS()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// RxEditFloat message handlers

BOOL RxEditFloat::PreTranslateMessage(MSG* pMsg) 
{
	if(pMsg->message == WM_KEYDOWN && pMsg->wParam == VK_RETURN)
	{
		ValidateEdit();
		SendMessageToOwner();
		return TRUE;
	}
	
	return CEdit::PreTranslateMessage(pMsg);
}

void RxEditFloat::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	CString		strHolder;
	strHolder = _T("0123456789-.\b");

	if(strHolder.Find(nChar) < 0)
		return;
	
	CEdit::OnChar(nChar, nRepCnt, nFlags);
}

BOOL RxEditFloat::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt) 
{
	if(zDelta >= 0)
		IncreaseEdit();
	else
		DecreaseEdit();

	return CEdit::OnMouseWheel(nFlags, zDelta, pt);
}

void RxEditFloat::OnKillFocus(CWnd* pNewWnd) 
{
	CEdit::OnKillFocus(pNewWnd);
	
	ValidateEdit();
	SendMessageToOwner();	
}

/////////////////////////////////////////////////////////////////////////////

void RxEditFloat::SendMessageToOwner()
{
	NMED_FLOAT		nmed;
	nmed.hdr.hwndFrom	= m_hWnd;
	nmed.hdr.idFrom		= GetDlgCtrlID();
	nmed.hdr.code		= EN_CHANGED_FLOAT;
	nmed.fEdit			= GetEdit();

    CWnd* pOwner = GetOwner();
    if (pOwner)
        pOwner->SendMessage(WM_NOTIFY, nmed.hdr.idFrom, (LPARAM)&nmed);
}

void RxEditFloat::ValidateEdit()
{
	float		fValue = GetEdit();

	if(fValue < m_fRangeMin)	fValue = m_fRangeMin;
	if(fValue > m_fRangeMax)	fValue = m_fRangeMax;

	CString		strWindow, strFormat;
	strFormat.Format(_T("%d"), m_nDecimalPoint);
	strFormat = _T("%.") + strFormat + _T("f"); 
	strWindow.Format(strFormat, fValue);

	SetWindowText(strWindow);
	UpdateWindow();
}

#include <math.h>

void RxEditFloat::IncreaseEdit(int nValue)
{
	float	fStep = (float)nValue / (float)pow(10, m_nDecimalPoint);

	float	fOldValue, fNewValue;
	fOldValue = GetEdit();
	SetEdit(fOldValue + fStep);
	fNewValue = GetEdit();
	if(fOldValue != fNewValue)
		SendMessageToOwner();
}

void RxEditFloat::DecreaseEdit(int nValue)
{
	float	fStep = (float)nValue / (float)pow(10, m_nDecimalPoint);

	float	fOldValue, fNewValue;
	fOldValue = GetEdit();
	SetEdit(fOldValue - fStep);
	fNewValue = GetEdit();
	if(fOldValue != fNewValue)
		SendMessageToOwner();
}

/////////////////////////////////////////////////////////////////////////////

void RxEditFloat::SetDecimalPoint(UINT nDecimalPoint)
{
	m_nDecimalPoint = nDecimalPoint;
}

UINT RxEditFloat::GetDecimalPoint()
{
	return m_nDecimalPoint;
}

void RxEditFloat::SetRange(float fRangeMin, float fRangeMax, UINT nMask)
{
	float	fValue = GetEdit();

	if(nMask & EMASK_MIN)
	{
		m_fRangeMin = fRangeMin;
		if(fValue < fRangeMin)		SetEdit(fRangeMin);
	}
	if(nMask & EMASK_MAX)
	{
		m_fRangeMax = fRangeMax;
		if(fValue > fRangeMax)		SetEdit(fRangeMax);
	}
}

void RxEditFloat::GetRange(float &fRangeMin, float &fRangeMax)
{
	fRangeMin = m_fRangeMin;
	fRangeMax = m_fRangeMax;
}

void RxEditFloat::SetEdit(float fValue)
{
	float	fOldValue = GetEdit();
	if(fOldValue == fValue)
		return;

	if(fValue < m_fRangeMin)	fValue = m_fRangeMin;
	if(fValue > m_fRangeMax)	fValue = m_fRangeMax;

	CString		strWindow, strFormat;
	strFormat.Format(_T("%d"), m_nDecimalPoint);
	strFormat = _T("%.") + strFormat + _T("f"); 
	strWindow.Format(strFormat, fValue);

	SetWindowText(strWindow);
	UpdateWindow();
}

float RxEditFloat::GetEdit()
{
	USES_CONVERSION;
	float		fReturn;

	CString		strWindow;
	GetWindowText(strWindow);
	if(strWindow.IsEmpty())
		fReturn = -1.0f;
	else
		fReturn = (float)atof(T2A(strWindow));

	return fReturn;
}