[MFC] FloatEdit

pragma once

// ListBox

class FloatEdit : public CEdit
{
DECLARE_DYNAMIC(FloatEdit)

public:
FloatEdit();
virtual ~FloatEdit();

protected:
DECLARE_MESSAGE_MAP()
public:
virtual BOOL PreTranslateMessage(MSG* pMsg);
};

// ListBox.cpp: 实现文件
//

include "pch.h"

include "util/FloatEdit.h"

// ListBox

IMPLEMENT_DYNAMIC(FloatEdit, CEdit)

FloatEdit::FloatEdit()
{
}

FloatEdit::~FloatEdit()
{
}

BEGIN_MESSAGE_MAP(FloatEdit, CEdit)
END_MESSAGE_MAP()

// ListBox 消息处理程序

BOOL FloatEdit::PreTranslateMessage(MSG* pMsg)
{
// TODO: 在此添加专用代码和/或调用基类

if (pMsg->message == WM_KEYDOWN)
{
    bool isHavePoint = false;
    wchar_t str[32];
    GetWindowTextW(str, 32);
    int length = wcslen(str);
    for (int i = 0; i < length; ++i)
    {
        if (str[i] == 46)
        {
            isHavePoint = true;
        }
    }

    if ((pMsg->wParam == 110) || (pMsg->wParam == 190))         // 小数点
    {
        if (isHavePoint)
            return TRUE;
    }
    else if ((pMsg->wParam == 8) || (pMsg->wParam == 46))       // 退格和删除
    {
        return FALSE;
    }
    else if ((pMsg->wParam >= 48) || (pMsg->wParam <= 57))      // 字符0 至 字符9
    {
        return FALSE;
    }
    else if ((pMsg->wParam >= 96) || (pMsg->wParam <= 105))      // 字符0 至 字符9
    {
        return FALSE;
    }
}

return CEdit::PreTranslateMessage(pMsg);

}