voltagemeterdlg.cpp

基于串口的数字电压表上位机

// VoltageMeterDlg.cpp : implementation file
//

#include "stdafx.h"
#include "VoltageMeter.h"
#include "VoltageMeterDlg.h"
#include "Splash.h"

#define	CLOSE 0
#define	OPEN  1

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CVoltageMeterDlg dialog

CVoltageMeterDlg::CVoltageMeterDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CVoltageMeterDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CVoltageMeterDlg)
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CVoltageMeterDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CVoltageMeterDlg)
	DDX_Control(pDX, IDC_MSCOMM1, m_CtrlComm);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CVoltageMeterDlg, CDialog)
	//{{AFX_MSG_MAP(CVoltageMeterDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_CREATE()
	ON_BN_CLICKED(IDC_OPEN, OnOpenPort)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CVoltageMeterDlg message handlers

BOOL CVoltageMeterDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.
	//设置字体
	m_font.CreatePointFont(230,"黑体");
	CEdit *pEdit1 = (CEdit*)GetDlgItem(IDC_EDIT_RX1);
	CEdit *pEdit2 = (CEdit*)GetDlgItem(IDC_EDIT_RX2);
	pEdit1->SetFont(&m_font);
	pEdit2->SetFont(&m_font);
	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
//	SetDlgItemText(IDC_EDIT_RX1,"0.00 V");
//	SetDlgItemText(IDC_EDIT_RX2,"0.00 V");
	((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->AddString("COM1");
	((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->AddString("COM2");
	((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->AddString("COM3");
	((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->AddString("COM4");
	((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->SetCurSel(0);
	PortState = CLOSE;
	m_timeout = TRUE;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CVoltageMeterDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CVoltageMeterDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CVoltageMeterDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

int CVoltageMeterDlg::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CDialog::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	// TODO: Add your specialized creation code here
	CSplashWnd::ShowSplashScreen(this);
	return 0;
}

void CVoltageMeterDlg::OnOpenPort() 
{
	// TODO: Add your control notification handler code here
	if(PortState == CLOSE)			//端口未打开 则打开端口
	{
		int index;
		index = ((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->GetCurSel();  //获取串口号索引值
		if(m_CtrlComm.GetPortOpen())
		{
			m_CtrlComm.SetPortOpen(FALSE);
		}
		m_CtrlComm.SetCommPort(index+1);		    //设置端口号			
		m_CtrlComm.SetInBufferSize(32);				//设置收发缓冲区大小
		m_CtrlComm.SetOutBufferSize(16);
		if(!m_CtrlComm.GetPortOpen())
		{
			m_CtrlComm.SetPortOpen(TRUE);			//成功打开串口
			m_CtrlComm.SetInputMode(1);
			m_CtrlComm.SetSettings("4800,n,8,1");	//通信格式
			m_CtrlComm.SetRThreshold(1);			//缓冲区中有多于或等于1个字符引发事件
			m_CtrlComm.SetInputLen(0);				//设置当前接收区数据长度为0
			m_CtrlComm.GetInput();					//先预读缓冲区以清除残留数据
			SetDlgItemText(IDC_OPEN,"关闭端口");
			((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->EnableWindow(FALSE);	//组合框disabled
			SetTimer(1,150,NULL);					//发送周期150毫秒
			PortState = OPEN;
			m_timeout = TRUE;
			
		}
		else
		{
			AfxMessageBox("无法打开该通信端口");
		}	
	}
	else
	{
		if(m_CtrlComm.GetPortOpen())
		{
			m_CtrlComm.SetPortOpen(FALSE);
		}
		KillTimer(1);	//取消定时
		KillTimer(3);
//		m_timeout = FALSE;
		((CComboBox*)GetDlgItem(IDC_COMBOX_COMSEL))->EnableWindow(TRUE);
		SetDlgItemText(IDC_OPEN,"打开端口");
		SetDlgItemText(IDC_EDIT_RX1," ");
		SetDlgItemText(IDC_EDIT_RX2," ");
		PortState = CLOSE;
	}

}


void CVoltageMeterDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default	
	if(nIDEvent == 1)
	{
		m_CtrlComm.SetOutput(COleVariant("A"));	//发送数据
		if(m_timeout == TRUE)
		{
			SetTimer(3,500,NULL);			//设置超时定时器
			m_timeout = FALSE;
		}
	}
	if(nIDEvent == 3)						//连接超时
	{
		SetDlgItemText(IDC_EDIT_RX1,"----");
		SetDlgItemText(IDC_EDIT_RX2,"----");
		m_timeout = TRUE;
		KillTimer(3);
	}
	CDialog::OnTimer(nIDEvent);
}



BEGIN_EVENTSINK_MAP(CVoltageMeterDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CVoltageMeterDlg)
	ON_EVENT(CVoltageMeterDlg, IDC_MSCOMM1, 1 /* OnComm */, OnOnCommMscomm1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CVoltageMeterDlg::OnOnCommMscomm1() 
{
	// TODO: Add your control notification handler code here
	VARIANT variant_inp;
	COleSafeArray safearray_inp;
	LONG len,k;
	BYTE rxdata[64];
	CString tempdata;

	if(m_CtrlComm.GetCommEvent() == 2)			//接收到字符
	{
		variant_inp = m_CtrlComm.GetInput();	//读取缓冲
		safearray_inp = variant_inp;			//VARIANT类型转换成COLeSafeArray型
		len = safearray_inp.GetOneDimSize();
		for(k=0;k<len;k++)
		{
			safearray_inp.GetElement(&k,rxdata+k);//转换为BYTE型数组
		}
		if(rxdata[0] == 1)	//通道一数据
		{
			tempdata = rxdata[1]+0x30;
			tempdata += '.';
			tempdata += rxdata[2]+0x30;
			tempdata += rxdata[3]+0x30;
			tempdata += ' ';
			tempdata += 'V';
			SetDlgItemText(IDC_EDIT_RX1,tempdata);
			tempdata =' ';
			SetTimer(3,500,NULL);	//复位超链接超时定时器
		//	m_timeout = FALSE;
		}
		if(rxdata[4] == 2) //通道二数据
		{
			tempdata = rxdata[5]+0x30;
			tempdata += '.';
			tempdata += rxdata[6]+0x30;
			tempdata += rxdata[7]+0x30;
			tempdata += ' ';
			tempdata += 'V';
			SetDlgItemText(IDC_EDIT_RX2,tempdata);
			tempdata =' ';
			SetTimer(3,500,NULL);
		//	m_timeout = FALSE;
		}
	}
}