basdemodlg.cpp

< VC++串口通信工程发型实例导航>>源代码

// BASDemoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "BASDemo.h"
#include "BASDemoDlg.h"

#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()

/////////////////////////////////////////////////////////////////////////////
// CBASDemoDlg dialog

CBASDemoDlg::CBASDemoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBASDemoDlg::IDD, pParent),
	m_nDataCount(0),
	m_nTimerID(1)
{
	//{{AFX_DATA_INIT(CBASDemoDlg)
	m_nSetpoint = 0;
	m_nTemp = 0;
	m_nFan = -1;
	m_nMode = -1;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	memset(m_szData, 0, sizeof(m_szData));
}

void CBASDemoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBASDemoDlg)
	DDX_Text(pDX, IDC_EDIT_SETPOINT, m_nSetpoint);
	DDV_MinMaxInt(pDX, m_nSetpoint, 0, 127);
	DDX_Text(pDX, IDC_EDIT_TEMP, m_nTemp);
	DDV_MinMaxInt(pDX, m_nTemp, 0, 127);
	DDX_Radio(pDX, IDC_RADIO_FAN, m_nFan);
	DDX_Radio(pDX, IDC_RADIO_MODE, m_nMode);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CBASDemoDlg, CDialog)
	//{{AFX_MSG_MAP(CBASDemoDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_CHANGE_FAN, OnButtonChangeFan)
	ON_BN_CLICKED(IDC_BUTTON_CHANGE_MODE, OnButtonChangeMode)
	ON_BN_CLICKED(IDC_BUTTON_CHANGE_SETPOINT, OnButtonChangeSetpoint)
	ON_BN_CLICKED(IDC_BUTTON_DOWN, OnButtonDown)
	ON_BN_CLICKED(IDC_BUTTON_UP, OnButtonUp)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_COMM_RXCHAR, OnCommunication)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBASDemoDlg message handlers

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

	// Add "About..." menu item to system menu.

	// 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

	// 初始化串口
	if (m_Port.InitPort(this, PORTNUM, 9600, 'N', 8, 1))
	{
		m_Port.StartMonitoring();
		SetTimer(m_nTimerID, TIMERINTERVAL, NULL);
	}
	else
	{
		AfxMessageBox(_T("初始化串口失败。"));
	}
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CBASDemoDlg::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 CBASDemoDlg::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 CBASDemoDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

LONG CBASDemoDlg::OnCommunication(WPARAM wParam, LPARAM lParam)
{
	// 将接收到的数据存放在m_szData变量中
	m_szData[m_nDataCount] = wParam;
	++m_nDataCount;

	// 一条信息以回车'\r'结束，接收到该字符说明一条信息已经结束
	if (wParam == '\r')
	{
		// 给接收到的数据加上结束符
		m_szData[m_nDataCount] = '\0';
		
		// 处理接收到的数据
		ProcessData();

		// 清空缓存区，等待下一次接收
		m_nDataCount = 0;
		memset(m_szData, 0, sizeof(m_szData));
	}
	
	return 0;
}

void CBASDemoDlg::OnButtonChangeFan() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if (m_nFan < 0) return;

	char szCmd[11];
	sprintf(szCmd, _T("A=1,F=%d\r"), m_nFan);
	m_Port.WriteToPort(szCmd);
}

void CBASDemoDlg::OnButtonChangeMode() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if (m_nMode < 0) return;

	char chMode;
	switch (m_nMode)
	{
	case 0:
		chMode = 'O';
		break;
	case 1:
		chMode = 'H';
		break;
	case 2:
		chMode = 'C';
		break;
	case 3:
		chMode = 'A';
		break;
	}

	char szCmd[11];
	sprintf(szCmd, _T("A=1,M=%c\r"), chMode);
	m_Port.WriteToPort(szCmd);	
}

void CBASDemoDlg::OnButtonChangeSetpoint() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if (m_nSetpoint < 0 || m_nSetpoint > 127) return;

	char szCmd[12];
	sprintf(szCmd, _T("A=1,SP=%d\r"), m_nSetpoint);
	m_Port.WriteToPort(szCmd);
}

void CBASDemoDlg::OnButtonDown() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if (m_nSetpoint < 1) return;

	char szCmd[9];
	sprintf(szCmd, _T("A=1,SP-\r"), m_nSetpoint);
	m_Port.WriteToPort(szCmd);
}

void CBASDemoDlg::OnButtonUp() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if (m_nSetpoint > 126) return;

	char szCmd[9];
	sprintf(szCmd, _T("A=1,SP+\r"), m_nSetpoint);
	m_Port.WriteToPort(szCmd);
}

void CBASDemoDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	if (nIDEvent == m_nTimerID)
	{
		char szCmd[9];
		sprintf(szCmd, _T("A=1,R=1\r"));
		m_Port.WriteToPort(szCmd);
	}
	
	CDialog::OnTimer(nIDEvent);
}

void CBASDemoDlg::ProcessData()
{
	// 利用CString类来处理接收到的状态信息
	CString strStatus(m_szData);

	int nPos1, nPos2;

	// 找到当前温度
	nPos1 = strStatus.Find(_T("T="), 0);
	nPos2 = strStatus.Find(_T(","), nPos1);
	CString strTemp = strStatus.Mid(nPos1 + 2, nPos2 - nPos1 - 2);
	m_nTemp = atoi(strTemp);

	// 找到设定温度
	nPos1 = strStatus.Find(_T("SP="), 0);
	nPos2 = strStatus.Find(_T(","), nPos1);
	CString strSetpoint = strStatus.Mid(nPos1 + 3, nPos2 - nPos1 - 3);
	m_nSetpoint = atoi(strSetpoint);

	// 找到工作模式
	nPos1 = strStatus.Find(_T("M="), 0);
	char chMode = strStatus.GetAt(nPos1 + 2);
	switch (chMode)
	{
	case 'O':
		m_nMode = 0;
		break;
	case 'H':
		m_nMode = 1;
		break;
	case 'C':
		m_nMode = 2;
		break;
	case 'A':
		m_nMode = 3;
		break;
	default:
		m_nMode = '-1';
		break;
	}

	// 找到风机状态
	nPos1 = strStatus.Find(_T("FM="), 0);
	nPos2 = strStatus.Find(_T(","), nPos1);
	CString strFan = strStatus.Mid(nPos1 + 3, 1);
	m_nFan = atoi(strFan);

	// 更新状态显示
	UpdateData(FALSE);
}