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Файл:Реферат - Потоки / TestThread / TestThreadDlg
.cpp// TestThreadDlg.cpp : implementation file
//
#include "stdafx.h"
#include "TestThread.h"
#include "TestThreadDlg.h"
#include "LoopClass.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define TIMER_STOP_DELAY 1
#define TIMER_START_DELAY 2
UINT stopTimer = 0;
UINT startTimer = 0;
UINT WorkerThread(LPVOID pParam);
/////////////////////////////////////////////////////////////////////////////
// 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()
/////////////////////////////////////////////////////////////////////////////
// CTestThreadDlg dialog
CTestThreadDlg::CTestThreadDlg(CWnd* pParent /*=NULL*/)
: CDialog(CTestThreadDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CTestThreadDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CTestThreadDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CTestThreadDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CTestThreadDlg, CDialog)
//{{AFX_MSG_MAP(CTestThreadDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BTN_START, OnBtnStart)
ON_BN_CLICKED(IDC_BTN_STOP, OnBtnStop)
ON_WM_TIMER()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTestThreadDlg message handlers
BOOL CTestThreadDlg::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
EnableStopButton(false);
return TRUE; // return TRUE unless you set the focus to a control
}
void CTestThreadDlg::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 CTestThreadDlg::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 CTestThreadDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CTestThreadDlg::OnBtnStart()
{
// Starting the first loop by declaring a variable of the
// class CLoopClass, passing a pointer to the dialog to
// the classes constructor...This loop will lock up the
// dialog until it finishes
DisplayMessage("Starting Loop directly from Class (Loop1 via OnBtnStart)");
CLoopClass lpcls((CTestThreadDlg*)this);
lpcls.Loop(10, 100, 100);
// Here is where we start the new worker thread
// this is passed using the void pointer pParam
// from here on the new thread will do the work
// and the dialog will be free to move about.
CWinThread* pWThread = AfxBeginThread(WorkerThread, this);
}
/*
The global thread controller function.
To begin the new worker thread, use
CWinThread* pWkrThread = AfxBeginThread(WorkerThread, this);
see the OnBtnStart() function above
*/
UINT WorkerThread(LPVOID pParam)
{
// Cast void pointer pParam to a CTestThreadDlg pointer passed
// by the calling function
CTestThreadDlg* pDlg = (CTestThreadDlg*)pParam;
pDlg->DisplayMessage("Entering Worker Loop (Loop2)");
// Enter the first loop of the worker thread
for(int x = 0; x < 11; x++)
{
long cntr1 = 0;
CString num1;
num1.Format("%d", x);
pDlg->SetDlgItemText(IDC_TXT1, num1);
while(cntr1 < 100)
{
long cntr2 = 0;
CString num2;
num2.Format("%d", cntr1);
pDlg->SetDlgItemText(IDC_TXT2, num2);
while(cntr2 < 100)
{
CString num3;
num3.Format("%d", cntr2);
pDlg->SetDlgItemText(IDC_TXT3, num3);
cntr2++;
}
cntr1++;
}
}
pDlg->DisplayMessage("Entering Loop Class from Worker Thread (Loop3)");
// Declare a variable of the CLoopClass class and call
// the function loop...the second loop of the worker thread
CLoopClass lpcls(pDlg);
lpcls.Loop(12, 150, 200);
// This is just here because I wanted to play with a timer
// This timer waits 4 seconds then enables the Stop button
stopTimer = pDlg->SetTimer(TIMER_STOP_DELAY, 4000, 0);
return 0;
}
void CTestThreadDlg::OnBtnStop()
{
EnableStopButton(false);
SetLabelsToZero();
}
void CTestThreadDlg::OnTimer(UINT nIDEvent)
{
if(nIDEvent == TIMER_STOP_DELAY)
{
KillTimer(stopTimer);
EnableStopButton();
}
CDialog::OnTimer(nIDEvent);
}
void CTestThreadDlg::EnableStopButton(bool enbl /* = true */)
{
CButton* pBtn = (CButton*)GetDlgItem(IDC_BTN_STOP);
pBtn->EnableWindow(enbl);
}
void CTestThreadDlg::SetLabelsToZero()
{
SetDlgItemText(IDC_TXT1, "0");
SetDlgItemText(IDC_TXT2, "0");
SetDlgItemText(IDC_TXT3, "0");
SetDlgItemText(IDC_MESSG, "");
}
CDialog* CTestThreadDlg::GetDlgPointer()
{
return (CTestThreadDlg*)this;
}
void CTestThreadDlg::DisplayMessage(LPCTSTR mesg)
{
SetDlgItemText(IDC_MESSG, mesg);
}
Соседние файлы в папке TestThread