Лабораторная работа №6. Элементы управления «Шкала индикации» (Progress) и «Маркер» (Slider). Модальные диалоговые окна
Задание
14.
Решение
// CLabProgressBarDlg.cpp : implementation file
//
#include "stdafx.h"
#include "CLabProgressBar.h"
#include "CLabProgressBarDlg.h"
#include "math.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CCLabProgressBarDlg dialog
CCLabProgressBarDlg::CCLabProgressBarDlg(CWnd* pParent /*=NULL*/)
: CDialog(CCLabProgressBarDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CCLabProgressBarDlg)
m_res = 0.0;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CCLabProgressBarDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CCLabProgressBarDlg)
DDX_Control(pDX, IDC_SLIDER1, m_slider);
DDX_Control(pDX, IDC_PROGRESS1, m_progress);
DDX_Text(pDX, IDC_EDIT1, m_res);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CCLabProgressBarDlg, CDialog)
//{{AFX_MSG_MAP(CCLabProgressBarDlg)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CCLabProgressBarDlg message handlers
BOOL CCLabProgressBarDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 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
// TODO: Add extra initialization here
m_slider.SetRange(100,1000000);
// устанавливаем диапазон в элементе Slider
m_slider.SetPos(50000);
//устанавливаем положение ползунка
//return TRUE; // return TRUE unless you set the focus to a control
//}
return TRUE; // return TRUE unless you set the focus to a control
}
// 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 CCLabProgressBarDlg::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 CCLabProgressBarDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CCLabProgressBarDlg::OnButton1()
{
// TODO: Add your control notification handler code here
//обработчик кнопки Граничные условия.
d.DoModal(); //вызов модального окна
}
void CCLabProgressBarDlg::OnButton2()
{ //обработчик кнопки Пуск.
CWaitCursor w; //класс для установки курсора - часы.
double s=0;
double x=d.m_a; //считывание из диалога нач. значения.
double h=(d.m_b-x)/m_slider.GetPos(); //вычисление h=(b-a)/N
int i=0;
while(x<d.m_b)
{ double f=cos(2*x); //числение квадрата икса
s+=f*h; // вычисление суммы
x+=h;
m_progress.SetPos(100*i++/m_slider.GetPos());
//установка положения в полосы в Progress
}m_res=s;
UpdateData(0);
}
