virtualwavedlg.cpp

实现波形的显示,可以作为示波器的一个模块

// virtualWaveDlg.cpp : implementation file
//

#include "stdafx.h"
#include "virtualWave.h"
#include "virtualWaveDlg.h"
#include "Draw.h"
#include <math.h>
//#include "ChartWnd.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()

/////////////////////////////////////////////////////////////////////////////
// CVirtualWaveDlg dialog

CVirtualWaveDlg::CVirtualWaveDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CVirtualWaveDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CVirtualWaveDlg)
		// 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 CVirtualWaveDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CVirtualWaveDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CVirtualWaveDlg, CDialog)
	//{{AFX_MSG_MAP(CVirtualWaveDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_DESTROY()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_TEST_WAVE, OnTestWave)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CVirtualWaveDlg message handlers

BOOL CVirtualWaveDlg::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
	m_count = 0;

	CRect drawArea;
	GetDlgItem(IDC_DRAW_AREA)->GetClientRect(&drawArea);

	drawArea.bottom -= 10;
	drawArea.left += 10;
	drawArea.right  -= 10;
	drawArea.top += 15;

	mChart.Create("test chart", WS_CHILD | WS_VISIBLE | WS_BORDER, drawArea, GetDlgItem(IDC_DRAW_AREA), 0);
	mChart.SetXScale(0, 10);
	mChart.SetYScale(-5, 5);
	mChart.SetTitle(0, "Virtual Wave");
	mChart.SetTitle(1, "X");
	mChart.SetTitle(2, "Y");	
	mChart.SetTickFormat("%.3f", "%.3f");

	mChart.SetBackColor(RGB(18, 80, 38));
/*	mChart.SetTitleColor(0, RGB(255, 255, 0));
	mChart.SetTitleColor(1, RGB(255, 255, 255));
	mChart.SetTitleColor(2, RGB(255, 0, 255));

	mChart.SetLableColor(1, RGB(0, 0 ,0));
	mChart.SetLableColor(2, RGB(0, 0 ,0));
	mChart.SetLableColor(3, RGB(0, 0 ,0));
	mChart.SetLableColor(4, RGB(0, 0 ,0));*/

	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CVirtualWaveDlg::OnDestroy()
{
	WinHelp(0L, HELP_QUIT);
	CDialog::OnDestroy();
}

// 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 CVirtualWaveDlg::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 CVirtualWaveDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CVirtualWaveDlg::OnTestWave() 
{
	// TODO: Add your control notification handler code here
	mChart.SetSerialCount(2);

	//通道0
	mChart.ClearSerialPoints(0);
	//通道1
	mChart.ClearSerialPoints(1);
	SetTimer(1,50,NULL);
}

void CVirtualWaveDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	double secs = 100;

	double t;
	double y;

	t = (double)m_count / secs;
	y = 4*sin(3.14 *t);
	mChart.AddSerialPoint(0, t, y, m_count);

	y = 4*cos(3.14 *t);
	mChart.AddSerialPoint(1, t, y, m_count);
	mChart.SetChartType(1);
	m_count++;
	CDialog::OnTimer(nIDEvent);
}

void CVirtualWaveDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	KillTimer(1);
	CDialog::OnCancel();
}