2D Graph ActiveX Control

// DemoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Demo.h"
#include "DemoDlg.h"

#include <math.h>

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

/////////////////////////////////////////////////////////////////////////////
// CDemoDlg dialog

CDemoDlg::CDemoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDemoDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDemoDlg)
		// 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 CDemoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDemoDlg)
	DDX_Control(pDX, IDC_SHOW_CURSOR, m_cbShowCursor);
	DDX_Control(pDX, IDC_CHECK_SHOW_ELEMENT4, m_cbShowElement4);
	DDX_Control(pDX, IDC_CHECK_SHOW_ELEMENT3, m_cbShowElement3);
	DDX_Control(pDX, IDC_CHECK_SHOW_ELEMENT2, m_cbShowElement2);
	DDX_Control(pDX, IDC_CHECK_SHOW_ELEMENT1, m_cbShowElement1);
	DDX_Control(pDX, IDC_NTGRAPHCTRL1, m_Graph);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDemoDlg, CDialog)
	//{{AFX_MSG_MAP(CDemoDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_CHECK_SHOW_ELEMENT1, OnCheckShowElement1)
	ON_BN_CLICKED(IDC_CHECK_SHOW_ELEMENT2, OnCheckShowElement2)
	ON_BN_CLICKED(IDC_CHECK_SHOW_ELEMENT3, OnCheckShowElement3)
	ON_BN_CLICKED(IDC_CHECK_SHOW_ELEMENT4, OnCheckShowElement4)
	ON_BN_CLICKED(IDC_BUTTON_PLOT, OnButtonPlot)
	ON_BN_CLICKED(IDC_BUTTON_CLEAR, OnButtonClear)
	ON_BN_CLICKED(IDC_BUTTON_COPY, OnButtonCopy)
	ON_BN_CLICKED(IDC_SHOW_CURSOR, OnShowCursor)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

BEGIN_EVENTSINK_MAP(CDemoDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CDemoDlg)
	ON_EVENT(CDemoDlg, IDC_NTGRAPHCTRL1, 1 /* CursorEvent */, OnCursorEventNtgraphctrl1, VTS_R8 VTS_R8)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDemoDlg message handlers

BOOL CDemoDlg::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
	m_cbShowElement1.SetCheck(1);
	m_cbShowElement2.SetCheck(1);
	m_cbShowElement3.SetCheck(1);
	m_cbShowElement4.SetCheck(1);
	
	// Customize Graph 
	m_Graph.SetBackColor (RGB(0,0,0));
	m_Graph.SetAxisColor (RGB(0,255,0));
	m_Graph.SetLabelColor (RGB(128,255,255));
    
	m_Graph.SetGridColor(RGB(192,192,192));
	m_Graph.SetShowGrid (TRUE);

	m_Graph.SetCursorColor (RGB(255,0,0));
	m_Graph.SetCursorMode (TRUE);

	m_Graph.SetGraphTitle("2D Graph");
	m_Graph.SetXLabel ("Wavelength (nm)");
	m_Graph.SetYLabel("Intensity (counts/sec.)");
	m_Graph.SetRange(0.,10,-1,1.);

	// Set the number of elements to be plotted. 
	m_Graph.SetElementCount (4);

	// Allocate space for Elements with 2000 points.
	if ( !m_Graph.CreateElement(2000) ) {
		AfxMessageBox("Error allocating graph element") ;
        return FALSE;
	}

	
	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 CDemoDlg::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 CDemoDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}


void CDemoDlg::OnButtonPlot() 
{

//
// Customize Graph Elements 
//
//
   // Select Graph Element to change the plot color 
   m_Graph.SetElement(0); 
   // Change the plot color of selected Graph Element
   m_Graph.SetElementColor (RGB(255,0,0));

   m_Graph.SetElement(1);
   m_Graph.SetElementColor (RGB(0,255,0));
   m_Graph.SetElement(2);
   m_Graph.SetElementColor (RGB(0,0,255));
   m_Graph.SetElement(3);
   m_Graph.SetElementColor(RGB(255,127,0));
   
   m_Graph.SetRange(0,2000,-0.1,2);

   
//
// Load Data int the Graph Elements 
//



   for ( int i = 0 ; i < 2000 ; i++)
   {
	   double sigma = 150;
	   double pi = 3.14;
	   double x0 = 1000.;
	   double x = (double)i;
	   double y = 600*(exp(-pow(((x-x0)/sigma),2)/2) / (sqrt(2*pi)*sigma));
        
	    m_Graph.SetXYValue(x,y,i,0);         //Element 1
		m_Graph.SetXYValue(x+100,y,i,1);     //Element 2
 		m_Graph.SetXYValue(x-100,y*0.1,i,2); //Element 3
		m_Graph.SetXYValue(x+200,y*1.2,i,3); //Element 4
   }


//
// Redraw the Control
//
   m_Graph.Invalidate ();

}

void CDemoDlg::OnButtonClear() 
{
	// Clear the Graph
	m_Graph.ClearGraph ();
}

void CDemoDlg::OnCheckShowElement1() 
{
	ShowElement(0, m_cbShowElement1.GetCheck());
}

void CDemoDlg::OnCheckShowElement2() 
{
	ShowElement(1, m_cbShowElement2.GetCheck());	
}

void CDemoDlg::OnCheckShowElement3() 
{
	ShowElement(2, m_cbShowElement3.GetCheck());	
}

void CDemoDlg::OnCheckShowElement4() 
{
	ShowElement(3, m_cbShowElement4.GetCheck());	
}

void CDemoDlg::ShowElement(const int nElement, const BOOL bShow)
{
	m_Graph.SetElement(nElement);
	m_Graph.SetShowElement(bShow);
}

void CDemoDlg::OnButtonCopy() 
{
    m_Graph.Copy2Clipboard();	
}



void CDemoDlg::OnCursorEventNtgraphctrl1(double x, double y) 
{
	TRACE( "X%3.3f, Y%3.3f\n", x, y ); // gibt die Koordinaten korrekt aus.
	
}


void CDemoDlg::OnShowCursor() 
{
	 m_Graph.SetCursorMode(m_cbShowCursor.GetCheck());
}