// 7200WavDlg.cpp : implementation file
//

#include "stdafx.h"
#include "7200Wav.h"
#include "7200WavDlg.h"
#include "math.h"

#define fifo_loop_count 2048

#ifndef   M_PI
#define   M_PI     3.14159265359
#endif

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

CRect plotRect;

#define PCI7200_DIO_STATUS_TIMER 1

#ifdef _SELF_OUTPUT_
ULONG DoBuf[10240];
BOOLEAN bOutStopped;
ULONG out_count;
#endif

// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// C7200WavDlg dialog




C7200WavDlg::C7200WavDlg(I16 hCard, CWnd* pParent /*=NULL*/)
	: CDialog(C7200WavDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

	m_hCard = hCard;

 	OnBrush = OffBrush = NULL;

	n_PlotWidth = -1;
	n_PlotHeight = -1;

	min_val = 0x00;
	max_val = 0xFFFFFFFF;

	m_fSampleRate = 100000.0; // 100KHz
	m_dwDISamples = 10240;
	m_pDIAddr = NULL;

	m_nTimer = -1;

#ifdef _SELF_OUTPUT_
    for (int i=0; i<10240; i++)
	   DoBuf[i] = (U32)(sin((double)i/1024*M_PI)*0x7FFFFFFF)+0x80000000;
#endif

}

void C7200WavDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(C7200WavDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_WM_DESTROY()
	ON_BN_CLICKED(IDC_BT_START, &C7200WavDlg::OnStart)
	ON_BN_CLICKED(IDC_BT_STOP, &C7200WavDlg::OnStop)
	ON_WM_TIMER()
	ON_WM_VSCROLL()
END_MESSAGE_MAP()


// C7200WavDlg message handlers

BOOL C7200WavDlg::OnInitDialog()
{
	CString strTemp;

	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)
	{
		BOOL bNameValid;
		CString strAboutMenu;
		bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
		ASSERT(bNameValid);
		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
	x_divider = 5; y_divider = 2;	

	OnBrush = CreateSolidBrush( RGB(255,0,0) );
	OffBrush = CreateSolidBrush( RGB(125,0,0) );

	RedPen.CreatePen( PS_SOLID, 1, RGB(255,0,0));
	GreenPen.CreatePen( PS_SOLID, 1, RGB(0,255,0));	

	if(	n_PlotWidth == -1 && n_PlotHeight == -1 )
	{
		((CWnd*)GetDlgItem(IDC_STATIC_DRAW))->GetWindowRect(&plotRect);
		ScreenToClient(&plotRect);

		n_PlotWidth = min( plotRect.Width(), 512);
		n_PlotHeight = plotRect.Height() - 10;
	}

	// set the default SampleRate
	SetDlgItemInt( IDC_EDIT_SAMPLE_RATE, (UINT)(m_fSampleRate/1000) );

	// Set the default DI Sample
	SetDlgItemInt( IDC_EDIT_SAMPLE, (UINT)(m_dwDISamples) );


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

void C7200WavDlg::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 C7200WavDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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
	{
		redraw_display_area();
		CDialog::OnPaint();
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR C7200WavDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


void C7200WavDlg::OnDestroy()
{
	U32 count;

	CDialog::OnDestroy();

	// TODO: Add your message handler code here
	if( OnBrush != NULL )
		::DeleteObject( OnBrush );

	if( OffBrush != NULL )
		::DeleteObject( OffBrush );

	RedPen.DeleteObject();
	GreenPen.DeleteObject();

	if( m_nTimer != -1 )
	{
		KillTimer( m_nTimer );
		m_nTimer = -1;
	}

	DI_AsyncClear( m_hCard, &count );

#ifdef _SELF_OUTPUT_
	DO_AsyncClear( m_hCard, &count );
#endif

	if( m_pDIAddr != NULL )
	{
		free( m_pDIAddr );
		m_pDIAddr = NULL;
	}

}

void C7200WavDlg::OnStart()
{
	// TODO: Add your control notification handler code here
	U32 dwMemSize, dwDISamples;
	void* pMem;
	I16 err;
	CString strMsg;

	dwDISamples = GetDlgItemInt( IDC_EDIT_SAMPLE );
	
	if( dwDISamples != m_dwDISamples )
	{
		if( m_pDIAddr != NULL )
		{
			free( m_pDIAddr );
			m_pDIAddr = NULL;
		}
		m_dwDISamples = dwDISamples;
	}


  if( m_pDIAddr == NULL )
  {
		dwMemSize = m_dwDISamples * 4;
		pMem = malloc( dwMemSize );
		if( pMem == NULL )
		{
			AfxMessageBox( TEXT("Memory allocated failed") );
			return;
		}
		else
		{
			m_pDIAddr = (U32*) pMem;
			memset( m_pDIAddr, '\0', dwMemSize );
		}
	}
	else
	{
		pMem = (void*)m_pDIAddr;
	}
	
	if ((err=DI_7200_Config(m_hCard, TRIG_HANDSHAKE, DI_NOWAITING, DI_TRIG_FALLING, IREQ_RISING)) != NoError)
    {
		strMsg.Format( TEXT("DI_Config Error = %d") ,err );
		AfxMessageBox( strMsg );
		return;
    }
	
	if ((err=DI_AsyncDblBufferMode (m_hCard, 0)) != NoError)
    {
		strMsg.Format( TEXT("DI_AsyncDblBufferMode Error = %d\n"), err );
		AfxMessageBox( strMsg );
		return;
    }

#ifdef _SELF_OUTPUT_
	DO_7200_Config(m_hCard, TRIG_HANDSHAKE, OREQ_ENABLE, OTRIG_LOW);
	//DO_AsyncDblBufferMode( m_hCard, 0 );
#endif

	// clear display area
	redraw_display_area();

	if ((err=DI_ContReadPort(m_hCard, 0, pMem, m_dwDISamples, m_fSampleRate, ASYNCH_OP)) != NoError)
    {
		strMsg.Format( TEXT("DI_ContReadPort Error = %d\n"), err);
		AfxMessageBox( strMsg );
		return;
    }

#ifdef _SELF_OUTPUT_
	DO_ContWritePort(m_hCard, 0, DoBuf, m_dwDISamples+2, 1, (F64)100, ASYNCH_OP);
#endif
	


	if( m_nTimer == -1 )
	{
		m_nTimer = SetTimer( PCI7200_DIO_STATUS_TIMER, 50, NULL );
	}

	GetDlgItem( IDC_BT_START )->EnableWindow( FALSE );
	GetDlgItem( IDC_BT_STOP )->EnableWindow( TRUE );

}

void C7200WavDlg::OnStop()
{
	// TODO: Add your control notification handler code here
	U32 count;
	
    DI_AsyncClear(m_hCard, &count);
#ifdef _SELF_OUTPUT_
    DO_AsyncClear(m_hCard, &count);
#endif

	GetDlgItem( IDC_BT_START )->EnableWindow( TRUE );
	GetDlgItem( IDC_BT_STOP )->EnableWindow( FALSE);
}

void C7200WavDlg::OnTimer(UINT_PTR nIDEvent)
{
	// TODO: Add your message handler code here and/or call default
	BOOLEAN bStopped;
	U32 count;
	I16 err;

	err = DI_AsyncCheck( m_hCard, &bStopped, &count );

	if( bStopped )
	{
		// stop timer
		KillTimer( m_nTimer );
		m_nTimer = -1;

		// reset the Button status
		GetDlgItem( IDC_BT_START )->EnableWindow( TRUE );
		GetDlgItem( IDC_BT_STOP )->EnableWindow( TRUE);

	    err = DI_AsyncClear( m_hCard, &count );
#ifdef _SELF_OUTPUT_
		err = DO_AsyncClear( m_hCard, &count );
#endif

		display_buffer_data(m_pDIAddr);
	}

	CDialog::OnTimer(nIDEvent);
}


void C7200WavDlg::display_buffer_data(unsigned long* pBuf)
{
	CClientDC dc_plot(this);
	int nDraw_Bottom; 

	int newY, oldY = -1;
	int newX, oldX = -1;
	U32 index, di_data;

	nDraw_Bottom = ( plotRect.bottom - 5 );
	dc_plot.SelectObject( &GreenPen );

	for( index=0; index<m_dwDISamples; index++ )
	{
		di_data = pBuf[index];

		newY = (int)( nDraw_Bottom - (n_PlotHeight * ((double)di_data/0xffffffff) ) );
		newX = (int)( index*n_PlotWidth/m_dwDISamples + plotRect.left );

		if ( index == 0 ) 
		{
			dc_plot.MoveTo( newX, newY );
		}
		else
		{
			dc_plot.MoveTo( oldX, oldY );
		}

		dc_plot.LineTo( newX, newY );
		oldX = newX; oldY = newY;
	}
}

void C7200WavDlg::redraw_display_area(void)
{
	CPen *oldPen;

	int oldMode;
	COLORREF oldColor;

	CString y_lable;

	CPen minor_tick( PS_SOLID,1,RGB(132,130,132) );
//		CPen y_grid( PS_SOLID,1,RGB(206,203,132) );

	int i, x_intv, y_intv;
//		long total_sec;

	CClientDC dc_plot(this);

	// draw the base-line for x-y axises
	oldPen = (CPen *)dc_plot.SelectStockObject(BLACK_PEN);

	// redraw the background
	dc_plot.FillSolidRect( plotRect, RGB(0,0,0) );

	// Re-Draw the AREA for Y-Lable
	{
		CBrush DIALOG_BRUSH;
		CRect redraw_area, full_client;

		GetClientRect(&full_client);
		ScreenToClient(&full_client);

		redraw_area.left = full_client.left;
		redraw_area.top = plotRect.top - 5;
		redraw_area.right = plotRect.left - 3;
		redraw_area.bottom = plotRect.bottom + 10;

		DIALOG_BRUSH.CreateSysColorBrush( COLOR_3DFACE );

		dc_plot.FillRect( redraw_area, &DIALOG_BRUSH );

		DIALOG_BRUSH.DeleteObject();
	}

	dc_plot.MoveTo( plotRect.left - 3, plotRect.top );
	dc_plot.LineTo( plotRect.left - 3, plotRect.bottom );

	// calculate the interval for tick/grid
	y_intv = (plotRect.Height() - 10) /y_divider;
	x_intv = plotRect.Width()/x_divider;


	// set the color for tick
	oldColor = dc_plot.SetTextColor( RGB(0,0,0) );
	oldMode = dc_plot.SetBkMode( TRANSPARENT );

	for( i=0; i<= y_divider; i++ )
	{
		CString tick_str;
		CRect tmp_rect, tick_rect;

		// draw the tick for y-axis
		dc_plot.MoveTo( plotRect.left -12, plotRect.bottom -5 - (i*y_intv) );
		dc_plot.LineTo( plotRect.left -3, plotRect.bottom -5 - (i*y_intv) );

		tick_str.Format( _T("0x%08X"), ( ((max_val-min_val)/y_divider) * i)+min_val );

		// calculate the rectangle for text
		dc_plot.DrawText(  tick_str, &tmp_rect, DT_CALCRECT|DT_SINGLELINE );
		tick_rect.right = plotRect.left -14;
		tick_rect.left = tick_rect.right - tmp_rect.Width();
		tick_rect.top = plotRect.bottom -5 - (i*y_intv) - tmp_rect.Height()/2;
		tick_rect.bottom = tick_rect.top + tmp_rect.Height();

		// draw the text 
		dc_plot.DrawText( tick_str, &tick_rect, DT_SINGLELINE|DT_RIGHT );

	}

	// draw the minor_tick for Y axises
	dc_plot.SelectObject(&minor_tick);
	for( i=0; i< y_divider; i++ )
	{
		dc_plot.MoveTo( plotRect.left -9, plotRect.bottom -5 - (i*y_intv) - y_intv/2 );
		dc_plot.LineTo( plotRect.left -4, plotRect.bottom -5 - (i*y_intv) - y_intv/2 );
	}

	dc_plot.SetTextColor( oldColor );
	dc_plot.SetBkMode( oldMode );
	dc_plot.SelectObject( oldPen );
}

void C7200WavDlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
	// TODO: Add your message handler code here and/or call default
    switch ( nSBCode ) 
	{
       case SB_LINEUP :
          m_fSampleRate += 50000.0;
          if (m_fSampleRate > 1000000.0 ) m_fSampleRate = 1000000.0;
              break;
       case SB_LINEDOWN:
          m_fSampleRate -= 50000;
          if (m_fSampleRate < 50000 ) m_fSampleRate = 50000;
              break;
    }

	SetDlgItemInt( IDC_EDIT_SAMPLE_RATE, (UINT)(m_fSampleRate/1000) );

	CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}