// 9524dmaDlg.cpp : implementation file
//

#include "stdafx.h"
#include "9524dma.h"
#include "9524dmaDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

CRect plotRect;

// 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()


// C9524dmaDlg dialog


C9524dmaDlg::C9524dmaDlg(I16 hCard, CWnd* pParent /*=NULL*/)
	: CDialog(C9524dmaDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

	n_PlotWidth = n_PlotHeight = -1;
 	OnBrush = OffBrush = NULL;

	m_hCard = hCard;
	m_nTimer = -1;

	m_wRange = AD_B_10_V;

	max_range = 8388607;
	min_range = -8388608;

	m_wXMode = P9524_AI_XFER_DMA;
	m_dwSampRate = P9524_ADC_30K_SPS;
	w_mGroup = P9524_AI_LC_Group;
	m_wChan = P9524_AI_LC_CH0;
}

void C9524dmaDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_COMBO_SCANCHAN, m_cbScanChans);
	DDX_Control(pDX, IDC_COMBO_SAMPLE_RATE, m_cbSampRate);
}

BEGIN_MESSAGE_MAP(C9524dmaDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_WM_DESTROY()
	ON_CBN_SELCHANGE(IDC_COMBO_SCANCHAN, &C9524dmaDlg::OnScanChanSelchange)
	ON_BN_CLICKED(IDC_BT_START, &C9524dmaDlg::OnStart)
	ON_WM_TIMER()
	ON_CBN_SELCHANGE(IDC_COMBO_SAMPLE_RATE, &C9524dmaDlg::OnSampRateSelchange)
END_MESSAGE_MAP()


// C9524dmaDlg message handlers

BOOL C9524dmaDlg::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)
	{
		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 = 4;	

	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));	
	YellowPen.CreatePen( PS_SOLID, 1, RGB(255,255,0));
	BluePen.CreatePen( PS_SOLID, 1, RGB(0,0,255));

	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
	m_cbSampRate.SetCurSel( 0 );
	m_cbScanChans.SetCurSel( 0 );

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

void C9524dmaDlg::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 C9524dmaDlg::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 C9524dmaDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


void C9524dmaDlg::redraw_display_area(void)
{
	CPen *oldPen;

	int oldMode;
	COLORREF oldColor;
	double fTemp;
	U32 dwTemp;

	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) );

		fTemp = ( ((max_range-min_range)/y_divider) * i)+min_range;
		dwTemp = (U32) fTemp;
		if( dwTemp & 0x80000000 ) // negative value
		{
			dwTemp = (dwTemp & 0x00FFFFFF);
		}

		tick_str.Format( _T("0x%06X"), dwTemp );

		// 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 C9524dmaDlg::OnDestroy()
{
	CDialog::OnDestroy();

	// TODO: Add your message handler code here
	if( m_nTimer != -1 )
	{
		KillTimer( m_nTimer );
		m_nTimer = -1;
	}


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

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

	RedPen.DeleteObject();
	GreenPen.DeleteObject();
	YellowPen.DeleteObject();
	BluePen.DeleteObject();
}

void C9524dmaDlg::OnScanChanSelchange()
{
	// TODO: Add your control notification handler code here
	int nIndex;

	nIndex = m_cbScanChans.GetCurSel();

	switch( nIndex )
	{
	case 0:
		m_wChan = P9524_AI_LC_CH0;
		break;
	case 1:
		m_wChan = P9524_AI_LC_CH1;
		break;
	case 2:
		m_wChan = P9524_AI_LC_CH2; 
		break;
	case 3:
		m_wChan = P9524_AI_LC_CH3;
		break;
	}

}

void C9524dmaDlg::OnStart()
{
	// TODO: Add your control notification handler code here
	CString strTemp;
	I16 err;

    GetDlgItem( IDC_BT_START )->EnableWindow(FALSE);

	// allocate a memory for user DMA buffer 
	memset( m_AIBuf, '\0', READCOUNT * sizeof(U32) );
	
	
	m_oldY[0] = m_oldY[1] = m_oldY[2] = m_oldY[3] = -1;
	m_oldX[0] = m_oldX[1] = m_oldX[2] = m_oldX[3] = -1;

	/*Disable Double Buffer Mode*/
	err = AI_AsyncDblBufferMode(m_hCard, 0); // single-buffer mode
	if (err!=0)
	{
		strTemp.Format( TEXT("AI_DblBufferMode error=%d"), err);
		AfxMessageBox( strTemp );
		return;
	}

	err = AI_ContBufferSetup (m_hCard, m_AIBuf, READCOUNT, &m_wBufferID);
	if (err!=0)
	{
		strTemp.Format( TEXT("AI_ContBufferSetup error=%d"), err);
		AfxMessageBox( strTemp );
		return;
	}
	
	err = AI_9524_SetDSP(m_hCard, m_wChan, P9524_SPIKE_REJ_ENABLE, 5, 268);
    if(err<0)
	{
		strTemp.Format( TEXT("AI_9524_SetDSP error=%d"), err);
		AfxMessageBox( strTemp );
		return;
	}

	/*Configure AI*/
	err = AI_9524_Config(m_hCard, w_mGroup, m_wXMode, (P9524_VEX_Range_10V|P9524_VEX_Sence_Remote|P9524_AI_AZMode|P9524_AI_BufAutoReset), 0, 0);
	if (err!=0)
	{
		strTemp.Format( TEXT("AI_9524_Config error=%d"), err);
		AfxMessageBox( strTemp );
		return;
	}

	err = AI_ContReadChannel(m_hCard, m_wChan, 0, &m_wBufferID, READCOUNT, (F64)m_dwSampRate, ASYNCH_OP);
	if (err!=0)
	{
		strTemp.Format( TEXT("AI_ContScanChannels error=%d"), err);
		AfxMessageBox( strTemp );
		return;
	}

	m_nTimer = SetTimer( 1, 20, NULL );

}

int C9524dmaDlg::display_buffer_data(U32* pBuf)
{
	CClientDC dc_plot(this);
	int nDraw_Origin_Y; 
	int cur_channel;

	int newY = -1;
	int newX = -1;
	U32 index;
	I32 ai_data, nTemp;

	dc_plot.FillSolidRect( plotRect, RGB(0,0,0) );

	nDraw_Origin_Y = ( plotRect.bottom - 5 ) - n_PlotHeight/2;

	for( index=0; index<READCOUNT; index++ )
	{                    
		nTemp = (I32)(pBuf[index]);
		cur_channel = (int)((nTemp >> 4) & 0x0F);
		ai_data = (nTemp >> 8);

		newY = (int)( nDraw_Origin_Y - ((n_PlotHeight * ai_data) >> 24) ); // ( n_PlotHeight * ai_data / 16777216) ); // ( (n_PlotHeight/2) * ai_data/8388608 ) );
		newX = (int)( index*n_PlotWidth/READCOUNT + plotRect.left );

		switch(cur_channel)
		{
		case 0:
			dc_plot.SelectObject(&YellowPen);
			break;
		case 1:
			dc_plot.SelectObject(&BluePen);
			break;
		case 2:
			dc_plot.SelectObject(&BluePen);
			break;
		case 3:
			dc_plot.SelectObject(&RedPen);
			break;
		}


		if (  m_oldX[cur_channel] == -1 ) 
		{
			dc_plot.MoveTo( newX, newY );
		}
		else
		{
			dc_plot.MoveTo( m_oldX[cur_channel], m_oldY[cur_channel] );
			dc_plot.LineTo( newX, newY );
		}

		m_oldX[cur_channel] = newX; 
		m_oldY[cur_channel] = newY;
	}

	return 0;
}

void C9524dmaDlg::OnTimer(UINT_PTR nIDEvent)
{
	// TODO: Add your message handler code here and/or call default
	BOOLEAN fstop;
	U32 count;

	AI_AsyncCheck(m_hCard, &fstop, &count);

	if( fstop == TRUE )
	{
		AI_AsyncClear(m_hCard, &count);

		KillTimer( m_nTimer );
		m_nTimer = -1;

		display_buffer_data( m_AIBuf );

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

	CDialog::OnTimer(nIDEvent);
}

void C9524dmaDlg::OnSampRateSelchange()
{
	// TODO: Add your control notification handler code here
	int nIndex;

	nIndex = m_cbSampRate.GetCurSel();
	switch( nIndex )
	{
	case 0:
		m_dwSampRate = P9524_ADC_30K_SPS; 
		break;
	case 1:
		m_dwSampRate = P9524_ADC_15K_SPS; 
		break;
	case 2:
		m_dwSampRate = P9524_ADC_7K5_SPS; 
		break;
	case 3:
		m_dwSampRate = P9524_ADC_3K75_SPS; 
		break;
	case 4:
		m_dwSampRate = P9524_ADC_2K_SPS; 
		break;
	case 5:
		m_dwSampRate = P9524_ADC_1K_SPS; 
		break;
	case 6:
		m_dwSampRate = P9524_ADC_500_SPS; 
		break;
	case 7:
		m_dwSampRate = P9524_ADC_100_SPS; 
		break;
	case 8:
		m_dwSampRate = P9524_ADC_60_SPS; 
		break;
	case 9:
		m_dwSampRate = P9524_ADC_50_SPS; 
		break;
	case 10:
		m_dwSampRate = P9524_ADC_30_SPS; 
		break;
	case 11:
		m_dwSampRate = P9524_ADC_25_SPS; 
		break;
	case 12:
		m_dwSampRate = P9524_ADC_15_SPS; 
		break;
	case 13:
		m_dwSampRate = P9524_ADC_10_SPS; 
		break;
	case 14:
		m_dwSampRate = P9524_ADC_5_SPS; 
		break;
	case 15:
		m_dwSampRate = P9524_ADC_2R5_SPS; 
		break;
	}
}