Ejemplos de compute_yscale en C++ (Cpp)

Ejemplo n.º 1

//		Updates the display.
void CHistogramDlg::set_histo_channel()
{
	HWND hHisto, hTags;
	BOOL bInv, bMakeTotals;
	LPDWORD lpHisto;
	int i, j, iHisto;
	LONG sum;
	LONG lMaxEntry;
	LPDWORD lpdw;
	char szNum[40];
	HWND hDlg = GetSafeHwnd();
	
	bMakeTotals = (m_lpHistos[0] == NULL);
	lpHisto = get_histo(m_lpHistos, m_wChannel, &bInv, &iHisto);
	if (!lpHisto)
		return;
	
	// need to compute totals?
	if (bMakeTotals)
	{	
    	for (j=0;j<5;j++)
		{
			lpdw = m_lpHistos[j];
			sum = 0L;
			for (i=0;i<256;i++)
				sum += *lpdw++;
			m_lTotals[j] = sum;
		}
	}
	
	// setup the histo control
	lMaxEntry = compute_yscale(lpHisto);
	hHisto = ::GetDlgItem(hDlg, IDC_HISTOGRAM);
	Histo_Init(hHisto, lpHisto, lMaxEntry, HISTOMARKS, bInv ? HTS_FLIPX:0);
	// reset marks based on tag
	hTags = ::GetDlgItem(hDlg, IDC_TAGS);
	i = Tag_GetMark(hTags,0);
	Histo_SetMark(hHisto, 0, i, NO);
	i = Tag_GetMark(hTags,1);
	Histo_SetMark(hHisto, 1, i, NO);
	
	// setup the gradient
	set_gradient(IDC_HISTO_GRAD, m_wChannel);
	
	// setup readouts
	::SetDlgItemText(hDlg, IDC_HISTO_TOTAL, ltoa(m_lTotals[iHisto],szNum,10));
	::SetDlgItemText(hDlg, IDC_HISTO_POS, (LPSTR)"");
	::SetDlgItemText(hDlg, IDC_HISTO_VALUE, (LPSTR)"");
	histo_set_HMSvalues();
}

Ejemplo n.º 2

//************************************************************************
//		set_quarter_channel
// DESCRIPTION:
//		Makes the given channel the current channel.
//		Updates the display.
//************************************************************************
VOID CToneBalanceDlg::set_quarter_channel(WORD wChannel)
//************************************************************************
{
	LPDWORD lpHisto;
	HWND hControl;
	BOOL bInv;
	LONG lMaxEntry;
	int icons[3];
	HWND hDlg = GetSafeHwnd();
	
	
	m_lpData->lpMap = tone_activate_channel( wChannel );
	lpHisto = get_histo(m_lpData->lpHistos, wChannel, &bInv);
	
	// setup the histo control
	lMaxEntry = compute_yscale(lpHisto);
	hControl = ::GetDlgItem(hDlg, IDC_HISTOGRAM);
	Histo_Init(hControl, lpHisto, lMaxEntry, 3, bInv ? HTS_FLIPX:0);
	m_lpData->iShadow = m_lpData->lpMap->Pnt[0].x;
	m_lpData->iMidtone = m_lpData->lpMap->Pnt[1].x;
	m_lpData->iHighlight = m_lpData->lpMap->Pnt[2].x;
	if (!(m_lpData->iHighlight - m_lpData->iShadow))
		m_lpData->MidtonePer = 0;
	else
		m_lpData->MidtonePer = (m_lpData->iMidtone - m_lpData->iShadow)*255/
								(m_lpData->iHighlight - m_lpData->iShadow);
	Histo_SetMark(hControl, 0, m_lpData->lpMap->Pnt[0].x, NO);
	Histo_SetMark(hControl, 1, m_lpData->lpMap->Pnt[1].x, NO);
	Histo_SetMark(hControl, 2, m_lpData->lpMap->Pnt[2].x, NO);
	
	// some people seem to have an update problem here
    ::InvalidateRect (hControl,NULL,FALSE);

	// setup tags
	hControl = ::GetDlgItem(hDlg, IDC_TAGS);
	
	icons[0] = IDC_QUART1;
	icons[1] = IDC_QUART2;
	icons[2] = IDC_QUART3;
	Tag_Init(hControl, 3, 255, &icons[0]);
	
	Tag_SetMark(hControl, 0, m_lpData->lpMap->Pnt[0].x, NO);
	Tag_SetMark(hControl, 1, m_lpData->lpMap->Pnt[1].x, NO);
	Tag_SetMark(hControl, 2, m_lpData->lpMap->Pnt[2].x, NO);
	
	// some people seem to have an update problem here
    ::InvalidateRect (hControl,NULL,FALSE);
	
	set_gradient(IDC_HISTO_GRAD, wChannel);

	// spins
	InitDlgItemSpin(hDlg, IDC_QUART1_VALUE, TO_DISPLAY(m_lpData->lpMap->Pnt[0].x), NO, 0, MAX_SPIN);
	InitDlgItemSpin(hDlg, IDC_QUART3_VALUE, TO_DISPLAY(m_lpData->lpMap->Pnt[2].x), NO, 0, MAX_SPIN);

	if (m_bUseMidPer)
		InitDlgItemSpin(hDlg, IDC_QUART2_VALUE, m_lpData->MidtonePer*100L/255, NO, 0, MAX_SPIN );
	else
 		InitDlgItemSpin(hDlg, IDC_QUART2_VALUE, TO_DISPLAY(m_lpData->lpMap->Pnt[1].x), NO, 0, MAX_SPIN );

	InitDlgItemSpin(hDlg, IDC_MINHIGHLIGHT, TO_DISPLAY(m_lpData->lpMap->Pnt[2].y), NO, 0, MAX_SPIN);
	InitDlgItemSpin(hDlg, IDC_MAXSHADOW, TO_DISPLAY(m_lpData->lpMap->Pnt[0].y), NO, 0, MAX_SPIN);
}