www.pudn.com > AudioVideoCapture.rar > CAudioSourcePage.cpp


// CAudioSourcePage.cpp : implementation file
//

#include "stdafx.h"
#include "avcap.h"
#include "CAudioSourcePage.h"

#include "CLiveCapture.h"
#include "CLiveInputFilters.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAudioSourcePage dialog


CAudioSourcePage::CAudioSourcePage(CWnd* pParent /*=NULL*/)
: CDialog(CAudioSourcePage::IDD, pParent)
{
//{{AFX_DATA_INIT(CAudioSourcePage)
mMixLevel = 0;
//}}AFX_DATA_INIT
mLiveCapture = NULL;
}

void CAudioSourcePage::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAudioSourcePage)
DDX_Control(pDX, IDC_SLIDER_MIX_LEVEL, mSliderMixLevel);
DDX_Control(pDX, IDC_COMBO_AUDIO_CONNECTOR, mComboConnectors);
DDX_Text(pDX, IDC_EDIT_MIX_LEVEL, mMixLevel);
//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CAudioSourcePage, CDialog)
//{{AFX_MSG_MAP(CAudioSourcePage)
ON_WM_HSCROLL()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAudioSourcePage message handlers
void CAudioSourcePage::SetLiveCapture(CLiveCapture * inData)
{
mLiveCapture = inData;
}

void CAudioSourcePage::SetInputFilters(CLiveInputFilters * inFilters)
{
mInputFilters = inFilters;
}

BOOL CAudioSourcePage::OnInitDialog()
{
CDialog::OnInitDialog();

// TODO: Add extra initialization here
ASSERT(mLiveCapture);

FillConnectors();
InitMixLevelSlider();

return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}

void CAudioSourcePage::FillConnectors(void)
{
mComboConnectors.ResetContent();

if (mInputFilters)
{
long count = mInputFilters->GetAudioConnectorCount();
for (long i = 0; i < count; i++)
{
CString connector = mInputFilters->GetAudioConnectorName(i);
mComboConnectors.AddString(connector);
}

if (count > 0)
{
mComboConnectors.SetCurSel(mLiveCapture->GetAudioConnector());
}
else
{
mComboConnectors.EnableWindow(FALSE);
}
}
}

void CAudioSourcePage::InitMixLevelSlider(void)
{
mSliderMixLevel.SetRange(0, 100);

mMixLevel = int(mLiveCapture->GetAudioMixLevel() * 100);
mSliderMixLevel.SetPos(mMixLevel);
UpdateData(FALSE);
}

void CAudioSourcePage::EnterConnector(void)
{
int index = mComboConnectors.GetCurSel();
if (index != CB_ERR)
{
mLiveCapture->SetAudioConnector(index);
}
}

void CAudioSourcePage::EnterMixLevel(void)
{
mLiveCapture->SetAudioMixLevel(mMixLevel/100.);
}

void CAudioSourcePage::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
if (pScrollBar->GetSafeHwnd() == mSliderMixLevel.GetSafeHwnd())
{
mMixLevel = mSliderMixLevel.GetPos();
UpdateData(FALSE);
}

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

void CAudioSourcePage::OnOK()
{
EnterConnector();
EnterMixLevel();

CDialog::OnOK();
}