Subversion Repositories spk

//************************************************************************

//

// LCDManager.cpp

//

// The CLCDManager class is the representation of a "Screen". LCD UI class

// objects are added here.

// 

// Logitech LCD SDK

//

// Copyright 2005 Logitech Inc.

//************************************************************************

#include "LCDManager.h"

//************************************************************************

//

// CLCDManager::CLCDManager

//

//************************************************************************

CLCDManager::CLCDManager(void)

{

    m_dwElapsedTime = 0;

    m_dwExpirationTime = 0;

    m_dwStartTime = 0;

}

//************************************************************************

//

// CLCDManager::~CLCDManager

//

//************************************************************************

CLCDManager::~CLCDManager(void)

{

    Shutdown();

}

//************************************************************************

//

// CLCDManager::Initialize

//

//************************************************************************

HRESULT CLCDManager::Initialize(void)

{

    HRESULT hRes = CLCDCollection::Initialize();

    if(FAILED(hRes))

    {

        LCDUITRACE(_T("CLCDManager::Initialize(): failed to initialize base class.\n"));

        Shutdown();

        return hRes;

    }

    SetOrigin(0, 0);

    SetSize(LGLCD_BMP_WIDTH, LGLCD_BMP_HEIGHT);

    hRes = m_Gfx.Initialize(GetWidth(), GetHeight());

    if(FAILED(hRes))

    {

        LCDUITRACE(_T("CLCDManager::Initialize(): failed to initialize graphics component.\n"));

        Shutdown();

        return hRes;

    }

    return S_OK;

}

//************************************************************************

//

// CLCDManager::Shutdown

//

//************************************************************************

void CLCDManager::Shutdown(void)

{

    m_Gfx.Shutdown();

}

//************************************************************************

//

// CLCDManager::GetLCDScreen

//

//************************************************************************

lgLcdBitmap160x43x1 *CLCDManager::GetLCDScreen(void)

{

    return m_Gfx.GetLCDScreen();

}

//************************************************************************

//

// CLCDManager::GetBitmapInfo

//

//************************************************************************

BITMAPINFO *CLCDManager::GetBitmapInfo(void)

{

    return m_Gfx.GetBitmapInfo();

}

//************************************************************************

//

// CLCDManager::Draw

//

//************************************************************************

HRESULT CLCDManager::Draw(void)

{

    LCDUIASSERT(NULL != m_Gfx.GetHDC());

    LCDUIASSERT(NULL != m_Gfx.GetHBITMAP());

    if((NULL == m_Gfx.GetHDC()) || (NULL == m_Gfx.GetHBITMAP()))

    {

        LCDUITRACE(_T("CLCDManager::Draw(): trying to draw without successful Initialize() first.!\n"));

        return E_FAIL;

    }

    // select our bitmap into the Gfx DC

    m_Gfx.BeginDraw();

    m_Gfx.ClearScreen();

    // invoke LCD UI Elements

    OnDraw(m_Gfx);

    // select it back out of it

    m_Gfx.EndDraw();

    return S_OK;

}

//************************************************************************

//

// CLCDManager::Update

//

//************************************************************************

void CLCDManager::Update(DWORD dwTimestamp)

{

    LCDUIASSERT(m_dwStartTime != 0);

    m_dwElapsedTime = (dwTimestamp - m_dwStartTime);

    CLCDCollection::OnUpdate(dwTimestamp);

}

//************************************************************************

//

// CLCDManager::SetExpiration

//

//************************************************************************

void CLCDManager::SetExpiration(DWORD dwMilliseconds)

{

    m_dwStartTime = GetTickCount();

    m_dwElapsedTime = 0;

    m_dwExpirationTime = dwMilliseconds;

}

//************************************************************************

//

// CLCDManager::HasExpired

//

//************************************************************************

BOOL CLCDManager::HasExpired(void)

{

    return (!m_dwStartTime || (m_dwElapsedTime > m_dwExpirationTime));

}

//************************************************************************

//

// CLCDManager::OnLCDButtonDown

//

//************************************************************************

void CLCDManager::OnLCDButtonDown(int nButton)

{

    UNREFERENCED_PARAMETER(nButton);

}

//************************************************************************

//

// CLCDManager::OnLCDButtonUp

//

//************************************************************************

void CLCDManager::OnLCDButtonUp(int nButton)

{

    UNREFERENCED_PARAMETER(nButton);

}

//** end of LCDManager.cpp ***********************************************