Subversion Repositories spk

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

//

// LCDCollection.cpp

//

// The CLCDCollection class is a generic collection of CLCDBase objects.

// 

// Logitech LCD SDK

//

// Copyright 2005 Logitech Inc.

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

#include "LCDCollection.h"

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

//

// CLCDCollection::CLCDCollection

//

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

CLCDCollection::CLCDCollection(void)

{

}

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

//

// CLCDCollection::~CLCDCollection

//

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

CLCDCollection::~CLCDCollection(void)

{

}

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

//

// CLCDCollection::AddObject

//

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

BOOL CLCDCollection::AddObject(CLCDBase* pObject)

{

    //TODO: handle addition of same object twice...

    m_Objects.push_back(pObject);

    return TRUE;

}

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

//

// CLCDCollection::RemoveObject

//

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

BOOL CLCDCollection::RemoveObject(CLCDBase* pObject)

{

    LCD_OBJECT_LIST::iterator it = m_Objects.begin();

    while(it != m_Objects.end())

    {

        if (*it == pObject)

        {

            m_Objects.erase(it);

            break;

        }

        ++it;

    }

    return FALSE;

}

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

//

// CLCDCollection::OnDraw

//

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

void CLCDCollection::OnDraw(CLCDGfx &rGfx)

{

    LCD_OBJECT_LIST::iterator it = m_Objects.begin();

    while(it != m_Objects.end())

    {

        CLCDBase *pObject = *it;

        LCDUIASSERT(NULL != pObject);

        if (!pObject->IsVisible())

        {

            ++it;

            continue;

        }

        // create the clip region

        HRGN hRgn = CreateRectRgn(pObject->GetOrigin().x, pObject->GetOrigin().y,

                                  pObject->GetOrigin().x + pObject->GetWidth(),

                                  pObject->GetOrigin().y + pObject->GetHeight());

        // ensure that controls only draw within their specified region

        SelectClipRgn(rGfx.GetHDC(), hRgn);

        // free the region (a copy is used in the call above)

        DeleteObject(hRgn);

        // offset the control at its origin so controls use (0,0)

        POINT ptPrevViewportOrg = { 0, 0 };

        SetViewportOrgEx(rGfx.GetHDC(),

                         pObject->GetOrigin().x,

                         pObject->GetOrigin().y,

                         &ptPrevViewportOrg);

        // allow controls to supply additional translation

        // this allows controls to move freely within the confined viewport

        OffsetViewportOrgEx(rGfx.GetHDC(),

                            pObject->GetLogicalOrigin().x,

                            pObject->GetLogicalOrigin().y,

                            NULL);

        pObject->OnDraw(rGfx);

        // set the clipping region to nothing

        SelectClipRgn(rGfx.GetHDC(), NULL);

        // restore the viewport origin

        SetViewportOrgEx(rGfx.GetHDC(),

            ptPrevViewportOrg.x,

            ptPrevViewportOrg.y,

            NULL);

        // restore the viewport origin offset

        OffsetViewportOrgEx(rGfx.GetHDC(), 0, 0, NULL);

        ++it;

    }

}

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

//

// CLCDCollection::OnUpdate

//

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

void CLCDCollection::OnUpdate(DWORD dwTimestamp)

{

    LCD_OBJECT_LIST::iterator it = m_Objects.begin();

    while(it != m_Objects.end())

    {

        CLCDBase *pObject = *it;

        LCDUIASSERT(NULL != pObject);

        pObject->OnUpdate(dwTimestamp);

        ++it;

    }

}

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

//

// CLCDCollection::ResetUpdate

//

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

void CLCDCollection::ResetUpdate(void)

{

    LCD_OBJECT_LIST::iterator it = m_Objects.begin();

    while(it != m_Objects.end())

    {

        CLCDBase *pObject = *it;

        LCDUIASSERT(NULL != pObject);

        pObject->ResetUpdate();

        ++it;

    }

}

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

//

// CLCDCollection::Show

//

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

void CLCDCollection::Show(BOOL bShow)

{

    LCD_OBJECT_LIST::iterator it = m_Objects.begin();

    while(it != m_Objects.end())

    {

        CLCDBase *pObject = *it;

        LCDUIASSERT(NULL != pObject);

        pObject->Show(bShow);

        ++it;

    }

    CLCDBase::Show(bShow);

}

//** end of LCDCollection.cpp ********************************************