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LCDCollection.cpp
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233 lines (184 loc) · 6.42 KB
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//************************************************************************
// The Logitech LCD SDK, including all acompanying documentation,
// is protected by intellectual property laws. All use of the Logitech
// LCD SDK is subject to the License Agreement found in the
// "Logitech LCD SDK License Agreement" file and in the Reference Manual.
// All rights not expressly granted by Logitech are reserved.
//************************************************************************
//************************************************************************
//
// LCDCollection.cpp
//
// Holds a collection of base items. Its draw will draw everything
// in its list.
//
// Logitech LCD SDK
//
// Copyright 2010 Logitech Inc.
//************************************************************************
#include "LCDUI.h"
//************************************************************************
//
// CLCDCollection::CLCDCollection
//
//************************************************************************
CLCDCollection::CLCDCollection(void)
{
}
//************************************************************************
//
// CLCDCollection::~CLCDCollection
//
//************************************************************************
CLCDCollection::~CLCDCollection(void)
{
}
//************************************************************************
//
// CLCDCollection::GetObjectCount
//
//************************************************************************
int CLCDCollection::GetObjectCount(void)
{
return (int)m_Objects.size();
}
//************************************************************************
//
// CLCDCollection::AddObject
//
//************************************************************************
bool CLCDCollection::AddObject(CLCDBase* pObject)
{
m_Objects.push_back(pObject);
return true;
}
//************************************************************************
//
// CLCDCollection::RemoveObject
//
//************************************************************************
bool CLCDCollection::RemoveObject(CLCDBase* pObject)
{
LCD_OBJECT_LIST::iterator it =
std::find(m_Objects.begin(), m_Objects.end(), pObject);
if(it != m_Objects.end())
{
m_Objects.erase(it);
return true;
}
return false;
}
//************************************************************************
//
// CLCDCollection::RemoveObject
//
//************************************************************************
bool CLCDCollection::RemoveObject(int objpos)
{
if(!m_Objects.empty())
{
if((0 <= objpos) && (objpos < (int) m_Objects.size()))
{
m_Objects.erase(m_Objects.begin() + objpos);
return true;
}
}
return false;
}
//************************************************************************
//
// CLCDCollection::RemoveAll
//
//************************************************************************
void CLCDCollection::RemoveAll()
{
m_Objects.clear();
}
//************************************************************************
//
// CLCDCollection::RetrieveObject
//
//************************************************************************
CLCDBase* CLCDCollection::RetrieveObject(int objpos)
{
if(!m_Objects.empty())
{
if((0 <= objpos) && (objpos < (int) m_Objects.size()))
{
return m_Objects[objpos];
}
}
return NULL;
}
//************************************************************************
//
// CLCDCollection::OnDraw
//
//************************************************************************
void CLCDCollection::OnDraw(CLCDGfxBase &rGfx)
{
if(!IsVisible())
{
return;
}
//iterate through your objects and draw them
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it++;
LCDUIASSERT(NULL != pObject);
if (pObject->IsVisible())
{
pObject->OnPrepareDraw(rGfx);
// 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);
}
}
}
//************************************************************************
//
// CLCDCollection::OnUpdate
//
//************************************************************************
void CLCDCollection::OnUpdate(DWORD dwTimestamp)
{
//iterate through your objects and update them
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it++;
LCDUIASSERT(NULL != pObject);
pObject->OnUpdate(dwTimestamp);
}
//and update yourself
CLCDBase::OnUpdate(dwTimestamp);
}
//** end of LCDCollection.cpp ********************************************