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);
}
}
}
void CLCDPage::OnDraw(CLCDGfxBase &rGfx)
{
if(!IsVisible())
{
return;
}
//Draw the background first
if(m_bUseBitmapBackground)
{
m_Background.OnDraw(rGfx);
}
else if(m_bUseColorBackground)
{
HBRUSH hBackBrush = CreateSolidBrush(m_BackgroundColor);
HBRUSH hOldBrush = (HBRUSH)SelectObject(rGfx.GetHDC(), hBackBrush);
Rectangle(rGfx.GetHDC(), 0, 0, GetWidth(), GetHeight());
SelectObject(rGfx.GetHDC(), hOldBrush);
DeleteObject(hBackBrush);
}
//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())
{
// create the clip region
// Note that pages can now be added to pages (GetOrigin of the page is now factored in)
HRGN hRgn = CreateRectRgn(GetOrigin().x + pObject->GetOrigin().x, GetOrigin().y + pObject->GetOrigin().y,
GetOrigin().x + pObject->GetOrigin().x + pObject->GetWidth(),
GetOrigin().y + 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(),
GetOrigin().x + pObject->GetOrigin().x,
GetOrigin().y + 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);
}
}
}
