int CLCDStreamingText::AddText(LPCTSTR szText)
{
CLCDText* pText = new CLCDText;
pText->Initialize();
pText->SetText(szText);
pText->SetOrigin(GetOrigin().x, GetOrigin().y);
pText->SetLogicalOrigin(GetLogicalOrigin().x, GetLogicalOrigin().y);
pText->SetSize(GetWidth(), GetHeight());
pText->SetBackgroundMode(OPAQUE);
LOGFONT lf;
GetObject(m_hFont, sizeof(LOGFONT), &lf);
pText->SetFont(lf);
m_bRecalcExtent = TRUE;
m_Objects.push_back(pText);
if (NULL == m_pQueueHead)
{
m_pQueueHead = pText;
}
// return the zero-based index
return (int)(m_Objects.size()-1);
}
BOOL CLCDStreamingText::RecalcTextBoxes(CLCDGfx &rGfx)
{
// check if we need to add another text box
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
if (it == m_Objects.end())
return FALSE;
CLCDBase* pObject = *it;
CLCDText* pText = (CLCDText*)pObject;
assert(NULL != pObject);
LOGFONT lf;
GetObject(m_hFont, sizeof(LOGFONT), &lf);
pText->SetFont(lf);
// this will re-evaluate the main text object
assert(m_Objects.size() == 1);
CLCDCollection::OnDraw(rGfx);
if (it != m_Objects.end())
{
if (pText->GetHExtent().cx > GetWidth())
{
pText->SetAlignment(DT_LEFT);
// add a gap
AddText(m_szGapText);
// add another text
AddText(m_szText);
// add last gap
AddText(m_szGapText);
}
else
{
pText->SetAlignment(m_nTextAlignment);
}
}
// this will re-evaluate the other text objects
CLCDCollection::OnDraw(rGfx);
RecalcTextBoxOrigins();
return TRUE;
}
