static RectF RectFUnion(RectF& r1, RectF& r2) {
if (r2.IsEmptyArea())
return r1;
if (r1.IsEmptyArea())
return r2;
RectF ru;
ru.Union(ru, r1, r2);
return ru;
}
RectF CRender::getGraphExtent(bool selectedOnly) const
{
RectF retVal;
bool first = true;
CComPtr<boost::scoped_lock_ref_counted> lock;
CComPtr<IGraphItem> item;
CComPtr<IUnknown> unk;
CComQIPtr<IListWindowRenderer> lw;
CComQIPtr<ILegacyRenderer> lv;
RectF rc;
IGraphItemVector results;
m_graph->GetChildren(results);
for(IGraphItemVector::iterator itr=results.begin(); itr!=results.end(); ++itr)
{
item=*itr;
CUniqueID id = item->GetID();
unk=item->GetPropertyUnknown(0);
if(unk!=0)
{
lv=unk.p;
if(lv!=0)
{
if (selectedOnly && !lv->IsSelected())
{
continue;
}
if (first)
{
lv->GetTitlePos(retVal);
first = false;
}
else
{
lv->GetTitlePos(rc);
retVal.Union(retVal, retVal, rc);
}
lv->GetIconPos(rc);
retVal.Union(retVal, retVal, rc);
lv->GetImagePos(rc);
retVal.Union(retVal, retVal, rc);
}
else
{
lw=unk.p;
if(lw!=0)
{
if (selectedOnly && !lw->IsSelected())
{
continue;
}
if (first)
{
lw->GetBoundsBox(retVal);
first = false;
}
else
{
lw->GetBoundsBox(rc);
retVal.Union(retVal, retVal, rc);
}
}
}
}
}
return retVal;
}