SDst
AMUnitList::AdjustOffsetForHeight(SDst h, bool is_top)
{
if(GetFullViewHeight() > h)
{
const SDst item_h(GetItemHeight());
if(YB_UNLIKELY(item_h == 0))
return 0;
vwList.RestrictSelected();
if(is_top)
return AdjustBottomForHeight(item_h, h);
else
{
const auto d((h + uTopOffset) % item_h);
if(d != 0)
{
const auto tmp(uTopOffset + item_h - d);
uTopOffset = tmp % item_h;
AdjustViewLengthForHeight(item_h, h);
// XXX: Conversion to 'ptrdiff_t' might be implementation-defined.
vwList.IncreaseHead(ptrdiff_t(tmp / item_h), GetTotal());
}
return d;
}
}
return 0;
}
Session::Session(const TextFile& tf)
{
ystdex::ifile_iterator i(*tf.GetPtr());
while(!tf.CheckEOF())
{
if(YB_UNLIKELY(is_undereferenceable(i)))
throw LoggedEvent("Bad Source!", Critical);
llex.ParseByte(*i);
++i;
}
}