/*!
Rescales the key axis of the plottable so the whole plottable is visible.
See \ref rescaleAxes for detailed behaviour.
*/
void QCPAbstractPlottable::rescaleKeyAxis(bool onlyEnlarge) const
{
QCPAxis *keyAxis = mKeyAxis.data();
if (!keyAxis) { qDebug() << Q_FUNC_INFO << "invalid key axis"; return; }
SignDomain signDomain = sdBoth;
if (keyAxis->scaleType() == QCPAxis::stLogarithmic)
signDomain = (keyAxis->range().upper < 0 ? sdNegative : sdPositive);
bool foundRange;
QCPRange newRange = getKeyRange(foundRange, signDomain);
if (foundRange)
{
if (onlyEnlarge)
newRange.expand(keyAxis->range());
if (!QCPRange::validRange(newRange)) // likely due to range being zero (plottable has only constant data in this axis dimension), shift current range to at least center the plottable
{
double center = (newRange.lower+newRange.upper)*0.5; // upper and lower should be equal anyway, but just to make sure, incase validRange returned false for other reason
if (keyAxis->scaleType() == QCPAxis::stLinear)
{
newRange.lower = center-keyAxis->range().size()/2.0;
newRange.upper = center+keyAxis->range().size()/2.0;
} else // scaleType() == stLogarithmic
{
newRange.lower = center/qSqrt(keyAxis->range().upper/keyAxis->range().lower);
newRange.upper = center*qSqrt(keyAxis->range().upper/keyAxis->range().lower);
}
}
keyAxis->setRange(newRange);
}
}
// . dddddddd dddddddd dddddddd dddddddd d = domain hash w/o collection
// . uuuuuuuu uuuuuuuu uuuuuuuu uuuuuuuu u = url hash
// . uuuuuuuu uuuuuuuu uuuuuuuu uuuuuuuu
key_t Catdb::makeKey ( Url *site, bool isDelete ) {
key_t k;
// . get startKey based on "site"'s domain
// . if "site"'s domain is an ip address (non-canonical) then use ip
getKeyRange ( site->isIp() , site , &k , NULL);
// set lower 64 bits of key to hash of this url
k.n0 = hash64 ( site->getUrl() , site->getUrlLen() );
// clear low bit if we're a delete, otherwise set it
if ( isDelete ) k.n0 &= 0xfffffffffffffffeLL;
else k.n0 |= 0x0000000000000001LL;
return k;
}