private function matchUnitAliases($number, $asPrefix, array $unitAliases)
{
$first = true;
foreach ($unitAliases as $unit) {
$unit = $this->numberValue->normalizeUnit($unit);
// Legacy match the preserve some behaviour where spaces where normalized
// no matter what
$normalizedUnit = $this->numberValue->normalizeUnit(str_replace(array(' ', ' ', ' ', ' '), '', $unit));
if ($first) {
$unitid = $unit;
if ($number == 1) {
// add main unit to front of array (displayed first)
$this->mainUnit = $unit;
$this->unitFactors = array($unit => 1) + $this->unitFactors;
} else {
// non-main units are not ordered (can be modified via display units)
$this->unitFactors[$unit] = $number;
}
$first = false;
}
// add all known units to m_unitids to simplify checking for them
$this->unitIds[$unit] = $unitid;
$this->unitIds[$normalizedUnit] = $unitid;
$this->prefixalUnitPreference[$unit] = $asPrefix;
}
}
protected function makeUserValue()
{
$value = false;
if ($this->m_outformat && $this->m_outformat != '-' && $this->m_outformat != '-n' && $this->m_outformat != '-u') {
// first try given output unit
$printunit = SMWNumberValue::normalizeUnit($this->m_outformat);
$this->m_unitin = $this->getUnitID($printunit);
switch ($this->m_unitin) {
case 'K':
$value = $this->m_dataitem->getNumber();
break;
case '°C':
$value = $this->m_dataitem->getNumber() - 273.15;
break;
case '°F':
$value = ($this->m_dataitem->getNumber() - 273.15) * 1.8 + 32;
break;
case '°R':
$value = $this->m_dataitem->getNumber() * 1.8;
break;
// default: unit not supported
}
}
if ($value === false) {
// no valid output unit requested
$value = $this->m_dataitem->getNumber();
$this->m_unitin = 'K';
$printunit = 'K';
}
$this->m_caption = '';
if ($this->m_outformat != '-u') {
// -u is the format for displaying the unit only
$this->m_caption .= $this->m_outformat != '-' && $this->m_outformat != '-n' ? NumberFormatter::getInstance()->getLocalizedFormattedNumber($value, $this->getPrecision()) : NumberFormatter::getInstance()->getUnformattedNumberByPrecision($value, $this->getPrecision());
}
if ($printunit !== '' && $this->m_outformat != '-n') {
// -n is the format for displaying the number only
if ($this->m_outformat != '-u') {
$this->m_caption .= $this->m_outformat != '-' ? ' ' : ' ';
}
$this->m_caption .= $printunit;
}
}
/**
* This method initializes $m_displayunits.
*/
protected function initDisplayData()
{
if ($this->m_displayunits !== false) {
return;
// do the below only once
}
$this->initConversionData();
// needed to normalise unit strings
$this->m_displayunits = array();
if (is_null($this->m_property) || is_null($this->m_property->getDIWikiPage())) {
return;
}
$dataItems = \SMW\StoreFactory::getStore()->getPropertyValues($this->m_property->getDIWikiPage(), new SMWDIProperty('_UNIT'));
$units = array();
foreach ($dataItems as $di) {
// Join all if many annotations exist. Discouraged (random order) but possible.
if ($di instanceof SMWDIBlob) {
$units = $units + preg_split('/\\s*,\\s*/u', $di->getString());
}
}
foreach ($units as $unit) {
$unit = SMWNumberValue::normalizeUnit($unit);
if (array_key_exists($unit, $this->m_unitids)) {
$this->m_displayunits[] = $unit;
// do not avoid duplicates, users can handle this
}
// note: we ignore unsuppported units -- no way to display them
}
}
