private void populateUnitCombo() {
if (comboWidthUnits.getItemCount() != 0) {
return; // this collection is inmutable, only populates the first
// time
}
final Unit<?> defaultUnit = Preferences.bufferUnits();
final Set<Unit<?>> commonLengthUnits = UnitList.getCommonLengthUnits();
SortedMap<String, Unit<?>> units = new TreeMap<String, Unit<?>>();
for (Unit<?> unit : commonLengthUnits) {
units.put(UnitList.getUnitName(unit), unit);
}
bufferUnits = new ArrayList<Unit<?>>(units.values());
int index = 0;
Set<Entry<String, Unit<?>>> unitset = units.entrySet();
for (Entry<String, Unit<?>> entry : unitset) {
String unitName = entry.getKey();
comboWidthUnits.add(unitName, index);
if (defaultUnit.equals(units.get(unitName))) {
comboWidthUnits.select(index);
}
index++;
}
}
@Override
public Measure<String, Q> to(Unit<Q> unit) {
if ((unit == this.unit) || (unit.equals(this.unit))) return this;
return new KnittingMeasure<Q>(stringValue(unit), unit);
}
@Override
public double doubleValue(Unit<Q> unit) {
if ((unit == this.unit) || (unit.equals(this.unit))) return stringToDouble(this.value);
return this.unit.getConverterTo(unit).convert(stringToDouble(this.value));
}
