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++;
}
}
/** Sets the unit's map in units combobox */
private void selectedMapUnitsActions() {
// gets the units from map and sets the combo with this units
this.currentUnits = getMapUnits();
final String unitName = UnitList.getUnitName(this.currentUnits);
this.comboWidthUnits.setText(unitName);
this.comboWidthUnits.setEnabled(false);
validateParameters();
}
private void selectedLayerUnitsActions(final ILayer layer) {
if (layer == null) {
return;
}
// gets the units from layer and sets the combo with this units
this.currentUnits = getLayerUnits(layer);
final String unitName = UnitList.getUnitName(this.currentUnits);
this.comboWidthUnits.setText(unitName);
this.comboWidthUnits.setEnabled(false);
validateParameters();
}
/** Populates the default options */
@Override
protected final void populate() {
// set default distance
if (this.defaultDistance == null) {
this.defaultDistance = Preferences.bufferWidth();
}
if (this.currentDistance == null) {
this.currentDistance = this.defaultDistance;
}
textBufferWidth.setText(String.valueOf(this.currentDistance));
// sets the units
populateUnitCombo();
if (this.defaultUnits == null) {
// sets the maps units as default
this.defaultUnits = getMapUnits();
}
this.currentUnits = this.defaultUnits;
String unitName = UnitList.getUnitName(this.currentUnits);
comboWidthUnits.setText(unitName);
if (this.defaultRadioUnitOption == null) {
setSelectionUnitOption(this.radioMapUnits);
this.defaultRadioUnitOption = this.radioMapUnits;
} else {
setSelectionUnitOption(this.defaultRadioUnitOption);
}
}
