// convert value in other unit to this unit
public float toUnit(TeXParser parser, float value, TeXUnit otherUnit) throws TeXSyntaxException {
if (equals(otherUnit)) {
return value;
}
if (otherUnit.equals(FixedUnit.PT)) {
return value / parser.getListener().emToPt(1f);
}
return otherUnit.toPt(parser, value) / parser.getListener().emToPt(1f);
}
// convert value in this unit to other unit
public float fromUnit(TeXParser parser, float value, TeXUnit otherUnit)
throws TeXSyntaxException {
if (equals(otherUnit)) {
return value;
}
if (otherUnit.equals(FixedUnit.PT)) {
return parser.getListener().emToPt(value);
}
return otherUnit.fromPt(parser, parser.getListener().emToPt(value));
}
public void process(TeXParser parser) throws IOException {
parser.getListener().getWriteable().write("em");
}
public float fromPt(TeXParser parser, float value) throws TeXSyntaxException {
return value / parser.getListener().emToPt(1f);
}
public float toPt(TeXParser parser, float value) throws TeXSyntaxException {
return parser.getListener().emToPt(value);
}
public TeXObjectList string(TeXParser parser) throws IOException {
TeXObjectList list = new TeXObjectList();
list.add(parser.getListener().getOther((int) parser.getTabChar()));
return list;
}