/**
* ************************************************************************ Return a Iterator with
* only the relevant attributes. Fixes implementation in AttributedString, which returns
* everything
*
* @param aString attributed string
* @param relevantAttributes relevant attributes
* @return iterator
*/
public static AttributedCharacterIterator getIterator(
AttributedString aString, AttributedCharacterIterator.Attribute[] relevantAttributes) {
AttributedCharacterIterator iter = aString.getIterator();
Set set = iter.getAllAttributeKeys();
// System.out.println("AllAttributeKeys=" + set);
if (set.size() == 0) return iter;
// Check, if there are unwanted attributes
Set<AttributedCharacterIterator.Attribute> unwanted =
new HashSet<AttributedCharacterIterator.Attribute>(iter.getAllAttributeKeys());
for (int i = 0; i < relevantAttributes.length; i++) unwanted.remove(relevantAttributes[i]);
if (unwanted.size() == 0) return iter;
// Create new String
StringBuffer sb = new StringBuffer();
for (char c = iter.first(); c != AttributedCharacterIterator.DONE; c = iter.next())
sb.append(c);
aString = new AttributedString(sb.toString());
// copy relevant attributes
Iterator it = iter.getAllAttributeKeys().iterator();
while (it.hasNext()) {
AttributedCharacterIterator.Attribute att = (AttributedCharacterIterator.Attribute) it.next();
if (!unwanted.contains(att)) {
for (char c = iter.first(); c != AttributedCharacterIterator.DONE; c = iter.next()) {
Object value = iter.getAttribute(att);
if (value != null) {
int start = iter.getRunStart(att);
int limit = iter.getRunLimit(att);
// System.out.println("Attribute=" + att + " Value=" + value + " Start=" + start + "
// Limit=" + limit);
aString.addAttribute(att, value, start, limit);
iter.setIndex(limit);
}
}
}
// else
// System.out.println("Unwanted: " + att);
}
return aString.getIterator();
} // getIterator
