/**
* Constructs an {@code AttributedString} from an {@code AttributedCharacterIterator}, which
* represents attributed text.
*
* @param iterator the {@code AttributedCharacterIterator} that contains the text for this
* attributed string.
*/
public AttributedString(AttributedCharacterIterator iterator) {
if (iterator.getBeginIndex() > iterator.getEndIndex()) {
// text.0A=Invalid substring range
throw new IllegalArgumentException(Messages.getString("text.0A")); // $NON-NLS-1$
}
StringBuilder buffer = new StringBuilder();
for (int i = iterator.getBeginIndex(); i < iterator.getEndIndex(); i++) {
buffer.append(iterator.current());
iterator.next();
}
text = buffer.toString();
Set<AttributedCharacterIterator.Attribute> attributes = iterator.getAllAttributeKeys();
if (attributes == null) {
return;
}
attributeMap = new HashMap<Attribute, List<Range>>((attributes.size() * 4 / 3) + 1);
Iterator<Attribute> it = attributes.iterator();
while (it.hasNext()) {
AttributedCharacterIterator.Attribute attribute = it.next();
iterator.setIndex(0);
while (iterator.current() != CharacterIterator.DONE) {
int start = iterator.getRunStart(attribute);
int limit = iterator.getRunLimit(attribute);
Object value = iterator.getAttribute(attribute);
if (value != null) {
addAttribute(attribute, value, start, limit);
}
iterator.setIndex(limit);
}
}
}
/**
* Creates an {@code AttributedString} from the given text and the attributes. The whole text has
* the given attributes applied.
*
* @param value the text to take as base for this attributed string.
* @param attributes the attributes that the text is associated with.
* @throws IllegalArgumentException if the length of {@code value} is 0 but the size of {@code
* attributes} is greater than 0.
* @throws NullPointerException if {@code value} is {@code null}.
*/
public AttributedString(
String value, Map<? extends AttributedCharacterIterator.Attribute, ?> attributes) {
if (value == null) {
throw new NullPointerException();
}
if (value.length() == 0 && !attributes.isEmpty()) {
// text.0B=Cannot add attributes to empty string
throw new IllegalArgumentException(Messages.getString("text.0B")); // $NON-NLS-1$
}
text = value;
attributeMap = new HashMap<Attribute, List<Range>>((attributes.size() * 4 / 3) + 1);
Iterator<?> it = attributes.entrySet().iterator();
while (it.hasNext()) {
Map.Entry<?, ?> entry = (Map.Entry<?, ?>) it.next();
ArrayList<Range> ranges = new ArrayList<Range>(1);
ranges.add(new Range(0, text.length(), entry.getValue()));
attributeMap.put((AttributedCharacterIterator.Attribute) entry.getKey(), ranges);
}
}