/**
* Parse the font definition file
*
* @param fntFile The stream from which the font file can be read
* @throws SlickException
*/
private void parseFnt(InputStream fntFile) throws SlickException {
if (displayListCaching) {
baseDisplayListID = GL.glGenLists(DISPLAY_LIST_CACHE_SIZE);
if (baseDisplayListID == 0) displayListCaching = false;
}
try {
// now parse the font file
BufferedReader in = new BufferedReader(new InputStreamReader(fntFile));
String info = in.readLine();
String common = in.readLine();
String page = in.readLine();
Map kerning = new HashMap(64);
List charDefs = new ArrayList(MAX_CHAR);
int maxChar = 0;
boolean done = false;
while (!done) {
String line = in.readLine();
if (line == null) {
done = true;
} else {
if (line.startsWith("chars c")) {
// ignore
} else if (line.startsWith("char")) {
CharDef def = parseChar(line);
if (def != null) {
maxChar = Math.max(maxChar, def.id);
charDefs.add(def);
}
}
if (line.startsWith("kernings c")) {
// ignore
} else if (line.startsWith("kerning")) {
StringTokenizer tokens = new StringTokenizer(line, " =");
tokens.nextToken(); // kerning
tokens.nextToken(); // first
short first = Short.parseShort(tokens.nextToken()); // first value
tokens.nextToken(); // second
int second = Integer.parseInt(tokens.nextToken()); // second value
tokens.nextToken(); // offset
int offset = Integer.parseInt(tokens.nextToken()); // offset value
List values = (List) kerning.get(new Short(first));
if (values == null) {
values = new ArrayList();
kerning.put(new Short(first), values);
}
// Pack the character and kerning offset into a short.
values.add(new Short((short) ((offset << 8) | second)));
}
}
}
chars = new CharDef[maxChar + 1];
for (Iterator iter = charDefs.iterator(); iter.hasNext(); ) {
CharDef def = (CharDef) iter.next();
chars[def.id] = def;
}
// Turn each list of kerning values into a short[] and set on the chardef.
for (Iterator iter = kerning.entrySet().iterator(); iter.hasNext(); ) {
Entry entry = (Entry) iter.next();
short first = ((Short) entry.getKey()).shortValue();
List valueList = (List) entry.getValue();
short[] valueArray = new short[valueList.size()];
int i = 0;
for (Iterator valueIter = valueList.iterator(); valueIter.hasNext(); i++)
valueArray[i] = ((Short) valueIter.next()).shortValue();
chars[first].kerning = valueArray;
}
} catch (IOException e) {
Log.error(e);
throw new SlickException("Failed to parse font file: " + fntFile);
}
}
