/**
* Reads an array of strings from the TIFF file.
*
* @param count Number of strings to read
* @param value Offset from which to read
*/
protected String[] readASCIIArray(long count, long value) throws IOException {
_raf.seek(value);
int nstrs = 0;
List list = new LinkedList();
byte[] buf = new byte[(int) count];
_raf.read(buf);
StringBuffer strbuf = new StringBuffer();
for (int i = 0; i < count; i++) {
int b = buf[i];
if (b == 0) {
list.add(strbuf.toString());
strbuf.setLength(0);
} else {
strbuf.append((char) b);
}
}
/* We can't use ArrayList.toArray because that returns an
Object[], not a String[] ... sigh. */
String[] strs = new String[nstrs];
ListIterator iter = list.listIterator();
for (int i = 0; i < nstrs; i++) {
strs[i] = (String) iter.next();
}
return strs;
}
/**
* Reads 4 bytes and concatenates them into a String. This pattern is used for ID's of various
* kinds.
*/
public String read4Chars(DataInputStream stream) throws IOException {
StringBuffer sbuf = new StringBuffer(4);
for (int i = 0; i < 4; i++) {
int ch = readUnsignedByte(stream, this);
if (ch != 0) {
sbuf.append((char) ch); // omit nulls
}
}
return sbuf.toString();
}
/**
* Reads a string value from the TIFF file.
*
* @param count Length of string
* @param value Offset of string
*/
protected String readASCII(long count, long value) throws IOException {
_raf.seek(value);
byte[] buffer = new byte[(int) count];
_raf.read(buffer);
StringBuffer sb = new StringBuffer();
for (int i = 0; i < count; i++) {
if (buffer[i] == 0) {
break;
}
sb.append((char) buffer[i]);
}
return sb.toString();
}
