public void read(MC68000InputStream in) throws IOException {
id = in.readLONG();
long length = in.readULONG();
switch (id) {
case ID_CAT:
case ID_FORM:
case ID_LIST:
case ID_PROP:
type = in.readLONG();
length -= 4;
while (length > 1) {
MutableIFFChunk child = new MutableIFFChunk();
child.read(in);
add(child);
int childLength = child.getLength();
length -= childLength + childLength % 2 + 8;
}
break;
default:
data = new byte[(int) length];
in.readFully(data, 0, (int) length);
break;
}
if (length % 2 == 1) {
in.read();
}
}
public int getLength() {
if (data != null) {
return data.length;
} else {
int length = 4;
for (MutableIFFChunk child : childChunks()) {
int childLength = child.getLength();
length += 8 + childLength + childLength % 2;
}
return length;
}
}
public void write(MC68000OutputStream out) throws IOException {
out.writeULONG(id);
long length = getLength();
out.writeULONG(length);
if (data == null) {
out.writeULONG(type);
for (MutableIFFChunk child : childChunks()) {
child.write(out);
}
} else {
out.write(data);
}
if (length % 2 == 1) {
out.write((byte) 0);
}
}
public String dump(int depth) {
StringBuilder buf = new StringBuilder();
for (int i = 0; i < depth; i++) {
buf.append('.');
}
buf.append(idToString(getId()));
buf.append(' ');
buf.append(getLength());
if (getChildCount() > 0) {
buf.append(' ');
buf.append(idToString(getType()));
for (MutableIFFChunk child : childChunks()) {
buf.append('\n');
buf.append(child.dump(depth + 1));
}
}
return buf.toString();
}