public void pack() {
boolean changed;
do {
changed = false;
for (Row<T> r : this) {
changed |= r.tryInterleaveWith(r.getPrevRow());
}
// System.out.println();
for (Row<T> r : this) {
changed |= r.tryInterleaveWith(r.getNextRow());
}
// System.out.println();
} while (changed);
}
public boolean isInterleaveableWith(Row<T> other) {
if (other == null || other == this) {
return false;
} else if (other.getNextRow() != this && other.getPrevRow() != this) {
return false;
}
Iterator<Cell<T>> oIt = other.iterator();
for (Cell<T> c : this) {
if (oIt.next().isUnpackable() && c.isUnpackable()) {
return false;
}
}
return true;
}