/**
* Replaces the part between <code>from</code> (inclusive) and <code>to</code> (inclusive) with
* the other list's part between <code>otherFrom</code> and <code>otherTo</code>. Powerful (and
* tricky) method! Both parts need not be of the same size (part A can both be smaller or larger
* than part B). Parts may overlap. Receiver and other list may (but most not) be identical. If
* <code>from > to</code>, then inserts other part before <code>from</code>.
*
* @param from the first element of the receiver (inclusive)
* @param to the last element of the receiver (inclusive)
* @param other the other list (may be identical with receiver)
* @param otherFrom the first element of the other list (inclusive)
* @param otherTo the last element of the other list (inclusive)
* <p><b>Examples:</b>
* <pre>
* a=[0, 1, 2, 3, 4, 5, 6, 7]
* b=[50, 60, 70, 80, 90]
* a.R(...)=a.replaceFromToWithFromTo(...)
*
* a.R(3,5,b,0,4)-->[0, 1, 2, 50, 60, 70, 80, 90, 6, 7]
* a.R(1,6,b,0,4)-->[0, 50, 60, 70, 80, 90, 7]
* a.R(0,6,b,0,4)-->[50, 60, 70, 80, 90, 7]
* a.R(3,5,b,1,2)-->[0, 1, 2, 60, 70, 6, 7]
* a.R(1,6,b,1,2)-->[0, 60, 70, 7]
* a.R(0,6,b,1,2)-->[60, 70, 7]
* a.R(5,3,b,0,4)-->[0, 1, 2, 3, 4, 50, 60, 70, 80, 90, 5, 6, 7]
* a.R(5,0,b,0,4)-->[0, 1, 2, 3, 4, 50, 60, 70, 80, 90, 5, 6, 7]
* a.R(5,3,b,1,2)-->[0, 1, 2, 3, 4, 60, 70, 5, 6, 7]
* a.R(5,0,b,1,2)-->[0, 1, 2, 3, 4, 60, 70, 5, 6, 7]
*
* Extreme cases:
* a.R(5,3,b,0,0)-->[0, 1, 2, 3, 4, 50, 5, 6, 7]
* a.R(5,3,b,4,4)-->[0, 1, 2, 3, 4, 90, 5, 6, 7]
* a.R(3,5,a,0,1)-->[0, 1, 2, 0, 1, 6, 7]
* a.R(3,5,a,3,5)-->[0, 1, 2, 3, 4, 5, 6, 7]
* a.R(3,5,a,4,4)-->[0, 1, 2, 4, 6, 7]
* a.R(5,3,a,0,4)-->[0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 5, 6, 7]
* a.R(0,-1,b,0,4)-->[50, 60, 70, 80, 90, 0, 1, 2, 3, 4, 5, 6, 7]
* a.R(0,-1,a,0,4)-->[0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 5, 6, 7]
* a.R(8,0,a,0,4)-->[0, 1, 2, 3, 4, 5, 6, 7, 0, 1, 2, 3, 4]
* </pre>
*/
public void replaceFromToWithFromTo(
int from, int to, ObjectArrayList other, int otherFrom, int otherTo) {
if (otherFrom > otherTo) {
throw new IndexOutOfBoundsException("otherFrom: " + otherFrom + ", otherTo: " + otherTo);
}
if (this == other && to - from != otherTo - otherFrom) { // avoid stumbling over my own feet
replaceFromToWithFromTo(from, to, partFromTo(otherFrom, otherTo), 0, otherTo - otherFrom);
return;
}
int length = otherTo - otherFrom + 1;
int diff = length;
int theLast = from - 1;
// System.out.println("from="+from);
// System.out.println("to="+to);
// System.out.println("diff="+diff);
if (to >= from) {
diff -= (to - from + 1);
theLast = to;
}
if (diff > 0) {
beforeInsertDummies(theLast + 1, diff);
} else {
if (diff < 0) {
removeFromTo(theLast + diff, theLast - 1);
}
}
if (length > 0) {
System.arraycopy(other.elements, otherFrom, elements, from, length);
}
}
