collapseAll method
void
collapseAll()
Collapses all unchanged line sections.
Implementation
void collapseAll() {
if (_result == null) return;
for (var i = 0; i < _result!.lines.length; i++) {
if (_result!.lines[i].isUnchanged) {
_collapsedLineIndices.add(i);
}
}
notifyListeners();
}