void start() {
_redoStack.clear();
if (_undoStack.size() == _undoLevels) {
_undoStack.pop_front();
}
startUndo();
trackersBegin();
}
// Sets the size of the undoStack
void setLevels(std::size_t levels) {
if (levels > MAX_UNDO_LEVELS) {
levels = MAX_UNDO_LEVELS;
}
while (_undoStack.size() > levels) {
_undoStack.pop_front();
}
_undoLevels = levels;
}
QStringList UndoManager::getLastFromStack( int count, UndoStack & stack )
{
QStringList ret;
for( int i = stack.size() - 1; i >= 0 && count > 0; i--, count-- )
{
UndoBlock * ub = stack[i];
QString ttl = ub->title();
ret += ttl.isEmpty() ? "Unknown Operation" : ttl;
}
return ret;
}
std::size_t size() const {
return _undoStack.size();
}