void redo() {
if (_redoStack.empty()) {
rMessage() << "Redo: no redo available" << std::endl;
}
else {
Operation* operation = _redoStack.back();
rMessage() << "Redo: " << operation->_command << std::endl;
startUndo();
trackersRedo();
operation->_snapshot.restore();
finishUndo(operation->_command);
_redoStack.pop_back();
for (Observers::iterator i = _observers.begin(); i != _observers.end(); /* in-loop */) {
Observer* observer = *(i++);
observer->postRedo();
}
// Trigger the onPostUndo event on all scene nodes
PostRedoWalker walker;
GlobalSceneGraph().root()->traverse(walker);
GlobalSceneGraph().sceneChanged();
}
}
// greebo: This finishes the current operation and
// removes it instantly from the stack
void cancel() {
// Try to add the last operation as "temp"
if (finishUndo("$TEMPORARY")) {
// Instantly remove the added operation
_undoStack.pop_back();
}
}