Method exec

src/backend/core/AbstractAspect.cpp:1017–1034

* \brief Execute the given command, pushing it on the undoStack() if available. */

 * \brief Execute the given command, pushing it on the undoStack() if available.
 */
void AbstractAspect::exec(QUndoCommand* cmd) {
	Q_CHECK_PTR(cmd);
	if (d->m_undoAware && (project() && project()->isUndoAware())) {
		auto* stack = undoStack();
		if (stack)
			stack->push(cmd);
		else {
			cmd->redo();
			delete cmd;
		}

		if (project())
			setProjectChanged(true);
	} else {
		cmd->redo();
		delete cmd;
	}
}

/**
 * \brief Execute command and arrange for signals to be sent before/after it is redone or undone.