Method undoCommand

ElaWidgetTools/ElaActionCommander.cpp:102–132

}

void ElaActionCommander::undoCommand(const QString& domainName)
{
    Q_D(ElaActionCommander);
    if (!d->_commandDomainMap.contains(domainName))
    {
        return;
    }
    auto& commandData = d->_commandDomainMap[domainName];
    if (commandData.undoState == ElaActionCommanderType::UndoInvalid)
    {
        return;
    }
    auto& commandList = commandData.commandList;
    if (commandList.isEmpty())
    {
        return;
    }
    if (commandData.currentIndex == 0)
    {
        commandData.undoState = ElaActionCommanderType::UndoInvalid;
        Q_EMIT commanderStateChanged(domainName, ElaActionCommanderType::UndoInvalid);
    }
    if (commandData.currentIndex == commandList.size() - 1)
    {
        commandData.redoState = ElaActionCommanderType::RedoValid;
        Q_EMIT commanderStateChanged(domainName, ElaActionCommanderType::RedoValid);
    }
    auto command = commandList[commandData.currentIndex];
    command->undo();
    commandData.currentIndex -= 1;
}

void ElaActionCommander::redoCommand(const QString& domainName)
{