[Qt-interest] QTableWidget continuous updates and gui freeze

[Riccardo Roasio]

This is my code:

--- READING THREAD (rxRoutine)

 tmpLogList=GetMessagesFromDevice();

      for(i=0;i<tmpLogList.length();i++)
      {
         tmpComLogConfig=tmpLogList.at(i);
         logList->AddElement(tmpComLogConfig);
         emit RefreshLogSignal();
     }

-- MAIN THREAD

connect(rxRoutine, SIGNAL(RefreshLogSignal()), this,
SLOT(RefreshComunicationLog()));

void MainWindow::RefreshComunicationLog()
{
    int i;
    logTable->clear();
    logTable->setRowCount(0);
    logTable->setColumnCount(0);

    for(i=0;i<logList->Length();i++)
    {
      logTable->AddNewItem(logList->GetElementAt(i));
    }

    logTable->setColumnWidth(0,400);
    logTable->scrollToBottom();

}

2011/7/14 Bill Crocker <william.crocker at analog.com>:
> Riccardo Roasio wrote:
>> Hi,
>>
>> i have a QTableWidget derived class that receive update events from a
>> thread reading from a serial line.
>> I noticed that on high traffic there are so many updates request thata
>> the gui seems to freeze showing nothing...
>>
>>
>> How can i solve this problem?
>>
>
> Yield the receiving thread.
>
>> Thanks,
>> Riccardo
>> _______________________________________________
>> Qt-interest mailing list
>> Qt-interest at qt.nokia.com
>> http://lists.qt.nokia.com/mailman/listinfo/qt-interest
>>
>
>
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at qt.nokia.com
> http://lists.qt.nokia.com/mailman/listinfo/qt-interest
>