On Wednesday 30 of September 2009 16:10:35 Aekold Helbrass wrote:

I must honestly say, that I absolutely misunderstood this :)


> On Wed, Sep 30, 2009 at 4:52 PM, Dusan Zatkovsky <[email protected]> wrote:
> > On Wednesday 30 of September 2009 15:43:13 Dusan Zatkovsky wrote:
> >
> > Maybe, what about following idea - start a thread with will repeatelly
> > call QApplication.processEvents() in acceptable interval? Then I should
> > do my job in main thread, show messageboxes etc...
> >
> > What do you think?
>
> No, I don't think it will work. And also amount of work will not be
> much bigger than implementing something similar to SwingWorker.
>
> Idea of SwingWorker:
>
>     private ValueHolder valueHolder;
>     private final Object valueLockObject = new Object();
>
> // assume this is method where your operation begins:
>     private void mainMethod() {
>         QApplication.invokeLater(new WorkerClass());
>         for (int i = 0; i < 666; i++) {
>             int v = 0;
>             // do you calculations here
>             valueHolder.setValue(v);
>         }
>         // to stop events sending:
>         valueHolder = null;
>     }
>
>     private class ValueHolder {
>
>         int value;
>
>         public int getValue() {
>             return value;
>         }
>
>         public void setValue(int value) {
>             this.value = value;
>         }
>
>     }
>
>     private class WorkerClass implements Runnable {
>
>         public void run() {
>             ValueHolder _v;
>             synchronized (valueLockObject) {
>                 if (valueHolder == null) {
>                     return;
>                 }
>                 _v = valueHolder;
>                 valueHolder = new ValueHolder();
>             }
>             // set you progress bar value from here
>             // ...
>
>             // and after you have it - put another executor into events
> loop: QApplication.invokeLater(new WorkerClass());
>         }
>
>     }
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-- 
Dusan


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