Drop on table and widget

[core_st]

Hi! I have Widget MainWindow and tableWidget in MainWindow. tableWidget is placed in the center of MainWindow. I need drop audio-files on Main Window. If i drop files to MainWindow then do such function, if i drop files on table - do another function. Can you help me?

i try to realize drop on mainWindow:
in header:

void dragEnterEvent (QDragEnterEvent *pe){
        if (pe->mimeData()->hasFormat("text/uri-list")){
        pe->acceptProposedAction();
        }
    }
    void dropEvent (QDropEvent* pe);

void dragEnterEvent (QDragEnterEvent *pe){
        if (pe->mimeData()->hasFormat("text/uri-list")){
        pe->acceptProposedAction();
        }
    }
    void dropEvent (QDropEvent* pe);

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in constructor

setAcceptDrops(true);

setAcceptDrops(true);

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and

void MainWindow::dropEvent(QDropEvent *pe){
        QList<QUrl> urlList=pe->mimeData()->urls();
        QStringList str;
        foreach (QUrl url, urlList ){
        str<<url.toString();
        QMessageBox::information(this,"yeah",url.toString());
        }
  //   Some function with str
    }

void MainWindow::dropEvent(QDropEvent *pe){
        QList<QUrl> urlList=pe->mimeData()->urls();
        QStringList str;
        foreach (QUrl url, urlList ){
        str<<url.toString();
        QMessageBox::information(this,"yeah",url.toString());
        }
  //   Some function with str
    }

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But i have crash on drop.