[Qt-interest] QFormLayout memory leak??

[Tony Thompson]

Sorry, I wasn't trying to be rude.  I duplicated my issue by creating a new project that has just one main window.  I used the designer and added a form layout object and two push buttons to the main window.  The two push buttons I hooked to slots.  Here is the code for the slots:

void MainWindow::on_pushButton_clicked()
{
    QFormLayout *form = ui->formLayout;
    for( int i=0; i<4; i++ ) {
        QLineEdit *editor = new QLineEdit();
        QString label( "Test:" );
        form->addRow( new QLabel( label ), editor );
    }
}

void MainWindow::on_pushButton_2_clicked()
{
    QFormLayout *form = ui->formLayout;
    QLayoutItem *child;
    while( (form->count() > 0) && ((child = form->takeAt( 0 )) != 0) ) {
        delete child;
    }
}

I click the first button which adds the elements and the second removes them but they are not removed from the UI.  If I click the first button again, the labels appear to change to bold and become more bold as you click the add and delete buttons.

Thanks for the help.
Tony

-----Original Message-----
From: qt-interest-bounces at trolltech.com [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Andre Somers
Sent: Tuesday, November 17, 2009 3:49 AM
To: Qt-interest
Subject: Re: [Qt-interest] QFormLayout memory leak??

Tony Thompson wrote:
> I delete them as the example shows but they are not removed from the screen.
>
>   
Show us your code then, because claiming there is a bug in Qt without some evidence is rude at best. There are a *lot* of users that use Qt and QFormLayout without having your problem, and while it is possible that you have triggered a bug nobody else has triggered or just spotted it where nobody else did, that is unlikely. The likely cause is in your code, so let's start the analysis there.

André



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