Problem with QSizeGrip under OSX

  • I wanted to make a QRubberBand instance user resizeable after an initial selection has been made. After tinkering a bit myself with QSizeGrip myself and having no success, I asked a question over on stackoverflow. A kind person answered and then even posted a complete example project: "Implementing resize handles on QRubberband":

    Part of the suggested solution:
    @Resizable_rubber_band::Resizable_rubber_band(QWidget parent) : QWidget(parent) {
    //tell QSizeGrip to resize this widget instead of top-level window
    layout = new QHBoxLayout(this);
    layout->setContentsMargins(0, 0, 0, 0);
    QSizeGrip* grip1 = new QSizeGrip(this);
    QSizeGrip* grip2 = new QSizeGrip(this);
    layout->addWidget(grip1, 0, Qt::AlignLeft | Qt::AlignTop);
    layout->addWidget(grip2, 0, Qt::AlignRight | Qt::AlignBottom);
    rubberband = new QRubberBand(QRubberBand::Rectangle, this);
    rubberband->move(0, 0);

    void Resizable_rubber_band::resizeEvent(QResizeEvent *) {

    The issue is that when I run it (Qt 5.1.1 on OSX) I am still not getting the resize handles. I've searched around and haven't found anything about issues or bugs with QSizeGrip on OSX so I thought I would ask here before I waste more time on this approach. Has anyone used QSizeGrip successfully under OSX? Any glaring issues with the example?

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