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Code: Alles auswählen

void ListView::paintEvent(QPaintEvent * e)
{
       std::cout<<"Paint Event aufrufen\n";
        QListView::paintEvent(e);
}

Code: Alles auswählen

ListView::ListViewt(QWidget * w) :
    QListView()

    setUniformItemSizes(true);
    setSelectionBehavior(QAbstractItemView::SelectItems);
    setSelectionMode(QAbstractItemView::SingleSelection);

    
    this->_popupFrame = new QFrame(0, Qt::Popup);
    this->_popupFrame->setFrameStyle(frameStyle());


    setFrameStyle(QFrame::NoFrame);
    setParent(this->_popupFrame);

    this->_popupFrame->setObjectName("_popupFrame");

    this->_popupFrame->setAttribute(Qt::WA_DeleteOnClose);

    QVBoxLayout *layout = new QVBoxLayout(this->_popupFrame);

    layout->setMargin(0);
    layout->addWidget(this);

    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    this->_popupFrame->setMinimumSize(1,1);
    setStyle(QApplication::style());
    setMinimumSize(1,1);
    this->_model = 0;


}


void ListView::SetItems(QList<CompletionItemStruct> &items)
{

    if(!this->_model)
    {
        this->_model = new AutoCompleteModel(0,items);
        this->setModel(this->_model);

    }
    else
    {
        this->_model->SetItems(items);
    }

    this->setCurrentIndex(this->_model->index(0));
}


void ListView::ShowList(int startPos)
{
    this->UpdatePositionAndSize(startPos);
    this->_popupFrame->show();
    show();
    setFocus();
}


void ListView::CloseList(const QModelIndex &index )
{


    close();
    if (this->_popupFrame)
    {
        this->_popupFrame->close();
        this->_popupFrame = 0;
    }


}

bool ListView:event(QEvent *e)
{
   
    if(e->type() == QEvent::FocusOut)
    {
        this->CloseList();
        return true;
    }
    return QListView::event(e);

}


void ListView::WindowActivated(const QModelIndex &index)
{
   CloseList(index);
}


void ListView::UpdatePositionAndSize(int startPos)
{
    // Kein Relevanter Code

}

void ListView::paintEvent(QPaintEvent *e)
{
    std::cout<<"Probe\n";
    QListView::paintEvent(e);
}

Code: Alles auswählen

#include <QListView>
#include <QStandardItemModel>
#include <QApplication>
#include <QDebug>

class ListView : public QListView {
    void paintEvent(QPaintEvent* e) {
        qDebug() << "ListView::paintEvent()";
        QListView::paintEvent(e);
    }
};

int main(int argc, char** argv) {
    QApplication app(argc, argv);
    ListView view;
    QStandardItemModel model;

    model.appendRow(new QStandardItem("Mamma"));
    model.appendRow(new QStandardItem("Mia"));
    model.appendRow(new QStandardItem("Maccheroni"));
    model.appendRow(new QStandardItem("Marciale"));

    view.setModel(&model);
    view.show();

    return app.exec();
}