Method onHeaderCustomContextMenu

src/downloadlistview.cpp:175–208

}

void DownloadListView::onHeaderCustomContextMenu(const QPoint& point)
{
  QMenu menu;

  // display a list of all headers as checkboxes
  QAbstractItemModel* model = header()->model();
  for (int i = 1; i < model->columnCount(); ++i) {
    QString columnName  = model->headerData(i, Qt::Horizontal).toString();
    QCheckBox* checkBox = new QCheckBox(&menu);
    checkBox->setText(columnName);
    checkBox->setChecked(!header()->isSectionHidden(i));
    QWidgetAction* checkableAction = new QWidgetAction(&menu);
    checkableAction->setDefaultWidget(checkBox);
    menu.addAction(checkableAction);
  }

  menu.exec(header()->viewport()->mapToGlobal(point));

  // view/hide columns depending on check-state
  int i = 1;
  for (const QAction* action : menu.actions()) {
    const QWidgetAction* widgetAction = qobject_cast<const QWidgetAction*>(action);
    if (widgetAction != nullptr) {
      const QCheckBox* checkBox =
          qobject_cast<const QCheckBox*>(widgetAction->defaultWidget());
      if (checkBox != nullptr) {
        header()->setSectionHidden(i, !checkBox->isChecked());
      }
    }
    ++i;
  }

  qobject_cast<DownloadListHeader*>(header())->customResizeSections();
}

void DownloadListView::resizeEvent(QResizeEvent* event)
{