Unexpected behaviour with tab drag on scrollable tab bar #641
Description
Starting from the simple example, if I add multiple dock widgets to the same area, I obtain a long tab bar that can be scrolled. If I scroll to the right, and I try to drag a tab by 1 position (left or right), the tab is not dropped on the mouse position but to what I think is the relative position to the tab bar if I did not scroll it.
ads::CDockAreaWidget *CenterArea = Q_NULLPTR;
for (int i = 0; i < 60; i++)
{
// Create example content label - this can be any application specific
// widget
QLabel* l = new QLabel();
l->setWordWrap(true);
l->setAlignment(Qt::AlignTop | Qt::AlignLeft);
l->setText("Lorem ipsum dolor sit amet, consectetuer adipiscing elit. ");
// Create a dock widget with the title Label 1 and set the created label
// as the dock widget content
ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Label %1").arg(i));
DockWidget->setWidget(l);
// Add the toggleViewAction of the dock widget to the menu to give
// the user the possibility to show the dock widget if it has been closed
ui->menuView->addAction(DockWidget->toggleViewAction());
// Add the dock widget to the center dock widget area
if (!CenterArea)
CenterArea = m_DockManager->addDockWidget(ads::CenterDockWidgetArea, DockWidget);
else
m_DockManager->addDockWidgetTabToArea(DockWidget, CenterArea);
}