API reference

OverlayPresentation

Public types, functions, and constants declared in this header.

void setTransform(QWidget* root, const QTransform& transform): Publish a root-local transform; nonfinite or singular values clear it.
void clearTransform(QWidget* root): Restore the root's ordinary untransformed overlay coordinates.
bool hasTransform(const QWidget* widget): Whether a widget uses a published transform or an embedded scene presentation.
QPoint mapToGlobal(const QWidget* widget, const QPoint& localPoint): Map a local point to displayed global coordinates, or ordinary mapToGlobal.
MenuAnchor menuAnchor(const QMenu* menu): Read the synchronous popupMenu invocation anchor, or an empty anchor.
void popupMenu(QMenu* menu, QWidget* source, const QPoint& localPoint, const QPoint& offset = QPoint()): Map before QMenu screen containment; the optional offset stays untransformed.