The ::map signal is emitted when @widget is going to be mapped, that is
when the widget is visible (which is controlled with
gtk_widget_set_visible()) and all its parents up to the toplevel widget
are also visible. Once the map has occurred, #GtkWidget::map-event will
be emitted.
The ::map signal can be used to determine whether a widget will be drawn,
for instance it can resume an animation that was stopped during the
emission of #GtkWidget::unmap.
The ::map signal is emitted when @widget is going to be mapped, that is when the widget is visible (which is controlled with gtk_widget_set_visible()) and all its parents up to the toplevel widget are also visible. Once the map has occurred, #GtkWidget::map-event will be emitted.
The ::map signal can be used to determine whether a widget will be drawn, for instance it can resume an animation that was stopped during the emission of #GtkWidget::unmap.