Sets whether the progress bar will show text next to the bar.
The shown text is either the value of the [property@Gtk.ProgressBar:text]
property or, if that is %NULL, the [property@Gtk.ProgressBar:fraction] value,
as a percentage.
To make a progress bar that is styled and sized suitably for containing
text (even if the actual text is blank), set [property@Gtk.ProgressBar:show-text]
to %TRUE and [property@Gtk.ProgressBar:text] to the empty string (not %NULL).
Sets whether the progress bar will show text next to the bar.
The shown text is either the value of the [property@Gtk.ProgressBar:text] property or, if that is %NULL, the [property@Gtk.ProgressBar:fraction] value, as a percentage.
To make a progress bar that is styled and sized suitably for containing text (even if the actual text is blank), set [property@Gtk.ProgressBar:show-text] to %TRUE and [property@Gtk.ProgressBar:text] to the empty string (not %NULL).