question: private DialogBaseUnits computeDialogBaseUnits ( FontMetrics metrics ) { double averageCharWidth = computeAverageCharWidth ( metrics , averageCharWidthTestString ) ; int ascent = metrics . getAscent ( ) ; double height = ascent > 14 ? ascent : ascent + ( 15 - ascent ) / 3 ; DialogBaseUnits dialogBaseUnits = new DialogBaseUnits ( averageCharWidth , height ) ; if ( LOGGER . isLoggable ( Level . CONFIG ) ) { LOGGER . config ( "Computed dialog base units " + dialogBaseUnits + " for: " + metrics . getFont ( ) ) ; } return dialogBaseUnits ; }
target:  Computes and returns the horizontal dialog base units. Honors the font, font size and resolution.<p> Implementation Note: 14dluY map to 22 pixel for 8pt Tahoma on 96 dpi. I could not yet manage to compute the Microsoft compliant font height. Therefore this method adds a correction value that seems to work well with the vast majority of desktops.<p> TODO: Revise the computation of vertical base units as soon as there are more information about the original computation in Microsoft environments.