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Where possible you should think about tooltips--those small popup
frames that appear while you hover the mouse over some item and
contain useful information about the item. Tooltips provide the basic
reminders that help the user ignore the application's written
documentation. Tooltips should be just a little verbose, perhaps
taking up 3 or 4 lines of text. Aim to inform with the minimum number
of words.
You add tooltips to widgets by first selecting the widget. Select the
text area of your fileentry1 widget--this will select
something called combo-entry1 which is contained within the
Gnome File Entry widget. Then in the Properties
window click on the Basic tab. On that page you will see the
Tooltip text entry about halfway down. Simply type in the
required text, such as:
Name of the file whose contents is to be counted.
Now hover the mouse over the file entry field on your canvas and the
tooltip should pop up.
An interesting question is whether the tooltip should be associated
with the file entry field as we have done or with the label of the
field, or both? The answer is left as an exercise for the reader! We
prefer to associate the tooltip with just the entry field itself since
that is where the mouse will be hovering while you are thinking about
it. On the other-hand Glade's own interface associates the tooltips
with the labels.
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