pointer is NULL - so that, instead of doing nothing if the user selects
"Edit->Preferences" when there's already a "Preferences" dialog box
open, we raise and de-iconify that window.
Connect the preferences dialog box and any file selection dialog box
opened from its Print tab, so that:
if the preferences dialog box goes away, so does the file
selection dialog box (as it no longer has a text widget into
which it can stuff the selected file name);
if the "File:" button is clicked when there's already a file
selection dialog box open, we just reactivate that existing
dialog box rather than popping up a new one.
Catch the ESC key in the file selection dialog box popped up for the
"File:" button in the Print tab of the Preferences dialog box, and make
it cancel the file selection dialog box.
svn path=/trunk/; revision=1922
- that event happens if, say, you nuke the dialog box from a window
manager - and call "delete" routines for each of the preferences tabs,
so that, for preferences tabs that include list widgets, we can set a
flag on the preferences tab widget telling the selection callback for
the list widget that the buttons it would normally set the sensitivity
of, based on whether any row in the list is selected or not, have Joined
the Choir Invisible, and therefore that we shouldn't change their
sensitivity because GTK+ will whine at us if we do, just as is the case
if we press the "OK" or "Cancel" button (which also cause the window to
go away).
Can we just do this in the "window delete" handler? I.e., does that get
called if we explicitly destroy the widget? Or should we catch a
"destroy" event instead?
(There must be a better way to do this....)
svn path=/trunk/; revision=647
Guy Harris