arguments; the red, green, and blue values of the selected color.
- When a Viewer selects a color and wishes to update all other Views, it
- should call update_views() on the Switchboard object. Not that the
- Viewer typically does *not* update itself before calling update_views(),
+ should call update_views() on the Switchboard object. Note that the
+ Viewer typically does *not* update itself before calling update_views(),
since this would cause it to get updated twice.
Optionally, Viewers can also implement:
unmapped. All Viewers should implement this.
- colordb_changed() which takes a single argument, an instance of
- ColorDB. This is called whenever the color name database is changed and
+ ColorDB. This is called whenever the color name database is changed and
gives a chance for the Viewers to do something on those events. See
ListViewer for details.
-External Viewers are found dynamically. Viewer modules should have names such
+External Viewers are found dynamically. Viewer modules should have names such
as FooViewer.py. If such a named module has a module global variable called
ADDTOVIEW and this variable is true, the Viewer will be added dynamically to
the `View' menu. ADDTOVIEW contains a string which is used as the menu item
try:
fp = open(initfile)
self.__optiondb = marshal.load(fp)
- if type(self.__optiondb) <> DictType:
+ if not isinstance(self.__optiondb, DictType):
print >> sys.stderr, \
'Problem reading options from file:', initfile
self.__optiondb = {}