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| Dir : //proc/648/root/lib64/python2.7/site-packages/pynche/Switchboard.pyc |
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This class is used to coordinate updates among all Viewers. Every Viewer must
conform to the following interface:
- it must include a method called update_yourself() which takes three
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. 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:
- save_options() which takes an optiondb (a dictionary). Store into this
dictionary any values the Viewer wants to save in the persistent
~/.pynche file. This dictionary is saved using marshal. The namespace
for the keys is ad-hoc; make sure you don't clobber some other Viewer's
keys!
- withdraw() which takes no arguments. This is called when Pynche is
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
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
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
to display the Viewer (one kludge: if the string contains a `%', this is used
to indicate that the next character will get an underline in the menu,
otherwise the first character is underlined).
FooViewer.py should contain a class called FooViewer, and its constructor
should take two arguments, an instance of Switchboard, and optionally a Tk
master window.
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ValueErrort close( t selft initfilet fp( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt __init__3 s, c C s | j j | � d S( N( R t append( R t view( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt add_viewM s c C sF | | _ | | _ | | _ x$ | j D] } | j | | | � q% Wd S( N( R R R R t update_yourself( R t redt greent bluet v( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt update_viewsP s
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