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� f �Qc @ sE d Z d d l Z d d l m Z d d l Z d d d � � YZ d S( s� Switchboard class. 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. i����N( t DictTypet Switchboardc B sw e Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d d � Z d � Z RS( c C s� | | _ d | _ i | _ g | _ d | _ d | _ d | _ d | _ d } | r� zt yS t | � } t j | � | _ t | j t � s� t j d I| IJi | _ n Wn t t t f k r� n XWd | r� | j � n Xn d S( Ni s" Problem reading options from file:( t _Switchboard__initfilet Nonet _Switchboard__colordbt _Switchboard__optiondbt _Switchboard__viewst _Switchboard__redt _Switchboard__greent _Switchboard__bluet _Switchboard__canceledt opent marshalt loadt isinstanceR t syst stderrt IOErrort EOFErrort 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 c C s | j | j | j | j � d S( N( R! R R R ( R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt update_views_currentW s c C s | j | j | j f S( N( R R R ( R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt current_rgbZ s c C s | j S( N( R ( R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt colordb] s c C sJ | | _ x0 | j D]% } t | d � r | j | � q q W| j � d S( Nt colordb_changed( R R t hasattrR% R" ( R R$ R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt set_colordb` s c C s | j S( N( R ( R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt optiondbg s c C s� | j | j d <| j | j d <| j | j d <x3 | j D]( } t | d � r: | j | j � q: q: W| j j � | j d <d } zW y t | j d � } Wn' t k r� t j d I| j IJn Xt j | j | � Wd | r� | j � n Xd S( Nt REDt GREENt BLUEt save_optionst DBFILEt ws Cannot write options to file:( R R R R R R& R, R t filenameR R R R R R R t dumpR ( R R R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt save_viewsj s" c C s4 x- | j D]" } t | d � r | j � q q Wd S( Nt withdraw( R R& R2 ( R R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt withdraw_views� s i c C s | | _ d S( N( R ( R t flag( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt canceled� s c C s | j S( N( R ( R ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt canceled_p� s ( t __name__t __module__R R R! R" R# R$ R' R( R1 R3 R5 R6 ( ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyR 2 s ( ( t __doc__R t typesR R R ( ( ( s8 /usr/lib64/python2.7/site-packages/pynche/Switchboard.pyt <module>* s