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Viewing changes to enthought/enable/radio_group.py

  • Committer: Bazaar Package Importer
  • Author(s): Varun Hiremath
  • Date: 2011-04-05 21:54:28 UTC
  • mfrom: (1.1.5 upstream)
  • mto: (8.2.1 sid)
  • mto: This revision was merged to the branch mainline in revision 10.
  • Revision ID: james.westby@ubuntu.com-20110405215428-1x2wtubz3ok2kxaq
Tags: upstream-3.4.1
Import upstream version 3.4.1

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enthought/enable/radio_group.py
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#-------------------------------------------------------------------------------
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from enthought.traits.api import HasPrivateTraits, Trait
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#-------------------------------------------------------------------------------
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#  Trait definitions:
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#-------------------------------------------------------------------------------
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# ARadioGroup = Instance( 'RadioGroup' )
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#-------------------------------------------------------------------------------
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#  'RadioStyle' class:
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#-------------------------------------------------------------------------------
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class RadioStyle ( HasPrivateTraits ):
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    #---------------------------------------------------------------------------
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    #  Trait definitions:
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    #---------------------------------------------------------------------------
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#    radio_group = ARadioGroup    
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    #---------------------------------------------------------------------------
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    #  Handle the group the radio style component belongs to being changed: 
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    #---------------------------------------------------------------------------
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#    radio_group = ARadioGroup
 
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    #---------------------------------------------------------------------------
 
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    #  Handle the group the radio style component belongs to being changed:
 
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    #---------------------------------------------------------------------------
 
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    def _group_changed ( self, old, new ):
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        if old is not None:
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            old.remove( self )
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#-------------------------------------------------------------------------------
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class RadioGroup ( HasPrivateTraits ):
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    #---------------------------------------------------------------------------
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    #  Trait definitions:
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    #---------------------------------------------------------------------------
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    # selection = Instance( RadioStyle )
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    selection = Trait(None, RadioStyle)
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    #---------------------------------------------------------------------------
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    #  Handle elements being added to the group: 
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    #---------------------------------------------------------------------------
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    #---------------------------------------------------------------------------
 
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    #  Handle elements being added to the group:
 
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    #---------------------------------------------------------------------------
 
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    def add ( self, *components ):
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        for component in components:
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            component.radio_group = self
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                    component.selected = False
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                else:
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                    self.selection = component
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    #---------------------------------------------------------------------------
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    #  Handle components being removed from the group: 
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    #---------------------------------------------------------------------------
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    #---------------------------------------------------------------------------
 
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    #  Handle components being removed from the group:
 
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    #---------------------------------------------------------------------------
 
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    def remove ( self, *components ):
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        for component in components:
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            if component is self.selection:
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                self.selection is None
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                break
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    #---------------------------------------------------------------------------
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    #  Handle the selection being changed:
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    #---------------------------------------------------------------------------
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    def _selection_changed ( self, old, new ):
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        if old is not None:
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            old.selected = False