#-------------------------------------------------------------------------------
#  
#  A concrete base class that implements the IMutableTemplate interface.
#  
#  Written by: David C. Morrill
#  
#  Date: 08/01/2007
#  
#  (c) Copyright 2007 by Enthought, Inc.
#  
#-------------------------------------------------------------------------------

""" A concrete base class that implements the IMutableTemplate interface.
"""

#-------------------------------------------------------------------------------
#  Imports:
#-------------------------------------------------------------------------------

from enthought.traits.api \
    import Event, implements
    
from template_impl \
    import Template
    
from imutable_template \
    import IMutableTemplate
    
#-------------------------------------------------------------------------------
#  'MutableTemplate' class:
#-------------------------------------------------------------------------------

class MutableTemplate ( Template ):
    """ A concrete base class that implements the IMutableTemplate interface.
    """
    
    implements( IMutableTemplate )
    
    #-- IMutableTemplate Interface Implementation ------------------------------
    
    # An event fired when the template mutates (i.e. changes in some way that
    # may affect the number of data sources it exposes, and so on):
    template_mutated = Event