#  This software and supporting documentation are distributed by
#      Institut Federatif de Recherche 49
#      CEA/NeuroSpin, Batiment 145,
#      91191 Gif-sur-Yvette cedex
#      France
#
# This software is governed by the CeCILL license version 2 under
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# You can  use, modify and/or redistribute the software under the 
# terms of the CeCILL license version 2 as circulated by CEA, CNRS
# and INRIA at the following URL "http://www.cecill.info". 
#
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from brainvisa.processes import *
import shfjGlobals

name = 'Morphomaths'
userLevel = 0

signature = Signature(
    'Nb_of_morpho_step',     Integer(),
    'file_in',               ReadDiskItem( 'Label Volume',shfjGlobals.anatomistVolumeFormats),
    'file_out',              WriteDiskItem( 'Label Volume',shfjGlobals.anatomistVolumeFormats)
)

def buildNewSignature(self, number):
    paramSignature  = ['Nb_of_morpho_step',Integer()]
    paramSignature  += ['file_in',ReadDiskItem( 'Label Volume',shfjGlobals.anatomistVolumeFormats)]
    paramSignature  += ['file_out',WriteDiskItem( 'Label Volume',shfjGlobals.anatomistVolumeFormats)]
    for i in range(number):
        paramSignature  += ['step'+str(i+1),Choice(('Closing',1),('Opening',2),('Errosion',3),('Dilation',4))]
        paramSignature  += ['radius'+str(i+1), Number()]

    signature = Signature( *paramSignature )
    self.changeSignature( signature )
    
  
def initialization( self ):
    self.addLink( None,'Nb_of_morpho_step', self.buildNewSignature )
    self.Nb_of_morpho_step=1
    
def execution( self, context ):


    for i in range(self.Nb_of_morpho_step):
        if i==0:
            ima_in = self.file_in.fullPath()
            ima_out= self.file_out.fullPath()
        else:
            ima_in = self.file_out.fullPath()
            ima_out= self.file_out.fullPath()
        t = getattr(self,'step'+str(i+1))
        r = getattr(self,'radius'+str(i+1))
        context.runProcess('morphoBasic',
                           type=t,
                           radius=r,
                           image_in=ima_in,
                           image_out=ima_out)