# -*- coding: utf-8 -*-
#  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
# French law and abiding by the rules of distribution of free software.
# 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". 
#
# As a counterpart to the access to the source code and  rights to copy,
# modify and redistribute granted by the license, users are provided only
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# economic rights,  and the successive licensors  have only  limited
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# software by the user in light of its specific status of free software,
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from brainvisa.processes import *
from brainvisa import anatomist

name = 'Anatomist Show Bundles'
roles = ( 'viewer', )
userLevel = 0

signature = Signature(
  'bundles', ReadDiskItem( 'Bundles', 'Aims Bundles' ),
  'rgb_eigenvector', ReadDiskItem( 'RGB Eigenvector', 'Aims readable volume formats'),
  'width', Float(),
  'minimum_length', Float(),
  'save_result', Boolean(),
  'bundles_graph', WriteDiskItem( 'Curves graph', 'Graph and data' ),
)

def validation():
  anatomist.validation()


def stringParameters( **kwargs ):
  return str( kwargs )

def initialization( self ):
  self.width = 0
  self.minimum_length = 0
  self.save_result = 0
  self.linkParameters( 'bundles_graph', 'bundles' )
  self.linkParameters('rgb_eigenvector', 'bundles' )
  self.setOptional( 'bundles_graph' )
  self.setOptional("rgb_eigenvector")

def execution( self, context ):
  if self.save_result:
    bundles_graph = self.bundles_graph
    if bundles_graph is None:
      raise RuntimeError( _t_( 'No value for <em>%s</em>') % ('bundles_graph') )
  else:
    bundles_graph = context.temporary( 'Graph and data' )
  command = [ 'comistBundleAnalysis_old',
    '-i', self.bundles,
    '-g', bundles_graph.fullPath() + stringParameters( width = self.width,
      minimum_length = self.minimum_length )
  ]
  context.system( *command )
  a = anatomist.Anatomist()
  bundles_object = a.loadObject( bundles_graph.fullPath() )
  # Set 50% transparency on the bundles without lighting
  bundles_object.setMaterial( a.Material( diffuse=[0, 0, 0.8, 0.5], lighting=0 ) )
  window = a.createWindow( '3D' )
  browser = a.createWindow( 'Browser' )
  rgb_object=None
  if self.rgb_eigenvector:
    rgb_object=a.loadObject( self.rgb_eigenvector)
    ref=rgb_object.referential
    if ref != a.centralRef:
      bundles_object.assignReferential(ref)
      window.assignReferential(ref)
    window.addObjects(rgb_object)

  a.addObjects( windows=( window, browser ), objects=( bundles_object, ) )
  # Select all nodes of bundles_object to make fibers visible
  objects_to_select=bundles_object.children
  window.group.addToSelection( objects_to_select )
  # Unselect objects to give them their real color
  window.group.unSelect( objects_to_select )
  return ( bundles_object, bundles_graph, window, browser, rgb_object )