# -*- 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".
#
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from brainvisa.processes import *
from brainvisa import anatomist

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

def validation():
    anatomist.validation()

signature = Signature(
    'read', ReadDiskItem( 'Texture', 'Anatomist texture formats' ),
    'mesh', ReadDiskItem( 'Mesh', 'Anatomist mesh formats' ),
    'rgb_interpolation', Boolean(),
    'palette', String(),
)


def initialization( self ):
    def linkInterpol( proc, dummy ):
        if proc.read is not None:
            if self.read.type.isA( 'Label Texture' ):
                return True
        return False
    self.rgb_interpolation = False
    self.palette = 'Blue-Red'
    self.linkParameters( 'mesh', 'read' )
    self.linkParameters( 'rgb_interpolation', 'read', linkInterpol )


def execution( self, context ):
    a = anatomist.Anatomist()
    palette = None
    if self.palette:
        palette = self.palette
    interpolation = None
    if self.rgb_interpolation:
        interpolation = 'rgb'
    return a.viewTextureOnMesh( self.mesh, self.read, palette=palette,
        interpolation=interpolation )