name template for Calc interface

Author: carlohamalainen

nipype/interfaces/minc/minc.py

@@ -950,7 +950,10 @@ class CalcInputSpec(CommandLineInputSpec):
         desc='output file',
         genfile=True,
         argstr='%s',
-        position=-1,)
+        position=-1,
+        name_source=['input_files'],
+        hash_files=False,
+        name_template='%s_calc.mnc')
 
     two = traits.Bool(desc='Create a MINC 2 output file.', argstr='-2')
 
@@ -1145,26 +1148,6 @@ class Calc(CommandLine):
     output_spec = CalcOutputSpec
     _cmd = 'minccalc'
 
-    def _gen_filename(self, name):
-        if name == 'output_file':
-            output_file = self.inputs.output_file
-
-            if isdefined(output_file):
-                return os.path.abspath(output_file)
-            else:
-                return aggregate_filename(
-                    [self.inputs.input_file], 'calc_output')
-        else:
-            raise NotImplemented
-
-    def _gen_outfilename(self):
-        return self._gen_filename('output_file')
-
-    def _list_outputs(self):
-        outputs = self.output_spec().get()
-        outputs['output_file'] = os.path.abspath(self._gen_outfilename())
-        return outputs
-
 
 # FIXME mincbbox produces output like
 #