#==============================================================================
#
# Project:   SharpImage
# Module:    MinMaxCalc.py
# Language:  IronPython
# Author:    Dan Mueller
# Date:      $Date: 2007-07-06 10:57:00 +1000 (Fri, 06 Jul 2007) $
# Revision:  $Revision: 2 $
#
# Copyright (c) Queensland University of Technology (QUT) 2007.
# All rights reserved.
#
# This software is distributed WITHOUT ANY WARRANTY; without even
# the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
# PURPOSE.  See the above copyright notices for more information.
#
#==============================================================================

# Import the base script class
import ThreadedScript
from ThreadedScript import *

# Add reference and import Calculators library
clr.AddReference("ManagedITK.Calculators")
from itk import *

class MinMaxCalcScript(ThreadedScriptObject):
    # -------------------------------------------------------------------------
    Name = "MinMaxCalc"
    Help = """This calculator computes the minimum and the maximum intensity values
              of an image. The values are displayed in the script console."""
    Parameters = """None"""
    Renderer = None
    Input = None
    # -------------------------------------------------------------------------

    def Initialise(self):
        """ Initialise the environment for running this script. """
        """ NOTE: This function is invoked on the main UI thread. """
        ThreadedScriptObject.Initialise(self)
        self.Renderer = self.ParentApplication.CurrentRenderer
        self.Input = self.Renderer.Inputs[0]

    def ThreadedDoWork(self):
        """ Perform the main functions of the script. """
        """ NOTE: This function is invoked on a background thread. """
        try:
            self.StartedWork()
            self.WriteImageName( "Input=", self.Input )
            calcMinMax = itkMinimumMaximumImageCalculator.New( self.Input )
            calcMinMax.SetImage( self.Input )
            calcMinMax.Compute()
            self.WriteLineToConsole( "Minimum=" + calcMinMax.Minimum.ToString() )
            self.WriteLineToConsole( "Maximum=" + calcMinMax.Maximum.ToString() )
            self.Input.DisconnectPipeline()
            self.DisposeOfObject( calcMinMax )
            self.FinishedWork( True )
        except Exception, ex:
            self.HandleException( ex )
            self.FinishedWork( False )
            self.Finalise( )