source: sasview/src/sas/perspectives/fitting/models.py @ 60dca65c

"""
    Utilities to manage models
"""
import wx
import imp
import os
import sys
import math
import os.path
# Time is needed by the log method
import time
import logging
import py_compile
import shutil
from sas.guiframe.events import StatusEvent
# Explicitly import from the pluginmodel module so that py2exe
# places it in the distribution. The Model1DPlugin class is used
# as the base class of plug-in models.
from sas.models.pluginmodel import Model1DPlugin
from sas.models.BaseComponent import BaseComponent
from sas.guiframe.CategoryInstaller import CategoryInstaller

PLUGIN_DIR = 'plugin_models'

def get_model_python_path():
    return os.path.dirname(__file__)


def log(message):
    """
        Log a message in a file located in the user's home directory
    """
    dir = os.path.join(os.path.expanduser("~"), '.sasview', PLUGIN_DIR)
    out = open(os.path.join(dir, "plugins.log"), 'a')
    out.write("%10g:  %s\n" % (time.clock(), message))
    out.close()


def _check_plugin(model, name):
    """
    Do some checking before model adding plugins in the list

    :param model: class model to add into the plugin list
    :param name:name of the module plugin

    :return model: model if valid model or None if not valid

    """
    #Check if the plugin is of type Model1DPlugin
    if not issubclass(model, Model1DPlugin):
        msg = "Plugin %s must be of type Model1DPlugin \n" % str(name)
        log(msg)
        return None
    if model.__name__ != "Model":
        msg = "Plugin %s class name must be Model \n" % str(name)
        log(msg)
        return None
    try:
        new_instance = model()
    except:
        msg = "Plugin %s error in __init__ \n\t: %s %s\n" % (str(name),
                                    str(sys.exc_type), sys.exc_value)
        log(msg)
        return None

    if hasattr(new_instance, "function"):
        try:
            value = new_instance.function()
        except:
            msg = "Plugin %s: error writing function \n\t :%s %s\n " % (str(name),
                                    str(sys.exc_type), sys.exc_value)
            log(msg)
            return None
    else:
        msg = "Plugin  %s needs a method called function \n" % str(name)
        log(msg)
        return None
    return model


def find_plugins_dir():
    """
        Find path of the plugins directory.
        The plugin directory is located in the user's home directory.
    """
    dir = os.path.join(os.path.expanduser("~"), '.sasview', PLUGIN_DIR)

    # If the plugin directory doesn't exist, create it
    if not os.path.isdir(dir):
        os.makedirs(dir)

    # Find paths needed
    try:
        # For source
        if os.path.isdir(os.path.dirname(__file__)):
            p_dir = os.path.join(os.path.dirname(__file__), PLUGIN_DIR)
        else:
            raise
    except:
        # Check for data path next to exe/zip file.
        #Look for maximum n_dir up of the current dir to find plugins dir
        n_dir = 12
        p_dir = None
        f_dir = os.path.join(os.path.dirname(__file__))
        for i in range(n_dir):
            if i > 1:
                f_dir, _ = os.path.split(f_dir)
            plugin_path = os.path.join(f_dir, PLUGIN_DIR)
            if os.path.isdir(plugin_path):
                p_dir = plugin_path
                break
        if not p_dir:
            raise
    # Place example user models as needed
    if os.path.isdir(p_dir):
        for file in os.listdir(p_dir):
            file_path = os.path.join(p_dir, file)
            if os.path.isfile(file_path):
                if file.split(".")[-1] == 'py' and\
                    file.split(".")[0] != '__init__':
                    if not os.path.isfile(os.path.join(dir, file)):
                        shutil.copy(file_path, dir)

    return dir


class ReportProblem:
    def __nonzero__(self):
        type, value, traceback = sys.exc_info()
        if type is not None and issubclass(type, py_compile.PyCompileError):
            print "Problem with", repr(value)
            raise type, value, traceback
        return 1

report_problem = ReportProblem()


def compile_file(dir):
    """
    Compile a py file
    """
    try:
        import compileall
        compileall.compile_dir(dir=dir, ddir=dir, force=1,
                               quiet=report_problem)
    except:
        type, value, traceback = sys.exc_info()
        return value
    return None


def _findModels(dir):
    """
    """
    # List of plugin objects
    plugins = {}
    # Go through files in plug-in directory
    #always recompile the folder plugin
    dir = find_plugins_dir()
    if not os.path.isdir(dir):
        msg = "SasView couldn't locate Model plugin folder."
        msg += """ "%s" does not exist""" % dir
        logging.warning(msg)
        return plugins
    else:
        log("looking for models in: %s" % str(dir))
        compile_file(dir)
        logging.info("pluging model dir: %s\n" % str(dir))
    try:
        list = os.listdir(dir)
        for item in list:
            toks = os.path.splitext(os.path.basename(item))
            if toks[1] == '.py' and not toks[0] == '__init__':
                name = toks[0]

                path = [os.path.abspath(dir)]
                file = None
                try:
                    (file, path, info) = imp.find_module(name, path)
                    module = imp.load_module(name, file, item, info)
                    if hasattr(module, "Model"):
                        try:
                            if _check_plugin(module.Model, name) != None:
                                plugins[name] = module.Model
                        except:
                            msg = "Error accessing Model"
                            msg += "in %s\n  %s %s\n" % (name,
                                    str(sys.exc_type), sys.exc_value)
                            log(msg)
                except:
                    msg = "Error accessing Model"
                    msg += " in %s\n  %s %s \n" % (name,
                                    str(sys.exc_type), sys.exc_value)
                    log(msg)
                finally:

                    if not file == None:
                        file.close()
    except:
        # Don't deal with bad plug-in imports. Just skip.
        msg = "Could not import model plugin: %s\n" % sys.exc_value
        log(msg)
        pass
    return plugins


class ModelList(object):
    """
    Contains dictionary of model and their type
    """
    def __init__(self):
        """
        """
        self.mydict = {}

    def set_list(self, name, mylist):
        """
        :param name: the type of the list
        :param mylist: the list to add

        """
        if name not in self.mydict.keys():
            self.reset_list(name, mylist)

    def reset_list(self, name, mylist):
        """
        :param name: the type of the list
        :param mylist: the list to add
        """
        self.mydict[name] = mylist

    def get_list(self):
        """
        return all the list stored in a dictionary object
        """
        return self.mydict


class ModelManagerBase:
    """
        Base class for the model manager
    """
    ## external dict for models
    model_combobox = ModelList()
    ## Dictionary of form factor models
    form_factor_dict = {}
    ## dictionary of structure factor models
    struct_factor_dict = {}
    ##list of shape models -- this is superseded by categories 
#    shape_list = []
    ## shape independent model list-- this is superseded by categories
#    shape_indep_list = []
    ##list of structure factors
    struct_list = []
    ##list of model allowing multiplication by a structure factor
    multiplication_factor = []
    ##list of multifunctional shapes (i.e. that have user defined number of levels
    multi_func_list = []
    ## list of added models -- currently python models found in the plugin dir.
    plugins = []
    ## Event owner (guiframe)
    event_owner = None
    last_time_dir_modified = 0

    def __init__(self):
        """
        """
        self.model_dictionary = {}
        self.stored_plugins = {}
        self._getModelList()

    def findModels(self):
        """
        find  plugin model in directory of plugin .recompile all file
        in the directory if file were modified
        """
        temp = {}
        if self.is_changed():
            return  _findModels(dir)
        logging.info("pluging model : %s\n" % str(temp))
        return temp

    def _getModelList(self):
        """
        List of models we want to make available by default
        for this application

        :return: the next free event ID following the new menu events

        """

        ## NOTE: as of April 26, 2014, as part of first pass on fixing categories,
        ## all the appends to shape_list or shape_independent_list are 
        ## commented out.  They should be possible to remove.  They are in 
        ## fact a "category" of model whereas the other list are actually 
        ## "attributes" of a model.  In other words is it a structure factor
        ## that can be used against a form factor, is it a form factor that is
        ## knows how to be multiplied by a structure factor, does it have user
        ## defined number of parameters, etc.
        ##
        ## We hope this whole list will be superseded by the new C models
        ## structure where each model will provide a method to interrogate it
        ## about its "attributes" -- then this long list becomes a loop reading
        ## each model in the category list to populate the "attribute"lists.  
        ## We should also refactor the whole category vs attribute list 
        ## structure when doing this as now the attribute lists think they are
        ## also category lists.
        ##
        ##   -PDB  April 26, 2014

        # regular model names only
        try:
            self.model_name_list = []
            from sas.models.SphereModel import SphereModel
            self.model_dictionary[SphereModel.__name__] = SphereModel
            #        self.shape_list.append(SphereModel)
            self.multiplication_factor.append(SphereModel)
            self.model_name_list.append(SphereModel.__name__)
        except:
            pass

        try:
            from sas.models.BinaryHSModel import BinaryHSModel
            self.model_dictionary[BinaryHSModel.__name__] = BinaryHSModel
            #        self.shape_list.append(BinaryHSModel)
            self.model_name_list.append(BinaryHSModel.__name__)
        except:
            pass

        try:
            from sas.models.FuzzySphereModel import FuzzySphereModel
            self.model_dictionary[FuzzySphereModel.__name__] = FuzzySphereModel
            #        self.shape_list.append(FuzzySphereModel)
            self.multiplication_factor.append(FuzzySphereModel)
            self.model_name_list.append(FuzzySphereModel.__name__)
        except:
            pass

        try:
            from sas.models.RaspBerryModel import RaspBerryModel
            self.model_dictionary[RaspBerryModel.__name__] = RaspBerryModel
            #        self.shape_list.append(RaspBerryModel)
            self.model_name_list.append(RaspBerryModel.__name__)
        except:
            pass

        try:
            from sas.models.CoreShellModel import CoreShellModel

            self.model_dictionary[CoreShellModel.__name__] = CoreShellModel
            #        self.shape_list.append(CoreShellModel)
            self.multiplication_factor.append(CoreShellModel)
            self.model_name_list.append(CoreShellModel.__name__)
        except:
            pass

        try:
            from sas.models.Core2ndMomentModel import Core2ndMomentModel
            self.model_dictionary[Core2ndMomentModel.__name__] = Core2ndMomentModel
            #        self.shape_list.append(Core2ndMomentModel)
            self.model_name_list.append(Core2ndMomentModel.__name__)
        except:
            pass

        try:
            from sas.models.CoreMultiShellModel import CoreMultiShellModel
            self.model_dictionary[CoreMultiShellModel.__name__] = CoreMultiShellModel
            #        self.shape_list.append(CoreMultiShellModel)
            self.multiplication_factor.append(CoreMultiShellModel)
            self.multi_func_list.append(CoreMultiShellModel)
        except:
            pass

        try:
            from sas.models.VesicleModel import VesicleModel
            self.model_dictionary[VesicleModel.__name__] = VesicleModel
            #        self.shape_list.append(VesicleModel)
            self.multiplication_factor.append(VesicleModel)
            self.model_name_list.append(VesicleModel.__name__)
        except:
            pass

        try:
            from sas.models.MultiShellModel import MultiShellModel
            self.model_dictionary[MultiShellModel.__name__] = MultiShellModel
            #        self.shape_list.append(MultiShellModel)
            self.multiplication_factor.append(MultiShellModel)
            self.model_name_list.append(MultiShellModel.__name__)
        except:
            pass

        try:
            from sas.models.OnionExpShellModel import OnionExpShellModel
            self.model_dictionary[OnionExpShellModel.__name__] = OnionExpShellModel
            #        self.shape_list.append(OnionExpShellModel)
            self.multiplication_factor.append(OnionExpShellModel)
            self.multi_func_list.append(OnionExpShellModel)
        except:
            pass

        try:
            from sas.models.SphericalSLDModel import SphericalSLDModel

            self.model_dictionary[SphericalSLDModel.__name__] = SphericalSLDModel
            #        self.shape_list.append(SphericalSLDModel)
            self.multiplication_factor.append(SphericalSLDModel)
            self.multi_func_list.append(SphericalSLDModel)
        except:
            pass

        try:
            from sas.models.LinearPearlsModel import LinearPearlsModel

            self.model_dictionary[LinearPearlsModel.__name__] = LinearPearlsModel
            #        self.shape_list.append(LinearPearlsModel)
            self.model_name_list.append(LinearPearlsModel.__name__)
        except:
            pass

        try:
            from sas.models.PearlNecklaceModel import PearlNecklaceModel

            self.model_dictionary[PearlNecklaceModel.__name__] = PearlNecklaceModel
            #        self.shape_list.append(PearlNecklaceModel)
            self.model_name_list.append(PearlNecklaceModel.__name__)
        except:
            pass

        try:
            from sas.models.CylinderModel import CylinderModel

            self.model_dictionary[CylinderModel.__name__] = CylinderModel
            #        self.shape_list.append(CylinderModel)
            self.multiplication_factor.append(CylinderModel)
            self.model_name_list.append(CylinderModel.__name__)
        except:
            pass

        try:
            from sas.models.CoreShellCylinderModel import CoreShellCylinderModel

            self.model_dictionary[CoreShellCylinderModel.__name__] = CoreShellCylinderModel
            #        self.shape_list.append(CoreShellCylinderModel)
            self.multiplication_factor.append(CoreShellCylinderModel)
            self.model_name_list.append(CoreShellCylinderModel.__name__)
        except:
            pass

        try:
            from sas.models.CoreShellBicelleModel import CoreShellBicelleModel

            self.model_dictionary[CoreShellBicelleModel.__name__] = CoreShellBicelleModel
            #        self.shape_list.append(CoreShellBicelleModel)
            self.multiplication_factor.append(CoreShellBicelleModel)
            self.model_name_list.append(CoreShellBicelleModel.__name__)
        except:
            pass

        try:
            from sas.models.HollowCylinderModel import HollowCylinderModel

            self.model_dictionary[HollowCylinderModel.__name__] = HollowCylinderModel
            #        self.shape_list.append(HollowCylinderModel)
            self.multiplication_factor.append(HollowCylinderModel)
            self.model_name_list.append(HollowCylinderModel.__name__)
        except:
            pass

        try:
            from sas.models.FlexibleCylinderModel import FlexibleCylinderModel

            self.model_dictionary[FlexibleCylinderModel.__name__] = FlexibleCylinderModel
            #        self.shape_list.append(FlexibleCylinderModel)
            self.model_name_list.append(FlexibleCylinderModel.__name__)
        except:
            pass

        try:
            from sas.models.FlexCylEllipXModel import FlexCylEllipXModel

            self.model_dictionary[FlexCylEllipXModel.__name__] = FlexCylEllipXModel
            #        self.shape_list.append(FlexCylEllipXModel)
            self.model_name_list.append(FlexCylEllipXModel.__name__)
        except:
            pass

        try:
            from sas.models.StackedDisksModel import StackedDisksModel

            self.model_dictionary[StackedDisksModel.__name__] = StackedDisksModel
            #        self.shape_list.append(StackedDisksModel)
            self.multiplication_factor.append(StackedDisksModel)
            self.model_name_list.append(StackedDisksModel.__name__)
        except:
            pass

        try:
            from sas.models.ParallelepipedModel import ParallelepipedModel

            self.model_dictionary[ParallelepipedModel.__name__] = ParallelepipedModel
            #        self.shape_list.append(ParallelepipedModel)
            self.multiplication_factor.append(ParallelepipedModel)
            self.model_name_list.append(ParallelepipedModel.__name__)
        except:
            pass

        try:
            from sas.models.CSParallelepipedModel import CSParallelepipedModel

            self.model_dictionary[CSParallelepipedModel.__name__] = CSParallelepipedModel
            #        self.shape_list.append(CSParallelepipedModel)
            self.multiplication_factor.append(CSParallelepipedModel)
            self.model_name_list.append(CSParallelepipedModel.__name__)
        except:
            pass

        try:
            from sas.models.EllipticalCylinderModel import EllipticalCylinderModel

            self.model_dictionary[EllipticalCylinderModel.__name__] = EllipticalCylinderModel
            #        self.shape_list.append(EllipticalCylinderModel)
            self.multiplication_factor.append(EllipticalCylinderModel)
            self.model_name_list.append(EllipticalCylinderModel.__name__)
        except:
            pass

        try:
            from sas.models.CappedCylinderModel import CappedCylinderModel

            self.model_dictionary[CappedCylinderModel.__name__] = CappedCylinderModel
            #       self.shape_list.append(CappedCylinderModel)
            self.model_name_list.append(CappedCylinderModel.__name__)
        except:
            pass

        try:
            from sas.models.EllipsoidModel import EllipsoidModel

            self.model_dictionary[EllipsoidModel.__name__] = EllipsoidModel
            #        self.shape_list.append(EllipsoidModel)
            self.multiplication_factor.append(EllipsoidModel)
            self.model_name_list.append(EllipsoidModel.__name__)
        except:
            pass

        try:
            from sas.models.CoreShellEllipsoidModel import CoreShellEllipsoidModel

            self.model_dictionary[CoreShellEllipsoidModel.__name__] = CoreShellEllipsoidModel
            #        self.shape_list.append(CoreShellEllipsoidModel)
            self.multiplication_factor.append(CoreShellEllipsoidModel)
            self.model_name_list.append(CoreShellEllipsoidModel.__name__)
        except:
            pass

        try:
            from sas.models.CoreShellEllipsoidXTModel import CoreShellEllipsoidXTModel

            self.model_dictionary[CoreShellEllipsoidXTModel.__name__] = CoreShellEllipsoidXTModel
            #        self.shape_list.append(CoreShellEllipsoidXTModel)
            self.multiplication_factor.append(CoreShellEllipsoidXTModel)
            self.model_name_list.append(CoreShellEllipsoidXTModel.__name__)
        except:
            pass

        try:
            from sas.models.TriaxialEllipsoidModel import TriaxialEllipsoidModel

            self.model_dictionary[TriaxialEllipsoidModel.__name__] = TriaxialEllipsoidModel
            #        self.shape_list.append(TriaxialEllipsoidModel)
            self.multiplication_factor.append(TriaxialEllipsoidModel)
            self.model_name_list.append(TriaxialEllipsoidModel.__name__)
        except:
            pass

        try:
            from sas.models.LamellarModel import LamellarModel

            self.model_dictionary[LamellarModel.__name__] = LamellarModel
            #        self.shape_list.append(LamellarModel)
            self.model_name_list.append(LamellarModel.__name__)
        except:
            pass

        try:
            from sas.models.LamellarFFHGModel import LamellarFFHGModel

            self.model_dictionary[LamellarFFHGModel.__name__] = LamellarFFHGModel
            #        self.shape_list.append(LamellarFFHGModel)
            self.model_name_list.append(LamellarFFHGModel.__name__)
        except:
            pass

        try:
            from sas.models.LamellarPSModel import LamellarPSModel

            self.model_dictionary[LamellarPSModel.__name__] = LamellarPSModel
            #        self.shape_list.append(LamellarPSModel)
            self.model_name_list.append(LamellarPSModel.__name__)
        except:
            pass

        try:
            from sas.models.LamellarPSHGModel import LamellarPSHGModel

            self.model_dictionary[LamellarPSHGModel.__name__] = LamellarPSHGModel
            #        self.shape_list.append(LamellarPSHGModel)
            self.model_name_list.append(LamellarPSHGModel.__name__)
        except:
            pass

        try:
            from sas.models.LamellarPCrystalModel import LamellarPCrystalModel

            self.model_dictionary[LamellarPCrystalModel.__name__] = LamellarPCrystalModel
            #        self.shape_list.append(LamellarPCrystalModel)
            self.model_name_list.append(LamellarPCrystalModel.__name__)
        except:
            pass

        try:
            from sas.models.SCCrystalModel import SCCrystalModel

            self.model_dictionary[SCCrystalModel.__name__] = SCCrystalModel
            #        self.shape_list.append(SCCrystalModel)
            self.model_name_list.append(SCCrystalModel.__name__)
        except:
            pass

        try:
            from sas.models.FCCrystalModel import FCCrystalModel

            self.model_dictionary[FCCrystalModel.__name__] = FCCrystalModel
            #        self.shape_list.append(FCCrystalModel)
            self.model_name_list.append(FCCrystalModel.__name__)
        except:
            pass

        try:
            from sas.models.BCCrystalModel import BCCrystalModel

            self.model_dictionary[BCCrystalModel.__name__] = BCCrystalModel
            #        self.shape_list.append(BCCrystalModel)
            self.model_name_list.append(BCCrystalModel.__name__)
        except:
            pass


        ## Structure factor
        try:
            from sas.models.SquareWellStructure import SquareWellStructure

            self.model_dictionary[SquareWellStructure.__name__] = SquareWellStructure
            self.struct_list.append(SquareWellStructure)
            self.model_name_list.append(SquareWellStructure.__name__)
        except:
            pass

        try:
            from sas.models.HardsphereStructure import HardsphereStructure

            self.model_dictionary[HardsphereStructure.__name__] = HardsphereStructure
            self.struct_list.append(HardsphereStructure)
            self.model_name_list.append(HardsphereStructure.__name__)
        except:
            pass

        try:
            from sas.models.StickyHSStructure import StickyHSStructure

            self.model_dictionary[StickyHSStructure.__name__] = StickyHSStructure
            self.struct_list.append(StickyHSStructure)
            self.model_name_list.append(StickyHSStructure.__name__)
        except:
            pass

        try:
            from sas.models.HayterMSAStructure import HayterMSAStructure

            self.model_dictionary[HayterMSAStructure.__name__] = HayterMSAStructure
            self.struct_list.append(HayterMSAStructure)
            self.model_name_list.append(HayterMSAStructure.__name__)
        except:
            pass



        ##shape-independent models
        try:
            from sas.models.PowerLawAbsModel import PowerLawAbsModel

            self.model_dictionary[PowerLawAbsModel.__name__] = PowerLawAbsModel
            #        self.shape_indep_list.append(PowerLawAbsModel)
            self.model_name_list.append(PowerLawAbsModel.__name__)
        except:
            pass

        try:
            from sas.models.BEPolyelectrolyte import BEPolyelectrolyte

            self.model_dictionary[BEPolyelectrolyte.__name__] = BEPolyelectrolyte
            #        self.shape_indep_list.append(BEPolyelectrolyte)
            self.model_name_list.append(BEPolyelectrolyte.__name__)
            self.form_factor_dict[str(wx.NewId())] = [SphereModel]
        except:
            pass

        try:
            from sas.models.BroadPeakModel import BroadPeakModel

            self.model_dictionary[BroadPeakModel.__name__] = BroadPeakModel
            #        self.shape_indep_list.append(BroadPeakModel)
            self.model_name_list.append(BroadPeakModel.__name__)
        except:
            pass

        try:
            from sas.models.CorrLengthModel import CorrLengthModel

            self.model_dictionary[CorrLengthModel.__name__] = CorrLengthModel
            #        self.shape_indep_list.append(CorrLengthModel)
            self.model_name_list.append(CorrLengthModel.__name__)
        except:
            pass

        try:
            from sas.models.DABModel import DABModel

            self.model_dictionary[DABModel.__name__] = DABModel
            #        self.shape_indep_list.append(DABModel)
            self.model_name_list.append(DABModel.__name__)
        except:
            pass

        try:
            from sas.models.DebyeModel import DebyeModel

            self.model_dictionary[DebyeModel.__name__] = DebyeModel
            #        self.shape_indep_list.append(DebyeModel)
            self.model_name_list.append(DebyeModel.__name__)
        except:
            pass

        try:
            from sas.models.FractalModel import FractalModel

            self.model_dictionary[FractalModel.__name__] = FractalModel
            #        self.shape_indep_list.append(FractalModel)
            self.model_name_list.append(FractalModel.__name__)
        except:
            pass

        try:
            from sas.models.FractalCoreShellModel import FractalCoreShellModel

            self.model_dictionary[FractalCoreShellModel.__name__] = FractalCoreShellModel
            #        self.shape_indep_list.append(FractalCoreShellModel)
            self.model_name_list.append(FractalCoreShellModel.__name__)
        except:
            pass

        try:
            from sas.models.GaussLorentzGelModel import GaussLorentzGelModel

            self.model_dictionary[GaussLorentzGelModel.__name__] = GaussLorentzGelModel
            #        self.shape_indep_list.append(GaussLorentzGelModel)
            self.model_name_list.append(GaussLorentzGelModel.__name__)
        except:
            pass

        try:
            from sas.models.GuinierModel import GuinierModel

            self.model_dictionary[GuinierModel.__name__] = GuinierModel
            #        self.shape_indep_list.append(GuinierModel)
            self.model_name_list.append(GuinierModel.__name__)
        except:
            pass

        try:
            from sas.models.GuinierPorodModel import GuinierPorodModel

            self.model_dictionary[GuinierPorodModel.__name__] = GuinierPorodModel
            #        self.shape_indep_list.append(GuinierPorodModel)
            self.model_name_list.append(GuinierPorodModel.__name__)
        except:
            pass

        try:
            from sas.models.LorentzModel import LorentzModel

            self.model_dictionary[LorentzModel.__name__] = LorentzModel
            #        self.shape_indep_list.append(LorentzModel)
            self.model_name_list.append(LorentzModel.__name__)
        except:
            pass

        try:
            from sas.models.MassFractalModel import MassFractalModel

            self.model_dictionary[MassFractalModel.__name__] = MassFractalModel
            #        self.shape_indep_list.append(MassFractalModel)
            self.model_name_list.append(MassFractalModel.__name__)
        except:
            pass

        try:
            from sas.models.MassSurfaceFractal import MassSurfaceFractal

            self.model_dictionary[MassSurfaceFractal.__name__] = MassSurfaceFractal
            #        self.shape_indep_list.append(MassSurfaceFractal)
            self.model_name_list.append(MassSurfaceFractal.__name__)
        except:
            pass

        try:
            from sas.models.PeakGaussModel import PeakGaussModel

            self.model_dictionary[PeakGaussModel.__name__] = PeakGaussModel
            #        self.shape_indep_list.append(PeakGaussModel)
            self.model_name_list.append(PeakGaussModel.__name__)
        except:
            pass

        try:
            from sas.models.PeakLorentzModel import PeakLorentzModel

            self.model_dictionary[PeakLorentzModel.__name__] = PeakLorentzModel
            #        self.shape_indep_list.append(PeakLorentzModel)
            self.model_name_list.append(PeakLorentzModel.__name__)
        except:
            pass

        try:
            from sas.models.Poly_GaussCoil import Poly_GaussCoil

            self.model_dictionary[Poly_GaussCoil.__name__] = Poly_GaussCoil
            #        self.shape_indep_list.append(Poly_GaussCoil)
            self.model_name_list.append(Poly_GaussCoil.__name__)
        except:
            pass

        try:
            from sas.models.PolymerExclVolume import PolymerExclVolume

            self.model_dictionary[PolymerExclVolume.__name__] = PolymerExclVolume
            #        self.shape_indep_list.append(PolymerExclVolume)
            self.model_name_list.append(PolymerExclVolume.__name__)
        except:
            pass

        try:
            from sas.models.PorodModel import PorodModel

            self.model_dictionary[PorodModel.__name__] = PorodModel
            #        self.shape_indep_list.append(PorodModel)
            self.model_name_list.append(PorodModel.__name__)
        except:
            pass

        try:
            from sas.models.RPA10Model import RPA10Model

            self.model_dictionary[RPA10Model.__name__] = RPA10Model
            #        self.shape_indep_list.append(RPA10Model)
            self.multi_func_list.append(RPA10Model)
        except:
            pass

        try:
            from sas.models.StarPolymer import StarPolymer

            self.model_dictionary[StarPolymer.__name__] = StarPolymer
            #        self.shape_indep_list.append(StarPolymer)
            self.model_name_list.append(StarPolymer.__name__)
        except:
            pass

        try:
            from sas.models.SurfaceFractalModel import SurfaceFractalModel

            self.model_dictionary[SurfaceFractalModel.__name__] = SurfaceFractalModel
            #        self.shape_indep_list.append(SurfaceFractalModel)
            self.model_name_list.append(SurfaceFractalModel.__name__)
        except:
            pass

        try:
            from sas.models.TeubnerStreyModel import TeubnerStreyModel

            self.model_dictionary[TeubnerStreyModel.__name__] = TeubnerStreyModel
            #        self.shape_indep_list.append(TeubnerStreyModel)
            self.model_name_list.append(TeubnerStreyModel.__name__)
        except:
            pass

        try:
            from sas.models.TwoLorentzianModel import TwoLorentzianModel

            self.model_dictionary[TwoLorentzianModel.__name__] = TwoLorentzianModel
            #        self.shape_indep_list.append(TwoLorentzianModel)
            self.model_name_list.append(TwoLorentzianModel.__name__)
        except:
            pass

        try:
            from sas.models.TwoPowerLawModel import TwoPowerLawModel

            self.model_dictionary[TwoPowerLawModel.__name__] = TwoPowerLawModel
            #        self.shape_indep_list.append(TwoPowerLawModel)
            self.model_name_list.append(TwoPowerLawModel.__name__)
        except:
            pass

        try:
            from sas.models.UnifiedPowerRgModel import UnifiedPowerRgModel

            self.model_dictionary[UnifiedPowerRgModel.__name__] = UnifiedPowerRgModel
            #        self.shape_indep_list.append(UnifiedPowerRgModel)
            self.multi_func_list.append(UnifiedPowerRgModel)
        except:
            pass

        try:
            from sas.models.LineModel import LineModel

            self.model_dictionary[LineModel.__name__] = LineModel
            #        self.shape_indep_list.append(LineModel)
            self.model_name_list.append(LineModel.__name__)
        except:
            pass

        try:
            from sas.models.ReflectivityModel import ReflectivityModel

            self.model_dictionary[ReflectivityModel.__name__] = ReflectivityModel
            #        self.shape_indep_list.append(ReflectivityModel)
            self.multi_func_list.append(ReflectivityModel)
        except:
            pass

        try:
            from sas.models.ReflectivityIIModel import ReflectivityIIModel

            self.model_dictionary[ReflectivityIIModel.__name__] = ReflectivityIIModel
            #        self.shape_indep_list.append(ReflectivityIIModel)
            self.multi_func_list.append(ReflectivityIIModel)
        except:
            pass

        try:
            from sas.models.GelFitModel import GelFitModel

            self.model_dictionary[GelFitModel.__name__] = GelFitModel
            #        self.shape_indep_list.append(GelFitModel)
            self.model_name_list.append(GelFitModel.__name__)
        except:
            pass

        try:
            from sas.models.PringlesModel import PringlesModel

            self.model_dictionary[PringlesModel.__name__] = PringlesModel
            #        self.shape_indep_list.append(PringlesModel)
            self.model_name_list.append(PringlesModel.__name__)
        except:
            pass

        try:
            from sas.models.RectangularPrismModel import RectangularPrismModel

            self.model_dictionary[RectangularPrismModel.__name__] = RectangularPrismModel
            #        self.shape_list.append(RectangularPrismModel)
            self.multiplication_factor.append(RectangularPrismModel)
            self.model_name_list.append(RectangularPrismModel.__name__)
        except:
            pass

        try:
            from sas.models.RectangularHollowPrismInfThinWallsModel import RectangularHollowPrismInfThinWallsModel

            self.model_dictionary[RectangularHollowPrismInfThinWallsModel.__name__] = RectangularHollowPrismInfThinWallsModel
            #        self.shape_list.append(RectangularHollowPrismInfThinWallsModel)
            self.multiplication_factor.append(RectangularHollowPrismInfThinWallsModel)
            self.model_name_list.append(RectangularHollowPrismInfThinWallsModel.__name__)
        except:
            pass

        try:
            from sas.models.RectangularHollowPrismModel import RectangularHollowPrismModel

            self.model_dictionary[RectangularHollowPrismModel.__name__] = RectangularHollowPrismModel
            #        self.shape_list.append(RectangularHollowPrismModel)
            self.multiplication_factor.append(RectangularHollowPrismModel)
            self.model_name_list.append(RectangularHollowPrismModel.__name__)
        except:
            pass

        try:
            from sas.models.MicelleSphCoreModel import MicelleSphCoreModel

            self.model_dictionary[MicelleSphCoreModel.__name__] = MicelleSphCoreModel
            #        self.shape_list.append(MicelleSphCoreModel)
            self.multiplication_factor.append(MicelleSphCoreModel)
            self.model_name_list.append(MicelleSphCoreModel.__name__)
        except:
            pass



        #from sas.models.FractalO_Z import FractalO_Z
        #self.model_dictionary[FractalO_Z.__name__] = FractalO_Z
        #self.shape_indep_list.append(FractalO_Z)
        #self.model_name_list.append(FractalO_Z.__name__)

        #Looking for plugins
        self.stored_plugins = self.findModels()
        self.plugins = self.stored_plugins.values()
        for name, plug in self.stored_plugins.iteritems():
            self.model_dictionary[name] = plug

        self._get_multifunc_models()

        return 0

    def is_changed(self):
        """
        check the last time the plugin dir has changed and return true
         is the directory was modified else return false
        """
        is_modified = False
        plugin_dir = find_plugins_dir()
        if os.path.isdir(plugin_dir):
            temp = os.path.getmtime(plugin_dir)
            if  self.last_time_dir_modified != temp:
                is_modified = True
                self.last_time_dir_modified = temp

        return is_modified

    def update(self):
        """
        return a dictionary of model if
        new models were added else return empty dictionary
        """
        new_plugins = self.findModels()
        if len(new_plugins) > 0:
            for name, plug in  new_plugins.iteritems():
                if name not in self.stored_plugins.keys():
                    self.stored_plugins[name] = plug
                    self.plugins.append(plug)
                    self.model_dictionary[name] = plug
            self.model_combobox.set_list("Customized Models", self.plugins)
            return self.model_combobox.get_list()
        else:
            return {}

    def pulgins_reset(self):
        """
        return a dictionary of model
        """
        self.plugins = []
        new_plugins = _findModels(dir)
        for name, plug in  new_plugins.iteritems():
            for stored_name, stored_plug in self.stored_plugins.iteritems():
                if name == stored_name:
                    del self.stored_plugins[name]
                    del self.model_dictionary[name]
                    break
            self.stored_plugins[name] = plug
            self.plugins.append(plug)
            self.model_dictionary[name] = plug

        self.model_combobox.reset_list("Customized Models", self.plugins)
        return self.model_combobox.get_list()

##   I believe the next four methods are for the old form factor GUI
##   where the dropdown showed a list of categories which then rolled out
##   in a second dropdown to the side. Some testing shows they indeed no longer
##   seem to be called.  If no problems are found during testing of release we
##   can remove this huge chunck of stuff.
##
##   -PDB  April 26, 2014

#   def populate_menu(self, modelmenu, event_owner):
#       """
#       Populate a menu with our models
#       
#       :param id: first menu event ID to use when binding the menu events
#       :param modelmenu: wx.Menu object to populate
#       :param event_owner: wx object to bind the menu events to
#       
#       :return: the next free event ID following the new menu events
#       
#       """
# 
        ## Fill model lists
#        self._getModelList()
        ## store reference to model menu of guiframe
#        self.modelmenu = modelmenu
        ## guiframe reference
#        self.event_owner = event_owner

#        shape_submenu = wx.Menu()
#        shape_indep_submenu = wx.Menu()
#        structure_factor = wx.Menu()
#        added_models = wx.Menu()
#        multip_models = wx.Menu()
        ## create menu with shape
#        self._fill_simple_menu(menuinfo=["Shapes",
#                                         shape_submenu,
#                                         " simple shape"],
#                         list1=self.shape_list)

#        self._fill_simple_menu(menuinfo=["Shape-Independent",
#                                         shape_indep_submenu,
#                                         "List of shape-independent models"],
#                         list1=self.shape_indep_list)

#        self._fill_simple_menu(menuinfo=["Structure Factors",
#                                         structure_factor,
#                                         "List of Structure factors models"],
#                                list1=self.struct_list)

#        self._fill_plugin_menu(menuinfo=["Customized Models", added_models,
#                                            "List of additional models"],
#                                 list1=self.plugins)

#        self._fill_menu(menuinfo=["P(Q)*S(Q)", multip_models,
#                                  "mulplication of 2 models"],
#                                   list1=self.multiplication_factor,
#                                   list2=self.struct_list)
#        return 0

#    def _fill_plugin_menu(self, menuinfo, list1):
#        """
#        fill the plugin menu with costumized models
#        """
#        print ("got to fill plugin menu")
#        if len(list1) == 0:
#            id = wx.NewId()
#            msg = "No model available check plugins.log for errors to fix problem"
#            menuinfo[1].Append(int(id), "Empty", msg)
#        self._fill_simple_menu(menuinfo, list1)

#   def _fill_simple_menu(self, menuinfo, list1):
#       """
#       Fill the menu with list item
#       
#       :param modelmenu: the menu to fill
#       :param menuinfo: submenu item for the first column of this modelmenu
#                        with info.Should be a list :
#                        [name(string) , menu(wx.menu), help(string)]
#       :param list1: contains item (form factor )to fill modelmenu second column
#       
#       """
#       if len(list1) > 0:
#           self.model_combobox.set_list(menuinfo[0], list1)

#            for item in list1:
#                try:
#                    id = wx.NewId()
#                    struct_factor = item()
#                    struct_name = struct_factor.__class__.__name__
#                    if hasattr(struct_factor, "name"):
#                        struct_name = struct_factor.name
#                        
#                    menuinfo[1].Append(int(id), struct_name, struct_name)
#                    if not  item in self.struct_factor_dict.itervalues():
#                        self.struct_factor_dict[str(id)] = item
#                    wx.EVT_MENU(self.event_owner, int(id), self._on_model)
#                except:
#                    msg = "Error Occured: %s" % sys.exc_value
#                    wx.PostEvent(self.event_owner, StatusEvent(status=msg))
#                
#        id = wx.NewId()
#        self.modelmenu.AppendMenu(id, menuinfo[0], menuinfo[1], menuinfo[2])
#        
#    def _fill_menu(self, menuinfo, list1, list2):
#        """
#        Fill the menu with list item
#        
#        :param menuinfo: submenu item for the first column of this modelmenu
#                         with info.Should be a list :
#                         [name(string) , menu(wx.menu), help(string)]
#        :param list1: contains item (form factor )to fill modelmenu second column
#        :param list2: contains item (Structure factor )to fill modelmenu
#                third column
#                
#        """
#        if len(list1) > 0:
#            self.model_combobox.set_list(menuinfo[0], list1)
#            
#            for item in list1:
#                form_factor = item()
#                form_name = form_factor.__class__.__name__
#                if hasattr(form_factor, "name"):
#                    form_name = form_factor.name
#                ### store form factor to return to other users
#                newmenu = wx.Menu()
#                if len(list2) > 0:
#                    for model  in list2:
#                        id = wx.NewId()
#                        struct_factor = model()
#                        name = struct_factor.__class__.__name__
#                        if hasattr(struct_factor, "name"):
#                            name = struct_factor.name
#                        newmenu.Append(id, name, name)
#                        wx.EVT_MENU(self.event_owner, int(id), self._on_model)
#                        ## save form_fact and struct_fact
#                        self.form_factor_dict[int(id)] = [form_factor,
#                                                          struct_factor]
#                        
#                form_id = wx.NewId()
#                menuinfo[1].AppendMenu(int(form_id), form_name,
#                                       newmenu, menuinfo[2])
#        id = wx.NewId()
#        self.modelmenu.AppendMenu(id, menuinfo[0], menuinfo[1], menuinfo[2])

    def _on_model(self, evt):
        """
        React to a model menu event

        :param event: wx menu event

        """
        if int(evt.GetId()) in self.form_factor_dict.keys():
            from sas.models.MultiplicationModel import MultiplicationModel
            self.model_dictionary[MultiplicationModel.__name__] = MultiplicationModel
            model1, model2 = self.form_factor_dict[int(evt.GetId())]
            model = MultiplicationModel(model1, model2)
        else:
            model = self.struct_factor_dict[str(evt.GetId())]()

        #TODO: investigate why the following two lines were left in the code
        #      even though the ModelEvent class doesn't exist
        #evt = ModelEvent(model=model)
        #wx.PostEvent(self.event_owner, evt)

    def _get_multifunc_models(self):
        """
        Get the multifunctional models
        """
        for item in self.plugins:
            try:
                # check the multiplicity if any
                if item.multiplicity_info[0] > 1:
                    self.multi_func_list.append(item)
            except:
                # pass to other items
                pass

    def get_model_list(self):
        """
        return dictionary of models for fitpanel use

        """
        ## Model_list now only contains attribute lists not category list.
        ## Eventually this should be in one master list -- read in category
        ## list then pull those models that exist and get attributes then add
        ## to list ..and if model does not exist remove from list as now
        ## and update json file.
        ##
        ## -PDB   April 26, 2014

#        self.model_combobox.set_list("Shapes", self.shape_list)
#        self.model_combobox.set_list("Shape-Independent",
#                                     self.shape_indep_list)
        self.model_combobox.set_list("Structure Factors", self.struct_list)
        self.model_combobox.set_list("Customized Models", self.plugins)
        self.model_combobox.set_list("P(Q)*S(Q)", self.multiplication_factor)
        self.model_combobox.set_list("multiplication",
                                     self.multiplication_factor)
        self.model_combobox.set_list("Multi-Functions", self.multi_func_list)
        return self.model_combobox.get_list()

    def get_model_name_list(self):
        """
        return regular model name list
        """
        return self.model_name_list

    def get_model_dictionary(self):
        """
        return dictionary linking model names to objects
        """
        return self.model_dictionary


class ModelManager(object):
    """
    implement model
    """
    __modelmanager = ModelManagerBase()
    cat_model_list = [model_name for model_name \
                      in __modelmanager.model_dictionary.keys() \
                      if model_name not in __modelmanager.stored_plugins.keys()]

    CategoryInstaller.check_install(model_list=cat_model_list)
    def findModels(self):
        return self.__modelmanager.findModels()

    def _getModelList(self):
        return self.__modelmanager._getModelList()

    def is_changed(self):
        return self.__modelmanager.is_changed()

    def update(self):
        return self.__modelmanager.update()

    def pulgins_reset(self):
        return self.__modelmanager.pulgins_reset()

    def populate_menu(self, modelmenu, event_owner):
        return self.__modelmanager.populate_menu(modelmenu, event_owner)

    def _on_model(self, evt):
        return self.__modelmanager._on_model(evt)

    def _get_multifunc_models(self):
        return self.__modelmanager._get_multifunc_models()

    def get_model_list(self):
        return self.__modelmanager.get_model_list()

    def get_model_name_list(self):
        return self.__modelmanager.get_model_name_list()

    def get_model_dictionary(self):
        return self.__modelmanager.get_model_dictionary()