#/*##########################################################################
# Copyright (C) 2004-2014 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This file is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
#############################################################################*/
import numpy

class DataObject(object):
    '''
    Simple container of an array and associated information.
    Basically it has the members:
    info: A dictionnary
    data: An array, usually 2D, 3D, ...

    In the past also incorporated selection methods.
    Now each different data source implements its selection methods.

    Plotting routines may add additional members
    
    x: A list containing arrays to be considered axes
    y: A list of data to be considered as signals
    m: A list containing the monitor data
    '''
    GETINFO_DEPRECATION_WARNING = True
    GETDATA_DEPRECATION_WARNING = True
    SELECT_DEPRECATION_WARNING = True
    
    def __init__(self):
        '''
        Defaut Constructor
        '''
        self.info = {}
        self.data = numpy.array([])

    # all the following  methods are here for compatibility purposes
    # they are obsolete and bound to disappear.

    def getInfo(self):
        """
        Deprecated method
        """
        if DataObject.GETINFO_DEPRECATION_WARNING:
            print("DEPRECATION WARNING: DataObject.getInfo()")
            DataObject.GETINFO_DEPRECATION_WARNING  = False
        return self.info

    def getData(self):
        """
        Deprecated method
        """
        if DataObject.GETDATA_DEPRECATION_WARNING:
            print("DEPRECATION WARNING: DataObject.getData()")
            DataObject.GETDATA_DEPRECATION_WARNING  = False
        return self.data

    def select(self, selection=None):
        """
        Deprecated method
        """
        if DataObject.SELECT_DEPRECATION_WARNING:
            print("DEPRECATION WARNING: DataObject.select(selection=None)")
            DataObject.SELECT_DEPRECATION_WARNING = False
        dataObject = DataObject()
        dataObject.info = self.info
        dataObject.info['selection'] = selection
        if selection is None:
            dataObject.data = self.data
            return dataObject
        if type(selection) == dict:
            #dataObject.data = self.data #should I set it to none???
            dataObject.data = None
            if 'rows' in selection:
                dataObject.x = None
                dataObject.y = None
                dataObject.m = None
                if 'x' in selection['rows']:
                    for rownumber in selection['rows']['x']:
                        if rownumber is None:
                            continue
                        if dataObject.x is None:
                            dataObject.x = []
                        dataObject.x.append(self.data[rownumber, :])

                if 'y' in selection['rows']:
                    for rownumber in selection['rows']['y']:
                        if rownumber is None:
                            continue
                        if dataObject.y is None:
                            dataObject.y = []
                        dataObject.y.append(self.data[rownumber, :])

                if 'm' in selection['rows']:
                    for rownumber in selection['rows']['m']:
                        if rownumber is None:
                            continue
                        if dataObject.m is None:
                            dataObject.m = []
                        dataObject.m.append(self.data[rownumber, :])
            elif ('cols' in selection) or ('columns' in selection):
                if 'cols' in selection:
                    key = 'cols'
                else:
                    key = 'columns'
                dataObject.x = None
                dataObject.y = None
                dataObject.m = None
                if 'x' in selection[key]:
                    for rownumber in selection[key]['x']:
                        if rownumber is None:
                            continue
                        if dataObject.x is None:
                            dataObject.x = []
                        dataObject.x.append(self.data[:, rownumber])

                if 'y' in selection[key]:
                    for rownumber in selection[key]['y']:
                        if rownumber is None:
                            continue
                        if dataObject.y is None:
                            dataObject.y = []
                        dataObject.y.append(self.data[:, rownumber])

                if 'm' in selection[key]:
                    for rownumber in selection[key]['m']:
                        if rownumber is None:
                            continue
                        if dataObject.m is None:
                            dataObject.m = []
                        dataObject.m.append(self.data[:, rownumber])
            if dataObject.x is None:
                if 'Channel0' in dataObject.info:
                    ch0 = int(dataObject.info['Channel0'])
                else:
                    ch0 = 0
                dataObject.x = [numpy.arange(ch0,
                             ch0 + len(dataObject.y[0])).astype(numpy.float)]
            if not ("selectiontype" in dataObject.info):
                dataObject.info["selectiontype"] = "%dD" % len(dataObject.y)
            return dataObject