PulsedMeasurementGui.generate_pulse_block_ensemble_clicked() - Code Metrics - Inspection of "Merge branch 'master' of https://github.com/Ulm-IQ..." - Ulm-IQO/qudi - Measure and Improve Code Quality continuously with Scrutinizer

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Push — pulsed_with_queued_connections ( 6b1460...30fbbf )

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created 2016-09-29 14:23 UTC
PulsedMeasurementGui.generate_pulse_block_ensemble_clicked() A

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# -*- coding: utf-8 -*-

"""
This file contains the Qudi main GUI for pulsed measurements.

Qudi is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Qudi 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with Qudi. If not, see <http://www.gnu.org/licenses/>.

Copyright (c) the Qudi Developers. See the COPYRIGHT.txt file at the
top-level directory of this distribution and at <https://github.com/Ulm-IQO/qudi/>
"""

from qtpy import QtGui
from qtpy import QtCore
from qtpy import QtWidgets
from qtpy import uic
import numpy as np
import os
from collections import OrderedDict
import pyqtgraph as pg
import re
import inspect
import datetime


from gui.guibase import GUIBase
from gui.colordefs import QudiPalettePale as palette
from gui.colordefs import QudiPalette as palettedark
from core.util.mutex import Mutex
from core.util import units

from logic.pulse_objects import Pulse_Block_Element
from logic.pulse_objects import Pulse_Block
from logic.pulse_objects import Pulse_Block_Ensemble
from logic.pulse_objects import Pulse_Sequence

from .spinbox_delegate import SpinBoxDelegate
from .doublespinbox_delegate import DoubleSpinBoxDelegate
from .combobox_delegate import ComboBoxDelegate
from .checkbox_delegate import CheckBoxDelegate

#FIXME: Display the Pulse
#FIXME: save the length in sample points (bins)
#FIXME: adjust the length to the bins
#FIXME: Later that should be able to round up the values directly within
#       the entering in the dspinbox for a consistent display of the
#       sequence length.

# =============================================================================
#                       Define some delegate classes.
# =============================================================================
#
# A general idea, which functions are customizable for our purpose it is worth
# to read the documentation for the QItemDelegate Class:
# http://pyqt.sourceforge.net/Docs/PyQt4/qitemdelegate.html
#
# If you want to delegate a row or a column of a QTableWidget, then you have
# at least to declare the constructors and the modification function for the
# displayed data (which you see in the table) and the saved data (which is
# handeled by the model class of the table). That means your delegate should
# at least contain the functions:
#       - createEditor
#       - setEditor
#       - updateEditorGeometry
#       - setModelData
#
# I.e. when editing data in an item view, editors are created and displayed by
# a delegate.
#
# Use the QStyledItemDelegate class instead of QItemDelegate, since the first
# one provides extended possibilities of painting the windows and can be
# changed by Qt style sheets.
# Since the delegate is a subclass of QItemDelegate or QStyledItemDelegate, the
# data it retrieves from the model is displayed in a default style, and we do
# not need to provide a custom paintEvent().
# We use QStyledItemDelegate as our base class, so that we benefit from the
# default delegate implementation. We could also have used
# QAbstractItemDelegate, if we had wanted to start completely from scratch.
#
# Examples how to create e.g. of SpinBoxdelegate in native Qt:
# http://qt.developpez.com/doc/4.7/itemviews-spinboxdelegate/
# and a similar python implementation:
# https://github.com/PySide/Examples/blob/master/examples/itemviews/spinboxdelegate.py

# ==============================================================================
#                Explanation of the usage of QTableWidget
# ==============================================================================

# In general a table consist out of an object for viewing the data and out of an
# object where the data are saved. For viewing the data, there is the general
# QWidgetView class and for holding/storing the data you have to define a model.
# The model ensures to hold your data in the proper data type and give the
# possibility to separate the data from the display.
# The QTableWidget class is a specialized class to handle user input into an
# table. In order to handle the data, it contains already a model (due to that
# you can e.g. easily add rows and columns and modify the content of each cell).
# Therefore the model of a QTableWidget is a privite attribute and cannot be
# changed externally. If you want to define a custom model for QTableWidget you
# have to start from a QTableView and construct you own data handling in the
# model.
# Since QTableWidget has all the (nice and) needed requirements for us, a
# custom definition of QTableView with a Model is not needed.



class PulsedMeasurementMainWindow(QtWidgets.QMainWindow):
    def __init__(self):
        # Get the path to the *.ui file
        this_dir = os.path.dirname(__file__)
        ui_file = os.path.join(this_dir, 'ui_pulsed_maingui.ui')

        # Load it
        super(PulsedMeasurementMainWindow, self).__init__()

        uic.loadUi(ui_file, self)
        self.show()

class BlockSettingDialog(QtWidgets.QDialog):
    def __init__(self):
        # Get the path to the *.ui file
        this_dir = os.path.dirname(__file__)
        ui_file = os.path.join(this_dir, 'ui_pulsed_main_gui_settings_block_gen.ui')

        # Load it
        super(BlockSettingDialog, self).__init__()

        uic.loadUi(ui_file, self)

class AnalysisSettingDialog(QtWidgets.QDialog):
    def __init__(self):
        # Get the path to the *.ui file
        this_dir = os.path.dirname(__file__)
        ui_file = os.path.join(this_dir, 'ui-pulsed-main-gui-settings-analysis.ui')

        # Load it
        super(AnalysisSettingDialog, self).__init__()

        uic.loadUi(ui_file, self)

class PredefinedMethodsDialog(QtWidgets.QDialog):
    def __init__(self):
        # Get the path to the *.ui file
        this_dir = os.path.dirname(__file__)
        ui_file = os.path.join(this_dir, 'ui_predefined_methods.ui')

        # Load it
        super(PredefinedMethodsDialog, self).__init__()

        uic.loadUi(ui_file, self)

class PredefinedMethodsConfigDialog(QtWidgets.QDialog):
    def __init__(self):
        # Get the path to the *.ui file
        this_dir = os.path.dirname(__file__)
        ui_file = os.path.join(this_dir, 'ui-predefined_methods_config.ui')

        # Load it
        super(PredefinedMethodsConfigDialog, self).__init__()

        uic.loadUi(ui_file, self)

class PulsedMeasurementGui(GUIBase):
    """ This is the main GUI Class for pulsed measurements. """

    _modclass = 'PulsedMeasurementGui'
    _modtype = 'gui'

    sigUploadToDevice = QtCore.Signal(str)
    sigLoadToChannel = QtCore.Signal(str)
    sigSampleEnsemble = QtCore.Signal(str, bool, bool)

    ## declare connectors
    _in = {'sequencegeneratorlogic': 'SequenceGeneratorLogic',
            'savelogic': 'SaveLogic',
            'pulsedmeasurementlogic': 'PulsedMeasurementLogic'
            }

    def __init__(self, config, **kwargs):
        super().__init__(config=config, **kwargs)

        self.log.info('The following configuration was found.')

        # checking for the right configuration
        for key in config.keys():
            self.log.info('{0}: {1}'.format(key,config[key]))

        #locking for thread safety
        self.threadlock = Mutex()

        # that variable is for testing issues and can be deleted if not needed:
        self._write_chunkwise = False

    def on_activate(self, e=None):
        """ Initialize, connect and configure the pulsed measurement GUI.

        @param object e: Fysom.event object from Fysom class.
                         An object created by the state machine module Fysom,
                         which is connected to a specific event (have a look in
                         the Base Class). This object contains the passed event,
                         the state before the event happened and the destination
                         of the state which should be reached after the event
                         had happened.

        Establish general connectivity and activate the different tabs of the
        GUI.
        """

        self._pulsed_meas_logic  = self.get_in_connector('pulsedmeasurementlogic')
        self._seq_gen_logic = self.get_in_connector('sequencegeneratorlogic')
        self._save_logic = self.get_in_connector('savelogic')

        self._mw = PulsedMeasurementMainWindow()


        # each tab/section has its own activation methods:
        self._activate_analysis_settings_ui(e)
        self._activate_analysis_ui(e)

        self._activate_pulse_generator_settings_ui(e)
        self._activate_pulse_generator_ui(e)

        self._activate_sequence_settings_ui(e)
        self._activate_sequence_generator_ui(e)

        self._activate_pulse_extraction_settings_ui(e)
        self._activate_pulse_extraction_ui(e)

        self.show()


    def on_deactivate(self, e):
        """ Undo the Definition, configuration and initialisation of the pulsed
            measurement GUI.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.

        This deactivation disconnects all the graphic modules, which were
        connected in the initUI method.
        """

        # each tab/section has its own deactivation methods:
        self._deactivate_analysis_settings_ui(e)
        self._deactivate_analysis_ui(e)

        self._deactivate_pulse_generator_settings_ui(e)
        self._deactivate_pulse_generator_ui(e)

        self._deactivate_sequence_settings_ui(e)
        self._deactivate_sequence_generator_ui(e)

        self._deactivate_pulse_extraction_settings_ui(e)
        self._deactivate_pulse_extraction_ui(e)


        self._mw.close()

    def show(self):
        """Make main window visible and put it above all other windows. """

        QtWidgets.QMainWindow.show(self._mw)
        self._mw.activateWindow()
        self._mw.raise_()




    ###########################################################################
    ###     Methods related to Settings for the 'Pulse Generator' Tab:      ###
    ###########################################################################


    def _activate_pulse_generator_settings_ui(self, e):

        """ Initialize, connect and configure the Settings for the
            'Pulse Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """

        self._bs = BlockSettingDialog() # initialize the block settings
        self._bs.accepted.connect(self.apply_block_settings)
        self._bs.rejected.connect(self.keep_former_block_settings)
        self._bs.buttonBox.button(QtWidgets.QDialogButtonBox.Apply).clicked.connect(self.apply_block_settings)

        # # load in the possible channel configurations into the config
        # pulser_constr = self.get_hardware_constraints()
        # activation_config = self._seq_gen_logic.activation_config
        # self._bs.activation_config_ComboBox.clear()
        # self._bs.activation_config_ComboBox.addItems(list(pulser_constr['activation_config']))
        # # set ComboBox index to init value of logic
        # for index, config_name in enumerate(pulser_constr['activation_config']):
        #     if pulser_constr['activation_config'][config_name] == activation_config:
        #         self._bs.activation_config_ComboBox.setCurrentIndex(index)
        #         break
        #
        # self._bs.activation_config_ComboBox.currentIndexChanged.connect(self._update_channel_display)

        self._bs.use_interleave_CheckBox.setChecked(self._pulsed_meas_logic.get_interleave())
        self._bs.use_interleave_CheckBox.stateChanged.connect(self._interleave_changed)

        # create the Predefined methods Dialog
        self._pm = PredefinedMethodsDialog()
        self._predefined_methods_list = []  # here are all the names saved of
                                            # the created predefined methods.

        # create a config for the predefined methods:
        self._pm_cfg = PredefinedMethodsConfigDialog()

        # Add in the settings menu within the groupbox widget all the available
        # math_functions, based on the list from the Logic. Right now, the GUI
        # objects are inserted the 'hard' way, like it is done in the
        # Qt-Designer.

        # FIXME: Make a nicer way of displaying the available functions, maybe
        #        with a Table!

        _encoding = QtWidgets.QApplication.UnicodeUTF8
        objectname = self._bs.objectName()
        for index, func_name in enumerate(self.get_func_config_list()):

            name_label = 'func_'+ str(index)
            setattr(self._bs, name_label, QtWidgets.QLabel(self._bs.groupBox))
            label = getattr(self._bs, name_label)
            label.setObjectName(name_label)
            self._bs.gridLayout_3.addWidget(label, index, 0, 1, 1)
            label.setText(QtWidgets.QApplication.translate(objectname, func_name, None, _encoding))

            name_checkbox = 'checkbox_'+ str(index)
            setattr(self._bs, name_checkbox, QtWidgets.QCheckBox(self._bs.groupBox))
            checkbox = getattr(self._bs, name_checkbox)
            checkbox.setObjectName(name_checkbox)
            self._bs.gridLayout_3.addWidget(checkbox, index, 1, 1, 1)
            checkbox.setText(QtWidgets.QApplication.translate(objectname, '', None, _encoding))

        # make the first 4 Functions as default.
        # FIXME: the default functions, must be passed as a config

        for index in range(4):
            name_checkbox = 'checkbox_'+ str(index)
            checkbox = getattr(self._bs, name_checkbox)
            checkbox.setCheckState(QtCore.Qt.Checked)

    def _deactivate_pulse_generator_settings_ui(self, e):
        """ Disconnects the configuration of the Settings for the
            'Pulse Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        self._bs.accepted.disconnect()
        self._bs.rejected.disconnect()
        self._bs.buttonBox.button(QtWidgets.QDialogButtonBox.Apply).clicked.disconnect()
        self._bs.close()

    def _interleave_changed(self, state):
        """ React on a Interleave state change.

        @param int state: 0 for False and 1 or 2 for True.
        """
        self._seq_gen_logic.set_interleave(bool(state))

    def show_block_settings(self):
        """ Opens the block settings menue. """
        self._bs.exec_()

    def show_predefined_methods(self):
        """ Opens the predefined methods Window."""
        self._pm.show()
        self._pm.raise_()

    def show_predefined_methods_config(self):
        """ Opens the Window for the config of predefined methods."""
        self._pm_cfg.show()
        self._pm_cfg.raise_()

    def keep_former_predefined_methods(self):

        for method_name in self._predefined_methods_list:
            groupbox = self._get_ref_groupbox_predefined_methods(method_name)
            checkbox = self._get_ref_checkbox_predefined_methods_config(method_name)

            checkbox.setChecked(groupbox.isVisible())

    def update_predefined_methods(self):

        for method_name in self._predefined_methods_list:
            groupbox = self._get_ref_groupbox_predefined_methods(method_name)
            checkbox = self._get_ref_checkbox_predefined_methods_config(method_name)

            groupbox.setVisible(checkbox.isChecked())


    def apply_block_settings(self):
        """ Write new block settings from the gui to the file. """
        if self._bs.use_saupload_CheckBox.isChecked():
            self._set_visibility_saupload_button_pulse_gen(state=True)
        else:
            self._set_visibility_saupload_button_pulse_gen(state=False)


    def keep_former_block_settings(self):
        """ Keep the old block settings and restores them in the gui. """
        if self._mw.sample_ensemble_PushButton.isHidden():
            self._bs.use_saupload_CheckBox.setChecked(True)
        else:
            self._bs.use_saupload_CheckBox.setChecked(False)

    def _set_visibility_saupload_button_pulse_gen(self, state):
        """ Set whether the sample Uplaod and load Buttons should be visible or not

        @param bool state:
        @return:
        """
        #FIXME: Implement that functionality
        pass

    def get_current_function_list(self):
        """ Retrieve the functions, which are chosen by the user.

        @return: list[] with strings of the used functions. Names are based on
                 the passed func_config dict from the logic. Depending on the
                 settings, a current function list is generated.
        """
        current_functions = []

        for index, func_name in enumerate(self.get_func_config_list()):
            name_checkbox = 'checkbox_'+ str(index)
            checkbox = getattr(self._bs, name_checkbox)
            if checkbox.isChecked():
                name_label = 'func_'+ str(index)
                func = getattr(self._bs, name_label)
                current_functions.append(func.text())

        return current_functions

    ###########################################################################
    ###   Methods related to Tab 'Pulse Generator' in the Pulsed Window:    ###
    ###########################################################################

    def _activate_pulse_generator_ui(self, e):
        """ Initialize, connect and configure the 'Pulse Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        # connect the signal for a change of the generator parameters
        self._mw.gen_sample_freq_DSpinBox.editingFinished.connect(
            self.generator_sample_rate_changed)
        self._mw.gen_laserchannel_ComboBox.currentIndexChanged.connect(
            self.generator_laser_channel_changed)
        self._mw.gen_activation_config_ComboBox.currentIndexChanged.connect(
            self.generator_activation_config_changed)

        # connect signal for file upload and loading of pulser device
        self.sigSampleEnsemble.connect(self._seq_gen_logic.sample_pulse_block_ensemble)
        self.sigUploadToDevice.connect(self._pulsed_meas_logic.upload_asset)
        self.sigLoadToChannel.connect(self._pulsed_meas_logic.load_asset)

        # set them to maximum or minimum
        self._mw.curr_block_bins_SpinBox.setMaximum(2**31 -1)
        self._mw.curr_block_laserpulses_SpinBox.setMaximum(2**31 -1)
        self._mw.curr_ensemble_bins_SpinBox.setMaximum(2**31 -1)
        self._mw.curr_ensemble_length_DSpinBox.setMaximum(np.inf)

        # connect the signals for the block editor:
        self._mw.block_add_last_PushButton.clicked.connect(self.block_editor_add_row_after_last)
        self._mw.block_del_last_PushButton.clicked.connect(self.block_editor_delete_row_last)
        self._mw.block_add_sel_PushButton.clicked.connect(self.block_editor_add_row_before_selected)
        self._mw.block_del_sel_PushButton.clicked.connect(self.block_editor_delete_row_selected)
        self._mw.block_clear_PushButton.clicked.connect(self.block_editor_clear_table)

        self._mw.curr_block_load_PushButton.clicked.connect(self.load_pulse_block_clicked)
        self._mw.curr_block_del_PushButton.clicked.connect(self.delete_pulse_block_clicked)

        # connect the signals for the block organizer:
        self._mw.organizer_add_last_PushButton.clicked.connect(self.block_organizer_add_row_after_last)
        self._mw.organizer_del_last_PushButton.clicked.connect(self.block_organizer_delete_row_last)
        self._mw.organizer_add_sel_PushButton.clicked.connect(self.block_organizer_add_row_before_selected)
        self._mw.organizer_del_sel_PushButton.clicked.connect(self.block_organizer_delete_row_selected)
        self._mw.organizer_clear_PushButton.clicked.connect(self.block_organizer_clear_table)

        self._mw.curr_ensemble_load_PushButton.clicked.connect(self.load_pulse_block_ensemble_clicked)
        self._mw.curr_ensemble_del_PushButton.clicked.connect(self.delete_pulse_block_ensemble_clicked)

        # connect the signals for the "Upload on device" section
        self._mw.sample_ensemble_PushButton.clicked.connect(self.sample_ensemble_clicked)
        self._mw.upload_to_device_PushButton.clicked.connect(self.upload_to_device_clicked)
        self._mw.load_channel_PushButton.clicked.connect(self.load_into_channel_clicked)

        # connect the menu to the actions:
        self._mw.action_Settings_Block_Generation.triggered.connect(self.show_block_settings)
        self._mw.actionOpen_Predefined_Methods.triggered.connect(self.show_predefined_methods)
        self._mw.actionConfigure_Predefined_Methods.triggered.connect(self.show_predefined_methods_config)

        # emit a trigger event when for all mouse click and keyboard click events:
        self._mw.block_editor_TableWidget.setEditTriggers(QtWidgets.QAbstractItemView.AllEditTriggers)
        self._mw.block_organizer_TableWidget.setEditTriggers(QtWidgets.QAbstractItemView.AllEditTriggers)
        # self._mw.seq_editor_TableWidget.setEditTriggers(QtWidgets.QAbstractItemView.AllEditTriggers)

        # connect update signals of the sequence_generator_logic
        self._seq_gen_logic.signal_block_list_updated.connect(self.update_block_list)
        self._seq_gen_logic.signal_ensemble_list_updated.connect(self.update_ensemble_list)
        self._seq_gen_logic.sigSampleEnsembleComplete.connect(self.sample_ensemble_finished)

        # connect update signals of the pulsed_measurement_logic
        self._pulsed_meas_logic.sigUploadAssetComplete.connect(self.upload_to_device_finished)
        self._pulsed_meas_logic.sigLoadAssetComplete.connect(self.load_into_channel_finished)

        # Definition of this parameter. See fore more explanation in file
        # sampling_functions.py
        length_def = {'unit': 's', 'init_val': 0.0, 'min': 0.0, 'max': np.inf,
                      'view_stepsize': 1e-9, 'dec': 8, 'unit_prefix': 'n', 'type': float}
        rep_def = {'unit': '#', 'init_val': 0, 'min': 0, 'max': (2 ** 31 - 1),
                   'view_stepsize': 1, 'dec': 0, 'unit_prefix': '', 'type': int}
        bool_def = {'unit': 'bool', 'init_val': 0, 'min': 0, 'max': 1,
                    'view_stepsize': 1, 'dec': 0, 'unit_prefix': '', 'type': bool}
        # make a parameter constraint dict for the additional parameters of the
        # Pulse_Block_Ensemble objects:
        self._add_pbe_param = OrderedDict()
        self._add_pbe_param['length'] = length_def
        self._add_pbe_param['increment'] = length_def
        self._add_pbe_param['use as tick?'] = bool_def
        # make a parameter constraint dict for the additional parameters of the
        # Pulse_Block objects:
        self._add_pb_param = OrderedDict()
        self._add_pb_param['repetition'] = rep_def

        # create all the needed control widgets on the fly and connect their
        # actions to each other:
        self._create_control_for_predefined_methods()
        self._create_pulser_on_off_buttons()
        # self._create_radiobuttons_for_channels()
        self._create_pushbutton_clear_device()
        self._create_current_asset_QLabel()
        # filename tag input widget
        self._create_save_tag_input()

        self.keep_former_block_settings()

        self._set_block_editor_columns()
        self._set_organizer_columns()

        # connect all the needed signal to methods:
        self._mw.curr_block_generate_PushButton.clicked.connect(self.generate_pulse_block_clicked)
        self._mw.curr_ensemble_generate_PushButton.clicked.connect(self.generate_pulse_block_ensemble_clicked)
        self._mw.block_editor_TableWidget.itemChanged.connect(self._update_current_pulse_block)

        self._mw.block_organizer_TableWidget.itemChanged.connect(self._update_current_pulse_block_ensemble)
        self._mw.pulser_on_PushButton.clicked.connect(self.pulser_on_clicked)
        self._mw.pulser_off_PushButton.clicked.connect(self.pulser_off_clicked)
        self._mw.clear_device_PushButton.clicked.connect(self.clear_device_clicked)

        # the loaded asset will be updated in the GUI:
        self._pulsed_meas_logic.sigLoadedAssetUpdated.connect(self.update_loaded_asset)

        # initialize the lists of available blocks, ensembles and sequences
        self.update_block_list()
        self.update_ensemble_list()

        # connect the actions of the Config for Predefined methods:
        self._pm_cfg.accepted.connect(self.update_predefined_methods)
        self._pm_cfg.rejected.connect(self.keep_former_predefined_methods)
        self._pm_cfg.buttonBox.button(QtWidgets.QDialogButtonBox.Apply).clicked.connect(self.update_predefined_methods)

        # set the chosen predefined method to be visible:
        for predefined_method in self._predefined_methods_list:
            if predefined_method in self._statusVariables:
                checkbox = self._get_ref_checkbox_predefined_methods_config(predefined_method)
                checkbox.setChecked(self._statusVariables[predefined_method])

        self.update_predefined_methods()

        # Apply hardware constraints to input widgets
        self._gen_apply_hardware_constraints()

        # Fill initial values from logic into input widgets
        self._init_generator_values()

        # Modified by me
        # self._mw.init_block_TableWidget.viewport().setAttribute(QtCore.Qt.WA_Hover)
        # self._mw.repeat_block_TableWidget.viewport().setAttribute(QtCore.Qt.WA_Hover)

    def _deactivate_pulse_generator_ui(self, e):
        """ Disconnects the configuration for 'Pulse Generator Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        #FIXME: implement a proper deactivation for that.
        self._pm.close()
        self._pm_cfg.close()

        # save which predefined method should be visible:
        for predefined_method in self._predefined_methods_list:
            checkbox = self._get_ref_checkbox_predefined_methods_config(predefined_method)
            self._statusVariables[predefined_method] = checkbox.isChecked()

    def _create_save_tag_input(self):
        """ Add save file tag input box. """
        self._mw.save_tag_LineEdit = QtWidgets.QLineEdit()
        self._mw.save_tag_LineEdit.setMaximumWidth(200)
        self._mw.save_ToolBar.addWidget(self._mw.save_tag_LineEdit)

    def _create_pulser_on_off_buttons(self):
        """ Create Buttons for Pulser on and Pulser Off and add to toolbar. """

        self._mw.pulser_on_PushButton =  QtWidgets.QPushButton(self._mw)
        self._mw.pulser_on_PushButton.setText('Pulser On')
        self._mw.pulser_on_PushButton.setToolTip('Switch on the device.\n'
                                                 'The channels, which will be activated\n'
                                                 'are displayed on the right.')
        self._mw.control_ToolBar.addWidget(self._mw.pulser_on_PushButton)


        self._mw.pulser_off_PushButton = QtWidgets.QPushButton(self._mw)
        self._mw.pulser_off_PushButton.setText('Pulser Off')
        self._mw.pulser_off_PushButton.setToolTip('Switch off the device.\n'
                                                  'The channels, which will be deactivated\n'
                                                  'are displayed on the right.')
        self._mw.control_ToolBar.addWidget(self._mw.pulser_off_PushButton)

    def _create_pushbutton_clear_device(self):
        """ Create the  Clear Button to clear the device. """

        self._mw.clear_device_PushButton = QtWidgets.QPushButton(self._mw)
        self._mw.clear_device_PushButton.setText('Clear Pulser')
        self._mw.clear_device_PushButton.setToolTip('Clear the Pulser Device Memory\n'
                                                    'from all loaded files.')
        self._mw.control_ToolBar.addWidget(self._mw.clear_device_PushButton)

    def _gen_apply_hardware_constraints(self):

        """
        Retrieve the constraints from pulser hardware and apply these constraints to the pulse
        generator GUI elements.
        """
        pulser_constr = self._pulsed_meas_logic.get_pulser_constraints()
        sample_min = pulser_constr['sample_rate']['min'] / 1e6
        sample_max = pulser_constr['sample_rate']['max'] / 1e6
        sample_step = pulser_constr['sample_rate']['step'] / 1e6

        self._mw.gen_sample_freq_DSpinBox.setMinimum(sample_min)
        self._mw.gen_sample_freq_DSpinBox.setMaximum(sample_max)
        self._mw.gen_sample_freq_DSpinBox.setSingleStep(sample_step)
        self._mw.gen_sample_freq_DSpinBox.setDecimals( (np.log10(sample_step)* -1) )

        # configure the sequence generator logic to use the hardware compatible file formats
        self._seq_gen_logic.waveform_format = pulser_constr['waveform_format']
        self._seq_gen_logic.sequence_format = pulser_constr['sequence_format']

    def _init_generator_values(self):

        """
        This method will retrieve the initial values from the sequence_generator_logic and
        initializes all input GUI elements with these values.
        """
        # get init values from logic
        sample_rate = self._seq_gen_logic.sample_rate
        laser_channel = self._seq_gen_logic.laser_channel
        activation_config = self._seq_gen_logic.activation_config
        # get hardware constraints
        avail_activation_configs = self._pulsed_meas_logic.get_pulser_constraints()['activation_config']
        # init GUI elements
        # set sample rate
        self._mw.gen_sample_freq_DSpinBox.setValue(sample_rate/1e6)
        self.generator_sample_rate_changed()
        # set activation_config. This will also update the laser channel and number of channels
        # from the logic.
        self._mw.gen_activation_config_ComboBox.blockSignals(True)
        self._mw.gen_activation_config_ComboBox.clear()
        self._mw.gen_activation_config_ComboBox.addItems(list(avail_activation_configs))
        found_config = False
        for config in avail_activation_configs:
            if avail_activation_configs[config] == activation_config:
                index = self._mw.gen_activation_config_ComboBox.findText(config)
                self._mw.gen_activation_config_ComboBox.setCurrentIndex(index)
                found_config = True
                break
        if not found_config:
            self._mw.gen_activation_config_ComboBox.setCurrentIndex(0)
        self._mw.gen_activation_config_ComboBox.blockSignals(False)
        self.generator_activation_config_changed()

    def _create_current_asset_QLabel(self):
        """ Creaate a QLabel Display for the currently loaded asset for the toolbar. """
        self._mw.current_loaded_asset_Label = self._create_QLabel(self._mw, '  No Asset Loaded')
        self._mw.current_loaded_asset_Label.setToolTip('Display the currently loaded asset.')
        self._mw.control_ToolBar.addWidget(self._mw.current_loaded_asset_Label)

    def update_loaded_asset(self):
        """ Check the current loaded asset from the logic and update the display. """

        if self._mw.current_loaded_asset_Label is None:
            self._create_current_asset_QLabel()
        label = self._mw.current_loaded_asset_Label
        asset_name = self._pulsed_meas_logic.loaded_asset_name
        if asset_name is None:
            asset = None
        else:
            asset = self._seq_gen_logic.get_saved_asset(asset_name)
            if asset is None:
                self._pulsed_meas_logic.clear_pulser()

        if asset is None:
            label.setText('  No asset loaded')
        elif type(asset).__name__ is 'Pulse_Block_Ensemble':
            label.setText('  {0} (Pulse_Block_Ensemble)'.format(asset.name))
        elif type(asset).__name__ is 'Pulse_Sequence':
            label.setText('  {0} (Pulse_Sequence)'.format(asset.name))
        else:
            label.setText('  Unknown asset type')

    def pulser_on_clicked(self):
        """ Switch on the pulser output. """
        self._pulsed_meas_logic.pulse_generator_on()

    def pulser_off_clicked(self):
        """ Switch off the pulser output. """
        self._pulsed_meas_logic.pulse_generator_off()

    def get_func_config_list(self):
        """ Retrieve the possible math functions as a list of strings.

        @return: list[] with string entries as function names.
        """
        return list(self._seq_gen_logic.func_config)

    def get_current_pulse_block_list(self):
        """ Retrieve the available Pulse_Block objects from the logic.

        @return: list[] with strings descriping the available Pulse_Block
                        objects.
        """
        return self._seq_gen_logic.saved_pulse_blocks

    def get_current_ensemble_list(self):
        """ Retrieve the available Pulse_Block_Ensemble objects from the logic.

        @return: list[] with strings descriping the available Pulse_Block_Ensemble objects.
        """
        return self._seq_gen_logic.saved_pulse_block_ensembles

    def generator_sample_rate_changed(self):

        """
        Is called whenever the sample rate for the sequence generation has changed in the GUI
        """
        self._mw.gen_sample_freq_DSpinBox.blockSignals(True)
        sample_rate = self._mw.gen_sample_freq_DSpinBox.value()*1e6
        actual_sample_rate = self._seq_gen_logic.set_sample_rate(sample_rate)
        self._mw.gen_sample_freq_DSpinBox.setValue(actual_sample_rate/1e6)
        self._mw.gen_sample_freq_DSpinBox.blockSignals(False)
        self._update_current_pulse_block()
        self._update_current_pulse_block_ensemble()
        # self._update_current_pulse_sequence()

    def generator_laser_channel_changed(self):

        """
        Is called whenever the laser channel for the sequence generation has changed in the GUI
        """
        self._mw.gen_laserchannel_ComboBox.blockSignals(True)
        laser_channel = self._mw.gen_laserchannel_ComboBox.currentText()
        actual_laser_channel = self._seq_gen_logic.set_laser_channel(laser_channel)
        index = self._mw.gen_laserchannel_ComboBox.findText(actual_laser_channel)
        self._mw.gen_laserchannel_ComboBox.setCurrentIndex(index)
        self._mw.gen_laserchannel_ComboBox.blockSignals(False)
        self._update_current_pulse_block()
        self._update_current_pulse_block_ensemble()

    def generator_activation_config_changed(self):

        """
        Is called whenever the channel config for the sequence generation has changed in the GUI
        """
        self._mw.block_editor_TableWidget.blockSignals(True)
        # retreive GUI inputs
        new_config_name = self._mw.gen_activation_config_ComboBox.currentText()
        new_channel_config = self._pulsed_meas_logic.get_pulser_constraints()['activation_config'][new_config_name]
        # set chosen config in sequence generator logic
        self._seq_gen_logic.set_activation_config(new_channel_config)
        # set display new config alongside with number of channels
        display_str = ''
        for chnl in new_channel_config:
            display_str += chnl + ' | '
        display_str = display_str[:-3]
        self._mw.gen_activation_config_LineEdit.setText(display_str)
        self._mw.gen_analog_channels_SpinBox.setValue(self._seq_gen_logic.analog_channels)
        self._mw.gen_digital_channels_SpinBox.setValue(self._seq_gen_logic.digital_channels)
        # and update the laser channel combobx
        self._mw.gen_laserchannel_ComboBox.blockSignals(True)
        self._mw.gen_laserchannel_ComboBox.clear()
        self._mw.gen_laserchannel_ComboBox.addItems(new_channel_config)
        # set the laser channel in the ComboBox
        laser_channel = self._seq_gen_logic.laser_channel
        index = self._mw.gen_laserchannel_ComboBox.findText(laser_channel)
        self._mw.gen_laserchannel_ComboBox.setCurrentIndex(index)
        self._mw.gen_laserchannel_ComboBox.blockSignals(False)

        # reshape block editor table
        self._set_block_editor_columns()

        self._mw.block_editor_TableWidget.blockSignals(False)

        self._update_current_pulse_block()
        self._update_current_pulse_block_ensemble()

    def sample_ensemble_clicked(self):
        """
        This method is called when the user clicks on "sample"
        """
        # disable the "sample ensemble" button until the sampling process is finished.
        if self._mw.sample_ensemble_PushButton.isEnabled():
            self._mw.sample_ensemble_PushButton.setEnabled(False)
        # Also disable the "upload" and "load" buttons to prevent loading of a previously sampled
        # file.
        if self._mw.upload_to_device_PushButton.isEnabled():
            self._mw.upload_to_device_PushButton.setEnabled(False)
        if self._mw.load_channel_PushButton.isEnabled():
            self._mw.load_channel_PushButton.setEnabled(False)
        # Get the ensemble name to be uploaded from the ComboBox
        ensemble_name = self._mw.upload_ensemble_ComboBox.currentText()
        # Sample the ensemble via logic module
        self.sigSampleEnsemble.emit(ensemble_name, True, self._write_chunkwise)
        return

    def sample_ensemble_finished(self):
        """
        Reenables the "sample ensemble" button once the sampling process is finished.
        """
        if not self._mw.sample_ensemble_PushButton.isEnabled():
            self._mw.sample_ensemble_PushButton.setEnabled(True)
        if not self._mw.upload_to_device_PushButton.isEnabled():
            self._mw.upload_to_device_PushButton.setEnabled(True)
        if not self._mw.load_channel_PushButton.isEnabled():
            self._mw.load_channel_PushButton.setEnabled(True)
        return

    def upload_to_device_clicked(self):
        """
        This method is called when the user clicks on "upload to device"
        """
        # disable the "upload to device" button until the upload process is finished.
        if self._mw.upload_to_device_PushButton.isEnabled():
            self._mw.upload_to_device_PushButton.setEnabled(False)
        # Get the ensemble name to be uploaded from the ComboBox
        ensemble_name = self._mw.upload_ensemble_ComboBox.currentText()
        # Upload the ensemble waveform via logic module.
        self.sigUploadToDevice.emit(ensemble_name)
        return

    def upload_to_device_finished(self):
        """
        Reenables the "upload to device" button once the upload process is finished.
        """
        if not self._mw.upload_to_device_PushButton.isEnabled():
            self._mw.upload_to_device_PushButton.setEnabled(True)
        return

    def load_into_channel_clicked(self):
        """
        This method is called when the user clicks on "load to channel"
        """
        # disable the "load to channel" button until the load process is finished.
        if self._mw.load_channel_PushButton.isEnabled():
            self._mw.load_channel_PushButton.setEnabled(False)

        # Get the asset name to be uploaded from the ComboBox
        asset_name = self._mw.upload_ensemble_ComboBox.currentText()

        # FIXME: Implement a proper GUI element (upload center) to manually assign assets to channels
        # Right now the default is chosen to invoke channel assignment from the Ensemble/Sequence object

        # stop the pulser hardware output if it is running
        self._pulsed_meas_logic.pulse_generator_off()

        # configure pulser with the same settings that were chosen during ensemble generation.
        # This information is stored in the ensemble object.
        asset_obj = self._seq_gen_logic.get_saved_asset(asset_name)

        # Set proper activation config
        activation_config = asset_obj.activation_config
        config_name = None
        avail_configs = self._pulsed_meas_logic.get_pulser_constraints()['activation_config']
        for config in avail_configs:
            if activation_config == avail_configs[config]:
                config_name = config
                break
        if config_name != self._mw.pulser_activation_config_ComboBox.currentText():
            index = self._mw.pulser_activation_config_ComboBox.findText(config_name)
            self._mw.pulser_activation_config_ComboBox.setCurrentIndex(index)

        # Set proper sample rate
        if self._pulsed_meas_logic.sample_rate != asset_obj.sample_rate:
            self._mw.pulser_sample_freq_DSpinBox.setValue(asset_obj.sample_rate/1e6)
            self.pulser_sample_rate_changed()


        self._pulsed_meas_logic.set_num_of_lasers(asset_obj.number_of_lasers)
        self._pulsed_meas_logic.sequence_length_s = asset_obj.length_bins / asset_obj.sample_rate

        # Load asset into channles via logic module
        self.sigLoadToChannel.emit(asset_name)
        return

    def load_into_channel_finished(self):
        """
        Reenables the "load to channel" button once the load process is finished.
        """
        if not self._mw.load_channel_PushButton.isEnabled():
            self._mw.load_channel_PushButton.setEnabled(True)
        return

    def update_block_list(self):
        """
        This method is called upon signal_block_list_updated emit of the sequence_generator_logic.
        Updates all ComboBoxes showing generated blocks.
        """
        # updated list of all generated blocks
        new_list = self._seq_gen_logic.saved_pulse_blocks
        # update saved_blocks_ComboBox items
        self._mw.saved_blocks_ComboBox.clear()
        self._mw.saved_blocks_ComboBox.addItems(new_list)
        return

    def update_ensemble_list(self):

        """
        This method is called upon signal_ensemble_list_updated emit of the sequence_generator_logic.
        Updates all ComboBoxes showing generated block_ensembles.
        """
        # updated list of all generated ensembles
        new_list = self._seq_gen_logic.saved_pulse_block_ensembles
        # update upload_ensemble_ComboBox items
        self._mw.upload_ensemble_ComboBox.clear()
        self._mw.upload_ensemble_ComboBox.addItems(new_list)
        # update saved_ensembles_ComboBox items
        self._mw.saved_ensembles_ComboBox.clear()
        self._mw.saved_ensembles_ComboBox.addItems(new_list)
        # Set active index of the ComboBoxes to the currently shown/last created ensemble
        if self._seq_gen_logic.current_ensemble is not None:
            # get last generated and currently shown ensemble name from logic
            current_ensemble_name = self._seq_gen_logic.current_ensemble.name
            # identify the corresponding index within the ComboBox
            index_to_set = self._mw.upload_ensemble_ComboBox.findText(current_ensemble_name)
            # Set index inside the ComboBox
            self._mw.upload_ensemble_ComboBox.setCurrentIndex(index_to_set)
            self._mw.saved_ensembles_ComboBox.setCurrentIndex(index_to_set)
        else:
            # set the current ensemble in the logic and all ComboBoxes to the currently
            # shown ensemble in the upload_ensemble_ComboBox.
            current_ensemble_name = self._mw.upload_ensemble_ComboBox.currentText()
            index_to_set = self._mw.saved_ensembles_ComboBox.findText(current_ensemble_name)
            self._mw.saved_ensembles_ComboBox.setCurrentIndex(index_to_set)
            self.load_pulse_block_ensemble_clicked()
        return

    def clear_device_clicked(self):
        """ Delete all loaded files in the device's current memory. """
        self._pulsed_meas_logic.clear_pulser()

    def generate_pulse_block_object(self, pb_name, block_matrix):

        """ Generates from an given table block_matrix a block_object.

        @param pb_name: string, Name of the created Pulse_Block Object
        @param block_matrix: structured np.array, matrix, in which the
                             construction plan for Pulse_Block_Element objects
                             are displayed as rows.

        Three internal dict where used, to get all the needed information about
        how parameters, functions are defined (_add_pbe_param,func_config and
        _unit_prefix).
        The dict cfg_param_pbe (configuration parameter declaration dict for
        Pulse_Block_Element) stores how the objects are appearing in the GUI.
        This dict enables the proper access to the desired element in the GUI.
        """

        # list of all the pulse block element objects
        pbe_obj_list = [None] * len(block_matrix)

        # seperate digital and analogue channels
        activation_config = self._seq_gen_logic.activation_config
        analog_chnl_names = [chnl for chnl in activation_config if 'a_ch' in chnl]
        digital_chnl_names = [chnl for chnl in activation_config if 'd_ch' in chnl]

        for row_index, row in enumerate(block_matrix):
            # check how length is displayed and convert it to bins:
            length_time = row[self._cfg_param_pbe['length']]
            init_length_bins = int(np.round(length_time * self._seq_gen_logic.sample_rate))

            # check how increment is displayed and convert it to bins:
            increment_time = row[self._cfg_param_pbe['increment']]
            increment_bins = int(np.round(increment_time * self._seq_gen_logic.sample_rate))

            # get the dict with all possible functions and their parameters:
            func_dict = self._seq_gen_logic.func_config

            # get the proper pulse_functions and its parameters:
            pulse_function = [None] * self._seq_gen_logic.analog_channels
            parameter_list = [None] * self._seq_gen_logic.analog_channels
            for num in range(self._seq_gen_logic.analog_channels):
                # get the number of the analogue channel according to the channel activation_config
                a_chnl_number = analog_chnl_names[num].split('ch')[-1]
                pulse_function[num] = row[self._cfg_param_pbe['function_' + a_chnl_number]].decode(
                    'UTF-8')

                # search for this function in the dictionary and get all the
                # parameter with their names in list:
                param_dict = func_dict[pulse_function[num]]
                parameters = {}
                for entry in list(param_dict):
                    # Obtain how the value is displayed in the table:
                    param_value = row[self._cfg_param_pbe[entry + '_' + a_chnl_number]]
                    parameters[entry] = param_value
                parameter_list[num] = parameters

            digital_high = [None] * self._seq_gen_logic.digital_channels
            for num in range(self._seq_gen_logic.digital_channels):
                # get the number of the digital channel according to the channel activation_config
                d_chnl_number = digital_chnl_names[num].split('ch')[-1]
                digital_high[num] = bool(row[self._cfg_param_pbe['digital_' + d_chnl_number]])

            use_as_tick = bool(row[self._cfg_param_pbe['use']])

            # create here actually the object with all the obtained information:
            pbe_obj_list[row_index] = Pulse_Block_Element(init_length_bins=init_length_bins,
                                                          increment_bins=increment_bins,
                                                          pulse_function=pulse_function,
                                                          digital_high=digital_high,
                                                          parameters=parameter_list,
                                                          use_as_tick=use_as_tick)

        pb_obj = Pulse_Block(pb_name, pbe_obj_list)
        # save block
        self._seq_gen_logic.save_block(pb_name, pb_obj)

    def generate_pulse_block_ensemble_object(self, ensemble_name, ensemble_matrix, rotating_frame=True):

        """
        Generates from an given table ensemble_matrix a ensemble object.

        @param str ensemble_name: Name of the created Pulse_Block_Ensemble object
        @param np.array ensemble_matrix: structured 2D np.array, matrix, in which the construction
                                         plan for Pulse_Block objects are displayed as rows.
        @param str laser_channel: the channel controlling the laser
        @param bool rotating_frame: optional, whether the phase preservation is mentained
                                    throughout the sequence.

        The dict cfg_param_pb (configuration parameter declaration dict for Pulse_Block) stores how
        the objects are related to each other in a sequencial way. That relationship is used in the
        GUI, where the parameters appear in columns.
        This dict enables the proper access to the desired element in the GUI.
        """

        # list of all the pulse block element objects
        pb_obj_list = [None] * len(ensemble_matrix)

        for row_index, row in enumerate(ensemble_matrix):
            pulse_block_name = row[self._cfg_param_pb['pulse_block']].decode('UTF-8')
            pulse_block_reps = row[self._cfg_param_pb['repetition']]
            # Fetch previously saved block object
            block = self._seq_gen_logic.get_pulse_block(pulse_block_name)
            # Append block object along with repetitions to the block list
            pb_obj_list[row_index] = (block, pulse_block_reps)

        # Create the Pulse_Block_Ensemble object
        pulse_block_ensemble = Pulse_Block_Ensemble(name=ensemble_name, block_list=pb_obj_list,
                                                    activation_config=self._seq_gen_logic.activation_config,
                                                    sample_rate=self._seq_gen_logic.sample_rate,
                                                    laser_channel=self._seq_gen_logic.laser_channel,
                                                    rotating_frame=rotating_frame)
        # save ensemble
        self._seq_gen_logic.save_ensemble(ensemble_name, pulse_block_ensemble)

    # -------------------------------------------------------------------------
    #           Methods for the Pulse Block Editor
    # -------------------------------------------------------------------------

    def _update_current_pulse_block(self):

        """ Update the current Pulse Block Info in the display. """
        length = 0.0 # in ns
        bin_length = 0
        col_ind = self._cfg_param_pbe['length']

        laser_channel = self._seq_gen_logic.laser_channel
        num_laser_ch = 0

        # Simple search routine:
        if 'a' in laser_channel:
            # extract with regular expression module the number from the
            # string:
            num = re.findall('\d+', laser_channel)
            laser_column = self._cfg_param_pbe['function_'+str(num[0])]
        elif 'd' in laser_channel:
            num = re.findall('\d+', laser_channel)
            laser_column = self._cfg_param_pbe['digital_'+str(num[0])]
        else:
            return

        # This bool is to prevent two consecutive laser on states to be counted as two laser pulses.
        laser_on = False
        # Iterate over the editor rows
        for row_ind in range(self._mw.block_editor_TableWidget.rowCount()):
            curr_length = self.get_element_in_block_table(row_ind, col_ind)
            curr_bin_length = int(np.round(curr_length*(self._seq_gen_logic.sample_rate)))
            length += curr_length
            bin_length += curr_bin_length

            laser_val =self.get_element_in_block_table(row_ind, laser_column)
            if laser_val in ('DC', 2):
                if not laser_on:
                    num_laser_ch += 1
                    laser_on = True
            else:
                laser_on = False

        #FIXME: The display unit will be later on set in the settings, so that
        #       one can choose which units are suiting the best. For now on it
        #       will be fixed to microns.

        self._mw.curr_block_length_DSpinBox.setValue(length*1e6) # in microns
        self._mw.curr_block_bins_SpinBox.setValue(bin_length)
        self._mw.curr_block_laserpulses_SpinBox.setValue(num_laser_ch)

    def _determine_needed_parameters(self):
        """ Determine the maximal number of needed parameters for desired functions.

        @return ('<biggest_func_name>, number_of_parameters)
        """

        # FIXME: Reimplement this function such that it will return the
        #       parameters of all needed functions and not take only the
        #       parameters of the biggest function. Then the return should be
        #       not the biggest function, but a set of all the needed
        #       parameters which is obtained from get_func_config()!


        curr_func_list = self.get_current_function_list()
        complete_func_config = self._seq_gen_logic.func_config

        num_max_param = 0
        biggest_func = ''

        for func in curr_func_list:
            if num_max_param < len(complete_func_config[func]):
                num_max_param = len(complete_func_config[func])
                biggest_func = func

        return (num_max_param, biggest_func)

    # -------------------------------------------------------------------------
    #           Methods for the Pulse Block Organizer
    # -------------------------------------------------------------------------

    def _update_current_pulse_block_ensemble(self):

        length_mu = 0.0  # in microseconds
        length_bin = 0
        num_laser_pulses = 0
        filesize_bytes = 0
        pulse_block_col = self._cfg_param_pb['pulse_block']

        reps_col = self._cfg_param_pb['repetition']

        if len(self._seq_gen_logic.saved_pulse_blocks) > 0:
            for row_ind in range(self._mw.block_organizer_TableWidget.rowCount()):
                pulse_block_name = self.get_element_in_organizer_table(row_ind, pulse_block_col)

                block_obj = self._seq_gen_logic.get_pulse_block(pulse_block_name)

                reps = self.get_element_in_organizer_table(row_ind, reps_col)

                # Calculate the length via the gaussian summation formula:
                length_bin = int(length_bin + block_obj.init_length_bins * (reps + 1) +
                             ((reps + 1) * ((reps + 1) + 1) / 2) * block_obj.increment_bins)

                # Calculate the number of laser pulses
                num_laser_pulses_block = 0
                if self._seq_gen_logic.laser_channel is None:
                    num_laser_pulses_block = 0
                elif 'd_ch' in self._seq_gen_logic.laser_channel:
                    # determine the laser channel index for the corresponding channel
                    digital_chnl_list = [chnl for chnl in self._seq_gen_logic.activation_config if
                                         'd_ch' in chnl]
                    laser_index = digital_chnl_list.index(self._seq_gen_logic.laser_channel)
                    # Iterate through the elements and count laser on state changes
                    # (no double counting)
                    laser_on = False
                    for elem in block_obj.element_list:
                        if laser_index >= len(elem.digital_high):
                            break
                        if elem.digital_high[laser_index] and not laser_on:
                            num_laser_pulses_block += 1
                            laser_on = True
                        elif not elem.digital_high[laser_index]:
                            laser_on = False
                elif 'a_ch' in self._seq_gen_logic.laser_channel:
                    # determine the laser channel index for the corresponding channel
                    analog_chnl_list = [chnl for chnl in self._seq_gen_logic.activation_config if
                                        'a_ch' in chnl]
                    laser_index = analog_chnl_list.index(self._seq_gen_logic.laser_channel)
                    # Iterate through the elements and count laser on state changes
                    # (no double counting)
                    laser_on = False
                    for elem in block_obj.element_list:
                        if laser_index >= len(elem.pulse_function):
                            break
                        if elem.pulse_function[laser_index] == 'DC' and not laser_on:
                            num_laser_pulses_block += 1
                            laser_on = True
                        elif elem.pulse_function[laser_index] != 'DC':
                            laser_on = False
                num_laser_pulses += num_laser_pulses_block*(reps+1)


            length_mu = (length_bin / self._seq_gen_logic.sample_rate) * 1e6  # in microns

        # get file format to determine the file size in bytes.
        # This is just an estimate since it does not include file headers etc..
        # FIXME: This is just a crude first try to implement this. Improvement required.
        file_format = self._pulsed_meas_logic.get_pulser_constraints()['waveform_format']
        if file_format == 'wfm':
            num_ana_chnl = self._seq_gen_logic.analog_channels
            filesize_bytes = num_ana_chnl * 5 * length_bin
        elif file_format == 'wfmx':
            chnl_config = self._seq_gen_logic.activation_config
            analogue_chnl_num = [int(chnl.split('ch')[1]) for chnl in chnl_config if 'a_ch' in chnl]
            digital_chnl_num= [int(chnl.split('ch')[1]) for chnl in chnl_config if 'd_ch' in chnl]
            for ana_chnl in analogue_chnl_num:
                if (ana_chnl*2-1) in digital_chnl_num or (ana_chnl*2) in digital_chnl_num:
                    filesize_bytes += 5 * length_bin
                else:
                    filesize_bytes += 4 * length_bin
        elif file_format == 'fpga':
            filesize_bytes = length_bin
        else:
            filesize_bytes = 0

        self._mw.curr_ensemble_size_DSpinBox.setValue(filesize_bytes/(1024**2))
        self._mw.curr_ensemble_length_DSpinBox.setValue(length_mu)
        self._mw.curr_ensemble_bins_SpinBox.setValue(length_bin)
        self._mw.curr_ensemble_laserpulses_SpinBox.setValue(num_laser_pulses)

    def block_editor_add_row_before_selected(self, insert_rows=1):

        """ Add row before selected element. """

        self._mw.block_editor_TableWidget.blockSignals(True)

        selected_row = self._mw.block_editor_TableWidget.currentRow()

        # the signal passes a boolean value, which overwrites the insert_rows
        # parameter. Check that here and use the actual default value:
        if type(insert_rows) is bool:
            insert_rows = 1

        for rows in range(insert_rows):
            self._mw.block_editor_TableWidget.insertRow(selected_row)
        self.initialize_cells_block_editor(start_row=selected_row,
                                           stop_row=selected_row + insert_rows)

        self._mw.block_editor_TableWidget.blockSignals(False)

    def block_editor_add_row_after_last(self, insert_rows=1):

        """ Add row after last row in the block editor. """

        self._mw.block_editor_TableWidget.blockSignals(True)

        # the signal passes a boolean value, which overwrites the insert_rows
        # parameter. Check that here and use the actual default value:
        if type(insert_rows) is bool:
            insert_rows = 1

        number_of_rows = self._mw.block_editor_TableWidget.rowCount()

        self._mw.block_editor_TableWidget.setRowCount(
            number_of_rows + insert_rows)
        self.initialize_cells_block_editor(start_row=number_of_rows,
                                           stop_row=number_of_rows + insert_rows)

        self._mw.block_editor_TableWidget.blockSignals(False)

    def block_editor_delete_row_selected(self):
        """ Delete row of selected element. """

        # get the row number of the selected item(s). That will return the
        # lowest selected row
        row_to_remove = self._mw.block_editor_TableWidget.currentRow()
        self._mw.block_editor_TableWidget.removeRow(row_to_remove)

    def block_editor_delete_row_last(self):
        """ Delete the last row in the block editor. """

        number_of_rows = self._mw.block_editor_TableWidget.rowCount()
        # remember, the row index is started to count from 0 and not from 1,
        # therefore one has to reduce the value by 1:
        self._mw.block_editor_TableWidget.removeRow(number_of_rows - 1)

    def block_editor_clear_table(self):
        """ Delete all rows in the block editor table. """

        self._mw.block_editor_TableWidget.blockSignals(True)

        self._mw.block_editor_TableWidget.setRowCount(1)
        self._mw.block_editor_TableWidget.clearContents()

        self.initialize_cells_block_editor(start_row=0)
        self._mw.block_editor_TableWidget.blockSignals(False)
    #
    # def load_pulse_block_ensemble_clicked(self, ensemble_name=None):
    #     """ Loads the current selected Pulse_Block_Ensemble object from the
    #         logic into the editor or a specified object with name ensemble_name.
    #
    #     @param str ensemble_name: optional, name of the Pulse_Block_Element
    #                               object, which should be loaded in the GUI
    #                               Block Organizer. If no name passed, the
    #                               current Pulse_Block_Ensemble from the Logic is
    #                               taken to be loaded.
    #
    #     Unfortuanetly this method needs to know how Pulse_Block_Ensemble objects
    #     are looking like and cannot be that general.
    #     """
    #
    #     # NOTE: This method will be connected to the CLICK event of a
    #     #       QPushButton, which passes as an optional argument as a bool
    #     #       value depending on the checked state of the QPushButton. The
    #     #       passed boolean value has to be handled in addition!
    #
    #     if (ensemble_name is not None) and (type(ensemble_name) is not bool):
    #         current_ensemble_name = ensemble_name
    #     else:
    #         current_ensemble_name = self._mw.saved_ensembles_ComboBox.currentText()
    #
    #     # get the ensemble object and set as current ensemble
    #     ensemble = self._seq_gen_logic.get_pulse_block_ensemble(current_ensemble_name,
    #                                                 set_as_current_ensemble=True)
    #
    #     # Check whether an ensemble is found, otherwise there will be None:
    #     if ensemble is None:
    #         return
    #
    #     # set the activation_config to the one defined in the loaded ensemble
    #     avail_configs = self._pulsed_meas_logic.get_pulser_constraints()['activation_config']
    #     current_activation_config = self._seq_gen_logic.activation_config
    #     activation_config_to_set = ensemble.activation_config
    #     config_name_to_set = None
    #     if current_activation_config != activation_config_to_set:
    #         for config in avail_configs:
    #             if activation_config_to_set == avail_configs[config]:
    #                 config_name_to_set = config
    #                 break
    #         if config_name_to_set is not None:
    #             index = self._mw.gen_activation_config_ComboBox.findText(config_name_to_set)
    #             self._mw.gen_activation_config_ComboBox.setCurrentIndex(index)
    #         self.log.info('Current generator channel activation config '
    #                 'did not match the activation config of the '
    #                 'Pulse_Block_Ensemble to load. Changed config to "{0}".'
    #                 ''.format(config_name_to_set))
    #
    #     # set the sample rate to the one defined in the loaded ensemble
    #     current_sample_rate = self._seq_gen_logic.sample_rate
    #     sample_rate_to_set = ensemble.sample_rate
    #     if current_sample_rate != sample_rate_to_set:
    #         self._mw.gen_sample_freq_DSpinBox.setValue(sample_rate_to_set/1e6)
    #         self.generator_sample_rate_changed()
    #         self.log.info('Current generator sample rate did not match the '
    #                 'sample rate of the Pulse_Block_Ensemble to load. '
    #                 'Changed the sample rate to {0}Hz.'
    #                 ''.format(sample_rate_to_set))
    #
    #     # set the laser channel to the one defined in the loaded ensemble
    #     current_laser_channel = self._seq_gen_logic.laser_channel
    #     laser_channel_to_set = ensemble.laser_channel
    #     if current_laser_channel != laser_channel_to_set and laser_channel_to_set is not None:
    #         index = self._mw.gen_laserchannel_ComboBox.findText(laser_channel_to_set)
    #         self._mw.gen_laserchannel_ComboBox.setCurrentIndex(index)
    #         self.log.info('Current generator laser channel did not match the '
    #                 'laser channel of the Pulse_Block_Ensemble to load. '
    #                 'Changed the laser channel to "{0}".'
    #                 ''.format(laser_channel_to_set))
    #
    #     self.block_organizer_clear_table()  # clear the block organizer table
    #     rows = len(ensemble.block_list)  # get amout of rows needed for display
    #
    #     # add as many rows as there are blocks in the ensemble
    #     # minus 1 because a single row is already present after clear
    #     self.block_organizer_add_row_after_last(rows - 1)
    #
    #     # This dictionary has the information which column number describes
    #     # which object, it is a configuration dict between GUI and logic
    #     organizer_config_dict = self._cfg_param_pb
    #
    #     # run through all blocks in the block_elements block_list to fill in the
    #     # row informations
    #     for row_index, (pulse_block, repetitions) in enumerate(ensemble.block_list):
    #         column = organizer_config_dict['pulse_block']
    #         self.set_element_in_organizer_table(row_index, column, pulse_block.name)
    #
    #         column = organizer_config_dict['repetition']
    #         self.set_element_in_organizer_table(row_index, column, int(repetitions))
    #
    #     # set the ensemble name LineEdit to the current ensemble
    #     self._mw.curr_ensemble_name_LineEdit.setText(current_ensemble_name)




    # def block_organizer_add_row_before_selected(self,insert_rows=1):
    #     """ Add row before selected element. """
    #     self._mw.block_organizer_TableWidget.blockSignals(True)
    #     selected_row = self._mw.block_organizer_TableWidget.currentRow()
    #
    #     # the signal passes a boolean value, which overwrites the insert_rows
    #     # parameter. Check that here and use the actual default value:
    #     if type(insert_rows) is bool:
    #         insert_rows = 1
    #
    #     for rows in range(insert_rows):
    #         self._mw.block_organizer_TableWidget.insertRow(selected_row)
    #
    #     self.initialize_cells_block_organizer(start_row=selected_row)
    #     self._mw.block_organizer_TableWidget.blockSignals(False)
    #     self._update_current_pulse_block_ensemble()
    #
    #
    # def block_organizer_add_row_after_last(self, insert_rows=1):
    #     """ Add row after last row in the block editor. """
    #     self._mw.block_organizer_TableWidget.blockSignals(True)
    #
    #     # the signal of a QPushButton passes an optional boolean value to this
    #     # method, which overwrites the insert_rows parameter. Check that here
    #     # and use the actual default value:
    #     if type(insert_rows) is bool:
    #         insert_rows = 1
    #
    #     number_of_rows = self._mw.block_organizer_TableWidget.rowCount()
    #     self._mw.block_organizer_TableWidget.setRowCount(number_of_rows+insert_rows)
    #
    #     self.initialize_cells_block_organizer(start_row=number_of_rows,
    #                                           stop_row=number_of_rows + insert_rows)
    #
    #     self._mw.block_organizer_TableWidget.blockSignals(False)
    #     self._update_current_pulse_block_ensemble()
    #
    # def block_organizer_delete_row_selected(self):
    #     """ Delete row of selected element. """
    #
    #     # get the row number of the selected item(s). That will return the
    #     # lowest selected row
    #     row_to_remove = self._mw.block_organizer_TableWidget.currentRow()
    #     self._mw.block_organizer_TableWidget.removeRow(row_to_remove)
    #     self._update_current_pulse_block_ensemble()
    #
    # def block_organizer_delete_row_last(self):
    #     """ Delete the last row in the block editor. """
    #
    #     number_of_rows = self._mw.block_organizer_TableWidget.rowCount()
    #     # remember, the row index is started to count from 0 and not from 1,
    #     # therefore one has to reduce the value by 1:
    #     self._mw.block_organizer_TableWidget.removeRow(number_of_rows-1)
    #     self._update_current_pulse_block_ensemble()

    # def block_organizer_clear_table(self):
    #     """ Delete all rows in the block editor table. """
    #
    #
    #     self._mw.block_organizer_TableWidget.blockSignals(True)
    #     self._mw.block_organizer_TableWidget.setRowCount(1)
    #     self._mw.block_organizer_TableWidget.clearContents()
    #     self.initialize_cells_block_organizer(start_row=0)
    #     self._mw.block_organizer_TableWidget.blockSignals(False)
    #     self._update_current_pulse_block_ensemble()

    def delete_pulse_block_ensemble_clicked(self):
        """
        Actions to perform when the delete button in the block organizer is clicked
        """
        name = self._mw.saved_ensembles_ComboBox.currentText()
        self._seq_gen_logic.delete_ensemble(name)
        self.update_ensemble_list()
        return


    def generate_pulse_block_ensemble_clicked(self):
        """ Generate a Pulse_Block_ensemble object."""

        objectname = self._mw.curr_ensemble_name_LineEdit.text()
        if objectname == '':
            self.log.warning('No Name for Pulse_Block_Ensemble specified. '
                        'Generation aborted!')
            return
        rotating_frame =  self._mw.curr_ensemble_rot_frame_CheckBox.isChecked()
        self.generate_pulse_block_ensemble_object(objectname, self.get_organizer_table(),
                                                  rotating_frame)

    def set_cfg_param_pbe(self):

        """ Set the parameter configuration of the Pulse_Block_Elements
        according to the current table configuration and updates the dict in
        the logic.
        """

        cfg_param_pbe = OrderedDict()
        for column in range(self._mw.block_editor_TableWidget.columnCount()):
            text = self._mw.block_editor_TableWidget.horizontalHeaderItem(column).text()
            split_text = text.split()
            if 'DCh' in split_text[0]:
                cfg_param_pbe['digital_' + split_text[0][3]] = column
            elif 'ACh' in split_text[0]:
                cfg_param_pbe[split_text[1] + '_' + split_text[0][3]] = column
            else:
                cfg_param_pbe[split_text[0]] = column

        self._cfg_param_pbe = cfg_param_pbe

    # def set_cfg_param_pb(self):
    #     """ Set the parameter configuration of the Pulse_Block according to the
    #     current table configuration and updates the dict in the logic.
    #     """
    #
    #     cfg_param_pb = OrderedDict()
    #
    #     for column in range(self._mw.block_organizer_TableWidget.columnCount()):
    #         text = self._mw.block_organizer_TableWidget.horizontalHeaderItem(column).text()
    #         # split_text = text.split()
    #         if 'Pulse Block' in text:
    #             cfg_param_pb['pulse_block'] = column
    #         elif 'length' in text:
    #             cfg_param_pb['length'] = column
    #         elif 'repetition' in text:
    #             cfg_param_pb['repetition'] = column
    #         else:
    #             print('text:',text)
    #             raise NotImplementedError
    #     self._cfg_param_pb = cfg_param_pb
    #
    #
    #
    #
    # def initialize_cells_block_organizer(self, start_row, stop_row=None,
    #                                      start_col=None, stop_col=None):
    #     """ Initialize the desired cells in the block organizer table.
    #
    #     @param start_row: int, index of the row, where the initialization
    #                       should start
    #     @param stop_row: int, optional, index of the row, where the
    #                      initalization should end.
    #     @param start_col: int, optional, index of the column where the
    #                       initialization should start
    #     @param stop_col: int, optional, index of the column, where the
    #                      initalization should end.
    #
    #     With this function it is possible to reinitialize specific elements or
    #     part of a row or even the whole row. If start_row is set to 0 the whole
    #     row is going to be initialzed to the default value.
    #     """
    #
    #     if stop_row is None:
    #         stop_row = start_row +1
    #
    #     if start_col is None:
    #         start_col = 0
    #
    #     if stop_col is None:
    #         stop_col = self._mw.block_organizer_TableWidget.columnCount()
    #
    #     for col_num in range(start_col, stop_col):
    #
    #         for row_num in range(start_row,stop_row):
    #             # get the model, here are the data stored:
    #             model = self._mw.block_organizer_TableWidget.model()
    #             # get the corresponding index of the current element:
    #             index = model.index(row_num, col_num)
    #             # get the initial values of the delegate class which was
    #             # uses for this column:
    #             ini_values = self._mw.block_organizer_TableWidget.itemDelegateForColumn(col_num).get_initial_value()
    #             # set initial values:
    #             model.setData(index, ini_values[0], ini_values[1])

    def _add_config_for_predefined_methods(self, parent, name):
        """ Create the Config Elements for altering the Predefined Methods
            display.
        """
        # one has to know that all the checkbox control elements are attached
        # to the widget verticalLayout, accessible via self._pm_cfg.verticalLayout

        checkbox = self._create_QCheckBox(parent, default_val=True)

        checkbox.setText(name)
        setattr(self._pm_cfg, name +'_CheckBox', checkbox)
        self._pm_cfg.verticalLayout.addWidget(checkbox)

    def _get_ref_checkbox_predefined_methods_config(self, name):
        """ Retrieve the reference to the CheckBox with the name of the predefined method

        @param str name: the name of the predefined method

        @return QtGui.QCheckBox: reference to the CheckBox widget.
        """

        return getattr(self._pm_cfg, name+'_CheckBox')

    def _create_control_for_predefined_methods(self):

        """ Create the Control Elements in the Predefined Windows, depending
            on the methods of the logic.

        The following procedure was chosen:
            1. At first the method is inspected and all the parameters are
              investigated. Depending on the type of the default value of the
              keyword, a ControlBox (CheckBox, DoubleSpinBox, ...) is created.laserchannel_ComboBox
                _<method_name>_generate()
                which are connected to the generate button and passes all the
                parameters to the method in the logic.
            3. An additional method is created as
                _<method_name>_generate_upload()
                which generates and uploads the current values to the device.
        """
        method_list = self._seq_gen_logic.predefined_method_list

        for method in method_list:
            inspected = inspect.signature(method)


            gridLayout = QtWidgets.QGridLayout()
            groupBox = QtWidgets.QGroupBox(self._pm)

            obj_list = []

            # go through the parameter list and check the type of the default
            # parameter
            for index, param_name in enumerate(inspected.parameters):

                label_obj = self._create_QLabel(groupBox, param_name)

                default_value = inspected.parameters[param_name].default

                if default_value is inspect._empty:
                    self.log.error('The method "{0}" in the logic has an '
                                'argument "{1}" without a default value!\n'
                                'Assign a default value to that, otherwise a '
                                'type estimation is not possible!\n'
                                'Creation of the viewbox '
                                'aborted.'.format(method.__name__, param_name))
                    return

                if type(default_value) is bool:
                    view_obj = self._create_QCheckBox(groupBox, default_value)
                elif type(default_value) is float:
                    view_obj = self._create_QDoubleSpinBox(groupBox, default_value)
                elif type(default_value) is int:
                    view_obj = self._create_QSpinBox(groupBox, default_value)
                elif type(default_value) is str:
                    view_obj = self._create_QLineEdit(groupBox, default_value)
                else:
                    self.log.error('The method "{0}" in the logic has an '
                            'argument "{1}" with is not of the valid types'
                            'str, float int or bool!\n'
                            'Choose one of those default values! Creation '
                            'of the viewbox aborted.'.format(
                                method.__name__, param_name))

                obj_list.append(view_obj)
                gridLayout.addWidget(label_obj, 0, index, 1, 1)
                gridLayout.addWidget(view_obj, 1, index, 1, 1)

            gen_button = self._create_QPushButton(groupBox, 'Generate')
            # Create with the function builder a method, which will be
            # connected to the click event of the pushbutton generate:
            func_name = '_'+ method.__name__ + '_generate'
            setattr(self, func_name, self._function_builder_generate(func_name, obj_list, method) )
            gen_func = getattr(self, func_name)
            gen_button.clicked.connect(gen_func)


            gen_upload_button = self._create_QPushButton(groupBox, 'Gen. & Upload')
            # Create with the function builder a method, which will be
            # connected to the click event of the pushbutton generate & upload:
            func_name = '_'+ method.__name__ + '_generate_upload'
            setattr(self, func_name, self._function_builder_generate_upload(func_name, gen_func) )
            gen_upload_func = getattr(self, func_name)
            gen_upload_button.clicked.connect(gen_upload_func)

            # position the buttons in the groupbox:
            pos = len(inspected.parameters)
            gridLayout.addWidget(gen_button, 0, pos, 1, 1)
            gridLayout.addWidget(gen_upload_button, 1, pos, 1, 1)

            horizontalLayout = QtWidgets.QHBoxLayout(groupBox)

            horizontalLayout.addLayout(gridLayout)

            groupBox.setTitle(method.__name__.replace('_',' '))

            # attach the GroupBox widget to the predefined methods widget.
            setattr(self._pm, method.__name__+'_GroupBox', groupBox)

            # Since a Scroll Widget is used, you need you pass the
            # scrollAreaWidgetContents as the parent widget.
            self._add_config_for_predefined_methods(self._pm_cfg.scrollAreaWidgetContents, method.__name__)

            # add the name of the predefined method to a local list to keep
            # track of the method:
            self._predefined_methods_list.append(method.__name__)

            self._pm.verticalLayout.addWidget(groupBox)

    def _get_ref_groupbox_predefined_methods(self, name):
        """ Retrieve the reference to the GroupBox with the name of the predefined method

        @param str name: the name of the predefined method

        @return QtGui.QGroupBox: reference to the groupbox widget containing all
                                 elements for the predefined methods.
        """

        return getattr(self._pm, name+'_GroupBox')


    def _create_QLabel(self, parent, label_name):
        """ Helper method for _create_control_for_predefined_methods.

        @param parent: The parent QWidget, which should own that object
        @param str label_name: the display name for the QLabel Widget.

        @return QtGui.QLabel: a predefined label for the GUI.
        """

        label = QtWidgets.QLabel(parent)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Fixed)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(label.sizePolicy().hasHeightForWidth())
        label.setSizePolicy(sizePolicy)
        label.setText(label_name)

        return label

    def _create_QDoubleSpinBox(self, parent, default_val=0.0):
        """ Helper method for _create_control_for_predefined_methods.

        @param parent: The parent QWidget, which should own that object
        @param float default_val: a default value for the QDoubleSpinBox.

        @return QtGui.QDoubleSpinBox: a predefined QDoubleSpinBox for the GUI.
        """

        doublespinbox = QtWidgets.QDoubleSpinBox(parent)
        doublespinbox.setMaximum(np.inf)
        doublespinbox.setMinimum(-np.inf)

        # set a size for vertivcal an horizontal dimensions
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(doublespinbox.sizePolicy().hasHeightForWidth())

        doublespinbox.setMinimumSize(QtCore.QSize(80, 0))
        doublespinbox.setValue(default_val)
        return doublespinbox

    def _create_QSpinBox(self, parent, default_val=0):
        """ Helper method for _create_control_for_predefined_methods.

        @param parent: The parent QWidget, which should own that object
        @param int default_val: a default value for the QSpinBox.

        @return QtGui.QSpinBox: a predefined QSpinBox for the GUI.
        """

        spinBox = QtWidgets.QSpinBox(parent)
        spinBox.setMaximum(2**31 -1)
        spinBox.setMinimum(-2**31 +1)
        spinBox.setValue(default_val)
        return spinBox

    def _create_QCheckBox(self, parent, default_val=False):
        """ Helper method for _create_control_for_predefined_methods.

        @param parent: The parent QWidget, which should own that object
        @param bool default_val: a default value for the QCheckBox.

        @return QtGui.QCheckBox: a predefined QCheckBox for the GUI.
        """

        checkBox = QtWidgets.QCheckBox(parent)
        checkBox.setChecked(default_val)
        return checkBox

    def _create_QLineEdit(self, parent, default_val=''):
        """ Helper method for _create_control_for_predefined_methods.

        @param parent: The parent QWidget, which should own that object
        @param str default_val: a default value for the QLineEdit.

        @return QtGui.QLineEdit: a predefined QLineEdit for the GUI.
        """

        lineedit = QtWidgets.QLineEdit(parent)
        lineedit.setText(default_val)

        # set a size for vertivcal an horizontal dimensions
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)

        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(lineedit.sizePolicy().hasHeightForWidth())

        lineedit.setMinimumSize(QtCore.QSize(80, 0))

        lineedit.setSizePolicy(sizePolicy)
        return lineedit

    def _create_QPushButton(self, parent, text='Generate'):
        """ Helper method for _create_control_for_predefined_methods.

        @param parent: The parent QWidget, which should own that object
        @param str text: a display text for the QPushButton.

        @return QtGui.QPushButton: a predefined QPushButton for the GUI.
        """

        pushbutton = QtWidgets.QPushButton(parent)

        pushbutton.setText(text)
        return pushbutton

    def _function_builder_generate(self, func_name, obj_list, ref_logic_gen ):
        """ Create a function/method which is called by the generate button.

        @param str func_name: name of the function, which will be append to self
        @param list obj_list: list of objects, which where the value will be
                              retrieved
        @param method ref_logic_gen: reference to method in logic

        @return: a function, which can be called with func_name
        """

        def func_dummy_name():
            object_list = obj_list

            ensemble_name = ''
            parameters = [None]*len(object_list)
            for index, obj in enumerate(object_list):
                if hasattr(obj,'isChecked'):
                    parameters[index] = obj.isChecked()
                elif hasattr(obj,'value'):
                    parameters[index] = obj.value()
                elif hasattr(obj,'text'):

                    parameters[index] = obj.text()
                    ensemble_name = obj.text()
                else:
                    self.log.error('Not possible to get the value from the '
                            'viewbox, since it does not have one of the'
                            'possible access methods!')

            # the * operator unpacks the list
            ref_logic_gen(*parameters)
            return ensemble_name

        # assign now a new name to that function, this name will be used to
        # bound the function as attribute to the main object.
        func_dummy_name.__name__ = func_name
        return func_dummy_name

    def _function_builder_generate_upload(self, func_name, ref_gen_func):
        """ Create a function/method which is called by the generate and upload button

        @param str func_name: name of the function, which will be append to self
        @param str ensemble_name: name of the pulse_block_ensemble which will
                                  be uploaded.
        @param ref_gen_func: reference to the generate function, which calls
                             the logic method

        @return: a function, which can be called with func_name
        """

        def func_dummy_name():
            ensemble_name = ref_gen_func()

            index = self._mw.upload_ensemble_ComboBox.findText(ensemble_name, QtCore.Qt.MatchFixedString)
            self._mw.upload_ensemble_ComboBox.setCurrentIndex(index)
            self.sample_ensemble_clicked()
            self.upload_to_device_clicked()

        # assign now a new name to that function, this name will be used to
        # bound the function as attribute to the main object.
        func_dummy_name.__name__ = func_name
        return func_dummy_name



    ###########################################################################
    ###        Methods related to Settings for the 'Analysis' Tab:          ###
    ###########################################################################

    #FIXME: Implement the setting for 'Analysis' tab.
    def _activate_analysis_settings_ui(self, e):

        """ Initialize, connect and configure the Settings of 'Analysis' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        self._as = AnalysisSettingDialog()
        self._as.accepted.connect(self.update_analysis_settings)
        self._as.rejected.connect(self.keep_former_analysis_settings)
        self._as.buttonBox.button(QtWidgets.QDialogButtonBox.Apply).clicked.connect(self.update_analysis_settings)

        if 'ana_param_x_axis_name_LineEdit' in self._statusVariables:
            self._as.ana_param_x_axis_name_LineEdit.setText(self._statusVariables['ana_param_x_axis_name_LineEdit'])
        if 'ana_param_x_axis_unit_LineEdit' in self._statusVariables:
            self._as.ana_param_x_axis_unit_LineEdit.setText(self._statusVariables['ana_param_x_axis_unit_LineEdit'])
        if 'ana_param_y_axis_name_LineEdit' in self._statusVariables:
            self._as.ana_param_y_axis_name_LineEdit.setText(self._statusVariables['ana_param_y_axis_name_LineEdit'])
        if 'ana_param_y_axis_unit_LineEdit' in self._statusVariables:
            self._as.ana_param_y_axis_unit_LineEdit.setText(self._statusVariables['ana_param_y_axis_unit_LineEdit'])
        if 'ana_param_second_plot_x_axis_name_LineEdit' in self._statusVariables:
            self._as.ana_param_second_plot_x_axis_name_LineEdit.setText(self._statusVariables['ana_param_second_plot_x_axis_name_LineEdit'])
        if 'ana_param_second_plot_x_axis_unit_LineEdit' in self._statusVariables:
            self._as.ana_param_second_plot_x_axis_unit_LineEdit.setText(self._statusVariables['ana_param_second_plot_x_axis_unit_LineEdit'])
        if 'ana_param_second_plot_y_axis_name_LineEdit' in self._statusVariables:
            self._as.ana_param_second_plot_y_axis_name_LineEdit.setText(self._statusVariables['ana_param_second_plot_y_axis_name_LineEdit'])
        if 'ana_param_second_plot_y_axis_unit_LineEdit' in self._statusVariables:
            self._as.ana_param_second_plot_y_axis_unit_LineEdit.setText(self._statusVariables['ana_param_second_plot_y_axis_unit_LineEdit'])

        self._as.ana_param_lasertrigger_delay_ScienDSpinBox.setValue(self._pulsed_meas_logic.laser_trigger_delay_s)
        # configure a bit the laser trigger delay spinbox:
        #self._as.ana_param_lasertrigger_delay_ScienDSpinBox.setSingleStep(10)  # in ns
        self.update_analysis_settings()


    def _deactivate_analysis_settings_ui(self, e):

        """ Disconnects the configuration of the Settings for 'Analysis' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        self._statusVariables['ana_param_x_axis_name_LineEdit'] = self._as.ana_param_x_axis_name_LineEdit.text()
        self._statusVariables['ana_param_x_axis_unit_LineEdit'] = self._as.ana_param_x_axis_unit_LineEdit.text()
        self._statusVariables['ana_param_y_axis_name_LineEdit'] = self._as.ana_param_y_axis_name_LineEdit.text()
        self._statusVariables['ana_param_y_axis_unit_LineEdit'] = self._as.ana_param_y_axis_unit_LineEdit.text()
        self._statusVariables['ana_param_second_plot_x_axis_name_LineEdit'] = self._as.ana_param_second_plot_x_axis_name_LineEdit.text()
        self._statusVariables['ana_param_second_plot_x_axis_unit_LineEdit'] = self._as.ana_param_second_plot_x_axis_unit_LineEdit.text()
        self._statusVariables['ana_param_second_plot_y_axis_name_LineEdit'] = self._as.ana_param_second_plot_y_axis_name_LineEdit.text()
        self._statusVariables['ana_param_second_plot_y_axis_unit_LineEdit'] = self._as.ana_param_second_plot_y_axis_unit_LineEdit.text()


    def update_analysis_settings(self):
        """ Apply the new settings """
        self._mw.pulse_analysis_PlotWidget.setLabel(axis='bottom',
            text=self._as.ana_param_x_axis_name_LineEdit.text(),
            units=self._as.ana_param_x_axis_unit_LineEdit.text())
        self._mw.pulse_analysis_PlotWidget.setLabel(axis='left',
            text=self._as.ana_param_y_axis_name_LineEdit.text(),
            units=self._as.ana_param_y_axis_unit_LineEdit.text())
        self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='bottom',
            text=self._as.ana_param_second_plot_x_axis_name_LineEdit.text(),
            units=self._as.ana_param_second_plot_x_axis_unit_LineEdit.text())
        self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='left',
            text=self._as.ana_param_second_plot_y_axis_name_LineEdit.text(),
            units=self._as.ana_param_second_plot_y_axis_unit_LineEdit.text())
        lasertrig_delay = self._as.ana_param_lasertrigger_delay_ScienDSpinBox.value()
        self._pulsed_meas_logic.set_laser_trigger_delay(lasertrig_delay)
        pass

    def keep_former_analysis_settings(self):
        """ Keep the old settings """

        #FIXME: Implement the behaviour
        self._as.ana_param_lasertrigger_delay_ScienDSpinBox.setValue(
            self._pulsed_meas_logic.laser_trigger_delay_s)

    def show_analysis_settings(self):
        """ Open the Analysis Settings Window. """
        self._as.exec_()


    ###########################################################################
    ###     Methods related to the Tab 'Analysis' in the Pulsed Window:     ###
    ###########################################################################

    def _activate_analysis_ui(self, e):
        """ Initialize, connect and configure the 'Analysis' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.

        """
        # Configure the main pulse analysis display:
        self.signal_image = pg.PlotDataItem(self._pulsed_meas_logic.signal_plot_x,
                                            self._pulsed_meas_logic.signal_plot_y,
                                            pen=palette.c1)
        self._mw.pulse_analysis_PlotWidget.addItem(self.signal_image)
        self._mw.pulse_analysis_PlotWidget.showGrid(x=True, y=True, alpha=0.8)
        if self._pulsed_meas_logic.alternating:
            self.signal_image2 = pg.PlotDataItem(self._pulsed_meas_logic.signal_plot_x,
                                                 self._pulsed_meas_logic.signal_plot_y2,
                                                 pen=palette.c3)
            self._mw.pulse_analysis_PlotWidget.addItem(self.signal_image2)

        # Configure the fit of the data in the main pulse analysis display:
        self.fit_image = pg.PlotDataItem(pen=palette.c2)
        self._mw.pulse_analysis_PlotWidget.addItem(self.fit_image)

        # Configure the errorbars of the data in the main pulse analysis display:
        self.signal_image_error_bars=pg.ErrorBarItem(x=self._pulsed_meas_logic.signal_plot_x,
                                                     y=self._pulsed_meas_logic.signal_plot_y,
                                                     top=self._pulsed_meas_logic.measuring_error_plot_y,
                                                     bottom=self._pulsed_meas_logic.measuring_error_plot_y,
                                                     pen=palette.c1)

        # Configure the second pulse analysis display:
        self.second_plot_image = pg.PlotDataItem(self._pulsed_meas_logic.signal_plot_x,
                                                 self._pulsed_meas_logic.signal_plot_y,
                                                 pen=palette.c1)
        self._mw.pulse_analysis_second_PlotWidget.addItem(self.second_plot_image)
        self._mw.pulse_analysis_second_PlotWidget.showGrid(x=True, y=True, alpha=0.8)

        #FIXME: Is currently needed for the errorbars, but there has to be a better solution
        self.errorbars_present = False

        # that must be one out of the dict units.get_unit_prefix_dict()
        self._freq_prefix = 'M'
        self._time_prefix = 'n'

        # apply hardware constraints
        self._analysis_apply_hardware_constraints()
        # Initialize External Control GroupBox from logic and saved status variables
        self._init_external_control()
        # Initialize Analysis Parameter GroupBox from logic and saved status variables
        self._init_analysis_parameter()
        # Initialize Fit Parameter GroupBox from logic and saved status variables
        self._init_fit_parameter()

        # ---------------------------------------------------------------------
        #                         Connect signals
        # ---------------------------------------------------------------------
        self._mw.action_run_stop.triggered.connect(self.run_stop_clicked)
        self._mw.action_continue_pause.triggered.connect(self.continue_pause_clicked)
        self._mw.action_pull_data.triggered.connect(self.pull_data_clicked)
        self._mw.action_save.triggered.connect(self.save_clicked)

        self._pulsed_meas_logic.signal_time_updated.connect(self.refresh_elapsed_time)
        self._pulsed_meas_logic.sigPulseAnalysisUpdated.connect(self.refresh_signal_plot)
        self._pulsed_meas_logic.sigMeasuringErrorUpdated.connect(self.refresh_measuring_error_plot)

        self._mw.action_Settings_Analysis.triggered.connect(self.show_analysis_settings)

        # Connect the CheckBoxes
        # anaylsis tab
        self._mw.ext_control_use_mw_CheckBox.stateChanged.connect(self.toggle_external_mw_source_editor)
        self._mw.ana_param_x_axis_defined_CheckBox.stateChanged.connect(self.toggle_laser_xaxis_editor)
        self._mw.ana_param_laserpulse_defined_CheckBox.stateChanged.connect(self.toggle_laser_xaxis_editor)
        self._mw.ana_param_alternating_CheckBox.stateChanged.connect(self.analysis_alternating_changed)

        # Connect InputWidgets to events
        self._mw.ana_param_num_laser_pulse_SpinBox.editingFinished.connect(self.num_of_lasers_changed)
        self._mw.ana_param_laser_length_SpinBox.editingFinished.connect(self.laser_length_changed)
        self._mw.time_param_ana_periode_DoubleSpinBox.editingFinished.connect(self.analysis_timing_changed)
        self._mw.ana_param_fc_bins_ComboBox.currentIndexChanged.connect(self.analysis_fc_binning_changed)
        self._mw.second_plot_ComboBox.currentIndexChanged.connect(self.change_second_plot)

        # connect the fit stuff:
        self._mw.fit_param_PushButton.clicked.connect(self.fit_clicked)
        self._pulsed_meas_logic.sigFitUpdated.connect(self.refresh_signal_plot_fit)

        self._mw.ext_control_mw_freq_DoubleSpinBox.editingFinished.connect(self.ext_mw_params_changed)
        self._mw.ext_control_mw_power_DoubleSpinBox.editingFinished.connect(self.ext_mw_params_changed)

        self._mw.pulser_sample_freq_DSpinBox.editingFinished.connect(self.pulser_sample_rate_changed)
        self._mw.pulser_activation_config_ComboBox.currentIndexChanged.connect(self.pulser_activation_config_changed)

        self._mw.ana_param_x_axis_start_ScienDSpinBox.editingFinished.connect(self.analysis_xaxis_changed)
        self._mw.ana_param_x_axis_inc_ScienDSpinBox.editingFinished.connect(self.analysis_xaxis_changed)

    def _deactivate_analysis_ui(self, e):
        """ Disconnects the configuration for 'Analysis' Tab.

       @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        self.run_stop_clicked(False)

        self._statusVariables['ana_param_x_axis_defined_CheckBox'] = self._mw.ana_param_x_axis_defined_CheckBox.isChecked()
        self._statusVariables['ana_param_laserpulse_defined_CheckBox'] = self._mw.ana_param_laserpulse_defined_CheckBox.isChecked()
        self._statusVariables['ana_param_ignore_first_CheckBox'] = self._mw.ana_param_ignore_first_CheckBox.isChecked()
        self._statusVariables['ana_param_ignore_last_CheckBox'] = self._mw.ana_param_ignore_last_CheckBox.isChecked()
        self._statusVariables['ana_param_errorbars_CheckBox'] = self._mw.ana_param_errorbars_CheckBox.isChecked()
        self._statusVariables['second_plot_ComboBox_text'] = self._mw.second_plot_ComboBox.currentText()


        # disconnect signals
        # self._pulsed_meas_logic.sigPulseAnalysisUpdated.disconnect()
        # self._mw.ana_param_num_laser_pulse_SpinBox.editingFinished.disconnect()

    def _analysis_apply_hardware_constraints(self):
        """

        Retrieve the constraints from pulser and fast counter hardware and apply these constraints
        to the analysis tab GUI elements.
        """
        pulser_constr = self._pulsed_meas_logic.get_pulser_constraints()
        sample_min = pulser_constr['sample_rate']['min'] / 1e6
        sample_max = pulser_constr['sample_rate']['max'] / 1e6
        sample_step = pulser_constr['sample_rate']['step'] / 1e6

        self._mw.pulser_sample_freq_DSpinBox.setMinimum(sample_min)
        self._mw.pulser_sample_freq_DSpinBox.setMaximum(sample_max)
        self._mw.pulser_sample_freq_DSpinBox.setSingleStep(sample_step)
        self._mw.pulser_sample_freq_DSpinBox.setDecimals((np.log10(sample_step) * -1))

    def _init_analysis_parameter(self):
        """
        This method initializes the input parameters in the Analysis Parameter GroupBox
        """
        # Get the possible binwidth setting from the hardware constraints in order to keep the full
        # precision (which is not needed in the display) a reference variable self._binwidth_list
        # will be created where the values are stored with the absolute given presicion:
        self._binwidth_list = self._pulsed_meas_logic.get_fastcounter_constraints()[
            'hardware_binwidth_list']
        binwidth_str_list = []
        for entry in self._binwidth_list:
            binwidth_str_list.append(str(round(entry, 12)))
        self._mw.ana_param_fc_bins_ComboBox.addItems(binwidth_str_list)
        index = self._binwidth_list.index(self._pulsed_meas_logic.fast_counter_binwidth)
        self._mw.ana_param_fc_bins_ComboBox.setCurrentIndex(index)

        # define num laserpulses checkbox
        if 'ana_param_laserpulse_defined_CheckBox' in self._statusVariables:
            self._mw.ana_param_laserpulse_defined_CheckBox.setChecked(
                self._statusVariables['ana_param_laserpulse_defined_CheckBox'])
        else:
            self._mw.ana_param_laserpulse_defined_CheckBox.setChecked(True)

        # number of laser pulses
        self._mw.ana_param_num_laser_pulse_SpinBox.setValue(
            self._pulsed_meas_logic.number_of_lasers)

        # Laser pulse length
        self._mw.ana_param_laser_length_SpinBox.setValue(self._pulsed_meas_logic.laser_length_s*1e9)

        # ignore and alternating checkboxes
        self._mw.ana_param_alternating_CheckBox.setChecked(self._pulsed_meas_logic.alternating)

        if 'ana_param_ignore_first_CheckBox' in self._statusVariables:
            self._mw.ana_param_ignore_first_CheckBox.setChecked(
                self._statusVariables['ana_param_ignore_first_CheckBox'])
        else:
            self._mw.ana_param_ignore_first_CheckBox.setChecked(False)
        if 'ana_param_ignore_last_CheckBox' in self._statusVariables:
            self._mw.ana_param_ignore_last_CheckBox.setChecked(
                self._statusVariables['ana_param_ignore_last_CheckBox'])
        else:
            self._mw.ana_param_ignore_last_CheckBox.setChecked(False)

        # define own x-axis checkbox
        if 'ana_param_x_axis_defined_CheckBox' in self._statusVariables:
            self._mw.ana_param_x_axis_defined_CheckBox.setChecked(
                self._statusVariables['ana_param_x_axis_defined_CheckBox'])
        else:
            self._mw.ana_param_x_axis_defined_CheckBox.setChecked(True)

        # measurement ticks
        ticks_list = self._pulsed_meas_logic.measurement_ticks_list
        if ticks_list is not None and len(ticks_list) > 1:
            xaxis_start = ticks_list[0]
            xaxis_incr = ticks_list[1] - ticks_list[0]
        else:
            xaxis_start = 1e-9
            xaxis_incr = 1e-9
        self._mw.ana_param_x_axis_start_ScienDSpinBox.setValue(xaxis_start)
        self._mw.ana_param_x_axis_inc_ScienDSpinBox.setValue(xaxis_incr)

        # Show second plot ComboBox
        second_plot_list = ['None', 'unchanged data', 'FFT', 'Log(x)', 'Log(y)', 'Log(x)&Log(y)']
        self._mw.second_plot_ComboBox.addItems(second_plot_list)
        if 'second_plot_ComboBox_text' in self._statusVariables:
            index = second_plot_list.index(self._statusVariables['second_plot_ComboBox_text'])
            self._mw.second_plot_ComboBox.setCurrentIndex(index)

        # Error bars CheckBox
        if 'ana_param_errorbars_CheckBox' in self._statusVariables:
            self._mw.ana_param_errorbars_CheckBox.setChecked(
                self._statusVariables['ana_param_errorbars_CheckBox'])
        else:
            self._mw.ana_param_errorbars_CheckBox.setChecked(False)

        # Analysis period
        self._mw.time_param_ana_periode_DoubleSpinBox.setValue(
            self._pulsed_meas_logic.timer_interval)

        # Let the initial values change GUI elements accordingly
        self.toggle_laser_xaxis_editor()

        self.change_second_plot()

        self._mw.laserpulses_ComboBox.clear()
        self._mw.laserpulses_ComboBox.addItem('sum')
        new_num_of_lasers = self._mw.ana_param_num_laser_pulse_SpinBox.value()
        for ii in range(new_num_of_lasers):
            self._mw.laserpulses_ComboBox.addItem(str(1 + ii))

    def _init_fit_parameter(self):
        """
        This method initializes the input parameters in the Fit Parameter GroupBox
        """
        # Fit ComboBox
        fit_functions = self._pulsed_meas_logic.get_fit_functions()
        self._mw.fit_param_fit_func_ComboBox.addItems(fit_functions)

    def _init_external_control(self):
        """
        This method initializes the input parameters in the External Control GroupBox
        """
        # external MW CheckBox
        self._mw.ext_control_use_mw_CheckBox.setChecked(self._pulsed_meas_logic.use_ext_microwave)
        # MW freq
        self._mw.ext_control_mw_freq_DoubleSpinBox.setValue(self._pulsed_meas_logic.microwave_freq)
        # MW power
        self._mw.ext_control_mw_power_DoubleSpinBox.setValue(
            self._pulsed_meas_logic.microwave_power)
        self.toggle_external_mw_source_editor()

        # Channel config ComboBox
        avail_configs = self._pulsed_meas_logic.get_pulser_constraints()['activation_config']
        self._mw.pulser_activation_config_ComboBox.addItems(list(avail_configs))
        config_name_to_set = self._pulsed_meas_logic.current_channel_config_name
        if config_name_to_set is not None and config_name_to_set in avail_configs.keys():
            index = self._mw.pulser_activation_config_ComboBox.findText(config_name_to_set)
            self._mw.pulser_activation_config_ComboBox.setCurrentIndex(index)
            display_str = ''
            for chnl in avail_configs[config_name_to_set]:
                display_str += chnl + ' | '
            display_str = display_str[:-3]
            self._mw.pulser_activation_config_LineEdit.setText(display_str)

        # Sample rate
        self._mw.pulser_sample_freq_DSpinBox.setValue(self._pulsed_meas_logic.sample_rate/1e6)
        self.pulser_sample_rate_changed()

    def run_stop_clicked(self, isChecked):
        """ Manages what happens if pulsed measurement is started or stopped.

        @param bool enabled: start scan if that is possible
        """

        #Firstly stop any scan that might be in progress
        self._pulsed_meas_logic.stop_pulsed_measurement()

        if isChecked:
            # get currently loaded asset for the parameters
            asset_name = self._pulsed_meas_logic.loaded_asset_name
            asset_obj = self._seq_gen_logic.get_saved_asset(asset_name)
            if not self._mw.ana_param_laserpulse_defined_CheckBox.isChecked() or \
                not self._mw.ana_param_x_axis_defined_CheckBox.isChecked():
                if asset_obj is None:
                    self.log.error('Error while trying to run pulsed '
                            'measurement. No asset is loaded onto the '
                            'pulse generator. Aborting run.')
                    return
            # infer number of laser pulses from the currently loaded asset if needed.
            # If they have been manually set in the GUI the changes are already in the logic.
            if not self._mw.ana_param_laserpulse_defined_CheckBox.isChecked():
                num_laser_pulses = asset_obj.number_of_lasers
                self._mw.ana_param_num_laser_pulse_SpinBox.setValue(num_laser_pulses)
                self.num_of_lasers_changed()
                laser_length = asset_obj.laser_length_bins/self._pulsed_meas_logic.sample_rate
                self._mw.ana_param_laser_length_SpinBox.setValue(laser_length*1e9)
                self.laser_length_changed()

            # infer x axis measurement ticks from the currently loaded asset if needed.
            # If they have been manually set in the GUI the changes are already in the logic.
            if not self._mw.ana_param_x_axis_defined_CheckBox.isChecked():
                if asset_obj.measurement_ticks_list is not None:
                    meas_ticks_list = asset_obj.measurement_ticks_list/ asset_obj.sample_rate
                else:
                    self.log.error('Error while trying to run pulsed '
                            'measurement. No measurement ticks defined '
                            'in asset. Aborting run.')
                    return
                self._pulsed_meas_logic.set_measurement_ticks_list(meas_ticks_list)

            #Todo: Should all be set by the logic itself during load of a new sequence
            self._mw.time_param_expected_dur_DoubleSpinBox.setValue(self._pulsed_meas_logic.sequence_length_s*1e3) #computed expected duration in ms

            # Enable and disable buttons
            self._mw.ext_control_use_mw_CheckBox.setEnabled(False)
            self._mw.ext_control_mw_freq_DoubleSpinBox.setEnabled(False)
            self._mw.ext_control_mw_power_DoubleSpinBox.setEnabled(False)
            self._mw.pulser_sample_freq_DSpinBox.setEnabled(False)
            self._mw.pulser_activation_config_ComboBox.setEnabled(False)
            self._mw.ana_param_fc_bins_ComboBox.setEnabled(False)
            self._mw.ana_param_laserpulse_defined_CheckBox.setEnabled(False)
            self._mw.ana_param_num_laser_pulse_SpinBox.setEnabled(False)
            self._mw.ana_param_laser_length_SpinBox.setEnabled(False)
            self._mw.ana_param_ignore_first_CheckBox.setEnabled(False)
            self._mw.ana_param_ignore_last_CheckBox.setEnabled(False)
            self._mw.ana_param_alternating_CheckBox.setEnabled(False)
            self._mw.ana_param_x_axis_defined_CheckBox.setEnabled(False)
            self._mw.ana_param_x_axis_start_ScienDSpinBox.setEnabled(False)
            self._mw.ana_param_x_axis_inc_ScienDSpinBox.setEnabled(False)
            self._mw.action_pull_data.setEnabled(True)


            self._pulsed_meas_logic.start_pulsed_measurement()
            self._mw.action_continue_pause.setEnabled(True)


            if not self._mw.action_continue_pause.isChecked():
                self._mw.action_continue_pause.toggle()
        else:
            #Enables and disables buttons
            self._mw.ext_control_use_mw_CheckBox.setEnabled(True)
            self._mw.ext_control_mw_freq_DoubleSpinBox.setEnabled(True)
            self._mw.ext_control_mw_power_DoubleSpinBox.setEnabled(True)
            self._mw.pulser_sample_freq_DSpinBox.setEnabled(True)
            self._mw.pulser_activation_config_ComboBox.setEnabled(True)
            self._mw.ana_param_fc_bins_ComboBox.setEnabled(True)
            self._mw.ana_param_laserpulse_defined_CheckBox.setEnabled(True)
            self._mw.ana_param_num_laser_pulse_SpinBox.setEnabled(True)
            self._mw.ana_param_laser_length_SpinBox.setEnabled(True)
            self._mw.ana_param_ignore_first_CheckBox.setEnabled(True)
            self._mw.ana_param_ignore_last_CheckBox.setEnabled(True)
            self._mw.ana_param_alternating_CheckBox.setEnabled(True)
            self._mw.ana_param_x_axis_defined_CheckBox.setEnabled(True)
            self._mw.ana_param_x_axis_start_ScienDSpinBox.setEnabled(True)
            self._mw.ana_param_x_axis_inc_ScienDSpinBox.setEnabled(True)
            self._mw.action_pull_data.setEnabled(False)
            self._mw.action_continue_pause.setEnabled(False)


    #ToDo: I think that is not really working yet. Yeap, true....
    def continue_pause_clicked(self, isChecked):
        """ Continues and pauses the measurement. """
        if isChecked:
            #self._mw.action_continue_pause.toggle()
            self._mw.action_run_stop.setChecked(True)
            #self._pulsed_meas_logic.continue_pulsed_measurement()
        else:
            #self._mw.action_continue_pause.toggle
            #self._pulsed_meas_logic.pause_pulsed_measurement()
            self._mw.action_run_stop.setChecked(False)

    def pull_data_clicked(self):
        """ Pulls and analysis the data when the 'action_pull_data'-button is clicked. """
        self._pulsed_meas_logic.manually_pull_data()
        return

    def save_clicked(self):
        """Saves the current data"""
        self.save_plots()
        # FIXME: Also save the data from pulsed_measurement_logic

    def fit_clicked(self):
        """Fits the current data"""
        self._mw.fit_param_results_TextBrowser.clear()
        current_fit_function = self._mw.fit_param_fit_func_ComboBox.currentText()
        fit_x, fit_y, fit_param, fit_result = self._pulsed_meas_logic.do_fit(current_fit_function)

        fit_text = units.create_formatted_output(fit_param)

        self.fit_image.setData(x=fit_x, y=fit_y)
        self._mw.fit_param_results_TextBrowser.setPlainText(fit_text)
        return

    def refresh_signal_plot(self):
        """ Refreshes the xy-plot image """
        # dealing with the error bars
        if self._mw.ana_param_errorbars_CheckBox.isChecked():
            beamwidth = np.inf
            for i in range(len(self._pulsed_meas_logic.measurement_ticks_list) - 1):
                width = self._pulsed_meas_logic.measurement_ticks_list[i + 1] - \
                        self._pulsed_meas_logic.measurement_ticks_list[i]
                width = width / 3
                if width <= beamwidth:
                    beamwidth = width
            # create ErrorBarItem
            self.signal_image_error_bars.setData(x=self._pulsed_meas_logic.signal_plot_x,
                                                 y=self._pulsed_meas_logic.signal_plot_y,
                                                 top=self._pulsed_meas_logic.measuring_error,
                                                 bottom=self._pulsed_meas_logic.measuring_error,
                                                 beam=beamwidth)
            if not self.errorbars_present:
                self._mw.pulse_analysis_PlotWidget.addItem(self.signal_image_error_bars)
                self.errorbars_present = True
        else:
            if self.errorbars_present:
                self._mw.pulse_analysis_PlotWidget.removeItem(self.signal_image_error_bars)
                self.errorbars_present = False


        # dealing with the actual signal
        self.signal_image.setData(x=self._pulsed_meas_logic.signal_plot_x,
                                  y=self._pulsed_meas_logic.signal_plot_y)
        if self._pulsed_meas_logic.alternating:
            self.signal_image2.setData(x=self._pulsed_meas_logic.signal_plot_x,
                                       y=self._pulsed_meas_logic.signal_plot_y2)
        self.change_second_plot()
        return

    def refresh_signal_plot_fit(self):
        """ Refreshes the xy-plot fit image """

        self.fit_image.setData(x=self._pulsed_meas_logic.signal_plot_x_fit,
                               y=self._pulsed_meas_logic.signal_plot_y_fit)


    def refresh_measuring_error_plot(self):
        self.measuring_error_image.setData(x=self._pulsed_meas_logic.signal_plot_x,
                                           y=self._pulsed_meas_logic.measuring_error*1000)

    def refresh_elapsed_time(self):
        """ Refreshes the elapsed time and sweeps of the measurement. """
        self._mw.time_param_elapsed_time_LineEdit.setText(self._pulsed_meas_logic.elapsed_time_str)


        #FIXME: That is not a clean way! What if there is no waveform defined,
        #       so that expected duration is actually zero??!! Handle that for
        #       now in checking the parameter for zero, and if so, then using
        #       just 1.0 instead.
        if np.isclose(self._mw.time_param_expected_dur_DoubleSpinBox.value()/1e3,0):
            expected_time = 1.0
        else:
            expected_time = self._mw.time_param_expected_dur_DoubleSpinBox.value()
        self._mw.time_param_elapsed_sweep_ScienSpinBox.setValue(self._pulsed_meas_logic.elapsed_time/(expected_time/1e3))

    def toggle_external_mw_source_editor(self):
        """ Shows or hides input widgets which are necessary if an external mw is turned on"""
        if not self._mw.ext_control_use_mw_CheckBox.isChecked():

            self._mw.ext_control_mw_freq_Label.setVisible(False)
            self._mw.ext_control_mw_freq_DoubleSpinBox.setVisible(False)
            self._mw.ext_control_mw_power_Label.setVisible(False)
            self._mw.ext_control_mw_power_DoubleSpinBox.setVisible(False)
        else:
            self._mw.ext_control_mw_freq_Label.setVisible(True)
            self._mw.ext_control_mw_freq_DoubleSpinBox.setVisible(True)
            self._mw.ext_control_mw_power_Label.setVisible(True)
            self._mw.ext_control_mw_power_DoubleSpinBox.setVisible(True)
        return

    def toggle_laser_xaxis_editor(self):
        """ Shows or hides input widgets which are necessary if the x axis id defined or not."""

        if self._mw.ana_param_x_axis_defined_CheckBox.isChecked():
            self._mw.ana_param_x_axis_start_Label.setVisible(True)
            self._mw.ana_param_x_axis_start_ScienDSpinBox.setVisible(True)
            self._mw.ana_param_x_axis_inc_Label.setVisible(True)
            self._mw.ana_param_x_axis_inc_ScienDSpinBox.setVisible(True)
        else:
            self._mw.ana_param_x_axis_start_Label.setVisible(False)
            self._mw.ana_param_x_axis_start_ScienDSpinBox.setVisible(False)
            self._mw.ana_param_x_axis_inc_Label.setVisible(False)
            self._mw.ana_param_x_axis_inc_ScienDSpinBox.setVisible(False)

        if self._mw.ana_param_laserpulse_defined_CheckBox.isChecked():
            self._mw.ana_param_num_laserpulses_Label.setVisible(True)
            self._mw.ana_param_num_laser_pulse_SpinBox.setVisible(True)
            if self._pulsed_meas_logic.fast_counter_gated:
                self._mw.ana_param_laser_length_Label.setVisible(True)
                self._mw.ana_param_laser_length_SpinBox.setVisible(True)
            else:
                self._mw.ana_param_laser_length_Label.setVisible(False)
                self._mw.ana_param_laser_length_SpinBox.setVisible(False)
        else:
            self._mw.ana_param_num_laserpulses_Label.setVisible(False)
            self._mw.ana_param_num_laser_pulse_SpinBox.setVisible(False)
            self._mw.ana_param_laser_length_Label.setVisible(False)
            self._mw.ana_param_laser_length_SpinBox.setVisible(False)

    def change_second_plot(self):
        """ This method handles the second plot"""
        if self._mw.second_plot_ComboBox.currentText()=='None':
            self._mw.second_plot_GroupBox.setVisible(False)
        else:
            self._mw.second_plot_GroupBox.setVisible(True)

            # Here FFT is seperated from the other option. The reason for that
            # is preventing of code doubling
            if self._mw.second_plot_ComboBox.currentText() == 'FFT':
                fft_x, fft_y = self._pulsed_meas_logic.compute_fft()
                self.second_plot_image.setData(fft_x, fft_y)
                self._mw.pulse_analysis_second_PlotWidget.setLogMode(x=False, y=False)

                self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='bottom',
                                                                   text=self._as.ana_param_second_plot_x_axis_name_LineEdit.text(),
                                                                   units=self._as.ana_param_second_plot_x_axis_unit_LineEdit.text())
                self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='left',
                                                                   text=self._as.ana_param_second_plot_y_axis_name_LineEdit.text(),
                                                                   units=self._as.ana_param_second_plot_y_axis_unit_LineEdit.text())

            else:
                #FIXME: Is not working when there is a 0 in the values, therefore ignoring the first measurment point
                self.second_plot_image.setData(self._pulsed_meas_logic.signal_plot_x[1:], self._pulsed_meas_logic.signal_plot_y[1:])

                if self._as.ana_param_second_plot_x_axis_name_LineEdit.text()== '':
                    self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='left',
                                                                       text=self._as.ana_param_y_axis_name_LineEdit.text(),
                                                                       units=self._as.ana_param_y_axis_unit_LineEdit.text())
                    self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='bottom',
                                                                       text=self._as.ana_param_x_axis_name_LineEdit.text(),
                                                                       units=self._as.ana_param_x_axis_unit_LineEdit.text())

                else:
                    self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='bottom',
                                                                       text=self._as.ana_param_second_plot_x_axis_name_LineEdit.text(),
                                                                       units=self._as.ana_param_second_plot_x_axis_unit_LineEdit.text())
                    self._mw.pulse_analysis_second_PlotWidget.setLabel(axis='left',
                                                                       text=self._as.ana_param_second_plot_y_axis_name_LineEdit.text(),
                                                                       units=self._as.ana_param_second_plot_y_axis_unit_LineEdit.text())

                if self._mw.second_plot_ComboBox.currentText() == 'unchanged data':
                    self._mw.pulse_analysis_second_PlotWidget.setLogMode(x=False, y=False)

                elif self._mw.second_plot_ComboBox.currentText() == 'Log(x)':
                    self._mw.pulse_analysis_second_PlotWidget.setLogMode(x=True, y=False)

                elif self._mw.second_plot_ComboBox.currentText() == 'Log(y)':
                    self._mw.pulse_analysis_second_PlotWidget.setLogMode(x=False,y=True)

                elif self._mw.second_plot_ComboBox.currentText() == 'Log(x)&Log(y)':
                    self._mw.pulse_analysis_second_PlotWidget.setLogMode(x=True, y=True)

    def analysis_timing_changed(self):
        """ This method handles the analysis timing"""
        timer_interval = self._mw.time_param_ana_periode_DoubleSpinBox.value()
        self._pulsed_meas_logic.set_timer_interval(timer_interval)

    def analysis_alternating_changed(self):
        """
        Is called whenever the "alternating" CheckBox is clicked
        """
        alternating = self._mw.ana_param_alternating_CheckBox.isChecked()
        # add/remove data set in plot widget
        if alternating and not self._pulsed_meas_logic.alternating:
            self.signal_image2 = pg.PlotDataItem(self._pulsed_meas_logic.signal_plot_x,
                                                 self._pulsed_meas_logic.signal_plot_y2,
                                                 pen=palette.c3)
            self._mw.pulse_analysis_PlotWidget.addItem(self.signal_image2)
        if not alternating and self._pulsed_meas_logic.alternating:
            self._mw.pulse_analysis_PlotWidget.removeItem(self.signal_image2)
        # Set flag in logic
        self._pulsed_meas_logic.alternating = alternating
        # recalculate measurement ticks
        self.analysis_xaxis_changed()
        return

    def analysis_fc_binning_changed(self):
        """
        If a new binning value is selected, apply the change to the logic.
        """
        index = self._mw.ana_param_fc_bins_ComboBox.currentIndex()
        fc_binning = self._binwidth_list[index]
        self._pulsed_meas_logic.set_fc_binning(fc_binning)
        return

    def analysis_xaxis_changed(self):
        """
        Gets called whenever the user alters manually the x axis start and increment
        for the pulsed measurement.
        """
        xaxis_start = self._mw.ana_param_x_axis_start_ScienDSpinBox.value()
        xaxis_incr = self._mw.ana_param_x_axis_inc_ScienDSpinBox.value()
        if self._pulsed_meas_logic.alternating:
            num_of_lasers = self._pulsed_meas_logic.number_of_lasers//2
        else:
            num_of_lasers = self._pulsed_meas_logic.number_of_lasers
        xaxis_ticks_list = np.linspace(xaxis_start, xaxis_start+(xaxis_incr*(num_of_lasers-1)), num_of_lasers)
        self._pulsed_meas_logic.set_measurement_ticks_list(xaxis_ticks_list)

    def ext_mw_params_changed(self):
        """
        Gets called whenever the parameters for the external MW source are altered,
        i.e. frequency and/or power
        """
        freq = self._mw.ext_control_mw_freq_DoubleSpinBox.value()
        power = self._mw.ext_control_mw_power_DoubleSpinBox.value()
        self._pulsed_meas_logic.set_microwave_params(frequency=freq, power=power)

    def pulser_activation_config_changed(self):
        """
        Is called whenever the activation config is changed in the Analysis tab.
        This is actually the activation config that controls the hardware.
        """
        # retreive GUI inputs
        new_config_name = self._mw.pulser_activation_config_ComboBox.currentText()
        new_channel_config = self._pulsed_meas_logic.get_pulser_constraints()['activation_config'][
            new_config_name]
        # set chosen config in pulsed measurement logic
        self._pulsed_meas_logic.set_activation_config(new_config_name)
        # set display new config alongside with number of channels
        display_str = ''
        for chnl in new_channel_config:
            display_str += chnl + ' | '
        display_str = display_str[:-3]
        self._mw.pulser_activation_config_LineEdit.setText(display_str)


    def pulser_sample_rate_changed(self):
        """
        Is called whenever the sample rate is changed in the Analysis tab.
        This is actually the sample rate that is set in the hardware.
        """
        self._mw.pulser_sample_freq_DSpinBox.blockSignals(True)
        sample_rate = self._mw.pulser_sample_freq_DSpinBox.value()*1e6
        actual_sample_rate = self._pulsed_meas_logic.set_sample_rate(sample_rate)
        self._mw.pulser_sample_freq_DSpinBox.setValue(actual_sample_rate/1e6)
        self._mw.pulser_sample_freq_DSpinBox.blockSignals(False)


    ###########################################################################
    ###   Methods related to Settings for the 'Sequence Generator' Tab:     ###
    ###########################################################################

    #FIXME: Implement the setting for 'Sequence Generator' tab.

    def _activate_sequence_settings_ui(self, e):
        """ Initialize, connect and configure the Settings of the
        'Sequence Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """

        pass

    def _deactivate_sequence_settings_ui(self, e):
        """ Disconnects the configuration of the Settings for the
        'Sequence Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """

        pass


    ###########################################################################
    ###         Methods related to the Tab 'Sequence Generator':            ###
    ###########################################################################

    #FIXME: Implement the 'Sequence Generator' tab.

    def _activate_sequence_generator_ui(self, e):
        """ Initialize, connect and configure the 'Sequence Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """

        # set viewboxes of the sequence length to proper minimum and top maximum
        self._mw.curr_seq_bins_SpinBox.setMinimum(0)
        self._mw.curr_seq_bins_SpinBox.setMaximum(2 ** 31 - 1)
        self._mw.curr_seq_length_DSpinBox.setMinimum(0)
        self._mw.curr_seq_length_DSpinBox.setMaximum(np.inf)
        # self._mw.curr_seq_laserpulses_SpinBox.setMinimum(0)
        # self._mw.curr_seq_laserpulses_SpinBox.setMaximum(2 ** 31 - 1)

        # check for sequencer mode and then hide the tab.
        if not self._pulsed_meas_logic.has_sequence_mode():
            # save the tab for later usage if needed in the instance variable:
            self._seq_editor_tab_Widget = self._mw.tabWidget.widget(2)
            self._mw.tabWidget.removeTab(2)

            # with that command the saved tab can be again attached to the Tab Widget
            # self._mw.tabWidget.insertTab(2, self._seq_editor_tab_Widget ,'Sequence Editor')

        # make together with the hardware a proper dictionary for the sequence parameter:
        self._seq_param = self._create_seq_param()
        # create the table according to the passed values from the logic:
        self._set_sequence_editor_columns()
        self.update_sequence_list()

        # connect the signals for the block editor:
        self._mw.seq_add_last_PushButton.clicked.connect(self.sequence_editor_add_row_after_last)
        self._mw.seq_del_last_PushButton.clicked.connect(self.sequence_editor_delete_row_last)
        self._mw.seq_add_sel_PushButton.clicked.connect(self.sequence_editor_add_row_before_selected)
        self._mw.seq_del_sel_PushButton.clicked.connect(self.sequence_editor_delete_row_selected)
        self._mw.seq_clear_PushButton.clicked.connect(self.sequence_editor_clear_table)

        self._mw.seq_editor_TableWidget.itemChanged.connect(self._update_current_pulse_sequence)

        # connect the buttons in the current sequence section:
        self._mw.curr_seq_generate_PushButton.clicked.connect(self.generate_pulse_sequence_clicked)
        self._mw.curr_seq_del_PushButton.clicked.connect(self.delete_pulse_sequence_clicked)
        self._mw.curr_seq_load_PushButton.clicked.connect(self.load_pulse_sequence_clicked)

        # connect the buttons in the upload section
        self._mw.upload_sample_seq_PushButton.clicked.connect(self.sample_sequence_clicked)
        self._mw.upload_load_seq_to_channel_PushButton.clicked.connect(self.load_seq_into_channel_clicked)
        self._mw.upload_seq_to_device_PushButton.clicked.connect(self.upload_seq_to_device_clicked)

        self._seq_gen_logic.signal_sequence_list_updated.connect(self.update_sequence_list)

    def _deactivate_sequence_generator_ui(self, e):
        """ Disconnects the configuration for 'Sequence Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        pass

    def _create_seq_param(self):
        """ Create a dictionary for sequence parameters.

        @return dict: the parameter dictionary for the sequence mode

        Based on the information from the hardware, the logic will create an rather abstract
        configuration dictionary, so that the GUI has no problems to build from that the proper
        viewwidgets.
        """

        # predefined definition dicts:
        float_def = {'unit': 's', 'init_val': 0.0, 'min': 0.0, 'max': np.inf,
                     'view_stepsize': 1e-9, 'dec': 8, 'unit_prefix': 'n', 'type': float}

        int_def = {'unit': '#', 'init_val': 0, 'min': 0, 'max': (2 ** 31 - 1),
                   'view_stepsize': 1, 'dec': 0, 'unit_prefix': '', 'type': int}

        bool_def = {'unit': 'bool', 'init_val': 0, 'min': 0, 'max': 1,
                    'view_stepsize': 1, 'dec': 0, 'unit_prefix': '', 'type': bool}

        seq_param_hardware = self._pulsed_meas_logic.get_pulser_constraints()['sequence_param']
        seq_param = OrderedDict()

        # What follows now is a converion algorithm, which takes one of the valid above definition
        # dicts. Then the keywords, which are given by the contraints are replaced with their
        # proper value from the constraints. Furthermore an bool entry has to be converted to an
        # integer expression (True=1, False=0). Then the parameter definition is appended to the
        # sequence configuration parameters

        for entry in seq_param_hardware:
            param = {}

            # check the type of the sequence parameter:
            if type(seq_param_hardware[entry]['min']) == bool:
                dict_def = bool_def
            elif type(seq_param_hardware[entry]['min']) == int:
                dict_def = int_def
            elif type(seq_param_hardware[entry]['min']) == float:
                dict_def = float_def
            else:
                self.log.error('The configuration dict for sequence '
                        'parameter could not be created, since the keyword '
                        '"min" in the parameter {0} does not correspond to '
                        'type of "bool", "int" nor "float" but has a type '
                        '{1}. Cannot handle that, therefore this parameter '
                        'is neglected.'.format(
                            entry, type(seq_param_hardware[entry]['min'])))
                dict_def = {}

            # go through the dict_def and replace all given entries by the sequence parameter
            # constraints from the hardware.
            for element in dict_def:

                if element == 'view_stepsize':
                    param['view_stepsize'] = seq_param_hardware[entry]['step']
                elif element == 'init_value':
                    # convert an bool value into an integer value:
                    if type(element) is bool:
                        param[element] = int(seq_param_hardware[entry]['min'])
                    else:
                        param[element] = seq_param_hardware[entry]['min']
                elif element in seq_param_hardware[entry]:
                    # convert an bool value into an integer value:
                    if type(seq_param_hardware[entry][element]) is bool:
                        param[element] = int(seq_param_hardware[entry][element])
                    else:
                        param[element] = seq_param_hardware[entry][element]
                else:
                    param[element] = dict_def[element]

            seq_param[entry] = param

        return seq_param

    def set_cfg_param_seq(self):
        """
        Set the parameter configuration of the Pulse_Sequence according to the current table
        configuration and updates the dict in the logic.
        """
        cfg_param_seq = OrderedDict()

        for column in range(self._mw.seq_editor_TableWidget.columnCount()):
            # keep in mind that the underscore was deleted for nicer representation during creation
            text = self._mw.seq_editor_TableWidget.horizontalHeaderItem(column).text().replace(' ','_')
            # split_text = text.split()
            cfg_param_seq[text] = column

        self._cfg_param_seq = cfg_param_seq


    def _set_sequence_editor_columns(self):
        """ Depending on the sequence parameters a table witll be created. """

        seq_param = self._seq_param

        # Erase the delegate from the column, pass a None reference:
        for column in range(self._mw.seq_editor_TableWidget.columnCount()):
            self._mw.seq_editor_TableWidget.setItemDelegateForColumn(column, None)

        # clear the number of columns:
        self._mw.seq_editor_TableWidget.setColumnCount(0)

        # set the count to the desired length:
        self._mw.seq_editor_TableWidget.setColumnCount(len(seq_param)+1)

        column = 0
        # set the name for the column:
        self._mw.seq_editor_TableWidget.setHorizontalHeaderItem(column, QtWidgets.QTableWidgetItem())
        self._mw.seq_editor_TableWidget.horizontalHeaderItem(column).setText('ensemble')
        self._mw.seq_editor_TableWidget.setColumnWidth(column, 100)

        # give the delegated object the reference to the method:
        item_dict = {}
        item_dict['get_list_method'] = self.get_current_ensemble_list

        comboDelegate = ComboBoxDelegate(self._mw.seq_editor_TableWidget, item_dict)
        self._mw.seq_editor_TableWidget.setItemDelegateForColumn(column, comboDelegate)

        # the first element was the ensemble combobox.
        column = 1
        for seq_param_name in seq_param:

            param = seq_param[seq_param_name]

            # self._mw.seq_editor_TableWidget.insertColumn(column)
            self._mw.seq_editor_TableWidget.setHorizontalHeaderItem(column, QtWidgets.QTableWidgetItem())
            header_name = seq_param_name.replace('_',' ')
            self._mw.seq_editor_TableWidget.horizontalHeaderItem(column).setText(header_name)
            self._mw.seq_editor_TableWidget.setColumnWidth(column, 80)

            # choose the proper delegate function:
            if param['type'] == bool:
                item_dict = param
                delegate = CheckBoxDelegate(self._mw.seq_editor_TableWidget, item_dict)
            elif param['type'] == int:
                item_dict = param
                delegate = SpinBoxDelegate(self._mw.seq_editor_TableWidget, item_dict)
            elif param['type'] == float:
                item_dict = param
                delegate = DoubleSpinBoxDelegate(self._mw.seq_editor_TableWidget, item_dict)

            self._mw.seq_editor_TableWidget.setItemDelegateForColumn(column, delegate)

            column += 1

        # at the end, initialize all the cells with the proper value:
        self.initialize_cells_sequence_editor(start_row=0,
                                              stop_row=self._mw.seq_editor_TableWidget.rowCount())

        self.set_cfg_param_seq()
        self._update_current_pulse_sequence()

    def initialize_cells_sequence_editor(self, start_row, stop_row=None,

                                         start_col=None, stop_col=None):
        """ Initialize the desired cells in the pulse sequence table.

        @param int start_row: index of the row, where the initialization should start
        @param int stop_row: optional, index of the row, where the initalization should end
        @param int start_col: optional, index of the column where the initialization should start
        @param int stop_col: optional, index of the column, where the initalization should end.

        With this function it is possible to reinitialize specific elements or part of a row or
        even the whole row. If start_row is set to 0 the whole row is going to be initialzed to the
        default value.
        """

        if stop_row is None:
            stop_row = start_row + 1

        if start_col is None:
            start_col = 0

        if stop_col is None:
            stop_col = self._mw.seq_editor_TableWidget.columnCount()

        for col_num in range(start_col, stop_col):

            for row_num in range(start_row, stop_row):
                # get the model, here are the data stored:
                model = self._mw.seq_editor_TableWidget.model()
                # get the corresponding index of the current element:
                index = model.index(row_num, col_num)
                # get the initial values of the delegate class which was
                # uses for this column:
                ini_values = self._mw.seq_editor_TableWidget.itemDelegateForColumn(col_num).get_initial_value()
                # set initial values:
                model.setData(index, ini_values[0], ini_values[1])


    def sequence_editor_add_row_before_selected(self, insert_rows=1):
        """ Add row before selected element. """

        self._mw.seq_editor_TableWidget.blockSignals(True)

        selected_row = self._mw.seq_editor_TableWidget.currentRow()

        # the signal passes a boolean value, which overwrites the insert_rows
        # parameter. Check that here and use the actual default value:
        if type(insert_rows) is bool:
            insert_rows = 1

        for rows in range(insert_rows):
            self._mw.seq_editor_TableWidget.insertRow(selected_row)
        self.initialize_cells_sequence_editor(start_row=selected_row,
                                              stop_row=selected_row + insert_rows)

        self._mw.seq_editor_TableWidget.blockSignals(False)
        self._update_current_pulse_sequence()

    def sequence_editor_add_row_after_last(self, insert_rows=1):

        """ Add row after last row in the sequence editor. """

        self._mw.seq_editor_TableWidget.blockSignals(True)

        # the signal passes a boolean value, which overwrites the insert_rows
        # parameter. Check that here and use the actual default value:
        if type(insert_rows) is bool:
            insert_rows = 1

        number_of_rows = self._mw.seq_editor_TableWidget.rowCount()

        self._mw.seq_editor_TableWidget.setRowCount(
            number_of_rows + insert_rows)
        self.initialize_cells_sequence_editor(start_row=number_of_rows,
                                              stop_row=number_of_rows + insert_rows)

        self._mw.seq_editor_TableWidget.blockSignals(False)
        self._update_current_pulse_sequence()

    def sequence_editor_delete_row_selected(self):
        """ Delete row of selected element. """

        # get the row number of the selected item(s). That will return the
        # lowest selected row
        row_to_remove = self._mw.seq_editor_TableWidget.currentRow()
        self._mw.seq_editor_TableWidget.removeRow(row_to_remove)
        self._update_current_pulse_sequence()

    def sequence_editor_delete_row_last(self):
        """ Delete the last row in the sequence editor. """

        number_of_rows = self._mw.seq_editor_TableWidget.rowCount()
        # remember, the row index is started to count from 0 and not from 1,
        # therefore one has to reduce the value by 1:
        self._mw.seq_editor_TableWidget.removeRow(number_of_rows - 1)
        self._update_current_pulse_sequence()

    def sequence_editor_clear_table(self):
        """ Delete all rows in the sequence editor table. """

        self._mw.seq_editor_TableWidget.blockSignals(True)

        self._mw.seq_editor_TableWidget.setRowCount(1)
        self._mw.seq_editor_TableWidget.clearContents()

        self.initialize_cells_sequence_editor(start_row=0)
        self._mw.seq_editor_TableWidget.blockSignals(False)
        self._update_current_pulse_sequence()


    # load, delete, generate and update functionality for pulse sequence:

    def load_pulse_sequence_clicked(self, sequence_name=None):
        """ Loads the current selected Pulse_Sequence object from the logic into the editor or a
            specified object with name sequence_name.

        @param str sequence_name: optional, name of a Pulse_Sequence object, which should be loaded
                                  into the GUI Sequence Editor. If no name passed, the current
                                  Pulse_Sequence from the Logic is taken to be loaded.

        Unfortuanetly this method needs to know how Pulse_Sequence objects are looking like and
        cannot be that general, since it will load an object and a table, where the data have to be
        converted.
        """

        # NOTE: This method will be connected to the CLICK event of a QPushButton, which passes an
        #       optional argument as a bool value depending on the checked state of the
        #       QPushButton (that is called an overloaded routine). The passed boolean value has to
        #       be handled in addition!

        if (sequence_name is not None) and (type(sequence_name) is not bool):
            current_sequence_name = sequence_name
        else:
            current_sequence_name = self._mw.saved_seq_ComboBox.currentText()

        # get the ensemble object and set as current ensemble
        seq_obj = self._seq_gen_logic.get_pulse_sequence(current_sequence_name,
                                                         set_as_current_sequence=True)

        # Check whether an sequence is found, otherwise there will be None:
        if seq_obj is None:
            return

        self.sequence_editor_clear_table()  # clear the block organizer table
        rows = len(seq_obj.ensemble_param_list)  # get amout of rows needed for display

        # add as many rows as there are blocks in the sequence minus 1 because a single row is
        # already present after clear
        self.sequence_editor_add_row_after_last(rows - 1)

        # This dictionary has the information which column number describes which object, it is a
        # configuration dict between GUI and logic.
        seq_config_dict = self._cfg_param_seq

        # run through all blocks in the block_elements block_list to fill in the
        # row informations
        for row_index, (pulse_ensemble, seq_param) in enumerate(seq_obj.ensemble_param_list):

            column = seq_config_dict['ensemble']
            self.set_element_in_sequence_table(row_index, column, pulse_ensemble.name)

            # boa... int is not equal to np.int32 that has to handled!
            for entry in seq_param:
                column = seq_config_dict[entry]
                if type(seq_param[entry]) is np.int32:
                    self.set_element_in_sequence_table(row_index, column, int(seq_param[entry]))
                elif type(seq_param[entry]) is np.float32:
                    self.set_element_in_sequence_table(row_index, column, float(seq_param[entry]))
                else:
                    self.set_element_in_sequence_table(row_index, column, seq_param[entry])
        # set the ensemble name LineEdit to the current ensemble
        self._mw.curr_seq_name_LineEdit.setText(current_sequence_name)
        pass

    def delete_pulse_sequence_clicked(self):
        """
        Actions to perform when the delete button in the sequence editor is clicked
        """
        name = self._mw.saved_seq_ComboBox.currentText()
        self._seq_gen_logic.delete_sequence(name)
        self.update_sequence_list()
        return


    def generate_pulse_sequence_clicked(self):
        """ Generate a Pulse_Sequence object."""
        objectname = self._mw.curr_seq_name_LineEdit.text()
        if objectname == '':
            self.log.warning('No Name for Pulse_Sequence specified. '
                    'Generation aborted!')
            return
        rotating_frame = self._mw.curr_seq_rot_frame_CheckBox.isChecked()

        self.generate_pulse_sequence_object(objectname, self.get_sequence_table(), rotating_frame)

    def generate_pulse_sequence_object(self, sequence_name, sequence_matrix, rotating_frame=True):
        """ Generates a Pulse_Sequence object out of the corresponding editor table/matrix.

        @param str sequence_name: name of the created Pulse_Sequence object
        @param np.array sequence_matrix: structured 2D np.array, matrix, in which the construction
                                         plan for Pulse_Block_Ensemble objects are displayed as
                                         rows.
        @param bool rotating_frame: optional, whether the phase preservation is mentained
                                    throughout the sequence.

        Creates a collection of Pulse_Block_Ensemble objects.
        """
        # list of all the Pulse_Block_Ensemble objects and their parameters
        ensemble_param_list = [None] * len(sequence_matrix)

        for row_index, row in enumerate(sequence_matrix):
            # the ensemble entry must be always (!) present, therefore this entry in the
            # configuration dict for the sequence parameter are taken for granted. Get from the
            # cfg_param_seq the relative situation to the other parameters (which is in the table
            # the column number)
            column_index = self._cfg_param_seq['ensemble']
            pulse_block_ensemble_name = row[column_index].decode('UTF-8')

            # the rest must be obtained together with the actual sequence configuration parameter
            # dict cfg_param_seq and the hardware constraints:
            seq_param_hardware = self._pulsed_meas_logic.get_pulser_constraints()['sequence_param']

            # here the actual configuration will be save:
            seq_param = dict()

            for param in seq_param_hardware:
                # get the the relative situation to the other parameters (which is in the table
                # the column number):
                column_index = self._cfg_param_seq[param]
                # save in the sequenc parameter dict:
                seq_param[param] = row[column_index]

            # small and simple search routine, which tries to extract a repetition parameter
            # (but the presence of such parameter is not assumed!):
            # All the sequence parameter keywords are string identifiers.
            for param in seq_param:
                if 'reps' in param.lower() or 'repetition' in param.lower():
                    pulse_block_ensemble_reps = seq_param[param]
                    break
                else:
                    pulse_block_ensemble_reps = 0

            # get the reference on the Pulse_Block_Ensemble object:
            pulse_block_ensemble = self._seq_gen_logic.get_pulse_block_ensemble(
                pulse_block_ensemble_name)

            # save in the list the object and sequence parameter
            ensemble_param_list[row_index] = (pulse_block_ensemble, seq_param)

        pulse_sequence = Pulse_Sequence(name=sequence_name, ensemble_param_list=ensemble_param_list,
                                        rotating_frame=rotating_frame)
        # save sequence
        self._seq_gen_logic.save_sequence(sequence_name, pulse_sequence)


    def update_sequence_list(self):
        """  Called upon signal_block_list_updated emit of the sequence_generator_logic.

        Updates all ComboBoxes showing generated blocks.
        """
        # # updated list of all generated blocks
        new_list = self._seq_gen_logic.saved_pulse_sequences
        # update saved_blocks_ComboBox items
        self._mw.saved_seq_ComboBox.clear()
        self._mw.saved_seq_ComboBox.addItems(new_list)

        self._mw.upload_seq_ComboBox.clear()
        self._mw.upload_seq_ComboBox.addItems(new_list)

        # Set active index of the ComboBoxes to the currently shown/last created sequence
        if self._seq_gen_logic.current_sequence is not None:

            # get last generated and currently shown ensemble name from logic
            current_sequence_name = self._seq_gen_logic.current_sequence.name
            # identify the corresponding index within the ComboBox
            index_to_set = self._mw.upload_seq_ComboBox.findText(current_sequence_name)

            self._mw.saved_seq_ComboBox.setCurrentIndex(index_to_set)
            self._mw.upload_seq_ComboBox.setCurrentIndex(index_to_set)
        else:
            # set the current sequence in the logic and all ComboBoxes to the currently
            # shown sequence in the upload_seq_ComboBox.

            current_sequence_name = self._mw.upload_seq_ComboBox.currentText()
            index_to_set = self._mw.saved_seq_ComboBox.findText(current_sequence_name)
            self._mw.saved_seq_ComboBox.setCurrentIndex(index_to_set)
            self.load_pulse_sequence_clicked()
        return

    def _update_current_pulse_sequence(self):
        """ Update the current Pulse Sequence Info in the display. """

        length_milli = 0.0  # in milliseconds
        length_bin = 0
        # num_laser_pulses = 0


        pulse_block_col = self._cfg_param_seq['ensemble']

        reps_col = self._cfg_param_seq.get('reps')

        if len(self._seq_gen_logic.saved_pulse_block_ensembles) > 0:
            for row_ind in range(self._mw.seq_editor_TableWidget.rowCount()):
                pulse_block_ensemble_name = self.get_element_in_sequence_table(row_ind, pulse_block_col)

                ensemble_obj = self._seq_gen_logic.get_pulse_block_ensemble(pulse_block_ensemble_name)

                if reps_col is None:
                    reps = 0
                else:
                    reps = self.get_element_in_sequence_table(row_ind, reps_col)

                # Calculate the length via the gaussian summation formula:
                length_bin = int(length_bin + ensemble_obj.length_bins * (reps + 1) )

                # num_laser_pulses = num_laser_pulses + block_obj.number_of_lasers * (reps + 1)

            length_milli = (length_bin / self._seq_gen_logic.sample_rate) * 1e3  # in milliseconds

        self._mw.curr_seq_length_DSpinBox.setValue(length_milli)
        self._mw.curr_seq_bins_SpinBox.setValue(length_bin)
        # self._mw.curr_ensemble_laserpulses_SpinBox.setValue(num_laser_pulses)
        return


    # Sample, Upload and Load functionality for Pulse Sequence

    def sample_sequence_clicked(self):
        """
        This method is called when the user clicks on "sample"
        """
        # Get the ensemble name to be uploaded from the ComboBox
        sequence_name = self._mw.upload_seq_ComboBox.currentText()

        # Sample the ensemble via logic module

        self._seq_gen_logic.sample_pulse_sequence(sequence_name, write_to_file=True,
                                                  chunkwise=self._write_chunkwise)
        return

    def upload_seq_to_device_clicked(self):
        """
        This method is called when the user clicks on "upload to device"
        """

        # Get the asset name to be uploaded from the ComboBox
        seq_name = self._mw.upload_seq_ComboBox.currentText()
        print(seq_name)

        # Upload the asset via logic module
        self._pulsed_meas_logic.upload_asset(seq_name)
        return

    def load_seq_into_channel_clicked(self):
        """
        This method is called when the user clicks on "load to channel"
        """
        # Get the asset name to be uploaded from the ComboBox
        asset_name = self._mw.upload_seq_ComboBox.currentText()

        # Check out on which channel it should be uploaded:
        # FIXME: Implement a proper GUI element (upload center) to manually assign assets to channels
        # Right now the default is chosen to invoke channel assignment from the Ensemble/Sequence object
        load_dict = {}

        # Load asset into channles via logic module
        self._pulsed_meas_logic.load_asset(asset_name, load_dict)
        return

    def get_element_in_sequence_table(self, row, column):
        """ Simplified wrapper function to get the data from a specific cell in the pulse sequence
            table.

        @param int row: row index
        @param int column: column index

        @return: the value of the corresponding cell, which can be a string, a float or an integer.
                 Remember that the checkbox state unchecked corresponds to 0 and check to 2. That
                 is Qt convention.

        Note that the order of the arguments in this function (first row index
        and then column index) was taken from the Qt convention.
        """

        tab = self._mw.seq_editor_TableWidget

        # Get from the corresponding delegate the data access model
        access = tab.itemDelegateForColumn(column).model_data_access
        data = tab.model().index(row, column).data(access)

        # check whether the value has to be normalized to SI values.
        if hasattr(tab.itemDelegateForColumn(column), 'get_unit_prefix'):
            unit_prefix = tab.itemDelegateForColumn(column).get_unit_prefix()
            # access the method defined in base for unit prefix:
            return data * units.get_unit_prefix_dict()[unit_prefix]

        return data

    def set_element_in_sequence_table(self, row, column, value):
        """ Simplified wrapper function to set the data to a specific cell in the pulse sequence
            table.

        @param int row: row index
        @param int column: column index

        Note that the order of the arguments in this function (first row index and then column
        index) was taken from the Qt convention.
        A type check will be performed for the passed value argument. If the type does not
        correspond to the delegate, then the value will not be changed. You have to ensure that!
        """

        tab = self._mw.seq_editor_TableWidget
        model = tab.model()
        access = tab.itemDelegateForColumn(column).model_data_access
        data = tab.model().index(row, column).data(access)

        if type(data) == type(value):
            model.setData(model.index(row, column), value, access)
        else:
            self.log.warning('The cell ({0},{1}) in pulse sequence table '
                    'could not be assigned with the value="{2}", since the '
                    'type "{3}" of the cell of the delegated column differs '
                    'from the type "{4}" of the value!\n'
                    'Previous value will be kept.'.format(
                        row, column, value, type(data), type(value)))
        return

    def get_sequence_table(self):
        """ Convert sequence table data to numpy array.

        @return: np.array[rows][columns] which has a structure, i.e. strings
                 integer and float values are represented by this array.
        """

        tab = self._mw.seq_editor_TableWidget

        # create a structure for the output numpy array:
        structure = ''
        for column in range(tab.columnCount()):
            elem = self.get_element_in_sequence_table(0, column)
            if type(elem) is str:
                structure = structure + '|S20, '
            elif type(elem) is int:
                structure = structure + '|int, '
            elif type(elem) is float:
                structure = structure + '|float, '
            else:
                self.log.error('Type definition not found in the sequence '
                        'table.'
                        '\nType is neither a string, integer or float. '
                        'Include that type in the get_sequence_table method!')

        # remove the last two elements since these are a comma and a space:
        structure = structure[:-2]
        table = np.zeros(tab.rowCount(), dtype=structure)

        # fill the return table:
        for column in range(tab.columnCount()):
            for row in range(tab.rowCount()):
                table[row][column] = self.get_element_in_sequence_table(row, column)

        return table


    ###########################################################################
    ###    Methods related to Settings for the 'Pulse Extraction' Tab:      ###
    ###########################################################################

    #FIXME: Implement the setting for 'Pulse Extraction' tab.

    def _activate_pulse_extraction_settings_ui(self, e):
        """ Initialize, connect and configure the Settings of the
        'Sequence Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """
        pass

    def _deactivate_pulse_extraction_settings_ui(self, e):
        """ Disconnects the configuration of the Settings for the
        'Sequence Generator' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """

        pass


    ###########################################################################
    ###          Methods related to the Tab 'Pulse Extraction':             ###
    ###########################################################################


    def _activate_pulse_extraction_ui(self, e):
        """ Initialize, connect and configure the 'Pulse Extraction' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """

        # Configure all objects for laserpulses_PlotWidget and also itself:

        # Adjust settings for the moveable lines in the pulses plot:
        self.sig_start_line = pg.InfiniteLine(pos=0, pen=QtGui.QPen(palette.c3), movable=True)
        self.sig_start_line.setHoverPen(QtGui.QPen(palette.c2))
        self.sig_end_line = pg.InfiniteLine(pos=0, pen=QtGui.QPen(palette.c3), movable=True)
        self.sig_end_line.setHoverPen(QtGui.QPen(palette.c2))
        self.ref_start_line = pg.InfiniteLine(pos=0, pen=QtGui.QPen(palettedark.c4), movable=True)
        self.ref_start_line.setHoverPen(QtGui.QPen(palette.c4))
        self.ref_end_line = pg.InfiniteLine(pos=0, pen=QtGui.QPen(palettedark.c4), movable=True)
        self.ref_end_line.setHoverPen(QtGui.QPen(palette.c4))

        # the actual data:
        self.lasertrace_image = pg.PlotDataItem(self._pulsed_meas_logic.laser_plot_x,
                                                self._pulsed_meas_logic.laser_plot_y,
                                                pen=palette.c1)

        self._mw.laserpulses_PlotWidget.addItem(self.lasertrace_image)
        self._mw.laserpulses_PlotWidget.addItem(self.sig_start_line)
        self._mw.laserpulses_PlotWidget.addItem(self.sig_end_line)
        self._mw.laserpulses_PlotWidget.addItem(self.ref_start_line)
        self._mw.laserpulses_PlotWidget.addItem(self.ref_end_line)

        #self._mw.laserpulses_PlotWidget.setLabel('bottom', 'tau', units='s')
        self._mw.laserpulses_PlotWidget.setLabel('bottom', 'bins')

        # Configure all objects for measuring_error_PlotWidget and also itself:
        self.measuring_error_image = pg.PlotDataItem(self._pulsed_meas_logic.measuring_error_plot_x,
                                                     self._pulsed_meas_logic.measuring_error_plot_y*1000,
                                                     pen=palette.c1)
        self._mw.measuring_error_PlotWidget.addItem(self.measuring_error_image)
        self._mw.measuring_error_PlotWidget.setLabel('left', 'measuring error', units='a.u.')
        self._mw.measuring_error_PlotWidget.setLabel('bottom', 'tau', units='ns')

        self._mw.extract_param_ana_window_start_SpinBox.setValue(self._pulsed_meas_logic.signal_start_bin)
        self._mw.extract_param_ana_window_width_SpinBox.setValue(self._pulsed_meas_logic.signal_width_bin)
        self._mw.extract_param_ref_window_start_SpinBox.setValue(self._pulsed_meas_logic.norm_start_bin)
        self._mw.extract_param_ref_window_width_SpinBox.setValue(self._pulsed_meas_logic.norm_width_bin)

        # Display laser pulses, connect change of viewboxes and change of lines:
        self._mw.extract_param_ana_window_start_SpinBox.valueChanged.connect(self.analysis_window_values_changed)
        self._mw.extract_param_ana_window_width_SpinBox.valueChanged.connect(self.analysis_window_values_changed)
        self._mw.extract_param_ref_window_start_SpinBox.valueChanged.connect(self.analysis_window_values_changed)
        self._mw.extract_param_ref_window_width_SpinBox.valueChanged.connect(self.analysis_window_values_changed)
        self.analysis_window_values_changed()   # run it to apply changes.

        self.sig_start_line.sigPositionChanged.connect(self.analysis_window_sig_line_start_changed)

        self.sig_end_line.sigPositionChanged.connect(self.analysis_window_sig_line_stop_changed)
        self.ref_start_line.sigPositionChanged.connect(self.analysis_window_ref_line_start_changed)
        self.ref_end_line.sigPositionChanged.connect(self.analysis_window_ref_line_stop_changed)

        self._mw.laserpulses_ComboBox.currentIndexChanged.connect(self.refresh_laser_pulses_display)
        self._mw.laserpulses_display_raw_CheckBox.stateChanged.connect(self.refresh_laser_pulses_display)

        self._pulsed_meas_logic.sigSinglePulsesUpdated.connect(self.refresh_laser_pulses_display)
        self._pulsed_meas_logic.sigPulseAnalysisUpdated.connect(self.refresh_laser_pulses_display)

        # Setting standard deviation of gaussian convolution
        self._mw.conv_std_dev.setRange(self._pulsed_meas_logic.conv_std_dev_range_min, self._pulsed_meas_logic.conv_std_dev_range_max)
        self._mw.conv_std_dev.setValue(self._pulsed_meas_logic.conv_std_dev)
        self._mw.conv_std_dev.valueChanged.connect(self.conv_std_dev_changed)

        self._mw.slider_conv_std_dev.setRange(self._pulsed_meas_logic.conv_std_dev_range_min, self._pulsed_meas_logic.conv_std_dev_range_max)
        self._mw.slider_conv_std_dev.sliderMoved.connect(self.slider_conv_std_dev_changed)

    def _deactivate_pulse_extraction_ui(self, e):
        """ Disconnects the configuration for 'Pulse Extraction' Tab.

        @param object e: Fysom.event object from Fysom class. A more detailed
                         explanation can be found in the method initUI.
        """

    def num_of_lasers_changed(self):
        """
        Handle what happens if number of laser pulses changes.
        """
        self._mw.laserpulses_ComboBox.blockSignals(True)

        self._mw.laserpulses_ComboBox.clear()
        self._mw.laserpulses_ComboBox.addItem('sum')
        new_num_of_lasers = self._mw.ana_param_num_laser_pulse_SpinBox.value()
        for ii in range(new_num_of_lasers):
            self._mw.laserpulses_ComboBox.addItem(str(1+ii))

        self._mw.laserpulses_ComboBox.blockSignals(False)

        if self._mw.ana_param_laserpulse_defined_CheckBox.isChecked():
            self._pulsed_meas_logic.set_num_of_lasers(new_num_of_lasers)

        self.analysis_xaxis_changed()

    def laser_length_changed(self):
        """
        Handle what happens if length of laser pulses change.
        """
        new_laser_length = self._mw.ana_param_laser_length_SpinBox.value()/1e9
        self._pulsed_meas_logic.set_laser_length(new_laser_length)

    def conv_std_dev_changed(self):
        """
        Uodate new value of standard deviation of gaussian filter
        """

        std_dev = self._mw.conv_std_dev.value()
        self._mw.slider_conv_std_dev.setValue(std_dev)
        self._pulsed_meas_logic.conv_std_dev = std_dev

    def slider_conv_std_dev_changed(self):
        """
        Uodate new value of standard deviation of gaussian filter
        from slider
        """

        std_dev = self._mw.slider_conv_std_dev.value()
        self._mw.conv_std_dev.setValue(std_dev)
        self._pulsed_meas_logic.conv_std_dev = std_dev

    def analysis_window_values_changed(self):
        """ If the boarders or the lines are changed update the other parameters
        """

        sig_start = self._mw.extract_param_ana_window_start_SpinBox.value()
        sig_length = self._mw.extract_param_ana_window_width_SpinBox.value()
        ref_start = self._mw.extract_param_ref_window_start_SpinBox.value()
        ref_length = self._mw.extract_param_ref_window_width_SpinBox.value()

        self.sig_start_line.setValue(sig_start)
        self.sig_end_line.setValue(sig_start+sig_length)

        self.ref_start_line.setValue(ref_start)
        self.ref_end_line.setValue(ref_start+ref_length)

        self._pulsed_meas_logic.signal_start_bin = sig_start
        self._pulsed_meas_logic.signal_width_bin = sig_length
        self._pulsed_meas_logic.norm_start_bin = ref_start
        self._pulsed_meas_logic.norm_width_bin = ref_length

    def analysis_window_sig_line_start_changed(self):
        """ React when the start signal line get moved by the user. """
        sig_start = self.sig_start_line.value()
        self._mw.extract_param_ana_window_start_SpinBox.setValue(sig_start)
        self._pulsed_meas_logic.signal_start_bin = int(sig_start)

    def analysis_window_sig_line_stop_changed(self):
        """ React when the stop signal line get moved by the user. """
        sig_start = self.sig_start_line.value()

        sig_length = self.sig_end_line.value() - sig_start
        self._mw.extract_param_ana_window_width_SpinBox.setValue(sig_length)
        self._pulsed_meas_logic.signal_width_bin = int(sig_length)

    def analysis_window_ref_line_start_changed(self):
        """ React when the reference start line get moved by the user. """
        ref_start = self.ref_start_line.value()
        self._mw.extract_param_ref_window_start_SpinBox.setValue(ref_start)
        self._pulsed_meas_logic.norm_start_bin = int(ref_start)

    def analysis_window_ref_line_stop_changed(self):
        """ React when the reference stop line get moved by the user. """
        ref_start = self.ref_start_line.value()
        ref_length = self.ref_end_line.value()-ref_start
        self._mw.extract_param_ref_window_width_SpinBox.setValue(ref_length)
        self._pulsed_meas_logic.norm_width_bin = int(ref_length)

    def refresh_laser_pulses_display(self):
        """ Refresh the extracted laser pulse display. """
        current_laser = self._mw.laserpulses_ComboBox.currentText()


        if current_laser == 'sum':
            show_laser_num = 0
        else:
            show_laser_num = int(current_laser)

        if self._mw.laserpulses_display_raw_CheckBox.isChecked():
            self._pulsed_meas_logic.raw_laser_pulse = True
        else:
            self._pulsed_meas_logic.raw_laser_pulse = False

        x_data, y_data = self._pulsed_meas_logic.get_laserpulse(show_laser_num)

        self.lasertrace_image.setData(x=x_data, y=y_data)

    def save_plots(self):
        """ Save plot from analysis graph as a picture. """
        timestamp = datetime.datetime.now()
        filetag = self._mw.save_tag_LineEdit.text()
        filepath = self._save_logic.get_path_for_module(module_name='PulsedMeasurement')
        if len(filetag) > 0:
            filename = os.path.join(filepath, '{0}_{1}_pulsed'.format(timestamp.strftime('%Y%m%d-%H%M-%S'), filetag))
        else:
            filename = os.path.join(filepath, '{0}_pulsed'.format(timestamp.strftime('%Y%m%d-%H%M-%S')))

        # print(type(self._mw.second_plot_ComboBox.currentText()), self._mw.second_plot_ComboBox.currentText())
        # pulse plot
        # exporter = pg.exporters.SVGExporter(self._mw.pulse_analysis_PlotWidget.plotItem.scene())
        # exporter.export(filename+'.svg')
        #
        # # auxiliary plot
        # if 'None' not in self._mw.second_plot_ComboBox.currentText():
        #     exporter_aux = pg.exporters.SVGExporter(self._mw.pulse_analysis_second_PlotWidget.plotItem.scene())
        #     exporter_aux.export(filename + '_aux' + '.svg')

        self._pulsed_meas_logic._save_data(filetag, timestamp)




Ulm-IQO / qudi

Push — pulsed_with_queued_connections ( 6b1460...30fbbf )

PulsedMeasurementGui.generate_pulse_block_ensemble_clicked() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like
