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Controllers

App Controller

app_controller

AppController 

AppController()

A class used to control the application's logic.

This class is responsible for handling user interactions and updating the application's state accordingly.

Attributes:

Name Type Description
main_view object

An instance of the MainView class.
current_method str

The currently selected analysis method.
sidebar object

An instance of the Sidebar class.
template_layout object

A FastListTemplate instance for the application layout.
file_paths str

The paths to the data files.

Methods:

Name Description
handle_fileupload_event

Handles the file upload event.
handle_sidebar_event

Handles the sidebar event.
handle_table_choose_event

Handles the table choose event.
handle_intslider_event

Handles the intslider event.
handle_blocksize_selector_event

Handles the blocksize selector event.
handle_update_analysis_event

Handles the update analysis event.

The main_view attribute is initialized as a MainView instance. The current_method attribute is initialized with a string value. The sidebar attribute is initialized as a Sidebar instance with specific event handlers. The template_layout attribute is initialized as a FastListTemplate instance with specific parameters. The file_paths attribute is initialized as None.

Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def __init__(self):
    """
    Constructs all the necessary attributes for the AppController object.

    The main_view attribute is initialized as a MainView instance.
    The current_method attribute is initialized with a string value.
    The sidebar attribute is initialized as a Sidebar instance with specific event handlers.
    The template_layout attribute is initialized as a FastListTemplate instance with specific parameters.
    The file_paths attribute is initialized as None.
    """
    # Initialization of main and side views
    self.main_view = MainView()
    self.current_method = 'No Analysis Function'
    self.sidebar = Sidebar(self.handle_fileupload_event, self.handle_sidebar_event, self.handle_table_choose_event,
                            self.handle_intslider_event, self.handle_blocksize_selector_event, self.handle_update_analysis_event,
                            self.handle_export_event, self.handle_method_event)

    # Initialization of panel extensions and template
    self.template_layout = pn.template.FastListTemplate(title="FFT-Analysator",
                                                        header_background="#E91E63",
                                                        accent_base_color="#E91E63",
                                                        theme="dark",
                                                        sidebar=self.sidebar.layout,
                                                        main=self.main_view.layout
                                                        )

    # Initialization of data preprocessing and binary file
    self.file_paths = None
    self.preprocessing = None

data_selection 

data_selection(method)

Selects the appropriate data based on the selected method.

This method is responsible for selecting the appropriate data based on the method chosen by the user.

Parameters:

Name Type Description Default
method str

The selected method.

 required

Returns:

Name Type Description
data array

The selected data.
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def data_selection(self, method):
    """
    Selects the appropriate data based on the selected method.

    This method is responsible for selecting the appropriate data based on the method chosen by the user.

    Args:
        method (str): The selected method.

    Returns:
        data (np.array): The selected data.
    """
    data = self.signal_process.current_data

    if method == "Cross Spectral Density":
        data = np.abs(self.signal_process.current_data[:, 0, 1])

    if method == "Auto Spectral Density - Input":
        data = np.abs(self.signal_process.current_data[:, 0, 0])

    if method == "Auto Spectral Density - Output":
        data = np.abs(self.signal_process.current_data[:, 1, 1])

    if method == "Impulse Response":
        data = self.signal_process.impulse_response_data

    if method == "Amplitude Response":
        data = self.signal_process.amplitude_response_data

    if method == "Phase Response":
        data = self.signal_process.phase_response_data

    return data

handle_blocksize_selector_event 

handle_blocksize_selector_event(event)

Handles the blocksize selector event.

This method is responsible for handling the event when a user interacts with the blocksize selector.

Parameters:

Name Type Description Default
event object

The event that triggers the export.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_blocksize_selector_event(self, event):
    """
    Handles the blocksize selector event.

    This method is responsible for handling the event when a user interacts with the blocksize selector.

    Args:
        event (object): The event that triggers the export.

    Returns:
        None
    """
    if self.file_paths:
        # reinitalize the preprocessing object with the new blocksize
        self.preprocessing = pp.Preprocess(self.file_paths, self.sidebar.accordion.blocksize_selector.component.value)
        self.signal_process = Signal_Process(channels=[], file_path=self.file_paths,
                                            block_size=self.sidebar.accordion.blocksize_selector.component.value,
                                            data_callback=self.preprocessing)

        # update the sidebar components
        self.sidebar.update_file_list()
        self.sidebar.update_selector(self.preprocessing)
        self.sidebar.update_channel_selector(self.preprocessing)
        self.sidebar.update_intslider(self.preprocessing)
        self.main_view.update_signal(
            self.preprocessing,
            self.signal_process,
            [self.sidebar.accordion.channel_selector_input.component.value,
            self.sidebar.accordion.channel_selector_output.component.value],
            self.sidebar.accordion.toggle_group.stretch,
            [self.sidebar.accordion.color_picker_ch1.component.value,
            self.sidebar.accordion.color_picker_ch2.component.value,
            self.sidebar.accordion.color_picker_result.component.value],
            self.sidebar.accordion.window_selector.component.value,
            self.sidebar.accordion.overlap_selector.component.value,
            self.sidebar.accordion.toggle_group.grid,
            self.sidebar.accordion.toggle_x_axis.x_log,
            self.sidebar.accordion.toggle_y_axis.y_log,
            self.sidebar.accordion.toggle_group.db,
        )
        self.main_view.update_analysis_plot(
                    self.preprocessing,
                    self.signal_process,
                    [self.sidebar.accordion.channel_selector_input.component.value,
                    self.sidebar.accordion.channel_selector_output.component.value],
                    self.sidebar.accordion.toggle_group.stretch,
                    [self.sidebar.accordion.color_picker_ch1.component.value,
                    self.sidebar.accordion.color_picker_ch2.component.value,
                    self.sidebar.accordion.color_picker_result.component.value],
                    self.sidebar.accordion.method_selector.component.value,
                    self.sidebar.accordion.window_selector.component.value,
                    self.sidebar.accordion.overlap_selector.component.value,
                    self.sidebar.accordion.toggle_group.grid,
                    self.sidebar.accordion.toggle_x_axis.x_log,
                    self.sidebar.accordion.toggle_y_axis.y_log,
                    self.sidebar.accordion.toggle_group.db,

                )

handle_export_event 

handle_export_event(event)

Handles the export event.

This method is responsible for exporting the data when the export button is clicked.

Parameters:

Name Type Description Default
event object

The event that triggers the export.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_export_event(self, event):
    """
    Handles the export event.

    This method is responsible for exporting the data when the export button is clicked.

    Args:
        event (object): The event that triggers the export.

    Returns:
        None
    """
    if (event.obj == self.sidebar.accordion.file_exporter.component):
        data = self.data_selection(self.sidebar.accordion.method_selector.component.value)

        self.sidebar.accordion.file_exporter.select_directory(event, data,
                    self.sidebar.accordion.channel_selector_input.component.value,
                    self.sidebar.accordion.channel_selector_output.component.value,
                    self.sidebar.accordion.method_selector.component.value,
                    self.sidebar.accordion.exporter_selector.component.value,
                    self.sidebar.accordion.window_selector.component.value,
                    self.sidebar.accordion.overlap_selector.component.value,)

handle_fileupload_event 

handle_fileupload_event(event)

Handles the file upload event.

This method is responsible for handling the event when a file is uploaded by the user.

Parameters:

Name Type Description Default
event object

The event that triggers the export.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_fileupload_event(self, event):
    """
    Handles the file upload event.

    This method is responsible for handling the event when a file is uploaded by the user.

    Args:
        event (object): The event that triggers the export.

    Returns:
        None
    """
    # Handle the file upload event and update the preprocessing object
    self.file_paths = self.sidebar.accordion.file_input.file_paths

    if self.preprocessing and self.file_paths:
        self.preprocessing = pp.Preprocess(self.file_paths, self.sidebar.accordion.blocksize_selector.component.value)
        self.signal_process = Signal_Process(channels=[], file_path=self.file_paths,
                                            block_size=self.sidebar.accordion.blocksize_selector.component.value,
                                            data_callback=self.preprocessing)
        # signal_process insert
        if event.obj == self.sidebar.accordion.file_input.component:
            self.sidebar.update_file_list()
            self.sidebar.update_selector(self.preprocessing)
            self.sidebar.update_channel_selector(self.preprocessing)
            self.sidebar.update_intslider(self.preprocessing)
            self.sidebar.update_general_plotting_widgets(self.preprocessing)

        self.main_view.update_signal(
            self.preprocessing,
            self.signal_process,
            [self.sidebar.accordion.channel_selector_input.component.value,
            self.sidebar.accordion.channel_selector_output.component.value],
            self.sidebar.accordion.toggle_group.stretch,
            [self.sidebar.accordion.color_picker_ch1.component.value,
            self.sidebar.accordion.color_picker_ch2.component.value,
            self.sidebar.accordion.color_picker_result.component.value],
            self.sidebar.accordion.window_selector.component.value,
            self.sidebar.accordion.overlap_selector.component.value,
            self.sidebar.accordion.toggle_group.grid,
            self.sidebar.accordion.toggle_x_axis.x_log,
            self.sidebar.accordion.toggle_y_axis.y_log,
            self.sidebar.accordion.toggle_group.db,
        )
        self.main_view.update_analysis_plot(
                    self.preprocessing,
                    self.signal_process,
                    [self.sidebar.accordion.channel_selector_input.component.value,
                    self.sidebar.accordion.channel_selector_output.component.value],
                    self.sidebar.accordion.toggle_group.stretch,
                    [self.sidebar.accordion.color_picker_ch1.component.value,
                    self.sidebar.accordion.color_picker_ch2.component.value,
                    self.sidebar.accordion.color_picker_result.component.value],
                    self.sidebar.accordion.method_selector.component.value,
                    self.sidebar.accordion.window_selector.component.value,
                    self.sidebar.accordion.overlap_selector.component.value,
                    self.sidebar.accordion.toggle_group.grid,
                    self.sidebar.accordion.toggle_x_axis.x_log,
                    self.sidebar.accordion.toggle_y_axis.y_log,
                    self.sidebar.accordion.toggle_group.db,

                )
    elif self.file_paths and self.preprocessing is None:
        self.preprocessing = pp.Preprocess(self.file_paths, self.sidebar.accordion.blocksize_selector.component.value)
        self.signal_process = Signal_Process(channels=[], file_path=self.file_paths,
                                            block_size=self.sidebar.accordion.blocksize_selector.component.value,
                                            data_callback=self.preprocessing)
        # signal_process insert
        if event.obj == self.sidebar.accordion.file_input.component:
            self.sidebar.update_file_list()
            self.sidebar.update_selector(self.preprocessing)
            self.sidebar.update_channel_selector(self.preprocessing)
            self.sidebar.update_intslider(self.preprocessing)
            self.sidebar.update_general_plotting_widgets(self.preprocessing)
    else:
        self.sidebar.update_file_list()
        self.sidebar.update_selector()
        self.sidebar.update_channel_selector()
        self.sidebar.update_intslider()
        self.sidebar.update_general_plotting_widgets()

handle_intslider_event 

handle_intslider_event(event)

Handles the intslider event.

This method is responsible for handling the event when a user interacts with the intslider.

Parameters:

Name Type Description Default
event object

The event that triggers the export.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_intslider_event(self, event):
    """
    Handles the intslider event.

    This method is responsible for handling the event when a user interacts with the intslider.

    Args:
        event (object): The event that triggers the export.

    Returns:
        None
    """
    if self.file_paths:
        if (self.sidebar.accordion.int_slider.component.value > self.preprocessing.current_block_idx):
            for _ in range(self.sidebar.accordion.int_slider.component.value - self.preprocessing.current_block_idx):
                self.preprocessing.set_next_data_block()

            self.sidebar.update_color_picker()
            self.sidebar.update_nav_index()
            self.main_view.update_signal(
                self.preprocessing,
                self.signal_process,
                [self.sidebar.accordion.channel_selector_input.component.value,
                self.sidebar.accordion.channel_selector_output.component.value],
                self.sidebar.accordion.toggle_group.stretch,
                [self.sidebar.accordion.color_picker_ch1.component.value,
                self.sidebar.accordion.color_picker_ch2.component.value,
                self.sidebar.accordion.color_picker_result.component.value],
                self.sidebar.accordion.window_selector.component.value,
                self.sidebar.accordion.overlap_selector.component.value,
                self.sidebar.accordion.toggle_group.grid,
                self.sidebar.accordion.toggle_x_axis.x_log,
                self.sidebar.accordion.toggle_y_axis.y_log,
                self.sidebar.accordion.toggle_group.db,
            )
        else:
            self.preprocessing.set_data_block_to_idx(self.sidebar.accordion.int_slider.component.value)
            self.sidebar.update_color_picker()
            self.sidebar.update_nav_index()
            self.main_view.update_signal(
                self.preprocessing,
                self.signal_process,
                [self.sidebar.accordion.channel_selector_input.component.value,
                self.sidebar.accordion.channel_selector_output.component.value],
                self.sidebar.accordion.toggle_group.stretch,
                [self.sidebar.accordion.color_picker_ch1.component.value,
                self.sidebar.accordion.color_picker_ch2.component.value,
                self.sidebar.accordion.color_picker_result.component.value],
                self.sidebar.accordion.window_selector.component.value,
                self.sidebar.accordion.overlap_selector.component.value,
                self.sidebar.accordion.toggle_group.grid,
                self.sidebar.accordion.toggle_x_axis.x_log,
                self.sidebar.accordion.toggle_y_axis.y_log,
                self.sidebar.accordion.toggle_group.db,
            )

handle_method_event 

handle_method_event(event)

Handles the method selection event.

This method is responsible for updating the exporter when a new method is selected.

Parameters:

Name Type Description Default
event object

The event that triggers the method selection.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_method_event(self, event):
    """
    Handles the method selection event.

    This method is responsible for updating the exporter when a new method is selected.

    Args:
        event (object): The event that triggers the method selection.

    Returns:
        None
    """
    self.sidebar.update_exporter(self.sidebar.accordion.method_selector.component.value)

handle_sidebar_event 

handle_sidebar_event(event)

Handles the sidebar event.

This method is responsible for handling the event when a user interacts with the sidebar.

Parameters:

Name Type Description Default
event object

The event that triggers the export.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_sidebar_event(self, event):
    """
    Handles the sidebar event.

    This method is responsible for handling the event when a user interacts with the sidebar.

    Args:
        event (object): The event that triggers the export.

    Returns:
        None
    """
    # Update the main view when the sidebar event is triggered
    if ((
        event.obj == self.sidebar.accordion.color_picker_ch1.component
        or event.obj == self.sidebar.accordion.color_picker_ch2.component
        or event.obj == self.sidebar.accordion.color_picker_result.component
        or event.obj == self.sidebar.accordion.channel_selector_input.component
        or event.obj == self.sidebar.accordion.channel_selector_output.component
        or event.obj == self.sidebar.accordion.method_selector.component
        or event.obj == self.sidebar.accordion.overlap_selector.component
        or event.obj == self.sidebar.accordion.window_selector.component
        or event.obj == self.sidebar.accordion.toggle_group.component
        or event.obj == self.sidebar.accordion.toggle_x_axis.component
        or event.obj == self.sidebar.accordion.toggle_y_axis.component
    )
        and self.file_paths
        and self.sidebar.accordion.channel_selector_input.component.value is not None
        and self.sidebar.accordion.channel_selector_output.component.value is not None):
        # Update the toggle group widgets
        self.sidebar.update_toggle_group()
        # Update the color picker
        self.sidebar.update_color_picker()
        # Update signal
        self.main_view.update_signal(
            self.preprocessing,
            self.signal_process,
            [self.sidebar.accordion.channel_selector_input.component.value,
            self.sidebar.accordion.channel_selector_output.component.value],
            self.sidebar.accordion.toggle_group.stretch,
            [self.sidebar.accordion.color_picker_ch1.component.value,
            self.sidebar.accordion.color_picker_ch2.component.value,
            self.sidebar.accordion.color_picker_result.component.value],
            self.sidebar.accordion.window_selector.component.value,
            self.sidebar.accordion.overlap_selector.component.value,
            self.sidebar.accordion.toggle_group.grid,
            self.sidebar.accordion.toggle_x_axis.x_log,
            self.sidebar.accordion.toggle_y_axis.y_log,
            self.sidebar.accordion.toggle_group.db,

        )

        self.main_view.update_analysis_plot(
                    self.preprocessing,
                    self.signal_process,
                    [self.sidebar.accordion.channel_selector_input.component.value,
                    self.sidebar.accordion.channel_selector_output.component.value],
                    self.sidebar.accordion.toggle_group.stretch,
                    [self.sidebar.accordion.color_picker_ch1.component.value,
                    self.sidebar.accordion.color_picker_ch2.component.value,
                    self.sidebar.accordion.color_picker_result.component.value],
                    self.sidebar.accordion.method_selector.component.value,
                    self.sidebar.accordion.window_selector.component.value,
                    self.sidebar.accordion.overlap_selector.component.value,
                    self.sidebar.accordion.toggle_group.grid,
                    self.sidebar.accordion.toggle_x_axis.x_log,
                    self.sidebar.accordion.toggle_y_axis.y_log,
                    self.sidebar.accordion.toggle_group.db,
                )
    else:
        self.sidebar.update_color_picker()
        self.main_view.update_signal(
            self.preprocessing,
            self.signal_process,
            [],
            self.sidebar.accordion.toggle_group.stretch,
            [self.sidebar.accordion.color_picker_ch1.component.value,
            self.sidebar.accordion.color_picker_ch2.component.value,
            self.sidebar.accordion.color_picker_result.component.value],
            self.sidebar.accordion.window_selector.component.value,
            self.sidebar.accordion.overlap_selector.component.value,
            self.sidebar.accordion.toggle_group.grid,
            self.sidebar.accordion.toggle_x_axis.x_log,
            self.sidebar.accordion.toggle_y_axis.y_log,
            self.sidebar.accordion.toggle_group.db,
        )

        self.main_view.update_analysis_plot(
                    self.preprocessing,
                    self.signal_process,
                    [],
                    self.sidebar.accordion.toggle_group.stretch,
                    [self.sidebar.accordion.color_picker_ch1.component.value,
                    self.sidebar.accordion.color_picker_ch2.component.value,
                    self.sidebar.accordion.color_picker_result.component.value],
                    self.sidebar.accordion.method_selector.component.value,
                    self.sidebar.accordion.window_selector.component.value,
                    self.sidebar.accordion.overlap_selector.component.value,
                    self.sidebar.accordion.toggle_group.grid,
                    self.sidebar.accordion.toggle_x_axis.x_log,
                    self.sidebar.accordion.toggle_y_axis.y_log,
                    self.sidebar.accordion.toggle_group.db,
                )

handle_table_choose_event 

handle_table_choose_event(event)

Handles the table choose event.

This method is responsible for handling the event when a user chooses a table.

Parameters:

Name Type Description Default
event object

The event that triggers the export.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_table_choose_event(self, event):
    """
    Handles the table choose event.

    This method is responsible for handling the event when a user chooses a table.

    Args:
        event (object): The event that triggers the export.

    Returns:
        None
    """
    # Update the main view when the table chooser event is triggered
    # Note, we could also split this into multiple functions
    if event.obj == self.sidebar.accordion.selector.component:
        if self.sidebar.accordion.selector.component.value:
            self.preprocessing.table_key = self.sidebar.accordion.selector.component.value
            self.sidebar.update_channel_selector(self.preprocessing)

handle_update_analysis_event 

handle_update_analysis_event(event)

Handles the update analysis event.

This method is responsible for handling the event when a user updates the analysis.

Parameters:

Name Type Description Default
event object

The event that triggers the export.

 required

Returns:

Type Description

None
Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def handle_update_analysis_event(self, event):
    """
    Handles the update analysis event.

    This method is responsible for handling the event when a user updates the analysis.

    Args:
        event (object): The event that triggers the export.

    Returns:
        None
    """
    if (self.file_paths
        and self.sidebar.accordion.channel_selector_input.component.value is not None
        and self.sidebar.accordion.channel_selector_output.component.value is not None):

        self.main_view.update_signal(
            self.preprocessing,
            self.signal_process,
            [self.sidebar.accordion.channel_selector_input.component.value,
            self.sidebar.accordion.channel_selector_output.component.value],
            self.sidebar.accordion.toggle_group.stretch,
            [self.sidebar.accordion.color_picker_ch1.component.value,
            self.sidebar.accordion.color_picker_ch2.component.value,
            self.sidebar.accordion.color_picker_result.component.value],
            self.sidebar.accordion.window_selector.component.value,
            self.sidebar.accordion.overlap_selector.component.value,
            self.sidebar.accordion.toggle_group.grid,
            self.sidebar.accordion.toggle_x_axis.x_log,
            self.sidebar.accordion.toggle_y_axis.y_log,
            self.sidebar.accordion.toggle_group.db,
        )

        self.main_view.update_analysis_plot(
                    self.preprocessing,
                    self.signal_process,
                    [self.sidebar.accordion.channel_selector_input.component.value,
                    self.sidebar.accordion.channel_selector_output.component.value],
                    self.sidebar.accordion.toggle_group.stretch,
                    [self.sidebar.accordion.color_picker_ch1.component.value,
                    self.sidebar.accordion.color_picker_ch2.component.value,
                    self.sidebar.accordion.color_picker_result.component.value],
                    self.sidebar.accordion.method_selector.component.value,
                    self.sidebar.accordion.window_selector.component.value,
                    self.sidebar.accordion.overlap_selector.component.value,
                    self.sidebar.accordion.toggle_group.grid,
                    self.sidebar.accordion.toggle_x_axis.x_log,
                    self.sidebar.accordion.toggle_y_axis.y_log,
                    self.sidebar.accordion.toggle_group.db,
                )
    else:
        self.main_view.update_signal(
            self.preprocessing,
            self.signal_process,
            [self.sidebar.accordion.channel_selector_input.component.value,
            self.sidebar.accordion.channel_selector_output.component.value],
            self.sidebar.accordion.toggle_group.stretch,
            [self.sidebar.accordion.color_picker_ch1.component.value,
            self.sidebar.accordion.color_picker_ch2.component.value,
            self.sidebar.accordion.color_picker_result.component.value],
            self.sidebar.accordion.window_selector.component.value,
            self.sidebar.accordion.overlap_selector.component.value,
            self.sidebar.accordion.toggle_group.grid,
            self.sidebar.accordion.toggle_x_axis.x_log,
            self.sidebar.accordion.toggle_y_axis.y_log,
            self.sidebar.accordion.toggle_group.db,
        )

        self.main_view.update_analysis_plot(
            self.preprocessing,
            self.signal_process,
            [],
            self.sidebar.accordion.toggle_group.stretch,
            [self.sidebar.accordion.color_picker_ch1.component.value,
            self.sidebar.accordion.color_picker_ch2.component.value,
            self.sidebar.accordion.color_picker_result.component.value],
            self.sidebar.accordion.method_selector.component.value,
            self.sidebar.accordion.window_selector.component.value,
            self.sidebar.accordion.overlap_selector.component.value,
            self.sidebar.accordion.toggle_group.grid,
            self.sidebar.accordion.toggle_x_axis.x_log,
            self.sidebar.accordion.toggle_y_axis.y_log,
            self.sidebar.accordion.toggle_group.db,
        )

servable 

servable()

Makes the application servable.

Source code in src/fft_analysator/gui/controllers/app_controller.py 
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def servable(self):
    """
    Makes the application servable.
    """
    # Serve app layout
    self.template_layout.servable()