user_interface - dialog

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The user_interface package provides various functions for common use cases with message boxes.

Classes

Button

Static variables

Variable	Description
Button.YES	Text constant for "Yes"
Button.NO	Text constant for "No"
Button.OK	Text constant for "OK"
Button.BACK	Text constant for "Back"
Button.PREVIOUS	Text constant for "Previous"
Button.NEXT	Text constant for "Next"
Button.SELECT	Text constant for "Select"
Button.CANCEL	Text constant for "Cancel"

ButtonList

Static variables

Variable	Description
ButtonList.YES_NO	Constant for getting a =["Yes", "No"]= button list from ButtonList.get_button_text_from_value()
ButtonList.OK_BACK	Constant for getting a =["Ok", "Back"]= button list from ButtonList.get_button_text_from_value()

Classmethods

Function	Parameters	Return Value	Description
ButtonList.get_button_text_from_value`(cls, value)`	value: One of the values defined in the static variables of this class	A list or `None`	Retrieves a list populated with text constants for use in message boxes

Functions

Function	Parameters	Return Value	Description
ask_for_confirmation_via_dialog`(dialog_message_id)`	dialog_message_id: MSG	`True` or `False`	Displays a dialog message and checks whether the reply is positive
ask_user_for_confirmation`(message_text, button_enum, ole_id=OLE_QUESTION_MARK)`	message_text: The text that should be displayed button_enum: One of the static variables of the `ButtonList` class ole_id: OLE	`True` or `False`	Displays a message and checks whether the reply is positive.
ask_user_for_input_via_dialog`(dialog_message_id, verification_function=None)`	dialog_message_id: MSG verification_function: A callable that takes one argument and returns `True` or `False`	User input	Asks the user for input. The dialog message should be configured to have 1 input field. The `verification_function` should be a callable that gets called with the user input and returns `True` / `False` depending on whether the input is valid. Will loop the question until a valid value is found, or return `None` when the user cancels
ask_user_to_select_from_list`(possible_values, heading='', transform_value_to_text=None, _selected_index=0)`	possible_values: An iterable of values heading: Text transform_value_to_text: A callable that takes one argument and returns a string representation _selected_index: Internal argument	An object from the iterable of values or None	Displays a list of objects in a message box and lets the user choose one of the elements.
show_custom_dialog_message`(dialog_message_id, text, extend_original_text=False)`	dialog_message_id: The dialog message to replicate text: The text that should be displayed extend_original_text: `True` / `False` depending on whether you want to replace the original text or extend it		Displays a dialog message with a custom text.
ask_user_to_select_from_objects`(message, possible_objects, title='', transform_value_to_textstr, ole_id=None)`	message: message that you want to show possible_objects: list of possible replies title: title of the dialog transform_value_to_text: A function that takes a single argument (an object from the list of values) and returns a proper string ole_id: ole_id that you want to have		Presents the user with a dialog where he/she can choose from multiple replies.

Examples

Utilizing ask_user_for_confirmation

PY

from ppms.user_interface import ask_user_for_confirmation, ButtonList

message_text = 'Should something be done?'
if ask_user_for_confirmation(message_text=message_text, button_enum=ButtonList.YES_NO)
    # Do something...

Utilizing ask_for_confirmation_via_dialog

PY

from ppms.user_interface import ask_for_confirmation_via_dialog

if ask_for_confirmation_via_dialog('1110'):
    # Do something...

Select a logfile and display the last 1000 characters

The selection box will look like this:

PY

import os

from ppms.user_interface import ask_user_to_select_from_list


def get_all_logfiles():
    return [logfile for logfile in os.listdir('log') if logfile.endswith('.log')]
    
def ending_stripper(logfile):
    return logfile.rstrip('.log')
    
    
logfiles = get_all_logfiles()
selected_logfile = ask_user_to_select_from_list(possible_values=logfiles, heading='Please select a logfile:', transform_value_to_text=ending_stripper)

if selected_logfile is not None:
    logfile_path = os.path.join('log', selected_logfile)

    with open(logfile_path, encoding='utf-8') as f:
        content = f.read()[-1000:]
        
        ppms.ui_message_box(content)

Asking the user for a valid port number

PY

from ppms.user_interface import ask_user_for_input_via_dialog

# A port must be a valid integer
def _port_checker(port):
    try:
        int(port)
    except ValueError:
        return False

    return True
    
port = ask_user_for_input_via_dialog(dialog_message_id='1242', verification_function=_port_checker)
if port is not None:
    # Do something with the port number