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Kivy Design

Screenshot of final-main.py

old_main.py

This class was developed as a test system for trying out each of the UI elements required for the Pumpy UI

Functions

def forwards(instance)
def backwards(instance)
def release(instance)

Test functions to ensure that binding functions to elements works as intended

Class

def PumpTestApp(App)

Main class to encapsulate all functionality and elements of the application. Subclasses the App object from the Kivy library: kivy.app.App

Methods

def build(self)

Overridden method inside of PumpTestApp that sets up 3 layouts:

  • main_layout
  • middle_layout
  • middle_left_layout

Labels and buttons are setup inside of these layouts. on_press and on_release variables for each button are set to the functions defined above. This method then returns main_layout which is executed in the main function of the program.

Main Method

if __name__ == "__main__"
    PumpTestApp().run()

The run() method of the App class will take the return value of the build() method and run the layout through its graphics processing engine in order to generate the GUI we've described.

final-main.py

Built to try a different layout style and build in the necessary features for the pump to be operated

Functions

def forwards(instance)
def backwards(instance)
def release(instance)

Test functions to be bound to buttons on the GUI

Class

def PumpTestApp(App)

Main class that subclasses App and contains the methods for running the UI

Variables

size_input = ObjectProperty()
time_input = ObjectProperty()
ms_button = ObjectProperty()

Objects to store widgets (UI elements) so we can call on them for the given user input or choices for use by Pumpy.

Methods

def infuse(self, instance)

Takes the given values for syringe size, time and microstep and displays them to the screen - these values can easily be sent to Pumpy for infusion

def show_spinner_value(self, spinner, text)

Method for getting the value of a given spinner - a spinner is a clickable widget that allows the user to input a number without typing

def build(self)

Sets up 4 layouts along with inputs for syringe size, microstepping and time input. Then buttons are set up for infusion, continuous withdrawal and continuous infusion. The functions and methods above are bound to these buttons and the UI returns the layout main_layout

Main Method

if __name__ == "__main__":
    PumpTestApp().run()

The run() method of the App class will take the return value of the build() method and run the layout through its graphics processing engine in order to generate the GUI we've described.