Toga Layout Builder

The purpose of this project is to create user interfaces easily with a yaml document. This is an unofficial tool for Toga GUI Toolkit.

Install

pip install toga-layout-builder

Use

• Create Toga App in app.py

import toga
from toga_layout import Layout

import myevents
import mystyles

def main():
    layout = Layout()
    layout.events = [myevents]
    layout.styles = [mystyles]
    widgets = layout.load('layout.yaml')
    return toga.App('Example Layout App', 'org.ignaciocabeza.example_layout_app', startup=widgets)

if __name__ == '__main__':
    main().main_loop()

• Create app layout in layout.yaml

main_box:
    type: Box   
    style: ["padding_10","column_dir"]
    widgets:
        - box_row_1:
            type: Box
            style: padding_bottom_5
            widgets:
                - label_info:
                    type: Label
                    style: ['padding_top_5', 'flex1']
                    args: ['Insert your name here:']
                - text_name:
                    type: TextInput
                    style: 'flex1'
        - btn_greetings:
            type: Button
            style: "padding_bottom_5"
            on_press: handle_greetings
            args: ["Greetings"]
        - response_greetings:
            type: Label
            style: flex1
            args: [""]

• Create events file in myevents.py

from toga_layout import Layout, get_widget_by_id

def handle_greetings(Button):
    response_greetings = get_widget_by_id(Button.window, 'response_greetings')
    txt_name = get_widget_by_id(Button.window, 'text_name')
    response_greetings.text = f'Hello {txt_name.value}!'

• Create styles file in mystyles.py

from toga.style.pack import Pack, COLUMN, ROW

padding_10 = Pack(padding=10)
padding_bottom_5 = Pack(padding_bottom=5)
padding_top_5 = Pack(padding_top=5)
column_dir = Pack(direction=COLUMN)
flex1 = Pack(flex=1)

• Run app

python app.py

More examples at: https://github.com/ignaciocabeza/toga-layout-builder/tree/master/example.