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"""
This file is the framework for generating multiple Streamlit applications
through an object oriented framework.
"""
# Import necessary libraries
import streamlit as st
from streamlit_option_menu import option_menu
# Define the multipage class to manage the multiple apps in our program
class MultiPage:
"""Framework for combining multiple streamlit applications."""
def __init__(self) -> None:
"""Constructor class to generate a list which will store all our applications as an instance variable."""
self.pages = []
def add_page(self, title, icon, func) -> None:
"""Class Method to Add pages to the project
Args:
title ([str]): The title of page which we are adding to the list of apps
func: Python function to render this page in Streamlit
"""
self.pages.append(
{
"title": title,
"icon": icon,
"function": func
}
)
def run(self):
# Drodown to select the page to run
st.markdown("""
<style>
section[data-testid="stSidebar"] > div:first-of-type {
background-color: var(--secondary-background-color);
background: var(--secondary-background-color);
width: 250px;
padding: 4rem 0;
box-shadow: -2rem 0px 2rem 2rem rgba(0,0,0,0.16);
}
section[aria-expanded="true"] > div:nth-of-type(2) {
display: none;
}
.main > div:first-of-type {
padding: 1rem 0;
}
</style>
""", unsafe_allow_html=True)
with st.sidebar:
selected = option_menu(None, [page["title"] for page in self.pages],
icons=[page["icon"] for page in self.pages],
menu_icon="cast", default_index=0)
# Run the selected page
for index, item in enumerate(self.pages):
if item["title"] == selected:
self.pages[index]["function"]()
break
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