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"""Functions for the layout of the Streamlit app, including the sidebar."""
import base64
import os
from datetime import date
import streamlit as st
from src.config_parameters import params
# Check if app is deployed
def is_app_on_streamlit():
"""Check whether the app is on streamlit or runs locally."""
return "HOSTNAME" in os.environ and os.environ["HOSTNAME"] == "streamlit"
# General layout
def toggle_menu_button():
"""If app is on streamlit, hide menu button."""
if is_app_on_streamlit():
st.markdown(
"""
<style>
#MainMenu {visibility: hidden;}
footer {visibility: hidden;}
</style>
""",
unsafe_allow_html=True,
)
# Home page
def set_home_page_style():
"""Set style home page."""
st.markdown(
"""
<style> p { font-size: %s; } </style>
"""
% params["docs_fontsize"],
unsafe_allow_html=True,
)
# Documentation page
def set_doc_page_style():
"""Set style documentation page."""
st.markdown(
"""
<style> p { font-size: %s; } </style>
"""
% params["docs_fontsize"],
unsafe_allow_html=True,
)
# Tool page
def set_tool_page_style():
"""Set style tool page."""
st.markdown(
"""
<style>
.streamlit-expanderHeader {
font-size: %s;
color: #000053;
}
.stDateInput > label {
font-size: %s;
}
.stSlider > label {
font-size: %s;
}
.stRadio > label {
font-size: %s;
}
.stButton > button {
font-size: %s;
font-weight: %s;
background-color: %s;
}
</style>
"""
% (
params["expander_header_fontsize"],
params["widget_header_fontsize"],
params["widget_header_fontsize"],
params["widget_header_fontsize"],
params["button_text_fontsize"],
params["button_text_fontweight"],
params["button_background_color"],
),
unsafe_allow_html=True,
)
# Sidebar
@st.cache(allow_output_mutation=True)
def get_base64_of_bin_file(png_file):
"""
Get base64 from image file.
Inputs:
png_file (str): image filename
Returns:
str: encoded ASCII file
"""
with open(png_file, "rb") as f:
data = f.read()
return base64.b64encode(data).decode()
def build_markup_for_logo(
png_file,
):
"""
Create full string for navigation bar, including logo and title.
Inputs:
png_file (str): image filename
background_position (str): position logo
image_width (str): width logo
image_height (str): height logo
Returns
str: full string with logo and title for sidebar
"""
binary_string = get_base64_of_bin_file(png_file)
return """
<style>
[data-testid="stSidebarNav"] {
background-image: url("data:image/png;base64,%s");
background-repeat: no-repeat;
padding-top: 50px;
padding-bottom: 10px;
background-position: %s;
background-size: %s %s;
}
[data-testid="stSidebarNav"]::before {
content: "%s";
margin-left: 20px;
margin-top: 20px;
margin-bottom: 20px;
font-size: %s;
font-weight: %s;
position: relative;
text-align: center;
top: 85px;
}
</style>
""" % (
binary_string,
params["MA_logo_background_position"],
params["MA_logo_width"],
"",
params["sidebar_header"],
params["sidebar_header_fontsize"],
params["sidebar_header_fontweight"],
)
def add_logo(png_file):
"""
Add logo to sidebar.
Inputs:
png_file (str): image filename
Returns:
None
"""
logo_markup = build_markup_for_logo(png_file)
# st.sidebar.title("ciao")
st.markdown(
logo_markup,
unsafe_allow_html=True,
)
def add_about():
"""
Add about and contacts to sidebar.
Inputs:
None
Returns:
None
"""
today = date.today().strftime("%B %d, %Y")
# About textbox
st.sidebar.markdown("## About")
st.sidebar.markdown(
"""
<div class='warning' style='
background-color: %s;
margin: 0px;
padding: 1em;'
'>
<p style='
margin-left:1em;
margin: 0px;
font-size: 1rem;
margin-bottom: 1em;
'>
Last update: %s
</p>
<p style='
margin-left:1em;
font-size: 1rem;
margin: 0px
'>
<a href='%s'>
Wiki reference page</a><br>
<a href='%s'>
GitHub repository</a><br>
<a href='%s'>
Data Science Lab</a>
</p>
</div>
"""
% (
params["about_box_background_color"],
today,
params["url_project_wiki"],
params["url_github_repo"],
params["url_data_science_wiki"],
),
unsafe_allow_html=True,
)
# Contacts textbox
st.sidebar.markdown(" ")
st.sidebar.markdown("## Contacts")
# Add data scientists and emails
contacts_text = ""
for ds, email in params["data_scientists"].items():
contacts_text += ds + (
"<span style='float:right; margin-right: 3px;'>"
"<a href='mailto:%s'>%s</a></span><br>" % (email, email)
)
# Add text box
st.sidebar.markdown(
"""
<div class='warning' style='
background-color: %s;
margin: 0px;
padding: 1em;'
'>
<p style='
margin-left:1em;
font-size: 1rem;
margin: 0px
'>
%s
</p>
</div>
"""
% (params["about_box_background_color"], contacts_text),
unsafe_allow_html=True,
)
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