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import gradio as gr
import rpy2.robjects as robj
from rpy2.robjects import default_converter
from rpy2.robjects.conversion import localconverter
# define R functions globally
robj.r("""
add <- function(x,y) { return(x + y) }
multiply <- function(x,y) { return(x * y) }
sub <- function(x,y) { return(x - y) }
div <- function(x,y) { return(x / y) }
""")
def arithmetic(num1, num2, operation):
with localconverter(default_converter):
if operation == "Add":
res = robj.r(f"add({num1}, {num2})")
elif operation == "Multiply":
res = robj.r(f"multiply({num1}, {num2})")
elif operation == "Subtract":
res = robj.r(f"sub({num1}, {num2})")
elif operation == "Divide":
res = robj.r(f"div({num1}, {num2})")
return res[0]
custom_css = """
/* Ultra minimal dark theme with only essential styling */
/* Dark background and light text */
body {
background-color: #121212;
color: #ffffff;
}
/* Make inputs visible on dark background */
input, textarea, select {
background-color: #2a2a2a;
color: #ffffff;
border: 1px solid #444;
}
/* Simple gradient button */
button {
background: linear-gradient(135deg, #4568dc, #0f4c81);
color: white;
}
/* Ensure result is visible */
#result, .output-class, .gr-number-output {
color: #ffffff;
font-size: large;
}
/* Hide footer */
footer {
display: none; !important;
}
"""
with gr.Blocks(
title="R-Powered Calculator",
theme=gr.themes.Base(),
css = custom_css
) as app:
gr.HTML(
"""
<h1 style='text-align: center'>
<strong>R-Powered Calculator</strong>
</h1>
"""
)
with gr.Row():
num1 = gr.Number(label="Number 1")
num2 = gr.Number(label="Number 2")
with gr.Column():
operation = gr.Radio(choices=["Add", "Multiply", "Subtract", "Divide"],
value="Add",
label="Choose Arithmetic Operation",
min_width=100,
scale=0.3)
with gr.Row():
submit = gr.Button("Run Operation")
with gr.Column():
gr.HTML(
"""
<h3 style='text-align: center'>
<strong>Arithmetic Operation Result</strong>
</h3>
"""
)
result = gr.Number()
submit.click(arithmetic, inputs=[num1, num2, operation], outputs=[result])
app.launch(server_name="0.0.0.0", server_port=7860)
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