import argparse
import datetime
import json
import os
import time
import gradio as gr
import requests
from starvector.serve.conversation import default_conversation
from starvector.serve.constants import LOGDIR, CLIP_QUERY_LENGTH
from starvector.serve.util import (build_logger, server_error_msg)
logger = build_logger("gradio_web_server", "gradio_web_server.log")
headers = {"User-Agent": "StarVector Client"}
no_change_btn = gr.Button.update()
enable_btn = gr.Button.update(interactive=True)
disable_btn = gr.Button.update(interactive=False)
priority = {
"starvector-1b": "aaaaaaa",
}
def get_conv_log_filename():
t = datetime.datetime.now()
name = os.path.join(LOGDIR, f"{t.year}-{t.month:02d}-{t.day:02d}-conv.json")
return name
def get_model_list():
ret = requests.post(args.controller_url + "/refresh_all_workers")
assert ret.status_code == 200
ret = requests.post(args.controller_url + "/list_models")
models = ret.json()["models"]
models.sort(key=lambda x: priority.get(x, x))
logger.info(f"Models: {models}")
return models
def load_demo(url_params, request: gr.Request):
logger.info(f"load_demo. ip: {request.client.host}. params: {url_params}")
dropdown_update = gr.Dropdown.update(visible=True)
if "model" in url_params:
model = url_params["model"]
if model in models:
dropdown_update = gr.Dropdown.update(
value=model, visible=True)
state = default_conversation.copy()
return state, dropdown_update
mapping_model_task = {
'Image2SVG': 'im2svg',
'Text2SVG': 'text2svg'
}
def get_models_dropdown_from_task(task):
models = get_model_list()
models = [model for model in models if mapping_model_task[task] in model]
dropdown_update = gr.Dropdown.update(
choices=models,
value=models[0] if len(models) > 0 else ""
)
return dropdown_update
def load_demo_refresh_model_list(task, request: gr.Request):
logger.info(f"load_demo. ip: {request.client.host}")
dropdown_update = get_models_dropdown_from_task(task)
state = default_conversation.copy()
return state, dropdown_update
def vote_last_response(state, vote_type, model_selector, request: gr.Request):
with open(get_conv_log_filename(), "a") as fout:
data = {
"tstamp": round(time.time(), 4),
"type": vote_type,
"model": model_selector,
"state": state.dict(),
"ip": request.client.host,
}
fout.write(json.dumps(data) + "\n")
def upvote_last_response(state, model_selector, request: gr.Request):
logger.info(f"upvote. ip: {request.client.host}")
vote_last_response(state, "upvote", model_selector, request)
return ("",) + (disable_btn,) * 7
def downvote_last_response(state, model_selector, request: gr.Request):
logger.info(f"downvote. ip: {request.client.host}")
vote_last_response(state, "downvote", model_selector, request)
return ("",) + (disable_btn,) * 7
def flag_last_response(state, model_selector, request: gr.Request):
logger.info(f"flag. ip: {request.client.host}")
vote_last_response(state, "flag", model_selector, request)
return ("",) + (disable_btn,) * 7
def regenerate(state, image_process_mode, request: gr.Request):
logger.info(f"regenerate. ip: {request.client.host}")
state.messages[-1][-1] = None
prev_human_msg = state.messages[-2]
if type(prev_human_msg[1]) in (tuple, list):
prev_human_msg[1] = (prev_human_msg[1][:2], image_process_mode)
state.skip_next = False
return (state, None, None, None) + (disable_btn,) * 7
def clear_history(request: gr.Request):
logger.info(f"clear_history. ip: {request.client.host}")
state = default_conversation.copy()
return (state, None, None) + (disable_btn,) * 7
def send_data(state, image, image_process_mode, text_caption, task, request: gr.Request):
logger.info(f"send_data. ip: {request.client.host}.")
if task == 'Image2SVG':
if image is None:
state.skip_next = True
return (state, None, None, image) + (no_change_btn,) * 7
# Reset the conversation state when a new image is uploaded
state = default_conversation.copy()
if image is not None:
image_message = (image, image_process_mode)
state.append_message(state.roles[0], image_message)
state.append_message(state.roles[1], "▌")
state.skip_next = False
msg = state.to_gradio_svg_code()[0][1]
return (state, msg, state.to_gradio_svg_render(), image) + (no_change_btn,) * 7
else:
if text_caption is None:
state.skip_next = True
return (state, None, None, image) + (no_change_btn,) * 7
# Reset the conversation state for new text inputs too
state = default_conversation.copy()
state.append_message(state.roles[0], text_caption)
state.append_message(state.roles[1], "▌")
state.skip_next = False
msg = state.to_gradio_svg_code()[0][1]
return (state, msg, state.to_gradio_svg_render(), image) + (no_change_btn,) * 7
def download_files(state, request: gr.Request):
logger.info(f"download_files. ip: {request.client.host}")
svg_str, image = state.download_files()
# TODO: Figure out how to download the SVG in the users browser, idk how to do it now
def update_task(task):
dropdown_update = get_models_dropdown_from_task(task)
if task == "Text2SVG":
return 1.0, 0.9, 0.95, dropdown_update
else:
return 0.6, 0.9, 0.95, dropdown_update
def stop_sampling(state, image, request: gr.Request):
logger.info(f"stop_sampling. ip: {request.client.host}")
state.stop_sampling = True
return (state, None, None, image) + (disable_btn,) * 7
def http_bot(state, task_selector, text_caption, model_selector, num_beams, temperature, len_penalty, top_p, max_new_tokens, request: gr.Request):
logger.info(f"http_bot. ip: {request.client.host}")
start_tstamp = time.time()
model_name = model_selector
if state.skip_next:
# This generate call is skipped due to invalid inputs
yield (state, None, None) + (no_change_btn,) * 7
return
# Query worker address
controller_url = args.controller_url
ret = requests.post(controller_url + "/get_worker_address",
json={"model": model_name})
worker_addr = ret.json()["address"]
logger.info(f"model_name: {model_name}, worker_addr: {worker_addr}")
# No available worker
if worker_addr == "":
state.messages[-1][-1] = server_error_msg
yield (state, None, None, disable_btn, disable_btn, disable_btn, enable_btn, enable_btn, disable_btn, disable_btn)
return
# Construct prompt
if task_selector == "Image2SVG":
prompt = state.get_image_prompt()
else:
prompt = text_caption
# Make requests
pload = {
"model": model_name,
"prompt": prompt,
"num_beams": int(num_beams),
"temperature": float(temperature),
"len_penalty": float(len_penalty),
"top_p": float(top_p),
"max_new_tokens": min(int(max_new_tokens), 8192-CLIP_QUERY_LENGTH),
}
logger.info(f"==== request ====\n{pload}")
pload['images'] = state.get_images()
state.messages[-1][-1] = "▌"
yield (state, state.messages[-1][-1], state.to_gradio_svg_render()) + (disable_btn, disable_btn, disable_btn, disable_btn, disable_btn, enable_btn, enable_btn)
try:
# Stream output
if state.stop_sampling:
state.messages[1][-1] = "▌"
yield (state, state.messages[-1][-1], state.to_gradio_svg_render()) + (disable_btn, disable_btn, disable_btn, enable_btn, enable_btn, disable_btn, enable_btn)
return
response = requests.post(worker_addr + "/worker_generate_stream",
headers=headers, json=pload, stream=True, timeout=10)
for chunk in response.iter_lines(decode_unicode=False, delimiter=b"\0"):
if chunk:
data = json.loads(chunk.decode())
if data["error_code"] == 0:
# output = data["text"].strip().replace('<', '<').replace('>', '>') # trick to avoid the SVG getting rendered
output = data["text"].strip()
state.messages[-1][-1] = output + "▌"
st = state.to_gradio_svg_code()
# Explicitly set the string value without HTML escaping
yield (state, st[-1][1], state.to_gradio_svg_render()) + (disable_btn, disable_btn, disable_btn, enable_btn, enable_btn, enable_btn, enable_btn)
else:
output = data["text"] + f" (error_code: {data['error_code']})"
state.messages[-1][-1] = output
st = state.to_gradio_svg_code()
yield (state, st[-1][1], state.to_gradio_svg_render()) + (disable_btn, disable_btn, disable_btn, enable_btn, enable_btn, disable_btn, disable_btn)
return
time.sleep(0.01)
except requests.exceptions.RequestException as e:
state.messages[-1][-1] = server_error_msg
yield (state, None, None) + (disable_btn, disable_btn, disable_btn, enable_btn, enable_btn, disable_btn, disable_btn)
return
yield (state, state.messages[-1][-1], state.to_gradio_svg_render()) + (enable_btn,) * 7
finish_tstamp = time.time()
logger.info(f"{output}")
with open(get_conv_log_filename(), "a") as fout:
data = {
"tstamp": round(finish_tstamp, 4),
"type": "chat",
"model": model_name,
"start": round(start_tstamp, 4),
"finish": round(finish_tstamp, 4),
"svg": state.messages[-1][-1],
"ip": request.client.host,
}
fout.write(json.dumps(data) + "\n")
# Fix: Replace 'btn_list' with (enable_btn,) * 7
return (state, state.messages[-1][-1], state.to_gradio_svg_render()) + (enable_btn,) * 7
title_markdown = ("""
# 💫 StarVector: Generating Scalable Vector Graphics Code from Images and Text
""")
sub_title_markdown = ("""**How does it work?** Select the task you want to perform, and the model will be automatically set. For **Text2SVG**, introduce a prompt in Text Caption. For **Image2SVG**, select an image and vectorize it.
**Limitations**: The current model works on vector-like images like icons and or vector-like designs. Images with low resolution may not be vectorized well.""")
tos_markdown = ("""
### Terms of use
By using this service, users are required to agree to the following terms:
The service is a research preview intended for non-commercial use only. It only provides limited safety measures and may generate offensive content. It must not be used for any illegal, harmful, violent, racist, or sexual purposes. The service may collect user dialogue data for future research.
Please click the "Flag" button if you get any inappropriate answer! We will collect those to keep improving our moderator.
For an optimal experience, please use desktop computers for this demo, as mobile devices may compromise its quality.
""")
learn_more_markdown = ("""
### License
The service is a research preview intended for non-commercial use only. Please contact us if you find any potential violation.
""")
block_css = """
#buttons button {
min-width: min(120px,100%);
}
.gradio-container{
max-width: 1200px!important
}
.ͼ1 .cm-content {
white-space: unset !important;
flex-shrink: unset !important;
}
.ͼ2p .cm-scroller {
max-height: 160px;
overflow-y: auto !important;
overflow-x: auto !important;
}
#svg_code .cm-editor {
height: 115px;
overflow: hidden;
}
#svg_code .cm-scroller {
overflow: auto !important;
}
/* New styles to make svg code textbox smaller but still readable */
#svg_code textarea {
height: 115px !important;
}
#svg_render{
padding: 20px !important;
}
#submit_btn{
max-height: 40px;
}
.selector{
max-height: 100px;
}
h1{display: flex;align-items: center;justify-content: center;gap: .25em}
*{transition: width 0.5s ease, flex-grow 0.5s ease}
/* Custom SVG code display area */
#custom_svg_code {
height: 100px;
overflow: auto;
border: 1px solid #ccc;
padding: 10px;
background-color: #f5f5f5;
font-family: monospace;
white-space: pre;
font-size: 14px;
line-height: 1.4;
border-radius: 4px;
}
/* Ensure the content is properly displayed */
#custom_svg_code code {
display: block;
overflow-x: auto;
}
"""
# Create a smarter version of the JavaScript for auto-scrolling
code_scroll_js = """
console.log('SVG Auto-scroll script loaded');
// Track if user has manually scrolled up
let userHasScrolledUp = false;
let lastKnownScrollHeight = 0;
let lastKnownScrollTop = 0;
function setupAutoScroll() {
// Find the SVG code textbox
const svgCodeElements = document.querySelectorAll('#svg_code textarea, #svg_code .cm-content');
console.log('SVG code elements found:', svgCodeElements.length);
// Add scroll event listeners to detect manual scrolling
svgCodeElements.forEach(el => {
if (el) {
el.addEventListener('scroll', () => {
const isAtBottom = Math.abs((el.scrollHeight - el.scrollTop - el.clientHeight)) < 30;
// If user scrolls up, stop auto-scrolling
if (!isAtBottom && lastKnownScrollTop > el.scrollTop) {
console.log('User scrolled up, pausing auto-scroll');
userHasScrolledUp = true;
}
// If user scrolls to bottom, resume auto-scrolling
if (isAtBottom) {
console.log('User scrolled to bottom, resuming auto-scroll');
userHasScrolledUp = false;
}
lastKnownScrollTop = el.scrollTop;
lastKnownScrollHeight = el.scrollHeight;
});
}
});
// Set up an interval to scroll to bottom only if user hasn't scrolled up
setInterval(() => {
svgCodeElements.forEach(el => {
if (el && el.scrollHeight > 0) {
// Only auto-scroll if content has changed or user hasn't scrolled up
if (!userHasScrolledUp || lastKnownScrollHeight !== el.scrollHeight) {
console.log('Auto-scrolling, scrollHeight:', el.scrollHeight);
el.scrollTop = el.scrollHeight;
lastKnownScrollHeight = el.scrollHeight;
lastKnownScrollTop = el.scrollTop;
}
}
});
}, 500);
console.log('Smart auto-scroll setup complete');
}
// Also observe for content changes to handle new content being added
function observeContentChanges() {
const svgCodeContainer = document.getElementById('svg_code');
if (svgCodeContainer) {
const observer = new MutationObserver((mutations) => {
// If new content is added and user hasn't scrolled up, scroll to bottom
if (!userHasScrolledUp) {
const svgCodeElements = document.querySelectorAll('#svg_code textarea, #svg_code .cm-content');
svgCodeElements.forEach(el => {
if (el && el.scrollHeight > 0) {
el.scrollTop = el.scrollHeight;
}
});
}
});
observer.observe(svgCodeContainer, {
childList: true,
subtree: true,
characterData: true
});
}
}
// Try to run immediately
setupAutoScroll();
observeContentChanges();
// Also try when DOM is fully loaded
document.addEventListener('DOMContentLoaded', () => {
setupAutoScroll();
observeContentChanges();
});
// And on window load
window.addEventListener('load', () => {
setupAutoScroll();
observeContentChanges();
});
"""
def build_demo(embed_mode):
svg_render = gr.Image(label="Rendered SVG", elem_id='svg_render', height=300)
# Use a Textbox instead of Code component
svg_code = gr.Textbox(
label="SVG Code",
elem_id="svg_code",
lines=9,
value="",
max_lines=9,
show_copy_button=True,
)
with gr.Blocks(
title="StarVector",
theme=gr.themes.Default(),
css=block_css,
head=f"" # Use head parameter instead of HTML component
) as demo:
# Add a dummy component that we'll use to trigger our JavaScript
dummy = gr.Number(value=0, visible=False)
state = gr.State()
if not embed_mode:
gr.Markdown(title_markdown)
gr.Markdown(sub_title_markdown)
with gr.Row():
with gr.Column(scale=4):
task_selector = gr.Dropdown(
choices=["Image2SVG", "Text2SVG"],
value="Image2SVG",
label="Task",
interactive=True,
show_label=True,
container=True,
elem_id="task_selector",
elem_classes=["selector"],
)
model_selector = gr.Dropdown(
choices=models,
value=models[0] if len(models) > 0 else "",
label="Model",
interactive=True,
show_label=True,
container=True,
elem_classes=["selector"],
)
imagebox = gr.Image(type="pil", visible=True, elem_id="imagebox")
# Move the submit button here - right after the imagebox
submit_btn = gr.Button(value="Send", variant="primary", elem_id="submit_btn", interactive=True)
image_process_mode = gr.Radio(
["Resize", "Pad", "Default"],
value="Pad",
label="Preprocess for non-square image", visible=False)
# Text input
text_caption = gr.Textbox(label="Text Caption", visible=True, value="The icon of a yellow star", elem_id="text_caption")
cur_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
gr.Examples(examples=[
[f"{cur_dir}/examples/sample-4.png"],
[f"{cur_dir}/examples/sample-7.png"],
[f"{cur_dir}/examples/sample-16.png"],
[f"{cur_dir}/examples/sample-17.png"],
[f"{cur_dir}/examples/sample-18.png"],
[f"{cur_dir}/examples/sample-0.png"],
[f"{cur_dir}/examples/sample-1.png"],
[f"{cur_dir}/examples/sample-6.png"],
], inputs=[imagebox], elem_id="examples")
# Remove the submit button from here since we moved it above
with gr.Accordion("Parameters", open=False):
num_beams = gr.Slider(minimum=1, maximum=10, value=1, step=1, interactive=True, label="Num Beams", visible=False,)
temperature = gr.Slider(minimum=0.0, maximum=2.0, value=0.2, step=0.05, interactive=True, label="Temperature",)
len_penalty = gr.Slider(minimum=0.0, maximum=2.0, value=1.0, step=0.05, interactive=True, label="Length Penalty",)
top_p = gr.Slider(minimum=0.0, maximum=1.0, value=0.95, step=0.05, interactive=True, label="Top P",)
max_output_tokens = gr.Slider(minimum=0, maximum=8192, value=8192, step=64, interactive=True, label="Max output tokens",)
with gr.Column(scale=9):
with gr.Row():
svg_code.render()
with gr.Row():
svg_render.render()
with gr.Row(elem_id="buttons") as button_row:
upvote_btn = gr.Button(value="👍 Upvote", interactive=False)
downvote_btn = gr.Button(value="👎 Downvote", interactive=False)
flag_btn = gr.Button(value="⚠️ Flag", interactive=False)
stop_btn = gr.Button(value="⏹️ Stop Generation", interactive=False, visible=False)
regenerate_btn = gr.Button(value="🔄 Regenerate", interactive=False, visible=False)
clear_btn = gr.Button(value="🗑️ Clear", interactive=False)
download_btn = gr.Button(value="Download SVG", interactive=False, visible=False)
if not embed_mode:
gr.Markdown(tos_markdown)
gr.Markdown(learn_more_markdown)
url_params = gr.JSON(visible=False)
# Register listeners
btn_list = [upvote_btn, downvote_btn, flag_btn, regenerate_btn, clear_btn, stop_btn, download_btn]
upvote_btn.click(
upvote_last_response,
[state, model_selector],
[upvote_btn, downvote_btn, flag_btn],
queue=False
)
downvote_btn.click(
downvote_last_response,
[state, model_selector],
[upvote_btn, downvote_btn, flag_btn],
queue=False
)
flag_btn.click(
flag_last_response,
[state, model_selector],
[upvote_btn, downvote_btn, flag_btn],
queue=False
)
regenerate_btn.click(
regenerate,
[state, image_process_mode],
[state, svg_code, svg_render, imagebox] + btn_list,
queue=False
).then(
http_bot,
[state, task_selector, text_caption, model_selector, num_beams, temperature, len_penalty, top_p, max_output_tokens],
[state, svg_code, svg_render] + btn_list
)
submit_btn.click(
send_data,
[state, imagebox, image_process_mode, text_caption, task_selector],
[state, svg_code, svg_render, imagebox] + btn_list,
queue=False
).then(
http_bot,
[state, task_selector, text_caption, model_selector, num_beams, temperature, len_penalty, top_p, max_output_tokens],
[state, svg_code, svg_render] + btn_list
)
clear_btn.click(
clear_history,
None,
[state, svg_code, svg_render] + btn_list,
queue=False
)
stop_btn.click(
stop_sampling,
[state, imagebox],
[state, imagebox] + btn_list,
queue=False
).then(
clear_history,
None,
[state, svg_code, svg_render] + btn_list,
queue=False
)
download_btn.click(
download_files,
[state],
None,
queue=False
)
task_selector.change(
update_task,
inputs=[task_selector],
outputs=[len_penalty, temperature, top_p, model_selector],
queue=False,
_js="""
function(task) {
var imageBoxElement = document.getElementById("imagebox");
var textCaptionElement = document.getElementById("text_caption");
var examplesElement = document.getElementById("examples");
if (task === "Text2SVG") {
imageBoxElement.style.display = "none";
textCaptionElement.style.display = "block";
examplesElement.style.display = "none";
} else if (task === "Image2SVG") {
imageBoxElement.style.display = "block";
textCaptionElement.style.display = "none";
examplesElement.style.display = "block";
}
return task;
}
"""
)
if args.model_list_mode == "once":
demo.load(
load_demo,
[url_params, task_selector],
[state, model_selector],
_js="""
function() {
const params = new URLSearchParams(window.location.search);
url_params = Object.fromEntries(params);
console.log(url_params);
return url_params;
}
""",
queue=False
)
elif args.model_list_mode == "reload":
demo.load(
load_demo_refresh_model_list,
[task_selector],
[state, model_selector],
_js="""
function(task) {
var textCaptionElement = document.getElementById("text_caption");
textCaptionElement.style.display = "none";
return task;
}
""",
queue=False,
)
else:
raise ValueError(f"Unknown model list mode: {args.model_list_mode}")
# Trigger our JavaScript whenever the page loads
demo.load(lambda: 0, outputs=dummy, _js=f"() => {{ {code_scroll_js}; return 0; }}")
return demo
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("--host", type=str, default="0.0.0.0")
parser.add_argument("--port", type=int)
parser.add_argument("--controller-url", type=str, default="http://localhost:21001")
parser.add_argument("--concurrency-count", type=int, default=10)
parser.add_argument("--model-list-mode", type=str, default="once",
choices=["once", "reload"])
parser.add_argument("--share", action="store_true")
parser.add_argument("--moderate", action="store_true")
parser.add_argument("--embed", action="store_true")
args = parser.parse_args()
logger.info(f"args: {args}")
models = get_model_list()
logger.info(args)
demo = build_demo(args.embed)
demo.queue(
concurrency_count=args.concurrency_count,
api_open=False
).launch(
server_name=args.host,
server_port=args.port,
share=args.share
)