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import sys
import json
import threading
import queue
import subprocess
import tkinter as tk
from pathlib import Path
from PIL import Image, ImageDraw, ImageFont, ImageTk
from pypdf import PdfReader
# --- Configuration & Globals ---
padding = 60 # White margin to the right
image_queue = queue.Queue(maxsize=5) # Buffer a few images ahead
try:
font = ImageFont.truetype("DejaVuSans.ttf", size=30)
except OSError:
font = ImageFont.load_default()
# --- Processing Logic (Worker Thread) ---
def page_number(b, nb_pages):
column_width = 1000 // nb_pages
center_x = (b[1] + b[3]) // 2
return center_x // column_width
def prepare_image(image_path: str, bounding_boxes, all_labels, nb_pages):
"""
Draws boxes on the image and returns the PIL Image object.
Does NOT display it.
"""
im = Image.open(image_path)
# Ensure image is loaded so we can pass it between threads safely
im.load()
width, height = im.size
# Add white padding to the right
new_im = Image.new(im.mode, (width + padding, height), "white")
new_im.paste(im, (0, 0))
draw = ImageDraw.Draw(new_im)
bounding_boxes.sort(key=lambda b: (page_number(b["box_2d"], nb_pages), b["box_2d"][0]))
last_label_index = -1
for bbox in bounding_boxes:
raw_y_min = int(bbox["box_2d"][0] * height / 1000)
raw_x_min = int(bbox["box_2d"][1] * width / 1000)
raw_y_max = int(bbox["box_2d"][2] * height / 1000)
raw_x_max = int(bbox["box_2d"][3] * width / 1000)
abs_y_min = max(0, raw_y_min - 10)
abs_x_min = max(0, raw_x_min - 10)
abs_y_max = min(height, raw_y_max + 10)
abs_x_max = min(width, raw_x_max + 10)
color = "black"
label = bbox.get("label")
if label and label in all_labels:
current_index = all_labels.index(label)
if current_index < last_label_index:
color = "red"
last_label_index = current_index
draw.rectangle(
((abs_x_min, abs_y_min), (abs_x_max, abs_y_max)),
outline=color,
width=4,
)
if label:
# draw.text((abs_x_min + 8, abs_y_min + 6), label, fill=color, font=font)
if abs_y_min > 80:
draw.text((abs_x_min + 8, abs_y_min - 30), label, fill=color, font=font)
else:
draw.text((abs_x_min + 8, abs_y_max + 6), label, fill=color, font=font)
return new_im
def worker_thread(base_dir, files_to_process, all_labels):
"""
Iterates through files, processes them, and puts them in the queue.
"""
for img_path in files_to_process:
json_path = base_dir / f"{img_path.stem}.json"
pdf_path = base_dir / f"{img_path.stem}.pdf"
nb_pages = 1
if pdf_path.exists():
try:
nb_pages = len(PdfReader(pdf_path).pages)
except Exception:
pass
if json_path.exists():
try:
with open(json_path, 'r') as f:
json_result = json.load(f)
bb_list = json_result.get("list", [])
print(f"Processing {img_path.name}...")
# Draw boxes
pil_image = prepare_image(str(img_path), bb_list, all_labels, nb_pages)
# Block if queue is full (waiting for user to view)
image_queue.put((pil_image, json_path))
except Exception as e:
print(f"Error processing {img_path.name}: {e}")
# Sentinel to indicate finished
image_queue.put((None, None))
# --- GUI Logic (Main Thread) ---
class ImageViewer:
def __init__(self, root, base_dir):
self.root = root
self.base_dir = base_dir
self.root.title("Bounding Box Viewer")
# UI Elements
self.label = tk.Label(root, text="Waiting for images...")
self.label.pack(expand=True, fill="both")
# State
self.current_image = None
self.current_json_path = None
self.is_viewing = False
self.scale_factor = 1.0 # To track resizing
self.orig_size = (1, 1) # To track original dimensions
# Input Bindings
self.root.bind('<Return>', self.on_enter)
self.root.bind('e', self.on_edit)
self.root.bind('o', self.on_open_pdf) # <--- 3. Add Key Binding
self.root.bind('<Escape>', lambda e: self.root.quit())
self.label.bind('<Button-1>', self.on_click) # Bind left mouse click
# Start polling queue
self.poll_queue()
def poll_queue(self):
if not self.is_viewing:
try:
pil_image, json_path = image_queue.get_nowait()
if pil_image is None:
print("All images processed.")
self.root.quit() # Stop the program
return
self.display_image(pil_image, json_path)
except queue.Empty:
pass
self.root.after(100, self.poll_queue)
def on_open_pdf(self, event):
if self.is_viewing and self.current_json_path:
# Replace .json extension with .pdf
pdf_path = self.current_json_path.with_suffix(".pdf")
print(f"Opening {pdf_path}")
# Use subprocess to run xdg-open without blocking
subprocess.Popen(['xdg-open', str(pdf_path)])
def display_image(self, pil_image, json_path):
self.orig_size = pil_image.size
self.scale_factor = 1.0
# Resize if too large for screen
screen_h = self.root.winfo_screenheight() - 100
if pil_image.height > screen_h:
self.scale_factor = screen_h / pil_image.height
pil_image = pil_image.resize((int(pil_image.width * self.scale_factor),
int(pil_image.height * self.scale_factor)))
self.tk_image = ImageTk.PhotoImage(pil_image)
self.label.config(image=self.tk_image, text="")
self.current_json_path = json_path
self.is_viewing = True
self.root.lift()
def on_enter(self, event):
if self.is_viewing:
print("Next...")
self.is_viewing = False
self.label.config(image="", text="Loading next...")
def on_edit(self, event):
if self.is_viewing and self.current_json_path:
print(f"Opening {self.current_json_path}")
subprocess.Popen(['xdg-open', str(self.current_json_path)])
def on_click(self, event):
if not self.is_viewing: return
# Map click to original image coordinates
x = int(event.x / self.scale_factor)
y = int(event.y / self.scale_factor)
w, h = self.orig_size
# Create 10px box (5px radius)
# Coordinate format: [y_min, x_min, y_max, x_max] (0-1000 scale)
box = [
int(max(0, y - 5) / h * 1000),
int(max(0, x - 5) / (w- padding) * 1000),
int(min(h, y + 5) / h * 1000),
int(min(w, x + 5) / (w - padding) * 1000),
]
box_str = "{ \"box_2d\": " + str(box) + ", \"label\": \"\" },"
print(f"Copied box at ({x},{y}): {box_str}")
self.root.clipboard_clear()
self.root.clipboard_append(box_str)
if __name__ == "__main__":
if len(sys.argv) < 2:
print("Usage: python plotting_gui.py <directory_or_file>")
sys.exit(1)
input_path = Path(sys.argv[1])
files_to_process = []
if input_path.is_file():
# File mode
base_dir = input_path.parent
stem = input_path.stem
# Try to locate the image in Cutleft directory
img_path = base_dir / "Cutleft" / f"{stem}.jpg"
# Fallback: Check if user provided the jpg inside Cutleft directly
if not img_path.exists() and input_path.parent.name == "Cutleft" and input_path.suffix.lower() == ".jpg":
base_dir = input_path.parent.parent
img_path = input_path
if not img_path.exists():
print(f"Error: Could not find image at {img_path}")
sys.exit(1)
files_to_process = [img_path]
else:
# Directory mode
base_dir = input_path
cutleft_dir = base_dir / "Cutleft"
if not cutleft_dir.exists():
print(f"Error: {cutleft_dir} does not exist.")
sys.exit(1)
files_to_process = sorted(cutleft_dir.glob("*.jpg"))
try:
all_labels = list(filter(None, (base_dir / "labels").read_text().splitlines()))
except FileNotFoundError:
all_labels = []
# Start Processing Thread
t = threading.Thread(target=worker_thread, args=(base_dir, files_to_process, all_labels))
t.daemon = True # Kill thread if main app closes
t.start()
# Start GUI
root = tk.Tk()
app = ImageViewer(root, base_dir)
root.mainloop()