Wed Apr 10 01:51:00 CST 2024 inscode

main.py

 import streamlit as st
-from streamlit_option_menu import option_menu
+from PIL import ImageGrab, Image
+import cv2
+import numpy as np
+import qrcode
+import io
+import base64
 
-# 设置Streamlit应用程序的标题
-st.set_page_config(page_title="app name", layout="wide")
+# Define app title and favicon
+st.set_page_config(page_title="QR Code File Transfer", page_icon=":floppy_disk:")
 
-menu1="菜单1"
-menu2="菜单2"
+# Define constants
+SCREENSHOT_BTN = "Take Screenshot"
+QR_CODE_BTN = "Generate QR Code"
+SELECT_FILE_BTN = "Select File"
+SEND_FILE_BTN = "Send File"
+RECEIVE_FILE_BTN = "Receive File"
+FILE_TYPES = ["png", "jpg", "txt"]
 
-with st.sidebar:
-    menu = option_menu("菜单", [menu1, menu2], 
-        icons=['house', "list-task"], 
-        menu_icon="cast", default_index=0)
 
-def main():
+class QRCodeFileTransfer:
+    def __init__(self):
+        self.screenshot = None
+        self.qr_code = None
+        self.file_path = None
+        self.file_type = None
+        self.file_data = None
 
-    if menu == menu1:
-        st.subheader(f"{menu1}")
+    def take_screenshot(self, x, y, w, h):
+        # Use OpenCV to capture screenshot of specific region
+        img = cv2.cvtColor(
+            np.array(ImageGrab.grab(bbox=(x, y, x + w, y + h))), cv2.COLOR_BGR2RGB)
+        self.screenshot = Image.fromarray(img)
 
-    if menu == menu2:
-        st.subheader(f"{menu2}")
+    def generate_qr_code(self):
+        # Convert file data to base64 string
+        file_data_str = base64.b64encode(self.file_data).decode("utf-8")
+        # Generate QR code with base64 string
+        self.qr_code = qrcode.make(file_data_str)
 
-if __name__ == '__main__':
-    main()
+    def save_file(self):
+        # Save file to disk
+        with open(self.file_path, "wb") as f:
+            f.write(self.file_data)
+
+    def receive_file(self, qr_code_data):
+        # Decode base64 string from QR code data
+        file_data_str = base64.b64decode(qr_code_data).decode("utf-8")
+        # Split base64 string to get file type and file data
+        self.file_type, file_data_str = file_data_str.split(",")
+        # Convert file data from string to bytes
+        self.file_data = base64.b64decode(file_data_str.encode("utf-8"))
+        # Prompt user to select file path to save file
+        uploaded_file = st.file_uploader("Select a file path to save file",
+                                         type=self.file_type)
+        if uploaded_file is not None:
+            self.file_path = uploaded_file.name
+            # Save file to disk
+            self.save_file()
+            st.write("File saved successfully!")
+
+    def run(self):
+        # Display title and instructions
+        st.title("QR Code File Transfer")
+        st.write("This app allows you to transfer files using QR codes.")
+        st.write("To send a file, take a screenshot of the file and generate a QR code.")
+        st.write("To receive a file, scan the QR code and select the file path to save the file.")
+
+        # Display screenshot button and capture screenshot
+        if st.button(SCREENSHOT_BTN):
+            st.write("Click and drag to select screenshot area.")
+            x, y, w, h = st.select_rectangle("Select Screenshot Area", source=self.screenshot)
+            self.take_screenshot(x, y, w, h)
+            st.image(self.screenshot, caption="Screenshot")
+
+        # Display QR code button and generate QR code
+        if self.screenshot is not None and st.button(QR_CODE_BTN):
+            # Prompt user to select file to transfer
+            uploaded_file = st.file_uploader("Select file to transfer", type=FILE_TYPES)
+            if uploaded_file is not None:
+                self.file_path = uploaded_file.name
+                self.file_data = uploaded_file.read()
+                self.generate_qr_code()
+                # Display QR code
+                st.image(self.qr_code, caption="QR Code")
+
+        # Display file upload button and receive file
+        if st.button(RECEIVE_FILE_BTN):
+            # Prompt user to upload QR code image file
+            qr_code_img = st.file_uploader("Select QR Code Image File", type=["png", "jpg"])
+            if qr_code_img is not None:
+                # Decode QR code data from image
+                img_bytes = io.BytesIO(qr_code_img.read())
+                qr_code = qrcode.QRCode()
+                qr_code.add_data(img_bytes.getvalue())
+                qr_code.make(fit=True)
+                qr_code_data = qr_code.data.decode("utf-8")
+                # Receive file from QR code data
+                self.receive_file(qr_code_data)
+
+
+# Initialize app and run it
+qrcode_transfer = QRCodeFileTransfer()
+qrcode_transfer.run()
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