| import gradio as gr |
| import io |
| from PIL import Image |
|
|
| import barcode |
| from barcode.writer import ImageWriter |
| import qrcode |
| from pylibdmtx import encode |
|
|
| def generate_barcode(barcode_type, data): |
| if barcode_type == 'EAN13': |
| try: |
| ean = barcode.get('ean13', data, writer=ImageWriter()) |
| except Exception as e: |
| return f"Error: {e}" |
| buffer = io.BytesIO() |
| ean.write(buffer) |
| buffer.seek(0) |
| img = Image.open(buffer) |
| return img |
| elif barcode_type == 'QR Code': |
| img = qrcode.make(data) |
| return img |
| elif barcode_type == 'DataMatrix': |
| try: |
| encoded = encode(data.encode('utf-8')) |
| except Exception as e: |
| return f"Error: {e}" |
| buffer = io.BytesIO(encoded.png) |
| img = Image.open(buffer) |
| return img |
| else: |
| return "Unsupported barcode type." |
|
|
| with gr.Blocks() as demo: |
| gr.Markdown("### 條碼生成器 (EAN13, QR Code, DataMatrix)") |
| barcode_type = gr.Radio(['EAN13', 'QR Code', 'DataMatrix'], value='EAN13', label="選擇條碼格式") |
| data_input = gr.Textbox(label="輸入條碼內容", value="123456789012") |
| output = gr.Image(label="生成的條碼") |
| error_msg = gr.Textbox(visible=False, interactive=False) |
|
|
| def on_generate(barcode_type, data): |
| result = generate_barcode(barcode_type, data) |
| if isinstance(result, str): |
| error_msg.visible = True |
| error_msg.value = result |
| return None |
| else: |
| error_msg.visible = False |
| error_msg.value = "" |
| return result |
|
|
| data_input.change(on_generate, [barcode_type, data_input], output) |
| barcode_type.change(on_generate, [barcode_type, data_input], output) |
|
|
| demo.launch() |
|
|
