added app.py

app.py

@@ -0,0 +1,157 @@
+import io
+import zipfile
+import json
+import time
+from PIL import Image
+import gradio as gr
+
+def center_crop_square(img: Image.Image) -> Image.Image:
+    w, h = img.size
+    min_side = min(w, h)
+    left = (w - min_side) // 2
+    top = (h - min_side) // 2
+    right = left + min_side
+    bottom = top + min_side
+    return img.crop((left, top, right, bottom))
+
+def generate_favicons(image, name, short_name, theme_color, background_color, tile_color):
+    if image is None:
+        return None
+    
+    img = Image.open(image).convert("RGBA")
+    img = center_crop_square(img)
+
+    if not name:
+        name = "My App"
+    if not short_name:
+        short_name = "App"
+    if not theme_color:
+        theme_color = "#ffffff"
+    if not background_color:
+        background_color = "#ffffff"
+    if not tile_color:
+        tile_color = theme_color
+
+    icon_specs = [
+        (16, "favicon-16x16.png"),
+        (32, "favicon-32x32.png"),
+        (48, "favicon-48x48.png"),
+        (57, "apple-icon-57x57.png"),
+        (60, "apple-icon-60x60.png"),
+        (72, "apple-icon-72x72.png"),
+        (76, "apple-icon-76x76.png"),
+        (96, "android-icon-96x96.png"),
+        (114, "apple-icon-114x114.png"),
+        (120, "apple-icon-120x120.png"),
+        (128, "android-icon-128x128.png"),
+        (144, "android-icon-144x144.png"),
+        (152, "apple-icon-152x152.png"),
+        (167, "apple-icon-167x167.png"),
+        (180, "apple-icon-180x180.png"),
+        (192, "android-icon-192x192.png"),
+        (256, "android-icon-256x256.png"),
+        (384, "android-icon-384x384.png"),
+        (512, "android-icon-512x512.png"),
+        (150, "ms-icon-150x150.png"),
+        (32, "ms-icon-32x32.png"),
+        (70, "ms-icon-70x70.png"),
+        (310, "ms-icon-310x310.png"),
+    ]
+
+    files = {}
+
+    # Generate PNGs
+    for size, filename in icon_specs:
+        resized = img.resize((size, size), Image.LANCZOS)
+        buf = io.BytesIO()
+        resized.save(buf, format="PNG")
+        files[filename] = buf.getvalue()
+
+    # Apple touch icon
+    if "apple-icon-180x180.png" in files:
+        files["apple-touch-icon.png"] = files["apple-icon-180x180.png"]
+
+    # favicon.ico (multi-size)
+    ico_sizes = [(16,16), (32,32), (48,48), (64,64), (128,128), (256,256)]
+    ico_buf = io.BytesIO()
+    img.save(ico_buf, format="ICO", sizes=ico_sizes)
+    files["favicon.ico"] = ico_buf.getvalue()
+
+    # manifest.json
+    icons = [
+        {
+            "src": fn,
+            "sizes": f"{sz}x{sz}",
+            "type": "image/png"
+        }
+        for sz, fn in icon_specs if fn.endswith(".png")
+    ]
+    icons.append({
+        "src": "android-icon-512x512.png",
+        "sizes": "512x512",
+        "type": "image/png",
+        "purpose": "any maskable"
+    })
+
+    manifest = {
+        "name": name,
+        "short_name": short_name,
+        "start_url": "/",
+        "display": "standalone",
+        "background_color": background_color,
+        "theme_color": theme_color,
+        "icons": icons
+    }
+    files["site.webmanifest"] = json.dumps(manifest, indent=2).encode()
+    files["manifest.json"] = json.dumps(manifest, indent=2).encode()
+
+    # browserconfig.xml
+    bc = f"""<?xml version="1.0" encoding="utf-8"?>
+<browserconfig><msapplication><tile>
+  <square70x70logo src="ms-icon-70x70.png"/>
+  <square150x150logo src="ms-icon-150x150.png"/>
+  <square310x310logo src="ms-icon-310x310.png"/>
+  <TileColor>{tile_color}</TileColor>
+</tile></msapplication></browserconfig>
+"""
+    files["browserconfig.xml"] = bc.encode()
+
+    # README.txt
+    readme = f"Generated favicons for {name}\n\nAll icons are in the root of the ZIP.\nTheme color: {theme_color}\n"
+    files["README.txt"] = readme.encode()
+
+    # ZIP
+    zip_buf = io.BytesIO()
+    with zipfile.ZipFile(zip_buf, "w") as zf:
+        for path, data in files.items():
+            zf.writestr(path, data)
+    zip_buf.seek(0)
+
+    ts = int(time.time())
+    filename = f"favicons-{ts}.zip"
+    return filename, zip_buf
+
+def gradio_ui(image, name, short_name, theme_color, background_color, tile_color):
+    result = generate_favicons(image, name, short_name, theme_color, background_color, tile_color)
+    if result is None:
+        return None
+    filename, zip_buf = result
+    return (filename, zip_buf)
+
+demo = gr.Interface(
+    fn=gradio_ui,
+    inputs=[
+        gr.Image(type="filepath", label="Upload Image"),
+        gr.Textbox(label="App Name", placeholder="My App"),
+        gr.Textbox(label="Short Name", placeholder="App"),
+        gr.ColorPicker(label="Theme Color", value="#ffffff"),
+        gr.ColorPicker(label="Background Color", value="#ffffff"),
+        gr.ColorPicker(label="Tile Color", value="#ffffff"),
+    ],
+    outputs=gr.File(label="Download Favicons ZIP"),
+    title="Favicon Generator",
+    description="Upload an image and generate favicons + manifest + favicon.ico for PWA"
+)
+
+if __name__ == "__main__":
+    demo.launch(debug=True, pwa=True)