Review changes

scripts/generate_weather_icons.py

@@ -14,14 +14,15 @@ import shutil
 import subprocess
 import tempfile
 import urllib.request
-import xml.etree.ElementTree as ET
 import zipfile
 
 from PIL import Image
 
+from svg_utils import fit_inside_canvas, parse_svg_intrinsic_size
+
 try:
     import cairosvg  # type: ignore
-except Exception:
+except ImportError:
     cairosvg = None
 
 
@@ -52,55 +53,6 @@ ICON_SOURCES = {
     "WI48_THUNDERSTORM": "wi-thunderstorm.svg",
 }
 
-
-def parse_svg_intrinsic_size(svg_data):
-    try:
-        root = ET.fromstring(svg_data)
-    except ET.ParseError:
-        return None, None
-
-    viewbox = root.get("viewBox") or root.get("viewbox")
-    if viewbox:
-        parts = viewbox.replace(",", " ").split()
-        if len(parts) == 4:
-            try:
-                vb_w = float(parts[2])
-                vb_h = float(parts[3])
-                if vb_w > 0 and vb_h > 0:
-                    return vb_w, vb_h
-            except ValueError:
-                pass
-
-    def parse_len(value):
-        if not value:
-            return None
-        cleaned = "".join(ch for ch in value if ch.isdigit() or ch in ".-")
-        if not cleaned:
-            return None
-        try:
-            parsed = float(cleaned)
-            return parsed if parsed > 0 else None
-        except ValueError:
-            return None
-
-    return parse_len(root.get("width")), parse_len(root.get("height"))
-
-
-def fit_inside_canvas(src_w, src_h, dst_w, dst_h):
-    if src_w <= 0 or src_h <= 0:
-        return dst_w, dst_h
-
-    src_ratio = src_w / src_h
-    dst_ratio = dst_w / dst_h
-    if src_ratio >= dst_ratio:
-        fit_w = dst_w
-        fit_h = max(1, int(round(fit_w / src_ratio)))
-    else:
-        fit_h = dst_h
-        fit_w = max(1, int(round(fit_h * src_ratio)))
-    return fit_w, fit_h
-
-
 def ensure_resvg_binary():
     if shutil.which("resvg"):
         return Path(shutil.which("resvg"))