feat: multiscale

README.md

@@ -51,4 +51,4 @@ For example, if you want to convert DMZ-White to Windows:
 are using unconventional distros (e.g. Alpine) and are getting errors related
 to `wand`, please see the [Wand documentation on installation][wand-install].
 
-  [wand-install]: https://docs.wand-py.org/en/0.6.7/guide/install.html
+[wand-install]: https://docs.wand-py.org/en/0.6.7/guide/install.html

win2xcur/cursor.py

@@ -16,6 +16,10 @@ def __init__(self, image: SingleImage, hotspot: Tuple[int, int], nominal: int) -
     def __repr__(self) -> str:
         return f'CursorImage(image={self.image!r}, hotspot={self.hotspot!r}, nominal={self.nominal!r})'
 
+    def scale(self, width: int, height: int) -> None:
+        self.image.scale(width, height)
+        self.nominal = max(width, height)
+
 
 class CursorFrame:
     images: List[CursorImage]

win2xcur/main/win2xcur.py

@@ -7,7 +7,7 @@
 from threading import Lock
 from typing import BinaryIO
 
-from win2xcur import scale, shadow
+from win2xcur import scale, shadow, multiscale
 from win2xcur.parser import open_blob
 from win2xcur.writer import to_x11
 
@@ -34,6 +34,10 @@ def main() -> None:
                         help='color of the shadow')
     parser.add_argument('--scale', default=None, type=float,
                         help='Scale the cursor by the specified factor.')
+    parser.add_argument('--multiscale', action='store_true',
+                        help='Generate multiple sizes for each cursor.')
+    parser.add_argument('--multiscale-min', type=int, default=12,
+                        help='Minimum size to generate.')
 
     args = parser.parse_args()
     print_lock = Lock()
@@ -48,7 +52,9 @@ def process(file: BinaryIO) -> None:
                 print(f'Error occurred while processing {name}:', file=sys.stderr)
                 traceback.print_exc()
         else:
-            if args.scale:
+            if args.multiscale:
+                multiscale.generates_frames(cursor=cursor, min_size=args.multiscale_min)
+            elif args.scale:
                 scale.apply_to_frames(cursor.frames, scale=args.scale)
             if args.shadow:
                 shadow.apply_to_frames(cursor.frames, color=args.shadow_color, radius=args.shadow_radius,

win2xcur/multiscale.py

@@ -0,0 +1,32 @@
+from win2xcur.cursor import CursorFrame, CursorImage
+
+MULTSCALE = [16, 24, 32, 48, 64, 96, 128, 192, 256]
+
+def generates_frames(cursor, min_size: int) -> None:
+    """Generates multiple sizes for each cursor.
+
+    Args:
+        cursor (Cursor): The cursor to generate sizes for.
+        min_size (int): The minimum size to generate.
+
+    Returns:
+        List[Cursor]: The generated cursors.
+    """
+    frames = cursor.frames
+    new_frames = []
+    image_size = frames[0].images[0].nominal
+    for size in MULTSCALE:
+        if size > image_size:
+            continue
+        if size < min_size:
+            break
+        for frame in frames:
+            new_images = []
+            for cur in frame:
+                new_cur = CursorImage(cur.image.clone(), cur.hotspot, cur.nominal)
+                new_cur.scale(size, size)
+                new_images.append(new_cur)
+            new_frame = CursorFrame(new_images, frame.delay)
+            new_frames.append(new_frame)
+    del cursor.frames[:]
+    cursor.frames.extend(new_frames)

win2xcur/scale.py

@@ -6,7 +6,7 @@
 def apply_to_frames(frames: List[CursorFrame], *, scale: float) -> None:
     for frame in frames:
         for cursor in frame:
-            cursor.image.scale(
+            cursor.scale(
                 int(round(cursor.image.width * scale)),
                 int(round(cursor.image.height) * scale),
             )