Reimplement animated covers with Pillow

src/game_cover.py

@@ -17,28 +17,68 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from gi.repository import GdkPixbuf
+from gi.repository import GdkPixbuf, GLib
+
+from .save_cover import resize_animation
 
 
 class GameCover:
+    pixbuf = None
+    path = None
+    animation = None
+
     placeholder_pixbuf = GdkPixbuf.Pixbuf.new_from_resource_at_scale(
         "/hu/kramo/Cartridges/library_placeholder.svg", 400, 600, False
     )
 
     def __init__(self, picture, pixbuf=None, path=None):
         self.picture = picture
-        self.pixbuf = pixbuf
+        self.new_pixbuf(pixbuf, path)
+
+    def new_pixbuf(self, pixbuf=None, path=None):
+        self.animation = None
+        self.pixbuf = None
+        self.path = None
+
+        if pixbuf:
+            self.pixbuf = pixbuf
 
         if path:
-            self.pixbuf = GdkPixbuf.Pixbuf.new_from_file(path)
+            if str(path).rsplit(".", maxsplit=1)[-1] == "gif":
+                self.path = resize_animation(path)
+                self.animation = GdkPixbuf.PixbufAnimation.new_from_file(str(self.path))
+                self.anim_iter = self.animation.get_iter()
+                self.update_animation(self.animation)
+            else:
+                self.path = path
+                self.pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_scale(
+                    str(path), 200, 300, False
+                )
 
         if not self.pixbuf:
             self.pixbuf = self.placeholder_pixbuf
 
-        self.update_pixbuf()
+        if not self.animation:
+            self.set_pixbuf(self.pixbuf)
 
     def get_pixbuf(self):
-        return self.pixbuf
+        return self.animation.get_static_image() if self.animation else self.pixbuf
 
-    def update_pixbuf(self):
-        self.picture.set_pixbuf(self.pixbuf)
+    def get_animation(self):
+        return self.path if self.animation else None
+
+    def set_pixbuf(self, pixbuf):
+        self.picture.set_pixbuf(pixbuf)
+
+    def update_animation(self, animation):
+        if self.animation == animation:
+            self.anim_iter.advance()
+
+            self.set_pixbuf(self.anim_iter.get_pixbuf())
+
+            delay_time = self.anim_iter.get_delay_time()
+            GLib.timeout_add(
+                20 if delay_time < 20 else delay_time,
+                self.update_animation,
+                animation,
+            )