Create GameCover class

src/game_cover.py

@@ -0,0 +1,44 @@
+# game_cover.py
+#
+# Copyright 2022-2023 kramo
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from gi.repository import GdkPixbuf
+
+
+class GameCover:
+    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
+
+        if path:
+            self.pixbuf = GdkPixbuf.Pixbuf.new_from_file(path)
+
+        if not self.pixbuf:
+            self.pixbuf = self.placeholder_pixbuf
+
+        self.update_pixbuf()
+
+    def get_pixbuf(self):
+        return self.pixbuf
+
+    def update_pixbuf(self):
+        self.picture.set_pixbuf(self.pixbuf)