OpenGL: changed submobjects to be a property (#1926)

* Add property for submobjects

* Use property for opengl submobjects

* Update manim/mobject/opengl_mobject.py

Co-authored-by: Benjamin Hackl <[email protected]>

Co-authored-by: Benjamin Hackl <[email protected]>

Author: k4pran

manim/mobject/opengl_mobject.py

@@ -101,7 +101,7 @@ def __init__(
         # Event listener
         self.listen_to_events = listen_to_events
 
-        self.submobjects = []
+        self._submobjects = []
         self.parents = []
         self.parent = None
         self.family = [self]
@@ -471,6 +471,12 @@ def replace_submobject(self, index, new_submob):
         self.assemble_family()
         return self
 
+    @deprecated(
+        since="v0.12.0",
+        until="v0.13.0",
+        replacement="self.submobjects",
+        message="Switching to using properties for submobjects",
+    )
     def set_submobjects(self, submobject_list):
         self.remove(*self.submobjects)
         self.add(*submobject_list)
@@ -1904,6 +1910,15 @@ def get_shader_uniforms(self):
     def get_shader_vert_indices(self):
         return self.shader_indices
 
+    @property
+    def submobjects(self):
+        return self._submobjects
+
+    @submobjects.setter
+    def submobjects(self, submobject_list):
+        self.remove(*self.submobjects)
+        self.add(*submobject_list)
+
     # Event Handlers
     """
         Event handling follows the Event Bubbling model of DOM in javascript.

manim/mobject/svg/text_mobject.py

@@ -482,10 +482,7 @@ def __init__(
         )
         self.text = text
         if self.disable_ligatures:
-            if config.renderer == "opengl":
-                self.set_submobjects(self.gen_chars())
-            else:
-                self.submobjects = [*self.gen_chars()]
+            self.submobjects = [*self.gen_chars()]
         self.chars = self.get_group_class()(*self.submobjects)
         self.text = text_without_tabs.replace(" ", "").replace("\n", "")
         if config.renderer == "opengl":