Move logic for window size and position into Window class

manimlib/config.py

@@ -5,7 +5,6 @@ import colour
 import importlib
 import inspect
 import os
-import screeninfo
 import sys
 import yaml
 
@@ -311,48 +310,15 @@ def get_resolution(args: Optional[Namespace] = None, global_config: Optional[dic
     return int(width_str), int(height_str)
 
 
-def get_window_position(monitor: screeninfo.Monitor, position_string: str, size: tuple[int, int]):
-    # Find position (Perhaps factor this out)
-    # Position might be specified with a string of the form
-    # x,y for integers x and y
-    if "," in position_string:
-        return tuple(map(int, position_string.split(",")))
-    elif len(position_string) == 2:
-        # Alternatively, it might be specified with a string like
-        # UR, OO, DL, etc. specifying what corner it should go to
-        char_to_n = {"L": 0, "U": 0, "O": 1, "R": 2, "D": 2}
-        width_diff = monitor.width - size[0]
-        height_diff = monitor.height - size[1]
-        x_step = char_to_n[position_string[1]] * width_diff // 2
-        y_step = char_to_n[position_string[0]] * height_diff // 2
-        return (monitor.x + x_step, -monitor.y + y_step)
-    else:
-        raise Exception("Window position string must be either a tuple of integers, or a pair of from \"ULORD\"")
-
-
 def get_window_config(args: Namespace, global_config: dict) -> dict:
-    # Default to making window half the screen size
+    window_config = global_config["window"]
-    # but make it full screen if -f is passed in
+    # Todo, this correction of configuration should maybe happen elsewhere
-    try:
+    for key in "position", "size":
-        monitors = screeninfo.get_monitors()
+        if window_config.get(key):
-    except screeninfo.ScreenInfoError:
+            window_config[key] = eval(window_config[key])
-        # Default fallback
+    if args.full_screen:
-        monitors = [screeninfo.Monitor(width=1920, height=1080)]
+        window_config["full_screen"] = True
-    mon_index = global_config["window"]["monitor"]
+    return window_config
-    monitor = monitors[min(mon_index, len(monitors) - 1)]
-
-    width, height = get_resolution(args, global_config)
-    aspect_ratio = width / height
-
-    window_width = monitor.width
-    if not (args.full_screen or global_config["window"]["full_screen"]):
-        window_width //= 2
-    window_height = int(window_width / aspect_ratio)
-    size = (window_width, window_height)
-
-    default_position = get_window_position(monitor, global_config["window"]["position"], size)
-
-    return dict(size=size, default_position=default_position)
 
 
 def get_camera_config(args: Optional[Namespace] = None, global_config: Optional[dict] = None) -> dict:

manimlib/default_config.yml

@@ -26,14 +26,16 @@ directories:
   # but here a user can specify a different cache location
   cache: ""
 window:
-  # Set the position of window on screen, you can use directions, e.g. UL/DR/OL/OO/...
+  # The position of window on screen. UR -> Upper Right, and likewise DL -> Down and Left,
-  # also, you can also specify the position(pixel) of the upper left corner of 
+  # UO would be upper middle, etc.
-  # the window on the monitor, e.g. "960,540"
+  position_string: UR
-  position: UR
+  # If using multiple monitors, which one should show the window
-  # If using multiple monitors, which one should show the window?
+  monitor_index: 0
-  monitor: 0
   # If not full screen, the default to give it half the screen width
   full_screen: False
+  # Other optional specifications that override the above
+  # position: (500, 500)  # Specific position, in pixel coordiantes, for upper right corner
+  # size: (1920, 1080)  # Specific size, in pixels
 file_writer_config:
   # If break_into_partial_movies is set to True, then many small
   # files will be written corresponding to each Scene.play and

manimlib/window.py

@@ -6,8 +6,10 @@ import moderngl_window as mglw
 from moderngl_window.context.pyglet.window import Window as PygletWindow
 from moderngl_window.timers.clock import Timer
 from functools import wraps
+import screeninfo
 
 from manimlib.config import get_global_config
+from manimlib.constants import ASPECT_RATIO
 from manimlib.constants import FRAME_SHAPE
 
 from typing import TYPE_CHECKING
@@ -29,20 +31,24 @@ class Window(PygletWindow):
     def __init__(
         self,
         scene: Optional[Scene] = None,
-        size: tuple[int, int] = (1280, 720),
+        position_string: str = "UR",
-        default_position: tuple[int, int] = (0, 0),
+        monitor_index: int = 1,
+        full_screen: bool = False,
+        size: Optional[tuple[int, int]] = None,
+        position: Optional[tuple[int, int]] = None,
         samples: int = 0
     ):
-        super().__init__(size=size, samples=samples)
-
         self.scene = scene
-        self.default_size = size
+        self.monitor = self.get_monitor(monitor_index)
-        self.default_position = default_position
+        self.default_size = size or self.get_default_size(full_screen)
-        self.pressed_keys = set()
+        self.default_position = position or self.position_from_string(position_string)
-        self.size = size
 
+        super().__init__(samples=samples)
         self.to_default_position()
 
+        self.pressed_keys = set()
+
+
         if self.scene:
             self.init_for_scene(scene)
 
@@ -66,6 +72,30 @@ class Window(PygletWindow):
         mglw.activate_context(window=self, ctx=self.ctx)
         self.timer.start()
 
+    def get_monitor(self, index):
+        try:
+            monitors = screeninfo.get_monitors()
+            return monitors[min(index, len(monitors) - 1)]
+        except screeninfo.ScreenInfoError:
+            # Default fallback
+            return screeninfo.Monitor(width=1920, height=1080)
+
+    def get_default_size(self, full_screen=False):
+        width = self.monitor.width // (1 if full_screen else 2)
+        height = int(width // ASPECT_RATIO)
+        return (width, height)
+
+    def position_from_string(self, position_string):
+        # Alternatively, it might be specified with a string like
+        # UR, OO, DL, etc. specifying what corner it should go to
+        char_to_n = {"L": 0, "U": 0, "O": 1, "R": 2, "D": 2}
+        size = self.default_size
+        width_diff = self.monitor.width - size[0]
+        height_diff = self.monitor.height - size[1]
+        x_step = char_to_n[position_string[1]] * width_diff // 2
+        y_step = char_to_n[position_string[0]] * height_diff // 2
+        return (self.monitor.x + x_step, -self.monitor.y + y_step)
+
     def focus(self):
         """
         Puts focus on this window by hiding and showing it again.