mirror of
https://github.com/3b1b/manim.git
synced 2025-04-13 09:47:07 +00:00
74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
from __future__ import annotations
|
|
|
|
from typing import Any
|
|
from IPython.terminal.embed import KillEmbedded
|
|
|
|
|
|
from manimlib.config import get_global_config
|
|
import manimlib.extract_scene
|
|
|
|
from manimlib.window import Window
|
|
|
|
|
|
from typing import TYPE_CHECKING
|
|
if TYPE_CHECKING:
|
|
from argparse import Namespace
|
|
|
|
|
|
class ReloadManager:
|
|
"""
|
|
Manages the loading and running of scenes and is called directly from the
|
|
main entry point of ManimGL.
|
|
|
|
The name "reload" comes from the fact that this class handles the
|
|
reinitialization of scenes when requested by the user via the `reload()`
|
|
command in the IPython shell.
|
|
"""
|
|
|
|
window = None
|
|
is_reload = False
|
|
|
|
def run(self):
|
|
"""
|
|
Runs the scenes in a loop and detects when a scene reload is requested.
|
|
"""
|
|
while True:
|
|
try:
|
|
# blocking call since a scene will init an IPython shell()
|
|
self.retrieve_scenes_and_run()
|
|
return
|
|
except KillEmbedded:
|
|
# Requested via the `exit_raise` IPython runline magic
|
|
# by means of our scene.reload() command
|
|
self.note_reload()
|
|
except KeyboardInterrupt:
|
|
break
|
|
|
|
def note_reload(self):
|
|
self.is_reload = True
|
|
print("Reloading...")
|
|
|
|
def retrieve_scenes_and_run(self):
|
|
"""
|
|
Take the global configuration, which is based on CLI arguments,
|
|
modify it based on reloading status, then extract and run scenes
|
|
accordingly
|
|
"""
|
|
global_config = get_global_config()
|
|
scene_config = global_config["scene"]
|
|
run_config = global_config["run"]
|
|
|
|
run_config.update(is_reload=self.is_reload)
|
|
|
|
# Create or reuse window
|
|
if run_config["show_in_window"] and not self.window:
|
|
self.window = Window(**global_config["window"])
|
|
scene_config.update(window=self.window)
|
|
|
|
# Scenes
|
|
scenes = manimlib.extract_scene.main(scene_config, run_config)
|
|
if len(scenes) == 0:
|
|
print("No scenes found to run")
|
|
|
|
for scene in scenes:
|
|
scene.run()
|