Refactor old work

manim_presentation/__init__.py

@@ -1 +0,0 @@
-from manim_presentation.slide import Slide

manim_presentation/wizard.py

@@ -1,51 +0,0 @@
-import cv2
-import numpy as np
-import json
-import os
-import sys
-
-def prompt(question):
-    font_args = (cv2.FONT_HERSHEY_SIMPLEX, 0.7, 255)
-    display = np.zeros((130, 420), np.uint8)
-    
-    cv2.putText(
-        display,
-        "* Manim Presentation Wizard *",
-        (50, 33),
-        *font_args
-    )
-    cv2.putText(
-        display,
-        question,
-        (30, 85),
-        *font_args
-    )
-
-    cv2.imshow("wizard", display)
-    return cv2.waitKeyEx(-1)
-
-def main():
-    if(os.path.exists("./manim-presentation.json")):
-        print("The manim-presentation.json configuration file exists")
-        ans = input("Do you want to continue and overwrite it? (y/n): ")
-        if ans != "y": sys.exit(0)
-
-    prompt("Press any key to continue")
-    PLAYPAUSE_KEY = prompt("Press the PLAY/PAUSE key")
-    CONTINUE_KEY = prompt("Press the CONTINUE/NEXT key")
-    BACK_KEY = prompt("Press the BACK key")
-    REWIND_KEY = prompt("Press the REWIND key")
-    QUIT_KEY = prompt("Press the QUIT key")
-    
-    config_file = open("./manim-presentation.json", "w")
-    json.dump(dict(
-        PLAYPAUSE_KEY=PLAYPAUSE_KEY,
-        CONTINUE_KEY=CONTINUE_KEY,
-        BACK_KEY=BACK_KEY,
-        REWIND_KEY=REWIND_KEY,
-        QUIT_KEY=QUIT_KEY
-    ), config_file)
-    config_file.close()
-
-    
-    

manim_slides/__init__.py

@@ -0,0 +1,3 @@
+from .slide import Slide, ThreeDSlide
+
+__version__ = "3.0.0"

manim_slides/commons.py

@@ -0,0 +1,27 @@
+import click
+from .defaults import CONFIG_PATH
+
+
+def config_path_option(function):
+    return click.option(
+        "-c",
+        "--config",
+        "config_path",
+        default=CONFIG_PATH,
+        type=click.Path(dir_okay=False),
+        help="Set path to configuration file.",
+    )(function)
+
+
+def config_options(function):
+    function = config_path_option(function)
+    function = click.option(
+        "-f", "--force", is_flag=True, help="Overwrite any existing configuration file."
+    )(function)
+    function = click.option(
+        "-m",
+        "--merge",
+        is_flag=True,
+        help="Merge any existing configuration file with the new configuration.",
+    )(function)
+    return function

manim_slides/config.py

@@ -0,0 +1,48 @@
+from typing import Optional, Set
+
+from pydantic import BaseModel, root_validator, validator
+
+from .defaults import LEFT_ARROW_KEY_CODE, RIGHT_ARROW_KEY_CODE
+
+
+class Key(BaseModel):
+    ids: Set[int]
+    name: Optional[str] = None
+
+    @validator("ids", each_item=True)
+    def id_is_posint(cls, v: int):
+        if v < 0:
+            raise ValueError("Key ids cannot be negative integers")
+        return v
+
+    def match(self, key_id: int):
+        return key_id in self.ids
+
+
+class Config(BaseModel):
+    QUIT: Key = Key(ids=[ord("q")], name="QUIT")
+    CONTINUE: Key = Key(ids=[RIGHT_ARROW_KEY_CODE], name="CONTINUE / NEXT")
+    BACK: Key = Key(ids=[LEFT_ARROW_KEY_CODE], name="BACK")
+    REWIND: Key = Key(ids=[ord("r")], name="REWIND")
+    PLAY_PAUSE: Key = Key(ids=[32], name="PLAY / PAUSE")
+
+    @root_validator
+    def ids_are_unique_across_keys(cls, values):
+        ids = set()
+
+        for key in values.values():
+            if len(ids.intersection(key.ids)) != 0:
+                raise ValueError(
+                    f"Two or more keys share a common key code: please make sure each key has distinc key codes"
+                )
+            ids.update(key.ids)
+
+        return values
+
+    def merge_with(self, other: "Config") -> "Config":
+        for key_name, key in self:
+            other_key = getattr(other, key_name)
+            key.ids.update(other_key.ids)
+            key.name = other_key.name or key.name
+
+        return self

manim_slides/defaults.py

@@ -0,0 +1,11 @@
+import platform
+
+FOLDER_PATH: str = "./slides"
+CONFIG_PATH: str = ".manim-slides.json"
+
+if platform.system() == "Windows":
+    RIGHT_ARROW_KEY_CODE = 2555904
+    LEFT_ARROW_KEY_CODE = 2424832
+else:
+    RIGHT_ARROW_KEY_CODE = 65363
+    LEFT_ARROW_KEY_CODE = 65361

manim_slides/main.py

@@ -0,0 +1,20 @@
+import click
+from click_default_group import DefaultGroup
+
+from . import __version__
+from .present import present
+from .wizard import wizard, init
+
+
+@click.group(cls=DefaultGroup, default="present", default_if_no_args=True)
+@click.version_option(__version__, "-v", "--version")
+@click.help_option("-h", "--help")
+def cli():
+    pass
+
+cli.add_command(present)
+cli.add_command(wizard)
+cli.add_command(init)
+
+if __name__ == "__main__":
+    cli()

manim_slides/present.py

@@ -1,34 +1,18 @@
-import cv2
-import numpy as np
-import os
-import sys
 import json
 import math
+import os
+import sys
 import time
-import argparse
 from enum import Enum
-import platform
 
-class Config:
-    @classmethod
-    def init(cls):
-        if platform.system() == "Windows":
-            cls.QUIT_KEY = ord("q")
-            cls.CONTINUE_KEY = 2555904     #right arrow
-            cls.BACK_KEY = 2424832         #left arrow
-            cls.REWIND_KEY = ord("r")
-            cls.PLAYPAUSE_KEY = 32         #spacebar
-        else:
-            cls.QUIT_KEY = ord("q")
-            cls.CONTINUE_KEY = 65363       #right arrow
-            cls.BACK_KEY = 65361           #left arrow
-            cls.REWIND_KEY = ord("r")
-            cls.PLAYPAUSE_KEY = 32         #spacebar
+import click
+import cv2
+import numpy as np
+
+from .config import Config
+from .defaults import CONFIG_PATH, FOLDER_PATH
+from .commons import config_path_option
 
-        if os.path.exists(os.path.join(os.getcwd(), "./manim-presentation.json")):
-            json_config = json.load(open(os.path.join(os.getcwd(), "./manim-presentation.json"), "r"))
-            for key, value in json_config.items():
-                setattr(cls, key, value)
 
 class State(Enum):
     PLAYING = 0
@@ -50,7 +34,7 @@ def fix_time(x):
     return x if x > 0 else 1
 
 class Presentation:
-    def __init__(self, config, last_frame_next=False):
+    def __init__(self, config, last_frame_next: bool = False):
         self.last_frame_next = last_frame_next
         self.slides = config["slides"]
         self.files = config["files"]
@@ -164,9 +148,10 @@ class Presentation:
 
 
 class Display:
-    def __init__(self, presentations, start_paused=False, fullscreen=False):
+    def __init__(self, presentations, config, start_paused=False, fullscreen=False):
         self.presentations = presentations
         self.start_paused = start_paused
+        self.config = config
 
         self.state = State.PLAYING
         self.lastframe = None
@@ -250,18 +235,18 @@ class Display:
         sleep_time = math.ceil(1000/self.current_presentation.fps)
         key = cv2.waitKeyEx(fix_time(sleep_time - self.lag))
         
-        if key == Config.QUIT_KEY:
+        if self.config.QUIT.match(key):
             self.quit()
-        elif self.state == State.PLAYING and key == Config.PLAYPAUSE_KEY:
+        elif self.state == State.PLAYING and self.config.PLAY_PAUSE.match(key):
             self.state = State.PAUSED
-        elif self.state == State.PAUSED and key == Config.PLAYPAUSE_KEY:
+        elif self.state == State.PAUSED and self.config.PLAY_PAUSE.match(key):
             self.state = State.PLAYING
-        elif self.state == State.WAIT and (key == Config.CONTINUE_KEY or key == Config.PLAYPAUSE_KEY):
+        elif self.state == State.WAIT and (self.config.CONTINUE.match(key) or self.config.PLAY_PAUSE.match(key)):
             self.current_presentation.next()
             self.state = State.PLAYING
-        elif self.state == State.PLAYING and key == Config.CONTINUE_KEY:
+        elif self.state == State.PLAYING and self.config.CONTINUE.match(key):
             self.current_presentation.next()
-        elif key == Config.BACK_KEY:
+        elif self.config.BACK.match(key):
             if self.current_presentation.current_slide_i == 0:
                 self.current_presentation_i = max(0, self.current_presentation_i - 1)
                 self.current_presentation.reset()
@@ -269,7 +254,7 @@ class Display:
             else:
                 self.current_presentation.prev()
                 self.state = State.PLAYING
-        elif key == Config.REWIND_KEY:
+        elif self.config.REWIND.match(key):
             self.current_presentation.rewind_slide()
             self.state = State.PLAYING
 
@@ -279,30 +264,29 @@ class Display:
         sys.exit()
 
 
-def main():
-    parser = argparse.ArgumentParser()
-
-    parser.add_argument("scenes", metavar="scenes", type=str, nargs="+", help="Scenes to present")
-    parser.add_argument("--folder", type=str, default="./presentation", help="Presentation files folder")
-    parser.add_argument("--start-paused", action="store_true", help="Start paused")
-    parser.add_argument("--fullscreen", action="store_true", help="Fullscreen")
-    parser.add_argument("--last-frame-next", action="store_true", help="Show the next animation first frame as last frame (hack)")
-    
-    args = parser.parse_args()
-    args.folder = os.path.normcase(args.folder)
-
-    Config.init()
+@click.command()
+@click.argument("scenes", nargs=-1)
+@config_path_option
+@click.option("--folder", default=FOLDER_PATH, type=click.Path(exists=True, file_okay=False), help="Set slides folder.")
+@click.option("--start-paused", is_flag=True, help="Start paused.")
+@click.option("--fullscreen", is_flag=True, help="Fullscreen mode.")
+@click.option("--last-frame-next", is_flag=True, help="Show the next animation first frame as last frame (hack).")
+@click.help_option("-h", "--help")
+def present(scenes, config_path, folder, start_paused, fullscreen, last_frame_next):
+    """Present the different scenes"""
 
     presentations = list()
-    for scene in args.scenes:
-        config_file = os.path.join(args.folder, f"{scene}.json")
+    for scene in scenes:
+        config_file = os.path.join(folder, f"{scene}.json")
         if not os.path.exists(config_file):
             raise Exception(f"File {config_file} does not exist, check the scene name and make sure to use Slide as your scene base class")
         config = json.load(open(config_file))
-        presentations.append(Presentation(config, last_frame_next=args.last_frame_next))
+        presentations.append(Presentation(config, last_frame_next=last_frame_next))
 
-    display = Display(presentations, start_paused=args.start_paused, fullscreen=args.fullscreen)
+    if os.path.exists(config_path):
+        config = Config.parse_file(config_path)
+    else:
+        config = Config()
+
+    display = Display(presentations, config=config, start_paused=start_paused, fullscreen=fullscreen)
     display.run()
-
-if __name__ == "__main__":
-    main()

manim_slides/slide.py

@@ -1,13 +1,16 @@
-import os
 import json
+import os
 import shutil
-from manim import Scene, config
-from manim.animation.animation import Wait
+
+from manim import Scene, ThreeDScene, config
+
+from .defaults import FOLDER_PATH
+
 
 class Slide(Scene):
-    def __init__(self, *args, **kwargs):
-        self.output_folder = kwargs.pop("output_folder", "./presentation")
+    def __init__(self, *args, output_folder=FOLDER_PATH, **kwargs):
         super(Slide, self).__init__(*args, **kwargs)
+        self.output_folder = output_folder
         self.slides = list()
         self.current_slide = 1
         self.current_animation = 0
@@ -29,7 +32,7 @@ class Slide(Scene):
         self.pause_start_animation = self.current_animation
     
     def start_loop(self):
-        assert self.loop_start_animation is None, "You cant nest loops"
+        assert self.loop_start_animation is None, "You cannot nest loops"
         self.loop_start_animation = self.current_animation
     
     def end_loop(self):
@@ -81,3 +84,6 @@ class Slide(Scene):
             files=files
         ), f)
         f.close()
+
+class ThreeDSlide(ThreeDScene, Slide):
+    pass

manim_slides/wizard.py

@@ -0,0 +1,71 @@
+import os
+import sys
+
+import click
+import cv2
+import numpy as np
+
+from .config import Config
+from .commons import config_options
+from .defaults import CONFIG_PATH
+
+
+def prompt(question: str) -> int:
+    font_args = (cv2.FONT_HERSHEY_SIMPLEX, 0.7, 255)
+    display = np.zeros((130, 420), np.uint8)
+
+    cv2.putText(display, "* Manim Slides Wizard *", (70, 33), *font_args)
+    cv2.putText(display, question, (30, 85), *font_args)
+
+    cv2.imshow("Manim Slides Configuration Wizard", display)
+    return cv2.waitKeyEx(-1)
+
+
+@click.command()
+@config_options
+def wizard(config_path, force, merge):
+    """Launch configuration wizard."""
+    return _init(config_path, force, merge, skip_interactive=False)
+
+@click.command()
+@config_options
+def init(config_path, force, merge, skip_interactive=False):
+    """Initialize a new default configuration file."""
+    return _init(config_path, force, merge, skip_interactive=True)
+
+def _init(config_path, force, merge, skip_interactive=False):
+
+    if os.path.exists(config_path):
+        click.secho(f"The `{CONFIG_PATH}` configuration file exists")
+        
+        if not force and not merge:
+            choice = click.prompt("Do you want to continue and (o)verwrite / (m)erge it, or (q)uit?", type=click.Choice(["o", "m", "q"], case_sensitive=False))
+
+            force = choice == "o"
+            merge = choice == "m"
+
+        if force:
+            click.secho("Overwriting.")
+        elif merge:
+            click.secho("Merging.")
+        else:
+            click.secho("Exiting.")
+            sys.exit(0)
+
+
+    config = Config()
+
+    if not skip_interactive:
+
+        prompt("Press any key to continue")
+
+        for _, key in config:
+            key.ids = [prompt(f"Press the {key.name} key")]
+
+    if merge:
+        config = Config.parse_file(config_path).merge_with(config)
+
+    with open(config_path, "w") as config_file:
+        config_file.write(config.json(indent=4))
+
+    click.echo(f"Configuration file successfully save to `{config_path}`")