116 lines
2.7 KiB
Python
116 lines
2.7 KiB
Python
# Standard library imports
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from __future__ import annotations
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import ctypes
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from dataclasses import dataclass
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import datetime as dt
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from enum import auto, Enum
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import functools
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import platform
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from time import sleep
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from typing import Optional, NamedTuple
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# Third party imports
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import numpy as np
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import pyqtgraph as pg # type: ignore
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from sqlalchemy.orm.session import Session
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import vlc # type: ignore
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# PyQt imports
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from PyQt6.QtCore import (
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pyqtSignal,
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QObject,
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QThread,
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)
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from pyqtgraph import PlotWidget
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from pyqtgraph.graphicsItems.PlotDataItem import PlotDataItem # type: ignore
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from pyqtgraph.graphicsItems.LinearRegionItem import LinearRegionItem # type: ignore
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# App imports
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from config import Config
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from log import log
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from models import PlaylistRows
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from vlcmanager import VLCManager
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class Col(Enum):
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START_GAP = 0
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TITLE = auto()
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ARTIST = auto()
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INTRO = auto()
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DURATION = auto()
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START_TIME = auto()
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END_TIME = auto()
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LAST_PLAYED = auto()
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BITRATE = auto()
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NOTE = auto()
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def singleton(cls):
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"""
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Make a class a Singleton class (see
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https://realpython.com/primer-on-python-decorators/#creating-singletons)
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"""
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@functools.wraps(cls)
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def wrapper_singleton(*args, **kwargs):
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if not wrapper_singleton.instance:
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wrapper_singleton.instance = cls(*args, **kwargs)
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return wrapper_singleton.instance
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wrapper_singleton.instance = None
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return wrapper_singleton
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class FileErrors(NamedTuple):
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path: str
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error: str
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class ApplicationError(Exception):
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"""
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Custom exception
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"""
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pass
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@singleton
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@dataclass
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class MusicMusterSignals(QObject):
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"""
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Class for all MusicMuster signals. See:
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- https://zetcode.com/gui/pyqt5/eventssignals/
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- https://stackoverflow.com/questions/62654525/
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emit-a-signal-from-another-class-to-main-class
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and Singleton class at
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https://refactoring.guru/design-patterns/singleton/python/example#example-0
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"""
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begin_reset_model_signal = pyqtSignal(int)
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enable_escape_signal = pyqtSignal(bool)
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end_reset_model_signal = pyqtSignal(int)
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next_track_changed_signal = pyqtSignal()
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resize_rows_signal = pyqtSignal(int)
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search_songfacts_signal = pyqtSignal(str)
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search_wikipedia_signal = pyqtSignal(str)
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show_warning_signal = pyqtSignal(str, str)
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span_cells_signal = pyqtSignal(int, int, int, int, int)
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status_message_signal = pyqtSignal(str, int)
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track_ended_signal = pyqtSignal()
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def __post_init__(self):
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super().__init__()
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class Tags(NamedTuple):
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artist: str
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title: str
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bitrate: int
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duration: int
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class TrackInfo(NamedTuple):
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track_id: int
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row_number: int
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