303 lines
13 KiB
Python
303 lines
13 KiB
Python
import sys
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import os
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import pygame
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import time
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import re
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from PyQt6.QtWidgets import (
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QApplication, QMainWindow, QWidget, QVBoxLayout, QLabel,
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QPushButton, QSlider, QHBoxLayout, QFileDialog
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)
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from PyQt6.QtCore import QTimer, Qt, QSize, QPropertyAnimation, QPoint
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from PyQt6.QtGui import QPixmap, QIcon, QPalette, QColor
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class MusicPlayer(QMainWindow):
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def __init__(self):
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super().__init__()
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self.setWindowTitle("DreamLife|MusicPlayer")
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self.setGeometry(300, 200, 400, 500)
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self.initUI()
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pygame.mixer.init()
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self.playlist = [] # 歌曲列表（文件路径）
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self.current_song_index = -1 # 当前播放歌曲索引
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self.lyrics = [] # 解析后的歌词列表 [(时间戳, 歌词)]
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self.current_lyric_index = 0 # 当前歌词索引
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self.is_playing = False # 播放状态
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self.music_length = 0 # 音乐总时长（秒）
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self.start_time = 0 # 播放开始时间（用于计算已播放时间）
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self.pause_time = 0 # 暂停时记录的播放进度（秒）
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self.animation = None # 存储滚动动画对象
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self.last_lyric = None # 上一次显示的歌词，用于避免重复启动动画
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self.music_file = None # 当前音乐文件路径
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self.lyrics_file = None # 当前歌词文件路径
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self.cover_file = None # 当前封面文件路径
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def initUI(self):
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self.central_widget = QWidget()
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self.setCentralWidget(self.central_widget)
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self.layout = QVBoxLayout()
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self.layout.setAlignment(Qt.AlignmentFlag.AlignCenter)
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self.central_widget.setLayout(self.layout)
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# 设置背景颜色
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self.set_background_color("#2E2E2E")
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# 封面
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self.cover_label = QLabel()
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self.layout.addWidget(self.cover_label, alignment=Qt.AlignmentFlag.AlignCenter)
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# 添加一个按钮用于加载外部音乐文件夹
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self.load_folder_button = QPushButton("选择音乐文件夹")
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self.load_folder_button.clicked.connect(self.open_folder_dialog)
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self.layout.addWidget(self.load_folder_button, alignment=Qt.AlignmentFlag.AlignCenter)
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# 歌词显示区域（固定大小容器，便于动画处理，不随内容改变大小）
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self.lyrics_container = QWidget()
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self.lyrics_container.setFixedSize(300, 50)
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self.lyrics_container.setStyleSheet("background-color: transparent;")
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# 歌词标签放置在容器中
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self.lyrics_browser = QLabel("", self.lyrics_container)
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self.lyrics_browser.setAlignment(Qt.AlignmentFlag.AlignCenter)
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self.lyrics_browser.setStyleSheet("font-size: 24px; color: white; font-weight: bold;")
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self.lyrics_browser.setFixedHeight(50)
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self.lyrics_browser.move(0, 0)
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self.layout.addWidget(self.lyrics_container, alignment=Qt.AlignmentFlag.AlignCenter)
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# 进度条
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self.slider = QSlider(Qt.Orientation.Horizontal)
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self.slider.setRange(0, 100)
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self.slider.sliderPressed.connect(self.pause_music)
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self.slider.sliderReleased.connect(self.seek_music)
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self.layout.addWidget(self.slider)
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# 播放控制区域（增加上一首、播放/暂停、下一首）
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self.control_layout = QHBoxLayout()
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self.control_layout.setAlignment(Qt.AlignmentFlag.AlignCenter)
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self.prev_button = QPushButton()
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self.prev_button.setIcon(QIcon(self.resource_path("file/prev.png")))
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self.prev_button.setIconSize(QSize(40, 40))
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self.prev_button.setStyleSheet("border: none;")
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self.prev_button.clicked.connect(self.play_previous_song)
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self.control_layout.addWidget(self.prev_button)
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self.play_button = QPushButton()
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self.play_button.setIcon(QIcon(self.resource_path("file/play.png")))
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self.play_button.setIconSize(QSize(52, 52))
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self.play_button.setStyleSheet("border: none;")
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self.play_button.clicked.connect(self.toggle_play_pause)
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self.control_layout.addWidget(self.play_button)
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self.next_button = QPushButton()
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self.next_button.setIcon(QIcon(self.resource_path("file/next.png")))
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self.next_button.setIconSize(QSize(40, 40))
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self.next_button.setStyleSheet("border: none;")
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self.next_button.clicked.connect(self.play_next_song)
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self.control_layout.addWidget(self.next_button)
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self.layout.addLayout(self.control_layout)
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# 定时器，每500毫秒更新一次进度和歌词
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self.timer = QTimer(self)
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self.timer.timeout.connect(self.update_lyrics_and_progress)
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def resource_path(self, relative_path):
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""" 获取资源文件的路径，适配 PyInstaller 打包模式 """
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if getattr(sys, 'frozen', False):
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base_path = sys._MEIPASS # PyInstaller 运行时解压目录
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else:
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base_path = os.path.dirname(os.path.abspath(__file__)) # 开发模式
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return os.path.join(base_path, relative_path)
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def set_background_color(self, color):
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palette = self.palette()
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palette.setColor(QPalette.ColorRole.Window, QColor(color))
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self.setPalette(palette)
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self.central_widget.setStyleSheet(f"background-color: {color};")
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def load_cover(self):
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# 如果用户选择了封面文件，优先加载，否则加载默认封面
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if self.cover_file and os.path.exists(self.cover_file):
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pixmap = QPixmap(self.cover_file)
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else:
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cover_path = self.resource_path("file/cover.jpg")
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if os.path.exists(cover_path):
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pixmap = QPixmap(cover_path)
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else:
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self.cover_label.setText("封面未找到")
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return
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self.cover_label.setPixmap(pixmap.scaled(256, 256, Qt.AspectRatioMode.KeepAspectRatio))
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def load_lyrics(self):
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# 根据用户选择的歌词文件加载歌词，如果没有选择则使用默认歌词文件
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if self.lyrics_file and os.path.exists(self.lyrics_file):
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path = self.lyrics_file
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else:
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# 默认歌词文件（可以根据需要调整）
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path = self.resource_path("file/默认歌词.lrc")
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if os.path.exists(path):
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try:
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with open(path, 'r', encoding='utf-8') as file:
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lines = file.readlines()
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self.lyrics = []
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for line in lines:
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match = re.match(r"\[(\d+):(\d+\.\d+)](.*)", line)
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if match:
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minutes = int(match.group(1))
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seconds = float(match.group(2))
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timestamp = minutes * 60 + seconds
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lyrics_text = match.group(3).strip()
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self.lyrics.append((timestamp, lyrics_text))
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self.lyrics.sort()
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except Exception as e:
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self.lyrics_browser.setText("加载歌词出错: " + str(e))
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else:
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self.lyrics_browser.setText("歌词文件未找到")
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def open_folder_dialog(self):
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folder_path = QFileDialog.getExistingDirectory(self, "选择音乐文件夹", "")
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if folder_path:
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# 读取该文件夹下所有音乐文件（支持wav和mp3）
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self.playlist = []
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for file in os.listdir(folder_path):
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if file.lower().endswith(('.wav', '.mp3')):
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self.playlist.append(os.path.join(folder_path, file))
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self.playlist.sort() # 可按文件名排序
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if self.playlist:
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# 将当前索引设置为第一首
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self.current_song_index = 0
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self.load_current_song_resources()
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self.play_music()
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else:
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self.lyrics_browser.setText("文件夹中没有找到音乐文件")
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def load_current_song_resources(self):
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# 设置当前音乐文件路径及相关资源（歌词和封面）
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self.music_file = self.playlist[self.current_song_index]
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base, _ = os.path.splitext(self.music_file)
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lyrics_candidate = base + ".lrc"
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cover_candidate = base + ".jpg"
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self.lyrics_file = lyrics_candidate if os.path.exists(lyrics_candidate) else None
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self.cover_file = cover_candidate if os.path.exists(cover_candidate) else None
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self.load_cover()
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self.load_lyrics()
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def toggle_play_pause(self):
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if not self.is_playing:
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if self.pause_time > 0:
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self.resume_music()
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else:
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self.play_music()
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else:
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self.pause_music()
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def play_music(self):
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if self.music_file and os.path.exists(self.music_file):
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try:
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pygame.mixer.music.load(self.music_file)
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pygame.mixer.music.play(start=0)
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self.music_length = pygame.mixer.Sound(self.music_file).get_length()
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self.start_time = time.time()
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self.pause_time = 0
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self.timer.start(500)
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self.play_button.setIcon(QIcon(self.resource_path("file/pause.png")))
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self.is_playing = True
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except Exception as e:
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self.lyrics_browser.setText("播放错误: " + str(e))
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else:
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self.lyrics_browser.setText("")
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def resume_music(self):
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try:
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pygame.mixer.music.unpause()
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self.start_time = time.time() - self.pause_time
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self.timer.start(500)
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self.play_button.setIcon(QIcon(self.resource_path("file/pause.png")))
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self.is_playing = True
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except Exception as e:
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self.lyrics_browser.setText("恢复播放错误: " + str(e))
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def pause_music(self):
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if self.is_playing:
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self.pause_time = time.time() - self.start_time
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pygame.mixer.music.pause()
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self.timer.stop()
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self.play_button.setIcon(QIcon(self.resource_path("file/play.png")))
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self.is_playing = False
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def seek_music(self):
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if self.music_length > 0:
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new_time = self.slider.value() / 100 * self.music_length
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pygame.mixer.music.play(start=new_time)
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self.start_time = time.time() - new_time
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self.pause_time = new_time
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self.current_lyric_index = self.find_lyric_index(new_time)
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self.update_lyrics_display()
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self.timer.start(500)
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self.play_button.setIcon(QIcon(self.resource_path("file/pause.png")))
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self.is_playing = True
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def play_next_song(self):
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if self.playlist:
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self.current_song_index = (self.current_song_index + 1) % len(self.playlist)
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self.load_current_song_resources()
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self.play_music()
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def play_previous_song(self):
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if self.playlist:
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self.current_song_index = (self.current_song_index - 1) % len(self.playlist)
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self.load_current_song_resources()
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self.play_music()
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def find_lyric_index(self, current_time):
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for i, (timestamp, _) in enumerate(self.lyrics):
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if current_time < timestamp:
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return max(i - 1, 0)
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return len(self.lyrics) - 1
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def update_lyrics_display(self):
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if not self.lyrics:
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self.lyrics_browser.setText("歌词为空")
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return
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if self.current_lyric_index < len(self.lyrics):
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_, lyric = self.lyrics[self.current_lyric_index]
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if self.last_lyric != lyric:
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self.last_lyric = lyric
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if self.lyrics_browser.fontMetrics().horizontalAdvance(lyric) > self.lyrics_container.width():
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self.scroll_lyrics(lyric)
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else:
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if self.animation is not None:
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self.animation.stop()
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self.animation = None
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self.lyrics_browser.setText(lyric)
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self.lyrics_browser.adjustSize()
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self.lyrics_browser.move((self.lyrics_container.width() - self.lyrics_browser.width()) // 2, 0)
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def scroll_lyrics(self, lyric):
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self.lyrics_browser.setText(lyric)
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self.lyrics_browser.adjustSize()
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label_width = self.lyrics_browser.width()
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container_width = self.lyrics_container.width()
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start_pos = QPoint(50, 0)
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end_pos = QPoint(-label_width, 0)
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if self.animation is not None:
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self.animation.stop()
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self.animation = QPropertyAnimation(self.lyrics_browser, b"pos")
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duration = 8000 + (label_width - container_width) * 20
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self.animation.setDuration(duration)
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self.animation.setStartValue(start_pos)
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self.animation.setEndValue(end_pos)
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self.animation.start()
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def update_lyrics_and_progress(self):
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elapsed_time = time.time() - self.start_time
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self.current_lyric_index = self.find_lyric_index(elapsed_time)
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self.update_lyrics_display()
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if self.music_length > 0:
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progress = int((elapsed_time / self.music_length) * 100)
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self.slider.setValue(progress)
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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player = MusicPlayer()
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player.show()
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sys.exit(app.exec())
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