forked from s444417/ProjektAI
141 lines
4.5 KiB
Python
141 lines
4.5 KiB
Python
#!/usr/bin/env python
|
|
|
|
"""A simple music player.
|
|
|
|
Use pygame.mixer.music to play an audio file. A window is
|
|
created to handle keyboard events for playback commands.
|
|
|
|
"""
|
|
|
|
from __future__ import print_function
|
|
import pygame
|
|
import pygame.freetype
|
|
from pygame.locals import *
|
|
import sys
|
|
import os
|
|
|
|
class Window(object):
|
|
"""The application's Pygame window
|
|
|
|
A Window instance manages the creation of and drawing to a
|
|
window. It is a singleton class. Only one instance can exist.
|
|
|
|
"""
|
|
|
|
instance = None
|
|
|
|
def __new__(cls, *args, **kwds):
|
|
"""Return an open Pygame window"""
|
|
|
|
if Window.instance is not None:
|
|
return Window.instance
|
|
self = object.__new__(cls)
|
|
pygame.display.init()
|
|
self.screen = pygame.display.set_mode((600, 400))
|
|
Window.instance = self
|
|
return self
|
|
|
|
def __init__(self, title):
|
|
pygame.display.set_caption(title)
|
|
self.screen.fill(Color('white'))
|
|
pygame.display.flip()
|
|
|
|
pygame.freetype.init()
|
|
self.font = pygame.freetype.Font(None, 20)
|
|
self.font.origin = True
|
|
self.ascender = int(self.font.get_sized_ascender() * 1.5)
|
|
self.descender = int(self.font.get_sized_descender() * 1.5)
|
|
self.line_height = self.ascender - self.descender
|
|
|
|
self.write_lines("'q', ESCAPE or close this window to quit\n"
|
|
"SPACE to play/pause\n"
|
|
"'r' to rewind\n"
|
|
"'f' to faid out over 5 seconds\n", 0)
|
|
|
|
def __enter__(self):
|
|
return self
|
|
|
|
def __exit__(self, exc_type, exc_val, exc_tb):
|
|
self.close()
|
|
return False
|
|
|
|
def close(self):
|
|
pygame.display.quit()
|
|
Window.instance = None
|
|
|
|
def write_lines(self, text, line=0):
|
|
w, h = self.screen.get_size()
|
|
line_height = self.line_height
|
|
nlines = h // line_height
|
|
if line < 0:
|
|
line = nlines + line
|
|
for i, text_line in enumerate(text.split('\n'), line):
|
|
y = i * line_height + self.ascender
|
|
# Clear the line first.
|
|
self.screen.fill(Color('white'),
|
|
(0, i * line_height, w, line_height))
|
|
|
|
# Write new text.
|
|
self.font.render_to(self.screen, (15, y), text_line, Color('blue'))
|
|
pygame.display.flip()
|
|
|
|
|
|
def show_usage_message():
|
|
print("Usage: python playmus.py <file>")
|
|
print(" python -m pygame.examples.playmus <file>")
|
|
|
|
def main(file_path):
|
|
"""Play an audio file with pygame.mixer.music"""
|
|
|
|
with Window(file_path) as win:
|
|
win.write_lines('Loading ...', -1)
|
|
pygame.mixer.init(frequency=44100)
|
|
try:
|
|
paused = False
|
|
pygame.mixer.music.load(file_path)
|
|
|
|
# Make sure the event loop ticks over at least every 0.5 seconds.
|
|
pygame.time.set_timer(USEREVENT, 500)
|
|
|
|
pygame.mixer.music.play()
|
|
win.write_lines("Playing ...\n", -1)
|
|
|
|
while pygame.mixer.music.get_busy():
|
|
e = pygame.event.wait()
|
|
if e.type == pygame.KEYDOWN:
|
|
key = e.key
|
|
if key == K_SPACE:
|
|
if paused:
|
|
pygame.mixer.music.unpause()
|
|
paused = False
|
|
win.write_lines("Playing ...\n", -1)
|
|
else:
|
|
pygame.mixer.music.pause()
|
|
paused = True
|
|
win.write_lines("Paused ...\n", -1)
|
|
elif key == K_r:
|
|
pygame.mixer.music.rewind()
|
|
if paused:
|
|
win.write_lines("Rewound.", -1)
|
|
elif key == K_f:
|
|
win.write_lines("Faiding out ...\n", -1)
|
|
pygame.mixer.music.fadeout(5000)
|
|
# when finished get_busy() will return 0.
|
|
elif key in [K_q, K_ESCAPE]:
|
|
pygame.mixer.music.stop()
|
|
# get_busy() will now return 0.
|
|
elif e.type == QUIT:
|
|
pygame.mixer.music.stop()
|
|
# get_busy() will now return 0.
|
|
pygame.time.set_timer(USEREVENT, 0)
|
|
finally:
|
|
pygame.mixer.quit()
|
|
|
|
if __name__ == '__main__':
|
|
# Check the only command line argument, a file path
|
|
if len(sys.argv) != 2:
|
|
show_usage_message()
|
|
else:
|
|
main(sys.argv[1])
|
|
|