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custom widgets and classes

sound_panel.py

from tkinter import * An initializer method comes first. Note that this method has to be
called “__init__()” in Python in order to be called automatically
import pygame.mixer
when the object is created.
class SoundPanel(Frame):
def __init__(self, app, mixer, sound_file):
Frame.__init__(self, app)
self.track = mixer.Sound(sound_file)
self.track_playing = IntVar()
track_button = Checkbutton(self, variable = self.track_playing,
command = self.track_toggle, text = sound_file)
track_button.pack(side = LEFT)
self.volume = DoubleVar()
self.volume.set(self.track.get_volume())
volume_scale = Scale(self, variable = self.volume, from_ = 0.0, to = 1.0,
resolution = 0.1, command = self.change_volume,
label = "Volume", orient = HORIZONTAL)
volume_scale.pack(side = RIGHT)

def track_toggle(self):
if self.track_playing.get() == 1:
self.track.play(loops = -1)
else:
self.track.stop()

def change_volume(self, v):
self.track.set_volume(self.volume.get())

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