/usr/lib/pytone/mixerwin.py is in pytone 3.0.0-1+b4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2002 Jörg Lehmann <joerg@luga.de>
#
# This file is part of PyTone (http://www.luga.de/pytone/)
#
# PyTone is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# as published by the Free Software Foundation.
#
# PyTone is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with PyTone; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import errors
import re
import config
import events, hub
import log
import statusbar
import window
# two simple abstraction classes for the different mixer types from the oss
# and the ossaudiodev module, respectively.
class ossmixer:
def __init__(self, device, channel):
self.mixer = oss.open_mixer(device)
self.channel = channel
log.info(_("initialized oss mixer: device %s, channel %s") %
(device, channel))
def get(self):
return self.mixer.read_channel(self.channel)
def set(self, level):
self.mixer.write_channel(self.channel, level)
class ossaudiodevmixer:
def __init__(self, device, channel):
self.mixer = oss.openmixer(device)
self.channel = channel
log.info(_("initialized oss mixer: device %s, channel %s") %
(device, channel))
def get(self):
return self.mixer.get(self.channel)
def set(self, level):
self.mixer.set(self.channel, level)
# determine oss module to be used, if any present
try:
import ossaudiodev as oss
mixer = ossaudiodevmixer
except:
try:
import oss
mixer = ossmixer
except:
mixer = None
class mixerwin(window.window):
def __init__(self, screen, maxh, maxw, channel):
self.channel = channel
self.mixer_device = config.mixer.device
self.stepsize = config.mixer.stepsize
channelre = re.compile("SOUND_MIXER_[a-zA-Z0-9]")
if channelre.match(config.mixer.channel):
self.mixer_channel = eval("oss.%s" % config.mixer.channel)
else:
raise errors.configurationerror("Wrong mixer channel specification: %s" % config.mixer.channel)
self.mixer = mixer(self.mixer_device, self.mixer_channel)
self.level = self.mixer.get()
self.keybindings = config.keybindings.general
# for identification purposes, we only generate this once
self.hidewindowevent = events.hidewindow(self)
self.hide()
self.channel.subscribe(events.keypressed, self.keypressed)
self.channel.subscribe(events.mouseevent, self.mouseevent)
self.channel.subscribe(events.hidewindow, self.hidewindow)
self.channel.subscribe(events.focuschanged, self.focuschanged)
def changevolume(self, change):
oldlevel = self.mixer.get()
self.level= ( max(0, min(oldlevel[0]+change, 100)),
max(0, min(oldlevel[1]+change, 100)) )
self.mixer.set(self.level)
# event handler
def keypressed(self, event):
key = event.key
if key in self.keybindings["volumeup"]:
self.changevolume(self.stepsize)
elif key in self.keybindings["volumedown"]:
self.changevolume(-self.stepsize)
else:
if self.hasfocus():
self.hide()
raise hub.TerminateEventProcessing
return
self.update()
if config.mixerwindow.autoclosetime:
hub.notify(events.sendeventin(self.hidewindowevent,
config.mixerwindow.autoclosetime,
replace=1))
raise hub.TerminateEventProcessing
def mouseevent(self, event):
if self.hasfocus():
self.hide()
raise hub.TerminateEventProcessing
def focuschanged(self, event):
# we either have focus, or we disappear...
if not self.hasfocus():
self.hide()
else:
sbar = statusbar.generatedescription("general", "volumedown")
sbar += statusbar.separator
sbar += statusbar.generatedescription("general", "volumeup")
sbar += statusbar.terminate
hub.notify(events.statusbar_update(0, sbar))
def update(self):
self.top()
window.window.update(self)
self.addstr(self.iy, self.ix, _("Volume:"), self.colors.description)
self.addstr(" %3d " % self.level[0], self.colors.content)
percent = self.barlen*self.level[0]/100
self.addstr("#"*percent, self.colors.barhigh)
self.addstr("#"*(self.barlen-percent), self.colors.bar)
class popupmixerwin(mixerwin):
""" mixer which appears as a popup at the center of the screen """
def __init__(self, screen, maxh, maxw, channel):
# calculate size and position
self.barlen = 20
h = 3
w = len(_("Volume:")) + 7 + self.barlen
y = (maxh-h)/2
x = (maxw-w)/2
window.window.__init__(self,
screen, h, w, y, x,
config.colors.mixerwindow,
_("Mixer"))
mixerwin.__init__(self, screen, maxh, maxw, channel)
def resize(self, maxh, maxw):
h = 3
w = len(_("Volume:")) + 7 + self.barlen
y = (maxh-h)/2
x = (maxw-w)/2
window.window.resize(self, h, w, y, x)
class statusbarmixerwin(mixerwin):
""" mixer which appears in the statusbar """
def __init__(self, screen, maxh, maxw, channel):
# calculate size and position
self.barlen = max(0, maxw - len(_("Volume:")) - 5)
window.window.__init__(self,
screen, 1, maxw, maxh-1, 0, config.colors.mixerwindow)
mixerwin.__init__(self, screen, maxh, maxw, channel)
def resize(self, maxh, maxw):
window.window.resize(self, 1, maxw, maxh-1, 0)
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