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calculate-utils-3-install/pym/install/variables/audio.py

127 lines
3.6 KiB

# -*- coding: utf-8 -*-
# Copyright 2008-2016 Mir Calculate. http://www.calculate-linux.org
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
import re
from calculate.lib.datavars import (Variable, ReadonlyVariable,
ReadonlyTableVariable, FieldValue,
HumanReadable)
from calculate.lib.utils.files import readFile
from calculate.lib.cl_lang import setLocalTranslate, _
setLocalTranslate('cl_install3', sys.modules[__name__])
class VariableOsAudioData(ReadonlyTableVariable):
"""
Information about audio cards
"""
source = ['os_audio_id',
'os_audio_name']
def get(self, hr=HumanReadable.No):
data = readFile('/proc/asound/cards')
cards = re.findall('^\s*(\d+).*\n\s+(\S.*) at .*$', data, re.M)
if cards:
return map(list, cards)
else:
return [[]]
setValue = Variable.setValue
class VariableOsAudioId(FieldValue, ReadonlyVariable):
"""
Order Id of audio card
"""
type = "list"
source_variable = "os_audio_data"
column = 0
class VariableOsAudioName(FieldValue, ReadonlyVariable):
"""
Name of audio card
"""
type = "list"
source_variable = "os_audio_data"
column = 1
class VariableOsAudioDefaultSet(ReadonlyVariable):
"""
Force write in config 0
"""
type = "bool"
def get(self):
res = self.Select('os_audio_id', where='os_audio_name',
notlike='HDMI', limit=1)
audio_default = self.Get('os_audio_default')
if (audio_default != '0' or
res and res != "0" and audio_default == '0' or
audio_default != self.Get('os_audio_current')):
return 'on'
return 'off'
class VariableOsAudioCurrent(ReadonlyVariable):
"""
Current default audio card
"""
def get(self):
default_card_re = re.compile('defaults.ctl.card\s+(\d+)')
entry = default_card_re.search(readFile('/etc/asound.conf'))
if entry and entry.groups()[0] in self.Get('os_audio_id'):
return entry.groups()[0]
res = self.Select('os_audio_id', where='os_audio_name',
notlike='HDMI', limit=1)
return res or '0'
class VariableOsAudioDefault(Variable):
"""
Current default audio card
"""
type = "choice"
opt = ['--audio']
def init(self):
self.label = _("Default audio card")
self.help = _("set the default audio")
def get(self):
return self.Get('os_audio_current')
def choice(self):
data = self.Get('os_audio_data')
if data and data[0]:
return self.Get('os_audio_data')
return []
def uncompatible(self):
"""
Audio setting up unavailable for flash installation
"""
if self.Get('os_install_root_type') == 'flash':
return _("Audio configuration unavailable for Flash install")
if self.Get('os_install_alsa_set') == 'off':
return \
_("This distribution does not provide the ALSA sound")
return ""