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__pycache__	[ DIR ]	drwxr-xr-x
scripts	[ DIR ]	drwxr-xr-x
acss.py	3.49 KB	-rw-r--r--
bookmarks.py	8.37 KB	-rw-r--r--
braille_generator.py	21 KB	-rw-r--r--
braille.py	70.54 KB	-rw-r--r--
braille_rolenames.py	10.33 KB	-rw-r--r--
brlmon.py	6.45 KB	-rw-r--r--
brltablenames.py	7.3 KB	-rw-r--r--
caret_navigation.py	13.66 KB	-rw-r--r--
chat.py	33.71 KB	-rw-r--r--
chnames.py	23.03 KB	-rw-r--r--
cmdnames.py	55.23 KB	-rw-r--r--
colornames.py	38.13 KB	-rw-r--r--
common_keyboardmap.py	6.64 KB	-rw-r--r--
debug.py	17.79 KB	-rw-r--r--
desktop_keyboardmap.py	4.62 KB	-rw-r--r--
event_manager.py	41.45 KB	-rw-r--r--
eventsynthesizer.py	18.13 KB	-rw-r--r--
find.py	12.77 KB	-rw-r--r--
flat_review.py	48.16 KB	-rw-r--r--
formatting.py	55.22 KB	-rw-r--r--
generator.py	60.81 KB	-rw-r--r--
guilabels.py	46.35 KB	-rw-r--r--
__init__.py	115 B	-rw-r--r--
input_event.py	40.29 KB	-rw-r--r--
keybindings.py	17.82 KB	-rw-r--r--
keynames.py	9.71 KB	-rw-r--r--
label_inference.py	21.29 KB	-rw-r--r--
laptop_keyboardmap.py	4.61 KB	-rw-r--r--
liveregions.py	21.77 KB	-rw-r--r--
logger.py	1.97 KB	-rw-r--r--
mathsymbols.py	88.14 KB	-rw-r--r--
messages.py	141.35 KB	-rw-r--r--
mouse_review.py	21.57 KB	-rw-r--r--
notification_messages.py	6.18 KB	-rw-r--r--
object_properties.py	33.38 KB	-rw-r--r--
orca_gtkbuilder.py	5.35 KB	-rw-r--r--
orca_gui_commandlist.py	4.19 KB	-rw-r--r--
orca_gui_find.py	8.12 KB	-rw-r--r--
orca_gui_navlist.py	6.66 KB	-rw-r--r--
orca_gui_prefs.py	139.1 KB	-rw-r--r--
orca_gui_profile.py	4.06 KB	-rw-r--r--
orca_i18n.py	3.18 KB	-rw-r--r--
orca_platform.py	1.44 KB	-rw-r--r--
orca.py	27.86 KB	-rw-r--r--
orca_state.py	2.4 KB	-rw-r--r--
phonnames.py	2.76 KB	-rw-r--r--
pronunciation_dict.py	2.61 KB	-rw-r--r--
punctuation_settings.py	13.64 KB	-rw-r--r--
script_manager.py	14.37 KB	-rw-r--r--
script.py	19.04 KB	-rw-r--r--
script_utilities.py	201.5 KB	-rw-r--r--
settings_manager.py	24.55 KB	-rw-r--r--
settings.py	12.88 KB	-rw-r--r--
sound_generator.py	11.99 KB	-rw-r--r--
sound.py	5.47 KB	-rw-r--r--
speechdispatcherfactory.py	26.19 KB	-rw-r--r--
speech_generator.py	113.82 KB	-rw-r--r--
speech.py	10.22 KB	-rw-r--r--
speechserver.py	6.92 KB	-rw-r--r--
spellcheck.py	10.07 KB	-rw-r--r--
structural_navigation.py	124.25 KB	-rw-r--r--
text_attribute_names.py	28.62 KB	-rw-r--r--
tutorialgenerator.py	30.41 KB	-rw-r--r--

Code Editor : sound.py

# Orca
#
# Copyright 2016 Orca Team.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., Franklin Street, Fifth Floor,
# Boston MA  02110-1301 USA.

"""Utilities for playing sounds."""

__id__        = "$Id:$"
__version__   = "$Revision:$"
__date__      = "$Date:$"
__copyright__ = "Copyright (c) 2016 Orca Team"
__license__   = "LGPL"

import gi
from gi.repository import GLib

try:
    gi.require_version('Gst', '1.0')
    from gi.repository import Gst
except:
    _gstreamerAvailable = False
else:
    _gstreamerAvailable, args = Gst.init_check(None)

from . import debug
from .sound_generator import Icon, Tone

class Player:
    """Plays Icons and Tones."""

def __init__(self):
        self._initialized = False
        self._source = None
        self._sink = None
        self._player = None
        self._pipeline = None

if not _gstreamerAvailable:
            msg = 'SOUND ERROR: Gstreamer is not available'
            debug.println(debug.LEVEL_INFO, msg, True)
            return

self.init()

def _onPlayerMessage(self, bus, message):
        if message.type == Gst.MessageType.EOS:
            self._player.set_state(Gst.State.NULL)
        elif message.type == Gst.MessageType.ERROR:
            self._player.set_state(Gst.State.NULL)
            error, info = message.parse_error()
            msg = 'SOUND ERROR: %s' % error
            debug.println(debug.LEVEL_INFO, msg, True)

def _onPipelineMessage(self, bus, message):
        if message.type == Gst.MessageType.EOS:
            self._pipeline.set_state(Gst.State.NULL)
        elif message.type == Gst.MessageType.ERROR:
            self._pipeline.set_state(Gst.State.NULL)
            error, info = message.parse_error()
            msg = 'SOUND ERROR: %s' % error
            debug.println(debug.LEVEL_INFO, msg, True)

def _onTimeout(self, element):
        element.set_state(Gst.State.NULL)
        return False

def _playIcon(self, icon, interrupt=True):
        """Plays a sound icon, interrupting the current play first unless specified."""

if interrupt:
            self._player.set_state(Gst.State.NULL)

self._player.set_property('uri', 'file://%s' % icon.path)
        self._player.set_state(Gst.State.PLAYING)

def _playTone(self, tone, interrupt=True):
        """Plays a tone, interrupting the current play first unless specified."""

if interrupt:
            self._pipeline.set_state(Gst.State.NULL)

self._source.set_property('volume', tone.volume)
        self._source.set_property('freq', tone.frequency)
        self._source.set_property('wave', tone.wave)
        self._pipeline.set_state(Gst.State.PLAYING)
        duration = int(1000 * tone.duration)
        GLib.timeout_add(duration, self._onTimeout, self._pipeline)

def init(self):
        """(Re)Initializes the Player."""

if self._initialized:
            return

if not _gstreamerAvailable:
            return

self._player = Gst.ElementFactory.make('playbin', 'player')
        if self._player is None:
            msg = 'SOUND ERROR: Gstreamer is available, but player is None'
            debug.println(debug.LEVEL_INFO, msg, True)
            return

bus = self._player.get_bus()
        bus.add_signal_watch()
        bus.connect("message", self._onPlayerMessage)

self._pipeline = Gst.Pipeline(name='orca-pipeline')
        bus = self._pipeline.get_bus()
        bus.add_signal_watch()
        bus.connect("message", self._onPipelineMessage)

self._source = Gst.ElementFactory.make('audiotestsrc', 'src')
        self._sink = Gst.ElementFactory.make('autoaudiosink', 'output')
        if self._source is None or self._sink is None:
            return

self._pipeline.add(self._source)
        self._pipeline.add(self._sink)
        self._source.link(self._sink)

self._initialized = True

def play(self, item, interrupt=True):
        """Plays a sound, interrupting the current play first unless specified."""

if isinstance(item, Icon):
            self._playIcon(item, interrupt)
        elif isinstance(item, Tone):
            self._playTone(item, interrupt)
        else:
            msg = 'SOUND ERROR: %s is not an Icon or Tone' % item
            debug.println(debug.LEVEL_INFO, msg, True)

def stop(self, element=None):
        """Stops play."""

if not _gstreamerAvailable:
            return

if element:
            element.set_state(Gst.State.NULL)
            return

if self._player:
            self._player.set_state(Gst.State.NULL)

if self._pipeline:
            self._pipeline.set_state(Gst.State.NULL)

def shutdown(self):
        """Shuts down the sound utilities."""

global _gstreamerAvailable
        if not _gstreamerAvailable:
            return

self.stop()
        self._initialized = False
        _gstreamerAvailable = False

_player = Player()

def getPlayer():
    return _player

${this.title}

Code Editor : sound.py