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# -*- mode:python; tab-width:4; indent-tabs-mode:t; -*-
# textarea.py
#
# Class to show, save, submit text entries
#
# W.Burnside <wburnsid@u.washington.edu>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os, time
from path import path
import pygtk
import gtk
import logging
import subprocess
from sugar.activity import activity
import pygst
pygst.require("0.10")
import gst
class TextArea(gtk.HBox):
# Constructor
def __init__(self, deck):
gtk.HBox.__init__(self)
self.__logger = logging.getLogger('TextArea')
self.__deck = deck
self.__text_area = gtk.Entry()
self.render_text_area()
self.__record=False
self.__play=False
self.__deck.connect('slide-redraw', self.update_text)
self.__text_area.connect('changed', self.text_changed)
self.__logger.debug("Constructed")
"""
#initialize audio record pipeline
player = gst.Pipeline("player")
#source = gst.element_factory_make("alsasrc", "alsa-source")
source = gst.element_factory_make("filesrc", "file-source")
player.add(source)
parse = gst.element_factory_make("wavparse", "parser")
player.add(parse)
convert = gst.element_factory_make("audioconvert", "converter")
player.add(convert)
enc = gst.element_factory_make("vorbisenc", "vorbis-encoder")
player.add(enc)
create = gst.element_factory_make("oggmux", "ogg-create")
player.add(create)
fileout = gst.element_factory_make("filesink", "sink")
player.add(fileout)
gst.element_link_many(source, parse, convert, enc, create, fileout)
self.__player = player
self.__source = source
self.__fileout = fileout
"""
def update_text(self, widget):
selfink, text = self.__deck.getSelfInkOrSubmission()
self.__text_area.set_text(text)
if self.__deck.getActiveSubmission() == -1 and not self.__deck.getIsInitiating():
self.__text_area.set_sensitive(True)
else:
self.__text_area.set_sensitive(False)
def text_changed(self, entry):
if self.__deck.getActiveSubmission() == -1:
self.__deck.setSlideText(self.__text_area.get_text())
def render_text_area(self, widget=None):
# pack widgets
self.pack_start(self.create_bbox(title="Audio Controls"), False, False, 0)
self.pack_start(self.__text_area, True, True, 0)
# show widgets
self.__text_area.show()
self.show()
# Clear text in entry box
def clear_text(self, widget, event):
self.__text_area.set_text("")
# Start Recording
def record(self, params):
if self.__record:
#we are recording, stop and save clip
subprocess.call("killall -q arecord", shell=True)
#convert to ogg file
pipeline = "filesrc location=/tmp/temp.wav ! wavparse ! audioconvert ! vorbisenc ! oggmux ! filesink location=" + self.__audiofile
print 'pipeline', pipeline
subprocess.call("gst-launch-0.10 " + pipeline, shell=True)
#self.__player.set_state(gst.STATE_PLAYING)
#time.sleep(10)
#self.__player.set_state(gst.STATE_NULL)
self.__record = False
self.__deck.setSlideClip(self.__audiofile, n = self.__deck.getIndex())
self.__deck.save()
self.__deck.reload()
#reset mic boost (xo)
subprocess.call("amixer cset numid=11 off", shell = True)
print 'recording stopped'
else:
self.__record = True
#what is name of clip? If it exists, rm it
self.__audiofile = self.__deck.getSlideClip()
if path(self.__audiofile).exists():
subprocess.call("rm -rf " + str(self.__audiofile), shell=True)
else:
self.__audiofile = path(self.__deck.getDeckPath()) / 'slide' + str(self.__deck.getIndex()) + '.ogg'
#turn on mic boost (xo)
print 'turn on mic boost'
subprocess.call("amixer cset numid=11 on", shell=True)
print 'record clip:', self.__audiofile
#self.__fileout.set_property("location", self.__audiofile)
#self.__source.set_property("location", "/tmp/temp.wav")
#self.__player.set_state(gst.STATE_PLAYING)
print 'recording started'
subprocess.call("arecord -f cd -d 10 /tmp/temp.wav", shell=True)
# Play Audio Clip
def play(self, params):
if self.__play:
#we are playing and need to stop
subprocess.call("killall -q gst-launch-0.10", shell=True)
self.__play = False
else:
#play clip
self.__deck.save()
clip = self.__deck.getSlideClip()
#clip = "/home/olpc/Activities/ShowNTell.activity/resources/test.ogg"
print 'play clip:', clip
if clip:
self.__play = True
subprocess.call("gst-launch-0.10 filesrc location=" + clip + " ! decodebin ! audioconvert ! alsasink", shell = True)
self.__play = False
# Create buttons for audio controls
def create_bbox(self, title=None, spacing=0, layout=gtk.BUTTONBOX_SPREAD):
frame = gtk.Frame(title)
bbox = gtk.HButtonBox()
bbox.set_border_width(5)
bbox.set_layout(layout)
bbox.set_spacing(spacing)
button = gtk.Button(stock='gtk-media-record')
button.connect("clicked", self.record)
bbox.pack_start(button, False, False, 0)
button = gtk.Button(stock='gtk-media-play')
button.connect("clicked", self.play)
bbox.pack_start(button, False, False, 0)
frame.add(bbox)
return frame
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