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#! /usr/bin/python
#
# Author: Arjun Sarwal arjun@laptop.org
# Copyright (C) 2007, Arjun Sarwal
# Copyright (C) 2009,10 Walter Bender
#
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
import gtk
from gettext import gettext as _
from sugar.graphics.toolbutton import ToolButton
class SideToolbar(gtk.Toolbar):
""" A toolbar on the side of the canvas for adjusting gain/bias """
LOWER = 0.0
UPPER = 4.0
def __init__(self, activity):
""" Set up initial toolbars """
gtk.Toolbar.__init__(self)
self.activity = activity
self.show_toolbar = True
self.mode = 'sound'
self.mode_values = {'sound': 3, 'sensor': 2}
self.button_up = ToolButton('amp-high')
self.button_up.set_tooltip(_('Increase amplitude'))
self.button_up.connect('clicked', self._button_up_cb)
self.button_up.show()
self.adjustmenty = gtk.Adjustment(self.mode_values[self.mode],
self.LOWER, self.UPPER,
0.1, 0.1, 0.0)
self.adjustmenty.connect("value_changed", self._yscrollbar_cb,
self.adjustmenty)
self.yscrollbar = gtk.VScale(self.adjustmenty)
self.yscrollbar.set_draw_value(False)
self.yscrollbar.set_inverted(True)
self.yscrollbar.set_update_policy(gtk.UPDATE_CONTINUOUS)
self.button_down = ToolButton('amp-low')
self.button_down.set_tooltip(_('Decrease amplitude'))
self.button_down.connect('clicked', self._button_down_cb)
self.button_down.show()
self.box1 = gtk.VBox(False, 0)
self.box1.pack_start(self.button_up, False, True, 0)
self.box1.pack_start(self.yscrollbar, True, True, 0)
self.box1.pack_start(self.button_down, False, True, 0)
self.set_show_hide(False)
def _yscrollbar_cb(self, adjy, data=None):
""" Callback for scrollbar """
if self.mode == 'sound':
print "toolbar side: setting mag to 1.0, %f" % (adjy.value)
self.activity.wave.set_mag_params(1.0, adjy.value)
print "toolbar side: setting capture gain to %f" %\
(adjy.value * 100 / (self.UPPER - self.LOWER))
self.activity.audiograb.set_capture_gain(
adjy.value * 100 / (self.UPPER - self.LOWER))
self.activity.wave.set_bias_param(0)
elif self.mode == 'sensor':
print "toolbar side: setting bias param to %f" %\
(300 * (adjy.value - (self.UPPER - self.LOWER) / 2))
self.activity.wave.set_bias_param(int(
300 * (adjy.value - (self.UPPER - self.LOWER) / 2)))
self.mode_values[self.mode] = adjy.value
return True
def _button_up_cb(self, data=None):
"""Moves slider up"""
new_value = self.yscrollbar.get_value() + (self.UPPER - self.LOWER)\
/ 100.0
if new_value <= self.UPPER:
self.yscrollbar.set_value(new_value)
else:
self.yscrollbar.set_value(self.UPPER)
return True
def _button_down_cb(self, data=None):
"""Moves slider down"""
new_value = self.yscrollbar.get_value() - (self.UPPER - self.LOWER)\
/ 100.0
if new_value >= self.LOWER:
self.yscrollbar.set_value(new_value)
else:
self.yscrollbar.set_value(self.LOWER)
return True
def set_show_hide(self, show=True, mode='sound'):
""" Show or hide the toolbar """
self.show_toolbar = show
self.set_mode(mode)
def set_mode(self, mode='sound'):
""" Set the toolbar to either 'sound' or 'sensor' """
self.mode = mode
if self.mode == 'sound':
self.button_up.set_icon('amp-high')
self.button_up.set_tooltip(_('Increase amplitude'))
self.button_down.set_icon('amp-low')
self.button_down.set_tooltip(_('Decrease amplitude'))
elif self.mode == 'sensor':
self.button_up.set_icon('bias-high')
self.button_up.set_tooltip(_('Increase bias'))
self.button_down.set_icon('bias-low')
self.button_down.set_tooltip(_('Decrease bias'))
self.yscrollbar.set_value(self.mode_values[self.mode])
return
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