jack_freewheel_button

   1 #!/usr/bin/python
   2
   3 # JACK FreeWheel button
   4 #
   5 # Copyright (C) 2010 Nikita Zlobin <cook60020tmp@mail.ru>
   6 #
   7 #*************************************************************************
   8 # This file implements dialogs that are not implemented in dedicated files
   9 #*************************************************************************
  10 #
  11 # LADI Session Handler is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 2 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # LADI Session Handler is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  23 # or write to the Free Software Foundation, Inc.,
  24 # 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  25
  26
  27 import glib
  28 import gtk
  29 import jack
  30
  31 fw_on = "<b>ON</b>"
  32 fw_off = "<b>OFF</b>"
  33 fw_slave = "<b>ON</b> <small>SLAVE</small>"
  34 text_generic = "<small>FREE WHEEL</small>"
  35
  36 jclient_name = "jack_freewheel_button"
  37
  38 def on_button_toggled(button):
  39   label = button.get_children()[0]
  40   if button.get_active():
  41     b_label.set_label(text_generic+"\n"+fw_on)
  42     jack.set_freewheel(1)
  43
  44     global blink_state
  45     blink_state = True
  46     button.modify_bg(gtk.STATE_NORMAL, backlight_bg)
  47     blink_toggle()
  48   else:
  49     button.modify_bg(gtk.STATE_NORMAL, normal_bg)
  50     b_label.modify_fg(gtk.STATE_NORMAL, normal_fg)
  51     b_label.set_label(text_generic+"\n"+fw_off)
  52
  53     button.set_sensitive(True)
  54     jack.set_freewheel(0)
  55
  56 def check_freewheel():
  57   if jack.get_freewheel() > 0:
  58     if button.get_active() == False:
  59       button.set_active(True)
  60       button.set_sensitive(False)
  61       b_label.set_label("<span foreground=\"darkorange\">"+text_generic+"\n"+fw_slave+"</span>")
  62   else:
  63     button.set_active(False)
  64     button.set_sensitive(True)
  65
  66   return True
  67
  68 def blink_toggle():
  69   if not button.get_active():
  70     return True
  71
  72   global blink_state
  73   if blink_state:
  74     button.modify_bg(gtk.STATE_ACTIVE, normal_bg)
  75     button.modify_bg(gtk.STATE_PRELIGHT, normal_bg)
  76     b_label.modify_fg(gtk.STATE_NORMAL, normal_fg)
  77     b_label.modify_fg(gtk.STATE_ACTIVE, normal_fg)
  78     blink_state = False
  79   else:
  80     button.modify_bg(gtk.STATE_ACTIVE, backlight_bg)
  81     button.modify_bg(gtk.STATE_PRELIGHT, backlight_bg)
  82     b_label.modify_fg(gtk.STATE_NORMAL, backlight_fg)
  83     b_label.modify_fg(gtk.STATE_ACTIVE, backlight_fg)
  84     blink_state = True
  85   return True
  86
  87 # Create objects
  88 window = gtk.Window()
  89 window.set_title("JACK time wheel control")
  90 window.set_resizable(False)
  91 window.set_decorated(False)
  92
  93 button = gtk.ToggleButton()
  94 button.set_active(False)
  95 button.set_label(text_generic+"\n"+fw_off)
  96
  97 b_label = button.get_children()[0]
  98 b_label.set_justify(gtk.JUSTIFY_CENTER)
  99 b_label.set_use_markup(True)
 100
 101 blink_state = False
 102
 103 # Connections
 104 window.connect("delete-event", gtk.main_quit);
 105 button.connect("toggled", on_button_toggled);
 106 window.add(button)
 107
 108 # Colors
 109 b_style = button.get_modifier_style().copy()
 110 t_style = b_label.get_modifier_style().copy()
 111 normal_bg = b_style.bg[gtk.STATE_ACTIVE]
 112 normal_fg = t_style.fg[gtk.STATE_ACTIVE]
 113 backlight_bg = gtk.gdk.color_parse('brown')
 114 backlight_fg = gtk.gdk.color_parse('darkorange')
 115 button.modify_bg(gtk.STATE_INSENSITIVE, backlight_bg)
 116
 117 # JACK
 118 jack.attach(jclient_name)
 119 jack.activate()
 120 glib.timeout_add(300, check_freewheel)
 121 glib.timeout_add(700, blink_toggle)
 122
 123 window.show_all()
 124
 125 gtk.main()
 126
 127 jack.deactivate()
 128 jack.detach()