gui.py

   1 #!/usr/bin/env python
   2 #
   3 # This file is part of jack_mixer
   4 #
   5 # Copyright (C) 2006 Nedko Arnaudov <nedko@arnaudov.name>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; version 2 of the License
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19
  20 import gtk
  21 import gobject
  22
  23 try:
  24     import gconf
  25 except:
  26     print "Cannot load Python bindings for GConf, your preferences will not be preserved across jack_mixer invocations"
  27     gconf = None
  28
  29 def lookup_scale(scales, scale_id):
  30     for scale in scales:
  31         if scale_id == scale.scale_id:
  32             return scale
  33     return None
  34
  35 class factory(gobject.GObject):
  36     def __init__(self, topwindow, meter_scales, slider_scales):
  37         gobject.GObject.__init__(self)
  38         self.topwindow = topwindow
  39         self.meter_scales = meter_scales
  40         self.slider_scales = slider_scales
  41
  42         if gconf:
  43             self.gconf_client = gconf.client_get_default()
  44
  45             scale_id = self.gconf_client.get_string("/apps/jack_mixer/default_meter_scale")
  46             self.default_meter_scale = lookup_scale(meter_scales, scale_id)
  47             if not self.default_meter_scale:
  48                 self.default_meter_scale = meter_scales[0]
  49
  50             scale_id = self.gconf_client.get_string("/apps/jack_mixer/default_slider_scale")
  51             self.default_slider_scale = lookup_scale(slider_scales, scale_id)
  52             if not self.default_slider_scale:
  53                 self.default_slider_scale = slider_scales[0]
  54
  55             self.vumeter_color_scheme = self.gconf_client.get_string(
  56                             '/apps/jack_mixer/vumeter_color_scheme')
  57             self.vumeter_color = self.gconf_client.get_string(
  58                             '/apps/jack_mixer/vumeter_color')
  59             if not self.vumeter_color:
  60                 self.vumeter_color = '#ccb300'
  61
  62             self.use_custom_widgets = self.gconf_client.get_bool(
  63                             '/apps/jack_mixer/use_custom_widgets')
  64
  65             self.gconf_client.add_dir("/apps/jack_mixer", gconf.CLIENT_PRELOAD_NONE)
  66             self.gconf_client.notify_add("/apps/jack_mixer/default_meter_scale", self.on_gconf_default_meter_scale_changed)
  67             self.gconf_client.notify_add("/apps/jack_mixer/default_slider_scale", self.on_gconf_default_slider_scale_changed)
  68             self.gconf_client.notify_add('/apps/jack_mixer/vumeter_color',
  69                             self.on_gconf_vumeter_color_change)
  70             self.gconf_client.notify_add('/apps/jack_mixer/vumeter_color_scheme',
  71                             self.on_gconf_vumeter_color_scheme_change)
  72             self.gconf_client.notify_add('/apps/jack_mixer/use_custom_widgets',
  73                             self.on_gconf_use_custom_widgets_change)
  74         else:
  75             self.default_meter_scale = meter_scales[0]
  76             self.default_slider_scale = slider_scales[0]
  77             self.vumeter_color = '#ccb300'
  78             self.vumeter_color_scheme = 'default'
  79             self.use_custom_widgets = False
  80
  81     def on_gconf_default_meter_scale_changed(self, client, connection_id, entry, args):
  82         #print "GConf default_meter_scale changed"
  83         scale_id = entry.get_value().get_string()
  84         scale = lookup_scale(self.meter_scales, scale_id)
  85         self.set_default_meter_scale(scale, from_gconf=True)
  86
  87     def set_default_meter_scale(self, scale, from_gconf=False):
  88         if scale:
  89             if gconf and not from_gconf:
  90                 self.gconf_client.set_string("/apps/jack_mixer/default_meter_scale", scale.scale_id)
  91             else:
  92                 self.default_meter_scale = scale
  93                 self.emit("default-meter-scale-changed", self.default_meter_scale)
  94         else:
  95             print "Ignoring GConf default_meter_scale setting, because \"%s\" scale is not known" % scale_id
  96
  97     def on_gconf_default_slider_scale_changed(self, client, connection_id, entry, args):
  98         #print "GConf default_slider_scale changed"
  99         scale_id = entry.get_value().get_string()
 100         scale = lookup_scale(self.slider_scales, scale_id)
 101         self.set_default_slider_scale(scale, from_gconf=True)
 102
 103     def set_default_slider_scale(self, scale, from_gconf=False):
 104         if scale:
 105             if gconf and not from_gconf:
 106                 self.gconf_client.set_string("/apps/jack_mixer/default_slider_scale", scale.scale_id)
 107             else:
 108                 self.default_slider_scale = scale
 109                 self.emit("default-slider-scale-changed", self.default_slider_scale)
 110         else:
 111             print "Ignoring GConf default_slider_scale setting, because \"%s\" scale is not known" % scale_id
 112
 113     def set_vumeter_color(self, color, from_gconf=False):
 114         if gconf and not from_gconf:
 115             self.gconf_client.set_string('/apps/jack_mixer/vumeter_color', color)
 116         else:
 117             self.vumeter_color = color
 118             self.emit('vumeter-color-changed', self.vumeter_color)
 119
 120     def on_gconf_vumeter_color_change(self, client, connection_id, entry, args):
 121         color = entry.get_value().get_string()
 122         self.set_vumeter_color(color, from_gconf=True)
 123
 124     def set_vumeter_color_scheme(self, color_scheme, from_gconf=False):
 125         if gconf and not from_gconf:
 126             self.gconf_client.set_string('/apps/jack_mixer/vumeter_color_scheme', color_scheme)
 127         else:
 128             self.vumeter_color_scheme = color_scheme
 129             self.emit('vumeter-color-scheme-changed', self.vumeter_color_scheme)
 130
 131     def on_gconf_vumeter_color_scheme_change(self, client, connection_id, entry, args):
 132         color_scheme = entry.get_value().get_string()
 133         self.set_vumeter_color_scheme(color_scheme, from_gconf=True)
 134
 135     def set_use_custom_widgets(self, use_custom, from_gconf=False):
 136         if gconf and not from_gconf:
 137             self.gconf_client.set_bool('/apps/jack_mixer/use_custom_widgets', use_custom)
 138         else:
 139             self.use_custom_widgets = use_custom
 140             self.emit('use-custom-widgets-changed', self.use_custom_widgets)
 141
 142     def on_gconf_use_custom_widgets_change(self, client, connection_id, entry, args):
 143         use_custom = entry.get_value().get_bool()
 144         self.set_use_custom_widgets(use_custom, from_gconf=True)
 145
 146     def get_default_meter_scale(self):
 147         return self.default_meter_scale
 148
 149     def get_default_slider_scale(self):
 150         return self.default_slider_scale
 151
 152     def get_vumeter_color(self):
 153         return self.vumeter_color
 154
 155     def get_vumeter_color_scheme(self):
 156         return self.vumeter_color_scheme
 157
 158     def get_use_custom_widgets(self):
 159         return self.use_custom_widgets
 160
 161 gobject.signal_new("default-meter-scale-changed", factory, gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION, gobject.TYPE_NONE, [gobject.TYPE_PYOBJECT])
 162 gobject.signal_new("default-slider-scale-changed", factory, gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION, gobject.TYPE_NONE, [gobject.TYPE_PYOBJECT])
 163 gobject.signal_new('vumeter-color-changed', factory,
 164                 gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION,
 165                 gobject.TYPE_NONE, [str])
 166 gobject.signal_new('vumeter-color-scheme-changed', factory,
 167                 gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION,
 168                 gobject.TYPE_NONE, [str])
 169 gobject.signal_new('use-custom-widgets-changed', factory,
 170                 gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION,
 171                 gobject.TYPE_NONE, [bool])