gui.py

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