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, glade_xml, topwindow, meter_scales, slider_scales):
  37         gobject.GObject.__init__(self)
  38         self.glade_xml = glade_xml
  39         self.topwindow = topwindow
  40         self.meter_scales = meter_scales
  41         self.slider_scales = slider_scales
  42
  43         if gconf:
  44             self.gconf_client = gconf.client_get_default()
  45
  46             scale_id = self.gconf_client.get_string("/apps/jack_mixer/default_meter_scale")
  47             self.default_meter_scale = lookup_scale(meter_scales, scale_id)
  48             if not self.default_meter_scale:
  49                 self.default_meter_scale = meter_scales[0]
  50
  51             scale_id = self.gconf_client.get_string("/apps/jack_mixer/default_slider_scale")
  52             self.default_slider_scale = lookup_scale(slider_scales, scale_id)
  53             if not self.default_slider_scale:
  54                 self.default_slider_scale = slider_scales[0]
  55
  56             self.gconf_client.add_dir("/apps/jack_mixer", gconf.CLIENT_PRELOAD_NONE)
  57             self.gconf_client.notify_add("/apps/jack_mixer/default_meter_scale", self.on_gconf_default_meter_scale_changed)
  58             self.gconf_client.notify_add("/apps/jack_mixer/default_slider_scale", self.on_gconf_default_slider_scale_changed)
  59         else:
  60             self.default_meter_scale = meter_scales[0]
  61             self.default_slider_scale = slider_scales[0]
  62
  63     def on_gconf_default_meter_scale_changed(self, client, connection_id, entry, args):
  64         #print "GConf default_meter_scale changed"
  65         scale_id = entry.get_value().get_string()
  66         scale = lookup_scale(self.meter_scales, scale_id)
  67         self.set_default_meter_scale(scale, from_gconf=True)
  68
  69     def set_default_meter_scale(self, scale, from_gconf=False):
  70         if scale:
  71             if gconf and not from_gconf:
  72                 self.gconf_client.set_string("/apps/jack_mixer/default_meter_scale", scale.scale_id)
  73             else:
  74                 self.default_meter_scale = scale
  75                 self.emit("default-meter-scale-changed", self.default_meter_scale)
  76         else:
  77             print "Ignoring GConf default_meter_scale setting, because \"%s\" scale is not known" % scale_id
  78
  79     def on_gconf_default_slider_scale_changed(self, client, connection_id, entry, args):
  80         #print "GConf default_slider_scale changed"
  81         scale_id = entry.get_value().get_string()
  82         scale = lookup_scale(self.slider_scales, scale_id)
  83         self.set_default_slider_scale(scale, from_gconf=True)
  84
  85     def set_default_slider_scale(self, scale, from_gconf=False):
  86         if scale:
  87             if gconf and not from_gconf:
  88                 self.gconf_client.set_string("/apps/jack_mixer/default_slider_scale", scale.scale_id)
  89             else:
  90                 self.default_slider_scale = scale
  91                 self.emit("default-slider-scale-changed", self.default_slider_scale)
  92         else:
  93             print "Ignoring GConf default_slider_scale setting, because \"%s\" scale is not known" % scale_id
  94
  95     def run_dialog_add_channel(self):
  96         dialog = self.glade_xml.get_widget("dialog_add_channel")
  97         name_entry = self.glade_xml.get_widget("new_channel_name")
  98         name_entry.set_text("")
  99         dialog.set_transient_for(self.topwindow)
 100         dialog.show()
 101         ret = dialog.run()
 102         dialog.hide()
 103
 104         if ret == gtk.RESPONSE_OK:
 105             result = {
 106                 'name': name_entry.get_text(),
 107                 'stereo': self.glade_xml.get_widget("new_channel_stereo").get_active()
 108                 }
 109             return result
 110         else:
 111             return None
 112
 113     def run_dialog_rename_channel(self, name):
 114         dialog = self.glade_xml.get_widget("dialog_rename_channel")
 115         name_entry = self.glade_xml.get_widget("channel_name")
 116         name_entry.set_text(name)
 117         dialog.set_transient_for(self.topwindow)
 118         dialog.show()
 119         ret = dialog.run()
 120         dialog.hide()
 121         if ret == gtk.RESPONSE_OK:
 122             return name_entry.get_text()
 123         else:
 124             return None
 125
 126     def get_default_meter_scale(self):
 127         return self.default_meter_scale
 128
 129     def get_default_slider_scale(self):
 130         return self.default_slider_scale
 131
 132 gobject.signal_new("default-meter-scale-changed", factory, gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION, gobject.TYPE_NONE, [gobject.TYPE_PYOBJECT])
 133 gobject.signal_new("default-slider-scale-changed", factory, gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION, gobject.TYPE_NONE, [gobject.TYPE_PYOBJECT])