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 gi
  19 from gi.repository import GObject
  20 import os
  21 import configparser
  22 from serialization import SerializedObject
  23
  24 try:
  25     import xdg
  26     from xdg import BaseDirectory
  27 except:
  28     xdg = None
  29
  30 def lookup_scale(scales, scale_id):
  31     for scale in scales:
  32         if scale_id == scale.scale_id:
  33             return scale
  34     return None
  35
  36 class Factory(GObject.GObject, SerializedObject):
  37
  38     def __init__(self, topwindow, meter_scales, slider_scales):
  39         self.midi_behavior_modes = [ 'Jump To Value', 'Pick Up' ]
  40         GObject.GObject.__init__(self)
  41         self.topwindow = topwindow
  42         self.meter_scales = meter_scales
  43         self.slider_scales = slider_scales
  44         self.set_default_preferences()
  45         if xdg:
  46             self.config = configparser.ConfigParser()
  47             self.path = os.path.join(BaseDirectory.save_config_path('jack_mixer'), 'preferences.ini')
  48             if os.path.isfile(self.path):
  49                 self.read_preferences()
  50             else:
  51                 self.write_preferences()
  52         else:
  53             print("Cannot load PyXDG. Your preferences will not be preserved across jack_mixer invocations")
  54
  55     def set_default_preferences(self):
  56         self.default_meter_scale = self.meter_scales[0]
  57         self.default_slider_scale = self.slider_scales[0]
  58         self.vumeter_color = '#ccb300'
  59         self.vumeter_color_scheme = 'default'
  60         self.use_custom_widgets = False
  61         self.midi_behavior_mode = 0
  62
  63     def read_preferences(self):
  64         self.config.read(self.path)
  65         scale_id = self.config['Preferences']['default_meter_scale']
  66         self.default_meter_scale = lookup_scale(self.meter_scales, scale_id)
  67         if not self.default_meter_scale:
  68             self.default_meter_scale = meter_scales[0]
  69
  70         scale_id = self.config['Preferences']['default_slider_scale']
  71         self.default_slider_scale = lookup_scale(self.slider_scales, scale_id)
  72         if not self.default_slider_scale:
  73             self.default_slider_scale = slider_scales[0]
  74
  75         self.vumeter_color_scheme = self.config['Preferences']['vumeter_color_scheme']
  76         if not self.vumeter_color_scheme:
  77             self.vumeter_color_scheme = 'default'
  78
  79         self.vumeter_color = self.config['Preferences']['vumeter_color']
  80         if not self.vumeter_color:
  81             self.vumeter_color = '#ccb300'
  82
  83         self.use_custom_widgets = self.config["Preferences"]["use_custom_widgets"] == 'True'
  84
  85     def write_preferences(self):
  86         self.config['Preferences'] = {}
  87         self.config['Preferences']['default_meter_scale'] = self.default_meter_scale.scale_id
  88         self.config['Preferences']['default_slider_scale'] = self.default_slider_scale.scale_id
  89         self.config['Preferences']['vumeter_color_scheme'] = self.vumeter_color_scheme
  90         self.config['Preferences']['vumeter_color'] = self.vumeter_color
  91         self.config['Preferences']['use_custom_widgets'] = str(self.use_custom_widgets)
  92         with open(self.path, 'w') as configfile:
  93             self.config.write(configfile)
  94
  95     def set_default_meter_scale(self, scale):
  96         if scale:
  97             self.default_meter_scale = scale
  98             if xdg:
  99                 self.write_preferences()
 100             self.emit("default-meter-scale-changed", self.default_meter_scale)
 101         else:
 102             print("Ignoring default_meter_scale setting, because \"%s\" scale is not known" % scale_id)
 103
 104     def set_default_slider_scale(self, scale):
 105         if scale:
 106             self.default_slider_scale = scale
 107             if xdg:
 108                 self.write_preferences()
 109             self.emit("default-slider-scale-changed", self.default_slider_scale)
 110         else:
 111             print("Ignoring default_slider_scale setting, because \"%s\" scale is not known" % scale_id)
 112
 113     def set_vumeter_color(self, color):
 114         self.vumeter_color = color
 115         if xdg:
 116             self.write_preferences()
 117         self.emit('vumeter-color-changed', self.vumeter_color)
 118
 119     def set_vumeter_color_scheme(self, color_scheme):
 120         self.vumeter_color_scheme = color_scheme
 121         if xdg:
 122             self.write_preferences()
 123         self.emit('vumeter-color-scheme-changed', self.vumeter_color_scheme)
 124
 125     def set_use_custom_widgets(self, use_custom):
 126         self.use_custom_widgets = use_custom
 127         if xdg:
 128             self.write_preferences()
 129         self.emit('use-custom-widgets-changed', self.use_custom_widgets)
 130
 131     def set_midi_behavior_mode(self, mode):
 132         self.midi_behavior_mode = mode
 133         self.emit("midi-behavior-mode-changed", self.midi_behavior_mode)
 134
 135     def get_default_meter_scale(self):
 136         return self.default_meter_scale
 137
 138     def get_default_slider_scale(self):
 139         return self.default_slider_scale
 140
 141     def get_vumeter_color(self):
 142         return self.vumeter_color
 143
 144     def get_vumeter_color_scheme(self):
 145         return self.vumeter_color_scheme
 146
 147     def get_use_custom_widgets(self):
 148         return self.use_custom_widgets
 149
 150     def get_midi_behavior_mode(self):
 151         return self.midi_behavior_mode
 152
 153     @classmethod
 154     def serialization_name(cls):
 155         return 'gui_factory'
 156
 157     def serialize(self, object_backend):
 158         object_backend.add_property("midi_behavior_mode",
 159                 self.midi_behavior_modes[self.get_midi_behavior_mode()])
 160
 161     def unserialize_property(self, name, value):
 162         if name == "midi_behavior_mode":
 163             self.set_midi_behavior_mode(self.midi_behavior_modes.index(value))
 164             return True
 165         return False
 166
 167 GObject.signal_new("default-meter-scale-changed", Factory,
 168                 GObject.SignalFlags.RUN_FIRST | GObject.SignalFlags.ACTION,
 169                 None, [GObject.TYPE_PYOBJECT])
 170 GObject.signal_new("default-slider-scale-changed", Factory,
 171                 GObject.SignalFlags.RUN_FIRST | GObject.SignalFlags.ACTION,
 172                 None, [GObject.TYPE_PYOBJECT])
 173 GObject.signal_new('vumeter-color-changed', Factory,
 174                 GObject.SignalFlags.RUN_FIRST | GObject.SignalFlags.ACTION,
 175                 None, [str])
 176 GObject.signal_new('vumeter-color-scheme-changed', Factory,
 177                 GObject.SignalFlags.RUN_FIRST | GObject.SignalFlags.ACTION,
 178                 None, [str])
 179 GObject.signal_new('use-custom-widgets-changed', Factory,
 180                 GObject.SignalFlags.RUN_FIRST | GObject.SignalFlags.ACTION,
 181                 None, [bool])
 182 GObject.signal_new('midi-behavior-mode-changed', Factory,
 183                 GObject.SignalFlags.RUN_FIRST | GObject.SignalFlags.ACTION,
 184                 None, [int])