Pileus Git - ~andy/csm213a-hw/blob - vis/visual.py

   1 #!/usr/bin/env python
   2
   3 import sys
   4
   5 if sys.version_info<(3,0,0):
   6         import pygtk as PyGtk
   7         import gtk   as Gtk
   8         import gtk   as GLib
   9 else:
  10         from gi.repository import Gtk
  11         from gi.repository import GLib
  12
  13 if sys.version_info<(3,0,0):
  14         ICON_SIZE_BUTTON = Gtk.ICON_SIZE_BUTTON
  15 else:
  16         ICON_SIZE_BUTTON = Gtk.IconSize.BUTTON
  17
  18 class Visual:
  19         def __init__(self, config, device, logger):
  20                 def get_objects(names):
  21                         return list(map(lambda x:
  22                                 self.builder.get_object(x), names))
  23
  24                 self.config   = config
  25                 self.device   = device
  26                 self.logger   = logger
  27                 self.builder  = Gtk.Builder()
  28                 self.history  = [0.5]*1000
  29
  30                 self.builder.add_from_file('visual.ui')
  31                 self.builder.connect_signals(self)
  32                 self.window   = self.builder.get_object("window")
  33                 self.settings = self.builder.get_object("settings")
  34
  35                 self.accs     = get_objects(['accx', 'accy', 'accz'])
  36                 self.mags     = get_objects(['magx', 'magy', 'magz'])
  37                 self.lgts     = get_objects(['lgt'])
  38                 self.tchs     = get_objects(['tchp', 'tchd'])
  39                 self.a2ds     = get_objects(['a2d0', 'a2d1', 'a2d2', 'a2d3', 'a2d4', 'a2d5'])
  40
  41         # Signal handlers
  42         def on_hide(self, win, *args):
  43                 self.settings.hide()
  44                 return True
  45
  46         def on_show(self, act):
  47                 self.settings.show()
  48                 return True
  49
  50         def on_serial(self, act):
  51                 if act.get_active():
  52                         self.status(self.device.connect())
  53                 else:
  54                         self.status(self.device.disconnect())
  55                 return True
  56
  57         def on_xively(self, act):
  58                 if act.get_active():
  59                         self.status(self.logger.connect())
  60                 else:
  61                         self.status(self.logger.disconnect())
  62                 return True
  63
  64         def on_flush(self, act):
  65                 self.logger.flush()
  66
  67         def on_enable(self, obj):
  68                 name  = Gtk.Buildable.get_name(obj)
  69                 name  = name.replace('_btn', '')
  70                 state = obj.get_active()
  71                 if self.config.enable[name] != state:
  72                         self.device.set_enable(name, state)
  73                         self.config.enable[name] = state
  74                         self.config.save()
  75
  76         def on_rate(self, obj):
  77                 name  = Gtk.Buildable.get_name(obj)
  78                 name  = name.replace('_spin', '')
  79                 value = obj.get_value()
  80                 if self.config.rate[name] != value:
  81                         self.device.set_rate(name, value)
  82                         self.config.rate[name] = value
  83                         self.config.save()
  84
  85         def on_config(self, obj):
  86                 name = Gtk.Buildable.get_name(obj)
  87                 if isinstance(obj, Gtk.SpinButton):
  88                         value = obj.get_value()
  89                 else:
  90                         value = obj.get_text()
  91                 if getattr(self.config, name) != value:
  92                         setattr(self.config, name, value)
  93                         self.config.save()
  94
  95         def on_expose(self, obj, _):
  96                 cairo   = obj.window.cairo_create()
  97                 count   = len(self.history)
  98                 extents = cairo.clip_extents()
  99                 width   = extents[2] - extents[0]
 100                 height  = extents[3] - extents[1]
 101
 102                 cairo.set_line_width(4)
 103                 for i in range(0,len(self.history)):
 104                         x = i*width/(count-1)
 105                         y = ((1-self.history[i]) * 0.8 + 0.1) * height
 106                         if i==0:
 107                                 cairo.move_to(x, y)
 108                         else:
 109                                 cairo.line_to(x, y)
 110                 cairo.stroke()
 111
 112         def on_key(self, win, ev):
 113                 if ev.string == 'q':
 114                         Gtk.main_quit();
 115
 116         def on_destroy(self, win):
 117                 Gtk.main_quit()
 118
 119         # Methods
 120         def load_config(self):
 121                 def set_val(name, val):
 122                         self.builder.get_object(name).set_value(val)
 123                 def set_txt(name, val):
 124                         self.builder.get_object(name).set_text(val)
 125                 def set_act(name, val):
 126                         self.builder.get_object(name).set_active(val)
 127
 128                 # Serial settings
 129                 set_txt('device',   self.config.device)
 130                 set_val('baudrate', self.config.baudrate)
 131                 set_txt('parity',   self.config.parity)
 132                 set_val('databits', self.config.databits)
 133                 set_val('stopbits', self.config.stopbits)
 134
 135                 # Xively settings
 136                 set_txt('feedid',   self.config.feedid)
 137                 set_txt('apikey',   self.config.apikey)
 138                 set_val('maxrate',  self.config.maxrate)
 139
 140                 # Sensor settings
 141                 for key in list(self.config.enable.keys()):
 142                         set_act(key+'_btn',  self.config.enable[key])
 143                         set_val(key+'_spin', self.config.rate[key])
 144
 145
 146         def update(self, state):
 147                 def setval(objs, vals, lbls):
 148                         for i in range(0,len(objs)):
 149                                 if vals[i] == None:
 150                                         continue
 151                                 if lbls and lbls[i]:
 152                                         objs[i].set_text('%s: %f' % (lbls[i], vals[i]))
 153                                 else:
 154                                         objs[i].set_text('%f' % vals[i])
 155
 156                 setval(self.accs,  state.acc, ['X', 'Y', 'Z'])
 157                 setval(self.mags,  state.mag, ['X', 'Y', 'Z'])
 158                 setval(self.lgts,  state.lgt, [])
 159                 setval(self.tchs,  state.tch, ['P', 'D'])
 160                 setval(self.a2ds,  state.a2d, [])
 161
 162                 self.history = self.history[1:] + [state.a2d[0]]
 163                 self.window.queue_draw()
 164
 165         def debug(self, state):
 166                 print('update: ' + str(state))
 167                 print('\tacc - ' + str(state.acc))
 168                 print('\tmag - ' + str(state.mag))
 169                 print('\tlgt - ' + str(state.lgt))
 170                 print('\ttch - ' + str(state.touch))
 171                 print('\ta2d - ' + str(state.a2d))
 172
 173         def timer(self):
 174                 def check(state, name):
 175                         btn = self.builder.get_object(name + '_btn')
 176                         con = self.builder.get_object(name + '_con')
 177                         img = Gtk.STOCK_YES if state else Gtk.STOCK_NO
 178                         btn.set_active(state)
 179                         con.set_from_stock(img, ICON_SIZE_BUTTON)
 180
 181                 check(self.device.running(), "serial")
 182                 check(self.logger.running(), "xively")
 183
 184                 for item in self.device.process():
 185                         self.update(item)
 186                         self.logger.append(item)
 187                         #self.debug(item)
 188
 189                 return True
 190
 191         def run(self):
 192                 self.load_config()
 193                 self.window.show()
 194                 GLib.timeout_add(1000/60, self.timer)
 195                 Gtk.main()
 196
 197         # Private methods
 198         def status(self, msg):
 199                 if not msg:
 200                         return
 201                 status = self.builder.get_object("status")
 202                 status.push(text=('Error: ' + msg), context_id=0)