How to use the enable.savage.trait_defs.ui.svg_button.SVGButton function in enable

link = Instance(serial_link.SerialLink)
  console_output = Instance(OutputStream)
  python_console_env = Dict
  device_serial = Str('')
  a = Int
  b = Int
  tracking_view = Instance(TrackingView)
  solution_view = Instance(SolutionView)
  baseline_view = Instance(BaselineView)
  observation_view = Instance(ObservationView)
  observation_view_base = Instance(ObservationView)
  system_monitor_view = Instance(SystemMonitorView)
  settings_view = Instance(SettingsView)
  update_view = Instance(UpdateView)

  paused_button = SVGButton(
    label='', tooltip='Pause console update', toggle_tooltip='Resume console update', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'pause.svg'),
    toggle_filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'play.svg'),
    width=8, height=8
  )
  clear_button = SVGButton(
    label='', tooltip='Clear console buffer',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'x.svg'),
    width=8, height=8
  )

  view = View(
    VSplit(
      Tabbed(
        Item('tracking_view', style='custom', label='Tracking'),
        Item('solution_view', style='custom', label='Solution'),

tracking_view = Instance(TrackingView)
  solution_view = Instance(SolutionView)
  baseline_view = Instance(BaselineView)
  observation_view = Instance(ObservationView)
  observation_view_base = Instance(ObservationView)
  system_monitor_view = Instance(SystemMonitorView)
  settings_view = Instance(SettingsView)
  update_view = Instance(UpdateView)

  paused_button = SVGButton(
    label='', tooltip='Pause console update', toggle_tooltip='Resume console update', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'pause.svg'),
    toggle_filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'play.svg'),
    width=8, height=8
  )
  clear_button = SVGButton(
    label='', tooltip='Clear console buffer',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'x.svg'),
    width=8, height=8
  )

  view = View(
    VSplit(
      Tabbed(
        Item('tracking_view', style='custom', label='Tracking'),
        Item('solution_view', style='custom', label='Solution'),
        Item('baseline_view', style='custom', label='Baseline'),
        VSplit(
          Item('observation_view', style='custom', show_label=False),
          Item('observation_view_base', style='custom', show_label=False),
          label='Observations',
        ),

clear_button = SVGButton(
    label='', tooltip='Clear',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'x.svg'),
    width=16, height=16
  )
  zoomall_button = SVGButton(
    label='', tooltip='Zoom All',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'fullscreen.svg'),
    width=16, height=16
  )
  center_button = SVGButton(
    label='', tooltip='Center on Baseline', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'target.svg'),
    width=16, height=16
  )
  paused_button = SVGButton(
    label='', tooltip='Pause', toggle_tooltip='Run', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'pause.svg'),
    toggle_filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'play.svg'),
    width=16, height=16
  )

  reset_button = Button(label='Reset Filters')
  reset_iar_button = Button(label='Reset IAR')
  init_base_button = Button(label='Init. with known baseline')

  traits_view = View(
    HSplit(
      Item('table', style = 'readonly', editor = TabularEditor(adapter=SimpleAdapter()), show_label=False, width=0.3),
      VGroup(
        HGroup(
          Item('paused_button', show_label=False),

self.gps_week = soln[22]
    self.soln_valid = soln[23]
    self.n_used = soln[24]


class ObservationView(HasTraits):
  python_console_cmds = Dict()

  _obs_table_list = List()
  obs = Dict()

  name = Str('Rover')

  recording = Bool(False)

  record_button = SVGButton(
    label='Record', tooltip='Record Raw Observations',
    toggle_tooltip='Stop Recording', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'fontawesome', 'floppy-o.svg'),
    toggle_filename=os.path.join(os.path.dirname(__file__), 'images', 'fontawesome', 'stop.svg'),
    width=16, height=16
  )

  def trait_view(self, view):
    return View(
      HGroup(
        Item('_obs_table_list', style = 'readonly', editor = TabularEditor(adapter=SimpleAdapter()), show_label=False),
        VGroup(
          Item('record_button', show_label=False),
        ),
        label = self.name,
        show_border = True

alts_psuedo_abs = List()

  table_spp = List()
  table_psuedo_abs = List()
  dops_table = List()
  pos_table_spp = List()
  vel_table = List()

  plot = Instance(Plot)
  plot_data = Instance(ArrayPlotData)
  # Store plots we care about for legend

  running = Bool(True)
  position_centered = Bool(False)

  clear_button = SVGButton(
    label='', tooltip='Clear',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'x.svg'),
    width=16, height=16
  )
  zoomall_button = SVGButton(
    label='', tooltip='Zoom All',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'fullscreen.svg'),
    width=16, height=16
  )
  center_button = SVGButton(
    label='', tooltip='Center on Solution', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'target.svg'),
    width=16, height=16
  )
  paused_button = SVGButton(
    label='', tooltip='Pause', toggle_tooltip='Run', toggle=True,

class BaselineView(HasTraits):
  python_console_cmds = Dict()

  ns = List()
  es = List()
  ds = List()

  table = List()

  plot = Instance(Plot)
  plot_data = Instance(ArrayPlotData)

  running = Bool(True)
  position_centered = Bool(False)

  clear_button = SVGButton(
    label='', tooltip='Clear',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'x.svg'),
    width=16, height=16
  )
  zoomall_button = SVGButton(
    label='', tooltip='Zoom All',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'fullscreen.svg'),
    width=16, height=16
  )
  center_button = SVGButton(
    label='', tooltip='Center on Baseline', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'target.svg'),
    width=16, height=16
  )
  paused_button = SVGButton(
    label='', tooltip='Pause', toggle_tooltip='Run', toggle=True,

plot_data = Instance(ArrayPlotData)

  running = Bool(True)
  position_centered = Bool(False)

  clear_button = SVGButton(
    label='', tooltip='Clear',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'x.svg'),
    width=16, height=16
  )
  zoomall_button = SVGButton(
    label='', tooltip='Zoom All',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'fullscreen.svg'),
    width=16, height=16
  )
  center_button = SVGButton(
    label='', tooltip='Center on Baseline', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'target.svg'),
    width=16, height=16
  )
  paused_button = SVGButton(
    label='', tooltip='Pause', toggle_tooltip='Run', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'pause.svg'),
    toggle_filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'play.svg'),
    width=16, height=16
  )

  reset_button = Button(label='Reset Filters')
  reset_iar_button = Button(label='Reset IAR')
  init_base_button = Button(label='Init. with known baseline')

  traits_view = View(

import os.path

from enable.savage.trait_defs.ui.svg_button import SVGButton
from traits.api import HasTraits, Str
from traitsui.api import Item, View, HGroup

button_size = (64, 64)

class ButtonDemo(HasTraits):

    copy_button = SVGButton(label='Copy',
                            filename=os.path.join(os.path.dirname(__file__),
                                                  'edit-copy.svg'),
                            width=button_size[0],
                            height=button_size[1])
    paste_button = SVGButton(label='Paste',
                             filename=os.path.join(os.path.dirname(__file__),
                                                   'edit-paste.svg'),
                             width=button_size[0],
                             height=button_size[1])
    text = Str
    clipboard = Str

    traits_view = View(HGroup(Item('copy_button', show_label=False),
                              Item('paste_button', show_label=False,
                                   enabled_when='len(clipboard)>0')),
                       Item('text', width=200),
                       title='SVG Button Demo')

    def _copy_button_fired(self, event):
        self.clipboard = copy(self.text)

import os

from traits.api import HasTraits
from traitsui.api import View, Item
from enable.savage.trait_defs.ui.svg_button import SVGButton


pause_icon = os.path.join(os.path.dirname(__file__), 'player_pause.svg')
resume_icon = os.path.join(os.path.dirname(__file__), 'player_play.svg')

class SVGDemo(HasTraits):

    pause = SVGButton('Pause', filename=pause_icon,
                      toggle_filename=resume_icon,
                      toggle_state=True,
                      toggle_label='Resume',
                      toggle_tooltip='Resume',
                      tooltip='Pause', toggle=True)

    trait_view = View(Item('pause'))

SVGDemo().configure_traits()

ds = List()

  table = List()

  plot = Instance(Plot)
  plot_data = Instance(ArrayPlotData)

  running = Bool(True)
  position_centered = Bool(False)

  clear_button = SVGButton(
    label='', tooltip='Clear',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'x.svg'),
    width=16, height=16
  )
  zoomall_button = SVGButton(
    label='', tooltip='Zoom All',
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'fullscreen.svg'),
    width=16, height=16
  )
  center_button = SVGButton(
    label='', tooltip='Center on Baseline', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'target.svg'),
    width=16, height=16
  )
  paused_button = SVGButton(
    label='', tooltip='Pause', toggle_tooltip='Run', toggle=True,
    filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'pause.svg'),
    toggle_filename=os.path.join(os.path.dirname(__file__), 'images', 'iconic', 'play.svg'),
    width=16, height=16
  )