def generate_model(self, figurepage_idx: int = 0) -> Model:
"""Returns a model generated from internal blueprints"""
if figurepage_idx >= len(self.figurepages):
raise RuntimeError(
f'Cannot generate model for FigurePage with index {figurepage_idx} as there are only {len(self.figurepages)}.'
)
figurepage = self.figurepages[figurepage_idx]
if not self._is_optreturn:
tabs = self.generate_model_tabs(figurepage)
else:
tabs = []
# now append analyzer tab(s)
analyzers = figurepage.analyzers
panel_analyzer = self.get_analyzer_panel(analyzers)
if panel_analyzer is not None:
tabs.append(panel_analyzer)
# append meta tab
if not self._is_optreturn:
assert figurepage.strategy is not None
meta = Div(text=metadata.get_metadata_div(figurepage.strategy))
metapanel = Panel(child=meta, title="Meta")
tabs.append(metapanel)
model = Tabs(tabs=tabs)
# attach the model to the underlying figure for later reference (e.g. unit test)
figurepage.model = model
return model
def __init__(self,
doc: Document,
push_fnc,
bokeh_fac: callable,
push_data_fnc: callable,
strategy: bt.Strategy,
figurepage_idx: int = 0,
lookback: int = 20):
self._slider_aspectratio = None
self._push_data_fnc = push_data_fnc
self._push_fnc = push_fnc
self._figurepage_idx = figurepage_idx
self.last_data_index = -1
self._lookback = lookback
self._strategy = strategy
self._current_group = None
self.document = doc
self._bokeh_fac = bokeh_fac
self._bokeh = None
bokeh = self._bokeh_fac(
) # temporary bokeh object to get tradingdomains and scheme
self._scheme = copy(
bokeh.p.scheme
) # preserve original scheme as originally provided by the user
tradingdomains = bokeh.list_tradingdomains(strategy)
self._current_group = tradingdomains[0]
self._select_tradingdomain = Select(value=self._current_group,
options=tradingdomains)
self._select_tradingdomain.on_change('value', self._on_select_group)
btn_refresh_analyzers = Button(label='Refresh Analyzers', width=100)
btn_refresh_analyzers.on_click(self._on_click_refresh_analyzers)
td_label = Div(text="Trading Domain:", margin=(9, 5, 15, 5))
controls = row(children=[
td_label, self._select_tradingdomain, btn_refresh_analyzers
])
self.model = column(children=[controls, Tabs(tabs=[])],
sizing_mode=self._scheme.plot_sizing_mode)
# append meta tab
meta = Div(text=metadata.get_metadata_div(strategy))
self._panel_metadata = Panel(child=meta, title="Meta")
self._refreshmodel()