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Repair display loop to work when no vlm chart is loaded

fix_forex
Tyler Goodlet 2022-07-13 12:40:00 -04:00
parent 3aa72abacf
commit 6ce699ae1f
1 changed files with 13 additions and 10 deletions
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23
piker/ui/_display.py
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@ -63,7 +63,7 @@ from ..log import get_logger
log = get_logger(__name__) log = get_logger(__name__)
# TODO: load this from a config.toml! # TODO: load this from a config.toml!
_quote_throttle_rate: int = 22 # Hz _quote_throttle_rate: int = 60 # Hz
# a working tick-type-classes template # a working tick-type-classes template
@ -136,16 +136,16 @@ class DisplayState:
# high level chart handles # high level chart handles
linked: LinkedSplits linked: LinkedSplits
chart: ChartPlotWidget chart: ChartPlotWidget
vlm_chart: ChartPlotWidget
# axis labels # axis labels
l1: L1Labels l1: L1Labels
last_price_sticky: YAxisLabel last_price_sticky: YAxisLabel
vlm_sticky: YAxisLabel
# misc state tracking # misc state tracking
vars: dict[str, Any] vars: dict[str, Any]
vlm_chart: Optional[ChartPlotWidget] = None
vlm_sticky: Optional[YAxisLabel] = None
wap_in_history: bool = False wap_in_history: bool = False
@ -185,9 +185,6 @@ async def graphics_update_loop(
*ohlcv.array[-1][['index', 'close']] *ohlcv.array[-1][['index', 'close']]
) )
if vlm_chart:
vlm_sticky = vlm_chart._ysticks['volume']
maxmin = partial( maxmin = partial(
chart_maxmin, chart_maxmin,
chart, chart,
@ -236,8 +233,6 @@ async def graphics_update_loop(
'ohlcv': ohlcv, 'ohlcv': ohlcv,
'chart': chart, 'chart': chart,
'last_price_sticky': last_price_sticky, 'last_price_sticky': last_price_sticky,
'vlm_chart': vlm_chart,
'vlm_sticky': vlm_sticky,
'l1': l1, 'l1': l1,
'vars': { 'vars': {
@ -250,6 +245,11 @@ async def graphics_update_loop(
} }
}) })
if vlm_chart:
vlm_sticky = vlm_chart._ysticks['volume']
ds.vlm_chart = vlm_chart
ds.vlm_sticky = vlm_sticky
chart.default_view() chart.default_view()
# main real-time quotes update loop # main real-time quotes update loop
@ -322,7 +322,7 @@ def graphics_update_cycle(
for sym, quote in ds.quotes.items(): for sym, quote in ds.quotes.items():
# compute the first available graphic's x-units-per-pixel # compute the first available graphic's x-units-per-pixel
uppx = vlm_chart.view.x_uppx() uppx = chart.view.x_uppx()
# NOTE: vlm may be written by the ``brokerd`` backend # NOTE: vlm may be written by the ``brokerd`` backend
# event though a tick sample is not emitted. # event though a tick sample is not emitted.
@ -786,7 +786,10 @@ async def display_symbol_data(
async with trio.open_nursery() as ln: async with trio.open_nursery() as ln:
# if available load volume related built-in display(s) # if available load volume related built-in display(s)
if has_vlm(ohlcv): if (
not symbol.broker_info[provider].get('no_vlm', False)
and has_vlm(ohlcv)
):
vlm_chart = await ln.start( vlm_chart = await ln.start(
open_vlm_displays, open_vlm_displays,
linked, linked,