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Pop vlm chart from subplots to avoid double render

vlm_plotz
Tyler Goodlet 2022-01-17 19:00:04 -05:00
parent 56f9ddb880
commit e4bf3a5fe4
1 changed files with 35 additions and 6 deletions
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41
piker/ui/_display.py
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@ -115,13 +115,14 @@ async def update_linked_charts_graphics(
vlm_chart: Optional[ChartPlotWidget] = None, vlm_chart: Optional[ChartPlotWidget] = None,
) -> None: ) -> None:
'''The 'main' (price) chart real-time update loop. '''
The 'main' (price) chart real-time update loop.
Receive from the primary instrument quote stream and update the OHLC Receive from the primary instrument quote stream and update the OHLC
chart. chart.
''' '''
# TODO: bunch of stuff: # TODO: bunch of stuff (some might be done already, can't member):
# - I'm starting to think all this logic should be # - I'm starting to think all this logic should be
# done in one place and "graphics update routines" # done in one place and "graphics update routines"
# should not be doing any length checking and array diffing. # should not be doing any length checking and array diffing.
@ -181,13 +182,34 @@ async def update_linked_charts_graphics(
view = chart.view view = chart.view
last_quote = time.time() last_quote = time.time()
# async def iter_drain_quotes():
# # NOTE: all code below this loop is expected to be synchronous
# # and thus draw instructions are not picked up jntil the next
# # wait / iteration.
# async for quotes in stream:
# while True:
# try:
# moar = stream.receive_nowait()
# except trio.WouldBlock:
# yield quotes
# break
# else:
# for sym, quote in moar.items():
# ticks_frame = quote.get('ticks')
# if ticks_frame:
# quotes[sym].setdefault(
# 'ticks', []).extend(ticks_frame)
# print('pulled extra')
# yield quotes
# async for quotes in iter_drain_quotes():
async for quotes in stream: async for quotes in stream:
now = time.time()
quote_period = time.time() - last_quote quote_period = time.time() - last_quote
quote_rate = round( quote_rate = round(
1/quote_period, 1) if quote_period > 0 else float('inf') 1/quote_period, 1) if quote_period > 0 else float('inf')
if ( if (
quote_period <= 1/_quote_throttle_rate quote_period <= 1/_quote_throttle_rate
@ -196,7 +218,8 @@ async def update_linked_charts_graphics(
and quote_rate >= _quote_throttle_rate * 1.5 and quote_rate >= _quote_throttle_rate * 1.5
): ):
log.warning(f'High quote rate {symbol.key}: {quote_rate}') log.warning(f'High quote rate {symbol.key}: {quote_rate}')
last_quote = now
last_quote = time.time()
# chart isn't active/shown so skip render cycle and pause feed(s) # chart isn't active/shown so skip render cycle and pause feed(s)
if chart.linked.isHidden(): if chart.linked.isHidden():
@ -621,9 +644,15 @@ async def display_symbol_data(
await trio.sleep(0) await trio.sleep(0)
linkedsplits.resize_sidepanes() linkedsplits.resize_sidepanes()
# NOTE: we pop the volume chart from the subplots set so
# that it isn't double rendered in the display loop
# above since we do a maxmin calc on the volume data to
# determine if auto-range adjustements should be made.
linkedsplits.subplots.pop('volume', None)
# TODO: make this not so shit XD # TODO: make this not so shit XD
# close group status # close group status
sbar._status_groups[loading_sym_key][1]() sbar._status_groups[loading_sym_key][1]()
# let the app run. # let the app run.. bby
await trio.sleep_forever() await trio.sleep_forever()