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Fix sidepane alignment with FSP charts 

Call the resize method only after all FSP subcharts have rendered
such that the main OHLC chart's final width is read.

Further tweaks:
- drop rsi by default
- drop the stream drain stuff
- fix failed-to-read shm logging
py3.10_support
Tyler Goodlet 2021-12-20 13:53:29 -05:00
parent 56b65a1cde
commit 644ac6661c
1 changed files with 43 additions and 48 deletions
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91
piker/ui/_display.py
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@ -61,7 +61,10 @@ log = get_logger(__name__)
_quote_throttle_rate: int = 58 # Hz
def try_read(array: np.ndarray) -> Optional[np.ndarray]:
def try_read(
array: np.ndarray
) -> Optional[np.ndarray]:
'''
Try to read the last row from a shared mem array or ``None``
if the array read returns a zero-length array result.
@ -85,10 +88,9 @@ def try_read(array: np.ndarray) -> Optional[np.ndarray]:
# something we need anyway, maybe there should be some kind of
# signal that a prepend is taking place and this consumer can
# respond (eg. redrawing graphics) accordingly.
log.warning(f'Read-race on shm array: {graphics_name}@{shm.token}')
# the array read was emtpy
return None
# the array read was emtpy
return None
def update_fsp_chart(
@ -101,8 +103,10 @@ def update_fsp_chart(
array = shm.array
last_row = try_read(array)
# guard against unreadable case
if not last_row:
log.warning(f'Read-race on shm array: {graphics_name}@{shm.token}')
return
# update graphics
@ -175,7 +179,6 @@ def chart_maxmin(
async def update_chart_from_quotes(
linked: LinkedSplits,
stream: tractor.MsgStream,
ohlcv: np.ndarray,
@ -247,17 +250,16 @@ async def update_chart_from_quotes(
chart.show()
last_quote = time.time()
# 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:
now = time.time()
quote_period = now - last_quote
quote_rate = round(1/quote_period, 1) if quote_period else float('inf')
quote_period = time.time() - last_quote
quote_rate = round(
1/quote_period, 1) if quote_period > 0 else float('inf')
if (
quote_period <= 1/_quote_throttle_rate
and quote_rate > _quote_throttle_rate + 2
and quote_rate > _quote_throttle_rate * 1.5
):
log.warning(f'High quote rate {symbol.key}: {quote_rate}')
last_quote = now
@ -454,7 +456,8 @@ def maybe_mk_fsp_shm(
readonly: bool = True,
) -> (ShmArray, bool):
'''Allocate a single row shm array for an symbol-fsp pair if none
'''
Allocate a single row shm array for an symbol-fsp pair if none
exists, otherwise load the shm already existing for that token.
'''
@ -481,7 +484,6 @@ def maybe_mk_fsp_shm(
@acm
async def open_fsp_sidepane(
linked: LinkedSplits,
conf: dict[str, dict[str, str]],
@ -570,6 +572,7 @@ async def open_fsp_cluster(
async def maybe_open_fsp_cluster(
workers: int = 2,
**kwargs,
) -> AsyncGenerator[int, dict[str, tractor.Portal]]:
kwargs.update(
@ -589,7 +592,6 @@ async def maybe_open_fsp_cluster(
async def start_fsp_displays(
cluster_map: dict[str, tractor.Portal],
linkedsplits: LinkedSplits,
fsps: dict[str, str],
@ -603,7 +605,8 @@ async def start_fsp_displays(
display_in_own_task: bool = False,
) -> None:
'''Create sub-actors (under flat tree)
'''
Create sub-actors (under flat tree)
for each entry in config and attach to local graphics update tasks.
Pass target entrypoint and historical data.
@ -668,9 +671,7 @@ async def start_fsp_displays(
async def update_chart_from_fsp(
portal: tractor.Portal,
linkedsplits: LinkedSplits,
brokermod: ModuleType,
sym: str,
@ -687,7 +688,8 @@ async def update_chart_from_fsp(
profiler: pg.debug.Profiler,
) -> None:
'''FSP stream chart update loop.
'''
FSP stream chart update loop.
This is called once for each entry in the fsp
config map.
@ -792,9 +794,7 @@ async def update_chart_from_fsp(
level_line(chart, 80, orient_v='top')
chart._set_yrange()
done()
chart.linked.resize_sidepanes()
done() # status updates
profiler(f'fsp:{func_name} starting update loop')
profiler.finish()
@ -912,7 +912,6 @@ def has_vlm(ohlcv: ShmArray) -> bool:
@acm
async def maybe_open_vlm_display(
linked: LinkedSplits,
ohlcv: ShmArray,
@ -992,20 +991,10 @@ async def maybe_open_vlm_display(
# size view to data once at outset
chart._set_yrange()
# size pain to parent chart
# TODO: this appears to nearly fix a bug where the vlm sidepane
# could be sized correctly nearly immediately (since the
# order pane is already sized), right now it doesn't seem to
# fully align until the VWAP fsp-actor comes up...
await trio.sleep(0)
chart.linked.resize_sidepanes()
await trio.sleep(0)
yield chart
async def display_symbol_data(
godwidget: GodWidget,
provider: str,
sym: str,
@ -1116,24 +1105,24 @@ async def display_symbol_data(
'chart_kwargs': {'style': 'step'}
},
'rsi': {
'func_name': 'rsi', # literal python func ref lookup name
# 'rsi': {
# 'func_name': 'rsi', # literal python func ref lookup name
# map of parameters to place on the fsp sidepane widget
# which should map to dynamic inputs available to the
# fsp function at runtime.
'params': {
'period': {
'default_value': 14,
'widget_kwargs': {'readonly': True},
},
},
# # map of parameters to place on the fsp sidepane widget
# # which should map to dynamic inputs available to the
# # fsp function at runtime.
# 'params': {
# 'period': {
# 'default_value': 14,
# 'widget_kwargs': {'readonly': True},
# },
# },
# ``ChartPlotWidget`` options passthrough
'chart_kwargs': {
'static_yrange': (0, 100),
},
},
# # ``ChartPlotWidget`` options passthrough
# 'chart_kwargs': {
# 'static_yrange': (0, 100),
# },
# },
}
if has_vlm(ohlcv): # and provider != 'binance':
@ -1201,4 +1190,10 @@ async def display_symbol_data(
order_mode_started
)
):
# let Qt run to render all widgets and make sure the
# sidepanes line up vertically.
await trio.sleep(0)
linkedsplits.resize_sidepanes()
# let the app run.
await trio.sleep_forever()