pikers
/
piker
3
0
Fork 0
Code Issues 5 Pull Requests 7 Packages Projects Releases Wiki Activity

Add a default "bars from right" style setting

bar_select
Tyler Goodlet 2020-10-15 15:08:56 -04:00
parent 6f429b1104
commit f4c38621d5
2 changed files with 13 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
piker/ui/_chart.py
View File

@ -18,6 +18,7 @@ from ._axes import YSticky
from ._style import ( from ._style import (
_xaxis_at, _min_points_to_show, hcolor, _xaxis_at, _min_points_to_show, hcolor,
CHART_MARGINS, CHART_MARGINS,
_bars_from_right_in_follow_mode,
) )
from ..data._source import Symbol from ..data._source import Symbol
from .. import brokers from .. import brokers
@ -398,7 +399,10 @@ class ChartPlotWidget(pg.PlotWidget):
xlast = data[-1]['index'] xlast = data[-1]['index']
# show last 50 points on startup # show last 50 points on startup
self.plotItem.vb.setXRange(xlast - 50, xlast + 50) self.plotItem.vb.setXRange(
xlast - 50,
xlast + _bars_from_right_in_follow_mode
)
self._add_sticky(name) self._add_sticky(name)
@ -457,7 +461,10 @@ class ChartPlotWidget(pg.PlotWidget):
xlast = len(data) - 1 xlast = len(data) - 1
# show last 50 points on startup # show last 50 points on startup
self.plotItem.vb.setXRange(xlast - 50, xlast + 50) self.plotItem.vb.setXRange(
xlast - 50,
xlast + _bars_from_right_in_follow_mode
)
# TODO: we should instead implement a diff based # TODO: we should instead implement a diff based
# "only update with new items" on the pg.PlotDataItem # "only update with new items" on the pg.PlotDataItem
@ -774,7 +781,9 @@ async def chart_from_fsp(
dtype=fsp_dtype, dtype=fsp_dtype,
readonly=True, readonly=True,
) )
assert opened # XXX: fsp may have been opened by a duplicate chart. Error for
# now until we figure out how to wrap fsps as "feeds".
assert opened, f"A chart for {key} likely already exists?"
# start fsp sub-actor # start fsp sub-actor
portal = await n.run_in_actor( portal = await n.run_in_actor(

1
piker/ui/_style.py
View File

@ -18,6 +18,7 @@ _xaxis_at = 'bottom'
# charting config # charting config
_min_points_to_show = 3 _min_points_to_show = 3
_bars_from_right_in_follow_mode = 5
CHART_MARGINS = (0, 0, 2, 2) CHART_MARGINS = (0, 0, 2, 2)