pikers
/
piker
3
0
Fork 0
Code Issues 2 Pull Requests 4 Packages Projects Releases Wiki Activity

Work when only newly time stamped quotes are received

kivy_mainline_and_py3.8
Tyler Goodlet 2018-02-12 14:05:57 -05:00
parent b7b7abbc1f
commit 1bbf212ad0
1 changed files with 14 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
piker/ui/watchlist.py
View File

@ -45,6 +45,7 @@ _kv = (f'''
text_size: self.size text_size: self.size
size: self.texture_size size: self.texture_size
font_size: '20' font_size: '20'
color: {colorcode('gray')}
# size_hint_y: None # size_hint_y: None
font_color: {colorcode('gray')} font_color: {colorcode('gray')}
font_name: 'Roboto-Regular' font_name: 'Roboto-Regular'
@ -62,9 +63,9 @@ _kv = (f'''
size: self.size size: self.size
<HeaderCell> <HeaderCell>
bold: True # bold: True
font_size: '20' font_size: '20'
background_color: 0,0,0,0 background_color: [0]*4
canvas.before: canvas.before:
Color: Color:
rgb: [0.13]*4 rgb: [0.13]*4
@ -288,7 +289,7 @@ async def update_quotes(
elif daychange > 0.: elif daychange > 0.:
color = colorcode('forestgreen') color = colorcode('forestgreen')
else: else:
color = colorcode('darkgray') color = colorcode('gray')
chngcell.color = hdrcell.color = color chngcell.color = hdrcell.color = color
@ -296,23 +297,25 @@ async def update_quotes(
if hdrcell.background_color != [0]*4: if hdrcell.background_color != [0]*4:
hdrcell.background_color != color hdrcell.background_color != color
cache = {}
# initial coloring # initial coloring
syms2rows = {}
for quote in first_quotes: for quote in first_quotes:
sym = quote['symbol'] sym = quote['symbol']
row = grid.symbols2rows[sym] row = grid.symbols2rows[sym]
syms2rows[sym] = row data, _ = qtconvert(quote, symbol_data=symbol_data)
color_row(row, quote) color_row(row, data)
cache[sym] = (data, row)
# the core cell update loop # the core cell update loop
while True: while True:
log.debug("Waiting on quotes") log.debug("Waiting on quotes")
quotes = await queue.get() quotes = await queue.get()
datas = []
for quote in quotes: for quote in quotes:
data, displayable = qtconvert(quote, symbol_data=symbol_data) data, displayable = qtconvert(quote, symbol_data=symbol_data)
row = grid.symbols2rows[data['symbol']] row = grid.symbols2rows[data['symbol']]
datas.append((data, row)) # only updates newly timestamped quotes
cache[data['symbol']] = (data, row)
# color changed field values # color changed field values
for key, val in data.items(): for key, val in data.items():
@ -334,8 +337,8 @@ async def update_quotes(
# sort rows by daily % change since open # sort rows by daily % change since open
grid.clear_widgets() grid.clear_widgets()
sort_key = grid.sort_key sort_key = grid.sort_key
for i, (data, row) in enumerate( for data, row in reversed(
reversed(sorted(datas, key=lambda item: item[0][sort_key])) sorted(cache.values(), key=lambda item: item[0][sort_key])
): ):
grid.add_widget(row) # row append grid.add_widget(row) # row append
@ -411,4 +414,4 @@ async def _async_main(name, watchlists, brokermod):
} }
nursery.start_soon(run_kivy, widgets['root'], nursery) nursery.start_soon(run_kivy, widgets['root'], nursery)
nursery.start_soon(update_quotes, widgets, queue, sd, first_quotes) nursery.start_soon(update_quotes, widgets, queue, sd, pkts)