Add real-time market caps
Tyler Goodlet
parent
722d294915
commit
d50aa17a83
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@ -41,15 +41,13 @@ def colorcode(name):
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return _colors[name if name else 'gray']
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# border size
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_bs = 3
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_bs = 3 # border size
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_color = [0.13]*3 # nice shade of gray
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_kv = (f'''
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#:kivy 1.10.0
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<Cell>
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font_size: 20
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font_size: 18
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text_size: self.size
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size: self.texture_size
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color: {colorcode('gray')}
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@ -62,7 +60,7 @@ _kv = (f'''
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outline_color: [0.1]*4
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<HeaderCell>
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font_size: 21
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font_size: 20
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background_color: [0]*4
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canvas.before:
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Color:
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@ -91,17 +89,19 @@ _kv = (f'''
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''')
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# Questrade key conversion
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# Questrade key conversion / column order
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_qt_keys = {
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# 'symbol': 'symbol', # done manually in qtconvert
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'symbol': 'symbol', # done manually in qtconvert
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'%': '%',
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'lastTradePrice': 'last',
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'askPrice': 'ask',
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'bidPrice': 'bid',
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'lastTradeSize': 'size',
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'bidSize': 'bsize',
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'askSize': 'asize',
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'volume': ('vol', humanize),
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'VWAP': ('VWAP', partial(round, ndigits=3)),
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'volume': ('vol', humanize),
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'mktcap': ('mktcap', humanize),
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'openPrice': 'open',
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'lowPrice': 'low',
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'highPrice': 'high',
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@ -127,19 +127,25 @@ def qtconvert(
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and the second is the same but with all values converted to a
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"display-friendly" string format.
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"""
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last = quote['lastTradePrice']
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symbol = quote['symbol']
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if symbol_data: # we can only compute % change from symbols data
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previous = symbol_data[quote['symbol']]['prevDayClosePrice']
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change = percent_change(previous, quote['lastTradePrice'])
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previous = symbol_data[symbol]['prevDayClosePrice']
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change = percent_change(previous, last)
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share_count = symbol_data[symbol].get('outstandingShares', None)
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mktcap = share_count * last if share_count else 'NA'
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else:
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change = 0
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new = {
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computed = {
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'symbol': quote['symbol'],
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'%': round(change, 3)
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'%': round(change, 3),
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'mktcap': mktcap,
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}
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displayable = new.copy()
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new = {}
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displayable = {}
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for key, new_key in keymap.items():
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display_value = value = quote[key]
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display_value = value = quote.get(key) or computed.get(key)
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# API servers can return `None` vals when markets are closed (weekend)
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value = 0 if value is None else value
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@ -263,7 +269,6 @@ class Row(GridLayout):
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'last': ['bid', 'ask'],
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'size': ['bsize', 'asize']
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}
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# import pdb; pdb.set_trace()
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ba_cells = {}
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layouts = {}
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for key, children in bidasks.items():
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@ -309,6 +314,23 @@ class Row(GridLayout):
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self.add_widget(cell)
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return cell
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def update(self, record, displayable):
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# color changed field values
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for key, val in record.items():
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# logic for cell text coloring: up-green, down-red
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if self._last_record[key] < val:
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color = colorcode('forestgreen')
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elif self._last_record[key] > val:
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color = colorcode('red2')
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else:
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color = colorcode('gray')
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cell = self.get_cell(key)
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cell.text = str(displayable[key])
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cell.color = color
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self._last_record = record
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class TickerTable(GridLayout):
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"""A grid for displaying ticker quote records as a table.
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@ -392,9 +414,10 @@ async def update_quotes(
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for quote in first_quotes:
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sym = quote['symbol']
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row = grid.symbols2rows[sym]
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data, displayable = qtconvert(quote, symbol_data=symbol_data)
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color_row(row, data)
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cache[sym] = (data, row)
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record, displayable = qtconvert(quote, symbol_data=symbol_data)
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row.update(record, displayable)
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color_row(row, record)
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cache[sym] = (record, row)
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grid.render_rows(cache)
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@ -403,26 +426,11 @@ async def update_quotes(
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log.debug("Waiting on quotes")
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quotes = await queue.get() # new quotes data only
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for quote in quotes:
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data, displayable = qtconvert(quote, symbol_data=symbol_data)
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row = grid.symbols2rows[data['symbol']]
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cache[data['symbol']] = (data, row)
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# color changed field values
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for key, val in data.items():
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# logic for cell text coloring: up-green, down-red
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if row._last_record[key] < val:
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color = colorcode('forestgreen')
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elif row._last_record[key] > val:
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color = colorcode('red2')
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else:
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color = colorcode('gray')
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cell = row.get_cell(key)
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cell.text = str(displayable[key])
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cell.color = color
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color_row(row, data)
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row._last_record = data
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record, displayable = qtconvert(quote, symbol_data=symbol_data)
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row = grid.symbols2rows[record['symbol']]
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cache[record['symbol']] = (record, row)
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row.update(record, displayable)
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color_row(row, record)
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grid.render_rows(cache)
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@ -458,7 +466,7 @@ async def _async_main(name, watchlists, brokermod):
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return
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first_quotes = [
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qtconvert(quote, symbol_data=sd)[1] for quote in pkts]
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qtconvert(quote, symbol_data=sd)[0] for quote in pkts]
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# build out UI
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Builder.load_string(_kv)
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