Combine last,bid,ask in a StackLayout-cell
Tyler Goodlet
parent
29be7f58c9
commit
e464898210
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@ -5,11 +5,14 @@ Launch with ``piker watch <watchlist name>``.
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(Currently there's a bunch of QT specific stuff in here)
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"""
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from itertools import chain
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from functools import partial
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import trio
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from kivy.uix.boxlayout import BoxLayout
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from kivy.uix.gridlayout import GridLayout
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from kivy.uix.stacklayout import StackLayout
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from kivy.uix.button import Button
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from kivy.uix.label import Label
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from kivy.uix.scrollview import ScrollView
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from kivy.lang import Builder
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from kivy import utils
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@ -40,34 +43,26 @@ def colorcode(name):
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# border size
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_bs = 3
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_color = [0.14]*4 # nice shade of gray
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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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text_size: self.size
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size: self.texture_size
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font_size: '20'
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color: {colorcode('gray')}
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# size_hint_y: None
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font_color: {colorcode('gray')}
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font_name: 'Roboto-Regular'
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# height: 50
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# width: 50
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background_color: [0]*4
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background_color: [0.13]*3 + [1]
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background_normal: ''
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valign: 'middle'
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halign: 'center'
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outline_color: [0.1]*4
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canvas.before:
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Color:
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rgb: {_color}
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BorderImage:
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pos: self.pos
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size: self.size
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<HeaderCell>
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font_size: '20'
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font_size: 21
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background_color: [0]*4
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canvas.before:
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Color:
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@ -84,11 +79,14 @@ _kv = (f'''
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row_default_height: 75
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cols: 1
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<BidAskLayout>
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spacing: [{_bs}, 0]
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<Row>
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minimum_height: 200 # should be pulled from Cell text size
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minimum_width: 200
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row_force_default: True
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row_default_height: 75
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# minimum_height: 200 # should be pulled from Cell text size
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# minimum_width: 200
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# row_force_default: True
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# row_default_height: 75
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outline_color: [.7]*4
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''')
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@ -99,19 +97,19 @@ _qt_keys = {
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'lastTradePrice': 'last',
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'askPrice': 'ask',
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'bidPrice': 'bid',
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'lastTradeSize': 'last size',
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'bidSize': 'bid size',
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'askSize': 'ask size',
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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', "{:.3f}".format),
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'high52w': 'high52w',
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'VWAP': ('VWAP', partial(round, ndigits=3)),
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'openPrice': 'open',
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'lowPrice': 'low',
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'highPrice': 'high',
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'low52w': 'low52w',
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'high52w': 'high52w',
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# "lastTradePriceTrHrs": 7.99,
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# "lastTradeTick": "Equal",
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# "lastTradeTime": "2018-01-30T18:28:23.434000-05:00",
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# 'low52w': 'low52w',
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'lowPrice': 'low day',
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'openPrice': 'open',
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# "symbolId": 3575753,
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# "tier": "",
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# 'isHalted': 'halted',
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@ -188,11 +186,62 @@ class HeaderCell(Button):
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self.background_color = self.color
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class Cell(Label):
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"""Data cell label.
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class Cell(Button):
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"""Data cell.
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"""
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class BidAskLayout(StackLayout):
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"""Cell which houses three buttons containing a last, bid, and ask in a
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single unit oriented with the last 2 under the first.
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"""
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def __init__(self, values, header=False, **kwargs):
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super(BidAskLayout, self).__init__(orientation='lr-tb', **kwargs)
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assert len(values) == 3, "You can only provide 3 values: last,bid,ask"
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self._keys2cells = {}
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cell_type = HeaderCell if header else Cell
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top_size = cell_type().font_size
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small_size = top_size - 5
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top_prop = 0.7
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bottom_prop = 1 - top_prop
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for (key, size_hint, font_size), value in zip(
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[('last', (1, top_prop), top_size),
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('bid', (0.5, bottom_prop), small_size),
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('ask', (0.5, bottom_prop), small_size)],
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values
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):
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cell = cell_type(
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text=str(value),
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size_hint=size_hint,
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width=self.width/2 - 3,
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font_size=font_size
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)
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self._keys2cells[key] = cell
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cell.key = value
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cell.is_header = header
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setattr(self, key, cell)
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self.add_widget(cell)
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# should be assigned by referrer
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self.row = None
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def get_cell(self, key):
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return self._keys2cells[key]
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@property
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def row(self):
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return self.row
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@row.setter
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def row(self, row):
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for cell in self.cells:
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cell.row = row
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@property
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def cells(self):
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return [self.last, self.bid, self.ask]
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class Row(GridLayout):
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"""A grid for displaying a row of ticker quote data.
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@ -209,12 +258,41 @@ class Row(GridLayout):
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self.table = table
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self.is_header = is_header_row
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# create `BidAskCells` first
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bidasks = {
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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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layout = BidAskLayout(
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[record[key]] + [record[child] for child in children],
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header=is_header_row
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)
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layout.row = self
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layouts[key] = layout
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for i, child in enumerate([key] + children):
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ba_cells[child] = layout.cells[i]
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children_flat = list(chain.from_iterable(bidasks.values()))
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self._cell_widgets.update(ba_cells)
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# build out row using Cell labels
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for (key, val) in record.items():
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header = key in headers
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cell = self._append_cell(val, header=header)
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self._cell_widgets[key] = cell
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cell.key = key
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# handle bidask cells
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if key in layouts:
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self.add_widget(layouts[key])
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elif key in children_flat:
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# these cells have already been added to the `BidAskLayout`
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continue
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else:
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cell = self._append_cell(val, header=header)
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cell.key = key
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self._cell_widgets[key] = cell
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def get_cell(self, key):
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return self._cell_widgets[key]
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@ -228,11 +306,6 @@ class Row(GridLayout):
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cell = celltype(text=str(text))
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cell.is_header = header
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cell.row = self
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# don't bold the header row
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if header and self.is_header:
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cell.bold = False
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self.add_widget(cell)
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return cell
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@ -296,8 +369,8 @@ async def update_quotes(
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grid = widgets['grid']
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def color_row(row, data):
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hdrcell = row._cell_widgets['symbol']
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chngcell = row._cell_widgets['%']
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hdrcell = row.get_cell('symbol')
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chngcell = row.get_cell('%')
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daychange = float(data['%'])
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if daychange < 0.:
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color = colorcode('red2')
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@ -319,7 +392,7 @@ 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, _ = qtconvert(quote, symbol_data=symbol_data)
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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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@ -344,7 +417,7 @@ async def update_quotes(
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else:
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color = colorcode('gray')
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cell = row._cell_widgets[key]
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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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@ -385,11 +458,11 @@ 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)[0] for quote in pkts]
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qtconvert(quote, symbol_data=sd)[1] for quote in pkts]
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# build out UI
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Builder.load_string(_kv)
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root = BoxLayout(orientation='vertical', padding=5, spacing=-20)
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root = BoxLayout(orientation='vertical', padding=5, spacing=5)
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header = header_row(
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first_quotes[0].keys(),
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size_hint=(1, None),
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