275 lines
7.8 KiB
Python
275 lines
7.8 KiB
Python
# piker: trading gear for hackers
|
|
# Copyright (C) Tyler Goodlet (in stewardship for piker0)
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Affero General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Affero General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
"""
|
|
Qt UI styling.
|
|
"""
|
|
from typing import Optional, Dict
|
|
import math
|
|
|
|
import pyqtgraph as pg
|
|
from PyQt5 import QtCore, QtGui
|
|
from qdarkstyle import DarkPalette
|
|
|
|
from ..log import get_logger
|
|
|
|
log = get_logger(__name__)
|
|
|
|
_magic_inches = 0.0666 * (1 + 6/16)
|
|
|
|
# chart-wide fonts specified in inches
|
|
_font_sizes: Dict[str, Dict[str, float]] = {
|
|
'hi': {
|
|
'default': _magic_inches,
|
|
'small': 0.9 * _magic_inches,
|
|
},
|
|
'lo': {
|
|
'default': 6.5 / 64,
|
|
'small': 6 / 64,
|
|
},
|
|
}
|
|
|
|
|
|
class DpiAwareFont:
|
|
|
|
def __init__(
|
|
self,
|
|
# TODO: move to config
|
|
name: str = 'Hack',
|
|
font_size: str = 'default',
|
|
# size_in_inches: Optional[float] = None,
|
|
) -> None:
|
|
self.name = name
|
|
self._qfont = QtGui.QFont(name)
|
|
self._font_size: str = font_size
|
|
self._qfm = QtGui.QFontMetrics(self._qfont)
|
|
self._font_inches: float = None
|
|
self._screen = None
|
|
|
|
def _set_qfont_px_size(self, px_size: int) -> None:
|
|
self._qfont.setPixelSize(px_size)
|
|
self._qfm = QtGui.QFontMetrics(self._qfont)
|
|
|
|
@property
|
|
def screen(self) -> QtGui.QScreen:
|
|
from ._window import main_window
|
|
|
|
if self._screen is not None:
|
|
try:
|
|
self._screen.refreshRate()
|
|
except RuntimeError:
|
|
self._screen = main_window().current_screen()
|
|
else:
|
|
self._screen = main_window().current_screen()
|
|
|
|
return self._screen
|
|
|
|
@property
|
|
def font(self):
|
|
return self._qfont
|
|
|
|
def scale(self) -> float:
|
|
screen = self.screen
|
|
return screen.logicalDotsPerInch() / screen.physicalDotsPerInch()
|
|
|
|
@property
|
|
def px_size(self) -> int:
|
|
return self._qfont.pixelSize()
|
|
|
|
def configure_to_dpi(self, screen: Optional[QtGui.QScreen] = None):
|
|
"""Set an appropriately sized font size depending on the screen DPI.
|
|
|
|
If we end up needing to generalize this more here there are resources
|
|
listed in the script in ``snippets/qt_screen_info.py``.
|
|
|
|
"""
|
|
if screen is None:
|
|
screen = self.screen
|
|
|
|
# take the max since scaling can make things ugly in some cases
|
|
pdpi = screen.physicalDotsPerInch()
|
|
ldpi = screen.logicalDotsPerInch()
|
|
mx_dpi = max(pdpi, ldpi)
|
|
mn_dpi = min(pdpi, ldpi)
|
|
scale = round(ldpi/pdpi)
|
|
|
|
if mx_dpi <= 97: # for low dpi use larger font sizes
|
|
inches = _font_sizes['lo'][self._font_size]
|
|
|
|
else: # hidpi use smaller font sizes
|
|
inches = _font_sizes['hi'][self._font_size]
|
|
|
|
dpi = mn_dpi
|
|
|
|
# dpi is likely somewhat scaled down so use slightly larger font size
|
|
if scale > 1 and self._font_size:
|
|
# TODO: this denominator should probably be determined from
|
|
# relative aspect ratios or something?
|
|
inches = inches * (1 / scale) * (1 + 6/16)
|
|
dpi = mx_dpi
|
|
|
|
self._font_inches = inches
|
|
|
|
font_size = math.floor(inches * dpi)
|
|
log.debug(
|
|
f"\nscreen:{screen.name()} with pDPI: {pdpi}, lDPI: {ldpi}"
|
|
f"\nOur best guess font size is {font_size}\n"
|
|
)
|
|
# apply the size
|
|
self._set_qfont_px_size(font_size)
|
|
|
|
def boundingRect(self, value: str) -> QtCore.QRectF:
|
|
|
|
screen = self.screen
|
|
if screen is None:
|
|
raise RuntimeError("You must call .configure_to_dpi() first!")
|
|
|
|
unscaled_br = self._qfm.boundingRect(value)
|
|
|
|
return QtCore.QRectF(
|
|
0,
|
|
0,
|
|
unscaled_br.width(),
|
|
unscaled_br.height(),
|
|
)
|
|
|
|
|
|
# use inches size to be cross-resolution compatible?
|
|
_font = DpiAwareFont()
|
|
_font_small = DpiAwareFont(font_size='small')
|
|
|
|
|
|
def _config_fonts_to_screen() -> None:
|
|
'configure global DPI aware font sizes'
|
|
|
|
global _font, _font_small
|
|
_font.configure_to_dpi()
|
|
_font_small.configure_to_dpi()
|
|
|
|
|
|
# TODO: re-compute font size when main widget switches screens?
|
|
# https://forum.qt.io/topic/54136/how-do-i-get-the-qscreen-my-widget-is-on-qapplication-desktop-screen-returns-a-qwidget-and-qobject_cast-qscreen-returns-null/3
|
|
|
|
# splitter widget config
|
|
_xaxis_at = 'bottom'
|
|
|
|
# charting config
|
|
CHART_MARGINS = (0, 0, 2, 2)
|
|
_min_points_to_show = 6
|
|
_bars_to_left_in_follow_mode = int(61*6)
|
|
_bars_from_right_in_follow_mode = round(0.16 * _bars_to_left_in_follow_mode)
|
|
_tina_mode = False
|
|
|
|
|
|
def enable_tina_mode() -> None:
|
|
"""Enable "tina mode" to make everything look "conventional"
|
|
like your pet hedgehog always wanted.
|
|
"""
|
|
# white background (for tinas like our pal xb)
|
|
pg.setConfigOption('background', 'w')
|
|
|
|
|
|
def hcolor(name: str) -> str:
|
|
"""Hex color codes by hipster speak.
|
|
|
|
This is an internal set of color codes hand picked
|
|
for certain purposes.
|
|
|
|
"""
|
|
return {
|
|
|
|
# lives matter
|
|
'black': '#000000',
|
|
'erie_black': '#1B1B1B',
|
|
'licorice': '#1A1110',
|
|
'papas_special': '#06070c',
|
|
'svags': '#0a0e14',
|
|
|
|
# fifty shades
|
|
'gray': '#808080', # like the kick
|
|
'grayer': '#4c4c4c',
|
|
'grayest': '#3f3f3f',
|
|
'i3': '#494D4F',
|
|
'jet': '#343434',
|
|
'cadet': '#91A3B0',
|
|
'marengo': '#91A3B0',
|
|
'charcoal': '#36454F',
|
|
'gunmetal': '#91A3B0',
|
|
'battleship': '#848482',
|
|
'davies': '#555555',
|
|
'bracket': '#666666', # like the logo
|
|
'original': '#a9a9a9',
|
|
|
|
# from ``qdarkstyle`` palette
|
|
'default_darkest': DarkPalette.COLOR_BACKGROUND_1,
|
|
'default_dark': DarkPalette.COLOR_BACKGROUND_2,
|
|
'default': DarkPalette.COLOR_BACKGROUND_3,
|
|
'default_light': DarkPalette.COLOR_BACKGROUND_4,
|
|
'default_lightest': DarkPalette.COLOR_BACKGROUND_5,
|
|
'default_spotlight': DarkPalette.COLOR_BACKGROUND_6,
|
|
|
|
'white': '#ffffff', # for tinas and sunbathers
|
|
|
|
# blue zone
|
|
'dad_blue': '#326693', # like his shirt
|
|
'vwap_blue': '#0582fb',
|
|
'dodger_blue': '#1e90ff', # like the team?
|
|
'panasonic_blue': '#0040be', # from japan
|
|
# 'bid_blue': '#0077ea', # like the L1
|
|
'bid_blue': '#3094d9', # like the L1
|
|
'aquaman': '#39abd0',
|
|
|
|
# traditional
|
|
'tina_green': '#00cc00',
|
|
'tina_red': '#fa0000',
|
|
|
|
'cucumber': '#006400',
|
|
'cool_green': '#33b864',
|
|
'dull_green': '#74a662',
|
|
'hedge_green': '#518360',
|
|
|
|
# orders and alerts
|
|
'alert_yellow': '#e2d083',
|
|
'alert_yellow_light': '#ffe366',
|
|
|
|
# buys
|
|
# 'hedge': '#768a75',
|
|
# 'hedge': '#41694d',
|
|
# 'hedge': '#558964',
|
|
# 'hedge_light': '#5e9870',
|
|
|
|
'80s_neon_green': '#00b677',
|
|
# 'buy_green': '#41694d',
|
|
'buy_green': '#558964',
|
|
'buy_green_light': '#558964',
|
|
|
|
# sells
|
|
# techincally "raspberry"
|
|
# 'sell_red': '#990036',
|
|
# 'sell_red': '#9A0036',
|
|
|
|
# brighter then above
|
|
# 'sell_red': '#8c0030',
|
|
|
|
'sell_red': '#b6003f',
|
|
# 'sell_red': '#d00048',
|
|
'sell_red_light': '#f85462',
|
|
|
|
# 'sell_red': '#f85462',
|
|
# 'sell_red_light': '#ff4d5c',
|
|
|
|
}[name]
|