Reorder imports in `qt_screen_info.py` ??

For wtv reason on nixos importing `pyqtgraph` first is causing `numpy`
to fail import?? No idea, but likely something to do with recent
`flake.nix`'s ld-lib-linking with `<nixpkgs>` marlarky?

piker/brokers/binance/venues.py

@@ -104,9 +104,6 @@ class Pair(Struct, frozen=True, kw_only=True):
     # https://developers.binance.com/docs/binance-spot-api-docs#future-changes
     pegInstructionsAllowed: bool = False
 
-    # https://developers.binance.com/docs/binance-spot-api-docs#2025-12-02
-    opoAllowed: bool = False
-
     filters: dict[
         str,
         str | int | float,

piker/ui/_style.py

@@ -184,25 +184,22 @@ class DpiAwareFont:
         self._font_inches = inches
         font_size = math.floor(inches * pdpi)
 
-        ftype: str = f'{type(self)!r}'
+        log.debug(
-        log.info(
+            f"screen:{screen.name()}\n"
-            f'screen: {screen.name()}\n'
+            f"pDPI: {pdpi}, lDPI: {ldpi}, scale: {scale}\n"
-            f'pDPI: {pdpi!r}\n'
+            f"\nOur best guess font size is {font_size}\n"
-            f'lDPI: {ldpi!r}\n'
-            f'scale: {scale!r}\n'
-            f'{ftype}._font_inches={self._font_inches!r}\n'
-            f'\n'
-            f"Our best guess for an auto-font-size is,\n"
-            f'font_size: {font_size!r}\n'
         )
         # apply the size
         self._set_qfont_px_size(font_size)
 
     def boundingRect(self, value: str) -> QtCore.QRectF:
-        if (screen := self.screen) is None:
+
+        screen = self.screen
+        if screen is None:
             raise RuntimeError("You must call .configure_to_dpi() first!")
 
-        unscaled_br: QtCore.QRectF = self._qfm.boundingRect(value)
+        unscaled_br = self._qfm.boundingRect(value)
+
         return QtCore.QRectF(
             0,
             0,

snippets/calc_ppi.xsh

@@ -1,64 +0,0 @@
-#!env xonsh
-'''
-Compute the pxs-per-inch (PPI) naively for the local DE.
-
-NOTE, currently this only supports the `sway`-TWM on wayland.
-
-!TODO!
-- [ ] support Xorg (and possibly other OSs as well?
-- [ ] conver this to pure py code, dropping the `.xsh` specifics
-     instead for `subprocess` API calls?
-- [ ] possibly unify all this with `./qt_screen_info.py` as part of
-     a "PPI config wizard" or something, but more then likely we'll
-     have lib-ified version inside modden/piker by then?
-
-'''
-
-import math
-import json
-
-# XXX, xonsh part using "subprocess mode"
-disp_infos: list[dict] = json.loads($(wlr-randr --json))
-lappy: dict = disp_infos[0]
-
-dims: dict[str, int] = lappy['physical_size']
-w_cm: int = dims['width']
-h_cm: int = dims['height']
-
-# cm per inch
-cpi: float = 25.4
-
-# compute "diagonal" size (aka hypot)
-diag_inches: float = math.sqrt((h_cm/cpi)**2 + (w_cm/cpi)**2)
-
-# compute reso-hypot / inches-hypot
-hi_res: dict[str, float|bool] = lappy['modes'][0]
-w_px: int = hi_res['width']
-h_px: int = hi_res['height']
-
-diag_pxs: float = math.sqrt(h_px**2 + w_px**2)
-unscaled_ppi: float = diag_pxs/diag_inches
-
-# retrieve TWM info on the display (including scaling info)
-sway_disp_info: dict = json.loads($(swaymsg -r -t get_outputs))[0]
-scale: float = sway_disp_info['scale']
-
-print(
-    f'output: {sway_disp_info["name"]!r}\n'
-    f'--- DIMENSIONS ---\n'
-    f'w_cm: {w_cm!r}\n'
-    f'h_cm: {h_cm!r}\n'
-    f'w_px: {w_px!r}\n'
-    f'h_cm: {h_px!r}\n'
-    f'\n'
-    f'--- DIAGONALS ---\n'
-    f'diag_inches: {diag_inches!r}\n'
-    f'diag_pxs: {diag_pxs!r}\n'
-    f'\n'
-    f'--- PPI-related-info ---\n'
-    f'(DE reported) scale: {scale!r}\n'
-    f'unscaled PPI: {unscaled_ppi!r}\n'
-    f'|_ =sqrt(h_px**2 + w_px**2) / sqrt(h_in**2 + w_in**2)\n'
-    f'scaled PPI: {unscaled_ppi/scale!r}\n'
-    f'|_ =unscaled_ppi/scale\n'
-)

snippets/qt_screen_info.py

@@ -31,7 +31,6 @@ Resource list for mucking with DPIs on multiple screens:
 - https://doc.qt.io/qt-5/qguiapplication.html#screenAt
 
 '''
-import os
 
 from PyQt6 import (
     QtCore,
@@ -45,12 +44,6 @@ from PyQt6.QtCore import (
 )
 from pyqtgraph import QtGui
 
-
-# https://doc.qt.io/qt-6/highdpi.html#environment-variable-reference
-os.environ['QT_USE_PHYSICAL_DPI'] = '0'
-# TODO? i don't get how this is useful, when i set it it seems
-# the physical-dpi get's computed incorrectly??
-
 # Proper high DPI scaling is available in Qt >= 5.6.0. This attibute
 # must be set before creating the application
 if hasattr(Qt, 'AA_EnableHighDpiScaling'):
@@ -65,22 +58,13 @@ if hasattr(Qt, 'AA_UseHighDpiPixmaps'):
         True,
     )
 
-# NOTE, inherits `QGuiApplication`
-# https://doc.qt.io/qt-6/qapplication.html
-# https://doc.qt.io/qt-6/qguiapplication.html
 app = QtWidgets.QApplication([])
-#
-# ^TODO? various global DPI settings?
-# [ ] DPI rounding policy,
-# - https://doc.qt.io/qt-6/qt.html#HighDpiScaleFactorRoundingPolicy-enum
-# - https://doc.qt.io/qt-6/qguiapplication.html#setHighDpiScaleFactorRoundingPolicy
-
 window = QtWidgets.QMainWindow()
 main_widget = QtWidgets.QWidget()
 window.setCentralWidget(main_widget)
 window.show()
 
-_main_pxr: float = main_widget.devicePixelRatioF()
+pxr: float = main_widget.devicePixelRatioF()
 
 # explicitly get main widget and primary displays
 current_screen: QtGui.QScreen = app.screenAt(
@@ -93,13 +77,7 @@ for screen in app.screens():
     name: str = screen.name()
     model: str = screen.model().rstrip()
     size: QSize = screen.size()
-    geo: QRect = screen.geometry()
+    geo: QRect = screen.availableGeometry()
-
-    # device-pixel-ratio
-    # https://doc.qt.io/qt-6/highdpi.html
-    pxr: float = screen.devicePixelRatio()
-
-    unscaled_size: QSize = pxr * size
     phydpi: float = screen.physicalDotsPerInch()
     logdpi: float = screen.logicalDotsPerInch()
     is_primary: bool = screen is primary_screen
@@ -110,12 +88,11 @@ for screen in app.screens():
         f'|_primary: {is_primary}\n'
         f' _current: {is_current}\n'
         f' _model: {model}\n'
-        f' _size: {size}\n'
+        f' _screen size: {size}\n'
-        f' _geometry: {geo}\n'
+        f' _screen geometry: {geo}\n'
-        f' _devicePixelRatio(): {pxr}\n'
+        f' _devicePixelRationF(): {pxr}\n'
-        f' _unscaled-size: {unscaled_size!r}\n'
+        f' _physical dpi: {phydpi}\n'
-        f' _physical-dpi: {phydpi}\n'
+        f' _logical dpi: {logdpi}\n'
-        f' _logical-dpi: {logdpi}\n'
     )
 
 # app-wide font info
@@ -133,8 +110,8 @@ str_w: int = str_br.width()
 
 print(
     f'------ global font settings ------\n'
-    f'font dpi: {fontdpi!r}\n'
+    f'font dpi: {fontdpi}\n'
-    f'font height: {font_h!r}\n'
+    f'font height: {font_h}\n'
-    f'string bounding rect: {str_br!r}\n'
+    f'string bounding rect: {str_br}\n'
-    f'string width : {str_w!r}\n'
+    f'string width : {str_w}\n'
 )