Exclude crypto futes from `without_src` sym key

Extend the `col_sym_key` asset-type check in `start_backfill()`
to also exclude crypto-denominated futures (where `src` is
`'crypto_currency'` and `dst` is `'future'`) from the
`without_src=True` fqme path.

Also in `.brokers.binance` backend (it being the guilty culprit in the
discovery of this bug; and why i touched styling this code),

- reformat `make_sub()` fn sig to multiline style in
  `.binance.feed`.
- add backtick around `dict` in `make_sub()` docstring.
- reformat `or` conditionals to multiline style in
  `.binance.feed.get_mkt_info()`.

(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code

piker/brokers/deribit/api.py

@@ -586,7 +586,7 @@ async def open_price_feed(
                 fh,
                 instrument
             )
-        ) as (chan, first):
+        ) as (first, chan):
             yield chan
 
 
@@ -653,7 +653,7 @@ async def open_order_feed(
                 fh,
                 instrument
             )
-        ) as (chan, first):
+        ) as (first, chan):
             yield chan
 
 

piker/brokers/ib/api.py

@@ -1529,7 +1529,7 @@ async def open_client_proxies() -> tuple[
             # TODO: maybe this should be the default in tractor?
             key=tractor.current_actor().uid,
 
-        ) as (cache_hit, (_, clients)),
+        ) as (cache_hit, (clients, _)),
 
         AsyncExitStack() as stack
     ):
@@ -1718,7 +1718,7 @@ async def open_client_proxy(
             open_aio_client_method_relay,
             client=client,
             event_consumers=event_table,
-        ) as (chan, first),
+        ) as (first, chan),
 
         trionics.collapse_eg(),  # loose-ify
         trio.open_nursery() as relay_tn,

piker/brokers/ib/broker.py

@@ -514,8 +514,8 @@ async def open_trade_event_stream(
         recv_trade_updates,
         client=client,
     ) as (
-        trade_event_stream,
         _,  # first pushed val
+        trade_event_stream,
     ):
         task_status.started(trade_event_stream)
         # block forever to keep session trio-asyncio session

piker/brokers/ib/feed.py

@@ -989,7 +989,7 @@ async def open_aio_quote_stream(
         symbol=symbol,
         contract=contract,
 
-    ) as (from_aio, contract):
+    ) as (contract, from_aio):
 
         assert contract
 

piker/ui/_axes.py

@@ -75,9 +75,6 @@ class Axis(pg.AxisItem):
         self.pi = plotitem
         self._dpi_font = _font
 
-        # store for later recalculation on zoom
-        self._typical_max_str = typical_max_str
-
         self.setTickFont(_font.font)
         font_size = self._dpi_font.font.pixelSize()
 
@@ -159,41 +156,6 @@ class Axis(pg.AxisItem):
     def size_to_values(self) -> None:
         pass
 
-    def update_fonts(self, font: DpiAwareFont) -> None:
-        '''Update font and recalculate axis sizing after zoom change.'''
-        # IMPORTANT: tell Qt we're about to change geometry
-        self.prepareGeometryChange()
-
-        self._dpi_font = font
-        self.setTickFont(font.font)
-        font_size = font.font.pixelSize()
-
-        # recalculate text offset based on new font size
-        text_offset = None
-        if self.orientation in ('bottom',):
-            text_offset = floor(0.25 * font_size)
-        elif self.orientation in ('left', 'right'):
-            text_offset = floor(font_size / 2)
-
-        if text_offset:
-            self.setStyle(tickTextOffset=text_offset)
-
-        # recalculate bounding rect with new font
-        # Note: typical_max_str should be stored from init
-        if not hasattr(self, '_typical_max_str'):
-            self._typical_max_str = '100 000.000  '  # fallback default
-        self.typical_br = font._qfm.boundingRect(self._typical_max_str)
-
-        # Update PyQtGraph's internal text size tracking
-        # This is critical - PyQtGraph uses these internally for auto-expand
-        if self.orientation in ['left', 'right']:
-            self.textWidth = self.typical_br.width()
-        else:
-            self.textHeight = self.typical_br.height()
-
-        # resize axis to fit new font - this triggers PyQtGraph's auto-expand
-        self.size_to_values()
-
     def txt_offsets(self) -> tuple[int, int]:
         return tuple(self.style['tickTextOffset'])
 
@@ -294,14 +256,7 @@ class PriceAxis(Axis):
         self._min_tick = size
 
     def size_to_values(self) -> None:
-        # Call PyQtGraph's internal width update mechanism
+        self.setWidth(self.typical_br.width())
-        # This respects autoExpandTextSpace and updates min/max constraints
-        self._updateWidth()
-        # tell Qt our preferred size changed so layout recalculates
-        self.updateGeometry()
-        # force parent plot item to recalculate its layout
-        if self.pi and hasattr(self.pi, 'updateGeometry'):
-            self.pi.updateGeometry()
 
     # XXX: drop for now since it just eats up h space
 
@@ -345,14 +300,7 @@ class DynamicDateAxis(Axis):
     }
 
     def size_to_values(self) -> None:
-        # Call PyQtGraph's internal height update mechanism
+        self.setHeight(self.typical_br.height() + 1)
-        # This respects autoExpandTextSpace and updates min/max constraints
-        self._updateHeight()
-        # tell Qt our preferred size changed so layout recalculates
-        self.updateGeometry()
-        # force parent plot item to recalculate its layout
-        if self.pi and hasattr(self.pi, 'updateGeometry'):
-            self.pi.updateGeometry()
 
     def _indexes_to_timestrs(
         self,

piker/ui/_exec.py

@@ -203,9 +203,6 @@ def run_qtractor(
     if is_windows:
         window.configure_to_desktop()
 
-    # install global keyboard shortcuts for UI zoom
-    window.install_global_zoom_filter()
-
     # actually render to screen
     window.show()
     app.exec_()

piker/ui/_forms.py

@@ -124,13 +124,6 @@ class Edit(QLineEdit):
         self.sizeHint()
         self.update()
 
-    def update_fonts(self, font: DpiAwareFont) -> None:
-        '''Update font and recalculate widget size.'''
-        self.dpi_font = font
-        self.setFont(font.font)
-        # tell Qt our size hint changed so it recalculates layout
-        self.updateGeometry()
-
     def focus(self) -> None:
         self.selectAll()
         self.show()
@@ -248,14 +241,6 @@ class Selection(QComboBox):
         icon_size = round(h * 0.75)
         self.setIconSize(QSize(icon_size, icon_size))
 
-    def update_fonts(self, font: DpiAwareFont) -> None:
-        '''Update font and recalculate widget size.'''
-        self.setFont(font.font)
-        # recalculate heights with new font
-        self.resize()
-        # tell Qt our size hint changed so it recalculates layout
-        self.updateGeometry()
-
     def set_items(
         self,
         keys: list[str],
@@ -446,39 +431,6 @@ class FieldsForm(QWidget):
         self.fields[key] = select
         return select
 
-    def update_fonts(self) -> None:
-        '''Update font sizes after zoom change.'''
-        from ._style import _font, _font_small
-
-        # update stored font size
-        self._font_size = _font_small.px_size - 2
-
-        # update all labels
-        for name, label in self.labels.items():
-            if hasattr(label, 'update_font'):
-                label.update_font(_font.font, self._font_size - 1)
-
-        # update all fields (edits, selects)
-        for key, field in self.fields.items():
-            # first check for our custom update_fonts method (Edit, Selection)
-            if hasattr(field, 'update_fonts'):
-                field.update_fonts(_font)
-            # then handle stylesheet updates for those without custom methods
-            elif hasattr(field, 'setStyleSheet'):
-                # regenerate stylesheet with new font size
-                field.setStyleSheet(
-                    f"""QLineEdit {{
-                        color : {hcolor('gunmetal')};
-                        font-size : {self._font_size}px;
-                    }}
-                    """
-                )
-                field.setFont(_font.font)
-
-            # for Selection widgets that need style updates
-            if hasattr(field, 'set_style'):
-                field.set_style(color='gunmetal', font_size=self._font_size)
-
 
 async def handle_field_input(
 
@@ -681,37 +633,6 @@ class FillStatusBar(QProgressBar):
         self.setRange(0, int(slots))
         self.setValue(value)
 
-    def update_fonts(self, font_size: int) -> None:
-        '''Update font size after zoom change.'''
-        from ._style import _font_small
-
-        self.font_size = font_size
-        # regenerate stylesheet with new font size
-        self.setStyleSheet(
-            f"""
-            QProgressBar {{
-
-                text-align: center;
-
-                font-size : {self.font_size - 2}px;
-
-                background-color: {hcolor('papas_special')};
-                color : {hcolor('papas_special')};
-
-                border: {self.border_px}px solid {hcolor('default_light')};
-                border-radius: 2px;
-            }}
-            QProgressBar::chunk {{
-
-                background-color: {hcolor('default_spotlight')};
-                color: {hcolor('bracket')};
-
-                border-radius: 2px;
-            }}
-            """
-        )
-        self.setFont(_font_small.font)
-
 
 def mk_fill_status_bar(
 

piker/ui/_label.py

@@ -334,19 +334,3 @@ class FormatLabel(QLabel):
         out = self.fmt_str.format(**fields)
         self.setText(out)
         return out
-
-    def update_font(
-        self,
-        font: QtGui.QFont,
-        font_size: int,
-        font_color: str = 'default_lightest',
-    ) -> None:
-        '''Update font after zoom change.'''
-        self.setStyleSheet(
-            f"""QLabel {{
-                color : {hcolor(font_color)};
-                font-size : {font_size}px;
-            }}
-            """
-        )
-        self.setFont(font)

piker/ui/_position.py

@@ -178,26 +178,6 @@ class SettingsPane:
     # encompasing high level namespace
     order_mode: OrderMode | None = None  # typing: ignore # noqa
 
-    def update_fonts(self) -> None:
-        '''Update font sizes after zoom change.'''
-        from ._style import _font_small
-
-        # update form fields
-        if self.form and hasattr(self.form, 'update_fonts'):
-            self.form.update_fonts()
-
-        # update fill status bar
-        if self.fill_bar and hasattr(self.fill_bar, 'update_fonts'):
-            self.fill_bar.update_fonts(_font_small.px_size)
-
-        # update labels with new fonts
-        if self.step_label:
-            self.step_label.setFont(_font_small.font)
-        if self.pnl_label:
-            self.pnl_label.setFont(_font_small.font)
-        if self.limit_label:
-            self.limit_label.setFont(_font_small.font)
-
     def set_accounts(
         self,
         names: list[str],

piker/ui/_search.py

@@ -174,13 +174,6 @@ class CompleterView(QTreeView):
 
         self.setStyleSheet(f"font: {size}px")
 
-    def update_fonts(self) -> None:
-        '''Update font sizes after zoom change.'''
-        self.set_font_size(_font.px_size)
-        self.setIndentation(_font.px_size)
-        self.setFont(_font.font)
-        self.updateGeometry()
-
     def resize_to_results(
         self,
         w: float | None = 0,
@@ -637,29 +630,6 @@ class SearchWidget(QtWidgets.QWidget):
             | align_flag.AlignLeft,
         )
 
-    def update_fonts(self) -> None:
-        '''Update font sizes after zoom change.'''
-        # regenerate label stylesheet with new font size
-        self.label.setStyleSheet(
-            f"""QLabel {{
-                color : {hcolor('default_lightest')};
-                font-size : {_font.px_size - 2}px;
-            }}
-            """
-        )
-        self.label.setFont(_font.font)
-
-        # update search bar and view fonts
-        if hasattr(self.bar, 'update_fonts'):
-            self.bar.update_fonts(_font)
-        elif hasattr(self.bar, 'setFont'):
-            self.bar.setFont(_font.font)
-
-        if hasattr(self.view, 'update_fonts'):
-            self.view.update_fonts()
-
-        self.updateGeometry()
-
     def focus(self) -> None:
         self.show()
         self.bar.focus()

piker/ui/_style.py

@@ -79,13 +79,9 @@ class DpiAwareFont:
         self._font_inches: float = None
         self._screen = None
 
-    def _set_qfont_px_size(
+    def _set_qfont_px_size(self, px_size: int) -> None:
-        self,
+        self._qfont.setPixelSize(px_size)
-        px_size: int,
-    ) -> int:
-        self._qfont.setPixelSize(int(px_size))
         self._qfm = QtGui.QFontMetrics(self._qfont)
-        return self.px_size
 
     @property
     def screen(self) -> QtGui.QScreen:
@@ -128,22 +124,17 @@ class DpiAwareFont:
 
         return size
 
-    def configure_to_dpi(
+    def configure_to_dpi(self, screen: QtGui.QScreen | None = None):
-        self,
-        screen: QtGui.QScreen | None = None,
-        zoom_level: float = 1.0,
-    ) -> int:
         '''
-        Set an appropriately sized font size depending on the screen DPI
+        Set an appropriately sized font size depending on the screen DPI.
-        or scale the size according to `zoom_level`.
 
-        If we end up needing to generalize this more here there are
+        If we end up needing to generalize this more here there are resources
-        resources listed in the script in
+        listed in the script in ``snippets/qt_screen_info.py``.
-        ``snippets/qt_screen_info.py``.
 
         '''
         if self._font_size is not None:
-            return self._set_qfont_px_size(self._font_size * zoom_level)
+            self._set_qfont_px_size(self._font_size)
+            return
 
         # NOTE: if no font size set either in the [ui] section of the
         # config or not yet computed from our magic scaling calcs,
@@ -162,7 +153,7 @@ class DpiAwareFont:
             ldpi = pdpi
 
         mx_dpi = max(pdpi, ldpi)
-        # mn_dpi = min(pdpi, ldpi)
+        mn_dpi = min(pdpi, ldpi)
         scale = round(ldpi/pdpi, ndigits=2)
 
         if mx_dpi <= 97:  # for low dpi use larger font sizes
@@ -171,7 +162,7 @@ class DpiAwareFont:
         else:  # hidpi use smaller font sizes
             inches = _font_sizes['hi'][self._font_size_calc_key]
 
-        # dpi = mn_dpi
+        dpi = mn_dpi
 
         mult = 1.0
 
@@ -206,25 +197,24 @@ class DpiAwareFont:
         # always going to hit that error in range mapping from inches:
         # float to px size: int.
         self._font_inches = inches
-        font_size = math.floor(inches * pdpi)
+        font_size = math.floor(inches * dpi)
-
-        # apply zoom level multiplier
-        font_size = int(font_size * zoom_level)
 
         log.debug(
             f"screen:{screen.name()}\n"
             f"pDPI: {pdpi}, lDPI: {ldpi}, scale: {scale}\n"
-            f"zoom_level: {zoom_level}\n"
             f"\nOur best guess font size is {font_size}\n"
         )
         # apply the size
-        return self._set_qfont_px_size(font_size)
+        self._set_qfont_px_size(font_size)
 
     def boundingRect(self, value: str) -> QtCore.QRectF:
-        if 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,
@@ -238,22 +228,12 @@ _font = DpiAwareFont()
 _font_small = DpiAwareFont(_font_size_key='small')
 
 
-def _config_fonts_to_screen(
+def _config_fonts_to_screen() -> None:
-    zoom_level: float = 1.0
+    'configure global DPI aware font sizes'
-) -> int:
-    '''
-    Configure global DPI aware font size(s).
 
-    If `zoom_level` is provided we apply it to auto-calculated
-    DPI-aware font.
-
-    Return the new `DpiAwareFont.px_size`.
-
-    '''
     global _font, _font_small
-    _font.configure_to_dpi(zoom_level=zoom_level)
+    _font.configure_to_dpi()
-    _font_small.configure_to_dpi(zoom_level=zoom_level)
+    _font_small.configure_to_dpi()
-    return _font.px_size
 
 
 def get_fonts() -> tuple[

piker/ui/_window.py

@@ -18,7 +18,6 @@
 Qt main window singletons and stuff.
 
 """
-from __future__ import annotations
 import os
 import signal
 import time
@@ -39,107 +38,15 @@ from piker.ui.qt import (
     QScreen,
     QCloseEvent,
     QSettings,
-    QEvent,
-    QObject,
 )
 from ..log import get_logger
-from . import _style
+from ._style import _font_small, hcolor
-from ._style import (
-    _font_small,
-    hcolor,
-)
 from ._widget import GodWidget
 
 
 log = get_logger(__name__)
 
 
-class GlobalZoomEventFilter(QObject):
-    '''
-    Application-level event filter for global UI zoom shortcuts.
-
-    This filter intercepts keyboard events BEFORE they reach widgets,
-    allowing us to implement global UI zoom shortcuts that take precedence
-    over widget-specific shortcuts.
-
-    Shortcuts:
-    - Ctrl+Shift+Plus/Equal: Zoom in
-    - Ctrl+Shift+Minus: Zoom out
-    - Ctrl+Shift+0: Reset zoom
-
-    '''
-    def __init__(self, main_window: MainWindow):
-        super().__init__()
-        self.main_window = main_window
-
-    def eventFilter(self, obj: QObject, event: QEvent) -> bool:
-        '''
-        Filter keyboard events for global zoom shortcuts.
-
-        Returns True to filter out (consume) the event, False to pass through.
-
-        '''
-        if event.type() == QEvent.Type.KeyPress:
-            key = event.key()
-            mods = event.modifiers()
-
-            # Mask out the KeypadModifier which Qt sometimes adds
-            mods = mods & ~Qt.KeyboardModifier.KeypadModifier
-
-            # Check if we have Ctrl+Shift (both required)
-            has_ctrl = bool(
-                mods
-                &
-                Qt.KeyboardModifier.ControlModifier
-            )
-            _has_shift = bool(
-                mods
-                &
-                Qt.KeyboardModifier.ShiftModifier
-            )
-
-            # Only handle UI zoom if BOTH Ctrl and Shift are pressed
-            # For Plus key: user presses Cmd+Shift+Equal (which makes Plus)
-            # For Minus key: user presses Cmd+Shift+Minus
-            if (
-                has_ctrl
-                # and
-                # has_shift
-            ):
-                # Zoom in: Ctrl+Shift+Plus
-                # Note: Plus key usually comes as Key_Equal with Shift modifier
-                if key in (
-                    Qt.Key.Key_Plus,
-                    Qt.Key.Key_Equal,
-                ):
-                    self.main_window.zoom_in()
-                    return True  # consume event
-
-                # Zoom out: Ctrl+Shift+Minus
-                # Note: On some keyboards Shift+Minus produces '_' (Underscore)
-                elif key in (
-                    Qt.Key.Key_Minus,
-                    Qt.Key.Key_Underscore,
-                ):
-                    self.main_window.zoom_out()
-                    return True  # consume event
-
-                # Reset zoom: Ctrl+Shift+0
-                # Note: On some keyboards Shift+0 produces ')' (ParenRight)
-                elif key in (
-                    Qt.Key.Key_0,
-                    Qt.Key.Key_ParenRight,
-                ):
-                    self.main_window.reset_zoom()
-                    return True  # consume event
-
-            # Pass through if only Ctrl (no Shift) - this goes to chart zoom
-            # Pass through all other events too
-            return False
-
-        return False
-
-
 class MultiStatus:
 
     bar: QStatusBar
@@ -282,24 +189,6 @@ class MainWindow(QMainWindow):
             self.restoreGeometry(geometry)
             log.debug('Restored window geometry from previous session')
 
-        # zoom level for UI scaling (1.0 = 100%, 1.5 = 150%, etc)
-        # Change this value to set the default startup zoom level
-        self._zoom_level: float = 1.0  # Start at 100% (normal)
-        self._min_zoom: float = 0.5
-        self._max_zoom: float = 3.0  # Reduced from 10.0 to prevent extreme cropping
-        self._zoom_step: float = 0.2  # 20% per keypress
-
-        # event filter for global zoom shortcuts
-        self._zoom_filter: GlobalZoomEventFilter | None = None
-
-    def install_global_zoom_filter(self) -> None:
-        '''Install application-level event filter for global UI zoom shortcuts.'''
-        if self._zoom_filter is None:
-            self._zoom_filter = GlobalZoomEventFilter(self)
-            app = QApplication.instance()
-            app.installEventFilter(self._zoom_filter)
-            log.info('Installed global zoom shortcuts: Ctrl+Shift+Plus/Minus/0')
-
     @property
     def mode_label(self) -> QLabel:
 
@@ -468,201 +357,6 @@ class MainWindow(QMainWindow):
         self.godwidget.on_win_resize(event)
         event.accept()
 
-    def zoom_in(self) -> None:
-        '''
-        Increase overall UI-widgets zoom level by scaling it the
-        global font sizes.
-
-        '''
-        new_zoom: float = min(
-            self._zoom_level + self._zoom_step,
-            self._max_zoom,
-        )
-        if new_zoom != self._zoom_level:
-            self._zoom_level = new_zoom
-            font_size: int = self._apply_zoom()
-            log.info(
-                f'Zoomed in UI\n'
-                f'zoom_step: {self._zoom_step!r}\n'
-                f'zoom_level(%): {self._zoom_level:.1%}\n'
-                f'font_size: {font_size!r}'
-            )
-
-    def zoom_out(self) -> float:
-        '''
-        Decrease UI zoom level.
-
-        '''
-        new_zoom: float = max(self._zoom_level - self._zoom_step, self._min_zoom)
-        if new_zoom != self._zoom_level:
-            self._zoom_level = new_zoom
-            font_size: int = self._apply_zoom()
-            log.info(
-                f'Zoomed out UI\n'
-                f'zoom_step: {self._zoom_step!r}\n'
-                f'zoom_level(%): {self._zoom_level:.1%}\n'
-                f'font_size: {font_size!r}'
-            )
-
-        return new_zoom
-
-    def reset_zoom(self) -> None:
-        '''
-        Reset UI zoom to 100%.
-
-        '''
-        if self._zoom_level != 1.0:
-            self._zoom_level = 1.0
-            font_size: int = self._apply_zoom()
-            log.info(
-                f'Reset zoom level\n'
-                f'zoom_step: {self._zoom_step!r}\n'
-                f'zoom_level(%): {self._zoom_level:.1%}\n'
-                f'font_size: {font_size!r}'
-            )
-
-        return self._zoom_level
-
-    def _apply_zoom(self) -> int:
-        '''
-        Apply current zoom level to all UI elements.
-
-        '''
-        # reconfigure fonts with zoom multiplier
-        font_size: int = _style._config_fonts_to_screen(
-            zoom_level=self._zoom_level
-        )
-
-        # update status bar styling with new font size
-        if self._status_bar:
-            sb = self.statusBar()
-            sb.setStyleSheet((
-                f"color : {hcolor('gunmetal')};"
-                f"background : {hcolor('default_dark')};"
-                f"font-size : {_style._font_small.px_size}px;"
-                "padding : 0px;"
-            ))
-
-        # force update of mode label if it exists
-        if self._status_label:
-            self._status_label.setFont(_style._font_small.font)
-
-        # update godwidget and its children
-        if self.godwidget:
-            # update search widget if it exists
-            if hasattr(self.godwidget, 'search') and self.godwidget.search:
-                self.godwidget.search.update_fonts()
-
-            # update order mode panes in all chart views
-            self._update_chart_order_panes()
-
-            # recursively update all other widgets with stylesheets
-            self._refresh_widget_fonts(self.godwidget)
-            self.godwidget.update()
-
-        return font_size
-
-    def _update_chart_order_panes(self) -> None:
-        '''
-        Update order entry panels in all charts.
-
-        '''
-        if not self.godwidget:
-            return
-
-        # iterate through all linked splits (hist and rt)
-        for splits_name in ['hist_linked', 'rt_linked']:
-            splits = getattr(self.godwidget, splits_name, None)
-            if not splits:
-                continue
-
-            # get main chart
-            chart = getattr(splits, 'chart', None)
-            if chart:
-                # update axes
-                self._update_chart_axes(chart)
-
-                # update order pane
-                if hasattr(chart, 'view'):
-                    view = chart.view
-                    if hasattr(view, 'order_mode') and view.order_mode:
-                        order_mode = view.order_mode
-                        if hasattr(order_mode, 'pane') and order_mode.pane:
-                            order_mode.pane.update_fonts()
-
-            # also check subplots
-            subplots = getattr(splits, 'subplots', {})
-            for name, subplot_chart in subplots.items():
-                # update subplot axes
-                self._update_chart_axes(subplot_chart)
-
-                # update subplot order pane
-                if hasattr(subplot_chart, 'view'):
-                    subplot_view = subplot_chart.view
-                    if hasattr(subplot_view, 'order_mode') and subplot_view.order_mode:
-                        subplot_order_mode = subplot_view.order_mode
-                        if hasattr(subplot_order_mode, 'pane') and subplot_order_mode.pane:
-                            subplot_order_mode.pane.update_fonts()
-
-            # resize all sidepanes to match main chart's sidepane width
-            # this ensures volume/subplot sidepanes match the main chart
-            if splits and hasattr(splits, 'resize_sidepanes'):
-                splits.resize_sidepanes()
-
-    def _update_chart_axes(self, chart) -> None:
-        '''Update axis fonts and sizing for a chart.'''
-        from . import _style
-
-        # update price axis (right side)
-        if hasattr(chart, 'pi') and chart.pi:
-            plot_item = chart.pi
-            # get all axes from plot item
-            for axis_name in ['left', 'right', 'bottom', 'top']:
-                axis = plot_item.getAxis(axis_name)
-                if axis and hasattr(axis, 'update_fonts'):
-                    axis.update_fonts(_style._font)
-
-            # force plot item to recalculate its entire layout
-            plot_item.updateGeometry()
-
-            # force chart widget to update
-            if hasattr(chart, 'updateGeometry'):
-                chart.updateGeometry()
-
-            # trigger a full scene update
-            if hasattr(chart, 'update'):
-                chart.update()
-
-    def _refresh_widget_fonts(self, widget: QWidget) -> None:
-        '''
-        Recursively update font sizes in all child widgets.
-
-        This handles widgets that have font-size hardcoded in their stylesheets.
-        '''
-        from . import _style
-
-        # recursively process all children
-        for child in widget.findChildren(QWidget):
-            # skip widgets that have their own update_fonts method (handled separately)
-            if hasattr(child, 'update_fonts'):
-                continue
-
-            # update child's stylesheet if it has font-size
-            child_stylesheet = child.styleSheet()
-            if child_stylesheet and 'font-size' in child_stylesheet:
-                # for labels and simple widgets, regenerate stylesheet
-                # this is a heuristic - may need refinement
-                try:
-                    child.setFont(_style._font.font)
-                except (AttributeError, RuntimeError):
-                    pass
-
-            # update child's font
-            try:
-                child.setFont(_style._font.font)
-            except (AttributeError, RuntimeError):
-                pass
-
 
 # singleton app per actor
 _qt_win: QMainWindow = None

piker/ui/qt.py

@@ -42,7 +42,6 @@ from PyQt6.QtCore import (
     QSize,
     QModelIndex,
     QItemSelectionModel,
-    QObject,
     pyqtBoundSignal,
     pyqtRemoveInputHook,
     QSettings,

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

@@ -31,8 +31,8 @@ Resource list for mucking with DPIs on multiple screens:
 - https://doc.qt.io/qt-5/qguiapplication.html#screenAt
 
 '''
-import os
 
+from pyqtgraph import QtGui
 from PyQt6 import (
     QtCore,
     QtWidgets,
@@ -43,11 +43,6 @@ from PyQt6.QtCore import (
     QSize,
     QRect,
 )
-from pyqtgraph import QtGui
-
-
-# https://doc.qt.io/qt-6/highdpi.html#environment-variable-reference
-os.environ['QT_USE_PHYSICAL_DPI'] = '1'
 
 # Proper high DPI scaling is available in Qt >= 5.6.0. This attibute
 # must be set before creating the application
@@ -63,22 +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(
@@ -91,13 +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
@@ -108,12 +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
@@ -131,8 +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'
 )

tests/test_dpi_font.py

@@ -1,36 +0,0 @@
-import pytest
-from piker.ui._style import DpiAwareFont
-
-
-class MockScreen:
-    def __init__(self, pdpi, ldpi, name="MockScreen"):
-        self._pdpi = pdpi
-        self._ldpi = ldpi
-        self._name = name
-
-    def physicalDotsPerInch(self):
-        return self._pdpi
-
-    def logicalDotsPerInch(self):
-        return self._ldpi
-
-    def name(self):
-        return self._name
-
-
-@pytest.mark.parametrize(
-    "pdpi, ldpi, expected_px",
-    [
-        (96, 96, 9),       # normal DPI
-        (169, 96, 15),     # HiDPI
-        (120, 96, 10),     # mid-DPI
-    ]
-)
-def test_font_px_size(pdpi, ldpi, expected_px):
-    font = DpiAwareFont()
-    font.configure_to_dpi(screen=MockScreen(pdpi, ldpi))
-
-    px = font.px_size
-    print(f"{pdpi}x{ldpi} DPI -> Computed pixel size: {px}")
-
-    assert px == expected_px