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fix DpiAwareFont default size calculation #48

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momo wants to merge 11 commits from dpi-font-auto-calc into main
pull from: dpi-font-auto-calc
merge into: pikers:main
Conversation 16 Commits 11 Files Changed 12

11 Commits (main)

Author SHA1 Message Date
di1ara 88a9ae4144 improve ui zoom defaults 2026-03-13 13:44:42 -04:00
Gud Boi 10b5ded55d Fix chart axis scaling on UI zoom level change 
Again a patch (vibed) from our very own @dnks
(just a commit msg reworking using his new `/commit-msg` skill added by
@goodboy B)

Deats,
- add `Axis.update_fonts()` to recalculate tick font, text offset,
  bounding rect and `pyqtgraph`'s internal text-width/height tracking
  after a zoom change; store `_typical_max_str` at init for later reuse.
- rework `PriceAxis.size_to_values()` and
  `DynamicDateAxis.size_to_values()` to use pyqtgraph's
  `_updateWidth()`/`_updateHeight()` with `updateGeometry()` instead of
  raw `setWidth()`/ `setHeight()` so auto-expand constraints are
  respected.
- fix `GlobalZoomEventFilter` to mask out `KeypadModifier` and
  explicitly require both Ctrl+Shift, letting plain Ctrl+Plus/Minus pass
  through to chart zoom.
- add `_update_chart_axes()` to walk all plot-item axes during
  `_apply_zoom()` and call `splits.resize_sidepanes()` to sync subplot
  widths.

(this commit msg, and likely patch, was generated in some part by
[`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
 2026-03-13 13:44:42 -04:00
Gud Boi 81c3e8f7e6 Add global UI font-size zoom scaling (from @dnks) 
Add `Ctrl+Shift+Plus/Minus/0` shortcuts for zooming all
UI widget font sizes via a `GlobalZoomEventFilter`
installed at the `QApplication` level.

Deats,
- `.ui._window`: add `GlobalZoomEventFilter` event
  filter class and `MainWindow.zoom_in/out/reset_zoom()`
  methods that reconfigure `DpiAwareFont` with a
  `zoom_level` multiplier then propagate to all child
  widgets.
- `.ui._style`: extend `DpiAwareFont.configure_to_dpi()`
  and `_config_fonts_to_screen()` to accept a
  `zoom_level` float multiplier; cast `px_size` to `int`.
- `.ui._forms`: add `update_fonts()` to `Edit`,
  `Selection`, `FieldsForm` and `FillStatusBar` for
  stylesheet regen.
- `.ui._label`: add `FormatLabel.update_font()` method.
- `.ui._position`: add `SettingsPane.update_fonts()`.
- `.ui._search`: add `update_fonts()` to `CompleterView`
  and `SearchWidget`.
- `.ui._exec`: install the zoom filter on window show.
- `.ui.qt`: import `QObject` from `PyQt6`.

(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
 2026-03-13 13:44:27 -04:00
Tyler Goodlet 392640fd51 Add `.xsh` script mentioned in gitea #50 
Note since it's actually `xonsh` code run with either,
- most pedantically: `xonsh ./snippets/calc_ppi.xsh`
- or relying on how shebang: `./snippets/calc_ppi.xsh`
  * an sheboom.
 2026-03-13 13:43:19 -04:00
Tyler Goodlet 03253e1cd6 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?
 2026-03-13 13:43:19 -04:00
Tyler Goodlet 1c22e91b73 Add some Qt DPI extras to `qt_screen_info.py` 
- set `QT_USE_PHYSICAL_DPI='1'` env var for Qt6 high-DPI
  * we likely want to do this in `piker.ui` as well!
- move `pxr` calc from widget to per-screen in loop.
- add `unscaled_size` calc using `pxr * size`.
- switch from `.availableGeometry()` to `.geometry()` for full
  bounds.
- shorten output labels, add `!r` repr formatting
- add Qt6 DPI rounding policy TODO with doc links

(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
 2026-03-13 13:43:19 -04:00
Tyler Goodlet 2112858d07 Re-fmt and `.info()` the `.configure_to_dpi()` DPI calcs for now 2026-03-13 13:43:19 -04:00
di1ara f60282048e fixed spacing 2026-03-13 13:43:19 -04:00
di1ara 45a6459563 fixed pytest test for dpi font auto calculation 2026-03-13 13:43:19 -04:00
di1ara 91f3127fec added pytest, moved dependencies 2026-03-13 13:43:19 -04:00
di1ara ca0fba4610 fix DpiAwareFont default size calculation 2026-03-13 13:43:19 -04:00