Edit > Preferences > Enhanced Controls > Enable Gestures (enhancedControls.touchGestures)
was saved but read by nothing, so it was hidden from the dialog. Now, with it off, two
fingers on a touch screen no longer zoom the canvas or the Navigator, nor turn the view.
The mouse and trackpad behave as before, including a trackpad pinch or Rotate event that
arrives while fingers rest on the screen.
- wheel_nav: pinch_factor() drops egui's multi-touch zoom when gestures are off and keeps
the trackpad's own Event::Zoom (Windows' folded Ctrl + wheel pinch included);
read_with() takes the preference.
- rotate_view: trackpad_delta() only falls back to the multi-touch rotation while gestures
are on; Rotate events always count.
- canvas, Navigator: pass the preference through.
- prefs: touchGestures leaves HIDDEN_UNTIL_IMPLEMENTED, so the dialog shows it.
- Tests: synthetic two-finger pinch and twist, on and off, and the trackpad events with
gestures off.
- docs/scorecard.md regenerated: settings that do nothing 26 -> 25 of 168.
Nguyễn Minh Long
72a3423a7e