在单位回退时就近提示缺少可用标定

让实时和回放的原始单位回退原因出现在力曲线单位按钮旁。相关定向测试与 lint gate 通过。

apps/studio/config/locales/en_US.json

@@ -504,7 +504,7 @@
     "finger_run_unavailable": "Run is not available for this sensor type",
     "video_required": "Select a video file first",
     "config_missing": "Sensor config not found for {type}",
-    "units_raw_fallback": "Calibration unavailable — showing raw units",
+    "units_raw_fallback": "No usable calibration; showing raw for now",
     "reveal_failed": "Could not reveal config: {error}"
   },
   "scene3d": {

apps/studio/config/locales/zh_CN.json

@@ -504,7 +504,7 @@
     "finger_run_unavailable": "此传感器类型暂不支持运行",
     "video_required": "请先选择视频文件",
     "config_missing": "未找到传感器配置: {type}",
-    "units_raw_fallback": "无标定数据 — 显示原始单位",
+    "units_raw_fallback": "无可用标定，暂显示原始单位",
     "reveal_failed": "无法打开配置位置: {error}"
   },
   "scene3d": {

apps/studio/src/orisys_studio/acquire_presenter.py

@@ -152,6 +152,7 @@ class AcquirePresenter(QObject):
             if not self._host.session.raw_fallback_notified:
                 self._host.session.raw_fallback_notified = True
                 self._host.notify(t("status.units_raw_fallback"))
+                self._charts.show_unit_fallback()
         else:
             self._host.session.raw_fallback_notified = False
         self._host.session.last_sample_valid = True

apps/studio/src/orisys_studio/replay_controller.py

@@ -1411,6 +1411,7 @@ class ReplayController(QObject):
             self._host.set_display_unit(unit)
             if unit != wanted:
                 self._host.notify(t("status.units_raw_fallback"))
+                self._charts.show_unit_fallback()
             self._charts.show_all()
             self._image_panel.set_source_kind("replay")
             return
@@ -1483,6 +1484,7 @@ class ReplayController(QObject):
         wanted = "N" if self._charts.unit() == "N" else "raw"
         if wanted == "N" and not source.unit_available("N"):
             self._host.notify(t("status.units_raw_fallback"))
+            self._charts.show_unit_fallback()
             return "raw"
         return wanted
 

apps/studio/src/orisys_studio/ui/force_plots.py

@@ -16,7 +16,7 @@ from orisys_app_shared.force.source import StoreCurveSource
 from orisys_app_shared.i18n import t
 from orisys_app_shared.record.sample import plottable_axis_mask
 from orisys_app_shared.theme import color
-from PySide6.QtCore import QSize, Qt, Signal
+from PySide6.QtCore import QSize, Qt, QTimer, Signal
 from PySide6.QtGui import QColor, QFont, QFontDatabase, QFontMetrics
 from PySide6.QtWidgets import (
     QFrame,
@@ -252,6 +252,13 @@ class ForcePlotsPanel(QFrame):
         self.btn_settings = self._header_button("settings")
         self.btn_settings.clicked.connect(self.plot_settings_requested.emit)
         header.addWidget(self.btn_settings)
+        self.unit_notice = QLabel()
+        self.unit_notice.setObjectName("hintText")
+        self.unit_notice.hide()
+        header.addWidget(self.unit_notice)
+        self._unit_notice_timer = QTimer(self)
+        self._unit_notice_timer.setSingleShot(True)
+        self._unit_notice_timer.timeout.connect(self.unit_notice.hide)
         # The unit chip is a button: switching between newton and raw is a chart
         # concern, so it lives on the chart.
         self.unit_badge = QPushButton()
@@ -733,6 +740,12 @@ class ForcePlotsPanel(QFrame):
             self._last_overview_at = now
             self._sync_overview()
 
+    def show_unit_fallback(self) -> None:
+        """Explain a failed Newton switch beside the unit control."""
+        self.unit_notice.setText(t("status.units_raw_fallback"))
+        self.unit_notice.show()
+        self._unit_notice_timer.start(6000)
+
     def set_units(self, unit: str) -> None:
         """Switch display units without mixing units in the curve buffer.
 
@@ -742,6 +755,9 @@ class ForcePlotsPanel(QFrame):
         cleared rather than reinterpreted.
         """
         unit = "N" if str(unit).upper().startswith("N") else "raw"
+        if unit == "N":
+            self._unit_notice_timer.stop()
+            self.unit_notice.hide()
         if unit == self._unit:
             return
         self._unit = unit
@@ -1450,6 +1466,7 @@ class ForcePlotsPanel(QFrame):
         self.btn_settings.setAccessibleName(t("chart.settings"))
         self.unit_badge.setToolTip(t("chart.unit_toggle_tip"))
         self.unit_badge.setAccessibleName(t("chart.unit_toggle"))
+        self.unit_notice.setText(t("status.units_raw_fallback"))
         self.window_caption.setText(t("chart.overview"))
         self.window_caption.setToolTip(t("chart.window_tip"))
         self._refresh_mode_label()

apps/studio/tests/test_force_plots_display.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import numpy as np
+from orisys_app_shared.i18n import t
 from orisys_studio.ui.force_plots import ForcePlotsPanel, _nice_ticks
 
 
@@ -28,6 +29,19 @@ def _curve(panel: ForcePlotsPanel, channel: int) -> np.ndarray:
 
 
 # ------------------------------------------------------------- force output
+def test_missing_calibration_notice_sits_beside_unit_button(qt_app):
+    panel = _panel("raw")
+    assert not panel.unit_notice.isVisible()
+    panel.show_unit_fallback()
+    assert panel.unit_notice.text() == t("status.units_raw_fallback")
+    assert not panel.unit_notice.isHidden()
+    header = panel.layout().itemAt(0).layout()
+    assert header.itemAt(header.count() - 2).widget() is panel.unit_notice
+    assert header.itemAt(header.count() - 1).widget() is panel.unit_badge
+    panel.set_units("N")
+    assert panel.unit_notice.isHidden()
+
+
 def test_raw_threshold_and_precision_match_cards_and_curve(qt_app):
     panel = _panel("raw")
     panel.set_deadband_floors(raw=50.0)

apps/studio/tests/test_replay_controller.py

@@ -111,6 +111,7 @@ class _Charts:
         self.followed = 0
         self.shown = 0
         self.cleared = 0
+        self.unit_fallbacks = 0
 
     def unit(self) -> str:
         return self._unit
@@ -134,6 +135,9 @@ class _Charts:
     def show_all(self) -> None:
         self.shown += 1
 
+    def show_unit_fallback(self) -> None:
+        self.unit_fallbacks += 1
+
 
 class _ImagePanel:
     def __init__(self) -> None:
@@ -584,6 +588,7 @@ def test_the_charts_fall_back_to_raw_when_a_recording_has_no_newtons(qt_app):
     assert engine.units[-1] == "raw"
     assert host.units[-1] == "raw"
     assert t("status.units_raw_fallback") in host.notes
+    assert parts[1].unit_fallbacks == 1
 
     engine._reader = _Reader(newtons=[1.0, 2.0, 3.0])
     controller.apply_source(True)