added multi-result aggregation

Author: rozyczko

EasyReflectometryApp/Backends/Mock/Analysis.qml

@@ -25,6 +25,7 @@ QtObject {
     readonly property string fitErrorMessage: ''
     readonly property int fitNumRefinedParams: 3
     readonly property real fitChi2: 1.2345
+    readonly property var fitResults: ({ success: true, nvarys: 3, chi2: 1.2345 })
 
     // Fit failure signal (mirrors Python backend)
     signal fitFailed(string message)

EasyReflectometryApp/Backends/Py/analysis.py

@@ -98,6 +98,15 @@ def fitNumRefinedParams(self) -> int:
     def fitChi2(self) -> float:
         return self._fitting_logic.fit_chi2
 
+    @Property('QVariant', notify=fittingChanged)
+    def fitResults(self) -> dict:
+        """Return fit results as a dict for QML consumption."""
+        return {
+            'success': self._fitting_logic.fit_success,
+            'nvarys': self._fitting_logic.fit_n_pars,
+            'chi2': self._fitting_logic.fit_chi2,
+        }
+
     @Slot(None)
     def fittingStartStop(self) -> None:
         # If already running, stop the fit

EasyReflectometryApp/Backends/Py/logic/fitting.py

@@ -47,6 +47,9 @@ def show_results_dialog(self, value: bool) -> None:
 
     @property
     def fit_success(self) -> bool:
+        """Return True if all fits succeeded."""
+        if self._results:
+            return all(r.success for r in self._results)
         if self._result is None:
             return False
         return self._result.success
@@ -145,12 +148,21 @@ def on_fit_finished(self, results: List[FitResults]) -> None:
 
     @property
     def fit_n_pars(self) -> int:
+        """Return total number of refined parameters across all fits."""
+        if self._results:
+            return sum(r.n_pars for r in self._results)
         if self._result is None:
             return 0
         return self._result.n_pars
 
     @property
     def fit_chi2(self) -> float:
+        """Return total chi-squared across all fits."""
+        if self._results:
+            try:
+                return float(sum(r.chi2 for r in self._results))
+            except (ValueError, TypeError):
+                return 0.0
         if self._result is None:
             return 0.0
         try:

EasyReflectometryApp/Gui/Globals/BackendWrapper.qml

@@ -262,6 +262,7 @@ QtObject {
     readonly property string analysisFitErrorMessage: activeBackend.analysis.fitErrorMessage
     readonly property int analysisFitNumRefinedParams: activeBackend.analysis.fitNumRefinedParams
     readonly property real analysisFitChi2: activeBackend.analysis.fitChi2
+    readonly property var analysisFitResults: activeBackend.analysis.fitResults
     function analysisFittingStartStop() { activeBackend.analysis.fittingStartStop() }
     function analysisSetShowFitResultsDialog(value) { activeBackend.analysis.setShowFitResultsDialog(value) }
     function analysisStopFit() { activeBackend.analysis.stopFit() }