Invalidate dataset picker filters

Add DatasetsAction::invalidateDatasetPickerActionFilters() (declared in the header and implemented) which calls invalidateFilter() on all dataset picker actions (_position, _color, _pointSize, _pointOpacity). Update ScatterplotPlugin::init() to call this new method instead of setupDatasetPickerActions() when initializing so picker filters are refreshed to reflect the current datasets without reinitializing the actions.

Author: ThomasKroes

src/DatasetsAction.cpp

@@ -244,3 +244,11 @@ void DatasetsAction::setupPointOpacityDatasetPickerAction(ScatterplotPlugin* sca
             _pointOpacityDatasetPickerAction.setCurrentIndex(-1);
     });
 }
+
+void DatasetsAction::invalidateDatasetPickerActionFilters()
+{
+    _positionDatasetPickerAction.invalidateFilter();
+    _colorDatasetPickerAction.invalidateFilter();
+    _pointSizeDatasetPickerAction.invalidateFilter();
+    _pointOpacityDatasetPickerAction.invalidateFilter();
+}

src/DatasetsAction.h

@@ -85,6 +85,9 @@ class DatasetsAction : public GroupAction
      */
     void setupPointOpacityDatasetPickerAction(ScatterplotPlugin* scatterplotPlugin);
 
+    /** Update the filters of the dataset picker actions based on the current datasets in the scatter plot plugin */
+    void invalidateDatasetPickerActionFilters();
+
 public: // Action getters
 
     DatasetPickerAction& getPositionDatasetPickerAction() { return _positionDatasetPickerAction; }

src/ScatterplotPlugin.cpp

@@ -411,10 +411,10 @@ void ScatterplotPlugin::init()
 
     if (mv::projects().isOpeningProject()) {
         connect(&mv::projects(), &AbstractProjectManager::projectOpened, this, [this, &datasetsAction]() -> void {
-            datasetsAction.setupDatasetPickerActions(this);
+            datasetsAction.invalidateDatasetPickerActionFilters();
         });
     } else {
-        datasetsAction.setupDatasetPickerActions(this);
+        datasetsAction.invalidateDatasetPickerActionFilters();
     }
 }