Add dimension changed event to coloring point dataset

src/ColoringAction.cpp

@@ -72,10 +72,33 @@ ColoringAction::ColoringAction(QObject* parent, const QString& title) :
 
         const auto currentColorDataset = getCurrentColorDataset();
 
-        if (currentColorDataset.isValid()) {
-            const auto currentColorDatasetTypeIsPointType = currentColorDataset->getDataType() == PointType;
+        if (_currentColorPointsDataset.isValid()) {
+            disconnect(&_currentColorPointsDataset, &Dataset<Points>::dataDimensionsChanged, this, nullptr);
+        }
 
-            _dimensionAction.setPointsDataset(currentColorDatasetTypeIsPointType ? Dataset<Points>(currentColorDataset) : Dataset<Points>());
+        _currentColorPointsDataset = Dataset<Points>();
+
+        if (currentColorDataset.isValid()) {
+            if (currentColorDataset->getDataType() == PointType) {
+                _currentColorPointsDataset = currentColorDataset.get<Points>();
+
+                if (_currentColorPointsDataset.isValid()) {
+                    connect(&_currentColorPointsDataset, &Dataset<Points>::dataDimensionsChanged, this, [this]() {
+                        if (_currentColorPointsDataset.isValid()) {
+                            _dimensionAction.setPointsDataset(_currentColorPointsDataset);
+                            updateScatterPlotWidgetColors();
+                        }
+					});
+
+                    _dimensionAction.setPointsDataset(_currentColorPointsDataset);
+                }
+                else {
+                    _dimensionAction.setPointsDataset(Dataset<Points>());
+                }
+            }
+            else {
+                _dimensionAction.setPointsDataset(Dataset<Points>());
+            }
             //_dimensionAction.setVisible(currentColorDatasetTypeIsPointType);
 
             emit currentColorDatasetChanged(currentColorDataset);

src/ColoringAction.h

@@ -127,13 +127,14 @@ class ColoringAction : public VerticalGroupAction
     void currentColorDatasetChanged(Dataset<DatasetImpl> currentColorDataset);
 
 private:
-    ScatterplotPlugin*      _scatterplotPlugin;     /** Pointer to scatter plot plugin */
-    ColorSourceModel        _colorByModel;          /** Color by model (model input for the color by action) */
-    OptionAction            _colorByAction;         /** Action for picking the coloring type */
-    ColorAction             _constantColorAction;   /** Action for picking the constant color */
-    DimensionPickerAction   _dimensionAction;       /** Dimension picker action */
-    ColorMap1DAction        _colorMap1DAction;      /** One-dimensional color map action */
-    ColorMap2DAction        _colorMap2DAction;      /** Two-dimensional color map action */
+    ScatterplotPlugin*      _scatterplotPlugin;             /** Pointer to scatter plot plugin */
+    ColorSourceModel        _colorByModel;                  /** Color by model (model input for the color by action) */
+    OptionAction            _colorByAction;                 /** Action for picking the coloring type */
+    ColorAction             _constantColorAction;           /** Action for picking the constant color */
+    DimensionPickerAction   _dimensionAction;               /** Dimension picker action */
+    ColorMap1DAction        _colorMap1DAction;              /** One-dimensional color map action */
+    ColorMap2DAction        _colorMap2DAction;              /** Two-dimensional color map action */
+    Dataset<Points>         _currentColorPointsDataset;     /** Current color dataset */
 
     /** Default constant color */
     static const QColor DEFAULT_CONSTANT_COLOR;