Add dimension changed event to coloring point dataset

Author: sbvis

src/ColoringAction.cpp

@@ -71,11 +71,24 @@ ColoringAction::ColoringAction(QObject* parent, const QString& title) :
         _constantColorAction.setEnabled(currentIndex == 0);
 
         const auto currentColorDataset = getCurrentColorDataset();
-
+        disconnect(&_currentColorPointsDataset, &Dataset<Points>::dataDimensionsChanged, this, nullptr);
+        _currentColorPointsDataset = Dataset<Points>();
         if (currentColorDataset.isValid()) {
             const auto currentColorDatasetTypeIsPointType = currentColorDataset->getDataType() == PointType;
 
-            _dimensionAction.setPointsDataset(currentColorDatasetTypeIsPointType ? Dataset<Points>(currentColorDataset) : Dataset<Points>());
+            if (currentColorDatasetTypeIsPointType) {
+                _currentColorPointsDataset = currentColorDataset.get<Points>();
+                connect(&_currentColorPointsDataset, &Dataset<Points>::dataDimensionsChanged, this, [this]() {
+                    _dimensionAction.setPointsDataset(_currentColorPointsDataset);
+                    updateScatterPlotWidgetColors();
+                    });
+                _dimensionAction.setPointsDataset(_currentColorPointsDataset);
+
+
+            }
+            else {
+                _dimensionAction.setPointsDataset(Dataset<Points>());
+            }
             //_dimensionAction.setVisible(currentColorDatasetTypeIsPointType);
 
             emit currentColorDatasetChanged(currentColorDataset);

src/ColoringAction.h

@@ -134,6 +134,7 @@ class ColoringAction : public VerticalGroupAction
     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;