rm unfinished undo/redo engine (#757)

This resolves #757 (closed).

GUI/View/SampleDesigner/SampleEditorController.h

@@ -17,13 +17,13 @@
 
 #include "GUI/Model/Sample/FormFactorItemCatalog.h"
 #include "GUI/Model/Sample/ItemWithParticlesCatalog.h"
-#include <QUndoStack>
+#include <QObject>
 
-class ISelectionContainerForm;
-class ISelectionProperty;
 class CompoundItem;
 class CoreAndShellForm;
 class DoubleProperty;
+class ISelectionContainerForm;
+class ISelectionProperty;
 class InterferenceForm;
 class InterferenceItem;
 class Item3D;
@@ -34,17 +34,19 @@ class LayerForm;
 class LayerItem;
 class MaterialModel;
 class MesocrystalForm;
-class SampleForm;
-class SampleItem;
 class ParticleLayoutItem;
 class ProjectDocument;
+class SampleForm;
+class SampleItem;
 class SelectionContainerForm;
 
 //! Class to modify a sample from the layer oriented sample editor.
 //!
-//! Use this class to modify the sample model. It takes care of notifications and creating undo/redo
-//! commands.
+//! Use this class to modify the sample model. It takes care of notifications.
 //! It operates on one SampleItem.
+//!
+//! Originally, it also supported undo/redo (never completed, withdrawn in release 22).
+
 class SampleEditorController : public QObject {
     Q_OBJECT
 public:
@@ -62,9 +64,6 @@ public:
     //! The item on which this controller operates.
     SampleItem* sampleItem() const;
 
-    //! The contained undo stack.
-    QUndoStack* undoStack();
-
     //! The materials of the current document
     MaterialModel* materialModel() const;
 
@@ -74,10 +73,8 @@ public:
     void addLayerItem(LayerItem* before);
     QColor findColor(int atIndex);
     void onLayerAdded(LayerItem* layer);
-    void addLayerItemFromUndo(int atIndex);
     void duplicateLayerItem(const LayerItem* layer);
     void removeLayerItem(LayerItem* layer);
-    void removeLayerItemFromUndo(int atIndex);
 
     void onLayoutAdded(LayerForm* layerForm, ParticleLayoutItem* layout);
     void addLayoutItem(LayerForm* layerForm);
@@ -103,15 +100,14 @@ public:
     void setMesocrystalBasis(MesocrystalForm* widget, ItemWithParticlesCatalog::Type type);
     void setMesocrystalBasis(MesocrystalForm* widget, FormFactorItemCatalog::Type type);
     void selectInterference(InterferenceForm* widget, int newIndex);
-    void setIntegrateOverXi(LatticeTypeSelectionForm* widget, bool newValue);
+    void setIntegrateOverXi(LatticeTypeSelectionForm* widget, bool value);
 
-    void setDouble(double newValue, DoubleProperty& d);
-    void setDoubleFromUndo(double newValue, const QString& path);
+    void setDouble(double value, DoubleProperty& d);
 
     void setCurrentIndex(ISelectionContainerForm* widget, int index, ISelectionProperty& d);
 
     void selectMaterial(ItemWithMaterial* item, const QString& newMaterialIdentifier);
-    void setMaterialValue(ItemWithMaterial* item, double newValue, DoubleProperty& d);
+    void setMaterialValue(ItemWithMaterial* item, double value, DoubleProperty& d);
 
     //! Set an interference function's value which affects the total particle density of the
     //! containing particle layout.
@@ -119,7 +115,7 @@ public:
     //! Some values in interference settings affect the total density in the particle layout which
     //! contains this interference function. Call this method to provide all the related updating
     //! (data & UI).
-    void setDensityRelatedValue(InterferenceItem* interferenceItem, double newValue,
+    void setDensityRelatedValue(InterferenceItem* interferenceItem, double value,
                                 DoubleProperty& d);
 
     void onStoppedToMoveLayer(QWidget* widgetToMove, QWidget* moveAboveThisWidget);
@@ -136,8 +132,6 @@ private:
     ItemWithParticles* createAndInitItem(FormFactorItemCatalog::Type formFactorType) const;
     ItemWithParticles* createAndInitItem(ItemWithParticlesCatalog::Type itemType) const;
 
-private:
-    QUndoStack m_undoStack;
     SampleItem* m_sampleItem;
     SampleForm* m_sampleForm;
     ProjectDocument* m_document;