[i358] GUI: add missing material form for core and shell (Closes #358)

Merging branch 'i358'  into 'main'.

See merge request !1217

GUI/View/SampleDesigner/CoreAndShellForm.cpp

@@ -19,6 +19,7 @@
 #include "GUI/Model/Sample/ParticleItem.h"
 #include "GUI/Util/ActionFactory.h"
 #include "GUI/View/SampleDesigner/FormLayouter.h"
+#include "GUI/View/SampleDesigner/MaterialInplaceForm.h"
 #include "GUI/View/SampleDesigner/SampleEditorController.h"
 #include "GUI/View/SampleDesigner/SelectionContainerForm.h"
 #include "GUI/View/Tool/GroupBoxCollapser.h"
@@ -162,6 +163,7 @@ void CoreAndShellForm::createCoreWidgets()
         const QString formfactor = FormFactorItemCatalog::menuEntry(particle->formfactorItem());
         groupTitle += " (" + formfactor + ")";
 
+        core.layouter->addRow("Material", new MaterialInplaceForm(this, particle, m_ec));
         core.layouter->addGroupOfValues("Geometry",
                                         particle->formfactorItem()->geometryProperties());
         core.layouter->addVector(particle->position(), false);
@@ -180,6 +182,7 @@ void CoreAndShellForm::createShellWidgets()
         const QString formfactor = FormFactorItemCatalog::menuEntry(particle->formfactorItem());
         groupTitle += " (" + formfactor + ")";
 
+        shell.layouter->addRow("Material", new MaterialInplaceForm(this, particle, m_ec));
         shell.layouter->addGroupOfValues("Geometry",
                                          particle->formfactorItem()->geometryProperties());
         shell.layouter->addSelection(particle->rotation());