ParticleLayoutItem: use SelectionVector

GUI/Model/Sample/ParticleLayoutItem.cpp

@@ -72,26 +72,19 @@ double ParticleLayoutItem::totalDensityValue() const
 
 QVector<ItemWithParticles*> ParticleLayoutItem::itemsWithParticles() const
 {
-    QVector<ItemWithParticles*> output;
-    for (const auto& sel : m_particles)
-        output.append(sel.currentItem());
-    return output;
+    return m_particles.toQVector();
 }
 
 SelectionProperty<ItemWithParticlesCatalog>&
 ParticleLayoutItem::addItemWithParticleSelection(ItemWithParticles* particle)
 {
-    SelectionProperty<ItemWithParticlesCatalog> newParticleSelection;
-    newParticleSelection.setCurrentItem(particle);
-    m_particles.push_back(std::move(newParticleSelection));
+    m_particles.push_back(particle);
     return m_particles.back();
 }
 
 void ParticleLayoutItem::removeItemWithParticle(ItemWithParticles* particle)
 {
-    for (size_t i = 0; i < m_particles.size(); i++)
-        if (m_particles[i].currentItem() == particle)
-            m_particles.erase(m_particles.begin() + i);
+    m_particles.delete_element(particle);
 }
 
 QVector<ItemWithParticles*> ParticleLayoutItem::containedItemsWithParticles() const

GUI/Model/Sample/ParticleLayoutItem.h

@@ -83,7 +83,7 @@ public:
 private:
     DoubleProperty m_ownDensity;
     SelectionProperty<InterferenceItemCatalog> m_interference;
-    std::vector<SelectionProperty<ItemWithParticlesCatalog>> m_particles;
+    SelectionVector<ItemWithParticlesCatalog> m_particles;
     const MaterialModel* m_materialModel;
     bool m_expandParticleLayout = true;
     bool m_expandInterference = true;