Add support for notification when adding/removing items.

arcane/src/arcane/core/ArcaneTypes.h

@@ -118,6 +118,8 @@ class MeshBuildInfo;
 class MeshKind;
 class IPrimaryMesh;
 class IMeshInitialAllocator;
+class ItemFamilyCompactInfos;
+class ItemFamilyItemListChangedEventArgs;
 class ItemPairEnumerator;
 class ItemInfoListView;
 class ItemGenericInfoListView;
@@ -147,6 +149,14 @@ class IParallelMngInternal;
 class IIOMng;
 class ITimerMng;
 class IThreadMng;
+class ItemUniqueId;
+class IItemConnectivityInfo;
+class IItemConnectivity;
+class IItemInternalSortFunction;
+class IItemConnectivityMng;
+class Properties;
+class IItemFamilyTopologyModifier;
+class IItemFamilyPolicyMng;
 enum class eMeshStructure;
 enum class eMeshAMRKind;
 
@@ -549,6 +559,18 @@ class AcceleratorRuntimeInitialisationInfo;
 using Accelerator::IAcceleratorMng;
 using Accelerator::AcceleratorRuntimeInitialisationInfo;
 
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+// Déclarations de types utilisés pour les classes 'friend'.
+namespace mesh
+{
+class DynamicMesh;
+class ItemFamily;
+class ItemSharedInfoWithType;
+class DynamicMeshKindInfos;
+class ItemDataList;
+}
+
 /*---------------------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
 

arcane/src/arcane/core/IItemFamily.h

@@ -1,57 +1,30 @@
 // -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
 //-----------------------------------------------------------------------------
-// Copyright 2000-2023 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
+// Copyright 2000-2025 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
 // See the top-level COPYRIGHT file for details.
 // SPDX-License-Identifier: Apache-2.0
 //-----------------------------------------------------------------------------
 /*---------------------------------------------------------------------------*/
-/* IItemFamily.h                                               (C) 2000-2024 */
+/* IItemFamily.h                                               (C) 2000-2025 */
 /*                                                                           */
 /* Interface d'une famille d'entités.                                        */
 /*---------------------------------------------------------------------------*/
-#ifndef ARCANE_IITEMFAMILY_H
-#define ARCANE_IITEMFAMILY_H
+#ifndef ARCANE_CORE_IITEMFAMILY_H
+#define ARCANE_CORE_IITEMFAMILY_H
 /*---------------------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
 
-#include "arcane/ArcaneTypes.h"
-#include "arcane/ItemTypes.h"
-#include "arcane/VariableTypedef.h"
-#include "arcane/Parallel.h"
+#include "arcane/core/ArcaneTypes.h"
+#include "arcane/core/ItemTypes.h"
+#include "arcane/core/VariableTypedef.h"
+#include "arcane/core/Parallel.h"
 
 /*---------------------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
 
 namespace Arcane
 {
 
-/*---------------------------------------------------------------------------*/
-/*---------------------------------------------------------------------------*/
-
-class IParallelMng;
-class IDataOperation;
-class ItemUniqueId;
-class IItemInternalSortFunction;
-class IVariableSynchronizer;
-class IParticleFamily;
-class GroupIndexTable;
-class IItemConnectivityInfo;
-class IItemConnectivityMng;
-class IItemConnectivity;
-class IExtraGhostItemsBuilder;
-class IIncrementalItemConnectivity;
-class IItemFamilyPolicyMng;
-class IItemFamilyTopologyModifier;
-class ItemInternalConnectivityList;
-class Properties;
-
-namespace mesh
-{
-  class ItemDataList;
-  class DynamicMesh;
-  class ItemFamily;
-}
-
 /*---------------------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
 /*!
@@ -109,8 +82,8 @@ namespace mesh
  */
 class ARCANE_CORE_EXPORT IItemFamily
 {
-  friend class mesh::DynamicMesh;
-  friend class mesh::ItemFamily;
+  friend mesh::DynamicMesh;
+  friend mesh::ItemFamily;
 
  public:
 
@@ -706,6 +679,11 @@ class ARCANE_CORE_EXPORT IItemFamily
   //! Propriétés associées à cette famille.
   virtual Properties* properties() =0;
 
+ public:
+
+  //! Evènement pour l'ajout et la suppression d'entité
+  virtual EventObservableView<const ItemFamilyItemListChangedEventArgs&> itemListChangedEvent() = 0;
+
  public:
 
   /*!

arcane/src/arcane/core/ItemFamilyItemListChangedEventArgs.h

@@ -0,0 +1,73 @@
+// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
+//-----------------------------------------------------------------------------
+// Copyright 2000-2025 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
+// See the top-level COPYRIGHT file for details.
+// SPDX-License-Identifier: Apache-2.0
+//-----------------------------------------------------------------------------
+/*---------------------------------------------------------------------------*/
+/* ItemFamilyItemListChangedEventArgs.h                        (C) 2000-2025 */
+/*                                                                           */
+/* Arguments de l'évènement pour l'ajout ou la supression d'entités.         */
+/*---------------------------------------------------------------------------*/
+#ifndef ARCANE_CORE_ITEMFAMILYITEMLISTCHANGEDARGS_H
+#define ARCANE_CORE_ITEMFAMILYITEMLISTCHANGEDARGS_H
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
+#include "arcane/utils/ArrayView.h"
+#include "arcane/utils/UtilsTypes.h"
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
+namespace Arcane
+{
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+/*!
+ * \ingroup Mesh
+ * \brief Arguments de l'évènement pour l'ajout ou la supression d'entités.
+ */
+class ARCANE_CORE_EXPORT ItemFamilyItemListChangedEventArgs
+{
+  friend mesh::DynamicMeshKindInfos;
+
+ private:
+
+  //! Constructeur. Uniquement pour DynamicMeshKindInfos.
+  ItemFamilyItemListChangedEventArgs() = default;
+  ItemFamilyItemListChangedEventArgs(IItemFamily* item_family, Int32 local_id, Int64 unique_id)
+  : m_item_family(item_family)
+  , m_local_id(local_id)
+  , m_unique_id(unique_id)
+  {}
+
+ public:
+
+  IItemFamily* itemFamily() const { return m_item_family; }
+  Int32 localId() const { return m_local_id; }
+  Int64 uniqueId() const { return m_unique_id; }
+  bool isAdd() const { return m_is_add; }
+
+ public:
+
+  void setIsAdd(bool v) { m_is_add = v; }
+
+ private:
+
+  IItemFamily* m_item_family = nullptr;
+  Int32 m_local_id = NULL_ITEM_LOCAL_ID;
+  Int64 m_unique_id = NULL_ITEM_UNIQUE_ID;
+  bool m_is_add = false;
+};
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
+} // namespace Arcane
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
+#endif

arcane/src/arcane/core/srcs.cmake

@@ -307,6 +307,7 @@ set(ARCANE_ORIGINAL_SOURCES
   ItemEnumerator.h
   ItemEnumeratorBase.h
   ItemFamilyCompactInfos.h
+  ItemFamilyItemListChangedEventArgs.h
   ItemFamilySerializeArgs.h
   ItemFlags.h
   ItemFunctor.cc

arcane/src/arcane/mesh/DynamicMeshKindInfos.cc

@@ -1,11 +1,11 @@
 // -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
 //-----------------------------------------------------------------------------
-// Copyright 2000-2024 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
+// Copyright 2000-2025 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
 // See the top-level COPYRIGHT file for details.
 // SPDX-License-Identifier: Apache-2.0
 //-----------------------------------------------------------------------------
 /*---------------------------------------------------------------------------*/
-/* DynamicMeshKindInfos.cc                                     (C) 2000-2024 */
+/* DynamicMeshKindInfos.cc                                     (C) 2000-2025 */
 /*                                                                           */
 /* Infos de maillage pour un genre d'entité donnée.                          */
 /*---------------------------------------------------------------------------*/
@@ -27,6 +27,7 @@
 #include "arcane/core/ItemFamilyCompactInfos.h"
 #include "arcane/core/IMeshCompacter.h"
 #include "arcane/core/MeshPartInfo.h"
+#include "arcane/core/ItemFamilyItemListChangedEventArgs.h"
 
 #include "arcane/mesh/DynamicMeshKindInfos.h"
 #include "arcane/mesh/ItemFamily.h"
@@ -916,6 +917,37 @@
 /*---------------------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
 
+EventObservableView<const ItemFamilyItemListChangedEventArgs&> DynamicMeshKindInfos::
+itemListChangedEvent()
+{
+  return EventObservableView<const ItemFamilyItemListChangedEventArgs&>(m_item_list_change_event);
+}
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
+void DynamicMeshKindInfos::
+_notifyRemove2(ItemInternal* item)
+{
+  ItemFamilyItemListChangedEventArgs args(m_item_family,item->localId(),item->uniqueId());
+  m_item_list_change_event.notify(args);
+  args.setIsAdd(false);
+}
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
+void DynamicMeshKindInfos::
+_notifyAdd2(ItemInternal* item,Int64 uid)
+{
+  ItemFamilyItemListChangedEventArgs args(m_item_family,item->localId(),uid);
+  args.setIsAdd(true);
+  m_item_list_change_event.notify(args);
+}
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
 } // End namespace Arcane::mesh
 
 /*---------------------------------------------------------------------------*/