mirror of
https://github.com/OPM/ResInsight.git
synced 2026-10-30 17:10:19 -05:00
Magne Sjaastad
aaa95bdcf3
Replace the class-level static_assert with a DerivedFromPdmObject concept checked inside the constructor body. The constructor is lazily instantiated, so T can be forward-declared at the point PdmObjectCollection<T> is used as a base class.
103 lines
3.8 KiB
C++
103 lines
3.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2025 Equinor ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "cafPdmChildArrayField.h"
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#include "cafPdmObject.h"
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#include <concepts>
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#include <vector>
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namespace caf
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{
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//==================================================================================================
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///
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/// Constrains a template parameter to types deriving from caf::PdmObject.
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///
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/// Checked via `static_assert` inside a lazily-instantiated member function (the constructor)
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/// rather than as a class-template constraint, so that T may be forward-declared at the point
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/// the class template is instantiated as a base class.
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///
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//==================================================================================================
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template <typename T>
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concept DerivedFromPdmObject = std::derived_from<T, PdmObject>;
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//==================================================================================================
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///
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/// Generic templated collection base class for managing collections of PDM objects
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///
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/// This template provides common collection operations (add, remove, insert, etc.) and UI
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/// integration for any type of PDM object. Derived classes can add domain-specific functionality.
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///
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/// Template parameter:
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/// T - Item type, must inherit from caf::PdmObject
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///
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/// Derived classes must call the base constructor with field name and display name.
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///
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//==================================================================================================
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template <typename T>
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class PdmObjectCollection : public PdmObject
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{
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public:
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// Collection access
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std::vector<T*> items() const;
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size_t count() const;
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bool isEmpty() const;
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PdmChildArrayField<T*>& itemsField();
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const PdmChildArrayField<T*>& itemsField() const;
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// CRUD operations
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void addItem( T* item );
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void insertItem( T* insertBefore, T* item );
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void deleteItem( T* item );
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void deleteAllItems();
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// Creation helper
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T* createDefaultItem();
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// UI integration
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void updateConnectedEditors();
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protected:
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// Constructor (protected - only derived classes can instantiate)
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// Derived classes MUST initialize m_items field using CAF_PDM_InitFieldNoDefault
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PdmObjectCollection();
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~PdmObjectCollection() override;
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// Virtual hook for derived class customization
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// Called when items are added, removed, or the collection is modified
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virtual void onItemsChanged();
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// PdmObject overrides
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void fieldChangedByUi( const PdmFieldHandle* changedField, const QVariant& oldValue, const QVariant& newValue ) override;
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void defineUiOrdering( QString uiConfigName, PdmUiOrdering& uiOrdering ) override;
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void defineEditorAttribute( const PdmFieldHandle* field, QString uiConfigName, PdmUiEditorAttribute* attribute ) override;
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// Protected member - derived classes can access for advanced operations
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PdmChildArrayField<T*> m_items;
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private:
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void onChildDeleted( PdmChildArrayFieldHandle* childArray, std::vector<PdmObjectHandle*>& referringObjects ) override;
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};
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} // namespace caf
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// Include template implementation
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#include "cafPdmObjectCollection.inl" |