AListModelAdapter.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#pragma once
 
#include <AUI/Model/IListModel.h>
#include <AUI/Model/IMutableListModel.h>
 
template<typename ItemTo, typename ItemFrom, typename Adapter>
class AListModelAdapter: public IRemovableListModel<ItemTo> {
private:
   _<IListModel<ItemFrom>> mOther;
   IRemovableListModel<ItemFrom>* mOtherMutable;
   Adapter mAdapter;
 
public:
   using value_type = ItemTo;
 
   explicit AListModelAdapter(const _<IListModel<ItemFrom>>& other, Adapter&& adapter) :
           mOther(other),
           mAdapter(std::forward<Adapter>(adapter)) {
       mOtherMutable = dynamic_cast<IRemovableListModel<ItemFrom>*>(mOther.get());
       AObject::connect(other->dataChanged, this, [&](const AListModelRange<ItemFrom>& r){
           emit this->dataChanged(this->range(r.getBegin(), r.getEnd()));
       });
       AObject::connect(other->dataInserted, this, [&](const AListModelRange<ItemFrom>& r){
           emit this->dataInserted(this->range(r.getBegin(), r.getEnd()));
       });
       AObject::connect(other->dataRemoved, this, [&](const AListModelRange<ItemFrom>& r){
           emit this->dataRemoved(this->range(r.getBegin(), r.getEnd()));
       });
   }
 
   ~AListModelAdapter() override = default;
 
   size_t listSize() override {
       return mOther->listSize();
   }
 
   ItemTo listItemAt(const AListModelIndex& index) override {
       return mAdapter(mOther->listItemAt(index));
   }
 
 
   void removeItems(const AListModelRange<ItemTo>& items) override {
       AUI_NULLSAFE(mOtherMutable)->removeItems({items.begin().getIndex(), items.end().getIndex(), mOther});
   }
 
   void removeItems(const AListModelSelection<ItemTo>& items) override {
       AUI_NULLSAFE(mOtherMutable)->removeItems({items.getIndices(), mOther});
   }
 
   void removeItem(const AListModelIndex& item) override {
       AUI_NULLSAFE(mOtherMutable)->removeItem(item);
   }
 
};
 
namespace AModels {
   template <typename ItemTo, typename Container, typename Adapter>
   auto adapt(const _<Container>& other, Adapter&& adapter) -> _<AListModelAdapter<ItemTo, typename Container::value_type, Adapter>> {
       return aui::ptr::manage(new AListModelAdapter<ItemTo, typename Container::value_type, Adapter>(other, std::forward<Adapter>(adapter)));
   }
}

© 2025 AUI Framework Contributors. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. All trademarks are property of their respective owners.