ALinearLayout.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/Common/AObject.h>
#include "ALayout.h"
#include <AUI/Traits/concepts.h>
 
class AView;
 
namespace aui::detail {
   template<aui::convertible_to<_<AView>> Storage = _<AView>>
   class LinearLayoutImpl: public ALayout {
   public:
       void removeView(aui::no_escape<AView> view, size_t index) override {
           if constexpr (std::is_same_v<Storage, _<AView>>) {
               AUI_ASSERT(mViews[index].get() == view.ptr());
           }
           mViews.removeAt(index);
       }
 
       AVector<_<AView>> getAllViews() override {
           return { mViews.begin(), mViews.end() };
       }
 
   protected:
       void addViewBasicImpl(Storage view, AOptional<size_t> index) {
           auto at = mViews.end();
           if (index) {
               at = mViews.begin() + *index;
           }
           mViews.insert(at, std::move(view));
       }
 
   protected:
       AVector<Storage> mViews;
   };
 
}

template<aui::convertible_to<_<AView>> Storage = _<AView>>
class ALinearLayout: public aui::detail::LinearLayoutImpl<Storage> {};
 
template<>
class ALinearLayout<_<AView>>: public aui::detail::LinearLayoutImpl<_<AView>> {
public:
   void addView(const _<AView>& view, AOptional<size_t> index) override {
       addViewBasicImpl(view, index);
   }
};

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