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22 lines
770 B
C++
22 lines
770 B
C++
// Copyright (c) 2017-2020, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#pragma once
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#include "ItemNode.hpp"
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namespace gui
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{
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/// General abstraction of `gui::Item`'s parent-children hierarchy with defined traverse order
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class ItemTree
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{
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public:
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[[nodiscard]] virtual auto hasNext() const noexcept -> bool = 0;
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/// Provides wrapper for next `gui::Item` object in traverse order. On call concrete implementations might
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/// change state of the tree by removing node being returned. Must be used in pair with `hasNode()`
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[[nodiscard]] virtual auto getNext() noexcept -> gui::ItemNode = 0;
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virtual ~ItemTree() = default;
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};
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} // namespace gui
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