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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
// Copyright 2020 Arthur Sonzogni. All rights reserved.
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// Use of this source code is governed by the MIT license that can be found in
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// the LICENSE file.
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#include <memory> // for make_shared, __shared_ptr_access
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#include <utility> // for move
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#include "ftxui/dom/elements.hpp" // for Element, unpack, Decorator, reflect
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#include "ftxui/dom/node.hpp" // for Node, Elements
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#include "ftxui/dom/requirement.hpp" // for Requirement
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#include "ftxui/screen/box.hpp" // for Box
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#include "ftxui/screen/screen.hpp" // for Screen
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namespace ftxui {
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namespace {
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// Helper class.
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class Reflect : public Node {
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public:
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Reflect(Element child, Box& box)
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: Node(unpack(std::move(child))), reflected_box_(box) {}
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void ComputeRequirement() final {
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Node::ComputeRequirement();
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requirement_ = children_[0]->requirement();
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}
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void SetBox(Box box) final {
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reflected_box_ = box;
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Node::SetBox(box);
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children_[0]->SetBox(box);
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}
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void Render(Screen& screen) final {
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reflected_box_ = Box::Intersection(screen.stencil, reflected_box_);
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Node::Render(screen);
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}
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private:
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Box& reflected_box_;
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};
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} // namespace
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Decorator reflect(Box& box) {
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return [&](Element child) -> Element {
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return std::make_shared<Reflect>(std::move(child), box);
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};
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}
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} // namespace ftxui
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