# FTXUI: dbox.cpp Source File

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src/ftxui/dom/dbox.cpp
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// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.
#include <algorithm> // for max
#include <cstddef> // for size_t
#include <memory> // for __shared_ptr_access, shared_ptr, make_shared
#include <utility> // for move
#include <vector>
#include "ftxui/dom/elements.hpp" // for Element, Elements, dbox
#include "ftxui/dom/node.hpp" // for Node, Elements
#include "ftxui/dom/requirement.hpp" // for Requirement
#include "ftxui/screen/box.hpp" // for Box
#include "ftxui/screen/pixel.hpp" // for Pixel
namespace ftxui {
namespace {
class DBox : public Node {
public:
explicit DBox(Elements children) : Node(std::move(children)) {}
void ComputeRequirement() override {
requirement_ = Requirement{};
for (auto& child : children_) {
child->ComputeRequirement();
// Propagate the focused requirement.
if (requirement_.focused.Prefer(child->requirement().focused)) {
requirement_.focused = child->requirement().focused;
}
// Extend the min_x and min_y to contain all the children
requirement_.min_x =
std::max(requirement_.min_x, child->requirement().min_x);
requirement_.min_y =
std::max(requirement_.min_y, child->requirement().min_y);
}
}
void SetBox(Box box) override {
Node::SetBox(box);
for (auto& child : children_) {
child->SetBox(box);
}
}
};
} // namespace
/// @brief Stack several element on top of each other.
/// @param children_ The input element.
/// @return The right aligned element.
/// @ingroup dom
Element dbox(Elements children_) {
return std::make_shared<DBox>(std::move(children_));
}
} // namespace ftxui
box.hpp
elements.hpp
ftxui::Node::SetBox
virtual void SetBox(Box box)
Assign a position and a dimension to an element for drawing.
Definition node.cpp:41
ftxui::dbox
Element dbox(Elements)
Stack several element on top of each other.
Definition src/ftxui/dom/dbox.cpp:55
ftxui
The FTXUI ftxui:: namespace.
Definition animation.hpp:10
ftxui::Element
std::shared_ptr< Node > Element
Definition elements.hpp:22
ftxui::Elements
std::vector< Element > Elements
Definition elements.hpp:23
node.hpp
pixel.hpp
requirement.hpp