FTXUI  5.0.0
C++ functional terminal UI.
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dbox.cpp
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1// Copyright 2020 Arthur Sonzogni. All rights reserved.
2// Use of this source code is governed by the MIT license that can be found in
3// the LICENSE file.
4#include <algorithm> // for max
5#include <memory> // for __shared_ptr_access, shared_ptr, make_shared
6#include <utility> // for move
7#include <vector> // for vector
8
9#include "ftxui/dom/elements.hpp" // for Element, Elements, dbox
10#include "ftxui/dom/node.hpp" // for Node, Elements
11#include "ftxui/dom/requirement.hpp" // for Requirement
12#include "ftxui/screen/box.hpp" // for Box
13
14namespace ftxui {
15
16 namespace {
17class DBox : public Node {
18 public:
19 explicit DBox(Elements children) : Node(std::move(children)) {}
20
21 void ComputeRequirement() override {
22 requirement_.min_x = 0;
23 requirement_.min_y = 0;
24 requirement_.flex_grow_x = 0;
25 requirement_.flex_grow_y = 0;
26 requirement_.flex_shrink_x = 0;
27 requirement_.flex_shrink_y = 0;
28 requirement_.selection = Requirement::NORMAL;
29 for (auto& child : children_) {
30 child->ComputeRequirement();
31 requirement_.min_x =
32 std::max(requirement_.min_x, child->requirement().min_x);
33 requirement_.min_y =
34 std::max(requirement_.min_y, child->requirement().min_y);
35
36 if (requirement_.selection < child->requirement().selection) {
37 requirement_.selection = child->requirement().selection;
38 requirement_.selected_box = child->requirement().selected_box;
39 }
40 }
41 }
42
43 void SetBox(Box box) override {
45
46 for (auto& child : children_) {
47 child->SetBox(box);
48 }
49 }
50};
51} // namespace
52
53/// @brief Stack several element on top of each other.
54/// @param children_ The input element.
55/// @return The right aligned element.
56/// @ingroup dom
57Element dbox(Elements children_) {
58 return std::make_shared<DBox>(std::move(children_));
59}
60
61} // namespace ftxui
virtual void SetBox(Box box)
Assign a position and a dimension to an element for drawing.
Definition node.cpp:26
std::shared_ptr< Node > Element
Definition elements.hpp:23
std::vector< Element > Elements
Definition elements.hpp:24
Element dbox(Elements)
Stack several element on top of each other.
Definition dbox.cpp:57
Component Slider(SliderOption< T > options)
A slider in any direction.
Definition slider.cpp:339