FTXUI/include/ftxui/dom/elements.hpp

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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.
#ifndef FTXUI_DOM_ELEMENTS_HPP
#define FTXUI_DOM_ELEMENTS_HPP
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#include <functional>
#include <memory>
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#include "ftxui/dom/node.hpp"
#include "ftxui/screen/color.hpp"
#include "ftxui/screen/screen.hpp"
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namespace ftxui {
class Node;
using Element = std::shared_ptr<Node>;
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using Elements = std::vector<Element>;
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using Decorator = std::function<Element(Element)>;
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using GraphFunction = std::function<std::vector<int>(int, int)>;
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// Pipe elements into decorator togethers.
// For instance the next lines are equivalents:
// -> text("ftxui") | bold | underlined
// -> underlined(bold(text(L"FTXUI")))
Element operator|(Element, Decorator);
Elements operator|(Elements, Decorator);
Decorator operator|(Decorator, Decorator);
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// --- Widget ---
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Element text(std::wstring text);
Element vtext(std::wstring text);
Element separator(void);
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Element separator(Pixel);
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Element gauge(float ratio);
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Element border(Element);
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Decorator borderWith(Pixel);
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Element window(Element title, Element content);
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Element spinner(int charset_index, size_t image_index);
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Elements paragraph(std::wstring text); // Use inside hflow(). Split by space.
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Element graph(GraphFunction);
// -- Decorator ---
Element bold(Element);
Element dim(Element);
Element inverted(Element);
Element underlined(Element);
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Element blink(Element);
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Decorator color(Color);
Decorator bgcolor(Color);
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Element color(Color, Element);
Element bgcolor(Color, Element);
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// --- Layout is
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// Horizontal, Vertical or stacked set of elements.
Element hbox(Elements);
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Element vbox(Elements);
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Element dbox(Elements);
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Element hflow(Elements);
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// -- Flexibility ---
// Define how to share the remaining space when not all of it is used inside a
// container.
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Element flex(Element); // Expand/Minimize if possible/needed.
Element flex_grow(Element); // Expand element if possible.
Element flex_shrink(Element); // Minimize element if needed.
Element xflex(Element); // Expand/Minimize if possible/needed.
Element xflex_grow(Element); // Expand element if possible.
Element xflex_shrink(Element); // Minimize element if needed.
Element yflex(Element); // Expand/Minimize if possible/needed.
Element yflex_grow(Element); // Expand element if possible.
Element yflex_shrink(Element); // Minimize element if needed.
Element notflex(Element); // Reset the flex attribute.
Element filler(); // A blank expandable element.
// -- Size override;
enum Direction { WIDTH, HEIGHT };
enum Constraint { LESS_THAN, EQUAL, GREATER_THAN };
Decorator size(Direction, Constraint, int value);
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// --- Frame ---
// A frame is a scrollable area. The internal area is potentially larger than
// the external one. The internal area is scrolled in order to make visible the
// focused element.
Element frame(Element);
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Element xframe(Element);
Element yframe(Element);
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Element focus(Element);
Element select(Element);
// --- Util --------------------------------------------------------------------
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Element hcenter(Element);
Element vcenter(Element);
Element center(Element);
Element align_right(Element);
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Element nothing(Element element);
// Make container able to take any number of children as input.
#include "take_any_args.hpp"
TAKE_ANY_ARGS(vbox)
TAKE_ANY_ARGS(hbox)
TAKE_ANY_ARGS(dbox)
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TAKE_ANY_ARGS(hflow)
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} // namespace ftxui
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#endif /* end of include guard: FTXUI_DOM_ELEMENTS_HPP */