FTXUI/include/ftxui/dom/node.hpp
2019-02-02 02:25:06 +01:00

43 lines
1003 B
C++

#ifndef FTXUI_DOM_NODE_HPP
#define FTXUI_DOM_NODE_HPP
#include <memory>
#include <vector>
#include "ftxui/dom/requirement.hpp"
#include "ftxui/screen/box.hpp"
#include "ftxui/screen/screen.hpp"
namespace ftxui {
class Node {
public:
Node();
Node(std::vector<std::unique_ptr<Node>> children);
virtual ~Node();
// Step 1: Compute layout requirement. Tell parent what dimensions this
// element wants to be.
// Propagated from Children to Parents.
virtual void ComputeRequirement();
Requirement requirement() { return requirement_; }
// Step 2: Assign this element its final dimensions.
// Propagated from Parents to Children.
virtual void SetBox(Box box);
// Step 3: Draw this element.
virtual void Render(Screen& screen);
std::vector<std::unique_ptr<Node>> children;
protected:
Requirement requirement_;
Box box_;
};
void Render(Screen& screen, Node* node);
}; // namespace ftxui
#endif /* end of include guard: FTXUI_DOM_NODE_HPP */