examples/component/renderer.cpp

resizable_split

// 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 <memory>  // for shared_ptr, allocator, __shared_ptr_access
 
#include "ftxui/component/captured_mouse.hpp"  // for ftxui
#include "ftxui/component/component.hpp"  // for Renderer, ResizableSplitBottom, ResizableSplitLeft, ResizableSplitRight, ResizableSplitTop
#include "ftxui/component/component_base.hpp"      // for ComponentBase
#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
#include "ftxui/dom/elements.hpp"  // for Element, operator|, text, center, border
 
using namespace ftxui;
 
int main() {
  auto screen = ScreenInteractive::Fullscreen();
 
  auto middle = Renderer([] { return text("middle") | center; });
  auto left = Renderer([] { return text("Left") | center; });
  auto right = Renderer([] { return text("right") | center; });
  auto top = Renderer([] { return text("top") | center; });
  auto bottom = Renderer([] { return text("bottom") | center; });
 
  int left_size = 20;
  int right_size = 20;
  int top_size = 10;
  int bottom_size = 10;
 
  auto container = middle;
  container = ResizableSplitLeft(left, container, &left_size);
  container = ResizableSplitRight(right, container, &right_size);
  container = ResizableSplitTop(top, container, &top_size);
  container = ResizableSplitBottom(bottom, container, &bottom_size);
 
  auto renderer =
      Renderer(container, [&] { return container->Render() | border; });
 
  screen.Loop(renderer);
}

// 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 <memory>  // for shared_ptr, allocator, __shared_ptr_access
 
#include "ftxui/component/captured_mouse.hpp"  // for ftxui
#include "ftxui/component/component.hpp"       // for Renderer, Button, Vertical
#include "ftxui/component/component_base.hpp"  // for ComponentBase
#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
#include "ftxui/dom/elements.hpp"  // for operator|, Element, text, bold, border, center, color
#include "ftxui/screen/color.hpp"  // for Color, Color::Red
 
int main() {
  using namespace ftxui;
  auto screen = ScreenInteractive::FitComponent();
 
  // A Renderer() is a component using a lambda function as a parameter to
  // render itself.
 
  // 1. Example of focusable renderer:
  auto renderer_focusable = Renderer([](bool focused) {
    if (focused)
      return text("FOCUSABLE RENDERER()") | center | bold | border;
    else
      return text(" Focusable renderer() ") | center | border;
  });
 
  // 2. Examples of a non focusable renderer.
  auto renderer_non_focusable = Renderer([&] {
    return text("~~~~~ Non Focusable renderer() ~~~~~");  //
  });
 
  // 3. Renderer can wrap other components to redefine their Render() function.
  auto button = Button("Wrapped quit button", screen.ExitLoopClosure());
  auto renderer_wrap = Renderer(button, [&] {
    if (button->Focused())
      return button->Render() | bold | color(Color::Red);
    else
      return button->Render();
  });
 
  // Let's renderer everyone:
  screen.Loop(Container::Vertical({
      renderer_focusable,
      renderer_non_focusable,
      renderer_wrap,
  }));
}