Initialize

ftxui/examples/component/slider_rgb.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 <memory>  // for allocator, shared_ptr, __shared_ptr_access
+#include <string>  // for char_traits, operator+, to_string
+
+#include "ftxui/component/captured_mouse.hpp"  // for ftxui
+#include "ftxui/component/component.hpp"       // for Slider, Renderer, Vertical
+#include "ftxui/component/component_base.hpp"  // for ComponentBase
+#include "ftxui/component/screen_interactive.hpp"  // for ScreenInteractive
+#include "ftxui/dom/elements.hpp"  // for separator, operator|, Element, size, text, vbox, xflex, bgcolor, hbox, GREATER_THAN, WIDTH, border, HEIGHT, LESS_THAN
+#include "ftxui/screen/color.hpp"  // for Color
+
+using namespace ftxui;
+
+Element ColorTile(int red, int green, int blue) {
+  return text("") | size(WIDTH, GREATER_THAN, 14) |
+         size(HEIGHT, GREATER_THAN, 7) | bgcolor(Color::RGB(red, green, blue));
+}
+
+Element ColorString(int red, int green, int blue) {
+  return text("RGB = (" +                    //
+              std::to_string(red) + "," +    //
+              std::to_string(green) + "," +  //
+              std::to_string(blue) + ")"     //
+  );
+}
+
+int main() {
+  int red = 128;
+  int green = 25;
+  int blue = 100;
+  auto slider_red = Slider("Red  :", &red, 0, 255, 1);
+  auto slider_green = Slider("Green:", &green, 0, 255, 1);
+  auto slider_blue = Slider("Blue :", &blue, 0, 255, 1);
+
+  auto container = Container::Vertical({
+      slider_red,
+      slider_green,
+      slider_blue,
+  });
+
+  auto renderer = Renderer(container, [&] {
+    return hbox({
+               ColorTile(red, green, blue),
+               separator(),
+               vbox({
+                   slider_red->Render(),
+                   separator(),
+                   slider_green->Render(),
+                   separator(),
+                   slider_blue->Render(),
+                   separator(),
+                   ColorString(red, green, blue),
+               }) | xflex,
+           }) |
+           border | size(WIDTH, LESS_THAN, 80);
+  });
+  auto screen = ScreenInteractive::TerminalOutput();
+  screen.Loop(renderer);
+}