Add the Button component.

examples/component/button.cpp

@@ -0,0 +1,48 @@
+// 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 "ftxui/component/button.hpp"
+
+#include "ftxui/component/component.hpp"
+#include "ftxui/component/container.hpp"
+#include "ftxui/component/screen_interactive.hpp"
+
+using namespace ftxui;
+
+class MyComponent : public Component {
+ private:
+  std::vector<std::unique_ptr<Button>> buttons_;
+  Container container_ = Container::Horizontal();
+
+ public:
+  MyComponent() {
+    Add(&container_);
+
+    auto button_add = std::make_unique<Button>();
+    auto button_remove = std::make_unique<Button>();
+    container_.Add(button_add.get());
+    container_.Add(button_remove.get());
+    button_add->label = L"Add one button";
+    button_remove->label = L"Remove last button";
+
+    button_add->on_click = [&] {
+      auto extra_button = std::make_unique<Button>();
+      extra_button->label = L"extra button";
+      container_.Add(extra_button.get());
+      buttons_.push_back(std::move(extra_button));
+    };
+
+    button_remove->on_click = [&] { buttons_.resize(buttons_.size() - 1); };
+
+    buttons_.push_back(std::move(button_add));
+    buttons_.push_back(std::move(button_remove));
+  }
+};
+
+int main(int argc, const char* argv[]) {
+  auto screen = ScreenInteractive::TerminalOutput();
+  MyComponent component;
+  screen.Loop(&component);
+  return 0;
+}