Add CheckBox.

ftxui/include/ftxui/component/checkbox.hpp

@@ -0,0 +1,34 @@
+#ifndef FTXUI_COMPONENT_CHECKBOX_HPP
+#define FTXUI_COMPONENT_CHECKBOX_HPP
+
+#include "ftxui/component/component.hpp"
+#include <functional>
+
+namespace ftxui {
+
+class CheckBox : public Component {
+ public:
+  // Constructor.
+  CheckBox() = default;
+  ~CheckBox() override = default;
+
+  bool state = false;
+  std::wstring label = L"label";
+
+  std::wstring checked = L"[X] ";
+  std::wstring unchecked = L"[ ] ";
+
+  // State update callback.
+  std::function<void()> on_change = [](){};
+
+  // Component implementation.
+  Element Render() override;
+  bool OnEvent(Event) override;
+
+ private:
+  int cursor_position = 0;
+};
+
+}  // namespace ftxui
+
+#endif /* end of include guard: FTXUI_COMPONENT_CHECKBOX_HPP */

ftxui/include/ftxui/component/component.hpp

@@ -1,7 +1,6 @@
 #ifndef FTXUI_COMPONENT_COMPONENT_HPP
 #define FTXUI_COMPONENT_COMPONENT_HPP
 
-#include "ftxui/component/delegate.hpp"
 #include "ftxui/component/event.hpp"
 #include "ftxui/dom/elements.hpp"
 

ftxui/include/ftxui/component/container.hpp

@@ -13,22 +13,31 @@ class Container : public Component {
  public:
   static Container Vertical();
   static Container Horizontal();
+  static Container Tab(size_t* selector);
 
   ~Container() override = default;
 
   // Component override.
   bool OnEvent(Event event) override;
+  Element Render() override;
   Component* ActiveChild() override;
+
  protected:
   // Handlers
-  using Handler = bool (Container::*)(Event);
-  Handler handler_;
-  bool Vertical(Event event);
-  bool Horizontal(Event event);
+  using EventHandler = bool (Container::*)(Event);
+  bool VerticalEvent(Event event);
+  bool HorizontalEvent(Event event);
+  bool TabEvent(Event event) { return false; }
+  EventHandler event_handler_;
+
+  using RenderHandler = Element (Container::*)();
+  Element VerticalRender();
+  Element HorizontalRender();
+  Element TabRender();
+  RenderHandler render_handler_;
 
   size_t selected_ = 0;
-
-  Container(Handler);
+  size_t* selector_ = &selected_;
 };
 
 }  // namespace ftxui

ftxui/include/ftxui/component/delegate.hpp

@@ -1,13 +0,0 @@
-#ifndef FTXUI_COMPONENT_DELEGATE_HPP
-#define FTXUI_COMPONENT_DELEGATE_HPP
-
-#include "ftxui/dom/elements.hpp"
-
-namespace ftxui {
-
-class Component;
-
-
-}  // namespace ftxui
-
-#endif /* end of include guard: FTXUI_COMPONENT_DELEGATE_HPP */

ftxui/include/ftxui/component/menu.hpp

@@ -15,7 +15,7 @@ class Menu : public Component {
 
   // State.
   std::vector<std::wstring> entries = {};
-  int selected = 0;
+  size_t selected = 0;
 
   Decorator active_style = inverted;
   Decorator selected_style = bold;

ftxui/include/ftxui/component/toggle.hpp

@@ -13,8 +13,8 @@ class Toggle : public Component {
   ~Toggle() override = default;
 
   // State.
-  size_t activated = 0;
-  std::vector<std::wstring> options = {L"On", L"Off"};
+  size_t selected = 0;
+  std::vector<std::wstring> entries = {L"On", L"Off"};
 
   // Callback.
   std::function<void()> on_change = [](){};