Examples_FLTK/src/User_Controls/Check_Box/Check_Box.cpp at master · gammasoft71/Examples_FLTK · GitHub

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#include "Fl_Check_Box.h"
#include <map>
#include <FL/Fl.H>
#include <FL/Fl_Window.H>

using namespace std;

namespace Examples {
  class Main_Window : public Fl_Window {
  public:
    Main_Window() : Fl_Window {200, 100, 300, 300, "Check box example"} {
      check_box1.auto_check(false);
      check_box1.state(FL_UNCHECKED);
      check_box1.callback([](Fl_Widget* sender, void* window) {
        //reinterpret_cast<Fl_Check_Box*>(sender)->state(!reinterpret_cast<Fl_Check_Box*>(sender)->state());
        reinterpret_cast<Fl_Check_Box*>(sender)->label(state_to_string(reinterpret_cast<Fl_Check_Box*>(sender)->state()));
      }, this);

      check_box2.state(FL_CHECKED);
      check_box2.callback([](Fl_Widget* sender, void* window) {
        reinterpret_cast<Fl_Check_Box*>(sender)->label(state_to_string(reinterpret_cast<Fl_Check_Box*>(sender)->state()));
      }, this);

      check_box3.three_state(true);
      check_box3.state(FL_INDETERMINATE);
      check_box3.callback([](Fl_Widget* sender, void* window) {
        reinterpret_cast<Fl_Check_Box*>(sender)->label(state_to_string(reinterpret_cast<Fl_Check_Box*>(sender)->state()));
      }, this);

      check_box4.state(FL_CHECKED);
      check_box4.toggle_button(true);
      check_box4.callback([](Fl_Widget* sender, void* window) {
        reinterpret_cast<Fl_Check_Box*>(sender)->label(state_to_string(reinterpret_cast<Fl_Check_Box*>(sender)->state()));
      }, this);

      check_box5.auto_check(false);
      check_box5.state(FL_UNCHECKED);
      check_box5.toggle_button(true);
      check_box5.callback([](Fl_Widget* sender, void* window) {
        //reinterpret_cast<Fl_Check_Box*>(sender)->state(!reinterpret_cast<Fl_Check_Box*>(sender)->state());
        reinterpret_cast<Fl_Check_Box*>(sender)->label(state_to_string(reinterpret_cast<Fl_Check_Box*>(sender)->state()));
      }, this);
    }

  private:
    static const char* state_to_string(int state) noexcept {
      static auto states = map<int, const char*> {{FL_UNCHECKED, "Unchecked"}, {FL_CHECKED, "Checked"}, {FL_INDETERMINATE, "Indeterminate"}};
      return states[state];
    }

    Fl_Check_Box check_box1 {30, 30, 110, 23, "Unchecked"};
    Fl_Check_Box check_box2 {30, 60, 110, 23, "Checked"};
    Fl_Check_Box check_box3 {30, 90, 110, 23, "Indeterminate"};
    Fl_Check_Box check_box4 {30, 120, 110, 23, "Checked"};
    Fl_Check_Box check_box5 {30, 150, 110, 23, "Unchecked"};
  };
}

auto main(int argc, char *argv[]) -> int {
  auto window = Examples::Main_Window {};
  window.show(argc, argv);
  return Fl::run();
}