efl/src/examples/elementary/slider_cxx_example.cc

// g++ -g `pkg-config --cflags --libs elementary-cxx efl-cxx eina-cxx eo-cxx ecore-cxx evas-cxx edje-cxx` slider_cxx_example.cc -o slider_cxx_example

#define EFL_CXXPERIMENTAL

#include <Elementary.hh>

using namespace std::placeholders;
using efl::eo::instantiate;

static efl::ui::Win win;

static void
efl_main(void *data EINA_UNUSED, const Efl_Event *ev EINA_UNUSED)
{
   elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);

   win = efl::ui::Win(instantiate);
   win.text_set("Slider example");
   win.delete_request_event_cb_add([](){ win._delete(); });

   efl::ui::Box bx(instantiate, win);
   win.content_set(bx);

   efl::ui::Slider sl(instantiate, win);
   sl.hint_align_set(EFL_GFX_SIZE_HINT_FILL, 0.5);
   bx.pack_end(sl);

   efl::ui::Slider sl2(instantiate, win);
   sl2.text_set("Counter");
   efl::ui::Image ic(instantiate, win);
   ic.icon_set("home");
   ic.scalable_set(false, false);
   sl2.content_set(ic);

   efl::ui::Image ic2(instantiate, win);
   ic2.icon_set("folder");
   ic2.scalable_set(false, false);
   // FIXME: C++ part API needs special reference handling! This will show ERR!
   efl::eo::downcast<efl::Content>(sl2.part("elm.swallow.end"))
         .content_set(ic2);

   sl2.hint_align_set(EFL_GFX_SIZE_HINT_FILL, 0.5);
   bx.pack_end(sl2);

   efl::ui::Slider sl3(instantiate, win);
   sl3.range_value_set(1);
   sl3.hint_min_set({220, 0});
   sl3.hint_align_set(EFL_GFX_SIZE_HINT_FILL, 0.5);
   bx.pack_end(sl3);

   efl::ui::Slider sl4(instantiate, win);
   sl4.format_string_set("%1.0f units");
   sl4.range_min_max_set(0, 100);
   sl4.hint_align_set(EFL_GFX_SIZE_HINT_FILL, 0.5);
   bx.pack_end(sl4);

   efl::ui::Slider sl5(instantiate, win);
   sl5.indicator().format_string_set("%1.0f rabbit(s)");
   sl5.range_min_max_set(0, 100);
   sl5.step_set(1);
   sl5.direction_set(EFL_UI_DIR_UP);
   sl5.hint_align_set(EFL_GFX_SIZE_HINT_FILL, 0.5);
   sl5.hint_min_set({0, 120});
   bx.pack_end(sl5);

   efl::ui::Slider sl6(instantiate, win);
   sl6.direction_set(EFL_UI_DIR_HORIZONTAL);
   sl6.range_min_max_set(0, 10);
   auto format_cb = std::bind([](
                              efl::eina::strbuf_wrapper& sb,
                              efl::eina::value_view const& value) {
         try {
            int d = int(efl::eina::get<double>(value));
            if (d >= 2) sb.append_printf("%d things", d);
            else if (!d) sb.append("nothing");
            else sb.append("one thing");
         } catch (std::system_error const&)  {
            sb.append(value.to_string());
         } }, _1, _2);
   sl6.format_cb_set(format_cb);
   sl6.hint_align_set(0.5, EFL_GFX_SIZE_HINT_FILL);
   sl6.hint_weight_set(0, EFL_GFX_SIZE_HINT_EXPAND);
   bx.pack_end(sl6);

   efl::ui::Slider sl7(instantiate, win);
   sl7.format_string_set("%1.3f units");
//   sl7.indicator_format_function_set(indicator_format, indicator_free);
   sl7.hint_align_set(EFL_GFX_SIZE_HINT_FILL, 0.5);
   bx.pack_end(sl7);

   auto changed = std::bind ( [] (efl::ui::Slider obj)
   { std::cout << "Changed to " << obj.range_value_get() << std::endl; }
         , std::placeholders::_1);

   auto delay =  std::bind ( [] (efl::ui::Slider obj)
   { std::cout << "Delay changed to " << obj.range_value_get() << std::endl; }
         , std::placeholders::_1);

   sl7.changed_event_cb_add(changed);
   sl7.delay_changed_event_cb_add(delay);
}
EFL_MAIN()