Flipselector example

#include <Elementary.h>

static const char *commands = \
                              "commands are:\n"
                              "\tn - flip to next item\n"
                              "\tp - flip to previous item\n"
                              "\tf - print first item's label\n"
                              "\tl - print last item's label\n"
                              "\ts - print selected item's label\n"
                              "\th - print help\n";

void /* unselect the item shown in the flip selector */
_unsel_cb(void        *data,
          Evas_Object *obj EINA_UNUSED,
          void        *event_info EINA_UNUSED)
{
   Elm_Object_Item *it;
   Evas_Object *fp = data;

   it = elm_flipselector_selected_item_get(fp);
   elm_flipselector_item_selected_set(it, EINA_FALSE);
}

void /* delete the item shown in the flip selector */
_del_cb(void        *data,
        Evas_Object *obj EINA_UNUSED,
        void        *event_info EINA_UNUSED)
{
   Elm_Object_Item *it;
   Evas_Object *fp = data;

   it = elm_flipselector_selected_item_get(fp);
   if (it) elm_object_item_del(it);
}

void /* underflow callback */
_underflow_cb(void        *data EINA_UNUSED,
              Evas_Object *obj EINA_UNUSED,
              void        *event_info EINA_UNUSED)
{
   printf("Underflow!\n");
}

void /* overflow callback */
_overflow_cb(void        *data EINA_UNUSED,
             Evas_Object *obj EINA_UNUSED,
             void        *event_info EINA_UNUSED)
{
   printf("Overflow!\n");
}

static Eina_Bool
_on_keydown(void              *data,
            Evas_Object       *object EINA_UNUSED,
            Evas_Object       *src EINA_UNUSED,
            Evas_Callback_Type type,
            void              *event_info)
{
   Evas_Object *fs = data;
   Evas_Event_Key_Down *ev = event_info;

   if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;

   if (strcmp(ev->keyname, "h") == 0) /* print help */
     {
        printf("%s", commands);
     }
   else if (strcmp(ev->keyname, "n") == 0) /* flip to next item */
     {
        elm_flipselector_flip_next(fs);

        printf("Flipping to next item\n");
     }
   else if (strcmp(ev->keyname, "p") == 0) /* flip to previous item */
     {
        elm_flipselector_flip_prev(fs);

        printf("Flipping to previous item\n");
     }
   else if (strcmp(ev->keyname, "f") == 0) /* print first item's label */
     {
        Elm_Object_Item *it;

        it = elm_flipselector_first_item_get(fs);

        printf("Flip selector's first item is: %s\n", it ?
                elm_object_item_text_get(it) : "none");
     }
   else if (strcmp(ev->keyname, "l") == 0) /* print last item's label */
     {
        Elm_Object_Item *it;

        it = elm_flipselector_last_item_get(fs);

        printf("Flip selector's last item is: %s\n", it ?
                elm_object_item_text_get(it) : "none");
     }
   else if (strcmp(ev->keyname, "s") == 0) /* print selected item's label */
     {
        Elm_Object_Item *it;

        it = elm_flipselector_selected_item_get(fs);

        printf("Flip selector's selected item is: %s\n", it ?
                elm_object_item_text_get(it) : "none");
     }
   else
     return EINA_FALSE;

   ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
   return EINA_TRUE;
}

EAPI_MAIN int
elm_main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
{
   unsigned int i;
   Evas_Object *win, *bx, *fp, *bt;
   static const char *lbl[] =
     {
        "Elementary",
        "Evas",
        "Eina",
        "Edje",
        "Eet",
        "Ecore",
        "Efreet",
        "Eldbus"
     };

   elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);

   win = elm_win_util_standard_add("flipselector", "Flip Selector Example");
   elm_win_autodel_set(win, EINA_TRUE);

   bx = elm_box_add(win);
   evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   elm_win_resize_object_add(win, bx);
   evas_object_show(bx);

   fp = elm_flipselector_add(win);
   evas_object_size_hint_weight_set(fp, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   evas_object_smart_callback_add(fp, "underflowed", _overflow_cb, NULL);
   evas_object_smart_callback_add(fp, "overflowed", _underflow_cb, NULL);
   for (i = 0; i < sizeof(lbl) / sizeof(lbl[0]); i++)
     elm_flipselector_item_append(fp, lbl[i], NULL, NULL);
   elm_box_pack_end(bx, fp);
   evas_object_show(fp);

   bt = elm_button_add(win);
   elm_object_text_set(bt, "Unselect item");
   evas_object_smart_callback_add(bt, "clicked", _unsel_cb, fp);
   elm_box_pack_end(bx, bt);
   evas_object_show(bt);

   bt = elm_button_add(win);
   elm_object_text_set(bt, "Delete item");
   evas_object_smart_callback_add(bt, "clicked", _del_cb, fp);
   elm_box_pack_end(bx, bt);
   evas_object_show(bt);

   elm_object_event_callback_add(win, _on_keydown, fp);

   evas_object_show(win);

   printf("%s", commands);
   elm_run();

   return 0;
}
ELM_MAIN()