Genlist - different width options

This example doesn't present any other feature that is not already present in the other examples, but visually shows the difference between using the default list options (first list of the example), setting the horizontal mode to ELM_LIST_LIMIT (second list), enabling compress mode (third list) and using height_for_width option (fourth list).

The full code for this example is listed below:

//Compile with:
//gcc -g genlist_example_03.c -o genlist_example_03 `pkg-config --cflags --libs elementary`
 
#include <Elementary.h>
 
#define N_ITEMS 30
 
static Elm_Genlist_Item_Class *_itc = NULL;
 
static char *
_item_label_get(void *data, Evas_Object *obj EINA_UNUSED, const char *part)
{
   time_t t = (time_t)ecore_time_unix_get();
   char buf[256];
   int i = (int)(uintptr_t)data;
 
   if (!strcmp(part, "elm.text"))
     snprintf(buf, sizeof(buf), "Item # %i", i);
   else
     {
        int n;
        snprintf(buf, sizeof(buf), "created at %s", ctime(&t));
        n = strlen(buf);
        buf[n - 1] = '\0';
     }
 
   return strdup(buf);
}
 
static Evas_Object *
_item_content_get(void *data EINA_UNUSED, Evas_Object *obj, const char *part)
{
   Evas_Object *ic = elm_icon_add(obj);
 
   if (!strcmp(part, "elm.swallow.icon"))
     elm_icon_standard_set(ic, "clock");
 
   return ic;
}
 
static void
_item_sel_cb(void *data, Evas_Object *obj, void *event_info)
{
   printf("sel item data [%p] on genlist obj [%p], item pointer [%p]\n",
          data, obj, event_info);
}
 
static Evas_Object *
_genlist_add(Evas_Object *box)
{
   Evas_Object *list = elm_genlist_add(elm_object_parent_widget_get(box));
   evas_object_size_hint_weight_set(list, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   evas_object_size_hint_align_set(list, EVAS_HINT_FILL, EVAS_HINT_FILL);
   elm_box_pack_end(box, list);
   evas_object_show(list);
 
   return list;
}
 
static void
_genlist_fill(Evas_Object *list)
{
   unsigned int i;
 
   for (i = 0; i < N_ITEMS; i++)
     {
        elm_genlist_item_append(list, _itc,
                                (void *)(uintptr_t)i, NULL,
                                ELM_GENLIST_ITEM_NONE,
                                _item_sel_cb, NULL);
     }
}
 
EAPI_MAIN int
elm_main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
{
   Evas_Object *win, *box;
   Evas_Object *list;
 
   win = elm_win_util_standard_add("genlist", "Genlist");
   elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
   elm_win_autodel_set(win, EINA_TRUE);
 
   box = elm_box_add(win);
   elm_box_horizontal_set(box, EINA_TRUE);
   evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   elm_win_resize_object_add(win, box);
   evas_object_show(box);
 
   if (!_itc)
     {
        _itc = elm_genlist_item_class_new();
        _itc->item_style = "double_label";
        _itc->func.text_get = _item_label_get;
        _itc->func.content_get = _item_content_get;
        _itc->func.state_get = NULL;
        _itc->func.del = NULL;
     }
 
   list = _genlist_add(box);
   _genlist_fill(list);
 
   list = _genlist_add(box);
   elm_genlist_mode_set(list, ELM_LIST_LIMIT);
   _genlist_fill(list);
 
   list = _genlist_add(box);
   elm_genlist_mode_set(list, ELM_LIST_COMPRESS);
   _genlist_fill(list);
 
   evas_object_resize(win, 800, 320);
   evas_object_show(win);
 
   elm_run();
 
   return 0;
}
ELM_MAIN()

And the screenshot of the running example: