src/examples/genlist_example_02.c

   1 //Compile with:
   2 //gcc -g genlist_example_02.c -o genlist_example_02 `pkg-config --cflags --libs elementary`
   3
   4 #include <Elementary.h>
   5 #include <time.h>
   6
   7 #define N_ITEMS 300
   8
   9 static Elm_Genlist_Item_Class *_itc = NULL;
  10
  11 static char *
  12 _item_label_get(void *data, Evas_Object *obj, const char *part)
  13 {
  14    time_t t = (time_t)ecore_time_unix_get();
  15    char buf[256];
  16    int i = (int)(long)data;
  17    if (i % 2)
  18      {
  19         int n;
  20         snprintf(buf, sizeof(buf), "Very Long Item # %i - realized at %s", i, ctime(&t));
  21         n = strlen(buf);
  22         buf[n - 1] = '\0';
  23      }
  24    else
  25      snprintf(buf, sizeof(buf), "short item # %i", i);
  26    return strdup(buf);
  27 }
  28
  29 static Evas_Object *
  30 _item_content_get(void *data, Evas_Object *obj, const char *part)
  31 {
  32    Evas_Object *ic = elm_icon_add(obj);
  33
  34    if (!strcmp(part, "elm.swallow.icon"))
  35      elm_icon_standard_set(ic, "clock");
  36
  37    evas_object_size_hint_aspect_set(ic, EVAS_ASPECT_CONTROL_VERTICAL, 1, 1);
  38    return ic;
  39 }
  40
  41 static void
  42 _item_sel_cb(void *data, Evas_Object *obj, void *event_info)
  43 {
  44    printf("sel item data [%p] on genlist obj [%p], item pointer [%p]\n",
  45           data, obj, event_info);
  46 }
  47
  48 static void
  49 _show_status_cb(void *data, Evas_Object *o, void *event_info)
  50 {
  51    Evas_Object *list = data;
  52    Evas_Coord x, y, w, h, mx, my;
  53    Elm_Object_Item *glit = elm_genlist_selected_item_get(list);
  54
  55    const Eina_List *selected, *l, *realized;
  56    printf("\nfirst selected item: %p\n", glit);
  57
  58    selected = elm_genlist_selected_items_get(list);
  59    printf("all selected items (%d): ", eina_list_count(selected));
  60    EINA_LIST_FOREACH(selected, l, glit)
  61      printf("%p ", glit);
  62    printf("\n");
  63
  64    realized = elm_genlist_realized_items_get(list);
  65    printf("realized items (%d): ", eina_list_count(realized));
  66    EINA_LIST_FOREACH(realized, l, glit)
  67      printf("%p  ", glit);
  68    printf("\n");
  69    printf("genlist mode: %d\n", elm_genlist_decorate_mode_get(list));
  70    printf("mode item: %p\n", elm_genlist_decorated_item_get(list));
  71
  72    evas_object_geometry_get(list, &x, &y, &w, &h);
  73    mx = w / 2 + x;
  74    my = h / 2 + y;
  75    glit = elm_genlist_at_xy_item_get(list, mx, my, NULL);
  76    printf("item in the middle of the screen: %p\n", glit);
  77 }
  78
  79 static void
  80 _realize_cb(void *data, Evas_Object *o, void *event_info)
  81 {
  82    Evas_Object *list = data;
  83    elm_genlist_realized_items_update(list);
  84 }
  85
  86 EAPI_MAIN int
  87 elm_main(int argc, char **argv)
  88 {
  89    Evas_Object *win, *bg, *box, *hbox;
  90    Evas_Object *list, *btn;
  91    int i;
  92
  93    win = elm_win_add(NULL, "genlist", ELM_WIN_BASIC);
  94    elm_win_title_set(win, "Genlist - simple");
  95    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
  96    elm_win_autodel_set(win, EINA_TRUE);
  97
  98    bg = elm_bg_add(win);
  99    elm_bg_color_set(bg, 255,255 ,255);
 100    evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 101    elm_win_resize_object_add(win, bg);
 102    evas_object_show(bg);
 103
 104    box = elm_box_add(win);
 105    evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 106    evas_object_size_hint_align_set(box, EVAS_HINT_FILL, EVAS_HINT_FILL);
 107    elm_win_resize_object_add(win, box);
 108    evas_object_show(box);
 109
 110    list = elm_genlist_add(win);
 111
 112    if (!_itc)
 113      {
 114         _itc = elm_genlist_item_class_new();
 115         _itc->item_style = "default";
 116         _itc->func.text_get = _item_label_get;
 117         _itc->func.content_get = _item_content_get;
 118         _itc->func.state_get = NULL;
 119         _itc->func.del = NULL;
 120      }
 121
 122    Eina_Bool hbounce, vbounce, always, no_sel;
 123    Elm_Scroller_Policy hp, vp;
 124    Elm_Object_Select_Mode sel_mode;
 125
 126    always = no_sel = EINA_FALSE;
 127    sel_mode = elm_genlist_select_mode_get(list);
 128    if (sel_mode == ELM_OBJECT_SELECT_MODE_ALWAYS)
 129      always = EINA_TRUE;
 130    else if (sel_mode == ELM_OBJECT_SELECT_MODE_NONE)
 131      no_sel = EINA_TRUE;
 132
 133    printf("default values:\n");
 134    printf("always select: %d\n", always);
 135    elm_scroller_bounce_get(list, &hbounce, &vbounce);
 136    printf("bounce - horizontal: %d, vertical: %d\n", hbounce, vbounce);
 137    printf("homogeneous: %d\n", elm_genlist_homogeneous_get(list));
 138    printf("horizontal mode: %d\n", elm_genlist_mode_get(list));
 139    printf("longpress timeout: %0.3f\n",
 140           elm_genlist_longpress_timeout_get(list));
 141    printf("multi selection: %d\n", elm_genlist_multi_select_get(list));
 142    printf("no selection mode: %d\n", no_sel);
 143    elm_scroller_policy_get(list, &hp, &vp);
 144    printf("scroller policy - horizontal: %d, vertical: %d\n", hp, vp);
 145    printf("block count: %d\n", elm_genlist_block_count_get(list));
 146    printf("\n");
 147
 148    elm_scroller_bounce_set(list, EINA_FALSE, EINA_FALSE);
 149    elm_genlist_homogeneous_set(list, EINA_FALSE);
 150    elm_genlist_mode_set(list, ELM_LIST_LIMIT);
 151    elm_genlist_multi_select_set(list, EINA_TRUE);
 152    elm_genlist_select_mode_set(list, ELM_OBJECT_SELECT_MODE_DEFAULT);
 153    elm_scroller_policy_set(list, ELM_SCROLLER_POLICY_OFF, ELM_SCROLLER_POLICY_ON);
 154    elm_genlist_longpress_timeout_set(list, 0.5);
 155    elm_genlist_block_count_set(list, 16);
 156
 157    for (i = 0; i < N_ITEMS; i++)
 158      {
 159         elm_genlist_item_append(list, _itc,
 160                                 (void *)(long)i, NULL,
 161                                 ELM_GENLIST_ITEM_NONE,
 162                                 _item_sel_cb, NULL);
 163      }
 164
 165    evas_object_size_hint_weight_set(list, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 166    evas_object_size_hint_align_set(list, EVAS_HINT_FILL, EVAS_HINT_FILL);
 167    elm_box_pack_end(box, list);
 168    evas_object_show(list);
 169
 170    hbox = elm_box_add(win);
 171    elm_box_horizontal_set(hbox, EINA_TRUE);
 172    evas_object_size_hint_weight_set(hbox, EVAS_HINT_EXPAND, 0);
 173    evas_object_size_hint_align_set(hbox, EVAS_HINT_FILL, EVAS_HINT_FILL);
 174    elm_box_pack_end(box, hbox);
 175    evas_object_show(hbox);
 176
 177    btn = elm_button_add(win);
 178    elm_object_text_set(btn, "Show status");
 179    evas_object_size_hint_weight_set(btn, 0, 0);
 180    evas_object_size_hint_align_set(btn, 0.5, 0.5);
 181    evas_object_smart_callback_add(btn, "clicked", _show_status_cb, list);
 182    elm_box_pack_end(hbox, btn);
 183    evas_object_show(btn);
 184
 185    btn = elm_button_add(win);
 186    elm_object_text_set(btn, "Realize");
 187    evas_object_size_hint_weight_set(btn, 0, 0);
 188    evas_object_size_hint_align_set(btn, 0.5, 0.5);
 189    evas_object_smart_callback_add(btn, "clicked", _realize_cb, list);
 190    elm_box_pack_end(hbox, btn);
 191    evas_object_show(btn);
 192
 193    evas_object_resize(win, 200, 320);
 194    evas_object_show(win);
 195
 196    elm_run();
 197    elm_shutdown();
 198
 199    return 0;
 200 }
 201 ELM_MAIN()