src/examples/list_example_03.c

   1 /**
   2  * Elementary's <b>list widget</b> example, illustrating its API,
   3  * covering most of item functions.
   4  *
   5  * See stdout/stderr for output. Compile with:
   6  *
   7  * @verbatim
   8  * gcc -g list_example_03.c -o list_example_03 `pkg-config --cflags --libs elementary`
   9  * @endverbatim
  10  */
  11
  12 #include <Elementary.h>
  13
  14 static int counter = 3;
  15
  16 static void
  17 _prepend_cb(void *data, Evas_Object *obj, void *event_info)
  18 {
  19    Elm_Object_Item *list_it;
  20    Evas_Object *li = data;
  21    char label[32];
  22
  23    snprintf(label, sizeof(label), "Item %i", counter++);
  24    list_it = elm_list_item_prepend(li, label, NULL, NULL, NULL, NULL);
  25    elm_list_go(li);
  26    if (!list_it)
  27      printf("Error adding item\n");
  28 }
  29
  30 static void
  31 _add_cb(void *data, Evas_Object *obj, void *event_info)
  32 {
  33    Elm_Object_Item *list_it;
  34    Evas_Object *li = data;
  35    char label[32];
  36
  37    snprintf(label, sizeof(label), "Item %i", counter++);
  38    list_it = elm_list_item_append(li, label, NULL, NULL, NULL, NULL);
  39    elm_list_go(li);
  40    if (!list_it)
  41      printf("Error adding item\n");
  42 }
  43
  44 static void
  45 _add_ic_cb(void *data, Evas_Object *obj, void *event_info)
  46 {
  47    Elm_Object_Item *list_it;
  48    Evas_Object *ic, *li = data;
  49    char label[32];
  50
  51    snprintf(label, sizeof(label), "Item %i", counter++);
  52    ic = elm_icon_add(li);
  53    elm_icon_standard_set(ic, "home");
  54    elm_image_resizable_set(ic, EINA_FALSE, EINA_FALSE);
  55
  56    list_it = elm_list_item_append(li, label, ic,  NULL, NULL, NULL);
  57    elm_list_go(li);
  58    if (!list_it)
  59      printf("Error adding item with icon\n");
  60 }
  61
  62 static void
  63 _sel_cb(void *data, Evas_Object *obj, void *event_info)
  64 {
  65    Elm_Object_Item *list_it = event_info;
  66    printf("Selected label: %s\n", elm_object_item_text_get(list_it));
  67 }
  68
  69 static void
  70 _add_func_cb(void *data, Evas_Object *obj, void *event_info)
  71 {
  72    Elm_Object_Item *list_it;
  73    Evas_Object *li = data;
  74    char label[32];
  75
  76    snprintf(label, sizeof(label), "Item %i", counter++);
  77    list_it = elm_list_item_append(li, label, NULL, NULL, _sel_cb, NULL);
  78    elm_list_go(li);
  79    if (!list_it)
  80      printf("Error adding item\n");
  81 }
  82
  83 static void
  84 _sel_data_cb(void *data, Evas_Object *obj, void *event_info)
  85 {
  86    char *content = data;
  87    Elm_Object_Item *list_it = event_info;
  88    printf("Selected label: %s with data: %s\n",
  89           elm_object_item_text_get(list_it), content);
  90 }
  91
  92 static void
  93 _free_data(void *data, Evas_Object *obj, void *event_info)
  94 {
  95    free(data);
  96 }
  97
  98 static void
  99 _add_data_cb(void *data, Evas_Object *obj, void *event_info)
 100 {
 101    Elm_Object_Item *list_it;
 102    Evas_Object *li = data;
 103    char label[32];
 104    char *content = malloc(sizeof(char) * 32);
 105
 106    snprintf(content, 32, "Item content %i", counter);
 107    snprintf(label, sizeof(label), "Item %i", counter++);
 108    list_it = elm_list_item_append(li, label, NULL, NULL, _sel_data_cb, content);
 109    elm_list_go(li);
 110    if (!list_it)
 111      {
 112         printf("Error adding item\n");
 113         return;
 114      }
 115    elm_object_item_del_cb_set(list_it, _free_data);
 116 }
 117
 118 static void
 119 _del_cb(void *data, Evas_Object *obj, void *event_info)
 120 {
 121    Elm_Object_Item *selected_item;
 122    Evas_Object *li = data;
 123
 124    selected_item = elm_list_selected_item_get(li);
 125    elm_object_item_del(selected_item);
 126    elm_list_go(li);
 127 }
 128
 129 static void
 130 _unselect_cb(void *data, Evas_Object *obj, void *event_info)
 131 {
 132    Elm_Object_Item *selected_item;
 133    Evas_Object *li = data;
 134
 135    selected_item = elm_list_selected_item_get(li);
 136    elm_list_item_selected_set(selected_item, EINA_FALSE);
 137 }
 138
 139 static void
 140 _print_cb(void *data, Evas_Object *obj, void *event_info)
 141 {
 142    const Eina_List *l, *items;
 143    Elm_Object_Item *list_it;
 144    Evas_Object *li = data;
 145
 146    items = elm_list_items_get(li);
 147    EINA_LIST_FOREACH(items, l, list_it)
 148      printf("%s\n", elm_object_item_text_get(list_it));
 149 }
 150
 151 static void
 152 _clear_cb(void *data, Evas_Object *obj, void *event_info)
 153 {
 154    Evas_Object *li = data;
 155    elm_list_clear(li);
 156 }
 157
 158 static void
 159 _select_next_cb(void *data, Evas_Object *obj, void *event_info)
 160 {
 161    Elm_Object_Item *selected_item, *next_item;
 162    Evas_Object *li = data;
 163
 164    selected_item = elm_list_selected_item_get(li);
 165    if (!selected_item) return;
 166
 167    next_item = elm_list_item_next(selected_item);
 168    if (next_item)
 169      elm_list_item_selected_set(next_item, EINA_TRUE);
 170 }
 171
 172 static void
 173 _insert_after_cb(void *data, Evas_Object *obj, void *event_info)
 174 {
 175    Elm_Object_Item *selected_item, *list_it;
 176    Evas_Object *li = data;
 177    char label[32];
 178
 179    selected_item = elm_list_selected_item_get(li);
 180    if (!selected_item) return;
 181
 182    snprintf(label, sizeof(label), "Item %i", counter++);
 183    list_it = elm_list_item_insert_after(li, selected_item, label, NULL, NULL,
 184                                         NULL, NULL);
 185    elm_list_go(li);
 186    if (!list_it)
 187      printf("Error adding item\n");
 188 }
 189
 190 static void
 191 _select_prev_cb(void *data, Evas_Object *obj, void *event_info)
 192 {
 193    Elm_Object_Item *selected_item, *prev_item;
 194    Evas_Object *li = data;
 195
 196    selected_item = elm_list_selected_item_get(li);
 197    if (!selected_item) return;
 198
 199    prev_item = elm_list_item_prev(selected_item);
 200    if (prev_item)
 201      elm_list_item_selected_set(prev_item, EINA_TRUE);
 202 }
 203
 204 static void
 205 _insert_before_cb(void *data, Evas_Object *obj, void *event_info)
 206 {
 207    Elm_Object_Item *selected_item, *list_it;
 208    Evas_Object *li = data;
 209    char label[32];
 210
 211    selected_item = elm_list_selected_item_get(li);
 212    if (!selected_item) return;
 213
 214    snprintf(label, sizeof(label), "Item %i", counter++);
 215    list_it = elm_list_item_insert_before(li, selected_item, label, NULL, NULL,
 216                                          NULL, NULL);
 217    elm_list_go(li);
 218    if (!list_it)
 219      printf("Error adding item\n");
 220 }
 221
 222 static void
 223 _set_separator_cb(void *data, Evas_Object *obj, void *event_info)
 224 {
 225    Elm_Object_Item *selected_item;
 226    Evas_Object *li = data;
 227
 228    selected_item = elm_list_selected_item_get(li);
 229    if (!selected_item) return;
 230    elm_list_item_separator_set(selected_item, EINA_TRUE);
 231    elm_list_go(li);
 232 }
 233
 234 static void
 235 _disable_cb(void *data, Evas_Object *obj, void *event_info)
 236 {
 237    Elm_Object_Item *selected_item;
 238    Evas_Object *li = data;
 239
 240    selected_item = elm_list_selected_item_get(li);
 241    if (!selected_item) return;
 242    elm_object_item_disabled_set(selected_item, EINA_TRUE);
 243 }
 244
 245 EAPI_MAIN int
 246 elm_main(int argc, char **argv)
 247 {
 248    Evas_Object *win, *bx, *hbx, *li, *bt;
 249
 250    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
 251
 252    win = elm_win_util_standard_add("list", "List Items Example");
 253    elm_win_autodel_set(win, EINA_TRUE);
 254
 255    bx = elm_box_add(win);
 256    evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 257    elm_win_resize_object_add(win, bx);
 258    evas_object_show(bx);
 259
 260    li = elm_list_add(win);
 261    evas_object_size_hint_weight_set(li, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 262    evas_object_size_hint_align_set(li, EVAS_HINT_FILL, EVAS_HINT_FILL);
 263    elm_box_pack_end(bx, li);
 264
 265    elm_list_item_append(li, "Item 0", NULL, NULL, NULL, NULL);
 266    elm_list_item_append(li, "Item 1", NULL, NULL, NULL, NULL);
 267    elm_list_item_append(li, "Item 2", NULL, NULL, NULL, NULL);
 268
 269    hbx = elm_box_add(win);
 270    elm_box_horizontal_set(hbx, EINA_TRUE);
 271    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 272    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 273    elm_box_pack_end(bx, hbx);
 274    evas_object_show(hbx);
 275
 276    bt = elm_button_add(win);
 277    elm_object_text_set(bt, "Prepend item");
 278    evas_object_smart_callback_add(bt, "clicked", _prepend_cb, li);
 279    elm_box_pack_end(hbx, bt);
 280    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 281    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 282    evas_object_show(bt);
 283
 284    bt = elm_button_add(win);
 285    elm_object_text_set(bt, "Append item");
 286    evas_object_smart_callback_add(bt, "clicked", _add_cb, li);
 287    elm_box_pack_end(hbx, bt);
 288    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 289    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 290    evas_object_show(bt);
 291
 292    hbx = elm_box_add(win);
 293    elm_box_horizontal_set(hbx, EINA_TRUE);
 294    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 295    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 296    elm_box_pack_end(bx, hbx);
 297    evas_object_show(hbx);
 298
 299    bt = elm_button_add(win);
 300    elm_object_text_set(bt, "Append with icon");
 301    evas_object_smart_callback_add(bt, "clicked", _add_ic_cb, li);
 302    elm_box_pack_end(hbx, bt);
 303    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 304    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 305    evas_object_show(bt);
 306
 307    bt = elm_button_add(win);
 308    elm_object_text_set(bt, "Append with selected function");
 309    evas_object_smart_callback_add(bt, "clicked", _add_func_cb, li);
 310    elm_box_pack_end(hbx, bt);
 311    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 312    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 313    evas_object_show(bt);
 314
 315    bt = elm_button_add(win);
 316    elm_object_text_set(bt, "Append with data");
 317    evas_object_smart_callback_add(bt, "clicked", _add_data_cb, li);
 318    elm_box_pack_end(hbx, bt);
 319    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 320    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 321    evas_object_show(bt);
 322
 323    hbx = elm_box_add(win);
 324    elm_box_horizontal_set(hbx, EINA_TRUE);
 325    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 326    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 327    elm_box_pack_end(bx, hbx);
 328    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 329    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 330    evas_object_show(hbx);
 331
 332    bt = elm_button_add(win);
 333    elm_object_text_set(bt, "Delete item");
 334    evas_object_smart_callback_add(bt, "clicked", _del_cb, li);
 335    elm_box_pack_end(hbx, bt);
 336    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 337    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 338    evas_object_show(bt);
 339
 340    bt = elm_button_add(win);
 341    elm_object_text_set(bt, "Unselect item");
 342    evas_object_smart_callback_add(bt, "clicked", _unselect_cb, li);
 343    elm_box_pack_end(hbx, bt);
 344    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 345    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 346    evas_object_show(bt);
 347
 348    bt = elm_button_add(win);
 349    elm_object_text_set(bt, "Print items");
 350    evas_object_smart_callback_add(bt, "clicked", _print_cb, li);
 351    elm_box_pack_end(hbx, bt);
 352    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 353    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 354    evas_object_show(bt);
 355
 356    bt = elm_button_add(win);
 357    elm_object_text_set(bt, "Clear");
 358    evas_object_smart_callback_add(bt, "clicked", _clear_cb, li);
 359    elm_box_pack_end(hbx, bt);
 360    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 361    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 362    evas_object_show(bt);
 363
 364    hbx = elm_box_add(win);
 365    elm_box_horizontal_set(hbx, EINA_TRUE);
 366    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 367    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 368    elm_box_pack_end(bx, hbx);
 369    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 370    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 371    evas_object_show(hbx);
 372
 373    bt = elm_button_add(win);
 374    elm_object_text_set(bt, "Select next item");
 375    evas_object_smart_callback_add(bt, "clicked", _select_next_cb, li);
 376    elm_box_pack_end(hbx, bt);
 377    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 378    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 379    evas_object_show(bt);
 380
 381    bt = elm_button_add(win);
 382    elm_object_text_set(bt, "Insert after item");
 383    evas_object_smart_callback_add(bt, "clicked", _insert_after_cb, li);
 384    elm_box_pack_end(hbx, bt);
 385    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 386    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 387    evas_object_show(bt);
 388
 389    bt = elm_button_add(win);
 390    elm_object_text_set(bt, "Select previous item");
 391    evas_object_smart_callback_add(bt, "clicked", _select_prev_cb, li);
 392    elm_box_pack_end(hbx, bt);
 393    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 394    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 395    evas_object_show(bt);
 396
 397    bt = elm_button_add(win);
 398    elm_object_text_set(bt, "Insert before item");
 399    evas_object_smart_callback_add(bt, "clicked", _insert_before_cb, li);
 400    elm_box_pack_end(hbx, bt);
 401    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 402    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 403    evas_object_show(bt);
 404
 405    hbx = elm_box_add(win);
 406    elm_box_horizontal_set(hbx, EINA_TRUE);
 407    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 408    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 409    elm_box_pack_end(bx, hbx);
 410    evas_object_show(hbx);
 411
 412    bt = elm_button_add(win);
 413    elm_object_text_set(bt, "Set as separator");
 414    evas_object_smart_callback_add(bt, "clicked", _set_separator_cb, li);
 415    elm_box_pack_end(hbx, bt);
 416    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 417    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 418    evas_object_show(bt);
 419
 420    bt = elm_button_add(win);
 421    elm_object_text_set(bt, "Disable item");
 422    evas_object_smart_callback_add(bt, "clicked", _disable_cb, li);
 423    elm_box_pack_end(hbx, bt);
 424    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 425    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 426    evas_object_show(bt);
 427
 428    elm_list_go(li);
 429    evas_object_show(li);
 430
 431    evas_object_resize(win, 320, 600);
 432    evas_object_show(win);
 433
 434    elm_run();
 435
 436    return 0;
 437 }
 438 ELM_MAIN()