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 _on_done(void        *data,
  18          Evas_Object *obj,
  19          void        *event_info)
  20 {
  21    elm_exit();
  22 }
  23
  24 static void
  25 _prepend_cb(void *data, Evas_Object *obj, void *event_info)
  26 {
  27    Elm_Object_Item *list_it;
  28    Evas_Object *li = data;
  29    char label[32];
  30
  31    snprintf(label, sizeof(label), "Item %i", counter++);
  32    list_it = elm_list_item_prepend(li, label, NULL, NULL, NULL, NULL);
  33    if (!list_it)
  34      printf("Error adding item\n");
  35 }
  36
  37 static void
  38 _add_cb(void *data, Evas_Object *obj, void *event_info)
  39 {
  40    Elm_Object_Item *list_it;
  41    Evas_Object *li = data;
  42    char label[32];
  43
  44    snprintf(label, sizeof(label), "Item %i", counter++);
  45    list_it = elm_list_item_append(li, label, NULL, NULL, NULL, NULL);
  46    if (!list_it)
  47      printf("Error adding item\n");
  48 }
  49
  50 static void
  51 _add_ic_cb(void *data, Evas_Object *obj, void *event_info)
  52 {
  53    Elm_Object_Item *list_it;
  54    Evas_Object *ic, *li = data;
  55    char label[32];
  56
  57    snprintf(label, sizeof(label), "Item %i", counter++);
  58    ic = elm_icon_add(li);
  59    elm_icon_standard_set(ic, "home");
  60    elm_image_resizable_set(ic, EINA_FALSE, EINA_FALSE);
  61
  62    list_it = elm_list_item_append(li, label, ic,  NULL, NULL, NULL);
  63    if (!list_it)
  64      printf("Error adding item with icon\n");
  65 }
  66
  67 static void
  68 _sel_cb(void *data, Evas_Object *obj, void *event_info)
  69 {
  70    Elm_Object_Item *list_it = event_info;
  71    printf("Selected label: %s\n", elm_object_item_text_get(list_it));
  72 }
  73
  74 static void
  75 _add_func_cb(void *data, Evas_Object *obj, void *event_info)
  76 {
  77    Elm_Object_Item *list_it;
  78    Evas_Object *li = data;
  79    char label[32];
  80
  81    snprintf(label, sizeof(label), "Item %i", counter++);
  82    list_it = elm_list_item_append(li, label, NULL, NULL, _sel_cb, NULL);
  83    if (!list_it)
  84      printf("Error adding item\n");
  85 }
  86
  87 static void
  88 _sel_data_cb(void *data, Evas_Object *obj, void *event_info)
  89 {
  90    char *content = data;
  91    Elm_Object_Item *list_it = event_info;
  92    printf("Selected label: %s with data: %s\n",
  93           elm_object_item_text_get(list_it), content);
  94 }
  95
  96 static void
  97 _free_data(void *data, Evas_Object *obj, void *event_info)
  98 {
  99    free(data);
 100 }
 101
 102 static void
 103 _add_data_cb(void *data, Evas_Object *obj, void *event_info)
 104 {
 105    Elm_Object_Item *list_it;
 106    Evas_Object *li = data;
 107    char label[32];
 108    char *content = malloc(sizeof(char) * 32);
 109
 110    snprintf(content, 32, "Item content %i", counter);
 111    snprintf(label, sizeof(label), "Item %i", counter++);
 112    list_it = elm_list_item_append(li, label, NULL, NULL, _sel_data_cb, content);
 113    if (!list_it) {
 114      printf("Error adding item\n");
 115      return;
 116    }
 117    elm_object_item_del_cb_set(list_it, _free_data);
 118 }
 119
 120 static void
 121 _del_cb(void *data, Evas_Object *obj, void *event_info)
 122 {
 123    Elm_Object_Item *selected_item;
 124    Evas_Object *li = data;
 125
 126    selected_item = elm_list_selected_item_get(li);
 127    elm_object_item_del(selected_item);
 128 }
 129
 130 static void
 131 _unselect_cb(void *data, Evas_Object *obj, void *event_info)
 132 {
 133    Elm_Object_Item *selected_item;
 134    Evas_Object *li = data;
 135
 136    selected_item = elm_list_selected_item_get(li);
 137    elm_list_item_selected_set(selected_item, EINA_FALSE);
 138 }
 139
 140 static void
 141 _print_cb(void *data, Evas_Object *obj, void *event_info)
 142 {
 143    const Eina_List *l, *items;
 144    Elm_Object_Item *list_it;
 145    Evas_Object *li = data;
 146
 147    items = elm_list_items_get(li);
 148    EINA_LIST_FOREACH(items, l, list_it)
 149      printf("%s\n", elm_object_item_text_get(list_it));
 150 }
 151
 152 static void
 153 _clear_cb(void *data, Evas_Object *obj, void *event_info)
 154 {
 155    Evas_Object *li = data;
 156    elm_list_clear(li);
 157 }
 158
 159 static void
 160 _select_next_cb(void *data, Evas_Object *obj, void *event_info)
 161 {
 162    Elm_Object_Item *selected_item, *next_item;
 163    Evas_Object *li = data;
 164
 165    selected_item = elm_list_selected_item_get(li);
 166    if (!selected_item) return;
 167
 168    next_item = elm_list_item_next(selected_item);
 169    if (next_item)
 170      elm_list_item_selected_set(next_item, EINA_TRUE);
 171 }
 172
 173 static void
 174 _insert_after_cb(void *data, Evas_Object *obj, void *event_info)
 175 {
 176    Elm_Object_Item *selected_item, *list_it;
 177    Evas_Object *li = data;
 178    char label[32];
 179
 180    selected_item = elm_list_selected_item_get(li);
 181    if (!selected_item) return;
 182
 183    snprintf(label, sizeof(label), "Item %i", counter++);
 184    list_it = elm_list_item_insert_after(li, selected_item, label, NULL, NULL,
 185                                         NULL, NULL);
 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    if (!list_it)
 218      printf("Error adding item\n");
 219 }
 220
 221 static void
 222 _set_separator_cb(void *data, Evas_Object *obj, void *event_info)
 223 {
 224    Elm_Object_Item *selected_item;
 225    Evas_Object *li = data;
 226
 227    selected_item = elm_list_selected_item_get(li);
 228    if (!selected_item) return;
 229    elm_list_item_separator_set(selected_item, EINA_TRUE);
 230 }
 231
 232 static void
 233 _disable_cb(void *data, Evas_Object *obj, void *event_info)
 234 {
 235    Elm_Object_Item *selected_item;
 236    Evas_Object *li = data;
 237
 238    selected_item = elm_list_selected_item_get(li);
 239    if (!selected_item) return;
 240    elm_object_item_disabled_set(selected_item, EINA_TRUE);
 241 }
 242
 243 EAPI_MAIN int
 244 elm_main(int argc, char **argv)
 245 {
 246    Evas_Object *win, *bg, *bx, *hbx, *li, *bt;
 247
 248    win = elm_win_add(NULL, "list", ELM_WIN_BASIC);
 249    elm_win_title_set(win, "List Items Example");
 250    evas_object_smart_callback_add(win, "delete,request", _on_done, NULL);
 251
 252    bg = elm_bg_add(win);
 253    elm_win_resize_object_add(win, bg);
 254    evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 255    evas_object_show(bg);
 256
 257    bx = elm_box_add(win);
 258    evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 259    elm_win_resize_object_add(win, bx);
 260    evas_object_show(bx);
 261
 262    li = elm_list_add(win);
 263    evas_object_size_hint_weight_set(li, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 264    evas_object_size_hint_align_set(li, EVAS_HINT_FILL, EVAS_HINT_FILL);
 265    elm_box_pack_end(bx, li);
 266
 267    elm_list_item_append(li, "Item 0", NULL, NULL, NULL, NULL);
 268    elm_list_item_append(li, "Item 1", NULL, NULL, NULL, NULL);
 269    elm_list_item_append(li, "Item 2", NULL, NULL, NULL, NULL);
 270
 271    hbx = elm_box_add(win);
 272    elm_box_horizontal_set(hbx, EINA_TRUE);
 273    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 274    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 275    elm_box_pack_end(bx, hbx);
 276    evas_object_show(hbx);
 277
 278    bt = elm_button_add(win);
 279    elm_object_text_set(bt, "Prepend item");
 280    evas_object_smart_callback_add(bt, "clicked", _prepend_cb, li);
 281    elm_box_pack_end(hbx, bt);
 282    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 283    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 284    evas_object_show(bt);
 285
 286    bt = elm_button_add(win);
 287    elm_object_text_set(bt, "Append item");
 288    evas_object_smart_callback_add(bt, "clicked", _add_cb, li);
 289    elm_box_pack_end(hbx, bt);
 290    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 291    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 292    evas_object_show(bt);
 293
 294    hbx = elm_box_add(win);
 295    elm_box_horizontal_set(hbx, EINA_TRUE);
 296    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 297    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 298    elm_box_pack_end(bx, hbx);
 299    evas_object_show(hbx);
 300
 301    bt = elm_button_add(win);
 302    elm_object_text_set(bt, "Append with icon");
 303    evas_object_smart_callback_add(bt, "clicked", _add_ic_cb, li);
 304    elm_box_pack_end(hbx, bt);
 305    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 306    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 307    evas_object_show(bt);
 308
 309    bt = elm_button_add(win);
 310    elm_object_text_set(bt, "Append with selected function");
 311    evas_object_smart_callback_add(bt, "clicked", _add_func_cb, li);
 312    elm_box_pack_end(hbx, bt);
 313    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 314    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 315    evas_object_show(bt);
 316
 317    bt = elm_button_add(win);
 318    elm_object_text_set(bt, "Append with data");
 319    evas_object_smart_callback_add(bt, "clicked", _add_data_cb, li);
 320    elm_box_pack_end(hbx, bt);
 321    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 322    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 323    evas_object_show(bt);
 324
 325    hbx = elm_box_add(win);
 326    elm_box_horizontal_set(hbx, EINA_TRUE);
 327    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 328    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 329    elm_box_pack_end(bx, hbx);
 330    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 331    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 332    evas_object_show(hbx);
 333
 334    bt = elm_button_add(win);
 335    elm_object_text_set(bt, "Delete item");
 336    evas_object_smart_callback_add(bt, "clicked", _del_cb, li);
 337    elm_box_pack_end(hbx, bt);
 338    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 339    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 340    evas_object_show(bt);
 341
 342    bt = elm_button_add(win);
 343    elm_object_text_set(bt, "Unselect item");
 344    evas_object_smart_callback_add(bt, "clicked", _unselect_cb, li);
 345    elm_box_pack_end(hbx, bt);
 346    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 347    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 348    evas_object_show(bt);
 349
 350    bt = elm_button_add(win);
 351    elm_object_text_set(bt, "Print items");
 352    evas_object_smart_callback_add(bt, "clicked", _print_cb, li);
 353    elm_box_pack_end(hbx, bt);
 354    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 355    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 356    evas_object_show(bt);
 357
 358    bt = elm_button_add(win);
 359    elm_object_text_set(bt, "Clear");
 360    evas_object_smart_callback_add(bt, "clicked", _clear_cb, li);
 361    elm_box_pack_end(hbx, bt);
 362    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 363    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 364    evas_object_show(bt);
 365
 366    hbx = elm_box_add(win);
 367    elm_box_horizontal_set(hbx, EINA_TRUE);
 368    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 369    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 370    elm_box_pack_end(bx, hbx);
 371    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 372    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 373    evas_object_show(hbx);
 374
 375    bt = elm_button_add(win);
 376    elm_object_text_set(bt, "Select next item");
 377    evas_object_smart_callback_add(bt, "clicked", _select_next_cb, li);
 378    elm_box_pack_end(hbx, bt);
 379    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 380    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 381    evas_object_show(bt);
 382
 383    bt = elm_button_add(win);
 384    elm_object_text_set(bt, "Insert after item");
 385    evas_object_smart_callback_add(bt, "clicked", _insert_after_cb, li);
 386    elm_box_pack_end(hbx, bt);
 387    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 388    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 389    evas_object_show(bt);
 390
 391    bt = elm_button_add(win);
 392    elm_object_text_set(bt, "Select previous item");
 393    evas_object_smart_callback_add(bt, "clicked", _select_prev_cb, li);
 394    elm_box_pack_end(hbx, bt);
 395    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 396    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 397    evas_object_show(bt);
 398
 399    bt = elm_button_add(win);
 400    elm_object_text_set(bt, "Insert before item");
 401    evas_object_smart_callback_add(bt, "clicked", _insert_before_cb, li);
 402    elm_box_pack_end(hbx, bt);
 403    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 404    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 405    evas_object_show(bt);
 406
 407    hbx = elm_box_add(win);
 408    elm_box_horizontal_set(hbx, EINA_TRUE);
 409    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 410    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 411    elm_box_pack_end(bx, hbx);
 412    evas_object_show(hbx);
 413
 414    bt = elm_button_add(win);
 415    elm_object_text_set(bt, "Set as separator");
 416    evas_object_smart_callback_add(bt, "clicked", _set_separator_cb, li);
 417    elm_box_pack_end(hbx, bt);
 418    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 419    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 420    evas_object_show(bt);
 421
 422    bt = elm_button_add(win);
 423    elm_object_text_set(bt, "Disable item");
 424    evas_object_smart_callback_add(bt, "clicked", _disable_cb, li);
 425    elm_box_pack_end(hbx, bt);
 426    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 427    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 428    evas_object_show(bt);
 429
 430    elm_list_go(li);
 431    evas_object_show(li);
 432
 433    evas_object_resize(win, 320, 600);
 434    evas_object_show(win);
 435
 436    elm_run();
 437    elm_shutdown();
 438
 439    return 0;
 440 }
 441 ELM_MAIN()