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 `pkg-config --cflags --libs elementary` list_example_03.c -o list_example_03
   9  * @endverbatim
  10  */
  11
  12 #include <Elementary.h>
  13 #ifdef HAVE_CONFIG_H
  14 # include "elementary_config.h"
  15 #else
  16 # define __UNUSED__
  17 #endif
  18
  19 static int counter = 3;
  20
  21 static void
  22 _on_done(void        *data __UNUSED__,
  23          Evas_Object *obj __UNUSED__,
  24          void        *event_info __UNUSED__)
  25 {
  26    elm_exit();
  27 }
  28
  29 static void
  30 _prepend_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  31 {
  32    Elm_Object_Item *list_it;
  33    Evas_Object *li = data;
  34    char label[32];
  35
  36    snprintf(label, sizeof(label), "Item %i", counter++);
  37    list_it = elm_list_item_prepend(li, label, NULL, NULL, NULL, NULL);
  38    if (!list_it)
  39      printf("Error adding item\n");
  40 }
  41
  42 static void
  43 _add_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  44 {
  45    Elm_Object_Item *list_it;
  46    Evas_Object *li = data;
  47    char label[32];
  48
  49    snprintf(label, sizeof(label), "Item %i", counter++);
  50    list_it = elm_list_item_append(li, label, NULL, NULL, NULL, NULL);
  51    if (!list_it)
  52      printf("Error adding item\n");
  53 }
  54
  55 static void
  56 _add_ic_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  57 {
  58    Elm_Object_Item *list_it;
  59    Evas_Object *ic, *li = data;
  60    char label[32];
  61
  62    snprintf(label, sizeof(label), "Item %i", counter++);
  63    ic = elm_icon_add(li);
  64    elm_icon_standard_set(ic, "home");
  65    elm_icon_resizable_set(ic, EINA_FALSE, EINA_FALSE);
  66
  67    list_it = elm_list_item_append(li, label, ic,  NULL, NULL, NULL);
  68    if (!list_it)
  69      printf("Error adding item with icon\n");
  70 }
  71
  72 static void
  73 _sel_cb(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
  74 {
  75    Elm_Object_Item *list_it = event_info;
  76    printf("Selected label: %s\n", elm_object_item_text_get(list_it));
  77 }
  78
  79 static void
  80 _add_func_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
  81 {
  82    Elm_Object_Item *list_it;
  83    Evas_Object *li = data;
  84    char label[32];
  85
  86    snprintf(label, sizeof(label), "Item %i", counter++);
  87    list_it = elm_list_item_append(li, label, NULL, NULL, _sel_cb, NULL);
  88    if (!list_it)
  89      printf("Error adding item\n");
  90 }
  91
  92 static void
  93 _sel_data_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info)
  94 {
  95    char *content = data;
  96    Elm_Object_Item *list_it = event_info;
  97    printf("Selected label: %s with data: %s\n",
  98           elm_object_item_text_get(list_it), content);
  99 }
 100
 101 static void
 102 _free_data(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 103 {
 104    free(data);
 105 }
 106
 107 static void
 108 _add_data_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 109 {
 110    Elm_Object_Item *list_it;
 111    Evas_Object *li = data;
 112    char label[32];
 113    char *content = malloc(sizeof(char) * 32);
 114
 115    snprintf(content, 32, "Item content %i", counter);
 116    snprintf(label, sizeof(label), "Item %i", counter++);
 117    list_it = elm_list_item_append(li, label, NULL, NULL, _sel_data_cb, content);
 118    if (!list_it) {
 119      printf("Error adding item\n");
 120      return;
 121    }
 122    elm_object_item_del_cb_set(list_it, _free_data);
 123 }
 124
 125 static void
 126 _del_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 127 {
 128    Elm_Object_Item *selected_item;
 129    Evas_Object *li = data;
 130
 131    selected_item = elm_list_selected_item_get(li);
 132    elm_object_item_del(selected_item);
 133 }
 134
 135 static void
 136 _unselect_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 137 {
 138    Elm_Object_Item *selected_item;
 139    Evas_Object *li = data;
 140
 141    selected_item = elm_list_selected_item_get(li);
 142    elm_list_item_selected_set(selected_item, EINA_FALSE);
 143 }
 144
 145 static void
 146 _print_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 147 {
 148    const Eina_List *l, *items;
 149    Elm_Object_Item *list_it;
 150    Evas_Object *li = data;
 151
 152    items = elm_list_items_get(li);
 153    EINA_LIST_FOREACH(items, l, list_it)
 154      printf("%s\n", elm_object_item_text_get(list_it));
 155 }
 156
 157 static void
 158 _clear_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 159 {
 160    Evas_Object *li = data;
 161    elm_list_clear(li);
 162 }
 163
 164 static void
 165 _select_next_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 166 {
 167    Elm_Object_Item *selected_item, *next_item;
 168    Evas_Object *li = data;
 169
 170    selected_item = elm_list_selected_item_get(li);
 171    if (!selected_item) return;
 172
 173    next_item = elm_list_item_next(selected_item);
 174    if (next_item)
 175      elm_list_item_selected_set(next_item, EINA_TRUE);
 176 }
 177
 178 static void
 179 _insert_after_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 180 {
 181    Elm_Object_Item *selected_item, *list_it;
 182    Evas_Object *li = data;
 183    char label[32];
 184
 185    selected_item = elm_list_selected_item_get(li);
 186    if (!selected_item) return;
 187
 188    snprintf(label, sizeof(label), "Item %i", counter++);
 189    list_it = elm_list_item_insert_after(li, selected_item, label, NULL, NULL,
 190                                         NULL, NULL);
 191    if (!list_it)
 192      printf("Error adding item\n");
 193 }
 194
 195 static void
 196 _select_prev_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 197 {
 198    Elm_Object_Item *selected_item, *prev_item;
 199    Evas_Object *li = data;
 200
 201    selected_item = elm_list_selected_item_get(li);
 202    if (!selected_item) return;
 203
 204    prev_item = elm_list_item_prev(selected_item);
 205    if (prev_item)
 206      elm_list_item_selected_set(prev_item, EINA_TRUE);
 207 }
 208
 209 static void
 210 _insert_before_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 211 {
 212    Elm_Object_Item *selected_item, *list_it;
 213    Evas_Object *li = data;
 214    char label[32];
 215
 216    selected_item = elm_list_selected_item_get(li);
 217    if (!selected_item) return;
 218
 219    snprintf(label, sizeof(label), "Item %i", counter++);
 220    list_it = elm_list_item_insert_before(li, selected_item, label, NULL, NULL,
 221                                     NULL, NULL);
 222    if (!list_it)
 223      printf("Error adding item\n");
 224 }
 225
 226 static void
 227 _set_separator_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 228 {
 229    Elm_Object_Item *selected_item;
 230    Evas_Object *li = data;
 231
 232    selected_item = elm_list_selected_item_get(li);
 233    if (!selected_item) return;
 234    elm_list_item_separator_set(selected_item, EINA_TRUE);
 235 }
 236
 237 static void
 238 _disable_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 239 {
 240    Elm_Object_Item *selected_item;
 241    Evas_Object *li = data;
 242
 243    selected_item = elm_list_selected_item_get(li);
 244    if (!selected_item) return;
 245    elm_list_item_disabled_set(selected_item, EINA_TRUE);
 246 }
 247
 248 EAPI_MAIN int
 249 elm_main(int argc __UNUSED__, char **argv __UNUSED__)
 250 {
 251    Evas_Object *win, *bg, *bx, *hbx, *li, *bt;
 252
 253    win = elm_win_add(NULL, "list", ELM_WIN_BASIC);
 254    elm_win_title_set(win, "List Items Example");
 255    evas_object_smart_callback_add(win, "delete,request", _on_done, NULL);
 256
 257    bg = elm_bg_add(win);
 258    elm_win_resize_object_add(win, bg);
 259    evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 260    evas_object_show(bg);
 261
 262    bx = elm_box_add(win);
 263    evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 264    elm_win_resize_object_add(win, bx);
 265    evas_object_show(bx);
 266
 267    li = elm_list_add(win);
 268    evas_object_size_hint_weight_set(li, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 269    evas_object_size_hint_align_set(li, EVAS_HINT_FILL, EVAS_HINT_FILL);
 270    elm_box_pack_end(bx, li);
 271
 272    elm_list_item_append(li, "Item 0", NULL, NULL, NULL, NULL);
 273    elm_list_item_append(li, "Item 1", NULL, NULL, NULL, NULL);
 274    elm_list_item_append(li, "Item 2", NULL, NULL, NULL, NULL);
 275
 276    hbx = elm_box_add(win);
 277    elm_box_horizontal_set(hbx, EINA_TRUE);
 278    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 279    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 280    elm_box_pack_end(bx, hbx);
 281    evas_object_show(hbx);
 282
 283    bt = elm_button_add(win);
 284    elm_object_text_set(bt, "Prepend item");
 285    evas_object_smart_callback_add(bt, "clicked", _prepend_cb, li);
 286    elm_box_pack_end(hbx, bt);
 287    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 288    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 289    evas_object_show(bt);
 290
 291    bt = elm_button_add(win);
 292    elm_object_text_set(bt, "Append item");
 293    evas_object_smart_callback_add(bt, "clicked", _add_cb, li);
 294    elm_box_pack_end(hbx, bt);
 295    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 296    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 297    evas_object_show(bt);
 298
 299    hbx = elm_box_add(win);
 300    elm_box_horizontal_set(hbx, EINA_TRUE);
 301    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 302    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 303    elm_box_pack_end(bx, hbx);
 304    evas_object_show(hbx);
 305
 306    bt = elm_button_add(win);
 307    elm_object_text_set(bt, "Append with icon");
 308    evas_object_smart_callback_add(bt, "clicked", _add_ic_cb, li);
 309    elm_box_pack_end(hbx, bt);
 310    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 311    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 312    evas_object_show(bt);
 313
 314    bt = elm_button_add(win);
 315    elm_object_text_set(bt, "Append with selected function");
 316    evas_object_smart_callback_add(bt, "clicked", _add_func_cb, li);
 317    elm_box_pack_end(hbx, bt);
 318    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 319    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 320    evas_object_show(bt);
 321
 322    bt = elm_button_add(win);
 323    elm_object_text_set(bt, "Append with data");
 324    evas_object_smart_callback_add(bt, "clicked", _add_data_cb, li);
 325    elm_box_pack_end(hbx, bt);
 326    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 327    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 328    evas_object_show(bt);
 329
 330    hbx = elm_box_add(win);
 331    elm_box_horizontal_set(hbx, EINA_TRUE);
 332    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 333    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 334    elm_box_pack_end(bx, hbx);
 335    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 336    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 337    evas_object_show(hbx);
 338
 339    bt = elm_button_add(win);
 340    elm_object_text_set(bt, "Delete item");
 341    evas_object_smart_callback_add(bt, "clicked", _del_cb, li);
 342    elm_box_pack_end(hbx, bt);
 343    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 344    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 345    evas_object_show(bt);
 346
 347    bt = elm_button_add(win);
 348    elm_object_text_set(bt, "Unselect item");
 349    evas_object_smart_callback_add(bt, "clicked", _unselect_cb, li);
 350    elm_box_pack_end(hbx, bt);
 351    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 352    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 353    evas_object_show(bt);
 354
 355    bt = elm_button_add(win);
 356    elm_object_text_set(bt, "Print items");
 357    evas_object_smart_callback_add(bt, "clicked", _print_cb, li);
 358    elm_box_pack_end(hbx, bt);
 359    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 360    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 361    evas_object_show(bt);
 362
 363    bt = elm_button_add(win);
 364    elm_object_text_set(bt, "Clear");
 365    evas_object_smart_callback_add(bt, "clicked", _clear_cb, li);
 366    elm_box_pack_end(hbx, bt);
 367    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 368    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 369    evas_object_show(bt);
 370
 371    hbx = elm_box_add(win);
 372    elm_box_horizontal_set(hbx, EINA_TRUE);
 373    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 374    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 375    elm_box_pack_end(bx, hbx);
 376    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 377    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 378    evas_object_show(hbx);
 379
 380    bt = elm_button_add(win);
 381    elm_object_text_set(bt, "Select next item");
 382    evas_object_smart_callback_add(bt, "clicked", _select_next_cb, li);
 383    elm_box_pack_end(hbx, bt);
 384    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 385    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 386    evas_object_show(bt);
 387
 388    bt = elm_button_add(win);
 389    elm_object_text_set(bt, "Insert after item");
 390    evas_object_smart_callback_add(bt, "clicked", _insert_after_cb, li);
 391    elm_box_pack_end(hbx, bt);
 392    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 393    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 394    evas_object_show(bt);
 395
 396    bt = elm_button_add(win);
 397    elm_object_text_set(bt, "Select previous item");
 398    evas_object_smart_callback_add(bt, "clicked", _select_prev_cb, li);
 399    elm_box_pack_end(hbx, bt);
 400    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 401    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 402    evas_object_show(bt);
 403
 404    bt = elm_button_add(win);
 405    elm_object_text_set(bt, "Insert before item");
 406    evas_object_smart_callback_add(bt, "clicked", _insert_before_cb, li);
 407    elm_box_pack_end(hbx, bt);
 408    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 409    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 410    evas_object_show(bt);
 411
 412    hbx = elm_box_add(win);
 413    elm_box_horizontal_set(hbx, EINA_TRUE);
 414    evas_object_size_hint_weight_set(hbx, EVAS_HINT_EXPAND, 0);
 415    evas_object_size_hint_align_set(hbx, EVAS_HINT_FILL, 0);
 416    elm_box_pack_end(bx, hbx);
 417    evas_object_show(hbx);
 418
 419    bt = elm_button_add(win);
 420    elm_object_text_set(bt, "Set as separator");
 421    evas_object_smart_callback_add(bt, "clicked", _set_separator_cb, li);
 422    elm_box_pack_end(hbx, bt);
 423    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 424    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 425    evas_object_show(bt);
 426
 427    bt = elm_button_add(win);
 428    elm_object_text_set(bt, "Disable item");
 429    evas_object_smart_callback_add(bt, "clicked", _disable_cb, li);
 430    elm_box_pack_end(hbx, bt);
 431    evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0);
 432    evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, 0);
 433    evas_object_show(bt);
 434
 435    elm_list_go(li);
 436    evas_object_show(li);
 437
 438    evas_object_resize(win, 320, 600);
 439    evas_object_show(win);
 440
 441    elm_run();
 442    return 0;
 443 }
 444 ELM_MAIN()