src/lib/elm_diskselector.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3 #include "els_scroller.h"
   4
   5 #ifndef MAX
   6 # define MAX(a, b) (((a) > (b)) ? (a) : (b))
   7 #endif
   8
   9 #ifndef CEIL
  10 #define CEIL(a) (((a) % 2 != 0) ? ((a) / 2 + 1) : ((a) / 2))
  11 #endif
  12
  13 #define DISPLAY_ITEM_NUM_MIN 3
  14
  15 typedef struct _Widget_Data Widget_Data;
  16 typedef struct _Elm_Diskselector_Item Elm_Diskselector_Item;
  17
  18 struct _Widget_Data
  19 {
  20    Evas_Object *self;
  21    Evas_Object *scroller;
  22    Evas_Object *main_box;
  23    Evas_Object *left_blank;
  24    Evas_Object *right_blank;
  25    Elm_Diskselector_Item *selected_item;
  26    Elm_Diskselector_Item *first;
  27    Elm_Diskselector_Item *second;
  28    Elm_Diskselector_Item *s_last;
  29    Elm_Diskselector_Item *last;
  30    Eina_List *items;
  31    Eina_List *r_items;
  32    Eina_List *over_items;
  33    Eina_List *under_items;
  34    int item_count, len_threshold, len_side, display_item_num;
  35    Ecore_Idle_Enterer *idler;
  36    Ecore_Idle_Enterer *check_idler;
  37    Evas_Coord minw, minh;
  38    Eina_Bool init:1;
  39    Eina_Bool round:1;
  40    Eina_Bool display_item_num_by_api:1;
  41 };
  42
  43 struct _Elm_Diskselector_Item
  44 {
  45    ELM_WIDGET_ITEM;
  46    Eina_List *node;
  47    Evas_Object *icon;
  48    const char *label;
  49    Evas_Smart_Cb func;
  50 };
  51
  52 static const char *widtype = NULL;
  53
  54 static Eina_Bool _move_scroller(void *data);
  55 static void _del_hook(Evas_Object * obj);
  56 static void _del_pre_hook(Evas_Object * obj);
  57 static void _sizing_eval(Evas_Object * obj);
  58 static void _theme_hook(Evas_Object * obj);
  59 static void _on_focus_hook(void *data, Evas_Object *obj);
  60 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src, Evas_Callback_Type type, void *event_info);
  61 static void _sub_del(void *data, Evas_Object * obj, void *event_info);
  62 static void _round_items_del(Widget_Data *wd);
  63 static void _scroller_move_cb(void *data, Evas_Object *obj, void *event_info);
  64 static void _item_click_cb(void *data, Evas_Object *obj __UNUSED__,
  65                            const char *emission __UNUSED__,
  66                            const char *source __UNUSED__);
  67 static void _selected_item_indicate(Elm_Diskselector_Item *it);
  68 static void _item_text_set_hook(Elm_Object_Item *it,
  69                                 const char *part,
  70                                 const char *label);
  71 static const char * _item_text_get_hook(const Elm_Object_Item *it,
  72                                         const char *part);
  73 static void _item_content_set_hook(Elm_Object_Item *it,
  74                                    const char *part,
  75                                    Evas_Object *content);
  76 static Evas_Object * _item_content_get_hook(const Elm_Object_Item *it,
  77                                             const char *part);
  78
  79 static const char SIG_SELECTED[] = "selected";
  80 static const char SIG_SCROLL_ANIM_START[] = "scroll,anim,start";
  81 static const char SIG_SCROLL_ANIM_STOP[] = "scroll,anim,stop";
  82 static const char SIG_SCROLL_DRAG_START[] = "scroll,drag,start";
  83 static const char SIG_SCROLL_DRAG_STOP[] = "scroll,drag,stop";
  84
  85 static const Evas_Smart_Cb_Description _signals[] = {
  86        {SIG_SELECTED, ""},
  87        {SIG_SCROLL_ANIM_START, ""},
  88        {SIG_SCROLL_ANIM_STOP, ""},
  89        {SIG_SCROLL_DRAG_START, ""},
  90        {SIG_SCROLL_DRAG_STOP, ""},
  91        {NULL, NULL}
  92 };
  93
  94 static void
  95 _diskselector_object_resize(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
  96 {
  97    Widget_Data *wd;
  98    Evas_Coord w, h;
  99
 100    wd = elm_widget_data_get(data);
 101    if (!wd) return;
 102
 103    if ((wd->minw == -1) && (wd->minh == -1))
 104       elm_coords_finger_size_adjust(6, &wd->minw, 1, &wd->minh);
 105    edje_object_size_min_restricted_calc
 106       (elm_smart_scroller_edje_object_get
 107           (wd->scroller), &wd->minw, &wd->minh, wd->minw, wd->minh);
 108    evas_object_size_hint_min_set(obj, wd->minw, wd->minh);
 109    evas_object_size_hint_max_set(obj, -1, -1);
 110
 111    evas_object_geometry_get(wd->scroller, NULL, NULL, &w, &h);
 112    if (wd->round)
 113      evas_object_resize(wd->main_box, (w / wd->display_item_num) * (wd->item_count + (CEIL(wd->display_item_num) * 2)), h);
 114    else
 115      evas_object_resize(wd->main_box, (w / wd->display_item_num) * (wd->item_count + CEIL(wd->display_item_num)), h);
 116
 117    elm_smart_scroller_paging_set(wd->scroller, 0, 0,
 118                                  (int)(w / wd->display_item_num), 0);
 119
 120    if (!wd->idler)
 121      wd->idler = ecore_idle_enterer_before_add(_move_scroller, data);
 122 }
 123
 124 static void
 125 _item_del(Elm_Diskselector_Item *item)
 126 {
 127    if (!item) return;
 128    eina_stringshare_del(item->label);
 129    if (item->icon)
 130      evas_object_del(item->icon);
 131 }
 132
 133 static int
 134 _count_letter(const char *str)
 135 {
 136    int pos = 0;
 137    int code = 0, chnum;
 138
 139    for (chnum = 0; ; chnum++)
 140      {
 141         pos = evas_string_char_next_get(str, pos, &code);
 142         if (code == 0) break;
 143      }
 144    return chnum;
 145 }
 146
 147 static int
 148 _check_letter(const char *str, int length)
 149 {
 150    int pos = 0;
 151    int code = 0, chnum;
 152
 153    for (chnum = 0; ; chnum++)
 154      {
 155         if (chnum == length) break;
 156         pos = evas_string_char_next_get(str, pos, &code);
 157         if (code == 0) break;
 158      }
 159    return pos;
 160 }
 161
 162 static Eina_Bool
 163 _check_string(void *data)
 164 {
 165    int mid, steps, length, diff;
 166    Elm_Diskselector_Item *it;
 167    Eina_List *list, *l;
 168    Evas_Coord ox, ow;
 169    char buf[1024];
 170    Widget_Data *wd = data;
 171
 172    evas_object_geometry_get(wd->scroller, &ox, NULL, &ow, NULL);
 173    if (ow <= 0)
 174      return EINA_FALSE;
 175    if (!wd->init)
 176      return EINA_FALSE;
 177    if (!wd->round)
 178      list = wd->items;
 179    else
 180      list = wd->r_items;
 181
 182    EINA_LIST_FOREACH(list, l, it)
 183      {
 184         Evas_Coord x, w;
 185         int len;
 186         evas_object_geometry_get(VIEW(it), &x, NULL, &w, NULL);
 187         /* item not visible */
 188         if ((x + w <= ox) || (x >= ox + ow))
 189           continue;
 190
 191         len = _count_letter(it->label);
 192 //        // FIXME: len should be # of ut8f letters. ie count using utf8 string walk, not stringshare len
 193 //        len = eina_stringshare_strlen(it->label);
 194
 195         if (x <= ox + 5)
 196           edje_object_signal_emit(VIEW(it), "elm,state,left_side",
 197                                   "elm");
 198         else if (x + w >= ox + ow - 5)
 199           edje_object_signal_emit(VIEW(it), "elm,state,right_side",
 200                                   "elm");
 201         else
 202           {
 203              if ((wd->len_threshold) && (len > wd->len_threshold))
 204                edje_object_signal_emit(VIEW(it), "elm,state,center_small",
 205                                        "elm");
 206              else
 207                edje_object_signal_emit(VIEW(it), "elm,state,center",
 208                                        "elm");
 209           }
 210
 211         // if len is les that the limit len, skip anyway
 212         if (len <= wd->len_side)
 213           continue;
 214
 215         steps = len - wd->len_side + 1;
 216         mid = x + w / 2;
 217         if (mid <= ox + ow / 2)
 218           diff = (ox + ow / 2) - mid;
 219         else
 220           diff = mid - (ox + ow / 2);
 221
 222         length = len - (int)(diff * steps / (ow / 3));
 223         length = MAX(length, wd->len_side);
 224         // limit string len to "length" ut8f chars
 225         length = _check_letter(it->label, length);
 226         // cut it off at byte mark returned form _check_letter
 227         strncpy(buf, it->label, length);
 228         buf[length] = '\0';
 229         edje_object_part_text_set(VIEW(it), "elm.text", buf);
 230      }
 231
 232    if (wd->check_idler)
 233      ecore_idle_enterer_del(wd->check_idler);
 234    wd->check_idler = NULL;
 235    return EINA_FALSE;
 236 }
 237
 238 static Eina_Bool
 239 _item_del_pre_hook(Elm_Object_Item *it)
 240 {
 241    Elm_Diskselector_Item *item, *item2, *dit;
 242    Eina_List *l;
 243    int i = 0;
 244    Widget_Data *wd;
 245    item = (Elm_Diskselector_Item *)it;
 246    wd = elm_widget_data_get(WIDGET(item));
 247    if (!wd) return EINA_FALSE;
 248
 249    elm_box_unpack(wd->main_box, VIEW(item));
 250
 251    if (wd->round)
 252      wd->r_items = eina_list_remove(wd->r_items, item);
 253
 254    wd->items = eina_list_remove(wd->items, item);
 255
 256    if (wd->selected_item == item)
 257      {
 258         dit = (Elm_Diskselector_Item *) eina_list_nth(wd->items, 0);
 259         if (dit != item)
 260           wd->selected_item = dit;
 261         else
 262           wd->selected_item = eina_list_nth(wd->items, 1);
 263
 264         _selected_item_indicate(wd->selected_item);
 265      }
 266
 267    _item_del(item);
 268    wd->item_count -= 1;
 269
 270    if (wd->round)
 271      {
 272         if (!wd->item_count)
 273           {
 274              evas_object_hide(wd->VIEW(first));
 275              evas_object_hide(wd->VIEW(second));
 276              evas_object_hide(wd->VIEW(last));
 277              evas_object_hide(wd->VIEW(s_last));
 278
 279              EINA_LIST_FOREACH(wd->under_items, l, item2)
 280                evas_object_hide(VIEW(item2));
 281
 282              EINA_LIST_FOREACH(wd->over_items, l, item2)
 283                evas_object_hide(VIEW(item2));
 284           }
 285         else
 286           {
 287              dit = eina_list_nth(wd->items, 0);
 288              if (dit)
 289                {
 290                   eina_stringshare_replace(&wd->first->label, dit->label);
 291                   edje_object_part_text_set(wd->VIEW(first), "elm.text",
 292                                             wd->first->label);
 293                }
 294              dit = eina_list_nth(wd->items, 1);
 295              if (dit)
 296                {
 297                   eina_stringshare_replace(&wd->second->label, dit->label);
 298                   edje_object_part_text_set(wd->VIEW(second), "elm.text",
 299                                             wd->second->label);
 300                }
 301              // if more than 3 itmes should be displayed
 302              for (i = 2; i < CEIL(wd->display_item_num); i++)
 303                {
 304                   dit = eina_list_nth(wd->items, i);
 305                   item2 = eina_list_nth(wd->over_items, i - 2);
 306                   eina_stringshare_replace(&item2->label, dit->label);
 307                   edje_object_part_text_set(VIEW(item2), "elm.text", item2->label);
 308                }
 309
 310              dit = eina_list_nth(wd->items, eina_list_count(wd->items) - 1);
 311              if (dit)
 312                {
 313                   eina_stringshare_replace(&wd->last->label, dit->label);
 314                   edje_object_part_text_set(wd->VIEW(last), "elm.text",
 315                                             wd->last->label);
 316                }
 317              dit = eina_list_nth(wd->items, eina_list_count(wd->items) - 2);
 318              if (dit)
 319                {
 320                   eina_stringshare_replace(&wd->s_last->label, dit->label);
 321                   edje_object_part_text_set(wd->VIEW(s_last), "elm.text",
 322                                             wd->s_last->label);
 323                }
 324              // if more than 3 itmes should be displayed
 325              for (i = 3; i <= CEIL(wd->display_item_num); i++)
 326                {
 327                   dit = eina_list_nth(wd->items, wd->item_count - i);
 328                   item2 = eina_list_nth(wd->under_items, i - 3);
 329                   eina_stringshare_replace(&item2->label, dit->label);
 330                   edje_object_part_text_set(VIEW(item2), "elm.text",
 331                                             item2->label);
 332                }
 333           }
 334      }
 335    wd->check_idler = ecore_idle_enterer_before_add(_check_string, wd);
 336    _sizing_eval(wd->self);
 337
 338    return EINA_TRUE;
 339 }
 340
 341 static Elm_Diskselector_Item *
 342 _item_new(Evas_Object *obj, Evas_Object *icon, const char *label, Evas_Smart_Cb func, const void *data)
 343 {
 344    Elm_Diskselector_Item *it;
 345    const char *style = elm_widget_style_get(obj);
 346
 347    it = elm_widget_item_new(obj, Elm_Diskselector_Item);
 348    if (!it) return NULL;
 349
 350    elm_widget_item_del_pre_hook_set(it, _item_del_pre_hook);
 351    elm_widget_item_text_set_hook_set(it, _item_text_set_hook);
 352    elm_widget_item_text_get_hook_set(it, _item_text_get_hook);
 353    elm_widget_item_content_set_hook_set(it, _item_content_set_hook);
 354    elm_widget_item_content_get_hook_set(it, _item_content_get_hook);
 355
 356    it->label = eina_stringshare_add(label);
 357    it->icon = icon;
 358    it->func = func;
 359    it->base.data = data;
 360    VIEW(it) = edje_object_add(evas_object_evas_get(obj));
 361    _elm_theme_object_set(obj, VIEW(it), "diskselector", "item", style);
 362    evas_object_size_hint_weight_set(VIEW(it), EVAS_HINT_EXPAND,
 363                                     EVAS_HINT_EXPAND);
 364    evas_object_size_hint_align_set(VIEW(it), EVAS_HINT_FILL,
 365                                    EVAS_HINT_FILL);
 366    evas_object_show(VIEW(it));
 367
 368    if (it->label)
 369      {
 370         edje_object_part_text_set(VIEW(it), "elm.text", it->label);
 371         edje_object_signal_callback_add(VIEW(it), "elm,action,click", "", _item_click_cb, it);
 372      }
 373    if (it->icon)
 374      {
 375         evas_object_size_hint_min_set(it->icon, 24, 24);
 376         evas_object_size_hint_max_set(it->icon, 40, 40);
 377         edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
 378         evas_object_show(it->icon);
 379         elm_widget_sub_object_add(obj, it->icon);
 380      }
 381    return it;
 382 }
 383
 384 static void
 385 _theme_data_get(Widget_Data *wd)
 386 {
 387    const char* str;
 388    str = edje_object_data_get(wd->right_blank, "len_threshold");
 389    if (str) wd->len_threshold = MAX(0, atoi(str));
 390    else wd->len_threshold = 0;
 391
 392    if (!wd->display_item_num_by_api)
 393      {
 394         str = edje_object_data_get(wd->right_blank, "display_item_num");
 395         if (str) wd->display_item_num = MAX(DISPLAY_ITEM_NUM_MIN, atoi(str));
 396         else wd->display_item_num = DISPLAY_ITEM_NUM_MIN;
 397      }
 398
 399    str = edje_object_data_get(wd->right_blank, "min_width");
 400    if (str) wd->minw = MAX(-1, atoi(str));
 401    else wd->minw = -1;
 402
 403    str = edje_object_data_get(wd->right_blank, "min_height");
 404    if (str) wd->minh = MAX(-1, atoi(str));
 405    else wd->minh = -1;
 406 }
 407
 408 static void
 409 _del_hook(Evas_Object * obj)
 410 {
 411    Widget_Data *wd = elm_widget_data_get(obj);
 412    if (!wd) return;
 413    free(wd);
 414 }
 415
 416 static void
 417 _del_pre_hook(Evas_Object * obj)
 418 {
 419    Elm_Diskselector_Item *it;
 420    Eina_List *l;
 421
 422    Widget_Data *wd = elm_widget_data_get(obj);
 423    if (!wd) return;
 424
 425    if (wd->left_blank)
 426      evas_object_del(wd->left_blank);
 427    if (wd->right_blank)
 428      evas_object_del(wd->right_blank);
 429    if (wd->last)
 430      {
 431         eina_stringshare_del(wd->last->label);
 432         evas_object_del(wd->VIEW(last));
 433         free(wd->last);
 434      }
 435    if (wd->s_last)
 436      {
 437         eina_stringshare_del(wd->s_last->label);
 438         evas_object_del(wd->VIEW(s_last));
 439         free(wd->s_last);
 440      }
 441    if (wd->second)
 442      {
 443         eina_stringshare_del(wd->second->label);
 444         evas_object_del(wd->VIEW(second));
 445         free(wd->second);
 446      }
 447    if (wd->first)
 448      {
 449         eina_stringshare_del(wd->first->label);
 450         evas_object_del(wd->VIEW(first));
 451         free(wd->first);
 452      }
 453
 454    EINA_LIST_FOREACH(wd->under_items, l, it)
 455      {
 456         if (it)
 457           {
 458              eina_stringshare_del(it->label);
 459              evas_object_del(VIEW(it));
 460              free(it);
 461           }
 462      }
 463
 464    EINA_LIST_FOREACH(wd->over_items, l, it)
 465    {
 466      if (it)
 467         {
 468            eina_stringshare_del(it->label);
 469            evas_object_del(VIEW(it));
 470            free(it);
 471         }
 472    }
 473
 474    EINA_LIST_FREE(wd->items, it)
 475      {
 476         _item_del(it);
 477         elm_widget_item_free(it);
 478      }
 479    eina_list_free(wd->r_items);
 480 }
 481
 482 static void
 483 _sizing_eval(Evas_Object * obj)
 484 {
 485    Widget_Data *wd = elm_widget_data_get(obj);
 486    if (!wd) return;
 487    _diskselector_object_resize(obj, NULL, obj, NULL);
 488 }
 489
 490 static void
 491 _theme_hook(Evas_Object * obj)
 492 {
 493    Eina_List *l;
 494    Elm_Diskselector_Item *it;
 495    Widget_Data *wd = elm_widget_data_get(obj);
 496    if (!wd) return;
 497
 498    if (wd->scroller)
 499      elm_smart_scroller_object_theme_set(obj, wd->scroller, "diskselector",
 500                                          "base", elm_widget_style_get(obj));
 501    if (wd->round)
 502      {
 503         EINA_LIST_FOREACH(wd->r_items, l, it)
 504           {
 505              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 506                                    elm_widget_style_get(obj));
 507              edje_object_part_text_set(VIEW(it), "elm.text", it->label);
 508           }
 509      }
 510    else
 511      {
 512         EINA_LIST_FOREACH(wd->items, l, it)
 513           {
 514              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 515                                    elm_widget_style_get(obj));
 516              edje_object_part_text_set(VIEW(it), "elm.text", it->label);
 517           }
 518      }
 519    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
 520                                    elm_widget_style_get(obj));
 521    _theme_data_get(wd);
 522    _sizing_eval(obj);
 523 }
 524
 525 static void
 526 _sub_del(void *data __UNUSED__, Evas_Object * obj, void *event_info)
 527 {
 528    Widget_Data *wd = elm_widget_data_get(obj);
 529    Evas_Object *sub = event_info;
 530    Elm_Diskselector_Item *it;
 531    const Eina_List *l;
 532
 533    if (!wd) return;
 534    if (!sub) abort();
 535    if (sub == wd->scroller)
 536      wd->scroller = NULL;
 537    else
 538      {
 539         EINA_LIST_FOREACH(wd->items, l, it)
 540           {
 541              if (sub == it->icon)
 542                {
 543                   it->icon = NULL;
 544                   _sizing_eval(obj);
 545                   break;
 546                }
 547           }
 548      }
 549 }
 550
 551 static void
 552 _select_item(Elm_Diskselector_Item *it)
 553 {
 554    if (!it) return;
 555    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 556    wd->selected_item = it;
 557    _selected_item_indicate(wd->selected_item);
 558    if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
 559    evas_object_smart_callback_call(WIDGET(it), SIG_SELECTED, it);
 560 }
 561
 562 static void
 563 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 564 {
 565    Widget_Data *wd = elm_widget_data_get(obj);
 566    if (!wd)
 567      return;
 568
 569    if (elm_widget_focus_get(obj))
 570      {
 571         edje_object_signal_emit(wd->self, "elm,action,focus", "elm");
 572         evas_object_focus_set(wd->self, EINA_TRUE);
 573      }
 574    else
 575      {
 576         edje_object_signal_emit(wd->self, "elm,action,unfocus", "elm");
 577         evas_object_focus_set(wd->self, EINA_FALSE);
 578      }
 579 }
 580
 581 static Eina_Bool
 582 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
 583 {
 584    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
 585    Evas_Event_Key_Down *ev = event_info;
 586    Widget_Data *wd = elm_widget_data_get(obj);
 587    if (!wd) return EINA_FALSE;
 588    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
 589    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
 590
 591    Elm_Diskselector_Item *it = NULL;
 592    Eina_List *l;
 593
 594    if (!wd->selected_item) {
 595         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 596         return EINA_TRUE;
 597    }
 598
 599    if ((!strcmp(ev->keyname, "Left")) ||
 600        ((!strcmp(ev->keyname, "KP_Left")) && (!ev->string)) ||
 601        (!strcmp(ev->keyname, "Up"))  ||
 602        ((!strcmp(ev->keyname, "KP_Up")) && (!ev->string)))
 603      {
 604         l = wd->selected_item->node->prev;
 605         if ((!l) && (wd->round))
 606           l = eina_list_last(wd->items);
 607      }
 608    else if ((!strcmp(ev->keyname, "Right")) ||
 609             ((!strcmp(ev->keyname, "KP_Right")) && (!ev->string)) ||
 610             (!strcmp(ev->keyname, "Down")) ||
 611             ((!strcmp(ev->keyname, "KP_Down")) && (!ev->string)))
 612      {
 613         l = wd->selected_item->node->next;
 614         if ((!l) && (wd->round))
 615           l = wd->items;
 616      }
 617    else if ((!strcmp(ev->keyname, "Home")) ||
 618             ((!strcmp(ev->keyname, "KP_Home")) && (!ev->string)))
 619      l = wd->items;
 620    else if ((!strcmp(ev->keyname, "End")) ||
 621             ((!strcmp(ev->keyname, "KP_End")) && (!ev->string)))
 622      l = eina_list_last(wd->items);
 623    else return EINA_FALSE;
 624
 625    if (l)
 626      it = eina_list_data_get(l);
 627
 628    if (it)
 629      {
 630         wd->selected_item = it;
 631         if (!wd->idler)
 632           wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
 633      }
 634
 635    ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 636    return EINA_TRUE;
 637 }
 638
 639 static void
 640 _selected_item_indicate(Elm_Diskselector_Item *it)
 641 {
 642    Elm_Diskselector_Item *item;
 643    Eina_List *l;
 644    Widget_Data *wd;
 645    wd = elm_widget_data_get(WIDGET(it));
 646
 647    if (!wd) return;
 648
 649    EINA_LIST_FOREACH(wd->r_items, l, item)
 650      {
 651         if (!strcmp(item->label, it->label)) edje_object_signal_emit(VIEW(item), "elm,state,selected", "elm");
 652         else
 653            edje_object_signal_emit(VIEW(item), "elm,state,default", "elm");
 654      }
 655 }
 656
 657 static void
 658 _item_click_cb(void *data, Evas_Object *obj __UNUSED__,
 659                const char *emission __UNUSED__, const char *source __UNUSED__)
 660 {
 661    Elm_Diskselector_Item *it = data;
 662
 663    if (!it) return;
 664
 665    Widget_Data *wd;
 666    wd = elm_widget_data_get(WIDGET(it));
 667
 668    if (!wd) return;
 669
 670    if (wd->selected_item != it)
 671      {
 672         wd->selected_item = it;
 673         _selected_item_indicate(wd->selected_item);
 674      }
 675
 676    if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
 677 }
 678
 679 static void
 680 _scroller_move_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 681 {
 682    Evas_Coord x, y, w, h, bw;
 683    Widget_Data *wd = data;
 684
 685    _check_string(wd);
 686    elm_smart_scroller_child_pos_get(obj, &x, &y);
 687    elm_smart_scroller_child_viewport_size_get(obj, &w, &h);
 688    if (wd->round)
 689      {
 690         evas_object_geometry_get(wd->main_box, NULL, NULL, &bw, NULL);
 691         if (x > ((w / wd->display_item_num) * (wd->item_count + (wd->display_item_num % 2))))
 692            elm_smart_scroller_child_region_show(wd->scroller,
 693                                                x - ((w / wd->display_item_num) * wd->item_count),
 694                                                y, w, h);
 695         else if (x < 0)
 696            elm_smart_scroller_child_region_show(wd->scroller,
 697                                                x + ((w / wd->display_item_num) * wd->item_count),
 698                                                y, w, h);
 699      }
 700 }
 701
 702 static void
 703 _scroller_stop_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 704 {
 705    Elm_Diskselector_Item *it;
 706    Widget_Data *wd = elm_widget_data_get(data);
 707    Evas_Coord x, w, ow;
 708    Eina_List *l, *list;
 709
 710    if (wd->idler) return;
 711
 712    if (!wd->round)
 713      list = wd->items;
 714    else
 715      list = wd->r_items;
 716
 717    evas_object_geometry_get(wd->scroller, NULL, NULL, &ow, NULL);
 718    EINA_LIST_FOREACH(list, l, it)
 719      {
 720         evas_object_geometry_get(VIEW(it), &x, NULL, &w, NULL);
 721         if (abs((int)(ow / 2 - (int)(x + w / 2))) < 10) break;
 722      }
 723
 724    if (!it) return;
 725    _select_item(it);
 726    evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_STOP, it);
 727 }
 728
 729 static void
 730 _scroller_start_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 731 {
 732    evas_object_smart_callback_call(data, SIG_SCROLL_ANIM_START,
 733                                    elm_diskselector_selected_item_get(data));
 734 }
 735
 736 static void
 737 _drag_start_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 738 {
 739    evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_START,
 740                                    elm_diskselector_selected_item_get(data));
 741 }
 742
 743 static void
 744 _drag_stop_cb(void *data, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 745 {
 746    evas_object_smart_callback_call(data, SIG_SCROLL_DRAG_STOP,
 747                                    elm_diskselector_selected_item_get(data));
 748 }
 749
 750 static Eina_Bool
 751 _move_scroller(void *data)
 752 {
 753    Evas_Object *obj = data;
 754    Widget_Data *wd;
 755    Eina_List *list, *l;
 756    Elm_Diskselector_Item *dit;
 757    Evas_Coord y, w, h;
 758    int i;
 759
 760    wd = elm_widget_data_get(obj);
 761    if (!wd) return EINA_FALSE;
 762
 763    if (!wd->round)
 764      {
 765         i = 0;
 766         list = wd->items;
 767      }
 768    else
 769      {
 770         i = 1;
 771         list = wd->r_items;
 772      }
 773
 774    EINA_LIST_FOREACH(list, l, dit)
 775      {
 776         if (wd->selected_item == dit)
 777            break;
 778         i++;
 779      }
 780
 781    if (wd->round) i -= CEIL(wd->display_item_num);
 782
 783    if (!dit)
 784      {
 785         wd->selected_item =
 786            (Elm_Diskselector_Item *) eina_list_nth(wd->items, 0);
 787         return EINA_FALSE;
 788      }
 789
 790    evas_object_geometry_get(wd->scroller, NULL, &y, &w, &h);
 791    elm_smart_scroller_child_region_show(wd->scroller, w / wd->display_item_num * i, y, w, h);
 792    _select_item(dit);
 793    if (wd->idler)
 794      {
 795         ecore_idle_enterer_del(wd->idler);
 796         wd->idler = NULL;
 797      }
 798    wd->init = EINA_TRUE;
 799    _check_string(wd);
 800
 801    return EINA_TRUE;
 802 }
 803
 804 static void
 805 _round_item_del(Widget_Data *wd, Elm_Diskselector_Item *it)
 806 {
 807    if (!it) return;
 808    elm_box_unpack(wd->main_box, VIEW(it));
 809    wd->r_items = eina_list_remove(wd->r_items, it);
 810    eina_stringshare_del(it->label);
 811    elm_widget_item_free(it);
 812 }
 813
 814 static void
 815 _round_items_del(Widget_Data *wd)
 816 {
 817    Eina_List *l;
 818    Elm_Diskselector_Item * it;
 819
 820    _round_item_del(wd, wd->last);
 821    wd->last = NULL;
 822    _round_item_del(wd, wd->s_last);
 823    wd->s_last = NULL;
 824    _round_item_del(wd, wd->second);
 825    wd->second = NULL;
 826    _round_item_del(wd, wd->first);
 827    wd->first = NULL;
 828
 829    EINA_LIST_FOREACH(wd->under_items, l, it)
 830      {
 831         _round_item_del(wd, it);
 832      }
 833    wd->under_items = eina_list_free(wd->under_items);
 834
 835    EINA_LIST_FOREACH(wd->over_items, l, it)
 836      {
 837         _round_item_del(wd, it);
 838      }
 839    wd->over_items = eina_list_free(wd->over_items);
 840 }
 841
 842 static void
 843 _round_items_add(Widget_Data *wd)
 844 {
 845    Elm_Diskselector_Item *dit;
 846    Elm_Diskselector_Item *it;
 847    Elm_Diskselector_Item *temp_it;
 848    int i = 0;
 849    dit = it = eina_list_nth(wd->items, 0);
 850    if (!dit) return;
 851
 852    if (!wd->first)
 853      {
 854         wd->first = _item_new(WIDGET(it), it->icon, it->label, it->func,
 855                               it->base.data);
 856         wd->first->node = it->node;
 857         wd->r_items = eina_list_append(wd->r_items, wd->first);
 858      }
 859
 860    it = eina_list_nth(wd->items, 1);
 861    if (!it)
 862      it = dit;
 863    if (!wd->second)
 864      {
 865         wd->second = _item_new(WIDGET(it), it->icon, it->label, it->func,
 866                                it->base.data);
 867         wd->second->node = it->node;
 868         wd->r_items = eina_list_append(wd->r_items, wd->second);
 869      }
 870
 871    // if more than 3 itmes should be displayed
 872    for (i = 2; i < CEIL(wd->display_item_num); i++)
 873      {
 874         it = eina_list_nth(wd->items, i);
 875         if (!it) it = dit;
 876         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 877         wd->over_items = eina_list_append(wd->over_items, temp_it);
 878         wd->r_items = eina_list_append(wd->r_items, temp_it);
 879      }
 880
 881    it = eina_list_nth(wd->items, wd->item_count - 1);
 882    if (!it)
 883      it = dit;
 884    if (!wd->last)
 885      {
 886         wd->last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 887                              it->base.data);
 888         wd->last->node = it->node;
 889         wd->r_items = eina_list_prepend(wd->r_items, wd->last);
 890      }
 891
 892    it = eina_list_nth(wd->items, wd->item_count - 2);
 893    if (!it)
 894      it = dit;
 895    if (!wd->s_last)
 896      {
 897         wd->s_last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 898                                it->base.data);
 899         wd->s_last->node = it->node;
 900         wd->r_items = eina_list_prepend(wd->r_items, wd->s_last);
 901      }
 902
 903    // if more than 3 itmes should be displayed
 904    for (i = 3; i <= CEIL(wd->display_item_num); i++)
 905      {
 906         it = eina_list_nth(wd->items, wd->item_count - i);
 907         if (!it) it = dit;
 908         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 909         wd->under_items = eina_list_append(wd->under_items, temp_it);
 910         wd->r_items = eina_list_prepend(wd->r_items, temp_it);
 911      }
 912 }
 913
 914 static void
 915 _item_icon_set(Elm_Diskselector_Item *it, Evas_Object *icon)
 916 {
 917    if (it->icon == icon) return;
 918    if (it->icon) evas_object_del(it->icon);
 919    it->icon = icon;
 920    if (VIEW(it))
 921      {
 922         evas_object_size_hint_min_set(it->icon, 24, 24);
 923         evas_object_size_hint_max_set(it->icon, 40, 40);
 924         edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
 925         evas_object_show(it->icon);
 926         elm_widget_sub_object_add(WIDGET(it), it->icon);
 927      }
 928 }
 929
 930 static void
 931 _check_identical_item(Elm_Diskselector_Item *it, Evas_Object *icon)
 932 {
 933    Widget_Data *wd;
 934    Elm_Diskselector_Item *dit;
 935    Eina_List *l;
 936    int idx = 0;
 937    int ic = 0;
 938    int ac = 0;
 939
 940    wd = elm_widget_data_get(WIDGET(it));
 941    if (!wd) return;
 942
 943    if (wd->round)
 944      {
 945         // Get index from indentical item from round items
 946         EINA_LIST_FOREACH(wd->r_items, l, dit)
 947           {
 948              if (it == dit) break;
 949              idx++;
 950           }
 951
 952         // No item to match
 953         ic = eina_list_count(wd->r_items);
 954         if (idx >= ic) return;
 955         dit = NULL;
 956
 957         // Number of added items: CEIL(wd->display_item_num)
 958         ac = CEIL(wd->display_item_num);
 959
 960         if (((idx >= 0) && (idx < ac)) ||
 961             ((idx >= ac) && (idx < (2 * ac))))
 962           {
 963               // Selected item: under, low region
 964              dit = eina_list_nth(wd->r_items,
 965                                  idx + ic - (2 * ac));
 966           }
 967         else if (((idx >= (ic - ac)) && (idx < ic)) ||
 968                  ((idx >= (ic - (2 * ac))) && (idx < ic - ac)))
 969           {
 970               // Selected item: over, high region
 971               dit = eina_list_nth(wd->r_items,
 972                                   idx - ic + (2 * ac));
 973           }
 974
 975         if (dit) _item_icon_set(dit, icon);
 976         _sizing_eval(wd->self);
 977      }
 978 }
 979
 980 static void
 981 _item_text_set_hook(Elm_Object_Item *it, const char *part, const char *label)
 982 {
 983    Elm_Diskselector_Item *item;
 984    if (part && strcmp(part, "default")) return;
 985    item = (Elm_Diskselector_Item *)it;
 986    eina_stringshare_replace(&item->label, label);
 987    edje_object_part_text_set(VIEW(item), "elm.text", item->label);
 988 }
 989
 990 static const char *
 991 _item_text_get_hook(const Elm_Object_Item *it, const char *part)
 992 {
 993    if (part && strcmp(part, "default")) return NULL;
 994    return ((Elm_Diskselector_Item *)it)->label;
 995 }
 996
 997 static void
 998 _item_content_set_hook(Elm_Object_Item *it,
 999                        const char *part,
1000                        Evas_Object *content)
1001 {
1002    if (part && strcmp(part, "icon")) return;
1003    _item_icon_set((Elm_Diskselector_Item *)it, content);
1004    _check_identical_item((Elm_Diskselector_Item *)it, content);
1005 }
1006
1007 static Evas_Object *
1008 _item_content_get_hook(const Elm_Object_Item *it, const char *part)
1009 {
1010    if (part && strcmp(part, "icon")) return NULL;
1011    return ((Elm_Diskselector_Item *)it)->icon;
1012 }
1013
1014
1015 EAPI Evas_Object *
1016 elm_diskselector_add(Evas_Object *parent)
1017 {
1018    Evas *e;
1019    Evas_Object *obj;
1020    Widget_Data *wd;
1021
1022    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
1023
1024    ELM_SET_WIDTYPE(widtype, "diskselector");
1025    elm_widget_type_set(obj, "diskselector");
1026    elm_widget_sub_object_add(parent, obj);
1027    elm_widget_data_set(obj, wd);
1028    elm_widget_del_hook_set(obj, _del_hook);
1029    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
1030    elm_widget_theme_hook_set(obj, _theme_hook);
1031    elm_widget_can_focus_set(obj, EINA_TRUE);
1032    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
1033    elm_widget_event_hook_set(obj, _event_hook);
1034
1035    wd->self = obj;
1036    wd->item_count = 0;
1037    wd->round = EINA_FALSE;
1038    wd->init = EINA_FALSE;
1039    wd->len_side = 3;
1040    wd->display_item_num_by_api = EINA_FALSE;
1041
1042    wd->scroller = elm_smart_scroller_add(e);
1043    elm_smart_scroller_widget_set(wd->scroller, obj);
1044    _theme_hook(obj);
1045    elm_widget_resize_object_set(obj, wd->scroller);
1046    elm_smart_scroller_policy_set(wd->scroller, ELM_SMART_SCROLLER_POLICY_OFF,
1047                                  ELM_SMART_SCROLLER_POLICY_OFF);
1048    elm_smart_scroller_bounce_allow_set(wd->scroller, EINA_TRUE, EINA_FALSE);
1049    evas_object_smart_callback_add(wd->scroller, "scroll", _scroller_move_cb,
1050                                   wd);
1051    evas_object_smart_callback_add(wd->scroller, "animate,stop",
1052                                   _scroller_stop_cb, obj);
1053    evas_object_smart_callback_add(wd->scroller, "animate,start",
1054                                   _scroller_start_cb, obj);
1055    evas_object_smart_callback_add(wd->scroller, "drag,stop",
1056                                   _drag_stop_cb, obj);
1057    evas_object_smart_callback_add(wd->scroller, "drag,start",
1058                                   _drag_start_cb, obj);
1059
1060    _elm_theme_object_set(obj, wd->scroller, "diskselector", "base",
1061                          "default");
1062    evas_object_event_callback_add(wd->scroller, EVAS_CALLBACK_RESIZE,
1063                                   _diskselector_object_resize, obj);
1064
1065    wd->main_box = elm_box_add(parent);
1066    elm_box_horizontal_set(wd->main_box, EINA_TRUE);
1067    elm_box_homogeneous_set(wd->main_box, EINA_TRUE);
1068    evas_object_size_hint_weight_set(wd->main_box, EVAS_HINT_EXPAND,
1069                                     EVAS_HINT_EXPAND);
1070    evas_object_size_hint_align_set(wd->main_box, EVAS_HINT_FILL,
1071                                    EVAS_HINT_FILL);
1072    _elm_theme_object_set(obj, wd->main_box, "diskselector", "base",
1073                          "default");
1074    elm_widget_sub_object_add(obj, wd->main_box);
1075
1076    elm_smart_scroller_child_set(wd->scroller, wd->main_box);
1077
1078    wd->left_blank = edje_object_add(evas_object_evas_get(obj));
1079    _elm_theme_object_set(obj, wd->left_blank, "diskselector", "item",
1080                          "default");
1081    evas_object_size_hint_weight_set(wd->left_blank, EVAS_HINT_EXPAND,
1082                                     EVAS_HINT_EXPAND);
1083    evas_object_size_hint_align_set(wd->left_blank, EVAS_HINT_FILL,
1084                                    EVAS_HINT_FILL);
1085    elm_box_pack_end(wd->main_box, wd->left_blank);
1086    evas_object_show(wd->left_blank);
1087
1088    wd->right_blank = edje_object_add(evas_object_evas_get(obj));
1089    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
1090                          "default");
1091    evas_object_size_hint_weight_set(wd->right_blank, EVAS_HINT_EXPAND,
1092                                     EVAS_HINT_EXPAND);
1093    evas_object_size_hint_align_set(wd->right_blank, EVAS_HINT_FILL,
1094                                    EVAS_HINT_FILL);
1095    elm_box_pack_end(wd->main_box, wd->right_blank);
1096    evas_object_show(wd->right_blank);
1097
1098    _theme_data_get(wd);
1099
1100    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
1101    evas_object_smart_callbacks_descriptions_set(obj, _signals);
1102    _sizing_eval(obj);
1103    return obj;
1104 }
1105
1106 EAPI Eina_Bool
1107 elm_diskselector_round_enabled_get(const Evas_Object *obj)
1108 {
1109    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
1110    Widget_Data *wd = elm_widget_data_get(obj);
1111    if (!wd) return EINA_FALSE;
1112    return wd->round;
1113 }
1114
1115 EAPI void
1116 elm_diskselector_round_enabled_set(Evas_Object * obj, Eina_Bool enabled)
1117 {
1118    Eina_List *elist;
1119    Elm_Diskselector_Item *it;
1120
1121    ELM_CHECK_WIDTYPE(obj, widtype);
1122    Widget_Data *wd = elm_widget_data_get(obj);
1123    if (!wd) return;
1124
1125    if (wd->round == enabled)
1126      return;
1127
1128    wd->round = !!enabled;
1129    if (enabled)
1130      {
1131         wd->r_items = eina_list_clone(wd->items);
1132         elm_box_unpack(wd->main_box, wd->left_blank);
1133         evas_object_hide(wd->left_blank);
1134         elm_box_unpack(wd->main_box, wd->right_blank);
1135         evas_object_hide(wd->right_blank);
1136         if (!wd->items)
1137           return;
1138
1139         _round_items_add(wd);
1140
1141         if (wd->last)
1142           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1143         if (wd->s_last)
1144           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1145
1146         // if more than 3 items should be displayed
1147         EINA_LIST_FOREACH(wd->under_items, elist, it)
1148            elm_box_pack_start(wd->main_box, VIEW(it));
1149
1150         if (wd->first)
1151           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1152         if (wd->second)
1153           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1154
1155         // if more than 3 items should be displayed
1156         EINA_LIST_FOREACH(wd->over_items, elist, it)
1157            elm_box_pack_end(wd->main_box, VIEW(it));
1158      }
1159    else
1160      {
1161         _round_items_del(wd);
1162         elm_box_pack_start(wd->main_box, wd->left_blank);
1163         elm_box_pack_end(wd->main_box, wd->right_blank);
1164         eina_list_free(wd->r_items);
1165         wd->r_items = NULL;
1166      }
1167
1168    _selected_item_indicate(wd->selected_item);
1169    _sizing_eval(obj);
1170 }
1171
1172 EAPI int
1173 elm_diskselector_side_text_max_length_get(const Evas_Object *obj)
1174 {
1175    ELM_CHECK_WIDTYPE(obj, widtype) 0;
1176    Widget_Data *wd = elm_widget_data_get(obj);
1177    if (!wd) return 0;
1178    return wd->len_side;
1179 }
1180
1181 EAPI void
1182 elm_diskselector_side_text_max_length_set(Evas_Object *obj, int len)
1183 {
1184    ELM_CHECK_WIDTYPE(obj, widtype);
1185    Widget_Data *wd = elm_widget_data_get(obj);
1186    if (!wd) return;
1187    wd->len_side = len;
1188 }
1189
1190 EAPI void
1191 elm_diskselector_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce)
1192 {
1193    ELM_CHECK_WIDTYPE(obj, widtype);
1194    Widget_Data *wd = elm_widget_data_get(obj);
1195    if (!wd) return;
1196    if (wd->scroller)
1197      elm_smart_scroller_bounce_allow_set(wd->scroller, h_bounce, v_bounce);
1198 }
1199
1200 EAPI void
1201 elm_diskselector_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce)
1202 {
1203    ELM_CHECK_WIDTYPE(obj, widtype);
1204    Widget_Data *wd = elm_widget_data_get(obj);
1205    if (!wd) return;
1206    elm_smart_scroller_bounce_allow_get(wd->scroller, h_bounce, v_bounce);
1207 }
1208
1209 EAPI void
1210 elm_diskselector_scroller_policy_get(const Evas_Object *obj, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v)
1211 {
1212    ELM_CHECK_WIDTYPE(obj, widtype);
1213    Elm_Smart_Scroller_Policy s_policy_h, s_policy_v;
1214    Widget_Data *wd = elm_widget_data_get(obj);
1215    if ((!wd) || (!wd->scroller)) return;
1216    elm_smart_scroller_policy_get(wd->scroller, &s_policy_h, &s_policy_v);
1217    *policy_h = (Elm_Scroller_Policy) s_policy_h;
1218    *policy_v = (Elm_Scroller_Policy) s_policy_v;
1219 }
1220
1221 EAPI void
1222 elm_diskselector_scroller_policy_set(Evas_Object *obj, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v)
1223 {
1224    ELM_CHECK_WIDTYPE(obj, widtype);
1225    Widget_Data *wd = elm_widget_data_get(obj);
1226    if ((!wd) || (!wd->scroller)) return;
1227    if ((policy_h >= ELM_SCROLLER_POLICY_LAST) ||
1228        (policy_v >= ELM_SCROLLER_POLICY_LAST))
1229      return;
1230    elm_smart_scroller_policy_set(wd->scroller, policy_h, policy_v);
1231 }
1232
1233 EAPI void
1234 elm_diskselector_clear(Evas_Object *obj)
1235 {
1236    ELM_CHECK_WIDTYPE(obj, widtype);
1237    Widget_Data *wd = elm_widget_data_get(obj);
1238    Elm_Diskselector_Item *it;
1239
1240    if (!wd) return;
1241    if (!wd->items) return;
1242
1243    wd->selected_item = NULL;
1244    EINA_LIST_FREE(wd->items, it)
1245      {
1246         _item_del(it);
1247         elm_widget_item_free(it);
1248      }
1249    _round_items_del(wd);
1250    _sizing_eval(obj);
1251 }
1252
1253 EAPI const Eina_List *
1254 elm_diskselector_items_get(const Evas_Object *obj)
1255 {
1256    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1257    Widget_Data *wd = elm_widget_data_get(obj);
1258    if (!wd) return NULL;
1259    return wd->items;
1260 }
1261
1262 EAPI Elm_Object_Item *
1263 elm_diskselector_item_append(Evas_Object *obj, const char *label, Evas_Object *icon, Evas_Smart_Cb func, const void *data)
1264 {
1265    Elm_Diskselector_Item *it;
1266    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1267    Widget_Data *wd = elm_widget_data_get(obj);
1268    if (!wd) return NULL;
1269
1270    it = _item_new(obj, icon, label, func, data);
1271    wd->items = eina_list_append(wd->items, it);
1272    it->node = eina_list_last(wd->items);
1273    wd->item_count++;
1274    if (wd->round)
1275      {
1276         _round_items_del(wd);
1277         wd->r_items = eina_list_append(wd->r_items, it);
1278         _round_items_add(wd);
1279         if (wd->last)
1280           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1281         if (wd->s_last)
1282           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1283         elm_box_pack_end(wd->main_box, VIEW(it));
1284         if (wd->first)
1285           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1286         if (wd->second)
1287           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1288      }
1289    else
1290      {
1291         elm_box_unpack(wd->main_box, wd->right_blank);
1292         elm_box_pack_end(wd->main_box, VIEW(it));
1293         elm_box_pack_end(wd->main_box, wd->right_blank);
1294      }
1295    if (!wd->selected_item)
1296      wd->selected_item = it;
1297    if (!wd->idler)
1298      wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
1299    _sizing_eval(obj);
1300    return (Elm_Object_Item *)it;
1301 }
1302
1303 EAPI Elm_Object_Item *
1304 elm_diskselector_selected_item_get(const Evas_Object *obj)
1305 {
1306    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1307    Widget_Data *wd = elm_widget_data_get(obj);
1308    if (!wd) return NULL;
1309    return (Elm_Object_Item *) wd->selected_item;
1310 }
1311
1312 EAPI void
1313 elm_diskselector_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
1314 {
1315    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
1316    Widget_Data *wd;
1317    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1318    wd = elm_widget_data_get(WIDGET(item));
1319    if (!wd) return;
1320
1321    if ((wd->selected_item == item) && (selected))
1322      return;
1323
1324    if ((wd->selected_item == item) && (!selected))
1325      wd->selected_item = eina_list_data_get(wd->items);
1326    else
1327      {
1328         wd->selected_item = item;
1329         _selected_item_indicate(wd->selected_item);
1330      }
1331
1332    if (!wd->idler)
1333      wd->idler = ecore_idle_enterer_before_add(_move_scroller, WIDGET(item));
1334 }
1335
1336 EAPI Eina_Bool
1337 elm_diskselector_item_selected_get(const Elm_Object_Item *it)
1338 {
1339    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
1340    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
1341    if (!wd) return EINA_FALSE;
1342    return (wd->selected_item == ((Elm_Diskselector_Item *)it));
1343 }
1344
1345 EAPI Elm_Object_Item *
1346 elm_diskselector_item_prev_get(const Elm_Object_Item *it)
1347 {
1348    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1349    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1350    if (item->node->prev) return item->node->prev->data;
1351    else return NULL;
1352 }
1353
1354 EAPI Elm_Object_Item *
1355 elm_diskselector_item_next_get(const Elm_Object_Item *it)
1356 {
1357    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1358    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1359    if (item->node->next) return item->node->next->data;
1360    else return NULL;
1361 }
1362
1363 EAPI Elm_Object_Item *
1364 elm_diskselector_first_item_get(const Evas_Object *obj)
1365 {
1366    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1367    Widget_Data *wd = elm_widget_data_get(obj);
1368    if (!wd || !wd->items) return NULL;
1369    return eina_list_data_get(wd->items);
1370 }
1371
1372 EAPI Elm_Object_Item *
1373 elm_diskselector_last_item_get(const Evas_Object *obj)
1374 {
1375    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1376    Widget_Data *wd = elm_widget_data_get(obj);
1377    if (!wd || !wd->items) return NULL;
1378    return eina_list_data_get(eina_list_last(wd->items));
1379 }
1380
1381 EAPI void
1382 elm_diskselector_display_item_num_set(Evas_Object *obj, int num)
1383 {
1384    ELM_CHECK_WIDTYPE(obj, widtype);
1385    Widget_Data *wd = elm_widget_data_get(obj);
1386    if (!wd) return;
1387    if (num < DISPLAY_ITEM_NUM_MIN) num = DISPLAY_ITEM_NUM_MIN;
1388    wd->display_item_num = num;
1389    wd->display_item_num_by_api = EINA_TRUE;
1390 }
1391
1392 EAPI int
1393 elm_diskselector_display_item_num_get(const Evas_Object *item)
1394 {
1395    ELM_CHECK_WIDTYPE(item, widtype) (-1);
1396    Widget_Data *wd = elm_widget_data_get(item);
1397    if (!wd) return -1;
1398    return wd->display_item_num;
1399 }