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    Evas_Object *parent;
 389    str = edje_object_data_get(wd->right_blank, "len_threshold");
 390    if (str) wd->len_threshold = MAX(0, atoi(str));
 391    else wd->len_threshold = 0;
 392
 393    if (!wd->display_item_num_by_api)
 394      {
 395         str = edje_object_data_get(wd->right_blank, "display_item_num");
 396         if (str) wd->display_item_num = MAX(DISPLAY_ITEM_NUM_MIN, atoi(str));
 397         else wd->display_item_num = DISPLAY_ITEM_NUM_MIN;
 398      }
 399
 400    str = edje_object_data_get(wd->right_blank, "min_width");
 401    if (str) wd->minw = MAX(-1, atoi(str)) * elm_scale_get();
 402    else
 403      {
 404         parent = elm_widget_parent_widget_get(wd->self);
 405         if (!parent) wd->minw = -1;
 406         else evas_object_geometry_get(parent, NULL, NULL, &wd->minw, NULL);
 407      }
 408
 409    str = edje_object_data_get(wd->right_blank, "min_height");
 410    if (str) wd->minh = MAX(-1, atoi(str)) * elm_scale_get();
 411    else wd->minh = -1;
 412 }
 413
 414 static void
 415 _del_hook(Evas_Object * obj)
 416 {
 417    Widget_Data *wd = elm_widget_data_get(obj);
 418    if (!wd) return;
 419    free(wd);
 420 }
 421
 422 static void
 423 _del_pre_hook(Evas_Object * obj)
 424 {
 425    Elm_Diskselector_Item *it;
 426    Eina_List *l;
 427
 428    Widget_Data *wd = elm_widget_data_get(obj);
 429    if (!wd) return;
 430
 431    if (wd->left_blank)
 432      evas_object_del(wd->left_blank);
 433    if (wd->right_blank)
 434      evas_object_del(wd->right_blank);
 435    if (wd->last)
 436      {
 437         eina_stringshare_del(wd->last->label);
 438         evas_object_del(wd->VIEW(last));
 439         free(wd->last);
 440      }
 441    if (wd->s_last)
 442      {
 443         eina_stringshare_del(wd->s_last->label);
 444         evas_object_del(wd->VIEW(s_last));
 445         free(wd->s_last);
 446      }
 447    if (wd->second)
 448      {
 449         eina_stringshare_del(wd->second->label);
 450         evas_object_del(wd->VIEW(second));
 451         free(wd->second);
 452      }
 453    if (wd->first)
 454      {
 455         eina_stringshare_del(wd->first->label);
 456         evas_object_del(wd->VIEW(first));
 457         free(wd->first);
 458      }
 459
 460    EINA_LIST_FOREACH(wd->under_items, l, it)
 461      {
 462         if (it)
 463           {
 464              eina_stringshare_del(it->label);
 465              evas_object_del(VIEW(it));
 466              free(it);
 467           }
 468      }
 469
 470    EINA_LIST_FOREACH(wd->over_items, l, it)
 471    {
 472      if (it)
 473         {
 474            eina_stringshare_del(it->label);
 475            evas_object_del(VIEW(it));
 476            free(it);
 477         }
 478    }
 479
 480    EINA_LIST_FREE(wd->items, it)
 481      {
 482         _item_del(it);
 483         elm_widget_item_free(it);
 484      }
 485    eina_list_free(wd->r_items);
 486 }
 487
 488 static void
 489 _sizing_eval(Evas_Object * obj)
 490 {
 491    Widget_Data *wd = elm_widget_data_get(obj);
 492    if (!wd) return;
 493    _diskselector_object_resize(obj, NULL, obj, NULL);
 494 }
 495
 496 static void
 497 _theme_hook(Evas_Object * obj)
 498 {
 499    Eina_List *l;
 500    Elm_Diskselector_Item *it;
 501    Widget_Data *wd = elm_widget_data_get(obj);
 502    if (!wd) return;
 503
 504    if (wd->scroller)
 505      elm_smart_scroller_object_theme_set(obj, wd->scroller, "diskselector",
 506                                          "base", elm_widget_style_get(obj));
 507    if (wd->round)
 508      {
 509         EINA_LIST_FOREACH(wd->r_items, l, it)
 510           {
 511              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 512                                    elm_widget_style_get(obj));
 513              edje_object_part_text_set(VIEW(it), "elm.text", it->label);
 514           }
 515      }
 516    else
 517      {
 518         EINA_LIST_FOREACH(wd->items, l, it)
 519           {
 520              _elm_theme_object_set(obj, VIEW(it), "diskselector", "item",
 521                                    elm_widget_style_get(obj));
 522              edje_object_part_text_set(VIEW(it), "elm.text", it->label);
 523           }
 524      }
 525    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
 526                                    elm_widget_style_get(obj));
 527    _theme_data_get(wd);
 528    _sizing_eval(obj);
 529 }
 530
 531 static void
 532 _sub_del(void *data __UNUSED__, Evas_Object * obj, void *event_info)
 533 {
 534    Widget_Data *wd = elm_widget_data_get(obj);
 535    Evas_Object *sub = event_info;
 536    Elm_Diskselector_Item *it;
 537    const Eina_List *l;
 538
 539    if (!wd) return;
 540    if (!sub) abort();
 541    if (sub == wd->scroller)
 542      wd->scroller = NULL;
 543    else
 544      {
 545         EINA_LIST_FOREACH(wd->items, l, it)
 546           {
 547              if (sub == it->icon)
 548                {
 549                   it->icon = NULL;
 550                   _sizing_eval(obj);
 551                   break;
 552                }
 553           }
 554      }
 555 }
 556
 557 static void
 558 _select_item(Elm_Diskselector_Item *it)
 559 {
 560    if (!it) return;
 561    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
 562    wd->selected_item = it;
 563    _selected_item_indicate(wd->selected_item);
 564    if (it->func) it->func((void *)it->base.data, WIDGET(it), it);
 565    evas_object_smart_callback_call(WIDGET(it), SIG_SELECTED, it);
 566 }
 567
 568 static void
 569 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 570 {
 571    Widget_Data *wd = elm_widget_data_get(obj);
 572    if (!wd)
 573      return;
 574
 575    if (elm_widget_focus_get(obj))
 576      {
 577         edje_object_signal_emit(wd->self, "elm,action,focus", "elm");
 578         evas_object_focus_set(wd->self, EINA_TRUE);
 579      }
 580    else
 581      {
 582         edje_object_signal_emit(wd->self, "elm,action,unfocus", "elm");
 583         evas_object_focus_set(wd->self, EINA_FALSE);
 584      }
 585 }
 586
 587 static Eina_Bool
 588 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
 589 {
 590    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
 591    Evas_Event_Key_Down *ev = event_info;
 592    Widget_Data *wd = elm_widget_data_get(obj);
 593    if (!wd) return EINA_FALSE;
 594    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
 595    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
 596
 597    Elm_Diskselector_Item *it = NULL;
 598    Eina_List *l;
 599
 600    if (!wd->selected_item) {
 601         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 602         return EINA_TRUE;
 603    }
 604
 605    if ((!strcmp(ev->keyname, "Left")) || (!strcmp(ev->keyname, "KP_Left")) ||
 606        (!strcmp(ev->keyname, "Up"))  || (!strcmp(ev->keyname, "KP_Up")))
 607      {
 608         l = wd->selected_item->node->prev;
 609         if ((!l) && (wd->round))
 610           l = eina_list_last(wd->items);
 611      }
 612    else if ((!strcmp(ev->keyname, "Right")) || (!strcmp(ev->keyname, "KP_Right")) ||
 613             (!strcmp(ev->keyname, "Down")) || (!strcmp(ev->keyname, "KP_Down")))
 614      {
 615         l = wd->selected_item->node->next;
 616         if ((!l) && (wd->round))
 617           l = wd->items;
 618      }
 619    else if ((!strcmp(ev->keyname, "Home")) || (!strcmp(ev->keyname, "KP_Home")))
 620      l = wd->items;
 621    else if ((!strcmp(ev->keyname, "End")) || (!strcmp(ev->keyname, "KP_End")))
 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    //move scroller in two steps for getting smooth launching effect.
 792    if (i > 2)
 793      elm_smart_scroller_child_region_show(wd->scroller, w / wd->display_item_num * (i-2), y, w, h);
 794    elm_smart_scroller_region_bring_in(wd->scroller, w / wd->display_item_num * i, y, w, h);
 795
 796    _select_item(dit);
 797    if (wd->idler)
 798      {
 799         ecore_idle_enterer_del(wd->idler);
 800         wd->idler = NULL;
 801      }
 802    wd->init = EINA_TRUE;
 803    _check_string(wd);
 804
 805    return EINA_TRUE;
 806 }
 807
 808 static void
 809 _round_item_del(Widget_Data *wd, Elm_Diskselector_Item *it)
 810 {
 811    if (!it) return;
 812    elm_box_unpack(wd->main_box, VIEW(it));
 813    wd->r_items = eina_list_remove(wd->r_items, it);
 814    eina_stringshare_del(it->label);
 815    elm_widget_item_free(it);
 816 }
 817
 818 static void
 819 _round_items_del(Widget_Data *wd)
 820 {
 821    Eina_List *l;
 822    Elm_Diskselector_Item * it;
 823
 824    _round_item_del(wd, wd->last);
 825    wd->last = NULL;
 826    _round_item_del(wd, wd->s_last);
 827    wd->s_last = NULL;
 828    _round_item_del(wd, wd->second);
 829    wd->second = NULL;
 830    _round_item_del(wd, wd->first);
 831    wd->first = NULL;
 832
 833    EINA_LIST_FOREACH(wd->under_items, l, it)
 834      {
 835         _round_item_del(wd, it);
 836      }
 837    wd->under_items = eina_list_free(wd->under_items);
 838
 839    EINA_LIST_FOREACH(wd->over_items, l, it)
 840      {
 841         _round_item_del(wd, it);
 842      }
 843    wd->over_items = eina_list_free(wd->over_items);
 844 }
 845
 846 static void
 847 _round_items_add(Widget_Data *wd)
 848 {
 849    Elm_Diskselector_Item *dit;
 850    Elm_Diskselector_Item *it;
 851    Elm_Diskselector_Item *temp_it;
 852    int i = 0;
 853    dit = it = eina_list_nth(wd->items, 0);
 854    if (!dit) return;
 855
 856    if (!wd->first)
 857      {
 858         wd->first = _item_new(WIDGET(it), it->icon, it->label, it->func,
 859                               it->base.data);
 860         wd->first->node = it->node;
 861         wd->r_items = eina_list_append(wd->r_items, wd->first);
 862      }
 863
 864    it = eina_list_nth(wd->items, 1);
 865    if (!it)
 866      it = dit;
 867    if (!wd->second)
 868      {
 869         wd->second = _item_new(WIDGET(it), it->icon, it->label, it->func,
 870                                it->base.data);
 871         wd->second->node = it->node;
 872         wd->r_items = eina_list_append(wd->r_items, wd->second);
 873      }
 874
 875    // if more than 3 itmes should be displayed
 876    for (i = 2; i < CEIL(wd->display_item_num); i++)
 877      {
 878         it = eina_list_nth(wd->items, i);
 879         if (!it) it = dit;
 880         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 881         wd->over_items = eina_list_append(wd->over_items, temp_it);
 882         wd->r_items = eina_list_append(wd->r_items, temp_it);
 883      }
 884
 885    it = eina_list_nth(wd->items, wd->item_count - 1);
 886    if (!it)
 887      it = dit;
 888    if (!wd->last)
 889      {
 890         wd->last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 891                              it->base.data);
 892         wd->last->node = it->node;
 893         wd->r_items = eina_list_prepend(wd->r_items, wd->last);
 894      }
 895
 896    it = eina_list_nth(wd->items, wd->item_count - 2);
 897    if (!it)
 898      it = dit;
 899    if (!wd->s_last)
 900      {
 901         wd->s_last = _item_new(WIDGET(it), it->icon, it->label, it->func,
 902                                it->base.data);
 903         wd->s_last->node = it->node;
 904         wd->r_items = eina_list_prepend(wd->r_items, wd->s_last);
 905      }
 906
 907    // if more than 3 itmes should be displayed
 908    for (i = 3; i <= CEIL(wd->display_item_num); i++)
 909      {
 910         it = eina_list_nth(wd->items, wd->item_count - i);
 911         if (!it) it = dit;
 912         temp_it = _item_new(WIDGET(it), it->icon, it->label, it->func, it->base.data);
 913         wd->under_items = eina_list_append(wd->under_items, temp_it);
 914         wd->r_items = eina_list_prepend(wd->r_items, temp_it);
 915      }
 916 }
 917
 918 static void
 919 _item_icon_set(Elm_Diskselector_Item *it, Evas_Object *icon)
 920 {
 921    if (it->icon == icon) return;
 922    if (it->icon) evas_object_del(it->icon);
 923    it->icon = icon;
 924    if (VIEW(it))
 925      {
 926         evas_object_size_hint_min_set(it->icon, 24, 24);
 927         evas_object_size_hint_max_set(it->icon, 40, 40);
 928         edje_object_part_swallow(VIEW(it), "elm.swallow.icon", it->icon);
 929         evas_object_show(it->icon);
 930         elm_widget_sub_object_add(WIDGET(it), it->icon);
 931      }
 932 }
 933
 934 static void
 935 _check_identical_item(Elm_Diskselector_Item *it, Evas_Object *icon)
 936 {
 937    Widget_Data *wd;
 938    Elm_Diskselector_Item *dit;
 939    Eina_List *l;
 940    int idx = 0;
 941    int ic = 0;
 942    int ac = 0;
 943
 944    wd = elm_widget_data_get(WIDGET(it));
 945    if (!wd) return;
 946
 947    if (wd->round)
 948      {
 949         // Get index from indentical item from round items
 950         EINA_LIST_FOREACH(wd->r_items, l, dit)
 951           {
 952              if (it == dit) break;
 953              idx++;
 954           }
 955
 956         // No item to match
 957         ic = eina_list_count(wd->r_items);
 958         if (idx >= ic) return;
 959         dit = NULL;
 960
 961         // Number of added items: CEIL(wd->display_item_num)
 962         ac = CEIL(wd->display_item_num);
 963
 964         if (((idx >= 0) && (idx < ac)) ||
 965             ((idx >= ac) && (idx < (2 * ac))))
 966           {
 967               // Selected item: under, low region
 968              dit = eina_list_nth(wd->r_items,
 969                                  idx + ic - (2 * ac));
 970           }
 971         else if (((idx >= (ic - ac)) && (idx < ic)) ||
 972                  ((idx >= (ic - (2 * ac))) && (idx < ic - ac)))
 973           {
 974               // Selected item: over, high region
 975               dit = eina_list_nth(wd->r_items,
 976                                   idx - ic + (2 * ac));
 977           }
 978
 979         if (dit) _item_icon_set(dit, icon);
 980         _sizing_eval(wd->self);
 981      }
 982 }
 983
 984 static void
 985 _item_text_set_hook(Elm_Object_Item *it, const char *part, const char *label)
 986 {
 987    Elm_Diskselector_Item *item;
 988    if (part && strcmp(part, "default")) return;
 989    item = (Elm_Diskselector_Item *)it;
 990    eina_stringshare_replace(&item->label, label);
 991    edje_object_part_text_set(VIEW(item), "elm.text", item->label);
 992 }
 993
 994 static const char *
 995 _item_text_get_hook(const Elm_Object_Item *it, const char *part)
 996 {
 997    if (part && strcmp(part, "default")) return NULL;
 998    return ((Elm_Diskselector_Item *)it)->label;
 999 }
1000
1001 static void
1002 _item_content_set_hook(Elm_Object_Item *it,
1003                        const char *part,
1004                        Evas_Object *content)
1005 {
1006    if (part && strcmp(part, "icon")) return;
1007    _item_icon_set((Elm_Diskselector_Item *)it, content);
1008    _check_identical_item((Elm_Diskselector_Item *)it, content);
1009 }
1010
1011 static Evas_Object *
1012 _item_content_get_hook(const Elm_Object_Item *it, const char *part)
1013 {
1014    if (part && strcmp(part, "icon")) return NULL;
1015    return ((Elm_Diskselector_Item *)it)->icon;
1016 }
1017
1018 EAPI Evas_Object *
1019 elm_diskselector_add(Evas_Object *parent)
1020 {
1021    Evas *e;
1022    Evas_Object *obj;
1023    Widget_Data *wd;
1024
1025    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
1026
1027    ELM_SET_WIDTYPE(widtype, "diskselector");
1028    elm_widget_type_set(obj, "diskselector");
1029    elm_widget_sub_object_add(parent, obj);
1030    elm_widget_data_set(obj, wd);
1031    elm_widget_del_hook_set(obj, _del_hook);
1032    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
1033    elm_widget_theme_hook_set(obj, _theme_hook);
1034    elm_widget_can_focus_set(obj, EINA_TRUE);
1035    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
1036    elm_widget_event_hook_set(obj, _event_hook);
1037
1038    wd->self = obj;
1039    wd->item_count = 0;
1040    wd->round = EINA_FALSE;
1041    wd->init = EINA_FALSE;
1042    wd->len_side = 3;
1043    wd->display_item_num_by_api = EINA_FALSE;
1044
1045    wd->scroller = elm_smart_scroller_add(e);
1046    elm_smart_scroller_widget_set(wd->scroller, obj);
1047    _theme_hook(obj);
1048    elm_widget_resize_object_set(obj, wd->scroller);
1049    elm_smart_scroller_policy_set(wd->scroller, ELM_SMART_SCROLLER_POLICY_OFF,
1050                                  ELM_SMART_SCROLLER_POLICY_OFF);
1051    elm_smart_scroller_bounce_allow_set(wd->scroller, EINA_TRUE, EINA_FALSE);
1052    evas_object_smart_callback_add(wd->scroller, "scroll", _scroller_move_cb,
1053                                   wd);
1054    evas_object_smart_callback_add(wd->scroller, "animate,stop",
1055                                   _scroller_stop_cb, obj);
1056    evas_object_smart_callback_add(wd->scroller, "animate,start",
1057                                   _scroller_start_cb, obj);
1058    evas_object_smart_callback_add(wd->scroller, "drag,stop",
1059                                   _drag_stop_cb, obj);
1060    evas_object_smart_callback_add(wd->scroller, "drag,start",
1061                                   _drag_start_cb, obj);
1062
1063    _elm_theme_object_set(obj, wd->scroller, "diskselector", "base",
1064                          "default");
1065    evas_object_event_callback_add(wd->scroller, EVAS_CALLBACK_RESIZE,
1066                                   _diskselector_object_resize, obj);
1067
1068    wd->main_box = elm_box_add(parent);
1069    elm_box_horizontal_set(wd->main_box, EINA_TRUE);
1070    elm_box_homogeneous_set(wd->main_box, EINA_TRUE);
1071    evas_object_size_hint_weight_set(wd->main_box, EVAS_HINT_EXPAND,
1072                                     EVAS_HINT_EXPAND);
1073    evas_object_size_hint_align_set(wd->main_box, EVAS_HINT_FILL,
1074                                    EVAS_HINT_FILL);
1075    _elm_theme_object_set(obj, wd->main_box, "diskselector", "base",
1076                          "default");
1077    elm_widget_sub_object_add(obj, wd->main_box);
1078
1079    elm_smart_scroller_child_set(wd->scroller, wd->main_box);
1080
1081    wd->left_blank = edje_object_add(evas_object_evas_get(obj));
1082    _elm_theme_object_set(obj, wd->left_blank, "diskselector", "item",
1083                          "default");
1084    evas_object_size_hint_weight_set(wd->left_blank, EVAS_HINT_EXPAND,
1085                                     EVAS_HINT_EXPAND);
1086    evas_object_size_hint_align_set(wd->left_blank, EVAS_HINT_FILL,
1087                                    EVAS_HINT_FILL);
1088    elm_box_pack_end(wd->main_box, wd->left_blank);
1089    evas_object_show(wd->left_blank);
1090
1091    wd->right_blank = edje_object_add(evas_object_evas_get(obj));
1092    _elm_theme_object_set(obj, wd->right_blank, "diskselector", "item",
1093                          "default");
1094    evas_object_size_hint_weight_set(wd->right_blank, EVAS_HINT_EXPAND,
1095                                     EVAS_HINT_EXPAND);
1096    evas_object_size_hint_align_set(wd->right_blank, EVAS_HINT_FILL,
1097                                    EVAS_HINT_FILL);
1098    elm_box_pack_end(wd->main_box, wd->right_blank);
1099    evas_object_show(wd->right_blank);
1100
1101    _theme_data_get(wd);
1102
1103    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
1104    evas_object_smart_callbacks_descriptions_set(obj, _signals);
1105    _sizing_eval(obj);
1106    return obj;
1107 }
1108
1109 EAPI Eina_Bool
1110 elm_diskselector_round_enabled_get(const Evas_Object *obj)
1111 {
1112    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
1113    Widget_Data *wd = elm_widget_data_get(obj);
1114    if (!wd) return EINA_FALSE;
1115    return wd->round;
1116 }
1117
1118 EAPI void
1119 elm_diskselector_round_enabled_set(Evas_Object * obj, Eina_Bool enabled)
1120 {
1121    Eina_List *elist;
1122    Elm_Diskselector_Item *it;
1123
1124    ELM_CHECK_WIDTYPE(obj, widtype);
1125    Widget_Data *wd = elm_widget_data_get(obj);
1126    if (!wd) return;
1127
1128    if (wd->round == enabled)
1129      return;
1130
1131    wd->round = !!enabled;
1132    if (enabled)
1133      {
1134         wd->r_items = eina_list_clone(wd->items);
1135         elm_box_unpack(wd->main_box, wd->left_blank);
1136         evas_object_hide(wd->left_blank);
1137         elm_box_unpack(wd->main_box, wd->right_blank);
1138         evas_object_hide(wd->right_blank);
1139         if (!wd->items)
1140           return;
1141
1142         _round_items_add(wd);
1143
1144         if (wd->last)
1145           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1146         if (wd->s_last)
1147           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1148
1149         // if more than 3 items should be displayed
1150         EINA_LIST_FOREACH(wd->under_items, elist, it)
1151            elm_box_pack_start(wd->main_box, VIEW(it));
1152
1153         if (wd->first)
1154           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1155         if (wd->second)
1156           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1157
1158         // if more than 3 items should be displayed
1159         EINA_LIST_FOREACH(wd->over_items, elist, it)
1160            elm_box_pack_end(wd->main_box, VIEW(it));
1161      }
1162    else
1163      {
1164         _round_items_del(wd);
1165         elm_box_pack_start(wd->main_box, wd->left_blank);
1166         elm_box_pack_end(wd->main_box, wd->right_blank);
1167         eina_list_free(wd->r_items);
1168         wd->r_items = NULL;
1169      }
1170
1171    _selected_item_indicate(wd->selected_item);
1172    _sizing_eval(obj);
1173 }
1174
1175 EAPI int
1176 elm_diskselector_side_text_max_length_get(const Evas_Object *obj)
1177 {
1178    ELM_CHECK_WIDTYPE(obj, widtype) 0;
1179    Widget_Data *wd = elm_widget_data_get(obj);
1180    if (!wd) return 0;
1181    return wd->len_side;
1182 }
1183
1184 EAPI void
1185 elm_diskselector_side_text_max_length_set(Evas_Object *obj, int len)
1186 {
1187    ELM_CHECK_WIDTYPE(obj, widtype);
1188    Widget_Data *wd = elm_widget_data_get(obj);
1189    if (!wd) return;
1190    wd->len_side = len;
1191 }
1192
1193 EAPI void
1194 elm_diskselector_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce)
1195 {
1196    ELM_CHECK_WIDTYPE(obj, widtype);
1197    Widget_Data *wd = elm_widget_data_get(obj);
1198    if (!wd) return;
1199    if (wd->scroller)
1200      elm_smart_scroller_bounce_allow_set(wd->scroller, h_bounce, v_bounce);
1201 }
1202
1203 EAPI void
1204 elm_diskselector_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce)
1205 {
1206    ELM_CHECK_WIDTYPE(obj, widtype);
1207    Widget_Data *wd = elm_widget_data_get(obj);
1208    if (!wd) return;
1209    elm_smart_scroller_bounce_allow_get(wd->scroller, h_bounce, v_bounce);
1210 }
1211
1212 EAPI void
1213 elm_diskselector_scroller_policy_get(const Evas_Object *obj, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v)
1214 {
1215    ELM_CHECK_WIDTYPE(obj, widtype);
1216    Elm_Smart_Scroller_Policy s_policy_h, s_policy_v;
1217    Widget_Data *wd = elm_widget_data_get(obj);
1218    if ((!wd) || (!wd->scroller)) return;
1219    elm_smart_scroller_policy_get(wd->scroller, &s_policy_h, &s_policy_v);
1220    *policy_h = (Elm_Scroller_Policy) s_policy_h;
1221    *policy_v = (Elm_Scroller_Policy) s_policy_v;
1222 }
1223
1224 EAPI void
1225 elm_diskselector_scroller_policy_set(Evas_Object *obj, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v)
1226 {
1227    ELM_CHECK_WIDTYPE(obj, widtype);
1228    Widget_Data *wd = elm_widget_data_get(obj);
1229    if ((!wd) || (!wd->scroller)) return;
1230    if ((policy_h >= ELM_SCROLLER_POLICY_LAST) ||
1231        (policy_v >= ELM_SCROLLER_POLICY_LAST))
1232      return;
1233    elm_smart_scroller_policy_set(wd->scroller, policy_h, policy_v);
1234 }
1235
1236 EAPI void
1237 elm_diskselector_clear(Evas_Object *obj)
1238 {
1239    ELM_CHECK_WIDTYPE(obj, widtype);
1240    Widget_Data *wd = elm_widget_data_get(obj);
1241    Elm_Diskselector_Item *it;
1242
1243    if (!wd) return;
1244    if (!wd->items) return;
1245
1246    wd->selected_item = NULL;
1247    EINA_LIST_FREE(wd->items, it)
1248      {
1249         _item_del(it);
1250         elm_widget_item_free(it);
1251      }
1252    _round_items_del(wd);
1253    _sizing_eval(obj);
1254 }
1255
1256 EAPI const Eina_List *
1257 elm_diskselector_items_get(const Evas_Object *obj)
1258 {
1259    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1260    Widget_Data *wd = elm_widget_data_get(obj);
1261    if (!wd) return NULL;
1262    return wd->items;
1263 }
1264
1265 EAPI Elm_Object_Item *
1266 elm_diskselector_item_append(Evas_Object *obj, const char *label, Evas_Object *icon, Evas_Smart_Cb func, const void *data)
1267 {
1268    Elm_Diskselector_Item *it;
1269    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1270    Widget_Data *wd = elm_widget_data_get(obj);
1271    if (!wd) return NULL;
1272
1273    it = _item_new(obj, icon, label, func, data);
1274    wd->items = eina_list_append(wd->items, it);
1275    it->node = eina_list_last(wd->items);
1276    wd->item_count++;
1277    if (wd->round)
1278      {
1279         _round_items_del(wd);
1280         wd->r_items = eina_list_append(wd->r_items, it);
1281         _round_items_add(wd);
1282         if (wd->last)
1283           elm_box_pack_start(wd->main_box, wd->VIEW(last));
1284         if (wd->s_last)
1285           elm_box_pack_start(wd->main_box, wd->VIEW(s_last));
1286         elm_box_pack_end(wd->main_box, VIEW(it));
1287         if (wd->first)
1288           elm_box_pack_end(wd->main_box, wd->VIEW(first));
1289         if (wd->second)
1290           elm_box_pack_end(wd->main_box, wd->VIEW(second));
1291      }
1292    else
1293      {
1294         elm_box_unpack(wd->main_box, wd->right_blank);
1295         elm_box_pack_end(wd->main_box, VIEW(it));
1296         elm_box_pack_end(wd->main_box, wd->right_blank);
1297      }
1298    if (!wd->selected_item)
1299      wd->selected_item = it;
1300    if (!wd->idler)
1301      wd->idler = ecore_idle_enterer_before_add(_move_scroller, obj);
1302    _sizing_eval(obj);
1303    return (Elm_Object_Item *)it;
1304 }
1305
1306 EAPI Elm_Object_Item *
1307 elm_diskselector_selected_item_get(const Evas_Object *obj)
1308 {
1309    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1310    Widget_Data *wd = elm_widget_data_get(obj);
1311    if (!wd) return NULL;
1312    return (Elm_Object_Item *) wd->selected_item;
1313 }
1314
1315 EAPI void
1316 elm_diskselector_item_selected_set(Elm_Object_Item *it, Eina_Bool selected)
1317 {
1318    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
1319    Widget_Data *wd;
1320    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1321    wd = elm_widget_data_get(WIDGET(item));
1322    if (!wd) return;
1323
1324    if ((wd->selected_item == item) && (selected))
1325      return;
1326
1327    if ((wd->selected_item == item) && (!selected))
1328      wd->selected_item = eina_list_data_get(wd->items);
1329    else
1330      {
1331         wd->selected_item = item;
1332         _selected_item_indicate(wd->selected_item);
1333      }
1334
1335    if (!wd->idler)
1336      wd->idler = ecore_idle_enterer_before_add(_move_scroller, WIDGET(item));
1337 }
1338
1339 EAPI Eina_Bool
1340 elm_diskselector_item_selected_get(const Elm_Object_Item *it)
1341 {
1342    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, EINA_FALSE);
1343    Widget_Data *wd = elm_widget_data_get(WIDGET(it));
1344    if (!wd) return EINA_FALSE;
1345    return (wd->selected_item == ((Elm_Diskselector_Item *)it));
1346 }
1347
1348 EAPI Elm_Object_Item *
1349 elm_diskselector_item_prev_get(const Elm_Object_Item *it)
1350 {
1351    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1352    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1353    if (item->node->prev) return item->node->prev->data;
1354    else return NULL;
1355 }
1356
1357 EAPI Elm_Object_Item *
1358 elm_diskselector_item_next_get(const Elm_Object_Item *it)
1359 {
1360    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
1361    Elm_Diskselector_Item *item = (Elm_Diskselector_Item *)it;
1362    if (item->node->next) return item->node->next->data;
1363    else return NULL;
1364 }
1365
1366 EAPI Elm_Object_Item *
1367 elm_diskselector_first_item_get(const Evas_Object *obj)
1368 {
1369    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1370    Widget_Data *wd = elm_widget_data_get(obj);
1371    if (!wd || !wd->items) return NULL;
1372    return eina_list_data_get(wd->items);
1373 }
1374
1375 EAPI Elm_Object_Item *
1376 elm_diskselector_last_item_get(const Evas_Object *obj)
1377 {
1378    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
1379    Widget_Data *wd = elm_widget_data_get(obj);
1380    if (!wd || !wd->items) return NULL;
1381    return eina_list_data_get(eina_list_last(wd->items));
1382 }
1383
1384 EAPI void
1385 elm_diskselector_display_item_num_set(Evas_Object *obj, int num)
1386 {
1387    ELM_CHECK_WIDTYPE(obj, widtype);
1388    Widget_Data *wd = elm_widget_data_get(obj);
1389    if (!wd) return;
1390    if (num < DISPLAY_ITEM_NUM_MIN) num = DISPLAY_ITEM_NUM_MIN;
1391    wd->display_item_num = num;
1392    wd->display_item_num_by_api = EINA_TRUE;
1393 }
1394
1395 EAPI int
1396 elm_diskselector_display_item_num_get(const Evas_Object *item)
1397 {
1398    ELM_CHECK_WIDTYPE(item, widtype) (-1);
1399    Widget_Data *wd = elm_widget_data_get(item);
1400    if (!wd) return -1;
1401    return wd->display_item_num;
1402 }