src/lib/elm_slideshow.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 typedef struct _Widget_Data Widget_Data;
   5 typedef struct _Elm_Slideshow_Item Elm_Slideshow_Item;
   6
   7 struct _Elm_Slideshow_Item
   8 {
   9    ELM_WIDGET_ITEM;
  10
  11    Eina_List *l, *l_built;
  12
  13    const Elm_Slideshow_Item_Class *itc;
  14 };
  15
  16 struct _Widget_Data
  17 {
  18    Evas_Object *slideshow;
  19
  20    // list of Elm_Slideshow_Item*
  21    Eina_List *items;
  22    Eina_List *items_built;
  23
  24    Elm_Slideshow_Item *current;
  25    Elm_Slideshow_Item *previous;
  26
  27    Eina_List *transitions;
  28    const char *transition;
  29
  30    int count_item_pre_before;
  31    int count_item_pre_after;
  32    Ecore_Timer *timer;
  33    double timeout;
  34    Eina_Bool loop:1;
  35
  36    struct
  37      {
  38         const char *current;
  39         Eina_List *list; //list of const char *
  40      } layout;
  41 };
  42
  43 static const char *widtype = NULL;
  44 static void _del_pre_hook(Evas_Object *obj);
  45 static void _del_hook(Evas_Object *obj);
  46 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  47 static void _theme_hook(Evas_Object *obj);
  48 static void _sizing_eval(Evas_Object *obj);
  49 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  50 static Eina_Bool _timer_cb(void *data);
  51 static void _on_focus_hook(void *data, Evas_Object *obj);
  52 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  53                              Evas_Callback_Type type, void *event_info);
  54
  55 static const char SIG_CHANGED[] = "changed";
  56 static const char SIG_TRANSITION_END[] = "transition,end";
  57
  58 static const Evas_Smart_Cb_Description _signals[] = {
  59    {SIG_CHANGED, ""},
  60    {SIG_TRANSITION_END, ""},
  61    {NULL, NULL}
  62 };
  63
  64 static Eina_Bool
  65 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
  66 {
  67    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
  68    Evas_Event_Key_Down *ev = event_info;
  69    Widget_Data *wd = elm_widget_data_get(obj);
  70    if (!wd) return EINA_FALSE;
  71    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  72    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  73    if ((!strcmp(ev->keyname, "Left")) || (!strcmp(ev->keyname, "KP_Left")))
  74      {
  75         elm_slideshow_previous(obj);
  76         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  77         return EINA_TRUE;
  78      }
  79    if ((!strcmp(ev->keyname, "Right")) || (!strcmp(ev->keyname, "KP_Right")))
  80      {
  81         elm_slideshow_next(obj);
  82         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  83         return EINA_TRUE;
  84      }
  85    if ((!strcmp(ev->keyname, "Return")) ||
  86        (!strcmp(ev->keyname, "KP_Enter")) ||
  87        (!strcmp(ev->keyname, "space")))
  88      {
  89         if (wd->timeout)
  90           {
  91              if (wd->timer)
  92                {
  93                   ecore_timer_del(wd->timer);
  94                   wd->timer = NULL;
  95                }
  96              else
  97                elm_slideshow_timeout_set(obj, wd->timeout);
  98           }
  99         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 100         return EINA_TRUE;
 101      }
 102    return EINA_FALSE;
 103 }
 104
 105 static void
 106 _del_pre_hook(Evas_Object *obj)
 107 {
 108    Widget_Data *wd = elm_widget_data_get(obj);
 109    if (!wd) return;
 110    evas_object_event_callback_del_full(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 111                                        _changed_size_hints, obj);
 112 }
 113
 114 static void
 115 _del_hook(Evas_Object *obj)
 116 {
 117    const char *layout;
 118    Widget_Data *wd = elm_widget_data_get(obj);
 119    if (!wd) return;
 120    elm_slideshow_clear(obj);
 121    elm_widget_stringlist_free(wd->transitions);
 122    if (wd->timer) ecore_timer_del(wd->timer);
 123    EINA_LIST_FREE(wd->layout.list, layout)
 124       eina_stringshare_del(layout);
 125    free(wd);
 126 }
 127
 128 static void
 129 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 130 {
 131    Widget_Data *wd = elm_widget_data_get(obj);
 132    if (!wd) return;
 133    if (elm_widget_focus_get(obj))
 134      {
 135         edje_object_signal_emit(wd->slideshow, "elm,action,focus", "elm");
 136         evas_object_focus_set(wd->slideshow, EINA_TRUE);
 137      }
 138    else
 139      {
 140         edje_object_signal_emit(wd->slideshow, "elm,action,unfocus", "elm");
 141         evas_object_focus_set(wd->slideshow, EINA_FALSE);
 142      }
 143 }
 144
 145 static void
 146 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
 147 {
 148    Widget_Data *wd = elm_widget_data_get(obj);
 149    if (!wd) return;
 150    edje_object_mirrored_set(wd->slideshow, rtl);
 151 }
 152
 153 static void
 154 _theme_hook(Evas_Object *obj)
 155 {
 156    Widget_Data *wd = elm_widget_data_get(obj);
 157    if (!wd) return;
 158    _elm_widget_mirrored_reload(obj);
 159    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 160    _elm_theme_object_set(obj, wd->slideshow, "slideshow", "base", elm_widget_style_get(obj));
 161    edje_object_scale_set(wd->slideshow, elm_widget_scale_get(obj) *
 162                          _elm_config->scale);
 163    _sizing_eval(obj);
 164 }
 165
 166 static void
 167 _sizing_eval(Evas_Object *obj)
 168 {
 169    Widget_Data *wd = elm_widget_data_get(obj);
 170    Evas_Coord minw = -1, minh = -1;
 171    if (!wd) return;
 172    edje_object_size_min_calc(wd->slideshow, &minw, &minh);
 173    evas_object_size_hint_min_set(obj, minw, minh);
 174    evas_object_size_hint_max_set(obj, minw, minh);
 175 }
 176
 177
 178 static Elm_Slideshow_Item* _item_prev_get(Elm_Slideshow_Item* item)
 179 {
 180    Widget_Data *wd = elm_widget_data_get(WIDGET(item));
 181    Elm_Slideshow_Item* prev = eina_list_data_get(eina_list_prev(item->l));
 182    if ((!prev) && (wd->loop))
 183      prev = eina_list_data_get(eina_list_last(item->l));
 184    return prev;
 185 }
 186
 187 static Elm_Slideshow_Item* _item_next_get(Elm_Slideshow_Item* item)
 188 {
 189    Widget_Data *wd = elm_widget_data_get(WIDGET(item));
 190    Elm_Slideshow_Item* next = eina_list_data_get(eina_list_next(item->l));
 191    if ((!next) && (wd->loop))
 192      next = eina_list_data_get(wd->items);
 193    return next;
 194 }
 195
 196 static void
 197 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 198 {
 199    _sizing_eval(data);
 200 }
 201
 202 static void
 203 _sub_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 204 {
 205    ;
 206 }
 207
 208 static void
 209 _item_realize(Elm_Slideshow_Item *item)
 210 {
 211    Elm_Slideshow_Item *_item_prev, *_item_next;
 212    Evas_Object *obj = WIDGET(item);
 213    Widget_Data *wd = elm_widget_data_get(obj);
 214    int ac, bc, lc, ic = 0;
 215
 216    if (!wd) return;
 217    if ((!VIEW(item)) && (item->itc->func.get))
 218      {
 219         VIEW(item) = item->itc->func.get(elm_widget_item_data_get(item),
 220                                          obj);
 221         evas_object_smart_member_add(VIEW(item), obj);
 222         item->l_built = eina_list_append(NULL, item);
 223         wd->items_built = eina_list_merge(wd->items_built, item->l_built);
 224         //FIXME: item could be showed by obj
 225         evas_object_hide(VIEW(item));
 226      }
 227    else if (item->l_built)
 228      wd->items_built = eina_list_demote_list(wd->items_built, item->l_built);
 229
 230    //pre-create previous and next item
 231    ac = wd->count_item_pre_after;
 232    _item_next = item;
 233    bc = wd->count_item_pre_before;
 234    _item_prev = item;
 235    lc = eina_list_count(wd->items) - 1;
 236    while (lc > 0 && ((ac > 0) || (bc > 0)))
 237      {
 238         if (lc > 0 && ac > 0)
 239           {
 240              --ac;
 241              --lc;
 242              if (_item_next)
 243                {
 244                   _item_next = _item_next_get(_item_next);
 245                   if ((_item_next)
 246                       && (!VIEW(_item_next))
 247                       && (_item_next->itc->func.get))
 248                     {
 249                        ic++;
 250                        VIEW(_item_next) =
 251                           _item_next->itc->func.get(
 252                              elm_widget_item_data_get(_item_next), obj);
 253                        evas_object_smart_member_add(VIEW(_item_next), obj);
 254                        _item_next->l_built = eina_list_append(NULL, _item_next);
 255                        wd->items_built = eina_list_merge(wd->items_built,
 256                                                          _item_next->l_built);
 257                        //FIXME: _item_next could be showed by obj later
 258                        evas_object_hide(VIEW(_item_next));
 259                     }
 260                   else if (_item_next && _item_next->l_built)
 261                     {
 262                        ic++;
 263                        wd->items_built =
 264                            eina_list_demote_list(wd->items_built,
 265                                              _item_next->l_built);
 266                     }
 267                }
 268           }
 269
 270         if (lc > 0 && bc > 0)
 271           {
 272              --bc;
 273              --lc;
 274              if (_item_prev)
 275                {
 276                   _item_prev = _item_prev_get(_item_prev);
 277                   if ((_item_prev)
 278                       && (!VIEW(_item_prev))
 279                       && (_item_prev->itc->func.get))
 280                     {
 281                        ic++;
 282                        VIEW(_item_prev) =
 283                           _item_prev->itc->func.get(
 284                              elm_widget_item_data_get(_item_prev), obj);
 285                        evas_object_smart_member_add(VIEW(_item_prev), obj);
 286                        _item_prev->l_built = eina_list_append(NULL, _item_prev);
 287                        wd->items_built = eina_list_merge(wd->items_built,
 288                                                          _item_prev->l_built);
 289                        //FIXME: _item_prev could be showed by obj later
 290                        evas_object_hide(VIEW(_item_prev));
 291                     }
 292                   else if (_item_prev && _item_prev->l_built)
 293                     {
 294                        ic++;
 295                        wd->items_built =
 296                            eina_list_demote_list(wd->items_built,
 297                                              _item_prev->l_built);
 298                     }
 299                }
 300           }
 301      }
 302
 303    //delete unused items
 304    lc = ic + 1;
 305    while ((int)eina_list_count(wd->items_built) > lc)
 306      {
 307         item = eina_list_data_get(wd->items_built);
 308         wd->items_built = eina_list_remove_list(wd->items_built,
 309                                                 wd->items_built);
 310         if (item->itc->func.del)
 311           item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 312         evas_object_del(VIEW(item));
 313         VIEW(item) = NULL;
 314      }
 315 }
 316
 317 static void
 318 _end(void *data, Evas_Object *obj __UNUSED__, const char *emission, const char *source __UNUSED__)
 319 {
 320    Elm_Slideshow_Item *item;
 321    Widget_Data *wd = elm_widget_data_get(data);
 322    if (!wd) return;
 323
 324    item = wd->previous;
 325    if (item)
 326      {
 327         edje_object_part_unswallow(wd->slideshow, VIEW(item));
 328         evas_object_hide(VIEW(item));
 329         wd->previous = NULL;
 330      }
 331
 332    item = wd->current;
 333    if ((!item) || (!VIEW(item))) return;
 334
 335    _item_realize(item);
 336    edje_object_part_unswallow(wd->slideshow, VIEW(item));
 337
 338    edje_object_part_swallow(wd->slideshow, "elm.swallow.1", VIEW(item));
 339    edje_object_signal_emit(wd->slideshow, "anim,end", "slideshow");
 340    if (emission != NULL)
 341      evas_object_smart_callback_call(data, SIG_TRANSITION_END, wd->current);
 342 }
 343
 344 static Eina_Bool
 345 _timer_cb(void *data)
 346 {
 347    Evas_Object *obj = data;
 348    Widget_Data *wd = elm_widget_data_get(obj);
 349    if (!wd) return ECORE_CALLBACK_CANCEL;
 350    wd->timer = NULL;
 351    elm_slideshow_next(obj);
 352    return ECORE_CALLBACK_CANCEL;
 353 }
 354
 355 static Eina_Bool
 356 _item_del_pre_hook(Elm_Object_Item *it)
 357 {
 358    Elm_Slideshow_Item *item = (Elm_Slideshow_Item *)it;
 359    Widget_Data *wd = elm_widget_data_get(WIDGET(item));
 360    if (!wd) return EINA_FALSE;
 361
 362    if (wd->previous == item) wd->previous = NULL;
 363    if (wd->current == item)
 364      {
 365         Eina_List *l = eina_list_data_find_list(wd->items, item);
 366         Eina_List *l2 = eina_list_next(l);
 367         wd->current = NULL;
 368         if (!l2)
 369           {
 370              l2 = eina_list_prev(l);
 371              if (l2)
 372                elm_slideshow_item_show(eina_list_data_get(l2));
 373
 374           }
 375         else
 376           elm_slideshow_item_show(eina_list_data_get(l2));
 377      }
 378
 379    wd->items = eina_list_remove_list(wd->items, item->l);
 380    wd->items_built = eina_list_remove_list(wd->items_built, item->l_built);
 381
 382    if ((VIEW(item)) && (item->itc->func.del))
 383      item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 384
 385    return EINA_TRUE;
 386 }
 387
 388 EAPI Evas_Object *
 389 elm_slideshow_add(Evas_Object *parent)
 390 {
 391    Evas_Object *obj;
 392    Evas *e;
 393    Widget_Data *wd;
 394
 395    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 396
 397    ELM_SET_WIDTYPE(widtype, "slideshow");
 398    elm_widget_type_set(obj, "slideshow");
 399    elm_widget_sub_object_add(parent, obj);
 400    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 401    elm_widget_data_set(obj, wd);
 402    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 403    elm_widget_del_hook_set(obj, _del_hook);
 404    elm_widget_theme_hook_set(obj, _theme_hook);
 405    elm_widget_can_focus_set(obj, EINA_TRUE);
 406    elm_widget_event_hook_set(obj, _event_hook);
 407
 408    wd->current = NULL;
 409    wd->previous = NULL;
 410
 411    wd->slideshow = edje_object_add(e);
 412    _elm_theme_object_set(obj, wd->slideshow, "slideshow", "base", "default");
 413    wd->count_item_pre_before = 2;
 414    wd->count_item_pre_after = 2;
 415    elm_widget_resize_object_set(obj, wd->slideshow);
 416
 417    wd->transitions = elm_widget_stringlist_get(edje_object_data_get(wd->slideshow, "transitions"));
 418    if (eina_list_count(wd->transitions) > 0)
 419      wd->transition = eina_stringshare_add(eina_list_data_get(wd->transitions));
 420
 421    wd->layout.list = elm_widget_stringlist_get(edje_object_data_get(wd->slideshow, "layouts"));
 422    if (eina_list_count(wd->layout.list) > 0)
 423      wd->layout.current = eina_list_data_get(wd->layout.list);
 424
 425    edje_object_signal_callback_add(wd->slideshow, "end", "slideshow", _end, obj);
 426
 427    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 428    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
 429
 430    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 431
 432    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 433    _sizing_eval(obj);
 434    return obj;
 435 }
 436
 437 EAPI Elm_Object_Item*
 438 elm_slideshow_item_add(Evas_Object *obj, const Elm_Slideshow_Item_Class *itc, const void *data)
 439 {
 440    Elm_Slideshow_Item *item;
 441    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 442    Widget_Data *wd = elm_widget_data_get(obj);
 443
 444    if (!wd) return NULL;
 445    item = elm_widget_item_new(obj, Elm_Slideshow_Item);
 446    if (!item) return NULL;
 447    elm_widget_item_del_pre_hook_set(item, _item_del_pre_hook);
 448    item->itc = itc;
 449    item->l = eina_list_append(item->l, item);
 450    elm_widget_item_data_set(item, data);
 451
 452    wd->items = eina_list_merge(wd->items, item->l);
 453
 454    if (!wd->current) elm_slideshow_item_show((Elm_Object_Item *)item);
 455
 456    return (Elm_Object_Item *)item;
 457 }
 458
 459 EAPI Elm_Object_Item*
 460 elm_slideshow_item_sorted_insert(Evas_Object *obj, const Elm_Slideshow_Item_Class *itc, const void *data, Eina_Compare_Cb func)
 461 {
 462    Elm_Slideshow_Item *item;
 463    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 464    Widget_Data *wd = elm_widget_data_get(obj);
 465    if (!wd) return NULL;
 466
 467    item = elm_widget_item_new(obj, Elm_Slideshow_Item);
 468    if (!item) return NULL;
 469    elm_widget_item_del_pre_hook_set(item, _item_del_pre_hook);
 470    item->itc = itc;
 471    item->l = eina_list_append(item->l, item);
 472    elm_widget_item_data_set(item, data);
 473
 474    wd->items = eina_list_sorted_merge(wd->items, item->l, func);
 475
 476    if (!wd->current) elm_slideshow_item_show((Elm_Object_Item *)item);
 477
 478    return (Elm_Object_Item *)item;
 479 }
 480
 481 EAPI void
 482 elm_slideshow_item_show(Elm_Object_Item *it)
 483 {
 484    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 485
 486    char buf[1024];
 487    Elm_Slideshow_Item *item, *next = NULL;
 488    Widget_Data *wd;
 489    item = (Elm_Slideshow_Item *)it;
 490    wd = elm_widget_data_get(WIDGET(item));
 491    if (!wd)  return;
 492    if (item == wd->current) return;
 493
 494    next = item;
 495    _end(WIDGET(item), WIDGET(item), NULL, NULL);
 496
 497    if (wd->timer) ecore_timer_del(wd->timer);
 498    wd->timer = NULL;
 499    if (wd->timeout > 0.0)
 500      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, WIDGET(item));
 501    _item_realize(next);
 502    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(next));
 503    snprintf(buf, sizeof(buf), "%s,next", wd->transition);
 504    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 505    wd->previous = wd->current;
 506    wd->current = next;
 507    evas_object_smart_callback_call(WIDGET(item), SIG_CHANGED, wd->current);
 508 }
 509
 510 EAPI void
 511 elm_slideshow_next(Evas_Object *obj)
 512 {
 513    char buf[1024];
 514    Elm_Slideshow_Item *next = NULL;
 515    ELM_CHECK_WIDTYPE(obj, widtype);
 516    Widget_Data *wd = elm_widget_data_get(obj);
 517
 518    if (!wd) return;
 519
 520    if (wd->current)
 521      next = _item_next_get(wd->current);
 522
 523    if ((!next) || (next == wd->current)) return;
 524
 525    _end(obj, obj, NULL, NULL);
 526
 527    if (wd->timer) ecore_timer_del(wd->timer);
 528    wd->timer = NULL;
 529    if (wd->timeout > 0.0)
 530      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, obj);
 531
 532    _item_realize(next);
 533
 534    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(next));
 535
 536    snprintf(buf, sizeof(buf), "%s,next", wd->transition);
 537    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 538
 539    wd->previous = wd->current;
 540    wd->current = next;
 541    evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
 542 }
 543
 544 EAPI void
 545 elm_slideshow_previous(Evas_Object *obj)
 546 {
 547    char buf[1024];
 548    Elm_Slideshow_Item *prev = NULL;
 549    ELM_CHECK_WIDTYPE(obj, widtype);
 550    Widget_Data *wd = elm_widget_data_get(obj);
 551
 552    if (!wd) return;
 553
 554    if (wd->current)
 555      prev = _item_prev_get(wd->current);
 556
 557    if ((!prev) ||  (prev == wd->current)) return;
 558
 559    _end(obj, obj, NULL, NULL);
 560
 561    if (wd->timer) ecore_timer_del(wd->timer);
 562    wd->timer = NULL;
 563    if (wd->timeout > 0.0)
 564      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, obj);
 565
 566    _item_realize(prev);
 567
 568    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(prev));
 569
 570    snprintf(buf, 1024, "%s,previous", wd->transition);
 571    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 572
 573    wd->previous = wd->current;
 574    wd->current = prev;
 575    evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
 576 }
 577
 578 EAPI const Eina_List *
 579 elm_slideshow_transitions_get(const Evas_Object *obj)
 580 {
 581    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 582    Widget_Data *wd = elm_widget_data_get(obj);
 583    if (!wd) return NULL;
 584    return wd->transitions;
 585 }
 586
 587 EAPI const Eina_List *
 588 elm_slideshow_layouts_get(const Evas_Object *obj)
 589 {
 590    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 591    Widget_Data *wd = elm_widget_data_get(obj);
 592    if (!wd) return NULL;
 593    return wd->layout.list;
 594 }
 595
 596 EAPI void
 597 elm_slideshow_transition_set(Evas_Object *obj, const char *transition)
 598 {
 599    ELM_CHECK_WIDTYPE(obj, widtype);
 600    Widget_Data *wd = elm_widget_data_get(obj);
 601    if (!wd) return;
 602    eina_stringshare_replace(&wd->transition, transition);
 603 }
 604
 605 EAPI const char *
 606 elm_slideshow_transition_get(const Evas_Object *obj)
 607 {
 608    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 609    Widget_Data *wd = elm_widget_data_get(obj);
 610    if (!wd) return NULL;
 611    return wd->transition;
 612 }
 613
 614 EAPI void
 615 elm_slideshow_timeout_set(Evas_Object *obj, double timeout)
 616 {
 617    ELM_CHECK_WIDTYPE(obj, widtype);
 618    Widget_Data *wd = elm_widget_data_get(obj);
 619    if (!wd) return;
 620    wd->timeout = timeout;
 621    if (wd->timer) ecore_timer_del(wd->timer);
 622    wd->timer = NULL;
 623    if (timeout > 0.0)
 624      wd->timer = ecore_timer_add(timeout, _timer_cb, obj);
 625 }
 626
 627 EAPI double
 628 elm_slideshow_timeout_get(const Evas_Object *obj)
 629 {
 630    ELM_CHECK_WIDTYPE(obj, widtype) -1.0;
 631    Widget_Data *wd = elm_widget_data_get(obj);
 632    if (!wd) return -1.0;
 633    return wd->timeout;
 634 }
 635
 636 EAPI void
 637 elm_slideshow_loop_set(Evas_Object *obj, Eina_Bool loop)
 638 {
 639    ELM_CHECK_WIDTYPE(obj, widtype);
 640    Widget_Data *wd = elm_widget_data_get(obj);
 641    if (!wd) return;
 642    wd->loop = loop;
 643 }
 644
 645 EAPI const char *
 646 elm_slideshow_layout_get(const Evas_Object *obj)
 647 {
 648    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 649    Widget_Data *wd = elm_widget_data_get(obj);
 650    if (!wd) return EINA_FALSE;
 651    return wd->layout.current;
 652 }
 653
 654 EAPI void
 655 elm_slideshow_layout_set(Evas_Object *obj, const char *layout)
 656 {
 657    char buf[PATH_MAX];
 658    ELM_CHECK_WIDTYPE(obj, widtype);
 659    Widget_Data *wd = elm_widget_data_get(obj);
 660    if (!wd) return;
 661
 662    wd->layout.current = layout;
 663    snprintf(buf, sizeof(buf), "layout,%s", layout);
 664    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 665 }
 666
 667 EAPI Eina_Bool
 668 elm_slideshow_loop_get(const Evas_Object *obj)
 669 {
 670    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 671    Widget_Data *wd = elm_widget_data_get(obj);
 672    if (!wd) return EINA_FALSE;
 673    return wd->loop;
 674 }
 675
 676 EAPI void
 677 elm_slideshow_clear(Evas_Object *obj)
 678 {
 679    Elm_Slideshow_Item *item;
 680    ELM_CHECK_WIDTYPE(obj, widtype);
 681    Widget_Data *wd = elm_widget_data_get(obj);
 682    if (!wd) return;
 683    wd->previous = NULL;
 684    wd->current = NULL;
 685    EINA_LIST_FREE(wd->items_built, item)
 686      {
 687         if (item->itc->func.del)
 688           item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 689      }
 690
 691    EINA_LIST_FREE(wd->items, item)
 692      elm_widget_item_free(item);
 693 }
 694
 695 EAPI const Eina_List *
 696 elm_slideshow_items_get(const Evas_Object *obj)
 697 {
 698    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 699    Widget_Data *wd = elm_widget_data_get(obj);
 700    if (!wd) return NULL;
 701    return wd->items;
 702 }
 703
 704 EAPI Elm_Object_Item *
 705 elm_slideshow_item_current_get(const Evas_Object *obj)
 706 {
 707    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 708    Widget_Data *wd = elm_widget_data_get(obj);
 709    if (!wd) return NULL;
 710    return (Elm_Object_Item *) wd->current;
 711 }
 712
 713 EAPI Evas_Object *
 714 elm_slideshow_item_object_get(const Elm_Object_Item * it)
 715 {
 716    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 717    return VIEW(it);
 718 }
 719
 720 EAPI int
 721 elm_slideshow_cache_before_get(const Evas_Object *obj)
 722 {
 723    ELM_CHECK_WIDTYPE(obj, widtype) -1;
 724    Widget_Data *wd = elm_widget_data_get(obj);
 725    if (!wd) return -1;
 726    return wd->count_item_pre_before;
 727 }
 728
 729 EAPI void
 730 elm_slideshow_cache_before_set(Evas_Object *obj, int count)
 731 {
 732    ELM_CHECK_WIDTYPE(obj, widtype);
 733    Widget_Data *wd = elm_widget_data_get(obj);
 734    if (!wd) return;
 735    if (count < 0) count = 0;
 736    wd->count_item_pre_before = count;
 737 }
 738
 739 EAPI int
 740 elm_slideshow_cache_after_get(const Evas_Object *obj)
 741 {
 742    ELM_CHECK_WIDTYPE(obj, widtype) -1;
 743    Widget_Data *wd = elm_widget_data_get(obj);
 744    if (!wd) return -1;
 745    return wd->count_item_pre_after;
 746 }
 747
 748 EAPI void
 749 elm_slideshow_cache_after_set(Evas_Object *obj, int count)
 750 {
 751    ELM_CHECK_WIDTYPE(obj, widtype);
 752    Widget_Data *wd = elm_widget_data_get(obj);
 753    if (!wd) return;
 754    if (count < 0) count = 0;
 755    wd->count_item_pre_after = count;
 756 }
 757
 758 EAPI Elm_Object_Item *
 759 elm_slideshow_item_nth_get(const Evas_Object *obj, unsigned int nth)
 760 {
 761    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 762    Widget_Data *wd = elm_widget_data_get(obj);
 763    if (!wd) return NULL;
 764    return eina_list_nth(wd->items, nth);
 765 }
 766
 767 EAPI unsigned int
 768 elm_slideshow_count_get(const Evas_Object *obj)
 769 {
 770    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 771    Widget_Data *wd = elm_widget_data_get(obj);
 772    if (!wd) return 0;
 773    return eina_list_count(wd->items);
 774 }