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         evas_object_hide(VIEW(item));
 225      }
 226    else if (item->l_built)
 227      wd->items_built = eina_list_demote_list(wd->items_built, item->l_built);
 228
 229    //pre-create previous and next item
 230    ac = wd->count_item_pre_after;
 231    _item_next = item;
 232    bc = wd->count_item_pre_before;
 233    _item_prev = item;
 234    lc = eina_list_count(wd->items) - 1;
 235    while (lc > 0 && ((ac > 0) || (bc > 0)))
 236      {
 237         if (lc > 0 && ac > 0)
 238           {
 239              --ac;
 240              --lc;
 241              if (_item_next)
 242                {
 243                   _item_next = _item_next_get(_item_next);
 244                   if ((_item_next)
 245                       && (!VIEW(_item_next))
 246                       && (_item_next->itc->func.get))
 247                     {
 248                        ic++;
 249                        VIEW(_item_next) =
 250                           _item_next->itc->func.get(
 251                              elm_widget_item_data_get(_item_next), obj);
 252                        evas_object_smart_member_add(VIEW(_item_next), obj);
 253                        _item_next->l_built = eina_list_append(NULL, _item_next);
 254                        wd->items_built = eina_list_merge(wd->items_built,
 255                                                          _item_next->l_built);
 256                        evas_object_hide(VIEW(_item_next));
 257                     }
 258                   else if (_item_next && _item_next->l_built)
 259                     {
 260                        ic++;
 261                        wd->items_built =
 262                            eina_list_demote_list(wd->items_built,
 263                                              _item_next->l_built);
 264                     }
 265                }
 266           }
 267
 268         if (lc > 0 && bc > 0)
 269           {
 270              --bc;
 271              --lc;
 272              if (_item_prev)
 273                {
 274                   _item_prev = _item_prev_get(_item_prev);
 275                   if ((_item_prev)
 276                       && (!VIEW(_item_prev))
 277                       && (_item_prev->itc->func.get))
 278                     {
 279                        ic++;
 280                        VIEW(_item_prev) =
 281                           _item_prev->itc->func.get(
 282                              elm_widget_item_data_get(_item_prev), obj);
 283                        evas_object_smart_member_add(VIEW(_item_prev), obj);
 284                        _item_prev->l_built = eina_list_append(NULL, _item_prev);
 285                        wd->items_built = eina_list_merge(wd->items_built,
 286                                                          _item_prev->l_built);
 287                        evas_object_hide(VIEW(_item_prev));
 288                     }
 289                   else if (_item_prev && _item_prev->l_built)
 290                     {
 291                        ic++;
 292                        wd->items_built =
 293                            eina_list_demote_list(wd->items_built,
 294                                              _item_prev->l_built);
 295                     }
 296                }
 297           }
 298      }
 299
 300    //delete unused items
 301    lc = ic + 1;
 302    while ((int)eina_list_count(wd->items_built) > lc)
 303      {
 304         item = eina_list_data_get(wd->items_built);
 305         wd->items_built = eina_list_remove_list(wd->items_built,
 306                                                 wd->items_built);
 307         if (item->itc->func.del)
 308           item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 309         evas_object_del(VIEW(item));
 310         VIEW(item) = NULL;
 311      }
 312 }
 313
 314 static void
 315 _end(void *data, Evas_Object *obj __UNUSED__, const char *emission, const char *source __UNUSED__)
 316 {
 317    Elm_Slideshow_Item *item;
 318    Widget_Data *wd = elm_widget_data_get(data);
 319    if (!wd) return;
 320
 321    item = wd->previous;
 322    if (item)
 323      {
 324         edje_object_part_unswallow(wd->slideshow, VIEW(item));
 325         evas_object_hide(VIEW(item));
 326         wd->previous = NULL;
 327      }
 328
 329    item = wd->current;
 330    if ((!item) || (!VIEW(item))) return;
 331
 332    _item_realize(item);
 333    edje_object_part_unswallow(wd->slideshow, VIEW(item));
 334
 335    edje_object_part_swallow(wd->slideshow, "elm.swallow.1", VIEW(item));
 336    edje_object_signal_emit(wd->slideshow, "anim,end", "slideshow");
 337    if (emission != NULL)
 338      evas_object_smart_callback_call(data, SIG_TRANSITION_END, wd->current);
 339 }
 340
 341 static Eina_Bool
 342 _timer_cb(void *data)
 343 {
 344    Evas_Object *obj = data;
 345    Widget_Data *wd = elm_widget_data_get(obj);
 346    if (!wd) return ECORE_CALLBACK_CANCEL;
 347    wd->timer = NULL;
 348    elm_slideshow_next(obj);
 349    return ECORE_CALLBACK_CANCEL;
 350 }
 351
 352 static Eina_Bool
 353 _item_del_pre_hook(Elm_Object_Item *it)
 354 {
 355    Elm_Slideshow_Item *item = (Elm_Slideshow_Item *)it;
 356    Widget_Data *wd = elm_widget_data_get(WIDGET(item));
 357    if (!wd) return EINA_FALSE;
 358
 359    if (wd->previous == item) wd->previous = NULL;
 360    if (wd->current == item)
 361      {
 362         Eina_List *l = eina_list_data_find_list(wd->items, item);
 363         Eina_List *l2 = eina_list_next(l);
 364         wd->current = NULL;
 365         if (!l2)
 366           {
 367              l2 = eina_list_prev(l);
 368              if (l2)
 369                elm_slideshow_item_show(eina_list_data_get(l2));
 370
 371           }
 372         else
 373           elm_slideshow_item_show(eina_list_data_get(l2));
 374      }
 375
 376    wd->items = eina_list_remove_list(wd->items, item->l);
 377    wd->items_built = eina_list_remove_list(wd->items_built, item->l_built);
 378
 379    if ((VIEW(item)) && (item->itc->func.del))
 380      item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 381
 382    return EINA_TRUE;
 383 }
 384
 385 EAPI Evas_Object *
 386 elm_slideshow_add(Evas_Object *parent)
 387 {
 388    Evas_Object *obj;
 389    Evas *e;
 390    Widget_Data *wd;
 391
 392    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 393
 394    ELM_SET_WIDTYPE(widtype, "slideshow");
 395    elm_widget_type_set(obj, "slideshow");
 396    elm_widget_sub_object_add(parent, obj);
 397    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 398    elm_widget_data_set(obj, wd);
 399    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 400    elm_widget_del_hook_set(obj, _del_hook);
 401    elm_widget_theme_hook_set(obj, _theme_hook);
 402    elm_widget_can_focus_set(obj, EINA_TRUE);
 403    elm_widget_event_hook_set(obj, _event_hook);
 404
 405    wd->current = NULL;
 406    wd->previous = NULL;
 407
 408    wd->slideshow = edje_object_add(e);
 409    _elm_theme_object_set(obj, wd->slideshow, "slideshow", "base", "default");
 410    evas_object_smart_member_add(wd->slideshow, obj);
 411    wd->count_item_pre_before = 2;
 412    wd->count_item_pre_after = 2;
 413    elm_widget_resize_object_set(obj, wd->slideshow);
 414    evas_object_show(wd->slideshow);
 415
 416    wd->transitions = elm_widget_stringlist_get(edje_object_data_get(wd->slideshow, "transitions"));
 417    if (eina_list_count(wd->transitions) > 0)
 418      wd->transition = eina_stringshare_add(eina_list_data_get(wd->transitions));
 419
 420    wd->layout.list = elm_widget_stringlist_get(edje_object_data_get(wd->slideshow, "layouts"));
 421    if (eina_list_count(wd->layout.list) > 0)
 422      wd->layout.current = eina_list_data_get(wd->layout.list);
 423
 424    edje_object_signal_callback_add(wd->slideshow, "end", "slideshow", _end, obj);
 425
 426    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 427    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
 428
 429    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 430
 431    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 432    _sizing_eval(obj);
 433    return obj;
 434 }
 435
 436 EAPI Elm_Object_Item*
 437 elm_slideshow_item_add(Evas_Object *obj, const Elm_Slideshow_Item_Class *itc, const void *data)
 438 {
 439    Elm_Slideshow_Item *item;
 440    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 441    Widget_Data *wd = elm_widget_data_get(obj);
 442
 443    if (!wd) return NULL;
 444    item = elm_widget_item_new(obj, Elm_Slideshow_Item);
 445    if (!item) return NULL;
 446    elm_widget_item_del_pre_hook_set(item, _item_del_pre_hook);
 447    item->itc = itc;
 448    item->l = eina_list_append(item->l, item);
 449    elm_widget_item_data_set(item, data);
 450
 451    wd->items = eina_list_merge(wd->items, item->l);
 452
 453    if (!wd->current) elm_slideshow_item_show((Elm_Object_Item *)item);
 454
 455    return (Elm_Object_Item *)item;
 456 }
 457
 458 EAPI Elm_Object_Item*
 459 elm_slideshow_item_sorted_insert(Evas_Object *obj, const Elm_Slideshow_Item_Class *itc, const void *data, Eina_Compare_Cb func)
 460 {
 461    Elm_Slideshow_Item *item;
 462    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 463    Widget_Data *wd = elm_widget_data_get(obj);
 464    if (!wd) return NULL;
 465
 466    item = elm_widget_item_new(obj, Elm_Slideshow_Item);
 467    if (!item) return NULL;
 468    elm_widget_item_del_pre_hook_set(item, _item_del_pre_hook);
 469    item->itc = itc;
 470    item->l = eina_list_append(item->l, item);
 471    elm_widget_item_data_set(item, data);
 472
 473    wd->items = eina_list_sorted_merge(wd->items, item->l, func);
 474
 475    if (!wd->current) elm_slideshow_item_show((Elm_Object_Item *)item);
 476
 477    return (Elm_Object_Item *)item;
 478 }
 479
 480 EAPI void
 481 elm_slideshow_item_show(Elm_Object_Item *it)
 482 {
 483    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 484
 485    char buf[1024];
 486    Elm_Slideshow_Item *item, *next = NULL;
 487    Widget_Data *wd;
 488    item = (Elm_Slideshow_Item *)it;
 489    wd = elm_widget_data_get(WIDGET(item));
 490    if (!wd)  return;
 491    if (item == wd->current) return;
 492
 493    next = item;
 494    _end(WIDGET(item), WIDGET(item), NULL, NULL);
 495
 496    if (wd->timer) ecore_timer_del(wd->timer);
 497    wd->timer = NULL;
 498    if (wd->timeout > 0.0)
 499      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, WIDGET(item));
 500    _item_realize(next);
 501    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(next));
 502    snprintf(buf, sizeof(buf), "%s,next", wd->transition);
 503    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 504    wd->previous = wd->current;
 505    wd->current = next;
 506    evas_object_smart_callback_call(WIDGET(item), SIG_CHANGED, wd->current);
 507 }
 508
 509 EAPI void
 510 elm_slideshow_next(Evas_Object *obj)
 511 {
 512    char buf[1024];
 513    Elm_Slideshow_Item *next = NULL;
 514    ELM_CHECK_WIDTYPE(obj, widtype);
 515    Widget_Data *wd = elm_widget_data_get(obj);
 516
 517    if (!wd) return;
 518
 519    if (wd->current)
 520      next = _item_next_get(wd->current);
 521
 522    if ((!next) || (next == wd->current)) return;
 523
 524    _end(obj, obj, NULL, NULL);
 525
 526    if (wd->timer) ecore_timer_del(wd->timer);
 527    wd->timer = NULL;
 528    if (wd->timeout > 0.0)
 529      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, obj);
 530
 531    _item_realize(next);
 532
 533    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(next));
 534
 535    snprintf(buf, sizeof(buf), "%s,next", wd->transition);
 536    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 537
 538    wd->previous = wd->current;
 539    wd->current = next;
 540    evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
 541 }
 542
 543 EAPI void
 544 elm_slideshow_previous(Evas_Object *obj)
 545 {
 546    char buf[1024];
 547    Elm_Slideshow_Item *prev = NULL;
 548    ELM_CHECK_WIDTYPE(obj, widtype);
 549    Widget_Data *wd = elm_widget_data_get(obj);
 550
 551    if (!wd) return;
 552
 553    if (wd->current)
 554      prev = _item_prev_get(wd->current);
 555
 556    if ((!prev) ||  (prev == wd->current)) return;
 557
 558    _end(obj, obj, NULL, NULL);
 559
 560    if (wd->timer) ecore_timer_del(wd->timer);
 561    wd->timer = NULL;
 562    if (wd->timeout > 0.0)
 563      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, obj);
 564
 565    _item_realize(prev);
 566
 567    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(prev));
 568
 569    snprintf(buf, 1024, "%s,previous", wd->transition);
 570    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 571
 572    wd->previous = wd->current;
 573    wd->current = prev;
 574    evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
 575 }
 576
 577 EAPI const Eina_List *
 578 elm_slideshow_transitions_get(const Evas_Object *obj)
 579 {
 580    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 581    Widget_Data *wd = elm_widget_data_get(obj);
 582    if (!wd) return NULL;
 583    return wd->transitions;
 584 }
 585
 586 EAPI const Eina_List *
 587 elm_slideshow_layouts_get(const Evas_Object *obj)
 588 {
 589    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 590    Widget_Data *wd = elm_widget_data_get(obj);
 591    if (!wd) return NULL;
 592    return wd->layout.list;
 593 }
 594
 595 EAPI void
 596 elm_slideshow_transition_set(Evas_Object *obj, const char *transition)
 597 {
 598    ELM_CHECK_WIDTYPE(obj, widtype);
 599    Widget_Data *wd = elm_widget_data_get(obj);
 600    if (!wd) return;
 601    eina_stringshare_replace(&wd->transition, transition);
 602 }
 603
 604 EAPI const char *
 605 elm_slideshow_transition_get(const Evas_Object *obj)
 606 {
 607    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 608    Widget_Data *wd = elm_widget_data_get(obj);
 609    if (!wd) return NULL;
 610    return wd->transition;
 611 }
 612
 613 EAPI void
 614 elm_slideshow_timeout_set(Evas_Object *obj, double timeout)
 615 {
 616    ELM_CHECK_WIDTYPE(obj, widtype);
 617    Widget_Data *wd = elm_widget_data_get(obj);
 618    if (!wd) return;
 619    wd->timeout = timeout;
 620    if (wd->timer) ecore_timer_del(wd->timer);
 621    wd->timer = NULL;
 622    if (timeout > 0.0)
 623      wd->timer = ecore_timer_add(timeout, _timer_cb, obj);
 624 }
 625
 626 EAPI double
 627 elm_slideshow_timeout_get(const Evas_Object *obj)
 628 {
 629    ELM_CHECK_WIDTYPE(obj, widtype) -1.0;
 630    Widget_Data *wd = elm_widget_data_get(obj);
 631    if (!wd) return -1.0;
 632    return wd->timeout;
 633 }
 634
 635 EAPI void
 636 elm_slideshow_loop_set(Evas_Object *obj, Eina_Bool loop)
 637 {
 638    ELM_CHECK_WIDTYPE(obj, widtype);
 639    Widget_Data *wd = elm_widget_data_get(obj);
 640    if (!wd) return;
 641    wd->loop = loop;
 642 }
 643
 644 EAPI const char *
 645 elm_slideshow_layout_get(const Evas_Object *obj)
 646 {
 647    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 648    Widget_Data *wd = elm_widget_data_get(obj);
 649    if (!wd) return EINA_FALSE;
 650    return wd->layout.current;
 651 }
 652
 653 EAPI void
 654 elm_slideshow_layout_set(Evas_Object *obj, const char *layout)
 655 {
 656    char buf[PATH_MAX];
 657    ELM_CHECK_WIDTYPE(obj, widtype);
 658    Widget_Data *wd = elm_widget_data_get(obj);
 659    if (!wd) return;
 660
 661    wd->layout.current = layout;
 662    snprintf(buf, sizeof(buf), "layout,%s", layout);
 663    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 664 }
 665
 666 EAPI Eina_Bool
 667 elm_slideshow_loop_get(const Evas_Object *obj)
 668 {
 669    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 670    Widget_Data *wd = elm_widget_data_get(obj);
 671    if (!wd) return EINA_FALSE;
 672    return wd->loop;
 673 }
 674
 675 EAPI void
 676 elm_slideshow_clear(Evas_Object *obj)
 677 {
 678    Elm_Slideshow_Item *item;
 679    ELM_CHECK_WIDTYPE(obj, widtype);
 680    Widget_Data *wd = elm_widget_data_get(obj);
 681    if (!wd) return;
 682    wd->previous = NULL;
 683    wd->current = NULL;
 684    EINA_LIST_FREE(wd->items_built, item)
 685      {
 686         if (item->itc->func.del)
 687           item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 688      }
 689
 690    EINA_LIST_FREE(wd->items, item)
 691      elm_widget_item_free(item);
 692 }
 693
 694 EAPI const Eina_List *
 695 elm_slideshow_items_get(const Evas_Object *obj)
 696 {
 697    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 698    Widget_Data *wd = elm_widget_data_get(obj);
 699    if (!wd) return NULL;
 700    return wd->items;
 701 }
 702
 703 EAPI Elm_Object_Item *
 704 elm_slideshow_item_current_get(const Evas_Object *obj)
 705 {
 706    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 707    Widget_Data *wd = elm_widget_data_get(obj);
 708    if (!wd) return NULL;
 709    return (Elm_Object_Item *) wd->current;
 710 }
 711
 712 EAPI Evas_Object *
 713 elm_slideshow_item_object_get(const Elm_Object_Item * it)
 714 {
 715    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 716    return VIEW(it);
 717 }
 718
 719 EAPI int
 720 elm_slideshow_cache_before_get(const Evas_Object *obj)
 721 {
 722    ELM_CHECK_WIDTYPE(obj, widtype) -1;
 723    Widget_Data *wd = elm_widget_data_get(obj);
 724    if (!wd) return -1;
 725    return wd->count_item_pre_before;
 726 }
 727
 728 EAPI void
 729 elm_slideshow_cache_before_set(Evas_Object *obj, int count)
 730 {
 731    ELM_CHECK_WIDTYPE(obj, widtype);
 732    Widget_Data *wd = elm_widget_data_get(obj);
 733    if (!wd) return;
 734    if (count < 0) count = 0;
 735    wd->count_item_pre_before = count;
 736 }
 737
 738 EAPI int
 739 elm_slideshow_cache_after_get(const Evas_Object *obj)
 740 {
 741    ELM_CHECK_WIDTYPE(obj, widtype) -1;
 742    Widget_Data *wd = elm_widget_data_get(obj);
 743    if (!wd) return -1;
 744    return wd->count_item_pre_after;
 745 }
 746
 747 EAPI void
 748 elm_slideshow_cache_after_set(Evas_Object *obj, int count)
 749 {
 750    ELM_CHECK_WIDTYPE(obj, widtype);
 751    Widget_Data *wd = elm_widget_data_get(obj);
 752    if (!wd) return;
 753    if (count < 0) count = 0;
 754    wd->count_item_pre_after = count;
 755 }
 756
 757 EAPI Elm_Object_Item *
 758 elm_slideshow_item_nth_get(const Evas_Object *obj, unsigned int nth)
 759 {
 760    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 761    Widget_Data *wd = elm_widget_data_get(obj);
 762    if (!wd) return NULL;
 763    return eina_list_nth(wd->items, nth);
 764 }
 765
 766 EAPI unsigned int
 767 elm_slideshow_count_get(const Evas_Object *obj)
 768 {
 769    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 770    Widget_Data *wd = elm_widget_data_get(obj);
 771    if (!wd) return 0;
 772    return eina_list_count(wd->items);
 773 }