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         const char *current;
  38         Eina_List *list; //list of const char *
  39    } layout;
  40 };
  41
  42 static const char *widtype = NULL;
  43 static void _del_pre_hook(Evas_Object *obj);
  44 static void _del_hook(Evas_Object *obj);
  45 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  46 static void _theme_hook(Evas_Object *obj);
  47 static void _sizing_eval(Evas_Object *obj);
  48 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  49 static Eina_Bool _timer_cb(void *data);
  50 static void _on_focus_hook(void *data, Evas_Object *obj);
  51 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  52                              Evas_Callback_Type type, void *event_info);
  53
  54 static const char SIG_CHANGED[] = "changed";
  55 static const char SIG_TRANSITION_END[] = "transition,end";
  56
  57 static const Evas_Smart_Cb_Description _signals[] = {
  58    {SIG_CHANGED, ""},
  59    {SIG_TRANSITION_END, ""},
  60    {NULL, NULL}
  61 };
  62
  63 static Eina_Bool
  64 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
  65 {
  66    if (type != EVAS_CALLBACK_KEY_DOWN) return EINA_FALSE;
  67    Evas_Event_Key_Down *ev = event_info;
  68    Widget_Data *wd = elm_widget_data_get(obj);
  69    if (!wd) return EINA_FALSE;
  70    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  71    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  72    if ((!strcmp(ev->keyname, "Left")) || (!strcmp(ev->keyname, "KP_Left")))
  73      {
  74         elm_slideshow_previous(obj);
  75         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  76         return EINA_TRUE;
  77      }
  78    if ((!strcmp(ev->keyname, "Right")) || (!strcmp(ev->keyname, "KP_Right")))
  79      {
  80         elm_slideshow_next(obj);
  81         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  82         return EINA_TRUE;
  83      }
  84    if ((!strcmp(ev->keyname, "Return")) ||
  85        (!strcmp(ev->keyname, "KP_Enter")) ||
  86        (!strcmp(ev->keyname, "space")))
  87      {
  88         if (wd->timeout)
  89           {
  90              if (wd->timer)
  91                {
  92                   ecore_timer_del(wd->timer);
  93                   wd->timer = NULL;
  94                }
  95              else
  96                elm_slideshow_timeout_set(obj, wd->timeout);
  97           }
  98         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  99         return EINA_TRUE;
 100      }
 101    return EINA_FALSE;
 102 }
 103
 104 static void
 105 _del_pre_hook(Evas_Object *obj)
 106 {
 107    Widget_Data *wd = elm_widget_data_get(obj);
 108    if (!wd) return;
 109    evas_object_event_callback_del_full(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 110                                        _changed_size_hints, obj);
 111 }
 112
 113 static void
 114 _del_hook(Evas_Object *obj)
 115 {
 116    const char *layout;
 117    Widget_Data *wd = elm_widget_data_get(obj);
 118    if (!wd) return;
 119    elm_slideshow_clear(obj);
 120    elm_widget_stringlist_free(wd->transitions);
 121    if (wd->timer) ecore_timer_del(wd->timer);
 122    EINA_LIST_FREE(wd->layout.list, layout)
 123       eina_stringshare_del(layout);
 124    free(wd);
 125 }
 126
 127 static void
 128 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 129 {
 130    Widget_Data *wd = elm_widget_data_get(obj);
 131    if (!wd) return;
 132    if (elm_widget_focus_get(obj))
 133      {
 134         edje_object_signal_emit(wd->slideshow, "elm,action,focus", "elm");
 135         evas_object_focus_set(wd->slideshow, EINA_TRUE);
 136      }
 137    else
 138      {
 139         edje_object_signal_emit(wd->slideshow, "elm,action,unfocus", "elm");
 140         evas_object_focus_set(wd->slideshow, EINA_FALSE);
 141      }
 142 }
 143
 144 static void
 145 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
 146 {
 147    Widget_Data *wd = elm_widget_data_get(obj);
 148    if (!wd) return;
 149    edje_object_mirrored_set(wd->slideshow, rtl);
 150 }
 151
 152 static void
 153 _theme_hook(Evas_Object *obj)
 154 {
 155    Widget_Data *wd = elm_widget_data_get(obj);
 156    if (!wd) return;
 157    _elm_widget_mirrored_reload(obj);
 158    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 159    _elm_theme_object_set(obj, wd->slideshow, "slideshow", "base", elm_widget_style_get(obj));
 160    edje_object_scale_set(wd->slideshow, elm_widget_scale_get(obj) *
 161                          _elm_config->scale);
 162    _sizing_eval(obj);
 163 }
 164
 165 static void
 166 _sizing_eval(Evas_Object *obj)
 167 {
 168    Widget_Data *wd = elm_widget_data_get(obj);
 169    Evas_Coord minw = -1, minh = -1;
 170    if (!wd) return;
 171    edje_object_size_min_calc(wd->slideshow, &minw, &minh);
 172    evas_object_size_hint_min_set(obj, minw, minh);
 173    evas_object_size_hint_max_set(obj, minw, minh);
 174 }
 175
 176
 177 static Elm_Slideshow_Item* _item_prev_get(Elm_Slideshow_Item* item)
 178 {
 179    Widget_Data *wd = elm_widget_data_get(WIDGET(item));
 180    Elm_Slideshow_Item* prev = eina_list_data_get(eina_list_prev(item->l));
 181    if ((!prev) && (wd->loop))
 182      prev = eina_list_data_get(eina_list_last(item->l));
 183    return prev;
 184 }
 185
 186 static Elm_Slideshow_Item* _item_next_get(Elm_Slideshow_Item* item)
 187 {
 188    Widget_Data *wd = elm_widget_data_get(WIDGET(item));
 189    Elm_Slideshow_Item* next = eina_list_data_get(eina_list_next(item->l));
 190    if ((!next) && (wd->loop))
 191      next = eina_list_data_get(wd->items);
 192    return next;
 193 }
 194
 195 static void
 196 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 197 {
 198    _sizing_eval(data);
 199 }
 200
 201 static void
 202 _sub_del(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 203 {
 204    ;
 205 }
 206
 207 static void
 208 _item_realize(Elm_Slideshow_Item *item)
 209 {
 210    Elm_Slideshow_Item *_item_prev, *_item_next;
 211    Evas_Object *obj = WIDGET(item);
 212    Widget_Data *wd = elm_widget_data_get(obj);
 213    int ac, bc, lc, ic = 0;
 214
 215    if (!wd) return;
 216    if ((!VIEW(item)) && (item->itc->func.get))
 217      {
 218         VIEW(item) = item->itc->func.get(elm_widget_item_data_get(item),
 219                                          obj);
 220         evas_object_smart_member_add(VIEW(item), obj);
 221         item->l_built = eina_list_append(NULL, item);
 222         wd->items_built = eina_list_merge(wd->items_built, item->l_built);
 223         evas_object_hide(VIEW(item));
 224      }
 225    else if (item->l_built)
 226      wd->items_built = eina_list_demote_list(wd->items_built, item->l_built);
 227
 228    //pre-create previous and next item
 229    ac = wd->count_item_pre_after;
 230    _item_next = item;
 231    bc = wd->count_item_pre_before;
 232    _item_prev = item;
 233    lc = eina_list_count(wd->items) - 1;
 234    while (lc > 0 && ((ac > 0) || (bc > 0)))
 235      {
 236         if (lc > 0 && ac > 0)
 237           {
 238              --ac;
 239              --lc;
 240              if (_item_next)
 241                {
 242                   _item_next = _item_next_get(_item_next);
 243                   if ((_item_next)
 244                       && (!VIEW(_item_next))
 245                       && (_item_next->itc->func.get))
 246                     {
 247                        ic++;
 248                        VIEW(_item_next) =
 249                           _item_next->itc->func.get(
 250                              elm_widget_item_data_get(_item_next), obj);
 251                        evas_object_smart_member_add(VIEW(_item_next), obj);
 252                        _item_next->l_built = eina_list_append(NULL, _item_next);
 253                        wd->items_built = eina_list_merge(wd->items_built,
 254                                                          _item_next->l_built);
 255                        evas_object_hide(VIEW(_item_next));
 256                     }
 257                   else if (_item_next && _item_next->l_built)
 258                     {
 259                        ic++;
 260                        wd->items_built =
 261                            eina_list_demote_list(wd->items_built,
 262                                              _item_next->l_built);
 263                     }
 264                }
 265           }
 266
 267         if (lc > 0 && bc > 0)
 268           {
 269              --bc;
 270              --lc;
 271              if (_item_prev)
 272                {
 273                   _item_prev = _item_prev_get(_item_prev);
 274                   if ((_item_prev)
 275                       && (!VIEW(_item_prev))
 276                       && (_item_prev->itc->func.get))
 277                     {
 278                        ic++;
 279                        VIEW(_item_prev) =
 280                           _item_prev->itc->func.get(
 281                              elm_widget_item_data_get(_item_prev), obj);
 282                        evas_object_smart_member_add(VIEW(_item_prev), obj);
 283                        _item_prev->l_built = eina_list_append(NULL, _item_prev);
 284                        wd->items_built = eina_list_merge(wd->items_built,
 285                                                          _item_prev->l_built);
 286                        evas_object_hide(VIEW(_item_prev));
 287                     }
 288                   else if (_item_prev && _item_prev->l_built)
 289                     {
 290                        ic++;
 291                        wd->items_built =
 292                            eina_list_demote_list(wd->items_built,
 293                                              _item_prev->l_built);
 294                     }
 295                }
 296           }
 297      }
 298
 299    //delete unused items
 300    lc = ic + 1;
 301    while ((int)eina_list_count(wd->items_built) > lc)
 302      {
 303         item = eina_list_data_get(wd->items_built);
 304         wd->items_built = eina_list_remove_list(wd->items_built,
 305                                                 wd->items_built);
 306         if (item->itc->func.del)
 307           item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 308         evas_object_del(VIEW(item));
 309         VIEW(item) = NULL;
 310      }
 311 }
 312
 313 static void
 314 _end(void *data, Evas_Object *obj __UNUSED__, const char *emission, const char *source __UNUSED__)
 315 {
 316    Elm_Slideshow_Item *item;
 317    Widget_Data *wd = elm_widget_data_get(data);
 318    if (!wd) return;
 319
 320    item = wd->previous;
 321    if (item)
 322      {
 323         edje_object_part_unswallow(wd->slideshow, VIEW(item));
 324         evas_object_hide(VIEW(item));
 325         wd->previous = NULL;
 326      }
 327
 328    item = wd->current;
 329    if ((!item) || (!VIEW(item))) return;
 330
 331    _item_realize(item);
 332    edje_object_part_unswallow(wd->slideshow, VIEW(item));
 333
 334    edje_object_part_swallow(wd->slideshow, "elm.swallow.1", VIEW(item));
 335    edje_object_signal_emit(wd->slideshow, "anim,end", "slideshow");
 336    if (emission != NULL)
 337      evas_object_smart_callback_call(data, SIG_TRANSITION_END, wd->current);
 338 }
 339
 340 static Eina_Bool
 341 _timer_cb(void *data)
 342 {
 343    Evas_Object *obj = data;
 344    Widget_Data *wd = elm_widget_data_get(obj);
 345    if (!wd) return ECORE_CALLBACK_CANCEL;
 346    wd->timer = NULL;
 347    elm_slideshow_next(obj);
 348    return ECORE_CALLBACK_CANCEL;
 349 }
 350
 351 EAPI Evas_Object *
 352 elm_slideshow_add(Evas_Object *parent)
 353 {
 354    Evas_Object *obj;
 355    Evas *e;
 356    Widget_Data *wd;
 357
 358    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 359
 360    ELM_SET_WIDTYPE(widtype, "slideshow");
 361    elm_widget_type_set(obj, "slideshow");
 362    elm_widget_sub_object_add(parent, obj);
 363    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 364    elm_widget_data_set(obj, wd);
 365    elm_widget_del_pre_hook_set(obj, _del_pre_hook);
 366    elm_widget_del_hook_set(obj, _del_hook);
 367    elm_widget_theme_hook_set(obj, _theme_hook);
 368    elm_widget_can_focus_set(obj, EINA_TRUE);
 369    elm_widget_event_hook_set(obj, _event_hook);
 370
 371    wd->current = NULL;
 372    wd->previous = NULL;
 373
 374    wd->slideshow = edje_object_add(e);
 375    _elm_theme_object_set(obj, wd->slideshow, "slideshow", "base", "default");
 376    evas_object_smart_member_add(wd->slideshow, obj);
 377    wd->count_item_pre_before = 2;
 378    wd->count_item_pre_after = 2;
 379    elm_widget_resize_object_set(obj, wd->slideshow);
 380    evas_object_show(wd->slideshow);
 381
 382    wd->transitions = elm_widget_stringlist_get(edje_object_data_get(wd->slideshow, "transitions"));
 383    if (eina_list_count(wd->transitions) > 0)
 384      wd->transition = eina_stringshare_add(eina_list_data_get(wd->transitions));
 385
 386    wd->layout.list = elm_widget_stringlist_get(edje_object_data_get(wd->slideshow, "layouts"));
 387    if (eina_list_count(wd->layout.list) > 0)
 388      wd->layout.current = eina_list_data_get(wd->layout.list);
 389
 390    edje_object_signal_callback_add(wd->slideshow, "end", "slideshow", _end, obj);
 391
 392    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 393    evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
 394
 395    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 396
 397    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 398    _sizing_eval(obj);
 399    return obj;
 400 }
 401
 402 EAPI Elm_Object_Item*
 403 elm_slideshow_item_add(Evas_Object *obj, const Elm_Slideshow_Item_Class *itc, const void *data)
 404 {
 405    Elm_Slideshow_Item *item;
 406    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 407    Widget_Data *wd = elm_widget_data_get(obj);
 408
 409    if (!wd) return NULL;
 410    item = elm_widget_item_new(obj, Elm_Slideshow_Item);
 411    if (!item) return NULL;
 412
 413    item->itc = itc;
 414    item->l = eina_list_append(item->l, item);
 415    elm_widget_item_data_set(item, data);
 416
 417    wd->items = eina_list_merge(wd->items, item->l);
 418
 419    if (!wd->current) elm_slideshow_show((Elm_Object_Item *) item);
 420
 421    return (Elm_Object_Item *) item;
 422 }
 423
 424 EAPI Elm_Object_Item*
 425 elm_slideshow_item_sorted_insert(Evas_Object *obj, const Elm_Slideshow_Item_Class *itc, const void *data, Eina_Compare_Cb func)
 426 {
 427    Elm_Slideshow_Item *item;
 428    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 429    Widget_Data *wd = elm_widget_data_get(obj);
 430    if (!wd) return NULL;
 431
 432    item = elm_widget_item_new(obj, Elm_Slideshow_Item);
 433    if (!item) return NULL;
 434
 435    item->itc = itc;
 436    item->l = eina_list_append(item->l, item);
 437    elm_widget_item_data_set(item, data);
 438
 439    wd->items = eina_list_sorted_merge(wd->items, item->l, func);
 440
 441    if (!wd->current) elm_slideshow_show((Elm_Object_Item *) item);
 442
 443    return (Elm_Object_Item *) item;
 444 }
 445
 446 EAPI void
 447 elm_slideshow_show(Elm_Object_Item *it)
 448 {
 449    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 450
 451    char buf[1024];
 452    Elm_Slideshow_Item *item, *next = NULL;
 453    Widget_Data *wd;
 454    item = (Elm_Slideshow_Item *) it;
 455    wd = elm_widget_data_get(WIDGET(item));
 456    if (!wd)  return;
 457    if (item == wd->current) return;
 458
 459    next = item;
 460    _end(WIDGET(item), WIDGET(item), NULL, NULL);
 461
 462    if (wd->timer) ecore_timer_del(wd->timer);
 463    if (wd->timeout > 0.0)
 464      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, WIDGET(item));
 465    _item_realize(next);
 466    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(next));
 467    snprintf(buf, sizeof(buf), "%s,next", wd->transition);
 468    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 469    wd->previous = wd->current;
 470    wd->current = next;
 471    evas_object_smart_callback_call(WIDGET(item), SIG_CHANGED, wd->current);
 472 }
 473
 474 EAPI void
 475 elm_slideshow_next(Evas_Object *obj)
 476 {
 477    char buf[1024];
 478    Elm_Slideshow_Item *next = NULL;
 479    ELM_CHECK_WIDTYPE(obj, widtype);
 480    Widget_Data *wd = elm_widget_data_get(obj);
 481
 482    if (!wd) return;
 483
 484    if (wd->current)
 485      next = _item_next_get(wd->current);
 486
 487    if ((!next) || (next == wd->current)) return;
 488
 489    _end(obj, obj, NULL, NULL);
 490
 491    if (wd->timer) ecore_timer_del(wd->timer);
 492    if (wd->timeout > 0.0)
 493      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, obj);
 494
 495    _item_realize(next);
 496
 497    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(next));
 498
 499    snprintf(buf, sizeof(buf), "%s,next", wd->transition);
 500    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 501
 502    wd->previous = wd->current;
 503    wd->current = next;
 504    evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
 505 }
 506
 507 EAPI void
 508 elm_slideshow_previous(Evas_Object *obj)
 509 {
 510    char buf[1024];
 511    Elm_Slideshow_Item *prev = NULL;
 512    ELM_CHECK_WIDTYPE(obj, widtype);
 513    Widget_Data *wd = elm_widget_data_get(obj);
 514
 515    if (!wd) return;
 516
 517    if (wd->current)
 518      prev = _item_prev_get(wd->current);
 519
 520    if ((!prev) ||  (prev == wd->current)) return;
 521
 522    _end(obj, obj, NULL, NULL);
 523
 524    if (wd->timer) ecore_timer_del(wd->timer);
 525    if (wd->timeout > 0.0)
 526      wd->timer = ecore_timer_add(wd->timeout, _timer_cb, obj);
 527
 528    _item_realize(prev);
 529
 530    edje_object_part_swallow(wd->slideshow, "elm.swallow.2", VIEW(prev));
 531
 532    snprintf(buf, 1024, "%s,previous", wd->transition);
 533    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 534
 535    wd->previous = wd->current;
 536    wd->current = prev;
 537    evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
 538 }
 539
 540 EAPI const Eina_List *
 541 elm_slideshow_transitions_get(const Evas_Object *obj)
 542 {
 543    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 544    Widget_Data *wd = elm_widget_data_get(obj);
 545    if (!wd) return NULL;
 546    return wd->transitions;
 547 }
 548
 549 EAPI const Eina_List *
 550 elm_slideshow_layouts_get(const Evas_Object *obj)
 551 {
 552    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 553    Widget_Data *wd = elm_widget_data_get(obj);
 554    if (!wd) return NULL;
 555    return wd->layout.list;
 556 }
 557
 558 EAPI void
 559 elm_slideshow_transition_set(Evas_Object *obj, const char *transition)
 560 {
 561    ELM_CHECK_WIDTYPE(obj, widtype);
 562    Widget_Data *wd = elm_widget_data_get(obj);
 563    if (!wd) return;
 564    eina_stringshare_replace(&wd->transition, transition);
 565 }
 566
 567 EAPI const char *
 568 elm_slideshow_transition_get(const Evas_Object *obj)
 569 {
 570    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 571    Widget_Data *wd = elm_widget_data_get(obj);
 572    if (!wd) return NULL;
 573    return wd->transition;
 574 }
 575
 576 EAPI void
 577 elm_slideshow_timeout_set(Evas_Object *obj, double timeout)
 578 {
 579    ELM_CHECK_WIDTYPE(obj, widtype);
 580    Widget_Data *wd = elm_widget_data_get(obj);
 581    if (!wd) return;
 582    wd->timeout = timeout;
 583    if (wd->timer) ecore_timer_del(wd->timer);
 584    wd->timer = NULL;
 585    if (timeout > 0.0)
 586      wd->timer = ecore_timer_add(timeout, _timer_cb, obj);
 587 }
 588
 589 EAPI double
 590 elm_slideshow_timeout_get(const Evas_Object *obj)
 591 {
 592    ELM_CHECK_WIDTYPE(obj, widtype) -1.0;
 593    Widget_Data *wd = elm_widget_data_get(obj);
 594    if (!wd) return -1.0;
 595    return wd->timeout;
 596 }
 597
 598 EAPI void
 599 elm_slideshow_loop_set(Evas_Object *obj, Eina_Bool loop)
 600 {
 601    ELM_CHECK_WIDTYPE(obj, widtype);
 602    Widget_Data *wd = elm_widget_data_get(obj);
 603    if (!wd) return;
 604    wd->loop = loop;
 605 }
 606
 607 EAPI const char *
 608 elm_slideshow_layout_get(const Evas_Object *obj)
 609 {
 610    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 611    Widget_Data *wd = elm_widget_data_get(obj);
 612    if (!wd) return EINA_FALSE;
 613    return wd->layout.current;
 614 }
 615
 616 EAPI void
 617 elm_slideshow_layout_set(Evas_Object *obj, const char *layout)
 618 {
 619    char buf[PATH_MAX];
 620    ELM_CHECK_WIDTYPE(obj, widtype);
 621    Widget_Data *wd = elm_widget_data_get(obj);
 622    if (!wd) return;
 623
 624    wd->layout.current = layout;
 625    snprintf(buf, sizeof(buf), "layout,%s", layout);
 626    edje_object_signal_emit(wd->slideshow, buf, "slideshow");
 627 }
 628
 629 EAPI Eina_Bool
 630 elm_slideshow_loop_get(const Evas_Object *obj)
 631 {
 632    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 633    Widget_Data *wd = elm_widget_data_get(obj);
 634    if (!wd) return EINA_FALSE;
 635    return wd->loop;
 636 }
 637
 638 EAPI void
 639 elm_slideshow_clear(Evas_Object *obj)
 640 {
 641    Elm_Slideshow_Item *item;
 642    ELM_CHECK_WIDTYPE(obj, widtype);
 643    Widget_Data *wd = elm_widget_data_get(obj);
 644    if (!wd) return;
 645    wd->previous = NULL;
 646    wd->current = NULL;
 647    EINA_LIST_FREE(wd->items_built, item)
 648      {
 649         if (item->itc->func.del)
 650           item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 651         evas_object_del(VIEW(item));
 652         VIEW(item) = NULL;
 653      }
 654
 655    EINA_LIST_FREE(wd->items, item)
 656      {
 657         elm_widget_item_del(item);
 658      }
 659 }
 660
 661 EAPI void
 662 elm_slideshow_item_del(Elm_Object_Item *it)
 663 {
 664    ELM_OBJ_ITEM_CHECK_OR_RETURN(it);
 665
 666    Elm_Slideshow_Item *item = (Elm_Slideshow_Item *) it;
 667    Widget_Data *wd = elm_widget_data_get(WIDGET(item));
 668    if (!wd) return;
 669    if (wd->previous == item) wd->previous = NULL;
 670    if (wd->current == item)
 671      {
 672         Eina_List *l = eina_list_data_find_list(wd->items, item);
 673         Eina_List *l2 = eina_list_next(l);
 674         wd->current = NULL;
 675         if (!l2)
 676           {
 677              l2 = eina_list_prev(l);
 678              if (l2)
 679                elm_slideshow_show(eina_list_data_get(l2));
 680
 681           }
 682         else
 683           elm_slideshow_show(eina_list_data_get(l2));
 684      }
 685
 686    wd->items = eina_list_remove_list(wd->items, item->l);
 687    wd->items_built = eina_list_remove_list(wd->items_built, item->l_built);
 688
 689    if ((VIEW(item)) && (item->itc->func.del))
 690      item->itc->func.del(elm_widget_item_data_get(item), VIEW(item));
 691    if (VIEW(item))
 692      evas_object_del(VIEW(item));
 693    free(item);
 694 }
 695
 696 EAPI const Eina_List *
 697 elm_slideshow_items_get(const Evas_Object *obj)
 698 {
 699    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 700    Widget_Data *wd = elm_widget_data_get(obj);
 701    if (!wd) return NULL;
 702    return wd->items;
 703 }
 704
 705 EAPI Elm_Object_Item *
 706 elm_slideshow_item_current_get(const Evas_Object *obj)
 707 {
 708    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 709    Widget_Data *wd = elm_widget_data_get(obj);
 710    if (!wd) return NULL;
 711    return (Elm_Object_Item *) wd->current;
 712 }
 713
 714 EAPI Evas_Object *
 715 elm_slideshow_item_object_get(const Elm_Object_Item * it)
 716 {
 717    ELM_OBJ_ITEM_CHECK_OR_RETURN(it, NULL);
 718    return VIEW(it);
 719 }
 720
 721 EAPI void *
 722 elm_slideshow_item_data_get(const Elm_Object_Item * it)
 723 {
 724    return elm_object_item_data_get(it);
 725 }
 726
 727 EAPI int
 728 elm_slideshow_cache_before_get(const Evas_Object *obj)
 729 {
 730    ELM_CHECK_WIDTYPE(obj, widtype) -1;
 731    Widget_Data *wd = elm_widget_data_get(obj);
 732    if (!wd) return -1;
 733    return wd->count_item_pre_before;
 734 }
 735
 736 EAPI void
 737 elm_slideshow_cache_before_set(Evas_Object *obj, int count)
 738 {
 739    ELM_CHECK_WIDTYPE(obj, widtype);
 740    Widget_Data *wd = elm_widget_data_get(obj);
 741    if (!wd) return;
 742    if (count < 0) count = 0;
 743    wd->count_item_pre_before = count;
 744 }
 745
 746 EAPI int
 747 elm_slideshow_cache_after_get(const Evas_Object *obj)
 748 {
 749    ELM_CHECK_WIDTYPE(obj, widtype) -1;
 750    Widget_Data *wd = elm_widget_data_get(obj);
 751    if (!wd) return -1;
 752    return wd->count_item_pre_after;
 753 }
 754
 755 EAPI void
 756 elm_slideshow_cache_after_set(Evas_Object *obj, int count)
 757 {
 758    ELM_CHECK_WIDTYPE(obj, widtype);
 759    Widget_Data *wd = elm_widget_data_get(obj);
 760    if (!wd) return;
 761    if (count < 0) count = 0;
 762    wd->count_item_pre_after = count;
 763 }
 764
 765 EAPI Elm_Object_Item *
 766 elm_slideshow_item_nth_get(const Evas_Object *obj, unsigned int nth)
 767 {
 768    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 769    Widget_Data *wd = elm_widget_data_get(obj);
 770    if (!wd) return NULL;
 771    return eina_list_nth(wd->items, nth);
 772 }
 773
 774 EAPI unsigned int
 775 elm_slideshow_count_get(const Evas_Object *obj)
 776 {
 777    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 778    Widget_Data *wd = elm_widget_data_get(obj);
 779    if (!wd) return 0;
 780    return eina_list_count(wd->items);
 781 }