/**
* @defgroup Slideshow Slideshow
+ * @ingroup Elementary
*
* This object display a list of object (generally a list of images) and some actions like
* next/previous are used to navigate. The animations are defined in the theme,
*
* The slideshow use 2 callbacks to create and delete the objects displayed. When an item
* is displayed the function itc->func.get() is called. This function should create the object,
- * for example the object can be an evas_object_image or a photocam. When a object is no more
+ * for example the object can be an evas_object_image or a photocam. When an object is no more
* displayed the function itc->func.del() is called, the user can delete the dana associated to the item.
*
* Signals that you can add callbacks for are:
Eina_List *transitions;
const char *transition;
+ int count_item_pre_before;
+ int count_item_pre_after;
Ecore_Timer *timer;
double timeout;
Eina_Bool loop:1;
static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
Evas_Callback_Type type, void *event_info);
+static const char SIG_CHANGED[] = "changed";
+
+static const Evas_Smart_Cb_Description _signals[] = {
+ {SIG_CHANGED, ""},
+ {NULL, NULL}
+};
+
static Eina_Bool
_event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
{
{
Widget_Data *wd = elm_widget_data_get(item->base.widget);
Elm_Slideshow_Item* prev = eina_list_data_get(eina_list_prev(item->l));
- if((!prev) && (wd->loop))
+ if ((!prev) && (wd->loop))
prev = eina_list_data_get(eina_list_last(item->l));
return prev;
}
{
Widget_Data *wd = elm_widget_data_get(item->base.widget);
Elm_Slideshow_Item* next = eina_list_data_get(eina_list_next(item->l));
- if((!next) && (wd->loop))
+ if ((!next) && (wd->loop))
next = eina_list_data_get(wd->items);
return next;
}
-
static void
_changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
static void
_item_realize(Elm_Slideshow_Item *item)
{
- Elm_Slideshow_Item *_item;
+ Elm_Slideshow_Item *_item_prev, *_item_next;
Evas_Object *obj = item->base.widget;
Widget_Data *wd = elm_widget_data_get(obj);
+ int ac, bc, lc;
if (!wd) return;
if ((!item->base.view) && (item->itc->func.get))
wd->items_built = eina_list_demote_list(wd->items_built, item->l_built);
//pre-create previous and next item
- _item = _item_next_get(item);
- if ((_item) && (!_item->base.view) && (_item->itc->func.get))
+ ac = wd->count_item_pre_after;
+ _item_next = item;
+ bc = wd->count_item_pre_before;
+ _item_prev = item;
+ lc = eina_list_count(wd->items) - 1;
+ while (lc > 0 && ((ac > 0) || (bc > 0)))
{
- _item->base.view = _item->itc->func.get((void*)_item->base.data, obj);
- evas_object_smart_member_add(_item->base.view, obj);
- _item->l_built = eina_list_append(NULL, _item);
- wd->items_built = eina_list_merge(wd->items_built, _item->l_built);
- evas_object_hide(_item->base.view);
- }
- else if ((_item) && (_item->l_built))
- wd->items_built = eina_list_demote_list(wd->items_built, _item->l_built);
+ if (lc > 0 && ac > 0)
+ {
+ --ac;
+ --lc;
+ if (_item_next)
+ {
+ _item_next = _item_next_get(_item_next);
+ if ((_item_next)
+ && (!_item_next->base.view)
+ && (_item_next->itc->func.get))
+ {
+ _item_next->base.view =
+ _item_next->itc->func.get(
+ (void*)_item_next->base.data, obj);
+ evas_object_smart_member_add(_item_next->base.view, obj);
+ _item_next->l_built = eina_list_append(NULL, _item_next);
+ wd->items_built = eina_list_merge(wd->items_built,
+ _item_next->l_built);
+ evas_object_hide(_item_next->base.view);
+ }
+ else if (_item_next && _item_next->l_built)
+ wd->items_built =
+ eina_list_demote_list(wd->items_built,
+ _item_next->l_built);
+ }
+ }
- _item = _item_prev_get(item);
- if ((_item) && (!_item->base.view) && (_item->itc->func.get))
- {
- _item->base.view = _item->itc->func.get((void*)_item->base.data, obj);
- evas_object_smart_member_add(_item->base.view, obj);
- _item->l_built = eina_list_append(NULL, _item);
- wd->items_built = eina_list_merge(wd->items_built, _item->l_built);
- evas_object_hide(_item->base.view);
+ if (lc > 0 && bc > 0)
+ {
+ --bc;
+ --lc;
+ if (_item_prev)
+ {
+ _item_prev = _item_prev_get(_item_prev);
+ if ((_item_prev)
+ && (!_item_prev->base.view)
+ && (_item_prev->itc->func.get))
+ {
+ _item_prev->base.view =
+ _item_prev->itc->func.get(
+ (void*)_item_prev->base.data, obj);
+ evas_object_smart_member_add(_item_prev->base.view, obj);
+ _item_prev->l_built = eina_list_append(NULL, _item_prev);
+ wd->items_built = eina_list_merge(wd->items_built,
+ _item_prev->l_built);
+ evas_object_hide(_item_prev->base.view);
+ }
+ else if (_item_prev && _item_prev->l_built)
+ wd->items_built =
+ eina_list_demote_list(wd->items_built,
+ _item_prev->l_built);
+ }
+ }
}
- else if ((_item) && (_item->l_built))
- wd->items_built = eina_list_demote_list(wd->items_built, _item->l_built);
//delete unused items
- while (eina_list_count(wd->items_built) > 3)
+ lc = wd->count_item_pre_before + wd->count_item_pre_after + 1;
+ while ((int)eina_list_count(wd->items_built) > lc)
{
- _item = eina_list_data_get(wd->items_built);
- wd->items_built = eina_list_remove_list(wd->items_built, wd->items_built);
- if(item->itc->func.del)
- item->itc->func.del((void*)item->base.data, _item->base.view);
- evas_object_del(_item->base.view);
- _item->base.view = NULL;
+ item = eina_list_data_get(wd->items_built);
+ wd->items_built = eina_list_remove_list(wd->items_built,
+ wd->items_built);
+ if (item->itc->func.del)
+ item->itc->func.del((void*)item->base.data, item->base.view);
+ evas_object_del(item->base.view);
+ item->base.view = NULL;
}
}
if (!wd) return;
item = wd->previous;
- if(item)
+ if (item)
{
edje_object_part_unswallow(NULL, item->base.view);
evas_object_hide(item->base.view);
edje_object_part_swallow(wd->slideshow, "elm.swallow.1", item->base.view);
}
-
static Eina_Bool
_timer_cb(void *data)
{
return ECORE_CALLBACK_CANCEL;
}
-
-
/**
* Add a new slideshow to the parent
*
wd->slideshow = edje_object_add(e);
_elm_theme_object_set(obj, wd->slideshow, "slideshow", "base", "default");
evas_object_smart_member_add(wd->slideshow, obj);
+ wd->count_item_pre_before = 2;
+ wd->count_item_pre_after = 2;
elm_widget_resize_object_set(obj, wd->slideshow);
evas_object_show(wd->slideshow);
evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
evas_object_event_callback_add(obj, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
+ evas_object_smart_callbacks_descriptions_set(obj, _signals);
+
_mirrored_set(obj, elm_widget_mirrored_get(obj));
_sizing_eval(obj);
return obj;
}
/**
- * Add a object in the list. The object can be a evas object image or a elm photo for example.
+ * Add an object in the list. The object can be a evas object image or a elm photo for example.
*
* @param obj The slideshow object
* @aram itc Callbacks used to create the object and delete the data associated when the item is deleted.
}
/**
+ * Insert an object in the list. The object can be a evas object image or a elm photo for example.
+ *
+ * @param obj The slideshow object
+ * @aram itc Callbacks used to create the object and delete the data associated when the item is deleted.
+ * @param data Data used by the user to identified the item
+ * @param func The function to compare data
+ * @return Returns The slideshow item
+ *
+ * @ingroup Slideshow
+ */
+EAPI Elm_Slideshow_Item*
+elm_slideshow_item_sorted_insert(Evas_Object *obj, const Elm_Slideshow_Item_Class *itc, const void *data, Eina_Compare_Cb func)
+{
+ Elm_Slideshow_Item *item;
+ ELM_CHECK_WIDTYPE(obj, widtype) NULL;
+ Widget_Data *wd = elm_widget_data_get(obj);
+
+ if (!wd) return NULL;
+ item = elm_widget_item_new(obj, Elm_Slideshow_Item);
+ item->base.data = data;
+ item->itc = itc;
+ item->l = eina_list_append(item->l, item);
+
+ wd->items = eina_list_sorted_merge(wd->items, item->l, func);
+
+ if (!wd->current) elm_slideshow_show(item);
+
+ return item;
+}
+
+/**
* Go to the item
*
* @param obj The slideshow object
edje_object_signal_emit(wd->slideshow, buf, "slideshow");
wd->previous = wd->current;
wd->current = next;
- evas_object_smart_callback_call(item->base.widget, "changed", wd->current);
+ evas_object_smart_callback_call(item->base.widget, SIG_CHANGED, wd->current);
}
/**
wd->previous = wd->current;
wd->current = next;
- evas_object_smart_callback_call(obj, "changed", wd->current);
+ evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
}
/**
wd->previous = wd->current;
wd->current = prev;
- evas_object_smart_callback_call(obj, "changed", wd->current);
+ evas_object_smart_callback_call(obj, SIG_CHANGED, wd->current);
}
/**
}
}
-
/**
* Delete the item
*
return wd->items;
}
-
/**
* Returns the current item displayed
*
ELM_WIDGET_ITEM_WIDTYPE_CHECK_OR_RETURN(item, NULL);
return elm_widget_item_data_get(item);
}
+
+/**
+ * Returns max amount of cached items before current
+ *
+ * @param obj The slideshow object
+ * @return Returns max amount of cached items
+ *
+ * @ingroup Slideshow
+ */
+EAPI int
+elm_slideshow_cache_before_get(const Evas_Object *obj)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype) -1;
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return -1;
+ return wd->count_item_pre_before;
+}
+
+/**
+ * Set max amount of cached items before current
+ *
+ * @param obj The slideshow object
+ * @param count Max amount of cached items
+ *
+ * @ingroup Slideshow
+ */
+EAPI void
+elm_slideshow_cache_before_set(Evas_Object *obj, int count)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype);
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return;
+ if (count < 0) count = 0;
+ wd->count_item_pre_before = count;
+}
+
+/**
+ * Returns max amount of cached items after current
+ *
+ * @param obj The slideshow object
+ * @return Returns max amount of cached items
+ *
+ * @ingroup Slideshow
+ */
+EAPI int
+elm_slideshow_cache_after_get(const Evas_Object *obj)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype) -1;
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return -1;
+ return wd->count_item_pre_after;
+}
+
+/**
+ * Set max amount of cached items after current
+ *
+ * @param obj The slideshow object
+ * @param count max amount of cached items
+ *
+ * @ingroup Slideshow
+ */
+EAPI void
+elm_slideshow_cache_after_set(Evas_Object *obj, int count)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype);
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return;
+ if (count < 0) count = 0;
+ wd->count_item_pre_after = count;
+}
+
+/**
+ * Get the nth item of the slideshow
+ *
+ * @param obj The slideshow object
+ * @param nth The number of the element (0 being first)
+ * @return The item stored in slideshow at position required
+ *
+ * @ingroup Slideshow
+ */
+EAPI Elm_Slideshow_Item *
+elm_slideshow_item_nth_get(const Evas_Object *obj, unsigned int nth)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype) NULL;
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return NULL;
+ return eina_list_nth(wd->items, nth);
+}
+
+/**
+ * Get count of items stored in slideshow
+ *
+ * @param obj The slideshow object
+ * @return The count of items
+ *
+ * @ingroup Slideshow
+ */
+EAPI unsigned int
+elm_slideshow_count_get(const Evas_Object *obj)
+{
+ ELM_CHECK_WIDTYPE(obj, widtype) 0;
+ Widget_Data *wd = elm_widget_data_get(obj);
+ if (!wd) return 0;
+ return eina_list_count(wd->items);
+}
projects / framework / uifw / elementary.git / blobdiff