forked from enlightenment/efl
640 lines
20 KiB
C
640 lines
20 KiB
C
/**
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* @defgroup Diskselector Diskselector
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* @ingroup Elementary
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*
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* @image html diskselector_inheritance_tree.png
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* @image latex diskselector_inheritance_tree.eps
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*
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* @image html img/widget/diskselector/preview-00.png
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* @image latex img/widget/diskselector/preview-00.eps
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*
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* A diskselector is a kind of list widget. It scrolls horizontally,
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* and can contain label and icon objects. Three items are displayed
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* with the selected one in the middle.
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*
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* It can act like a circular list with round mode and labels can be
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* reduced for a defined length for side items.
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*
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* This widget implements the @b @ref elm-scrollable-interface
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* interface, so that all (non-deprecated) functions for the base @ref
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* Scroller widget also work for diskselectors.
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*
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* Some calls on the diskselector's API are marked as @b deprecated,
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* as they just wrap the scrollable widgets counterpart functions. Use
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* the ones we point you to, for each case of deprecation here,
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* instead -- eventually the deprecated ones will be discarded (next
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* major release).
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*
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* This widget emits the following signals, besides the ones sent from
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* @ref Layout:
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* @li @c "selected" - when item is selected, i.e. scroller stops.
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* @li @c "clicked" - This is called when a user clicks an item (@since 1.8)
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* @li @c "scroll,anim,start" - scrolling animation has started
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* @li @c "scroll,anim,stop" - scrolling animation has stopped
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* @li @c "scroll,drag,start" - dragging the diskselector has started
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* @li @c "scroll,drag,stop" - dragging the diskselector has stopped
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* @note The "scroll,anim,*" and "scroll,drag,*" signals are only emitted by
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* user intervention.
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*
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* Available styles for it:
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* - @c "default"
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*
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* Default content parts of the diskselector items that you can use for are:
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* @li "icon" - An icon in the diskselector item
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*
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* Default text parts of the diskselector items that you can use for are:
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* @li "default" - Label of the diskselector item
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*
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* Supported elm_object_item common APIs.
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* @li @ref elm_object_item_part_text_set
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* @li @ref elm_object_item_part_text_get
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* @li @ref elm_object_item_part_content_set
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* @li @ref elm_object_item_part_content_get
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*
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* List of examples:
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* @li @ref diskselector_example_01
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* @li @ref diskselector_example_02
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*/
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/**
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* @addtogroup Diskselector
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* @{
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*/
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#define ELM_OBJ_DISKSELECTOR_CLASS elm_obj_diskselector_class_get()
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const Eo_Class *elm_obj_diskselector_class_get(void) EINA_CONST;
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extern EAPI Eo_Op ELM_OBJ_DISKSELECTOR_BASE_ID;
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enum
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{
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ELM_OBJ_DISKSELECTOR_SUB_ID_ROUND_ENABLED_GET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_ROUND_ENABLED_SET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_SIDE_TEXT_MAX_LENGTH_GET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_SIDE_TEXT_MAX_LENGTH_SET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_CLEAR,
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ELM_OBJ_DISKSELECTOR_SUB_ID_ITEMS_GET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_ITEM_APPEND,
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ELM_OBJ_DISKSELECTOR_SUB_ID_SELECTED_ITEM_GET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_FIRST_ITEM_GET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_LAST_ITEM_GET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_DISPLAY_ITEM_NUM_SET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_DISPLAY_ITEM_NUM_GET,
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ELM_OBJ_DISKSELECTOR_SUB_ID_LAST
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};
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#define ELM_OBJ_DISKSELECTOR_ID(sub_id) (ELM_OBJ_DISKSELECTOR_BASE_ID + sub_id)
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/**
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* @def elm_obj_diskselector_round_enabled_get
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* @since 1.8
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*
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* Get a value whether round mode is enabled or not.
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*
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* @param[out] ret
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*
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* @see elm_diskselector_round_enabled_get
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*/
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#define elm_obj_diskselector_round_enabled_get(ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_ROUND_ENABLED_GET), EO_TYPECHECK(Eina_Bool *, ret)
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/**
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* @def elm_obj_diskselector_round_enabled_set
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* @since 1.8
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*
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* Enable or disable round mode.
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*
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* @param[in] enabled
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*
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* @see elm_diskselector_round_enabled_set
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*/
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#define elm_obj_diskselector_round_enabled_set(enabled) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_ROUND_ENABLED_SET), EO_TYPECHECK(Eina_Bool, enabled)
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/**
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* @def elm_obj_diskselector_side_text_max_length_get
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* @since 1.8
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*
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* Get the side labels max length.
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*
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* @param[out] ret
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*
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* @see elm_diskselector_side_text_max_length_get
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*/
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#define elm_obj_diskselector_side_text_max_length_get(ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_SIDE_TEXT_MAX_LENGTH_GET), EO_TYPECHECK(int *, ret)
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/**
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* @def elm_obj_diskselector_side_text_max_length_set
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* @since 1.8
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*
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* Set the side labels max length.
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*
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* @param[in] len
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*
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* @see elm_diskselector_side_text_max_length_set
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*/
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#define elm_obj_diskselector_side_text_max_length_set(len) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_SIDE_TEXT_MAX_LENGTH_SET), EO_TYPECHECK(int, len)
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/**
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* @def elm_obj_diskselector_clear
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* @since 1.8
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*
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* Remove all diskselector's items.
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*
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*
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* @see elm_diskselector_clear
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*/
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#define elm_obj_diskselector_clear() ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_CLEAR)
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/**
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* @def elm_obj_diskselector_items_get
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* @since 1.8
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*
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* Get a list of all the diskselector items.
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*
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* @param[out] ret
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*
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* @see elm_diskselector_items_get
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*/
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#define elm_obj_diskselector_items_get(ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_ITEMS_GET), EO_TYPECHECK(const Eina_List **, ret)
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/**
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* @def elm_obj_diskselector_item_append
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* @since 1.8
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*
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* Appends a new item to the diskselector object.
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*
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* @param[in] label
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* @param[in] icon
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* @param[in] func
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* @param[in] data
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* @param[out] ret
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*
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* @see elm_diskselector_item_append
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*/
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#define elm_obj_diskselector_item_append(label, icon, func, data, ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_ITEM_APPEND), EO_TYPECHECK(const char *, label), EO_TYPECHECK(Evas_Object *, icon), EO_TYPECHECK(Evas_Smart_Cb, func), EO_TYPECHECK(const void *, data), EO_TYPECHECK(Elm_Object_Item **, ret)
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/**
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* @def elm_obj_diskselector_selected_item_get
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* @since 1.8
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*
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* Get the selected item.
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*
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* @param[out] ret
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*
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* @see elm_diskselector_selected_item_get
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*/
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#define elm_obj_diskselector_selected_item_get(ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_SELECTED_ITEM_GET), EO_TYPECHECK(Elm_Object_Item **, ret)
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/**
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* @def elm_obj_diskselector_first_item_get
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* @since 1.8
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*
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* Get the first item of the diskselector.
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*
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* @param[out] ret
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*
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* @see elm_diskselector_first_item_get
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*/
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#define elm_obj_diskselector_first_item_get(ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_FIRST_ITEM_GET), EO_TYPECHECK(Elm_Object_Item **, ret)
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/**
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* @def elm_obj_diskselector_last_item_get
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* @since 1.8
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*
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* Get the last item of the diskselector.
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*
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* @param[out] ret
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*
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* @see elm_diskselector_last_item_get
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*/
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#define elm_obj_diskselector_last_item_get(ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_LAST_ITEM_GET), EO_TYPECHECK(Elm_Object_Item **, ret)
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/**
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* @def elm_obj_diskselector_display_item_num_set
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* @since 1.8
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*
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* Set the number of items to be displayed.
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*
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* @param[in] num
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*
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* @see elm_diskselector_display_item_num_set
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*/
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#define elm_obj_diskselector_display_item_num_set(num) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_DISPLAY_ITEM_NUM_SET), EO_TYPECHECK(int, num)
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/**
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* @def elm_obj_diskselector_display_item_num_get
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* @since 1.8
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*
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* Get the number of items in the diskselector object.
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*
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* @param[out] ret
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*
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* @see elm_diskselector_display_item_num_get
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*/
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#define elm_obj_diskselector_display_item_num_get(ret) ELM_OBJ_DISKSELECTOR_ID(ELM_OBJ_DISKSELECTOR_SUB_ID_DISPLAY_ITEM_NUM_GET), EO_TYPECHECK(int *, ret)
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/**
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* Add a new diskselector widget to the given parent Elementary
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* (container) object.
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*
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* @param parent The parent object.
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* @return a new diskselector widget handle or @c NULL, on errors.
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*
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* This function inserts a new diskselector widget on the canvas.
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*
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* @ingroup Diskselector
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*/
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EAPI Evas_Object *elm_diskselector_add(Evas_Object *parent);
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/**
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* Enable or disable round mode.
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*
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* @param obj The diskselector object.
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* @param enabled @c EINA_TRUE to enable round mode or @c EINA_FALSE to
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* disable it.
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*
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* Disabled by default. If round mode is enabled the items list will
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* work like a circular list, so when the user reaches the last item,
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* the first one will popup.
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*
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* @see elm_diskselector_round_enabled_get()
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*
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* @ingroup Diskselector
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*/
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EAPI void elm_diskselector_round_enabled_set(Evas_Object *obj, Eina_Bool enabled);
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/**
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* Get a value whether round mode is enabled or not.
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*
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* @see elm_diskselector_round_enabled_set() for details.
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*
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* @param obj The diskselector object.
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* @return @c EINA_TRUE means round mode is enabled. @c EINA_FALSE indicates
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* it's disabled. If @p obj is @c NULL, @c EINA_FALSE is returned.
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*
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* @ingroup Diskselector
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*/
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EAPI Eina_Bool elm_diskselector_round_enabled_get(const Evas_Object *obj);
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/**
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* Get the side labels max length.
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*
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* @see elm_diskselector_side_text_max_length_set() for details.
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*
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* @param obj The diskselector object.
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* @return The max length defined for side labels, or 0 if not a valid
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* diskselector.
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*
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* @ingroup Diskselector
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*/
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EAPI int elm_diskselector_side_text_max_length_get(const Evas_Object *obj);
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/**
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* Set the side labels max length.
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*
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* @param obj The diskselector object.
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* @param len The max length defined for side labels.
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*
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* Length is the number of characters of items' label that will be
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* visible when it's set on side positions. It will just crop
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* the string after defined size. E.g.:
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*
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* An item with label "January" would be displayed on side position as
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* "Jan" if max length is set to 3, or "Janu", if this property
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* is set to 4.
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*
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* When it's selected, the entire label will be displayed, except for
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* width restrictions. In this case label will be cropped and "..."
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* will be concatenated.
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*
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* Default side label max length is 3.
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*
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* This property will be applied over all items, included before or
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* later this function call.
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*
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* @ingroup Diskselector
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*/
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EAPI void elm_diskselector_side_text_max_length_set(Evas_Object *obj, int len);
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/**
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* Set the number of items to be displayed.
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*
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* @param obj The diskselector object.
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* @param num The number of items the diskselector will display.
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*
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* Default value is 3, and also it's the minimum. If @p num is less
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* than 3, it will be set to 3.
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*
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* Also, it can be set on theme, using data item @c display_item_num
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* on group "elm/diskselector/item/X", where X is style set.
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* E.g.:
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*
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* group { name: "elm/diskselector/item/X";
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* data {
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* item: "display_item_num" "5";
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* }
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*
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* @ingroup Diskselector
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*/
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EAPI void elm_diskselector_display_item_num_set(Evas_Object *obj, int num);
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/**
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* Get the number of items in the diskselector object.
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*
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* @param obj The diskselector object.
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*
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* @ingroup Diskselector
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*/
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EAPI int elm_diskselector_display_item_num_get(const Evas_Object *obj);
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/**
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* Set bouncing behaviour when the scrolled content reaches an edge.
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*
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* Tell the internal scroller object whether it should bounce or not
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* when it reaches the respective edges for each axis.
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*
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* @param obj The diskselector object.
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* @param h_bounce Whether to bounce or not in the horizontal axis.
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* @param v_bounce Whether to bounce or not in the vertical axis.
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*
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* @deprecated Use elm_scroller_bounce_set() instead.
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*
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* @see elm_scroller_bounce_set()
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*
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* @ingroup Diskselector
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*/
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EINA_DEPRECATED EAPI void elm_diskselector_bounce_set(Evas_Object *obj, Eina_Bool h_bounce, Eina_Bool v_bounce);
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/**
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* Get the bouncing behaviour of the internal scroller.
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*
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* Get whether the internal scroller should bounce when the edge of each
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* axis is reached scrolling.
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*
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* @param obj The diskselector object.
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* @param h_bounce Pointer to store the bounce state of the horizontal
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* axis.
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* @param v_bounce Pointer to store the bounce state of the vertical
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* axis.
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*
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* @deprecated Use elm_scroller_bounce_get() instead.
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*
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* @see elm_scroller_bounce_get()
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* @see elm_diskselector_bounce_set()
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*
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* @ingroup Diskselector
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*/
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EINA_DEPRECATED EAPI void elm_diskselector_bounce_get(const Evas_Object *obj, Eina_Bool *h_bounce, Eina_Bool *v_bounce);
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/**
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* Get the scrollbar policy.
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*
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* @see elm_diskselector_scroller_policy_get() for details.
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*
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* @param obj The diskselector object.
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* @param policy_h Pointer to store horizontal scrollbar policy.
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* @param policy_v Pointer to store vertical scrollbar policy.
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*
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* @deprecated Use elm_scroller_policy_get() instead.
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*
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* @see elm_scroller_policy_get()
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*
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* @ingroup Diskselector
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*/
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EINA_DEPRECATED EAPI void elm_diskselector_scroller_policy_get(const Evas_Object *obj, Elm_Scroller_Policy *policy_h, Elm_Scroller_Policy *policy_v);
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/**
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* Set the scrollbar policy.
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*
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* @param obj The diskselector object.
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* @param policy_h Horizontal scrollbar policy.
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* @param policy_v Vertical scrollbar policy.
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*
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* This sets the scrollbar visibility policy for the given
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* scroller. #ELM_SCROLLER_POLICY_AUTO means the scrollbar is made visible if
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* it is needed, and otherwise kept hidden. #ELM_SCROLLER_POLICY_ON turns
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* it on all the time, and #ELM_SCROLLER_POLICY_OFF always keeps it off.
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* This applies respectively for the horizontal and vertical scrollbars.
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*
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* The both are disabled by default, i.e., are set to #ELM_SCROLLER_POLICY_OFF.
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*
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* @deprecated Use elm_scroller_policy_set() instead.
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*
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* @see elm_scroller_policy_set()
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*
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* @ingroup Diskselector
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*/
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EINA_DEPRECATED EAPI void elm_diskselector_scroller_policy_set(Evas_Object *obj, Elm_Scroller_Policy policy_h, Elm_Scroller_Policy policy_v);
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/**
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* Remove all diskselector's items.
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*
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* @param obj The diskselector object.
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*
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* @see elm_object_item_del()
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* @see elm_diskselector_item_append()
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*
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* @ingroup Diskselector
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*/
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EAPI void elm_diskselector_clear(Evas_Object *obj);
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/**
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* Get a list of all the diskselector items.
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*
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* @param obj The diskselector object.
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* @return An @c Eina_List of diskselector items, #Elm_Object_Item,
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* or @c NULL on failure.
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*
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* @see elm_diskselector_item_append()
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* @see elm_object_item_del()
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* @see elm_diskselector_clear()
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*
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* @ingroup Diskselector
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*/
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EAPI const Eina_List *elm_diskselector_items_get(const Evas_Object *obj);
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/**
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* Appends a new item to the diskselector object.
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*
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* @param obj The diskselector object.
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* @param label The label of the diskselector item.
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* @param icon The icon object to use at left side of the item. An
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* icon can be any Evas object, but usually it is an icon created
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* with elm_icon_add().
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* @param func The function to call when the item is selected.
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* @param data The data to associate with the item for related callbacks.
|
|
*
|
|
* @return The created item or @c NULL upon failure.
|
|
*
|
|
* A new item will be created and appended to the diskselector, i.e., will
|
|
* be set as last item. Also, if there is no selected item, it will
|
|
* be selected. This will always happens for the first appended item.
|
|
*
|
|
* If no icon is set, label will be centered on item position, otherwise
|
|
* the icon will be placed at left of the label, that will be shifted
|
|
* to the right.
|
|
*
|
|
* Items created with this method can be deleted with
|
|
* elm_object_item_del().
|
|
*
|
|
* Associated @p data can be properly freed when item is deleted if a
|
|
* callback function is set with elm_object_item_del_cb_set().
|
|
*
|
|
* If a function is passed as argument, it will be called every time this item
|
|
* is selected, i.e., the user stops the diskselector with this
|
|
* item on center position. If such function isn't needed, just passing
|
|
* @c NULL as @p func is enough. The same should be done for @p data.
|
|
*
|
|
* Simple example (with no function callback or data associated):
|
|
* @code
|
|
* disk = elm_diskselector_add(win);
|
|
* ic = elm_icon_add(win);
|
|
* elm_image_file_set(ic, "path/to/image", NULL);
|
|
* elm_icon_resizable_set(ic, EINA_TRUE, EINA_TRUE);
|
|
* elm_diskselector_item_append(disk, "label", ic, NULL, NULL);
|
|
* @endcode
|
|
*
|
|
* @see elm_object_item_del()
|
|
* @see elm_diskselector_clear()
|
|
* @see elm_icon_add()
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI Elm_Object_Item *elm_diskselector_item_append(Evas_Object *obj, const char *label, Evas_Object *icon, Evas_Smart_Cb func, const void *data);
|
|
|
|
/**
|
|
* Get the selected item.
|
|
*
|
|
* @param obj The diskselector object.
|
|
* @return The selected diskselector item.
|
|
*
|
|
* The selected item can be unselected with function
|
|
* elm_diskselector_item_selected_set(), and the first item of
|
|
* diskselector will be selected.
|
|
*
|
|
* The selected item always will be centered on diskselector, with
|
|
* full label displayed, i.e., max length set to side labels won't
|
|
* apply on the selected item. More details on
|
|
* elm_diskselector_side_text_max_length_set().
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI Elm_Object_Item *elm_diskselector_selected_item_get(const Evas_Object *obj);
|
|
|
|
/**
|
|
* Set the selected state of an item.
|
|
*
|
|
* @param it The diskselector item
|
|
* @param selected The selected state
|
|
*
|
|
* This sets the selected state of the given item @p it.
|
|
* @c EINA_TRUE for selected, @c EINA_FALSE for not selected.
|
|
*
|
|
* If a new item is selected the previously selected will be unselected.
|
|
* Previously selected item can be get with function
|
|
* elm_diskselector_selected_item_get().
|
|
*
|
|
* If the item @p it is unselected, the first item of diskselector will
|
|
* be selected.
|
|
*
|
|
* Selected items will be visible on center position of diskselector.
|
|
* So if it was on another position before selected, or was invisible,
|
|
* diskselector will animate items until the selected item reaches center
|
|
* position.
|
|
*
|
|
* @see elm_diskselector_item_selected_get()
|
|
* @see elm_diskselector_selected_item_get()
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI void elm_diskselector_item_selected_set(Elm_Object_Item *it, Eina_Bool selected);
|
|
|
|
/*
|
|
* Get whether the @p item is selected or not.
|
|
*
|
|
* @param it The diskselector item.
|
|
* @return @c EINA_TRUE means item is selected. @c EINA_FALSE indicates
|
|
* it's not. If @p obj is @c NULL, @c EINA_FALSE is returned.
|
|
*
|
|
* @see elm_diskselector_selected_item_set() for details.
|
|
* @see elm_diskselector_item_selected_get()
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI Eina_Bool elm_diskselector_item_selected_get(const Elm_Object_Item *it);
|
|
|
|
/**
|
|
* Get the first item of the diskselector.
|
|
*
|
|
* @param obj The diskselector object.
|
|
* @return The first item, or @c NULL if none.
|
|
*
|
|
* The list of items follows append order. So it will return the first
|
|
* item appended to the widget that wasn't deleted.
|
|
*
|
|
* @see elm_diskselector_item_append()
|
|
* @see elm_diskselector_items_get()
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI Elm_Object_Item *elm_diskselector_first_item_get(const Evas_Object *obj);
|
|
|
|
/**
|
|
* Get the last item of the diskselector.
|
|
*
|
|
* @param obj The diskselector object.
|
|
* @return The last item, or @c NULL if none.
|
|
*
|
|
* The list of items follows append order. So it will return last first
|
|
* item appended to the widget that wasn't deleted.
|
|
*
|
|
* @see elm_diskselector_item_append()
|
|
* @see elm_diskselector_items_get()
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI Elm_Object_Item *elm_diskselector_last_item_get(const Evas_Object *obj);
|
|
|
|
/**
|
|
* Get the item before @p item in diskselector.
|
|
*
|
|
* @param it The diskselector item.
|
|
* @return The item before @p item, or @c NULL if none or on failure.
|
|
*
|
|
* The list of items follows append order. So it will return item appended
|
|
* just before @p item and that wasn't deleted.
|
|
*
|
|
* If it is the first item, @c NULL will be returned.
|
|
* First item can be get by elm_diskselector_first_item_get().
|
|
*
|
|
* @see elm_diskselector_item_append()
|
|
* @see elm_diskselector_items_get()
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI Elm_Object_Item *elm_diskselector_item_prev_get(const Elm_Object_Item *it);
|
|
|
|
/**
|
|
* Get the item after @p item in diskselector.
|
|
*
|
|
* @param it The diskselector item.
|
|
* @return The item after @p item, or @c NULL if none or on failure.
|
|
*
|
|
* The list of items follows append order. So it will return item appended
|
|
* just after @p item and that wasn't deleted.
|
|
*
|
|
* If it is the last item, @c NULL will be returned.
|
|
* Last item can be get by elm_diskselector_last_item_get().
|
|
*
|
|
* @see elm_diskselector_item_append()
|
|
* @see elm_diskselector_items_get()
|
|
*
|
|
* @ingroup Diskselector
|
|
*/
|
|
EAPI Elm_Object_Item *elm_diskselector_item_next_get(const Elm_Object_Item *it);
|
|
|
|
/**
|
|
* @}
|
|
*/
|