forked from enlightenment/efl
327 lines
10 KiB
C
327 lines
10 KiB
C
/**
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* Add a new box to the parent
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*
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* By default, the box will be in vertical mode and non-homogeneous.
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*
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* @param parent The parent object
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* @return The new object or NULL if it cannot be created
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*
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* @ingroup Box
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*/
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EAPI Evas_Object *elm_box_add(Evas_Object *parent);
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/**
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* Set the horizontal orientation
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*
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* By default, box object arranges their contents vertically from top to
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* bottom.
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* By calling this function with @p horizontal as EINA_TRUE, the box will
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* become horizontal, arranging contents from left to right.
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*
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* @note This flag is ignored if a custom layout function is set.
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*
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* @param obj The box object
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* @param horizontal The horizontal flag (EINA_TRUE = horizontal,
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* EINA_FALSE = vertical)
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*
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* @ingroup Box
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*/
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EAPI void elm_box_horizontal_set(Evas_Object *obj, Eina_Bool horizontal);
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/**
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* Get the horizontal orientation
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*
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* @param obj The box object
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* @return EINA_TRUE if the box is set to horizontal mode, EINA_FALSE otherwise
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*/
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EAPI Eina_Bool elm_box_horizontal_get(const Evas_Object *obj);
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/**
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* Set the box to arrange its children homogeneously
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*
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* If enabled, homogeneous layout makes all items the same size, according
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* to the size of the largest of its children.
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*
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* @note This flag is ignored if a custom layout function is set.
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*
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* @param obj The box object
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* @param homogeneous The homogeneous flag
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*
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* @ingroup Box
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*/
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EAPI void elm_box_homogeneous_set(Evas_Object *obj, Eina_Bool homogeneous);
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/**
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* Get whether the box is using homogeneous mode or not
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*
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* @param obj The box object
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* @return EINA_TRUE if it's homogeneous, EINA_FALSE otherwise
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*
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* @ingroup Box
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*/
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EAPI Eina_Bool elm_box_homogeneous_get(const Evas_Object *obj);
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/**
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* Add an object to the beginning of the pack list
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*
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* Pack @p subobj into the box @p obj, placing it first in the list of
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* children objects. The actual position the object will get on screen
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* depends on the layout used. If no custom layout is set, it will be at
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* the top or left, depending if the box is vertical or horizontal,
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* respectively.
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*
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* @param obj The box object
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* @param subobj The object to add to the box
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*
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* @see elm_box_pack_end()
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* @see elm_box_pack_before()
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* @see elm_box_pack_after()
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* @see elm_box_unpack()
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* @see elm_box_unpack_all()
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* @see elm_box_clear()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_pack_start(Evas_Object *obj, Evas_Object *subobj);
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/**
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* Add an object at the end of the pack list
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*
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* Pack @p subobj into the box @p obj, placing it last in the list of
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* children objects. The actual position the object will get on screen
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* depends on the layout used. If no custom layout is set, it will be at
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* the bottom or right, depending if the box is vertical or horizontal,
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* respectively.
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*
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* @param obj The box object
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* @param subobj The object to add to the box
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*
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* @see elm_box_pack_start()
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* @see elm_box_pack_before()
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* @see elm_box_pack_after()
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* @see elm_box_unpack()
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* @see elm_box_unpack_all()
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* @see elm_box_clear()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_pack_end(Evas_Object *obj, Evas_Object *subobj);
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/**
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* Adds an object to the box before the indicated object
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*
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* This will add the @p subobj to the box indicated before the object
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* indicated with @p before. If @p before is not already in the box, results
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* are undefined. Before means either to the left of the indicated object or
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* above it depending on orientation.
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*
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* @param obj The box object
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* @param subobj The object to add to the box
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* @param before The object before which to add it
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*
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* @see elm_box_pack_start()
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* @see elm_box_pack_end()
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* @see elm_box_pack_after()
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* @see elm_box_unpack()
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* @see elm_box_unpack_all()
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* @see elm_box_clear()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_pack_before(Evas_Object *obj, Evas_Object *subobj, Evas_Object *before);
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/**
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* Adds an object to the box after the indicated object
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*
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* This will add the @p subobj to the box indicated after the object
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* indicated with @p after. If @p after is not already in the box, results
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* are undefined. After means either to the right of the indicated object or
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* below it depending on orientation.
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*
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* @param obj The box object
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* @param subobj The object to add to the box
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* @param after The object after which to add it
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*
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* @see elm_box_pack_start()
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* @see elm_box_pack_end()
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* @see elm_box_pack_before()
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* @see elm_box_unpack()
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* @see elm_box_unpack_all()
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* @see elm_box_clear()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_pack_after(Evas_Object *obj, Evas_Object *subobj, Evas_Object *after);
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/**
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* Clear the box of all children
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*
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* Remove all the elements contained by the box, deleting the respective
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* objects.
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*
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* @param obj The box object
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*
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* @see elm_box_unpack()
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* @see elm_box_unpack_all()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_clear(Evas_Object *obj);
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/**
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* Unpack a box item
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*
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* Remove the object given by @p subobj from the box @p obj without
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* deleting it.
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*
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* @param obj The box object
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* @param subobj The object to unpack
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*
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* @see elm_box_unpack_all()
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* @see elm_box_clear()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_unpack(Evas_Object *obj, Evas_Object *subobj);
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/**
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* Remove all items from the box, without deleting them
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*
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* Clear the box from all children, but don't delete the respective objects.
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* If no other references of the box children exist, the objects will never
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* be deleted, and thus the application will leak the memory. Make sure
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* when using this function that you hold a reference to all the objects
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* in the box @p obj.
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*
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* @param obj The box object
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*
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* @see elm_box_clear()
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* @see elm_box_unpack()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_unpack_all(Evas_Object *obj);
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/**
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* Set the layout defining function to be used by the box
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*
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* Whenever anything changes that requires the box in @p obj to recalculate
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* the size and position of its elements, the function @p cb will be called
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* to determine what the layout of the children will be.
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*
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* Once a custom function is set, everything about the children layout
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* is defined by it. The flags set by elm_box_horizontal_set() and
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* elm_box_homogeneous_set() no longer have any meaning, and the values
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* given by elm_box_padding_set() and elm_box_align_set() are up to this
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* layout function to decide if they are used and how. These last two
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* will be found in the @c priv parameter, of type @c Evas_Object_Box_Data,
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* passed to @p cb. The @c Evas_Object the function receives is not the
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* Elementary widget, but the internal Evas Box it uses, so none of the
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* functions described here can be used on it.
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*
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* Any of the layout functions in @c Evas can be used here, as well as the
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* special elm_box_layout_transition().
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*
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* The final @p data argument received by @p cb is the same @p data passed
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* here, and the @p free_data function will be called to free it
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* whenever the box is destroyed or another layout function is set.
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*
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* Setting @p cb to NULL will revert back to the default layout function.
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*
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* @param obj The box object
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* @param cb The callback function used for layout
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* @param data Data that will be passed to layout function
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* @param free_data Function called to free @p data
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*
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* @see elm_box_layout_transition()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_layout_set(Evas_Object *obj, Evas_Object_Box_Layout cb, const void *data, Ecore_Cb free_data);
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/**
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* Retrieve a list of the objects packed into the box
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*
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* Returns a new @c Eina_List with a pointer to @c Evas_Object in its nodes.
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* The order of the list corresponds to the packing order the box uses.
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*
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* You must free this list with eina_list_free() once you are done with it.
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*
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* @param obj The box object
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*
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* @ingroup Box
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*/
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EAPI Eina_List *elm_box_children_get(const Evas_Object *obj);
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/**
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* Set the space (padding) between the box's elements.
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*
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* Extra space in pixels that will be added between a box child and its
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* neighbors after its containing cell has been calculated. This padding
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* is set for all elements in the box, besides any possible padding that
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* individual elements may have through their size hints.
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*
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* @param obj The box object
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* @param horizontal The horizontal space between elements
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* @param vertical The vertical space between elements
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*
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* @ingroup Box
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*/
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EAPI void elm_box_padding_set(Evas_Object *obj, Evas_Coord horizontal, Evas_Coord vertical);
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/**
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* Get the space (padding) between the box's elements.
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*
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* @param obj The box object
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* @param horizontal The horizontal space between elements
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* @param vertical The vertical space between elements
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*
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* @see elm_box_padding_set()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_padding_get(const Evas_Object *obj, Evas_Coord *horizontal, Evas_Coord *vertical);
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/**
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* Set the alignment of the whole bounding box of contents.
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*
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* Sets how the bounding box containing all the elements of the box, after
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* their sizes and position has been calculated, will be aligned within
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* the space given for the whole box widget.
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*
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* @param obj The box object
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* @param horizontal The horizontal alignment of elements
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* @param vertical The vertical alignment of elements
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*
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* @ingroup Box
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*/
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EAPI void elm_box_align_set(Evas_Object *obj, double horizontal, double vertical);
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/**
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* Get the alignment of the whole bounding box of contents.
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*
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* @param obj The box object
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* @param horizontal The horizontal alignment of elements
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* @param vertical The vertical alignment of elements
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*
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* @see elm_box_align_set()
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*
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* @ingroup Box
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*/
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EAPI void elm_box_align_get(const Evas_Object *obj, double *horizontal, double *vertical);
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/**
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* Force the box to recalculate its children packing.
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*
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* If any children was added or removed, box will not calculate the
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* values immediately rather leaving it to the next main loop
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* iteration. While this is great as it would save lots of
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* recalculation, whenever you need to get the position of a just
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* added item you must force recalculate before doing so.
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*
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* @param obj The box object.
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*
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* @ingroup Box
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*/
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EAPI void elm_box_recalculate(Evas_Object *obj);
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