Modules | Typedefs | Enumerations | Functions
Generic Object Functions

Functions that manipulate generic Evas objects. More...

Modules

 Basic Object Manipulation
 Almost every evas object created will have some generic function used to manipulate it.
 
 Object Events
 Objects generate events when they are moved, resized, when their visibility change, when they are deleted and so on.
 
 Size Hints
 Objects may carry hints, so that another object that acts as a manager (see Smart Object Functions) may know how to properly position and resize its subordinate objects.
 
 Extra Object Manipulation
 Miscellaneous functions that also apply to any object, but are less used or not implemented by all objects.
 
 Finding Objects
 Functions that allows finding objects by their position, name or other properties.
 
 Object Method Interceptors
 Evas provides a way to intercept method calls.
 
 UV Mapping (Rotation, Perspective, 3D...)
 Evas allows different transformations to be applied to all kinds of objects.
 

Typedefs

typedef Eo Efl_Canvas_Object
 An Evas Object handle. More...
 
typedef Efl_Canvas_Object Evas_Object
 An Evas Object handle.
 

Enumerations

enum  Evas_Render_Op {
  EVAS_RENDER_BLEND = 0,
  EVAS_RENDER_BLEND_REL = 1,
  EVAS_RENDER_COPY = 2,
  EVAS_RENDER_COPY_REL = 3,
  EVAS_RENDER_ADD = 4,
  EVAS_RENDER_ADD_REL = 5,
  EVAS_RENDER_SUB = 6,
  EVAS_RENDER_SUB_REL = 7,
  EVAS_RENDER_TINT = 8,
  EVAS_RENDER_TINT_REL = 9,
  EVAS_RENDER_MASK = 10,
  EVAS_RENDER_MUL = 11
}
 How the object should be rendered to output. More...
 

Functions

Eina_Bool evas_object_pointer_mode_set (Efl_Canvas_Object *obj, Evas_Object_Pointer_Mode pointer_mode)
 Low-level pointer behaviour. More...
 
Evas_Object_Pointer_Mode evas_object_pointer_mode_get (const Efl_Canvas_Object *obj)
 Low-level pointer behaviour. More...
 
void evas_object_clip_set (Efl_Canvas_Object *obj, Efl_Canvas_Object *clip)
 Clip one object to another. More...
 
Efl_Canvas_Objectevas_object_clip_get (const Efl_Canvas_Object *obj)
 Get the object clipping obj (if any). More...
 
void evas_object_repeat_events_set (Efl_Canvas_Object *obj, Eina_Bool repeat)
 Set whether an Evas object is to repeat events. More...
 
Eina_Bool evas_object_repeat_events_get (const Efl_Canvas_Object *obj)
 Determine whether an object is set to repeat events. More...
 
void evas_object_focus_set (Efl_Canvas_Object *obj, Eina_Bool focus)
 Indicates that this object is the keyboard event receiver on its canvas. More...
 
Eina_Bool evas_object_focus_get (const Efl_Canvas_Object *obj)
 Indicates that this object is the keyboard event receiver on its canvas. More...
 
void evas_object_precise_is_inside_set (Efl_Canvas_Object *obj, Eina_Bool precise)
 Set whether to use precise (usually expensive) point collision detection for a given Evas object. More...
 
Eina_Bool evas_object_precise_is_inside_get (const Efl_Canvas_Object *obj)
 Determine whether an object is set to use precise point collision detection. More...
 
void evas_object_propagate_events_set (Efl_Canvas_Object *obj, Eina_Bool propagate)
 Set whether events on a smart object's member should be propagated up to its parent. More...
 
Eina_Bool evas_object_propagate_events_get (const Efl_Canvas_Object *obj)
 Retrieve whether an Evas object is set to propagate events. More...
 
void evas_object_pass_events_set (Efl_Canvas_Object *obj, Eina_Bool pass)
 Set whether an Evas object is to pass (ignore) events. More...
 
Eina_Bool evas_object_pass_events_get (const Efl_Canvas_Object *obj)
 Determine whether an object is set to pass (ignore) events. More...
 
void evas_object_anti_alias_set (Efl_Canvas_Object *obj, Eina_Bool anti_alias)
 Sets whether or not the given Evas object is to be drawn anti-aliased. More...
 
Eina_Bool evas_object_anti_alias_get (const Efl_Canvas_Object *obj)
 Retrieves whether or not the given Evas object is to be drawn anti_aliased. More...
 
Efl_Canvas_Objectevas_object_smart_parent_get (const Efl_Canvas_Object *obj)
 Gets the parent smart object of a given Evas object, if it has one. More...
 
void evas_object_paragraph_direction_set (Efl_Canvas_Object *obj, Evas_BiDi_Direction dir)
 This handles text paragraph direction of the given object. More...
 
Evas_BiDi_Direction evas_object_paragraph_direction_get (const Efl_Canvas_Object *obj)
 This handles text paragraph direction of the given object. More...
 
Eina_Bool evas_object_clipees_has (const Efl_Canvas_Object *obj)
 Test if any object is clipped by obj. More...
 
void evas_object_move (Evas_Object *obj, Evas_Coord x, Evas_Coord y)
 Move the given Evas object to the given location inside its canvas' viewport. More...
 
void evas_object_resize (Evas_Object *obj, Evas_Coord w, Evas_Coord h)
 Changes the size of the given Evas object. More...
 
Eina_Bool evas_object_visible_get (const Evas_Object *obj)
 Retrieves whether or not the given Evas object is visible.
 
void evas_object_size_hint_max_set (Evas_Object *obj, Evas_Coord w, Evas_Coord h)
 Sets the hints for an object's maximum size. More...
 
void evas_object_size_hint_max_get (const Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
 Retrieves the hints for an object's maximum size. More...
 
void evas_object_size_hint_request_set (Evas_Object *obj, Evas_Coord w, Evas_Coord h)
 Sets the hints for an object's optimum size. More...
 
void evas_object_size_hint_request_get (const Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
 Retrieves the hints for an object's optimum size. More...
 
void evas_object_size_hint_min_set (Evas_Object *obj, Evas_Coord w, Evas_Coord h)
 Sets the hints for an object's minimum size. More...
 
void evas_object_clip_unset (Evas_Object *obj)
 Disable/cease clipping on a clipped obj object. More...
 
void evas_object_size_hint_min_get (const Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
 Retrieves the hints for an object's minimum size. More...
 
void evas_object_size_hint_padding_set (Evas_Object *obj, Evas_Coord l, Evas_Coord r, Evas_Coord t, Evas_Coord b)
 Sets the hints for an object's padding space. More...
 
void evas_object_size_hint_padding_get (const Evas_Object *obj, Evas_Coord *l, Evas_Coord *r, Evas_Coord *t, Evas_Coord *b)
 Retrieves the hints for an object's padding space. More...
 
void evas_object_size_hint_weight_set (Evas_Object *obj, double x, double y)
 Sets the hints for an object's weight. More...
 
void evas_object_size_hint_weight_get (const Evas_Object *obj, double *x, double *y)
 Retrieves the hints for an object's weight. More...
 
void evas_object_size_hint_align_set (Evas_Object *obj, double x, double y)
 Sets the hints for an object's alignment. More...
 
void evas_object_size_hint_align_get (const Evas_Object *obj, double *x, double *y)
 Retrieves the hints for on object's alignment. More...
 
void evas_object_size_hint_aspect_set (Evas_Object *obj, Evas_Aspect_Control aspect, Evas_Coord w, Evas_Coord h)
 Sets the hints for an object's aspect ratio. More...
 
void evas_object_size_hint_aspect_get (const Evas_Object *obj, Evas_Aspect_Control *aspect, Evas_Coord *w, Evas_Coord *h)
 Retrieves the hints for an object's aspect ratio. More...
 
void evas_object_size_hint_display_mode_set (Evas_Object *obj, Evas_Display_Mode dispmode)
 Sets the hints for an object's disply mode,. More...
 
Evas_Display_Mode evas_object_size_hint_display_mode_get (const Evas_Object *obj)
 Retrieves the hints for an object's display mode. More...
 
void evas_object_layer_set (Evas_Object *obj, short l)
 Sets the layer of its canvas that the given object will be part of. More...
 
short evas_object_layer_get (const Evas_Object *obj)
 Retrieves the layer of its canvas that the given object is part of. More...
 
Evas_Objectevas_object_below_get (const Evas_Object *obj)
 Get the Evas object stacked right below obj. More...
 
Evas_Objectevas_object_above_get (const Evas_Object *obj)
 Get the Evas object stacked right above obj. More...
 
void evas_object_stack_below (Evas_Object *obj, Evas_Object *below)
 Stack obj immediately below below. More...
 
void evas_object_raise (Evas_Object *obj)
 Raise obj to the top of its layer. More...
 
void evas_object_stack_above (Evas_Object *obj, Evas_Object *above)
 Stack obj immediately above above. More...
 
void evas_object_lower (Evas_Object *obj)
 Lower obj to the bottom of its layer. More...
 
void evas_object_static_clip_set (Evas_Object *obj, Eina_Bool is_static_clip)
 Set a hint flag on the given Evas object that it's used as a "static clipper". More...
 
const Eina_Listevas_object_clipees_get (const Evas_Object *obj)
 Return a list of objects currently clipped by obj. More...
 
void evas_object_render_op_set (Evas_Object *obj, Evas_Render_Op render_op)
 Sets the render mode to be used for compositing the Evas object. More...
 
Evas_Render_Op evas_object_render_op_get (const Evas_Object *obj)
 Retrieves the current value of the operation used for rendering the Evas object. More...
 
Eina_Bool evas_object_static_clip_get (const Evas_Object *obj)
 Get the "static clipper" hint flag for a given Evas object. More...
 
void evas_object_scale_set (Evas_Object *obj, double scale)
 Sets the scaling factor for an Evas object. More...
 
double evas_object_scale_get (const Evas_Object *obj)
 Retrieves the scaling factor for the given Evas object. More...
 
Eina_Bool evas_object_pointer_inside_by_device_get (const Evas_Object *obj, Efl_Input_Device *dev)
 Returns whether the mouse pointer is logically inside the object. More...
 
Eina_Bool evas_object_pointer_inside_get (const Evas_Object *obj)
 Returns whether the default mouse pointer is logically inside the object. More...
 
Eina_Bool evas_object_pointer_coords_inside_get (const Evas_Object *eo_obj, int x, int y)
 Returns whether the coords are logically inside the object. More...
 
Evasevas_object_evas_get (const Eo *obj)
 Get the Evas to which this object belongs to. More...
 
void evas_object_map_set (Evas_Object *obj, const Evas_Map *map)
 Set current object transformation map. More...
 
const Evas_Map * evas_object_map_get (const Evas_Object *obj)
 Get current object transformation map. More...
 
void evas_object_map_enable_set (Evas_Object *obj, Eina_Bool enabled)
 Enable or disable the map that is set. More...
 
Eina_Bool evas_object_map_enable_get (const Evas_Object *obj)
 Whether the map is enabled or not. More...
 
void evas_object_is_frame_object_set (Efl_Canvas_Object *obj, Eina_Bool is_frame)
 If true the object belongs to the window border decorations. More...
 
Eina_Bool evas_object_is_frame_object_get (const Efl_Canvas_Object *obj)
 If true the object belongs to the window border decorations. More...
 
void evas_object_freeze_events_set (Efl_Canvas_Object *obj, Eina_Bool freeze)
 Set whether an Evas object is to freeze (discard) events. More...
 
Eina_Bool evas_object_freeze_events_get (const Efl_Canvas_Object *obj)
 Determine whether an object is set to freeze (discard) events. More...
 

Detailed Description

Functions that manipulate generic Evas objects.

All Evas displaying units are Evas objects. One handles them all by means of the handle Evas_Object. Besides Evas treats their objects equally, they have types that define their specific behavior (and individual API).

Evas comes with a set of built-in object types:

These functions apply to any Evas object, whatever type they may have.

Note
The built-in types that are most used are rectangles, text and images. In fact, with these one can create 2D interfaces of arbitrary complexity and EFL makes it easy.

Typedef Documentation

◆ Efl_Canvas_Object

An Evas Object handle.

See also
Evas_Object

Enumeration Type Documentation

◆ Evas_Render_Op

How the object should be rendered to output.

Enumerator
EVAS_RENDER_BLEND 

Default render operation: d = d*(1-sa) + s.

The object will be merged onto the bottom objects using simple alpha compositing (a over b).

EVAS_RENDER_BLEND_REL 

DEPRECATED.

d = d*(1 - sa) + s*da

EVAS_RENDER_COPY 

Copy mode, d = s.

The object's pixels will replace everything that was below, effectively hiding them.

EVAS_RENDER_COPY_REL 

DEPRECATED.

d = s*da

EVAS_RENDER_ADD 

DEPRECATED.

d = d + s

EVAS_RENDER_ADD_REL 

DEPRECATED.

d = d + s*da

EVAS_RENDER_SUB 

DEPRECATED.

d = d - s

EVAS_RENDER_SUB_REL 

DEPRECATED.

d = d - s*da

EVAS_RENDER_TINT 

DEPRECATED.

d = d*s + d*(1 - sa) + s*(1 - da)

EVAS_RENDER_TINT_REL 

DEPRECATED.

d = d*(1 - sa + s)

EVAS_RENDER_MASK 

DEPRECATED.

d = d*sa. For masking support, please use Efl.Canvas.Object.clip_set or EDC "clip_to" instead.

EVAS_RENDER_MUL 

DEPRECATED.

d = d*s

Function Documentation

◆ evas_object_pointer_mode_set()

Eina_Bool evas_object_pointer_mode_set ( Efl_Canvas_Object obj,
Evas_Object_Pointer_Mode  pointer_mode 
)

Low-level pointer behaviour.

This function has a direct effect on event callbacks related to pointers (mouse, ...).

If the value is EVAS_OBJECT_POINTER_MODE_AUTO_GRAB (default), then when mouse is pressed down over this object, events will be restricted to it as source, mouse moves, for example, will be emitted even when the pointer goes outside this objects geometry.

If the value is EVAS_OBJECT_POINTER_MODE_NO_GRAB, then events will be emitted just when inside this object area.

The default value is EVAS_OBJECT_POINTER_MODE_AUTO_GRAB. See also: Efl.Canvas.Object.pointer_mode_by_device.get and Efl.Canvas.Object.pointer_mode_by_device.set Note: This function will only set/get the mode for the default pointer.

Parameters
[in]objThe object.
[in]pointer_modeInput pointer mode
Returns
true if pointer behaviour was set, false otherwise

◆ evas_object_pointer_mode_get()

Evas_Object_Pointer_Mode evas_object_pointer_mode_get ( const Efl_Canvas_Object obj)

Low-level pointer behaviour.

This function has a direct effect on event callbacks related to pointers (mouse, ...).

If the value is EVAS_OBJECT_POINTER_MODE_AUTO_GRAB (default), then when mouse is pressed down over this object, events will be restricted to it as source, mouse moves, for example, will be emitted even when the pointer goes outside this objects geometry.

If the value is EVAS_OBJECT_POINTER_MODE_NO_GRAB, then events will be emitted just when inside this object area.

The default value is EVAS_OBJECT_POINTER_MODE_AUTO_GRAB. See also: Efl.Canvas.Object.pointer_mode_by_device.get and Efl.Canvas.Object.pointer_mode_by_device.set Note: This function will only set/get the mode for the default pointer.

Parameters
[in]objThe object.
Returns
Input pointer mode

◆ evas_object_clip_set()

void evas_object_clip_set ( Efl_Canvas_Object obj,
Efl_Canvas_Object clip 
)

Clip one object to another.

This function will clip the object obj to the area occupied by the object clip. This means the object obj will only be visible within the area occupied by the clipping object ($clip).

The color of the object being clipped will be multiplied by the color of the clipping one, so the resulting color for the former will be "RESULT = (OBJ * CLIP) / (255 * 255)", per color element (red, green, blue and alpha).

Clipping is recursive, so clipping objects may be clipped by others, and their color will in term be multiplied. You may not set up circular clipping lists (i.e. object 1 clips object 2, which clips object 1): the behavior of Evas is undefined in this case.

Objects which do not clip others are visible in the canvas as normal; those that clip one or more objects become invisible themselves, only affecting what they clip. If an object ceases to have other objects being clipped by it, it will become visible again.

The visibility of an object affects the objects that are clipped by it, so if the object clipping others is not shown (as in Efl.Gfx.Entity.visible), the objects clipped by it will not be shown either.

If obj was being clipped by another object when this function is called, it gets implicitly removed from the old clipper's domain and is made now to be clipped by its new clipper.

If clip is null, this call will disable clipping for the object i.e. its visibility and color get detached from the previous clipper. If it wasn't, this has no effect.

Note
Only rectangle and image (masks) objects can be used as clippers. Anything else will result in undefined behaviour.
Parameters
[in]objThe object.
[in]clipThe object to clip obj by.

Referenced by edje_edit_part_clip_to_set(), and edje_edit_part_del().

◆ evas_object_clip_get()

Efl_Canvas_Object* evas_object_clip_get ( const Efl_Canvas_Object obj)

Get the object clipping obj (if any).

This function returns the object clipping obj. If obj is not being clipped at all, null is returned. The object obj must be a valid Evas_Object.

Parameters
[in]objThe object.
Returns
The object to clip obj by.

Referenced by edje_edit_part_clip_to_set().

◆ evas_object_repeat_events_set()

void evas_object_repeat_events_set ( Efl_Canvas_Object obj,
Eina_Bool  repeat 
)

Set whether an Evas object is to repeat events.

If repeat is true, it will make events on obj to also be repeated for the next lower object in the objects' stack (see see Efl.Gfx.Stack.below).

If repeat is false, events occurring on obj will be processed only on it.

Parameters
[in]objThe object.
[in]repeatWhether obj is to repeat events ($true) or not ($false).

Referenced by edje_edit_part_repeat_events_set().

◆ evas_object_repeat_events_get()

Eina_Bool evas_object_repeat_events_get ( const Efl_Canvas_Object obj)

Determine whether an object is set to repeat events.

Parameters
[in]objThe object.
Returns
Whether obj is to repeat events ($true) or not ($false).

◆ evas_object_focus_set()

void evas_object_focus_set ( Efl_Canvas_Object obj,
Eina_Bool  focus 
)

Indicates that this object is the keyboard event receiver on its canvas.

Changing focus only affects where (key) input events go. There can be only one object focused at any time. If focus is true, obj will be set as the currently focused object and it will receive all keyboard events that are not exclusive key grabs on other objects. See also Efl.Canvas.Object.seat_focus_check, Efl.Canvas.Object.seat_focus_add, Efl.Canvas.Object.seat_focus_del.

Parameters
[in]objThe object.
[in]focustrue when set as focused or false otherwise.

Referenced by elm_object_focus_set(), and evas_device_add_full().

◆ evas_object_focus_get()

Eina_Bool evas_object_focus_get ( const Efl_Canvas_Object obj)

Indicates that this object is the keyboard event receiver on its canvas.

Changing focus only affects where (key) input events go. There can be only one object focused at any time. If focus is true, obj will be set as the currently focused object and it will receive all keyboard events that are not exclusive key grabs on other objects. See also Efl.Canvas.Object.seat_focus_check, Efl.Canvas.Object.seat_focus_add, Efl.Canvas.Object.seat_focus_del.

Parameters
[in]objThe object.
Returns
true when set as focused or false otherwise.

Referenced by elm_object_focus_get().

◆ evas_object_precise_is_inside_set()

void evas_object_precise_is_inside_set ( Efl_Canvas_Object obj,
Eina_Bool  precise 
)

Set whether to use precise (usually expensive) point collision detection for a given Evas object.

Use this function to make Evas treat objects' transparent areas as not belonging to it with regard to mouse pointer events. By default, all of the object's boundary rectangle will be taken in account for them.

Warning
By using precise point collision detection you'll be making Evas more resource intensive.
Parameters
[in]objThe object.
[in]preciseWhether to use precise point collision detection or not. The default value is false.

◆ evas_object_precise_is_inside_get()

Eina_Bool evas_object_precise_is_inside_get ( const Efl_Canvas_Object obj)

Determine whether an object is set to use precise point collision detection.

Parameters
[in]objThe object.
Returns
Whether to use precise point collision detection or not. The default value is false.

◆ evas_object_propagate_events_set()

void evas_object_propagate_events_set ( Efl_Canvas_Object obj,
Eina_Bool  propagate 
)

Set whether events on a smart object's member should be propagated up to its parent.

This function has no effect if obj is not a member of a smart object.

If prop is true, events occurring on this object will be propagated on to the smart object of which obj is a member. If prop is false, events occurring on this object will not be propagated on to the smart object of which obj is a member. The default value is true.

See also evas_object_repeat_events_set, evas_object_pass_events_set.

Parameters
[in]objThe object.
[in]propagateWhether to propagate events ($true) or not ($false).

Referenced by elm_scroller_propagate_events_set().

◆ evas_object_propagate_events_get()

Eina_Bool evas_object_propagate_events_get ( const Efl_Canvas_Object obj)

Retrieve whether an Evas object is set to propagate events.

See also evas_object_repeat_events_get, evas_object_pass_events_get.

Parameters
[in]objThe object.
Returns
Whether to propagate events ($true) or not ($false).

References EINA_FALSE.

Referenced by elm_scroller_propagate_events_get().

◆ evas_object_pass_events_set()

void evas_object_pass_events_set ( Efl_Canvas_Object obj,
Eina_Bool  pass 
)

Set whether an Evas object is to pass (ignore) events.

If pass is true, it will make events on obj to be ignored. They will be triggered on the next lower object (that is not set to pass events), instead (see Efl.Gfx.Stack.below).

If pass is false events will be processed on that object as normal.

See also evas_object_repeat_events_set, evas_object_propagate_events_set

Parameters
[in]objThe object.
[in]passWhether obj is to pass events ($true) or not ($false).

Referenced by edje_edit_part_mouse_events_set().

◆ evas_object_pass_events_get()

Eina_Bool evas_object_pass_events_get ( const Efl_Canvas_Object obj)

Determine whether an object is set to pass (ignore) events.

See also evas_object_repeat_events_get, evas_object_propagate_events_get.

Parameters
[in]objThe object.
Returns
Whether obj is to pass events ($true) or not ($false).

◆ evas_object_anti_alias_set()

void evas_object_anti_alias_set ( Efl_Canvas_Object obj,
Eina_Bool  anti_alias 
)

Sets whether or not the given Evas object is to be drawn anti-aliased.

Parameters
[in]objThe object.
[in]anti_aliastrue if the object is to be anti_aliased, false otherwise.

Referenced by edje_edit_part_anti_alias_set().

◆ evas_object_anti_alias_get()

Eina_Bool evas_object_anti_alias_get ( const Efl_Canvas_Object obj)

Retrieves whether or not the given Evas object is to be drawn anti_aliased.

Parameters
[in]objThe object.
Returns
true if the object is to be anti_aliased, false otherwise.

◆ evas_object_smart_parent_get()

Efl_Canvas_Object* evas_object_smart_parent_get ( const Efl_Canvas_Object obj)

Gets the parent smart object of a given Evas object, if it has one.

This can be different from Efl.Object.parent because this one is used internally for rendering and the normal parent is what the user expects to be the parent.

Parameters
[in]objThe object.
Returns
The parent smart object of obj or null.
Since
1.18

◆ evas_object_paragraph_direction_set()

void evas_object_paragraph_direction_set ( Efl_Canvas_Object obj,
Evas_BiDi_Direction  dir 
)

This handles text paragraph direction of the given object.

Even if the given object is not textblock or text, its smart child objects can inherit the paragraph direction from the given object. The default paragraph direction is inherit.

Parameters
[in]objThe object.
[in]dirParagraph direction for the given object.

◆ evas_object_paragraph_direction_get()

Evas_BiDi_Direction evas_object_paragraph_direction_get ( const Efl_Canvas_Object obj)

This handles text paragraph direction of the given object.

Even if the given object is not textblock or text, its smart child objects can inherit the paragraph direction from the given object. The default paragraph direction is inherit.

Parameters
[in]objThe object.
Returns
Paragraph direction for the given object.

◆ evas_object_clipees_has()

Eina_Bool evas_object_clipees_has ( const Efl_Canvas_Object obj)

Test if any object is clipped by obj.

Parameters
[in]objThe object.
Returns
true if any object is clipped by obj, false otherwise
Since
1.8

References EINA_FALSE.

◆ evas_object_move()

void evas_object_move ( Evas_Object obj,
Evas_Coord  x,
Evas_Coord  y 
)

Move the given Evas object to the given location inside its canvas' viewport.

Parameters
[in]xin
[in]yin

References EINA_POSITION2D.

Referenced by ecore_evas_ews_background_set().

◆ evas_object_resize()

void evas_object_resize ( Evas_Object obj,
Evas_Coord  w,
Evas_Coord  h 
)

Changes the size of the given Evas object.

Parameters
[in]win
[in]hin

References EINA_SIZE2D.

Referenced by ecore_evas_cursor_set(), and ecore_evas_ews_background_set().

◆ evas_object_size_hint_max_set()

void evas_object_size_hint_max_set ( Evas_Object obj,
Evas_Coord  w,
Evas_Coord  h 
)

Sets the hints for an object's maximum size.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Values -1 will be treated as unset hint components, when queried by managers.

Note
Smart objects (such as elementary) can have their own size hint policy. So calling this API may or may not affect the size of smart objects.
Parameters
[in]wInteger to use as the maximum width hint.
[in]hInteger to use as the maximum height hint.

References EINA_SIZE2D.

Referenced by edje_extern_object_max_size_set().

◆ evas_object_size_hint_max_get()

void evas_object_size_hint_max_get ( const Evas_Object obj,
Evas_Coord w,
Evas_Coord h 
)

Retrieves the hints for an object's maximum size.

These are hints on the maximum sizes obj should have. This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Use null pointers on the hint components you're not interested in: they'll be ignored by the function.
Parameters
[out]wInteger to use as the maximum width hint.
[out]hInteger to use as the maximum height hint.

◆ evas_object_size_hint_request_set()

void evas_object_size_hint_request_set ( Evas_Object obj,
Evas_Coord  w,
Evas_Coord  h 
)

Sets the hints for an object's optimum size.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Values 0 will be treated as unset hint components, when queried by managers.

Note
Smart objects(such as elementary) can have their own size hint policy. So calling this API may or may not affect the size of smart objects.
Parameters
[in]wInteger to use as the preferred width hint.
[in]hInteger to use as the preferred height hint.

References EINA_UNLIKELY.

◆ evas_object_size_hint_request_get()

void evas_object_size_hint_request_get ( const Evas_Object obj,
Evas_Coord w,
Evas_Coord h 
)

Retrieves the hints for an object's optimum size.

These are hints on the optimum sizes obj should have. This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Use null pointers on the hint components you're not interested in: they'll be ignored by the function.
Parameters
[out]wInteger to use as the preferred width hint.
[out]hInteger to use as the preferred height hint.

◆ evas_object_size_hint_min_set()

void evas_object_size_hint_min_set ( Evas_Object obj,
Evas_Coord  w,
Evas_Coord  h 
)

Sets the hints for an object's minimum size.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Values 0 will be treated as unset hint components, when queried by managers.

Note
Smart objects(such as elementary) can have their own size hint policy. So calling this API may or may not affect the size of smart objects.
Parameters
[in]wInteger to use as the minimum width hint.
[in]hInteger to use as the minimum height hint.

References EINA_SIZE2D.

Referenced by edje_extern_object_min_size_set().

◆ evas_object_clip_unset()

void evas_object_clip_unset ( Evas_Object obj)

Disable/cease clipping on a clipped obj object.

This function disables clipping for the object obj, if it was already clipped, i.e., its visibility and color get detached from the previous clipper. If it wasn't, this has no effect. The object obj must be a valid Evas_Object.

See also evas_object_clip_set, evas_object_clipees_get and evas_object_clip_get.

◆ evas_object_size_hint_min_get()

void evas_object_size_hint_min_get ( const Evas_Object obj,
Evas_Coord w,
Evas_Coord h 
)

Retrieves the hints for an object's minimum size.

These are hints on the minimum sizes obj should have. This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Use null pointers on the hint components you're not interested in: they'll be ignored by the function.
Parameters
[out]wInteger to use as the minimum width hint.
[out]hInteger to use as the minimum height hint.

◆ evas_object_size_hint_padding_set()

void evas_object_size_hint_padding_set ( Evas_Object obj,
Evas_Coord  l,
Evas_Coord  r,
Evas_Coord  t,
Evas_Coord  b 
)

Sets the hints for an object's padding space.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Smart objects(such as elementary) can have their own size hint policy. So calling this API may or may not affect the size of smart objects.
Parameters
[in]lInteger to specify left padding.
[in]rInteger to specify right padding.
[in]tInteger to specify top padding.
[in]bInteger to specify bottom padding.

◆ evas_object_size_hint_padding_get()

void evas_object_size_hint_padding_get ( const Evas_Object obj,
Evas_Coord l,
Evas_Coord r,
Evas_Coord t,
Evas_Coord b 
)

Retrieves the hints for an object's padding space.

Padding is extra space an object takes on each of its delimiting rectangle sides, in canvas units.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Use null pointers on the hint components you're not interested in: they'll be ignored by the function.
Parameters
[out]lInteger to specify left padding.
[out]rInteger to specify right padding.
[out]tInteger to specify top padding.
[out]bInteger to specify bottom padding.

◆ evas_object_size_hint_weight_set()

void evas_object_size_hint_weight_set ( Evas_Object obj,
double  x,
double  y 
)

Sets the hints for an object's weight.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

This is a hint on how a container object should resize a given child within its area. Containers may adhere to the simpler logic of just expanding the child object's dimensions to fit its own (see the EVAS_HINT_EXPAND helper weight macro) or the complete one of taking each child's weight hint as real weights to how much of its size to allocate for them in each axis. A container is supposed to, after normalizing the weights of its children (with weight hints), distribute the space it has to layout them by those factors – most weighted children get larger in this process than the least ones.

Note
Default weight hint values are 0.0, for both axis.
Parameters
[in]xNon-negative double value to use as horizontal weight hint.
[in]yNon-negative double value to use as vertical weight hint.

◆ evas_object_size_hint_weight_get()

void evas_object_size_hint_weight_get ( const Evas_Object obj,
double *  x,
double *  y 
)

Retrieves the hints for an object's weight.

Accepted values are zero or positive values. Some users might use this hint as a boolean, but some might consider it as a proportion, see documentation of possible users, which in Evas are the box and table smart objects.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Use null pointers on the hint components you're not interested in: they'll be ignored by the function.
If obj is invalid, then the hint components will be set with 0.0.
Parameters
[out]xNon-negative double value to use as horizontal weight hint.
[out]yNon-negative double value to use as vertical weight hint.

◆ evas_object_size_hint_align_set()

void evas_object_size_hint_align_set ( Evas_Object obj,
double  x,
double  y 
)

Sets the hints for an object's alignment.

These are hints on how to align an object inside the boundaries of a container/manager. Accepted values are in the 0.0 to 1.0 range, with the special value EVAS_HINT_FILL used to specify "justify" or "fill" by some users. In this case, maximum size hints should be enforced with higher priority, if they are set. Also, any padding hint set on objects should add up to the alignment space on the final scene composition.

See documentation of possible users: in Evas, they are the box and table smart objects.

For the horizontal component, 0.0 means to the left, 1.0 means to the right. Analogously, for the vertical component, 0.0 to the top, 1.0 means to the bottom.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Default alignment hint values are 0.5, for both axis.
Parameters
[in]xDouble, ranging from 0.0 to 1.0 or with the special value EVAS_HINT_FILL, to use as horizontal alignment hint.
[in]yDouble, ranging from 0.0 to 1.0 or with the special value EVAS_HINT_FILL, to use as vertical alignment hint.

◆ evas_object_size_hint_align_get()

void evas_object_size_hint_align_get ( const Evas_Object obj,
double *  x,
double *  y 
)

Retrieves the hints for on object's alignment.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

Note
Use null pointers on the hint components you're not interested in: they'll be ignored by the function.
If obj is invalid, then the hint components will be set with 0.5
Parameters
[out]xDouble, ranging from 0.0 to 1.0 or with the special value EVAS_HINT_FILL, to use as horizontal alignment hint.
[out]yDouble, ranging from 0.0 to 1.0 or with the special value EVAS_HINT_FILL, to use as vertical alignment hint.

◆ evas_object_size_hint_aspect_set()

void evas_object_size_hint_aspect_set ( Evas_Object obj,
Evas_Aspect_Control  aspect,
Evas_Coord  w,
Evas_Coord  h 
)

Sets the hints for an object's aspect ratio.

This is not a size enforcement in any way, it's just a hint that should be used whenever appropriate.

If any of the given aspect ratio terms are 0, the object's container will ignore the aspect and scale obj to occupy the whole available area, for any given policy.

Note
Smart objects(such as elementary) can have their own size hint policy. So calling this API may or may not affect the size of smart objects.
Parameters
[in]aspectThe policy/type of aspect ratio to apply to obj.
[in]wInteger to use as aspect width ratio term.
[in]hInteger to use as aspect height ratio term.

References EINA_SIZE2D.

◆ evas_object_size_hint_aspect_get()

void evas_object_size_hint_aspect_get ( const Evas_Object obj,
Evas_Aspect_Control aspect,
Evas_Coord w,
Evas_Coord h 
)

Retrieves the hints for an object's aspect ratio.

The different aspect ratio policies are documented in the Evas_Aspect_Control type. A container respecting these size hints would resize its children accordingly to those policies.

For any policy, if any of the given aspect ratio terms are 0, the object's container should ignore the aspect and scale obj to occupy the whole available area. If they are both positive integers, that proportion will be respected, under each scaling policy.

Note
Use null pointers on the hint components you're not interested in: they'll be ignored by the function.
Parameters
[out]aspectThe policy/type of aspect ratio to apply to obj.
[out]wInteger to use as aspect width ratio term.
[out]hInteger to use as aspect height ratio term.

◆ evas_object_size_hint_display_mode_set()

void evas_object_size_hint_display_mode_set ( Evas_Object obj,
Evas_Display_Mode  dispmode 
)

Sets the hints for an object's disply mode,.

This is not a size enforcement in any way, it's just a hint that can be used whenever appropriate.

Parameters
[in]dispmodeDisplay mode hint.

References EINA_UNLIKELY.

◆ evas_object_size_hint_display_mode_get()

Evas_Display_Mode evas_object_size_hint_display_mode_get ( const Evas_Object obj)

Retrieves the hints for an object's display mode.

These are hints on the display mode obj. This is not a size enforcement in any way, it's just a hint that can be used whenever appropriate. This mode can be used object's display mode like compress or expand.

Returns
Display mode hint.

◆ evas_object_layer_set()

void evas_object_layer_set ( Evas_Object obj,
short  l 
)

Sets the layer of its canvas that the given object will be part of.

If you don't use this function, you'll be dealing with an unique layer of objects, the default one. Additional layers are handy when you don't want a set of objects to interfere with another set with regard to stacking. Two layers are completely disjoint in that matter.

This is a low-level function, which you'd be using when something should be always on top, for example.

Warning
Be careful, it doesn't make sense to change the layer of smart objects' children. Smart objects have a layer of their own, which should contain all their children objects.
See also
evas_object_layer_get()
Parameters
[in]lThe number of the layer to place the object on. Must be between EVAS_LAYER_MIN and EVAS_LAYER_MAX.

Referenced by ecore_evas_ews_background_set().

◆ evas_object_layer_get()

short evas_object_layer_get ( const Evas_Object obj)

Retrieves the layer of its canvas that the given object is part of.

Returns
Number of its layer
See also
evas_object_layer_set()

◆ evas_object_below_get()

Evas_Object* evas_object_below_get ( const Evas_Object obj)

Get the Evas object stacked right below obj.

Returns
the Evas_Object directly below obj, if any, or NULL, if none

This function will traverse layers in its search, if there are objects on layers below the one obj is placed at.

See also
evas_object_layer_get()
evas_object_layer_set()
evas_object_below_get()

◆ evas_object_above_get()

Evas_Object* evas_object_above_get ( const Evas_Object obj)

Get the Evas object stacked right above obj.

Returns
the Evas_Object directly above obj, if any, or NULL, if none

This function will traverse layers in its search, if there are objects on layers above the one obj is placed at.

See also
evas_object_layer_get()
evas_object_layer_set()
evas_object_below_get()

◆ evas_object_stack_below()

void evas_object_stack_below ( Evas_Object obj,
Evas_Object below 
)

Stack obj immediately below below.

Objects, in a given canvas, are stacked in the order they get added to it. This means that, if they overlap, the highest ones will cover the lowest ones, in that order. This function is a way to change the stacking order for the objects.

This function is intended to be used with objects belonging to the same layer in a given canvas, otherwise it will fail (and accomplish nothing).

If you have smart objects on your canvas and obj is a member of one of them, then below must also be a member of the same smart object.

Similarly, if obj is not a member of a smart object, below must not be either.

See also
evas_object_layer_get()
evas_object_layer_set()
evas_object_stack_below()
Parameters
[in]belowthe object below which to stack

Referenced by edje_edit_part_restack_below(), and edje_edit_part_restack_part_below().

◆ evas_object_raise()

void evas_object_raise ( Evas_Object obj)

Raise obj to the top of its layer.

obj will, then, be the highest one in the layer it belongs to. Object on other layers won't get touched.

See also
evas_object_stack_above()
evas_object_stack_below()
evas_object_lower()

◆ evas_object_stack_above()

void evas_object_stack_above ( Evas_Object obj,
Evas_Object above 
)

Stack obj immediately above above.

Objects, in a given canvas, are stacked in the order they get added to it. This means that, if they overlap, the highest ones will cover the lowest ones, in that order. This function is a way to change the stacking order for the objects.

This function is intended to be used with objects belonging to the same layer in a given canvas, otherwise it will fail (and accomplish nothing).

If you have smart objects on your canvas and obj is a member of one of them, then above must also be a member of the same smart object.

Similarly, if obj is not a member of a smart object, above must not be either.

See also
evas_object_layer_get()
evas_object_layer_set()
evas_object_stack_below()
Parameters
[in]abovethe object above which to stack

Referenced by edje_edit_part_restack_above(), edje_edit_part_restack_below(), edje_edit_part_restack_part_above(), and edje_edit_part_restack_part_below().

◆ evas_object_lower()

void evas_object_lower ( Evas_Object obj)

Lower obj to the bottom of its layer.

obj will, then, be the lowest one in the layer it belongs to. Objects on other layers won't get touched.

See also
evas_object_stack_above()
evas_object_stack_below()
evas_object_raise()

Referenced by ecore_evas_ews_background_set().

◆ evas_object_static_clip_set()

void evas_object_static_clip_set ( Evas_Object obj,
Eina_Bool  is_static_clip 
)

Set a hint flag on the given Evas object that it's used as a "static clipper".

This is a hint to Evas that this object is used as a big static clipper and shouldn't be moved with children and otherwise considered specially. The default value for new objects is false.

Parameters
[in]is_static_cliptrue if it's to be used as a static clipper, false otherwise.

◆ evas_object_clipees_get()

const Eina_List* evas_object_clipees_get ( const Evas_Object obj)

Return a list of objects currently clipped by obj.

This returns the internal list handle that contains all objects clipped by the object obj. If none are clipped by it, the call returns null. This list is only valid until the clip list is changed and should be fetched again with another call to this function if any objects being clipped by this object are unclipped, clipped by a new object, deleted or get the clipper deleted. These operations will invalidate the list returned, so it should not be used anymore after that point. Any use of the list after this may have undefined results, possibly leading to crashes. The object obj must be a valid Evas_Object.

See also evas_object_clip_set, evas_object_clip_unset and evas_object_clip_get.

Returns
A list of objects being clipped by obj.

References eina_list_append(), EINA_LIST_FOREACH, and eina_list_free().

◆ evas_object_render_op_set()

void evas_object_render_op_set ( Evas_Object obj,
Evas_Render_Op  render_op 
)

Sets the render mode to be used for compositing the Evas object.

Note that only copy and blend modes are actually supported: - Evas_Render_Op::EVAS_RENDER_BLEND means the object will be merged on top of objects below it using simple alpha compositing. - Evas_Render_Op::EVAS_RENDER_COPY means this object's pixels will replace everything that is below, making this object opaque.

Please do not assume that Evas_Render_Op::EVAS_RENDER_COPY mode can be used to "poke" holes in a window (to see through it), as only the compositor can ensure that. Copy mode should only be used with otherwise opaque widgets, or inside non-window surfaces (eg. a transparent background inside an Ecore.Evas.Buffer).

Parameters
[in]render_opOne of the Evas_Render_Op values. Only blend (default) and copy modes are supported.

◆ evas_object_render_op_get()

Evas_Render_Op evas_object_render_op_get ( const Evas_Object obj)

Retrieves the current value of the operation used for rendering the Evas object.

Returns
One of the Evas_Render_Op values. Only blend (default) and copy modes are supported.

◆ evas_object_static_clip_get()

Eina_Bool evas_object_static_clip_get ( const Evas_Object obj)

Get the "static clipper" hint flag for a given Evas object.

Returns
true if it's to be used as a static clipper, false otherwise.

References EINA_FALSE.

◆ evas_object_scale_set()

void evas_object_scale_set ( Evas_Object obj,
double  scale 
)

Sets the scaling factor for an Evas object.

Does not affect all objects.

This will multiply the object's dimension by the given factor, thus altering its geometry (width and height). Useful when you want scalable UI elements, possibly at run time.

Note
Only text and textblock objects have scaling change handlers. Other objects won't change visually on this call.
Parameters
[in]objThe object.
[in]scaleThe scaling factor. 1.0 means no scaling, default size.

◆ evas_object_scale_get()

double evas_object_scale_get ( const Evas_Object obj)

Retrieves the scaling factor for the given Evas object.

Parameters
[in]objThe object.
Returns
The scaling factor. 1.0 means no scaling, default size.

◆ evas_object_pointer_inside_by_device_get()

Eina_Bool evas_object_pointer_inside_by_device_get ( const Evas_Object obj,
Efl_Input_Device *  dev 
)

Returns whether the mouse pointer is logically inside the object.

Parameters
[in]devThe pointer device.
Returns
true if the pointer is inside, false otherwise.
Since
1.20

References EINA_FALSE, and EINA_TRUE.

Referenced by evas_object_pointer_inside_get().

◆ evas_object_pointer_inside_get()

Eina_Bool evas_object_pointer_inside_get ( const Evas_Object obj)

Returns whether the default mouse pointer is logically inside the object.

When this function is called it will return a value of either false or true, depending on if event_feed_mouse_in or event_feed_mouse_out have been called to feed in a mouse enter event into the object.

A return value of true indicates the mouse is logically inside the object, and false implies it is logically outside the object.

If e is not a valid object, the return value is undefined.

Returns
true if the mouse pointer is inside the object, false otherwise

References evas_object_pointer_inside_by_device_get().

◆ evas_object_pointer_coords_inside_get()

Eina_Bool evas_object_pointer_coords_inside_get ( const Evas_Object eo_obj,
int  x,
int  y 
)

Returns whether the coords are logically inside the object.

When this function is called it will return a value of either false or true, depending on if the coords are inside the object's current geometry.

A return value of true indicates the position is logically inside the object, and false implies it is logically outside the object.

If e is not a valid object, the return value is undefined.

Parameters
[in]xThe canvas-relative x coordinate.
[in]yThe canvas-relative y coordinate.
Returns
true if the coords are inside the object, false otherwise

References EINA_POSITION2D.

◆ evas_object_evas_get()

Evas* evas_object_evas_get ( const Eo *  obj)

◆ evas_object_map_set()

void evas_object_map_set ( Evas_Object obj,
const Evas_Map *  map 
)

Set current object transformation map.

This sets the map on a given object. It is copied from the map pointer, so there is no need to keep the map object if you don't need it anymore.

A map is a set of 4 points which have canvas x, y coordinates per point, with an optional z point value as a hint for perspective correction, if it is available. As well each point has u and v coordinates. These are like "texture coordinates" in OpenGL in that they define a point in the source image that is mapped to that map vertex/point. The u corresponds to the x coordinate of this mapped point and v, the y coordinate. Note that these coordinates describe a bounding region to sample.

Note
The map points a uv coordinates match the image geometry. If the map parameter is null, the stored map will be freed and geometry prior to enabling/setting a map will be restored.
Parameters
[in]mapThe map.

References EINA_COW_WRITE_BEGIN, EINA_COW_WRITE_END, and EINA_TRUE.

◆ evas_object_map_get()

const Evas_Map* evas_object_map_get ( const Evas_Object obj)

Get current object transformation map.

This returns the current internal map set on the indicated object. It is intended for read-only access and is only valid as long as the object is not deleted or the map on the object is not changed.

Returns
The map.

◆ evas_object_map_enable_set()

void evas_object_map_enable_set ( Evas_Object obj,
Eina_Bool  enabled 
)

Enable or disable the map that is set.

Enable or disable the use of map for the object obj. On enable, the object geometry will be saved, and the new geometry will change (position and size) to reflect the map geometry set.

If the object doesn't have a map set (with evas_object_map_set), the initial geometry will be undefined. It is advised to always set a map to the object first, and then call this function to enable its use.

Parameters
[in]enabledEnabled state.

◆ evas_object_map_enable_get()

Eina_Bool evas_object_map_enable_get ( const Evas_Object obj)

Whether the map is enabled or not.

Parameters
[in]objThe evas object
Returns
The value of enabled as passed to evas_object_map_enable_set().
See also
evas_object_map_enable_set

References EINA_FALSE.

◆ evas_object_is_frame_object_set()

void evas_object_is_frame_object_set ( Efl_Canvas_Object obj,
Eina_Bool  is_frame 
)

If true the object belongs to the window border decorations.

This will be false by default, and should be false for all objects created by the application, unless swallowed in some very specific parts of the window.

It is very unlikely that an application needs to call this manually, as the window will handle this feature automatically.

Parameters
[in]objThe object.
[in]is_frametrue if the object is a frame, false otherwise
Since
1.2

◆ evas_object_is_frame_object_get()

Eina_Bool evas_object_is_frame_object_get ( const Efl_Canvas_Object obj)

If true the object belongs to the window border decorations.

This will be false by default, and should be false for all objects created by the application, unless swallowed in some very specific parts of the window.

It is very unlikely that an application needs to call this manually, as the window will handle this feature automatically.

Parameters
[in]objThe object.
Returns
true if the object is a frame, false otherwise
Since
1.2

◆ evas_object_freeze_events_set()

void evas_object_freeze_events_set ( Efl_Canvas_Object obj,
Eina_Bool  freeze 
)

Set whether an Evas object is to freeze (discard) events.

If freeze is true, it will force events on obj to be discarded. Unlike evas_object_pass_events_set, events will not be passed to next lower object. This API can be used for blocking events while obj is in transition.

If freeze is false, events will be processed on that object as normal.

Warning
If you block only key/mouse up events with this API, you can't be sure of the state of any objects that have only key/mouse down events.
Parameters
[in]objThe object.
[in]freezePass when obj is to freeze events ($true) or not ($false).
Since
1.1

References EINA_SAFETY_ON_NULL_RETURN.

Referenced by elm_transit_event_enabled_set(), elm_transit_go(), and elm_transit_object_add().

◆ evas_object_freeze_events_get()

Eina_Bool evas_object_freeze_events_get ( const Efl_Canvas_Object obj)

Determine whether an object is set to freeze (discard) events.

Parameters
[in]objThe object.
Returns
Pass when obj is to freeze events ($true) or not ($false).
Since
1.1