A GLView widget allows for simple GL rendering in elementary environment. GLView hides all the complicated evas_gl details so that the user only has to deal with registering a few callback functions for rendering to a surface using OpenGL APIs.

This widget emits the following signals, besides the ones sent from GLView:

"focused" - when glview has received focus.
"unfocused" - when glview has lost focus.
"language,changed" - the program's language changed

Below is an illustrative example of how to use GLView and and OpenGL to render in elementary environment. glview_example_01_page

Functions
Evas_Object *	elm_glview_add (Evas_Object *parent)
void	elm_glview_changed_set (Evas_Object *obj)
void	elm_glview_size_get (const Evas_Object obj, int w, int *h)
void	elm_glview_size_set (Evas_Object *obj, int w, int h)
void	elm_glview_del_func_set (Evas_Object *obj, Elm_GLView_Func_Cb func)
void	elm_glview_resize_func_set (Evas_Object *obj, Elm_GLView_Func_Cb func)
void	elm_glview_render_func_set (Evas_Object *obj, Elm_GLView_Func_Cb func)

Enumeration Type Documentation

enum Elm_GLView_Mode

Selects the target surface properties.

An OR combination of Elm_GLView_Mode values should be passed to elm_glview_mode_set when setting up a GL widget. These flags will specify the properties of the rendering target surface; in particular, the mode can request the surface to support alpha, depth and stencil buffers.

ELM_GLVIEW_CLIENT_SIDE_ROTATION is a special value that indicates to EFL that the application will handle the view rotation when the device is rotated. This is needed only when the application requests direct rendering. Please refer to Evas_GL for more information about direct rendering.

See elm_glview_mode_set See elm_opengl_page

Enumerator:

ELM_GLVIEW_NONE	Default mode
ELM_GLVIEW_ALPHA	Alpha channel enabled rendering mode
ELM_GLVIEW_DEPTH	Depth buffer enabled rendering mode (24 bits by default)
ELM_GLVIEW_STENCIL	Stencil buffer enabled rendering mode (8 bits by default)
ELM_GLVIEW_DIRECT	Request direct rendering, unless there must be a fallback
ELM_GLVIEW_CLIENT_SIDE_ROTATION	Client will handle GL view rotation if direct rendering is enabled
ELM_GLVIEW_DEPTH_8	Request min. 8 bits for the depth buffer
ELM_GLVIEW_DEPTH_16	Request min. 16 bits for the depth buffer
ELM_GLVIEW_DEPTH_24	Request min. 24 bits for the depth buffer (default)
ELM_GLVIEW_DEPTH_32	Request min. 32 bits for the depth buffer
ELM_GLVIEW_STENCIL_1	Request min. 1 bits for the stencil buffer
ELM_GLVIEW_STENCIL_2	Request min. 2 bits for the stencil buffer
ELM_GLVIEW_STENCIL_4	Request min. 4 bits for the stencil buffer
ELM_GLVIEW_STENCIL_8	Request min. 8 bits for the stencil buffer (default)
ELM_GLVIEW_STENCIL_16	Request min. 16 bits for the stencil buffer
ELM_GLVIEW_MULTISAMPLE_LOW	MSAA with minimum number of samples
ELM_GLVIEW_MULTISAMPLE_MED	MSAA with half the number of maximum samples
ELM_GLVIEW_MULTISAMPLE_HIGH	MSAA with maximum number of samples

Function Documentation

Evas_Object* elm_glview_add ( Evas_Object * parent )

Add a new glview to the parent

Parameters:

parent The parent object

Returns:: The new object or NULL if it cannot be created

Since :: 2.3

Examples:: glview_example_01.c.

void elm_glview_changed_set ( Evas_Object * obj )

Notifies that there has been changes in the GLView.

Parameters:

obj	The GLView object

Since :: 2.3

Examples:: glview_example_01.c.

void elm_glview_del_func_set	(	Evas_Object *	obj,
		Elm_GLView_Func_Cb	func
	)

Set the delete function that runs in the main loop.

Parameters:

obj	The GLView object
func	The callback function

Since :: 2.3

Examples:: glview_example_01.c.

void elm_glview_render_func_set	(	Evas_Object *	obj,
		Elm_GLView_Func_Cb	func
	)

Set the render function that runs in the main loop.

Parameters:

obj	The GLView object
func	The callback function

Since :: 2.3

Examples:: glview_example_01.c.

void elm_glview_resize_func_set	(	Evas_Object *	obj,
		Elm_GLView_Func_Cb	func
	)

Set the resize function that gets called when resize happens.

Parameters:

obj	The GLView object
func	The callback function

Since :: 2.3

Examples:: glview_example_01.c.

void elm_glview_size_get	(	const Evas_Object *	obj,
		int *	w,
		int *	h
	)

Gets the size of the GLView.

Parameters:

obj	The GLView object
w	pointer of int width
h	pointer of int height

Since :: 2.3

Examples:: glview_example_01.c.

void elm_glview_size_set	(	Evas_Object *	obj,
		int	w,
		int	h
	)

Sets the size of the GLView.

Parameters:

obj	The GLView object
w	width of GLView
h	height of GLView

Since :: 2.3

Functions

Enumeration Type Documentation

Function Documentation