Evas object smart interfaces

In this example, we illustrate how to create and handle Evas smart interfaces. Note that we use the same code base of the Evas object smart objects example, here. We just augment it with an interfaces demonstration.

A smart interface is just a functions interface a given smart object is declaring to support and or use. In Evas, interfaces are very simple: no interface inheritance, no interface overriding. Their purpose is to extend an object's capabilities and behavior beyond the sub-classing schema.

Here, together with a custom smart object, we create and declare the object as using an Evas interface. It'll have a custom function, too, besides the add() and del() obligatory ones. To demonstrate interface data, which is bound to object instances, we'll have a string as this data.

Here is where we declare our interface:

static const char iface1_data[] = "iface1_data";
static const char IFACE1_NAME[] = "iface1";
static Eina_Bool _iface1_add(Evas_Object *);
static void _iface1_del(Evas_Object *);
static void _iface1_custom_fn(Evas_Object *);
typedef struct _Evas_Smart_Example_Interface Evas_Smart_Example_Interface;
struct _Evas_Smart_Example_Interface
{
void (*example_func)(Evas_Object *obj);
};
static Evas_Smart_Example_Interface iface1;
static Eina_Bool
_iface1_add(Evas_Object *obj EINA_UNUSED)
{
printf("iface1's add()!\n");
return EINA_TRUE;
}
static void
_iface1_del(Evas_Object *obj)
{
printf("iface1's del()! Data is %s\n",
(obj, (Evas_Smart_Interface *)&iface1));
}
static void
_iface1_custom_fn(Evas_Object *obj EINA_UNUSED)
{
printf("iface1's custom_fn()!\n");
}
static const Evas_Smart_Interface *_smart_interfaces[] =
{
(Evas_Smart_Interface *)&iface1, NULL
};

Note that there's error checking for interfaces creation, by means of the add() method's return value (_iface1_add(), here).

Now note that here we are filling in the interface's fields dynamically. Let's move on to that code region:

iface = (Evas_Smart_Example_Interface *)&iface1;
iface->base.name = IFACE1_NAME;
iface->base.private_size = sizeof(iface1_data);
iface->base.add = _iface1_add;
iface->base.del = _iface1_del;
iface->example_func = _iface1_custom_fn;
d.smt = evas_smart_example_add(d.evas);

As important as setting the function pointers, is declaring the private_size as to match exactly the size of the data blob we want to have allocated for us by Evas. This will happen automatically inside evas_smart_example_add(). Later, on this code, we deal exactly with that data blob, more specifically writing on it (as it's not done inside _iface1_add(), here:

iface = (Evas_Smart_Example_Interface *)evas_object_smart_interface_get
(d.smt, IFACE1_NAME);
if (iface)
{
char *data;
printf("We've found a smart interface on the smart object!"
"\n\tname: %s\n", iface->base.name);
printf("Setting its interface data...\n");
(d.smt, (Evas_Smart_Interface *)iface);
memcpy(data, iface1_data, sizeof(iface1_data));
printf("Calling an interface's function...\n");
iface->example_func(d.smt);
}

Before accessing the interface data, we exercise the interface fetching call evas_object_smart_interface_get(), with the name string we used to be interface's name. With that handle in hands, we issue evas_object_smart_interface_data_get() and write the string we want as data on that memory region. That will make up for the string you get on _iface1_del().

The full example follows.

#ifdef HAVE_CONFIG_H
#include "config.h"
#else
#define PACKAGE_EXAMPLES_DIR "."
#endif
#include <Ecore.h>
#include <Ecore_Evas.h>
#include <stdio.h>
#include <errno.h>
#define WIDTH (320)
#define HEIGHT (240)
static const char *commands = \
"commands are:\n"
"\tl - insert child rectangle on the left\n"
"\tr - insert child rectangle on the right\n"
"\tw - remove and delete all members from the smart object\n"
"\tright arrow - move smart object to the right\n"
"\tleft arrow - move smart object to the left\n"
"\tup arrow - move smart object up\n"
"\tdown arrow - move smart object down\n"
"\td - decrease smart object's size\n"
"\ti - increase smart object's size\n"
"\tc - change smart object's clipper color\n"
"\th - print help\n"
"\tq - quit\n"
;
#define WHITE {255, 255, 255, 255}
#define RED {255, 0, 0, 255}
#define GREEN {0, 255, 0, 255}
#define BLUE {0, 0, 255, 255}
struct test_data
{
Ecore_Evas *ee;
Evas *evas;
Evas_Object *smt, *bg, *clipper, *rects[2];
};
struct color_tuple
{
int r, g, b, a;
} clipper_colors[4] = {WHITE, RED, GREEN, BLUE};
int cur_color = 0;
static const char *
_index_to_color(int i)
{
switch (i)
{
case 0:
return "WHITE (default)";
case 1:
return "RED";
case 2:
return "GREEN";
case 3:
return "BLUE";
default:
return "other";
}
}
static struct test_data d = {0};
static const char *border_img_path = PACKAGE_EXAMPLES_DIR "/red.png";
#define _evas_smart_example_type "Evas_Smart_Example"
static const char iface1_data[] = "iface1_data";
static const char IFACE1_NAME[] = "iface1";
static Eina_Bool _iface1_add(Evas_Object *);
static void _iface1_del(Evas_Object *);
static void _iface1_custom_fn(Evas_Object *);
typedef struct _Evas_Smart_Example_Interface Evas_Smart_Example_Interface;
struct _Evas_Smart_Example_Interface
{
void (*example_func)(Evas_Object *obj);
};
static Evas_Smart_Example_Interface iface1;
static Eina_Bool
_iface1_add(Evas_Object *obj EINA_UNUSED)
{
printf("iface1's add()!\n");
return EINA_TRUE;
}
static void
_iface1_del(Evas_Object *obj)
{
printf("iface1's del()! Data is %s\n",
(obj, (Evas_Smart_Interface *)&iface1));
}
static void
_iface1_custom_fn(Evas_Object *obj EINA_UNUSED)
{
printf("iface1's custom_fn()!\n");
}
static const Evas_Smart_Interface *_smart_interfaces[] =
{
(Evas_Smart_Interface *)&iface1, NULL
};
#define EVT_CHILDREN_NUMBER_CHANGED "children,changed"
static const Evas_Smart_Cb_Description _smart_callbacks[] =
{
{EVT_CHILDREN_NUMBER_CHANGED, "i"},
{NULL, NULL}
};
typedef struct _Evas_Smart_Example_Data Evas_Smart_Example_Data;
/*
* This structure augments clipped smart object's instance data,
* providing extra members required by our example smart object's
* implementation.
*/
struct _Evas_Smart_Example_Data
{
Evas_Object *children[2], *border;
int child_count;
};
#define EVAS_SMART_EXAMPLE_DATA_GET(o, ptr) \
Evas_Smart_Example_Data * ptr = evas_object_smart_data_get(o)
#define EVAS_SMART_EXAMPLE_DATA_GET_OR_RETURN(o, ptr) \
EVAS_SMART_EXAMPLE_DATA_GET(o, ptr); \
if (!ptr) \
{ \
fprintf(stderr, "No widget data for object %p (%s)!", \
o, evas_object_type_get(o)); \
fflush(stderr); \
abort(); \
return; \
}
#define EVAS_SMART_EXAMPLE_DATA_GET_OR_RETURN_VAL(o, ptr, val) \
EVAS_SMART_EXAMPLE_DATA_GET(o, ptr); \
if (!ptr) \
{ \
fprintf(stderr, "No widget data for object %p (%s)!", \
o, evas_object_type_get(o)); \
fflush(stderr); \
abort(); \
return val; \
}
(_evas_smart_example_type, _evas_smart_example, Evas_Smart_Class,
_smart_interfaces);
static void
_on_destroy(Ecore_Evas *ee EINA_UNUSED)
{
}
/* Keep the example's window size in sync with the background image's size */
static void
_canvas_resize_cb(Ecore_Evas *ee)
{
int w, h;
ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
evas_object_resize(d.bg, w, h);
}
static void
_on_child_del(void *data,
void *einfo EINA_UNUSED)
{
Evas_Object *example_smart = data;
long idx;
EVAS_SMART_EXAMPLE_DATA_GET(example_smart, priv);
idx = (long)(uintptr_t)evas_object_data_get(o, "index");
idx--;
priv->children[idx] = NULL;
evas_object_smart_changed(example_smart);
}
static void
_evas_smart_example_child_callbacks_unregister(Evas_Object *obj)
{
evas_object_data_set(obj, "index", NULL);
}
static void
_evas_smart_example_child_callbacks_register(Evas_Object *o,
Evas_Object *child,
long idx)
{
evas_object_data_set(child, "index", (void *)(uintptr_t)(++idx));
}
/* create and setup a new example smart object's internals */
static void
_evas_smart_example_smart_add(Evas_Object *o)
{
EVAS_SMART_DATA_ALLOC(o, Evas_Smart_Example_Data);
/* this is a border around the smart object's area, delimiting it */
priv->border = evas_object_image_filled_add(evas_object_evas_get(o));
evas_object_image_file_set(priv->border, border_img_path, NULL);
evas_object_image_border_set(priv->border, 3, 3, 3, 3);
evas_object_image_border_center_fill_set(
priv->border, EVAS_BORDER_FILL_NONE);
evas_object_smart_member_add(priv->border, o);
_evas_smart_example_parent_sc->add(o);
}
static void
_evas_smart_example_smart_del(Evas_Object *o)
{
EVAS_SMART_EXAMPLE_DATA_GET(o, priv);
if (priv->children[0])
{
_evas_smart_example_child_callbacks_unregister(priv->children[0]);
priv->children[0] = NULL;
}
if (priv->children[1])
{
_evas_smart_example_child_callbacks_unregister(priv->children[1]);
priv->children[1] = NULL;
}
_evas_smart_example_parent_sc->del(o);
}
static void
_evas_smart_example_smart_show(Evas_Object *o)
{
EVAS_SMART_EXAMPLE_DATA_GET(o, priv);
if (priv->children[0]) evas_object_show(priv->children[0]);
if (priv->children[1]) evas_object_show(priv->children[1]);
evas_object_show(priv->border);
_evas_smart_example_parent_sc->show(o);
}
static void
_evas_smart_example_smart_hide(Evas_Object *o)
{
EVAS_SMART_EXAMPLE_DATA_GET(o, priv);
if (priv->children[0]) evas_object_hide(priv->children[0]);
if (priv->children[1]) evas_object_hide(priv->children[1]);
evas_object_hide(priv->border);
_evas_smart_example_parent_sc->hide(o);
}
static void
_evas_smart_example_smart_resize(Evas_Object *o,
{
Evas_Coord ow, oh;
evas_object_geometry_get(o, NULL, NULL, &ow, &oh);
if ((ow == w) && (oh == h)) return;
/* this will trigger recalculation */
}
/* act on child objects' properties, before rendering */
static void
_evas_smart_example_smart_calculate(Evas_Object *o)
{
Evas_Coord x, y, w, h;
EVAS_SMART_EXAMPLE_DATA_GET_OR_RETURN(o, priv);
evas_object_geometry_get(o, &x, &y, &w, &h);
evas_object_resize(priv->border, w, h);
evas_object_move(priv->border, x, y);
if (priv->children[0])
{
evas_object_move(priv->children[0], x + 3, y + 3);
evas_object_resize(priv->children[0], (w / 2) - 3, (h / 2) - 3);
}
if (priv->children[1])
{
evas_object_move(priv->children[1], x + (w / 2), y + (h / 2));
evas_object_resize(priv->children[1], (w / 2) - 3, (h / 2) - 3);
}
}
/* setting our smart interface */
static void
_evas_smart_example_smart_set_user(Evas_Smart_Class *sc)
{
/* specializing these two */
sc->add = _evas_smart_example_smart_add;
sc->del = _evas_smart_example_smart_del;
sc->show = _evas_smart_example_smart_show;
sc->hide = _evas_smart_example_smart_hide;
/* clipped smart object has no hook on resizes or calculations */
sc->resize = _evas_smart_example_smart_resize;
sc->calculate = _evas_smart_example_smart_calculate;
}
/* BEGINS example smart object's own interface */
/* add a new example smart object to a canvas */
evas_smart_example_add(Evas *evas)
{
return evas_object_smart_add(evas, _evas_smart_example_smart_class_new());
}
static void
_evas_smart_example_remove_do(Evas_Smart_Example_Data *priv,
Evas_Object *child,
int idx)
{
priv->children[idx] = NULL;
priv->child_count--;
_evas_smart_example_child_callbacks_unregister(child);
}
/* remove a child element, return its pointer (or NULL on errors) */
evas_smart_example_remove(Evas_Object *o,
Evas_Object *child)
{
long idx;
EVAS_SMART_EXAMPLE_DATA_GET_OR_RETURN_VAL(o, priv, NULL);
if (priv->children[0] != child && priv->children[1] != child)
{
fprintf(stderr, "You are trying to remove something not belonging to"
" the example smart object!\n");
return NULL;
}
idx = (long)(uintptr_t)evas_object_data_get(child, "index");
idx--;
_evas_smart_example_remove_do(priv, child, idx);
o, EVT_CHILDREN_NUMBER_CHANGED, (void *)(uintptr_t)priv->child_count);
return child;
}
/* set to return any previous object set to the left position of the
* smart object or NULL, if any (or on errors) */
evas_smart_example_set_left(Evas_Object *o,
Evas_Object *child)
{
Evas_Object *ret = NULL;
EVAS_SMART_EXAMPLE_DATA_GET_OR_RETURN_VAL(o, priv, NULL);
if (!child)
return NULL;
if (priv->children[1] == child)
{
fprintf(stderr, "You mustn't place a child on both slots of"
" the example smart object!\n");
return NULL;
}
if (priv->children[0])
{
if (priv->children[0] != child)
{
ret = priv->children[0];
_evas_smart_example_remove_do(priv, priv->children[0], 0);
}
else return child;
}
priv->children[0] = child;
_evas_smart_example_child_callbacks_register(o, child, 0);
priv->child_count++;
if (!ret)
{
o, EVT_CHILDREN_NUMBER_CHANGED, (void *)(uintptr_t)priv->child_count);
}
return ret;
}
/* set to return any previous object set to the right position of the
* smart object or NULL, if any (or on errors) */
evas_smart_example_set_right(Evas_Object *o,
Evas_Object *child)
{
Evas_Object *ret = NULL;
EVAS_SMART_EXAMPLE_DATA_GET_OR_RETURN_VAL(o, priv, NULL);
if (!child)
return NULL;
if (priv->children[0] == child)
{
fprintf(stderr, "You mustn't place a child on both slots of"
" the example smart object!\n");
return NULL;
}
if (priv->children[1])
{
if (priv->children[1] != child)
{
ret = priv->children[1];
_evas_smart_example_remove_do(priv, priv->children[1], 1);
}
else return child;
}
priv->children[1] = child;
_evas_smart_example_child_callbacks_register(o, child, 1);
priv->child_count++;
if (!ret)
{
o, EVT_CHILDREN_NUMBER_CHANGED, (void *)(uintptr_t)priv->child_count);
}
return ret;
}
/* END OF example smart object's own interface */
static void
_on_keydown(void *data EINA_UNUSED,
void *einfo)
{
Evas_Event_Key_Down *ev = einfo;
if (strcmp(ev->key, "q") == 0) /* print help */
{
_on_destroy(NULL);
return;
}
if (strcmp(ev->key, "h") == 0) /* print help */
{
printf("%s\n", commands);
return;
}
if (strcmp(ev->key, "w") == 0) /* clear out smart object (WRT
* members) */
{
if (d.rects[0])
{
evas_smart_example_remove(d.smt, d.rects[0]);
evas_object_del(d.rects[0]);
}
if (d.rects[1])
{
evas_smart_example_remove(d.smt, d.rects[1]);
evas_object_del(d.rects[1]);
}
memset(d.rects, 0, sizeof(d.rects));
printf("Deleting all members of the smart object.\n");
return;
}
if (strcmp(ev->key, "l") == 0) /* insert random colored
* rectangle on the left */
{
Evas_Object *rect = evas_object_rectangle_add(d.evas), *prev;
rect, rand() % 255, rand() % 255, rand() % 255, 255);
prev = evas_smart_example_set_left(d.smt, rect);
d.rects[0] = rect;
printf("Setting smart object's left spot with a new"
" rectangle.\n");
printf("Checking its new smart object parent: %s\n",
evas_object_smart_parent_get(rect) == d.smt ? "OK!" :
"Failure!");
if (prev)
{
int r, g, b;
evas_object_color_get(prev, &r, &g, &b, NULL);
printf("Deleting previous left child,"
" which had colors (%d, %d, %d)\n", r, g, b);
}
return;
}
if (strcmp(ev->key, "r") == 0) /* insert random colored
* rectangle on the right */
{
Evas_Object *rect = evas_object_rectangle_add(d.evas), *prev;
rect, rand() % 255, rand() % 255, rand() % 255, 255);
prev = evas_smart_example_set_right(d.smt, rect);
d.rects[1] = rect;
printf("Setting smart object's right spot with a new"
" rectangle.\n");
printf("Checking its new smart object parent: %s\n",
evas_object_smart_parent_get(rect) == d.smt ? "OK!" :
"Failure!");
if (prev)
{
int r, g, b;
evas_object_color_get(prev, &r, &g, &b, NULL);
printf("Deleting previous right child,"
" which had colors (%d, %d, %d)\n", r, g, b);
}
return;
}
/* move smart object along the canvas */
if (strcmp(ev->key, "Right") == 0 || strcmp(ev->key, "Left") == 0 ||
strcmp(ev->key, "Up") == 0 || strcmp(ev->key, "Down") == 0)
{
Evas_Coord x, y;
evas_object_geometry_get(d.smt, &x, &y, NULL, NULL);
switch (ev->key[0])
{
case 'R':
x += 20;
break;
case 'L':
x -= 20;
break;
case 'U':
y -= 20;
break;
case 'D':
y += 20;
break;
}
evas_object_move(d.smt, x, y);
return;
}
/* increase smart object's size */
if (strcmp(ev->key, "i") == 0)
{
Evas_Coord w, h;
evas_object_geometry_get(d.smt, NULL, NULL, &w, &h);
w *= 1.1;
h *= 1.1;
evas_object_resize(d.smt, w, h);
return;
}
/* decrease smart object's size */
if (strcmp(ev->key, "d") == 0)
{
Evas_Coord w, h;
evas_object_geometry_get(d.smt, NULL, NULL, &w, &h);
w *= 0.9;
h *= 0.9;
evas_object_resize(d.smt, w, h);
return;
}
/* change smart object's clipper color */
if (strcmp(ev->key, "c") == 0)
{
cur_color = (cur_color + 1) % 4;
d.clipper, clipper_colors[cur_color].r, clipper_colors[cur_color].g,
clipper_colors[cur_color].b, clipper_colors[cur_color].a);
fprintf(stderr, "Changing clipper's color to %s\n",
_index_to_color(cur_color));
return;
}
}
static void
/* callback on number of member objects changed */
_on_example_smart_object_child_num_change(void *data EINA_UNUSED,
void *event_info)
{
printf("Number of child members on our example smart"
" object changed to %llu\n", (unsigned long long)(uintptr_t)event_info);
}
int
main(void)
{
const Evas_Smart_Cb_Description **descriptions;
Evas_Smart_Example_Interface *iface;
unsigned int count;
Eina_Bool ret;
srand(time(NULL));
return EXIT_FAILURE;
/* this will give you a window with an Evas canvas under the first
* engine available */
d.ee = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL);
if (!d.ee)
goto error;
ecore_evas_callback_destroy_set(d.ee, _on_destroy);
ecore_evas_callback_resize_set(d.ee, _canvas_resize_cb);
/* the canvas pointer, de facto */
d.evas = ecore_evas_get(d.ee);
d.bg = evas_object_rectangle_add(d.evas);
evas_object_color_set(d.bg, 255, 255, 255, 255);
evas_object_move(d.bg, 0, 0);
evas_object_resize(d.bg, WIDTH, HEIGHT);
iface = (Evas_Smart_Example_Interface *)&iface1;
iface->base.name = IFACE1_NAME;
iface->base.private_size = sizeof(iface1_data);
iface->base.add = _iface1_add;
iface->base.del = _iface1_del;
iface->example_func = _iface1_custom_fn;
d.smt = evas_smart_example_add(d.evas);
evas_object_move(d.smt, WIDTH / 4, HEIGHT / 4);
evas_object_resize(d.smt, WIDTH / 2, HEIGHT / 2);
ret = evas_object_smart_type_check(d.smt, _evas_smart_example_type);
printf("Adding smart object of type \"%s\" to the canvas: %s.\n",
_evas_smart_example_type, ret ? "success" : "failure");
printf("Checking if clipped smart object's clipper is a "
"\"static\" one: %s\n",
evas_object_static_clip_get(d.clipper) ? "yes" : "no");
d.clipper, clipper_colors[cur_color].r, clipper_colors[cur_color].g,
clipper_colors[cur_color].b, clipper_colors[cur_color].a);
d.smt, &descriptions, &count, NULL, NULL);
for (; *descriptions; descriptions++)
{
printf("We've found a smart callback on the smart object!"
"\n\tname: %s\n\ttype: %s\n", (*descriptions)->name,
(*descriptions)->type);
if (strcmp((*descriptions)->type, "i")) continue;
/* we know we don't have other types of smart callbacks
* here, just playing with it */
/* for now, we know the only one callback is the one
* reporting number of member objects changed on the
* example smart object */
d.smt, (*descriptions)->name,
_on_example_smart_object_child_num_change, NULL);
}
d.bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, NULL);
iface = (Evas_Smart_Example_Interface *)evas_object_smart_interface_get
(d.smt, IFACE1_NAME);
if (iface)
{
char *data;
printf("We've found a smart interface on the smart object!"
"\n\tname: %s\n", iface->base.name);
printf("Setting its interface data...\n");
(d.smt, (Evas_Smart_Interface *)iface);
memcpy(data, iface1_data, sizeof(iface1_data));
printf("Calling an interface's function...\n");
iface->example_func(d.smt);
}
printf("%s\n", commands);
return 0;
error:
fprintf(stderr, "error: Requires at least one Evas engine built and linked"
" to ecore-evas for this example to run properly.\n");
return -1;
}
ecore_evas_new
EAPI Ecore_Evas * ecore_evas_new(const char *engine_name, int x, int y, int w, int h, const char *extra_options)
Creates a new Ecore_Evas based on engine name and common parameters.
Definition: ecore_evas.c:1059
ecore_evas_shutdown
EAPI int ecore_evas_shutdown(void)
Shuts down the Ecore_Evas system.
Definition: ecore_evas.c:668
evas_object_smart_clipped_class_get
const Evas_Smart_Class * evas_object_smart_clipped_class_get(void)
Get a pointer to the clipped smart object's class, to use for proper inheritance.
Definition: evas_object_smart_clipped.c:121
ecore_evas_geometry_get
EAPI void ecore_evas_geometry_get(const Ecore_Evas *ee, int *x, int *y, int *w, int *h)
Gets the geometry of an Ecore_Evas.
Definition: ecore_evas.c:1382
_Evas_Smart_Class::del
void(* del)(Evas_Object *o)
code to be run when removing object from a canvas
Definition: Evas_Common.h:1941
evas_object_smart_type_check
Eina_Bool evas_object_smart_type_check(const Evas_Object *obj, const char *type)
Checks whether a given smart object or any of its smart object parents is of a given smart class.
Definition: evas_object_smart.c:422
_Evas_Object_Smart_Clipped_Data
Definition: Evas_Common.h:2568
_Evas_Smart_Class::show
void(* show)(Evas_Object *o)
code to be run when showing object on a canvas
Definition: Evas_Common.h:1944
ecore_evas_callback_resize_set
EAPI void ecore_evas_callback_resize_set(Ecore_Evas *ee, Ecore_Evas_Event_Cb func)
Sets a callback for Ecore_Evas resize events.
Definition: ecore_evas.c:1160
evas_object_data_get
void * evas_object_data_get(const Evas_Object *obj, const char *key)
Return an attached data pointer on an Evas object by its given string key.
Definition: evas_data.c:12
ecore_main_loop_quit
void ecore_main_loop_quit(void)
Quits the main loop once all the events currently on the queue have been processed.
Definition: ecore_main.c:1289
_Evas_Event_Key_Down
Key press event.
Definition: Evas_Legacy.h:313
EINA_UNUSED
#define EINA_UNUSED
Definition: eina_types.h:321
evas_object_color_get
void evas_object_color_get(const Evas_Object *obj, int *r, int *g, int *b, int *a)
Retrieves the general/main color of the given Evas object.
Definition: evas_object_main.c:2110
evas_object_smart_callback_call
void evas_object_smart_callback_call(Evas_Object *eo_obj, const char *event, void *event_info)
Call a given smart callback on the smart object obj.
Definition: evas_object_smart.c:1061
ecore_evas_free
EAPI void ecore_evas_free(Ecore_Evas *ee)
Frees an Ecore_Evas.
Definition: ecore_evas.c:1103
ecore_evas_init
EAPI int ecore_evas_init(void)
Inits the Ecore_Evas system.
Definition: ecore_evas.c:604
evas_object_hide
void evas_object_hide(Evas_Object *eo_obj)
Makes the given Evas object invisible.
Definition: evas_object_main.c:1862
_Evas_Smart_Class::calculate
void(* calculate)(Evas_Object *o)
code to be run when object has rendering updates on a canvas
Definition: Evas_Common.h:1949
evas_object_smart_interface_get
const void * evas_object_smart_interface_get(const Evas_Object *obj, const char *name)
Retrieve an Evas smart object's interface, by name string pointer.
Definition: evas_object_smart.c:150
EVAS_SMART_DATA_ALLOC
#define EVAS_SMART_DATA_ALLOC(o, priv_type)
Definition: Evas_Common.h:2303
evas_object_smart_callback_add
void evas_object_smart_callback_add(Evas_Object *eo_obj, const char *event, Evas_Smart_Cb func, const void *data)
Add (register) a callback function to the smart event specified by event on the smart object obj.
Definition: evas_object_smart.c:980
evas_object_smart_interface_data_get
void * evas_object_smart_interface_data_get(const Evas_Object *obj, const Evas_Smart_Interface *iface)
Retrieve an Evas smart object interface's private data.
Definition: evas_object_smart.c:174
_Evas_Smart_Class::resize
void(* resize)(Evas_Object *o, Evas_Coord w, Evas_Coord h)
code to be run when resizing object on a canvas.
Definition: Evas_Common.h:1943
Evas_Object
Efl_Canvas_Object Evas_Object
Definition: Evas_Common.h:180
_Evas_Smart_Cb_Description
Definition: Evas_Common.h:1996
Ecore_Evas.h
Evas wrapper functions.
evas_object_smart_callbacks_descriptions_get
void evas_object_smart_callbacks_descriptions_get(const Evas_Object *obj, const Evas_Smart_Cb_Description ***class_descriptions, unsigned int *class_count, const Evas_Smart_Cb_Description ***instance_descriptions, unsigned int *instance_count)
Retrieve an smart object's know smart callback descriptions (both instance and class ones).
Definition: evas_object_smart.c:1100
ecore_evas_get
EAPI Evas * ecore_evas_get(const Ecore_Evas *ee)
Gets an Ecore_Evas's Evas.
Definition: ecore_evas.c:1320
evas_object_geometry_get
void evas_object_geometry_get(const Evas_Object *eo_obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h)
Retrieves the position and (rectangular) size of the given Evas object.
Definition: evas_object_main.c:1374
evas_object_event_callback_add
void evas_object_event_callback_add(Evas_Object *eo_obj, Evas_Callback_Type type, Evas_Object_Event_Cb func, const void *data)
Add (register) a callback function to a given Evas object event.
Definition: evas_callbacks.c:482
EVAS_CALLBACK_KEY_DOWN
Key Press Event.
Definition: Evas_Common.h:414
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.
Definition: efl_canvas_object_eo.legacy.c:100
_Evas_Event_Key_Down::key
const char * key
The logical key : (eg shift+1 == exclamation)
Definition: Evas_Legacy.h:320
evas_object_smart_member_del
void evas_object_smart_member_del(Evas_Object *eo_obj)
Removes a member object from a given smart object.
Definition: evas_object_smart.c:337
ecore_main_loop_begin
void ecore_main_loop_begin(void)
Runs the application main loop.
Definition: ecore_main.c:1279
_Evas_Smart_Interface
Definition: Evas_Common.h:1977
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.
Definition: efl_canvas_object_eo.legacy.c:39
evas_object_show
void evas_object_show(Evas_Object *eo_obj)
Makes the given Evas object visible.
Definition: evas_object_main.c:1853
Evas
Eo Evas
Definition: Evas_Common.h:158
EINA_TRUE
#define EINA_TRUE
Definition: eina_types.h:508
evas_object_data_set
void evas_object_data_set(Evas_Object *eo_obj, const char *key, const void *data)
Set an attached data pointer to an object with a given string key.
Definition: evas_data.c:5
evas_object_event_callback_del
void * evas_object_event_callback_del(Evas_Object *obj, Evas_Callback_Type type, Evas_Object_Event_Cb func)
Delete a callback function from an object.
Definition: evas_callbacks.c:517
_Evas_Smart_Class::hide
void(* hide)(Evas_Object *o)
code to be run when hiding object on a canvas
Definition: Evas_Common.h:1945
Eina_Bool
unsigned char Eina_Bool
Definition: eina_types.h:496
evas_object_del
void evas_object_del(Evas_Object *obj)
Marks the given Evas object for deletion (when Evas will free its memory).
Definition: evas_object_main.c:962
evas_object_rectangle_add
Evas_Object * evas_object_rectangle_add(Evas *e)
Adds a rectangle to the given evas.
Definition: evas_object_rectangle.c:78
_Evas_Smart_Class
Definition: Evas_Common.h:1936
Evas_Coord
int Evas_Coord
Type used for coordinates (in pixels, int).
Definition: Evas_Common.h:111
evas_object_smart_changed
void evas_object_smart_changed(Evas_Object *obj)
Mark smart object as changed, dirty.
Definition: efl_canvas_group_eo.legacy.c:15
EVAS_CALLBACK_FREE
Object Being Freed (Called after Del)
Definition: Evas_Common.h:413
evas_object_smart_add
Evas_Object * evas_object_smart_add(Evas *eo_e, Evas_Smart *s)
Instantiates a new smart object described by s.
Definition: evas_object_smart.c:694
ecore_evas_callback_destroy_set
EAPI void ecore_evas_callback_destroy_set(Ecore_Evas *ee, Ecore_Evas_Event_Cb func)
Sets a callback for Ecore_Evas destroy events.
Definition: ecore_evas.c:1205
ecore_evas_show
EAPI void ecore_evas_show(Ecore_Evas *ee)
Shows an Ecore_Evas' window.
Definition: ecore_evas.c:1500
evas_object_smart_member_add
void evas_object_smart_member_add(Evas_Object *eo_obj, Evas_Object *smart_obj)
Set an Evas object as a member of a given smart object.
Definition: evas_object_smart.c:204
evas_object_color_set
void evas_object_color_set(Evas_Object *obj, int r, int g, int b, int a)
Sets the general/main color of the given Evas object to the given one.
Definition: evas_object_main.c:2063
EVAS_SMART_SUBCLASS_IFACE_NEW
#define EVAS_SMART_SUBCLASS_IFACE_NEW(smart_name, prefix, api_type, parent_type, parent_func, cb_desc, ifaces)
Definition: Evas_Common.h:2247
evas_object_smart_clipped_clipper_get
Evas_Object * evas_object_smart_clipped_clipper_get(const Evas_Object *obj)
Get the clipper object for the given clipped smart object.
Definition: evas_object_smart_clipped.c:14
_Evas_Smart_Class::add
void(* add)(Evas_Object *o)
code to be run when adding object to a canvas
Definition: Evas_Common.h:1940