edje-basic.c

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edje-basic.c
#ifdef HAVE_CONFIG_H
# include "config.h"
#else
# define EINA_UNUSED
#endif
#ifndef PACKAGE_DATA_DIR
#define PACKAGE_DATA_DIR "."
#endif
#include <stdio.h>
#include <Eina.h>
#include <Ecore.h>
#include <Ecore_Evas.h>
#include <Edje.h>
#define WIDTH (300)
#define HEIGHT (300)
static const char commands[] = \
"commands are:\n"
"\ts - change Edje's global scaling factor\n"
"\tr - change center rectangle's scaling factor\n"
"\tEsc - exit\n"
"\th - print help\n";
static void
_on_keydown(void *data,
Evas *evas EINA_UNUSED,
Evas_Object *o EINA_UNUSED,
void *einfo)
{
Evas_Event_Key_Down *ev;
Evas_Object *edje_obj;
ev = (Evas_Event_Key_Down *)einfo;
edje_obj = (Evas_Object *)data;
if (strcmp(ev->key, "h") == 0) /* print help */
{
printf(commands);
return;
}
else if (strcmp(ev->key, "s") == 0) /* global scaling factor */
{
double scale = edje_scale_get();
printf("got scale %f\n", scale);
if (!EINA_DBL_EQ(scale, 1.0)) scale = 1.0;
else scale = 2.0;
edje_scale_set(scale);
printf("Setting global scaling factor to %f.\n", scale);
return;
}
else if (strcmp(ev->key, "r") == 0) /* individual scaling factor */
{
double scale = edje_object_scale_get(edje_obj);
printf("got scale %f\n", scale);
if (EINA_DBL_EQ(scale, 0)) scale = 1.0;
else if (EINA_DBL_EQ(scale, 1.0)) scale = 2.0;
else scale = 0.0;
edje_object_scale_set(edje_obj, scale);
printf("Setting center rectangle's scaling factor to %f.\n",
scale);
return;
}
else if (!strcmp(ev->key, "Escape"))
ecore_main_loop_quit();
else
{
printf("unhandled key: %s\n", ev->key);
printf(commands);
}
}
static void
_on_delete(Ecore_Evas *ee EINA_UNUSED)
{
ecore_main_loop_quit();
}
int
main(int argc EINA_UNUSED, char *argv[] EINA_UNUSED)
{
const char *img_file = PACKAGE_DATA_DIR"/red.png";
const char *edje_file = PACKAGE_DATA_DIR"/basic.edj";
Ecore_Evas *ee;
Evas *evas;
Evas_Object *bg;
Evas_Object *border;
Evas_Object *edje_obj;
int x;
int y;
int w;
int h;
if (!ecore_evas_init())
return EXIT_FAILURE;
if (!edje_init())
goto shutdown_ecore_evas;
/* this will give you a window with an Evas canvas under the first
* engine available */
ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
if (!ee) goto shutdown_edje;
ecore_evas_callback_delete_request_set(ee, _on_delete);
ecore_evas_title_set(ee, "Edje Basics Example");
evas = ecore_evas_get(ee);
bg = evas_object_rectangle_add(evas);
evas_object_color_set(bg, 255, 255, 255, 255); /* white bg */
evas_object_move(bg, 0, 0); /* at canvas' origin */
evas_object_resize(bg, WIDTH, HEIGHT); /* covers full canvas */
evas_object_show(bg);
ecore_evas_object_associate(ee, bg, ECORE_EVAS_OBJECT_ASSOCIATE_BASE);
evas_object_focus_set(bg, EINA_TRUE);
edje_obj = edje_object_add(evas);
/* exercising Edje loading error, on purpose */
if (!edje_object_file_set(edje_obj, edje_file, "unexistant_group"))
{
int err = edje_object_load_error_get(edje_obj);
const char *errmsg = edje_load_error_str(err);
fprintf(stderr, "Could not load 'unexistant_group' from basic.edj:"
" %s\n", errmsg);
}
if (!edje_object_file_set(edje_obj, edje_file, "example_group"))
{
int err = edje_object_load_error_get(edje_obj);
const char *errmsg = edje_load_error_str(err);
fprintf(stderr, "Could not load 'example_group' from basic.edj: %s\n",
errmsg);
evas_object_del(edje_obj);
goto shutdown_edje;
}
printf("Loaded Edje object bound to group 'example_group' from"
" file basic.edj with success!\n");
evas_object_move(edje_obj, 20, 20);
evas_object_resize(edje_obj, WIDTH - 40, HEIGHT - 40);
evas_object_show(edje_obj);
evas_object_event_callback_add(bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, edje_obj);
/* this is a border around the Edje object above, here just to
* emphasize its geometry */
border = evas_object_image_filled_add(evas);
evas_object_image_file_set(border, img_file, NULL);
evas_object_image_border_set(border, 2, 2, 2, 2);
evas_object_image_border_center_fill_set(border, EVAS_BORDER_FILL_NONE);
evas_object_resize(border, WIDTH - 40 + 4, HEIGHT - 40 + 4);
evas_object_move(border, 20 - 2, 20 - 2);
evas_object_show(border);
printf("'example_data' data field in group 'example_group' has "
"the value: %s\n", edje_object_data_get(edje_obj,
"example_data"));
printf("Testing if 'part_one' part exists: %s\n",
edje_object_part_exists(edje_obj, "part_one") ? "yes!" : "no");
edje_object_part_geometry_get(edje_obj, "part_one", &x, &y, &w, &h);
printf("The geometry of that part inside the Edje object's area "
"is: x = %d, y = %d, w = %d, h = %d\n", x, y, w, h);
evas_object_color_get(edje_object_part_object_get(edje_obj, "part_one"),
&x, &y, &w, &h);
printf("That part's color components are: r = %d, g = %d, b = %d,"
" a = %d\n", x, y, w, h);
edje_object_size_max_get(edje_obj, &w, &h);
printf("The Edje object's max. size is: %d, %d\n", w, h);
edje_object_size_min_get(edje_obj, &w, &h);
printf("The Edje object's min. size is: %d, %d\n", w, h);
edje_object_size_min_calc(edje_obj, &w, &h);
printf("The Edje object's min. size reported by min. size"
" calculation is: w = %d, h = %d\n", w, h);
edje_object_size_min_restricted_calc(edje_obj, &w, &h, 500, 500);
printf("The Edje object's min. size reported by *restricted* "
"min. size calculation is: w = %d, h = %d\n", w, h);
edje_object_parts_extends_calc(edje_obj, &x, &y, &w, &h);
printf("The Edje object's \"extended\" geometry is: x = %d, "
"y = %d, w = %d, h = %d\n", x, y, w, h);
printf(commands);
ecore_evas_show(ee);
ecore_main_loop_begin();
ecore_evas_free(ee);
ecore_evas_shutdown();
edje_shutdown();
return EXIT_SUCCESS;
shutdown_edje:
edje_shutdown();
shutdown_ecore_evas:
ecore_evas_shutdown();
return EXIT_FAILURE;
}
Ecore_Evas.h
Evas wrapper functions.
Edje.h
Edje Graphical Design Library.
Eina.h
Eina Utility library.
EVAS_CALLBACK_KEY_DOWN
@ EVAS_CALLBACK_KEY_DOWN
Key Press Event.
Definition: Evas_Common.h:430
ecore_evas_init
EAPI int ecore_evas_init(void)
Inits the Ecore_Evas system.
Definition: ecore_evas.c:602
ecore_evas_title_set
EAPI void ecore_evas_title_set(Ecore_Evas *ee, const char *t)
Sets the title of an Ecore_Evas' window.
Definition: ecore_evas.c:1527
ecore_evas_callback_delete_request_set
EAPI void ecore_evas_callback_delete_request_set(Ecore_Evas *ee, Ecore_Evas_Event_Cb func)
Sets a callback for Ecore_Evas delete request events.
Definition: ecore_evas.c:1176
ecore_evas_show
EAPI void ecore_evas_show(Ecore_Evas *ee)
Shows an Ecore_Evas' window.
Definition: ecore_evas.c:1480
ecore_evas_get
EAPI Evas * ecore_evas_get(const Ecore_Evas *ee)
Gets an Ecore_Evas's Evas.
Definition: ecore_evas.c:1300
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:1039
ecore_evas_shutdown
EAPI int ecore_evas_shutdown(void)
Shuts down the Ecore_Evas system.
Definition: ecore_evas.c:666
ecore_evas_object_associate
EAPI Eina_Bool ecore_evas_object_associate(Ecore_Evas *ee, Evas_Object *obj, Ecore_Evas_Object_Associate_Flags flags)
Associates the given object to this ecore evas.
Definition: ecore_evas_util.c:223
ecore_evas_free
EAPI void ecore_evas_free(Ecore_Evas *ee)
Frees an Ecore_Evas.
Definition: ecore_evas.c:1083
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:1321
ecore_main_loop_begin
void ecore_main_loop_begin(void)
Runs the application main loop.
Definition: ecore_main.c:1311
edje_shutdown
int edje_shutdown(void)
Shuts down the Edje library.
Definition: edje_main.c:262
edje_init
int edje_init(void)
Initializes the Edje library.
Definition: edje_main.c:35
edje_object_size_max_get
void edje_object_size_max_get(const Edje_Object *obj, int *maxw, int *maxh)
Gets the maximum size specified – as an EDC property – for a given Edje object.
Definition: edje_legacy.c:1154
edje_object_load_error_get
Edje_Load_Error edje_object_load_error_get(const Eo *obj)
Gets the (last) file loading error for a given Edje object.
Definition: edje_legacy.c:15
edje_object_add
Evas_Object * edje_object_add(Evas *evas)
Instantiates a new Edje object.
Definition: edje_smart.c:22
edje_object_part_object_get
const Efl_Canvas_Object * edje_object_part_object_get(const Evas_Object *obj, const char *part)
Gets a handle to the Evas object implementing a given Edje part, in an Edje object.
Definition: edje_util.c:2104
edje_object_size_min_get
void edje_object_size_min_get(const Edje_Object *obj, int *minw, int *minh)
Gets the minimum size specified – as an EDC property – for a given Edje object.
Definition: edje_legacy.c:1145
edje_object_part_geometry_get
Eina_Bool edje_object_part_geometry_get(const Edje_Object *obj, const char *part, int *x, int *y, int *w, int *h)
Retrieves the geometry of a given Edje part, in a given Edje object's group definition,...
Definition: edje_legacy.c:25
edje_object_size_min_restricted_calc
void edje_object_size_min_restricted_calc(Edje_Object *obj, int *minw, int *minh, int restrictedw, int restrictedh)
Calculates the minimum required size for a given Edje object.
Definition: edje_legacy.c:1065
edje_load_error_str
const char * edje_load_error_str(Edje_Load_Error error)
Converts the given Edje file load error code into a string describing it in English.
Definition: edje_load.c:108
edje_object_parts_extends_calc
Eina_Bool edje_object_parts_extends_calc(Edje_Object *obj, int *x, int *y, int *w, int *h)
Calculates the geometry of the region, relative to a given Edje object's area, occupied by all parts ...
Definition: edje_legacy.c:1083
edje_object_size_min_calc
void edje_object_size_min_calc(Edje_Object *obj, int *minw, int *minh)
Calculates the minimum required size for a given Edje object.
Definition: edje_legacy.c:1059
edje_object_file_set
Eina_Bool edje_object_file_set(Evas_Object *obj, const char *file, const char *group)
Sets the EDJ file (and group within it) to load an Edje object's contents from.
Definition: edje_smart.c:467
edje_object_part_exists
Eina_Bool edje_object_part_exists(const Eo *obj, const char *part)
Checks if a part exists in a given Edje object's group definition.
Definition: edje_legacy.c:1163
edje_object_scale_get
double edje_object_scale_get(const Edje_Object *obj)
Gets a given Edje object's scaling factor.
Definition: edje_legacy.c:215
edje_scale_get
double edje_scale_get(void)
Retrieves Edje's global scaling factor.
Definition: edje_util.c:401
edje_object_scale_set
Eina_Bool edje_object_scale_set(Edje_Object *obj, double scale)
Sets the scaling factor for a given Edje object.
Definition: edje_legacy.c:209
edje_scale_set
void edje_scale_set(double scale)
Sets Edje's global scaling factor.
Definition: edje_util.c:391
EINA_DBL_EQ
#define EINA_DBL_EQ(a, b)
Safe comparison of double.
Definition: eina_util.h:100
EINA_TRUE
#define EINA_TRUE
boolean value TRUE (numerical value 1)
Definition: eina_types.h:539
EINA_UNUSED
#define EINA_UNUSED
Used to indicate that a function parameter is purposely unused.
Definition: eina_types.h:339
Evas
Eo Evas
An opaque handle to an Evas canvas.
Definition: Evas_Common.h:163
evas_object_show
EVAS_API void evas_object_show(Evas_Object *eo_obj)
Makes the given Evas object visible.
Definition: evas_object_main.c:1814
evas_object_del
EVAS_API 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:928
evas_object_color_set
EVAS_API 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:2024
evas_object_color_get
EVAS_API 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:2071
evas_object_event_callback_add
EVAS_API 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:478
evas_object_move
EVAS_API 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.
Definition: evas_object_main.c:1171
Evas_Object
Efl_Canvas_Object Evas_Object
An Evas Object handle.
Definition: Evas_Common.h:185
evas_object_focus_set
EVAS_API 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_resize
EVAS_API void evas_object_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
Changes the size of the given Evas object.
Definition: evas_object_main.c:1236
evas_object_image_border_set
EVAS_API void evas_object_image_border_set(Evas_Object *obj, int l, int r, int t, int b)
Dimensions of this image's border, a region that does not scale with the center area.
Definition: evas_image_legacy.c:117
evas_object_image_border_center_fill_set
EVAS_API void evas_object_image_border_center_fill_set(Evas_Object *obj, Evas_Border_Fill_Mode fill)
Specifies how the center part of the object (not the borders) should be drawn when EFL is rendering i...
Definition: evas_image_legacy.c:145
evas_object_image_file_set
EVAS_API void evas_object_image_file_set(Evas_Object *obj, const char *file, const char *key)
Set the source file from where an image object must fetch the real image data (it may be an Eet file,...
Definition: evas_image_legacy.c:194
evas_object_image_filled_add
EVAS_API Evas_Object * evas_object_image_filled_add(Evas *eo_e)
Creates a new image object that automatically scales its bound image to the object's area,...
Definition: evas_image_legacy.c:35
EVAS_BORDER_FILL_NONE
@ EVAS_BORDER_FILL_NONE
Image's center region is not to be rendered.
Definition: Evas_Legacy.h:5721
evas_object_rectangle_add
EVAS_API Evas_Object * evas_object_rectangle_add(Evas *e)
Adds a rectangle to the given evas.
Definition: evas_object_rectangle.c:78
_Evas_Event_Key_Down
Key press event.
Definition: Evas_Legacy.h:314
_Evas_Event_Key_Down::key
const char * key
The logical key : (eg shift+1 == exclamation)
Definition: Evas_Legacy.h:320