Swallow example 2
This example will show you how to load an image using evas and fill a swallow with it.It's basically almost like the last example, but with a minor change.
This variables are used to store the name of the image that is going to be used, the path to it and a variable that will store the error cause if something goes wrong.
Here it is:
char edje_file_path[PATH_MAX]; const char *img_file = "bubble.png"; Evas_Load_Error err;
Then we load the image with this command:
img = evas_object_image_filled_add(evas); evas_object_image_file_set(img, img_file_path, NULL);
To check if we had some problem we use:
err = evas_object_image_load_error_get(img); if (err != EVAS_LOAD_ERROR_NONE) { fprintf(stderr, "could not load image '%s'. error string is \"%s\"\n", img_file_path, evas_load_error_str(err)); goto free_prefix; }
Now we are going to swallow it and check if worked. If you notice we are using "part_one" as argument. We do this because we must explicit what part of our .edc file we want to swallow:
edje_object_part_swallow(edje_obj, "part_one", img); obj = edje_object_part_swallow_get(edje_obj, "part_one"); if(obj == img) printf("Swallowing worked!\n");
The example's window should look like this picture:

The complete .edc file:
collections { group { name: "example_group"; max: 500 500; min: 50 50; parts { part { name: "part_one"; type: SWALLOW; description { min: 50 50; state: "default" 0.0; rel1.relative: 0.0 0.0; rel2.relative: 1.0 1.0; } } } } }
And the source code:
#ifdef HAVE_CONFIG_H # include "config.h" #else # define __UNUSED__ #endif #include <Ecore.h> #include <Ecore_Evas.h> #include <Edje.h> #define WIDTH (300) #define HEIGHT (300) static void _on_delete(Ecore_Evas *ee __UNUSED__) { ecore_main_loop_quit(); } int main(int argc __UNUSED__, char *argv[]) { char edje_file_path[PATH_MAX]; char img_file_path[PATH_MAX]; const char *edje_file = "swallow.edj"; const char *img_file = "bubble.png"; Ecore_Evas *ee; Evas *evas; Evas_Object *bg; Evas_Object *img; Evas_Object *obj; Evas_Object *edje_obj; Eina_Prefix *pfx; Evas_Load_Error err; if (!ecore_evas_init()) return EXIT_FAILURE; if (!edje_init()) goto shutdown_ecore_evas; pfx = eina_prefix_new(argv[0], main, "EDJE_EXAMPLES", "edje/examples", edje_file, PACKAGE_BIN_DIR, PACKAGE_LIB_DIR, PACKAGE_DATA_DIR, PACKAGE_DATA_DIR); if (!pfx) goto shutdown_edje; /* 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 free_prefix; ecore_evas_callback_delete_request_set(ee, _on_delete); ecore_evas_title_set(ee, "Edje Swallow 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_data_set(ee, "background", bg); ecore_evas_object_associate(ee,bg, ECORE_EVAS_OBJECT_ASSOCIATE_BASE); edje_obj = edje_object_add(evas); snprintf(edje_file_path, sizeof(edje_file_path), "%s/examples/%s", eina_prefix_data_get(pfx), edje_file); edje_object_file_set(edje_obj, edje_file_path, "example_group"); evas_object_move(edje_obj, 20, 20); evas_object_resize(edje_obj, WIDTH - 40, HEIGHT - 40); evas_object_show(edje_obj); snprintf(img_file_path, sizeof(edje_file_path), "%s/examples/%s", eina_prefix_data_get(pfx), img_file); img = evas_object_image_filled_add(evas); evas_object_image_file_set(img, img_file_path, NULL); err = evas_object_image_load_error_get(img); if (err != EVAS_LOAD_ERROR_NONE) { fprintf(stderr, "could not load image '%s'. error string is \"%s\"\n", img_file_path, evas_load_error_str(err)); goto free_prefix; } edje_object_part_swallow(edje_obj, "part_one", img); obj = edje_object_part_swallow_get(edje_obj, "part_one"); if(obj == img) printf("Swallowing worked!\n"); ecore_evas_show(ee); ecore_main_loop_begin(); eina_prefix_free(pfx); ecore_evas_free(ee); ecore_evas_shutdown(); edje_shutdown(); return EXIT_SUCCESS; free_prefix: eina_prefix_free(pfx); shutdown_edje: edje_shutdown(); shutdown_ecore_evas: ecore_evas_shutdown(); return EXIT_FAILURE; }
To compile use this command:
* gcc -o edje-swallow2 edje-swallow2.c -DPACKAGE_BIN_DIR=\"/Where/enlightenment/is/installed/bin\" * -DPACKAGE_LIB_DIR=\"/Where/enlightenment/is/installed/lib\" * -DPACKAGE_DATA_DIR=\"/Where/enlightenment/is/installed/share\" * `pkg-config --cflags --libs evas ecore ecore-evas edje` * * edje_cc swallow.edc *