/** * Simple Edje example illustrating the very basic functions of the * library * * You'll need at least one Evas engine built for it (excluding the * buffer one). See stdout/stderr for output. * * @verbatim * gcc -o edje-basic edje-basic.c `pkg-config --libs --cflags evas ecore ecore-evas edje` * @endverbatim */ #ifdef HAVE_CONFIG_H #include "config.h" #else #define PACKAGE_EXAMPLES_DIR "." #define __UNUSED__ #endif #include #include #include #include #define WIDTH (300) #define HEIGHT (300) static const char *border_img_path = PACKAGE_EXAMPLES_DIR "/red.png"; static const char *edje_file_path = PACKAGE_EXAMPLES_DIR "/basic.edj"; static Ecore_Evas *ee; static Evas_Object *edje_obj; static const char commands[] = \ "commands are:\n" "\ts - change Edje's global scaling factor\n" "\tr - change center rectangle's scaling factor\n" "\th - print help\n"; static void _on_keydown(void *data __UNUSED__, Evas *evas __UNUSED__, Evas_Object *o __UNUSED__, void *einfo) { Evas_Event_Key_Down *ev = einfo; if (strcmp(ev->keyname, "h") == 0) /* print help */ { fprintf(stdout, commands); return; } if (strcmp(ev->keyname, "s") == 0) /* global scaling factor */ { double scale = edje_scale_get(); printf("got scale %f\n", scale); if (scale != 1.0) scale = 1.0; else scale = 2.0; edje_scale_set(scale); fprintf(stdout, "Setting global scaling factor to %f.\n", scale); return; } if (strcmp(ev->keyname, "r") == 0) /* individual scaling factor */ { double scale = edje_object_scale_get(edje_obj); printf("got scale %f\n", scale); if (!scale) scale = 1.0; else if (scale == 1.0) scale = 2.0; else scale = 0.0; edje_object_scale_set(edje_obj, scale); fprintf(stdout, "Setting center rectangle's scaling factor to %f.\n", scale); return; } } static void _on_delete(Ecore_Evas *ee __UNUSED__) { ecore_main_loop_quit(); } int main(void) { Evas_Object *border, *bg; int x, y, w, h; Evas *evas; if (!ecore_evas_init()) return EXIT_FAILURE; if (!edje_init()) return EXIT_FAILURE; /* 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 error; ecore_evas_callback_delete_request_set(ee, _on_delete); ecore_evas_title_set(ee, "Edje Basics Example"); ecore_evas_show(ee); 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); evas_object_event_callback_add( bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, NULL); edje_obj = edje_object_add(evas); /* exercising Edje loading error, on purpose */ if (!edje_object_file_set(edje_obj, edje_file_path, "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_path, "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 error_edj; } fprintf(stdout, "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); /* 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, border_img_path, 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); fprintf(stdout, "'example_data' data field in group 'example_group' has " "the value: %s\n", edje_object_data_get(edje_obj, "example_data")); fprintf(stdout, "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); fprintf(stdout, "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); fprintf(stdout, "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); fprintf(stdout, "The Edje object's max. size is: %d, %d\n", w, h); edje_object_size_min_get(edje_obj, &w, &h); fprintf(stdout, "The Edje object's min. size is: %d, %d\n", w, h); edje_object_size_min_calc(edje_obj, &w, &h); fprintf(stdout, "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); fprintf(stdout, "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); fprintf(stdout, "The Edje object's \"extended\" geometry is: x = %d, " "y = %d, w = %d, h = %d\n", x, y, w, h); fprintf(stdout, commands); ecore_main_loop_begin(); ecore_evas_free(ee); ecore_evas_shutdown(); edje_shutdown(); return 0; error: fprintf(stderr, "You got to have at least one evas engine built" " and linked up to ecore-evas for this example to run" " properly.\n"); ecore_evas_shutdown(); return -1; error_edj: fprintf(stderr, "Failed to load basic.edj!\n"); ecore_evas_shutdown(); return -2; }