From dd7595a3475407a7fa96a97393bae8c5220e8762 Mon Sep 17 00:00:00 2001 From: David Walter Seikel Date: Wed, 4 Jan 2012 18:41:13 +1000 Subject: Add the base Enlightenment Foundation Libraries - eina, eet, evas, ecore, embryo, and edje. Note that embryo wont be used, but I'm not sure yet if you can build edje without it. --- libraries/edje/src/examples/edje-basic.c | 226 +++++++++++++++++++++++++++++++ 1 file changed, 226 insertions(+) create mode 100644 libraries/edje/src/examples/edje-basic.c (limited to 'libraries/edje/src/examples/edje-basic.c') diff --git a/libraries/edje/src/examples/edje-basic.c b/libraries/edje/src/examples/edje-basic.c new file mode 100644 index 0000000..2a7a862 --- /dev/null +++ b/libraries/edje/src/examples/edje-basic.c @@ -0,0 +1,226 @@ +/** + * 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; +} + -- cgit v1.1