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/**
* 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 <Ecore.h>
#include <Ecore_Evas.h>
#include <Edje.h>
#include <stdio.h>
#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;
}
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