edje-basic.c

- Main Page
- Related Pages
- Modules
- Namespaces
- Data Structures
- Files
- Examples

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 */
{
fprintf(stdout, commands);
return;
}
else if (strcmp(ev->key, "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;
}
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 (!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;
}
else if (!strcmp(ev->key, "Escape"))
ecore_main_loop_quit();
else
{
printf("unhandled key: %s\n", ev->key);
fprintf(stdout, 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;
}
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);
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);
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_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;
}