efl

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//Compile with:
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// edje_cc signalsBubble.edc && gcc -o signals2 signals2.c `pkg-config --libs --cflags ecore ecore-evas edje`
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#else
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#define PACKAGE_EXAMPLES_DIR "."
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#define EINA_UNUSED
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#endif
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#ifndef PACKAGE_DATA_DIR
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#define PACKAGE_DATA_DIR "."
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#endif
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#include <Ecore.h>
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#include <Ecore_Evas.h>
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#include <Edje.h>
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#include <stdio.h>
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#define WIDTH     (700)
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#define HEIGHT    (700)
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static void
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_on_delete(Ecore_Evas *ee EINA_UNUSED)
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{
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   ecore_main_loop_quit();
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}
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/* mouse over signals */
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static void
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_on_mouse_over(void *data, Evas_Object *edje_obj,
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               const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
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{
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   Evas *evas;
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   int x, y, mouseX, mouseY;
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   evas = (Evas *) data;
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   evas_object_geometry_get(edje_obj, &x, &y, NULL, NULL);
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   evas_pointer_output_xy_get(evas, &mouseX, &mouseY);
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   if ((rand() % 2) == 0)
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     x += ((mouseX - x) + (x / 4 + mouseY / 2));
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   else
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     x -= ((mouseX - x) + (x / 4 + mouseY / 2));
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   if ((rand() % 2) == 0)
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     y += ((mouseY - y) + (y / 4 + mouseX / 2));
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   else
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     y -= ((mouseY - y) + (y / 4 + mouseX / 2));
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   if (x > WIDTH)
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     x = WIDTH;
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   else if (x < 0) x = 0;
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   if (y > HEIGHT)
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     y = HEIGHT;
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   else if (y < 0) y = 0;
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   printf("Moving object to - (%d,%d)\n", x, y);
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   evas_object_move(edje_obj, x, y);
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}
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int
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main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
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{
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   const char *edje_file = PACKAGE_DATA_DIR"/signalsBubble.edj";
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   Ecore_Evas *ee;
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   Evas *evas;
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   Evas_Object *bg;
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   Evas_Object *edje_obj;
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   if (!ecore_evas_init()) return EXIT_FAILURE;
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   if (!edje_init()) goto shutdown_ecore_evas;
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   ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
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   if (!ee) goto shutdown_edje;
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   ecore_evas_callback_delete_request_set(ee, _on_delete);
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   ecore_evas_title_set(ee, "Edje animations and signals");
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   evas = ecore_evas_get(ee);
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   bg = evas_object_rectangle_add(evas);
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   evas_object_color_set(bg, 255, 255, 255, 255); //White
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   evas_object_move(bg, 0, 0); //orign
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   evas_object_resize(bg, WIDTH, HEIGHT); //cover the window
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   evas_object_show(bg);
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   ecore_evas_object_associate(ee, bg, ECORE_EVAS_OBJECT_ASSOCIATE_BASE);
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   evas_object_focus_set(bg, EINA_TRUE);
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   edje_obj = edje_object_add(evas);
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   if (!edje_object_file_set(edje_obj, edje_file, "image_group"))
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     {
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        int err = edje_object_load_error_get(edje_obj);
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        const char *errmsg = edje_load_error_str(err);
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        fprintf(stderr, "Could not load the edje file - reason:%s\n", errmsg);
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        goto shutdown_edje;
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     }
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   edje_object_signal_callback_add(edje_obj, "mouse,move", "part_image",
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                                   _on_mouse_over, evas);
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   evas_object_resize(edje_obj, 63, 63);
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   evas_object_move(edje_obj, 50, 50);
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   evas_object_show(edje_obj);
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   ecore_evas_show(ee);
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   ecore_main_loop_begin();
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   ecore_evas_free(ee);
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   edje_shutdown();
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   ecore_evas_shutdown();
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   return EXIT_SUCCESS;
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   shutdown_edje: edje_shutdown();
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   shutdown_ecore_evas: ecore_evas_shutdown();
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   return EXIT_FAILURE;
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}
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