src/examples/edje-swallow.c

   1 /**
   2  * Simple Edje example illustrating swallow functions.
   3  *
   4  * You'll need at least one Evas engine built for it (excluding the
   5  * buffer one). See stdout/stderr for output.
   6  *
   7  * @verbatim
   8  * edje_cc swallow.edc && gcc -o edje-swallow edje-swallow.c `pkg-config --libs --cflags evas ecore ecore-evas edje`
   9  * @endverbatim
  10  */
  11
  12 #ifdef HAVE_CONFIG_H
  13 # include "config.h"
  14 #else
  15 # define __UNUSED__
  16 #endif
  17
  18 #include <Ecore.h>
  19 #include <Ecore_Evas.h>
  20 #include <Edje.h>
  21
  22 #define WIDTH  (300)
  23 #define HEIGHT (300)
  24
  25 static void
  26 _on_delete(Ecore_Evas *ee __UNUSED__)
  27 {
  28    ecore_main_loop_quit();
  29 }
  30
  31 /* here just to keep our example's window size and background image's
  32  * size in synchrony */
  33 static void
  34 _on_canvas_resize(Ecore_Evas *ee)
  35 {
  36    Evas_Object *bg;
  37    int          w;
  38    int          h;
  39
  40    bg = ecore_evas_data_get(ee, "background");
  41    ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
  42    evas_object_resize(bg, w, h);
  43 }
  44
  45 int
  46 main(int argc __UNUSED__, char *argv[])
  47 {
  48    char         edje_file_path[PATH_MAX];
  49    const char  *edje_file = "swallow.edj";
  50    Ecore_Evas  *ee;
  51    Evas        *evas;
  52    Evas_Object *bg;
  53    Evas_Object *rect;
  54    Evas_Object *obj;
  55    Evas_Object *edje_obj;
  56    Eina_Prefix *pfx;
  57
  58    if (!ecore_evas_init())
  59      return EXIT_FAILURE;
  60
  61    if (!edje_init())
  62      goto shutdown_ecore_evas;
  63
  64    pfx = eina_prefix_new(argv[0], main,
  65                          "EDJE_EXAMPLES",
  66                          "edje/examples",
  67                          edje_file,
  68                          PACKAGE_BIN_DIR,
  69                          PACKAGE_LIB_DIR,
  70                          PACKAGE_DATA_DIR,
  71                          PACKAGE_DATA_DIR);
  72    if (!pfx)
  73      goto shutdown_edje;
  74
  75    /* this will give you a window with an Evas canvas under the first
  76     * engine available */
  77    ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
  78    if (!ee)
  79      goto free_prefix;
  80
  81    ecore_evas_callback_delete_request_set(ee, _on_delete);
  82    ecore_evas_callback_resize_set(ee, _on_canvas_resize);
  83    ecore_evas_title_set(ee, "Edje Swallow Example");
  84
  85    evas = ecore_evas_get(ee);
  86
  87    bg = evas_object_rectangle_add(evas);
  88    evas_object_color_set(bg, 255, 255, 255, 255); /* white bg */
  89    evas_object_move(bg, 0, 0); /* at canvas' origin */
  90    evas_object_resize(bg, WIDTH, HEIGHT); /* covers full canvas */
  91    evas_object_show(bg);
  92    ecore_evas_data_set(ee, "background", bg);
  93
  94    edje_obj = edje_object_add(evas);
  95
  96    snprintf(edje_file_path, sizeof(edje_file_path),
  97             "%s/examples/%s", eina_prefix_data_get(pfx), edje_file);
  98    edje_object_file_set(edje_obj, edje_file_path, "example_group");
  99    evas_object_move(edje_obj, 20, 20);
 100    evas_object_resize(edje_obj, WIDTH - 40, HEIGHT - 40);
 101    evas_object_show(edje_obj);
 102
 103    rect = evas_object_rectangle_add(evas);
 104    evas_object_color_set(rect, 255, 0, 0, 255);
 105    edje_object_part_swallow(edje_obj, "part_one", rect);
 106
 107    obj = edje_object_part_swallow_get(edje_obj, "part_one");
 108    if(obj == rect)
 109       printf("Swallowing worked!\n");
 110
 111    ecore_evas_show(ee);
 112
 113    ecore_main_loop_begin();
 114
 115    eina_prefix_free(pfx);
 116    ecore_evas_free(ee);
 117    ecore_evas_shutdown();
 118    edje_shutdown();
 119
 120    return EXIT_SUCCESS;
 121
 122  free_prefix:
 123    eina_prefix_free(pfx);
 124  shutdown_edje:
 125    edje_shutdown();
 126  shutdown_ecore_evas:
 127    ecore_evas_shutdown();
 128
 129    return EXIT_FAILURE;
 130 }