2 * Simple Edje example illustrating drag functions.
4 * You'll need at least one Evas engine built for it (excluding the
5 * buffer one). See stdout/stderr for output.
8 * edje_cc drag.edc && gcc -o drag-box drag-box.c `pkg-config --libs --cflags evas ecore ecore-evas edje`
19 #include <Ecore_Evas.h>
30 static const char commands[] = \
32 "\tDdown - set drag step to 1\n"
33 "\tUp - set drag step to -1\n"
34 "\tm - set drag value to 0.5\n"
35 "\tPrior - set drag page to -1\n"
36 "\tNext - set drag page to -1\n"
40 static const char *PARTNAME = "example/knob";
43 _on_destroy(Ecore_Evas *ee __UNUSED__)
45 ecore_main_loop_quit();
48 /* here just to keep our example's window size and background image's
49 * size in synchrony */
51 _on_canvas_resize(Ecore_Evas *ee)
54 Evas_Object *edje_obj;
58 bg = ecore_evas_data_get(ee, "background");
59 edje_obj = ecore_evas_data_get(ee, "edje_obj");
61 ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
62 evas_object_resize(bg, w, h);
63 evas_object_resize(edje_obj, w, h);
67 _on_bg_key_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
70 Evas_Event_Key_Down *ev;
71 Evas_Object *edje_obj;
73 ee = (Ecore_Evas *)data;
74 ev = (Evas_Event_Key_Down *)event_info;
75 edje_obj = ecore_evas_data_get(ee, "edje_obj");
77 if (!strcmp(ev->keyname, "h"))
79 fprintf(stdout, commands);
82 else if (!strcmp(ev->keyname, "Down"))
84 edje_object_part_drag_step(edje_obj, PARTNAME, 0, 1.0);
86 else if (!strcmp(ev->keyname, "Up"))
88 edje_object_part_drag_step(edje_obj, PARTNAME, 0, -1.0);
90 else if (!strcmp(ev->keyname, "m"))
92 edje_object_part_drag_value_set(edje_obj, PARTNAME, 0.0, 0.5);
94 else if (!strcmp(ev->keyname, "Prior"))
96 edje_object_part_drag_page(edje_obj, PARTNAME, 0.0, -1.0);
98 else if (!strcmp(ev->keyname, "Next"))
100 edje_object_part_drag_page(edje_obj, PARTNAME, 0.0, 1.0);
102 else if (!strcmp(ev->keyname, "Escape"))
103 ecore_main_loop_quit();
106 printf("unhandled key: %s\n", ev->keyname);
107 fprintf(stdout, commands);
112 _on_knob_moved(void *data __UNUSED__, Evas_Object *o, const char *emission __UNUSED__, const char *source __UNUSED__)
116 edje_object_part_drag_value_get(o, PARTNAME, NULL, &val);
117 printf("value changed to: %0.3f\n", val);
121 main(int argc __UNUSED__, char *argv[])
123 char edje_file_path[PATH_MAX];
124 const char *edje_file = "drag.edj";
128 Evas_Object *edje_obj;
131 if (!ecore_evas_init())
135 goto shutdown_ecore_evas;
137 pfx = eina_prefix_new(argv[0], main,
148 /* this will give you a window with an Evas canvas under the first
149 * engine available */
150 ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
154 ecore_evas_callback_destroy_set(ee, _on_destroy);
155 ecore_evas_callback_resize_set(ee, _on_canvas_resize);
156 ecore_evas_title_set(ee, "Edje Box Example");
158 evas = ecore_evas_get(ee);
160 bg = evas_object_rectangle_add(evas);
161 evas_object_color_set(bg, 255, 255, 255, 255);
162 evas_object_resize(bg, WIDTH, HEIGHT);
163 evas_object_focus_set(bg, EINA_TRUE);
164 evas_object_show(bg);
165 ecore_evas_data_set(ee, "background", bg);
167 evas_object_event_callback_add(bg, EVAS_CALLBACK_KEY_DOWN, _on_bg_key_down, ee);
169 edje_obj = edje_object_add(evas);
171 snprintf(edje_file_path, sizeof(edje_file_path),
172 "%s/examples/%s", eina_prefix_data_get(pfx), edje_file);
173 edje_object_file_set(edje_obj, edje_file_path, "example/group");
174 evas_object_move(edje_obj, 0, 0);
175 evas_object_resize(edje_obj, WIDTH, HEIGHT);
176 evas_object_show(edje_obj);
177 ecore_evas_data_set(ee, "edje_obj", edje_obj);
179 edje_object_part_drag_size_set(edje_obj, PARTNAME, 1.0, 0.4);
181 if (!edje_object_part_drag_step_set(edje_obj, PARTNAME, 0.0, 0.1))
182 printf("error when setting drag step size.\n");
184 if (!edje_object_part_drag_page_set(edje_obj, PARTNAME, 0.0, 0.3))
185 printf("error when setting drag page step size.\n");
187 edje_object_signal_callback_add(edje_obj, "drag", PARTNAME, _on_knob_moved, NULL);
189 fprintf(stdout, commands);
193 ecore_main_loop_begin();
195 eina_prefix_free(pfx);
197 ecore_evas_shutdown();
203 eina_prefix_free(pfx);
207 ecore_evas_shutdown();