src/examples/slideshow_example.c

   1 /**
   2  * Simple Elementary's <b>slide show widget</b> example, illustrating its
   3  * usage and API.
   4  *
   5  * See stdout/stderr for output. Compile with:
   6  *
   7  * @verbatim
   8  * gcc -o slideshow_example slideshow_example.c -g `pkg-config --cflags --libs elementary`
   9  * @endverbatim
  10  */
  11
  12 #include <Elementary.h>
  13
  14 #define IMG_NUM 8
  15
  16 static Evas_Object *slideshow, *bt_start, *bt_stop;
  17 static Elm_Slideshow_Item_Class itc;
  18
  19 static void
  20 _notify_show(void *data, Evas *e, Evas_Object *obj, void *event_info)
  21 {
  22    evas_object_show(data);
  23 }
  24
  25 /* jump to next item, cyclically */
  26 static void
  27 _next(void  *data, Evas_Object *obj, void *event_info)
  28 {
  29    elm_slideshow_next(data);
  30 }
  31
  32 static void
  33 _previous(void *data, Evas_Object *obj, void *event_info)
  34 {
  35    elm_slideshow_previous(data);
  36 }
  37
  38 static void
  39 _first(void *data, Evas_Object *obj, void *event_info)
  40 {
  41    elm_slideshow_item_show(data);
  42 }
  43
  44 static void
  45 _last(void *data, Evas_Object *obj, void *event_info)
  46 {
  47    elm_slideshow_item_show(data);
  48 }
  49
  50 static void
  51 _mouse_in_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
  52 {
  53    elm_notify_timeout_set(data, 0.0);
  54    evas_object_show(data);
  55 }
  56
  57 static void
  58 _mouse_out_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
  59 {
  60    elm_notify_timeout_set(data, 3.0);
  61 }
  62
  63 /* transition changed */
  64 static void
  65 _transition_select(void *data, Evas_Object *obj, void *event_info)
  66 {
  67    elm_slideshow_transition_set(slideshow, data);
  68    elm_object_text_set(obj, data);
  69 }
  70
  71 static void
  72 _layout_select(void *data, Evas_Object *obj, void *event_info)
  73 {
  74    elm_slideshow_layout_set(slideshow, data);
  75    elm_object_text_set(obj, data);
  76 }
  77
  78 /* start the show! */
  79 static void
  80 _start(void *data, Evas_Object *obj, void *event_info)
  81 {
  82    elm_slideshow_timeout_set(slideshow, elm_spinner_value_get(data));
  83
  84    elm_object_disabled_set(bt_start, EINA_TRUE);
  85    elm_object_disabled_set(bt_stop, EINA_FALSE);
  86 }
  87
  88 static void
  89 _stop(void *data, Evas_Object *obj, void *event_info)
  90 {
  91    elm_slideshow_timeout_set(slideshow, 0.0);
  92    elm_object_disabled_set(bt_start, EINA_FALSE);
  93    elm_object_disabled_set(bt_stop, EINA_TRUE);
  94 }
  95
  96 /* slideshow transition time has changed */
  97 static void
  98 _spin(void *data, Evas_Object *obj, void *event_info)
  99 {
 100    if (elm_slideshow_timeout_get(slideshow) > 0)
 101      elm_slideshow_timeout_set(slideshow, elm_spinner_value_get(data));
 102 }
 103
 104 /* get our images to make slideshow items */
 105 static Evas_Object *
 106 _get(void *data, Evas_Object *obj)
 107 {
 108    Evas_Object *photo = elm_photo_add(obj);
 109    elm_photo_file_set(photo, data);
 110    elm_photo_fill_inside_set(photo, EINA_TRUE);
 111    elm_object_style_set(photo, "shadow");
 112
 113    return photo;
 114 }
 115
 116 /* ordering alphabetically */
 117 static int
 118 _cmp_func(const void *data1, const void *data2)
 119 {
 120    const char *img_path1, *img_path2;
 121
 122    const Elm_Object_Item *slide_it1 = data1;
 123    const Elm_Object_Item *slide_it2 = data2;
 124
 125    img_path1 = elm_object_item_data_get(slide_it1);
 126    img_path2 = elm_object_item_data_get(slide_it2);
 127
 128    return strcasecmp(img_path1, img_path2);
 129 }
 130
 131 EAPI_MAIN int
 132 elm_main(int argc, char **argv)
 133 {
 134    Evas_Object *win, *notify, *bx, *bt, *hv, *spin;
 135    Elm_Object_Item *slide_first = NULL, *slide_last = NULL, *slide_it = NULL;
 136    const char *transition, *layout;
 137    const Eina_List *l, *list;
 138    const char *data_dir;
 139    char img[IMG_NUM][PATH_MAX];
 140    char *img_files[] =
 141      {
 142         "logo.png", "plant_01.jpg", "rock_01.jpg", "rock_02.jpg", "sky_01.jpg",
 143         "wood_01.jpg", "mystrale.jpg", "mystrale_2.jpg"
 144      };
 145    int i = 0;
 146
 147    elm_app_info_set(elm_main, "elementary", "images");
 148
 149    data_dir = elm_app_data_dir_get();
 150    for (i = 0; i < IMG_NUM; i++)
 151      snprintf(img[i], PATH_MAX, "%s/images/%s", data_dir, img_files[i]);
 152
 153    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
 154
 155    win = elm_win_util_standard_add("slideshow", "Slideshow example");
 156    elm_win_autodel_set(win, EINA_TRUE);
 157
 158    slideshow = elm_slideshow_add(win);
 159    elm_slideshow_loop_set(slideshow, EINA_TRUE);
 160    evas_object_size_hint_weight_set(slideshow,
 161                                     EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 162    elm_win_resize_object_add(win, slideshow);
 163    evas_object_show(slideshow);
 164
 165    itc.func.get = _get;
 166    itc.func.del = NULL;
 167
 168    for (i = 0; i < IMG_NUM; i++)
 169      {
 170         slide_it = elm_slideshow_item_sorted_insert(slideshow, &itc, img[i],
 171                                                     _cmp_func);
 172         if (!slide_first) slide_first = slide_it;
 173      }
 174    slide_last = slide_it;
 175
 176    list = elm_slideshow_items_get(slideshow);
 177    fprintf(stdout, "List of items in the slideshow:\n");
 178    EINA_LIST_FOREACH(list, l, slide_it)
 179      fprintf(stdout, "\t%s\n",
 180              (const char *)elm_object_item_data_get(slide_it));
 181
 182    notify = elm_notify_add(win);
 183    elm_notify_align_set(notify, 0.5, 1.0);
 184    evas_object_size_hint_weight_set(notify, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 185    elm_notify_timeout_set(notify, 3.0);
 186    evas_object_show(notify);
 187
 188    bx = elm_box_add(win);
 189    elm_box_horizontal_set(bx, EINA_TRUE);
 190    elm_object_content_set(notify, bx);
 191    evas_object_show(bx);
 192
 193    evas_object_event_callback_add(bx, EVAS_CALLBACK_MOUSE_IN,
 194                                   _mouse_in_cb, notify);
 195    evas_object_event_callback_add(bx, EVAS_CALLBACK_MOUSE_OUT,
 196                                   _mouse_out_cb, notify);
 197
 198    bt = elm_button_add(win);
 199    elm_object_text_set(bt, "First");
 200    evas_object_smart_callback_add(bt, "clicked", _first, slide_first);
 201    elm_box_pack_end(bx, bt);
 202    evas_object_show(bt);
 203
 204    bt = elm_button_add(win);
 205    elm_object_text_set(bt, "Previous");
 206    evas_object_smart_callback_add(bt, "clicked", _previous, slideshow);
 207    elm_box_pack_end(bx, bt);
 208    evas_object_show(bt);
 209
 210    bt = elm_button_add(win);
 211    elm_object_text_set(bt, "Next");
 212    evas_object_smart_callback_add(bt, "clicked", _next, slideshow);
 213    elm_box_pack_end(bx, bt);
 214    evas_object_show(bt);
 215
 216    bt = elm_button_add(win);
 217    elm_object_text_set(bt, "Last");
 218    evas_object_smart_callback_add(bt, "clicked", _last, slide_last);
 219    elm_box_pack_end(bx, bt);
 220    evas_object_show(bt);
 221
 222    hv = elm_hoversel_add(win);
 223    elm_box_pack_end(bx, hv);
 224    elm_hoversel_hover_parent_set(hv, win);
 225    EINA_LIST_FOREACH(elm_slideshow_transitions_get(slideshow), l, transition)
 226      elm_hoversel_item_add(hv, transition, NULL, 0, _transition_select,
 227                            transition);
 228    elm_object_text_set(hv, eina_list_data_get(
 229          elm_slideshow_transitions_get(slideshow)));
 230    evas_object_show(hv);
 231
 232    hv = elm_hoversel_add(win);
 233    elm_box_pack_end(bx, hv);
 234    elm_hoversel_hover_parent_set(hv, win);
 235    EINA_LIST_FOREACH(elm_slideshow_layouts_get(slideshow), l, layout)
 236      elm_hoversel_item_add(hv, layout, NULL, 0, _layout_select, layout);
 237    elm_object_text_set(hv, elm_slideshow_layout_get(slideshow));
 238    evas_object_show(hv);
 239
 240    spin = elm_spinner_add(win);
 241    elm_spinner_label_format_set(spin, "%2.0f s");
 242    evas_object_smart_callback_add(spin, "changed", _spin, spin);
 243    elm_spinner_step_set(spin, 1);
 244    elm_spinner_min_max_set(spin, 1, 30);
 245    elm_spinner_value_set(spin, 3);
 246    elm_box_pack_end(bx, spin);
 247    evas_object_show(spin);
 248
 249    bt = elm_button_add(win);
 250    bt_start = bt;
 251    elm_object_text_set(bt, "Start");
 252    evas_object_smart_callback_add(bt, "clicked", _start, spin);
 253    elm_box_pack_end(bx, bt);
 254    evas_object_show(bt);
 255
 256    bt = elm_button_add(win);
 257    bt_stop = bt;
 258    elm_object_text_set(bt, "Stop");
 259    evas_object_smart_callback_add(bt, "clicked", _stop, spin);
 260    elm_box_pack_end(bx, bt);
 261    elm_object_disabled_set(bt, EINA_TRUE);
 262    evas_object_show(bt);
 263
 264    evas_object_event_callback_add(slideshow, EVAS_CALLBACK_MOUSE_UP,
 265                                   _notify_show, notify);
 266    evas_object_event_callback_add(slideshow, EVAS_CALLBACK_MOUSE_MOVE,
 267                                   _notify_show, notify);
 268
 269    evas_object_resize(win, 600, 400);
 270    evas_object_show(win);
 271
 272    elm_run();
 273
 274    return 0;
 275 }
 276 ELM_MAIN()