efl

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#include <Efl_Ui.h>
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#include <Elementary.h>
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static Efl_Ui_Spotlight_Container *container;
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static Eina_Bool play_state = EINA_FALSE;
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static Efl_Loop_Timer *show_timer = NULL;
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char *img_files[] = {
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  "logo.png",
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  "plant_01.jpg",
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  "rock_01.jpg",
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  "rock_02.jpg",
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  "sky_01.jpg",
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  "wood_01.jpg",
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  "mystrale.jpg",
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  "mystrale_2.jpg"
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};
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#define IMG_NUM 8
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static void
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_show_next(void *data EINA_UNUSED, const Efl_Event *ev EINA_UNUSED)
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{
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   if (!show_timer) return;
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   efl_del(show_timer);
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   show_timer = NULL;
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   int current_index = efl_pack_index_get(container, efl_ui_spotlight_active_element_get(container));
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   int new_index = (current_index + 1) % efl_content_count(container);
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   efl_ui_spotlight_active_element_set(container, efl_pack_content_get(container, new_index));
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}
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static void
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put_play(void)
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{
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   play_state = EINA_TRUE;
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   show_timer = efl_add(EFL_LOOP_TIMER_CLASS, container,
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                        efl_loop_timer_interval_set(efl_added, 2.0),
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                        efl_event_callback_add(efl_added, EFL_LOOP_TIMER_EVENT_TIMER_TICK, _show_next, NULL));
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}
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static void
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put_pause(void)
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{
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   play_state = EINA_FALSE;
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   if (show_timer)
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     efl_del(show_timer);
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   show_timer = NULL;
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}
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static void
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_container_end(void *data EINA_UNUSED, const Efl_Event *ev EINA_UNUSED)
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{
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   if (play_state)
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     {
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        show_timer = efl_add(EFL_LOOP_TIMER_CLASS, efl_app_main_get(),
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                             efl_loop_timer_interval_set(efl_added, 2.0),
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                             efl_event_callback_add(efl_added, EFL_LOOP_TIMER_EVENT_TIMER_TICK, _show_next, NULL));
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     }
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}
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static void
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_play_toggle(void *data EINA_UNUSED, const Efl_Event *ev)
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{
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   if (play_state)
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     {
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        put_pause();
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        efl_text_set(ev->object, "Play");
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     }
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   else
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     {
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        put_play();
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        efl_text_set(ev->object, "Pause");
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     }
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}
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static void
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efl_main(void *data EINA_UNUSED, const Efl_Event *ev EINA_UNUSED)
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{
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   Efl_Ui_Win *win;
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   Efl_Ui_Table *table;
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   elm_app_info_set(efl_main, "elementary", "images");
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   win = efl_new(EFL_UI_WIN_CLASS,
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                 efl_ui_win_autodel_set(efl_added, EINA_TRUE),
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                 efl_text_set(efl_added, "Slideshow Example")
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   );
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   table = efl_add(EFL_UI_TABLE_CLASS, win);
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   efl_content_set(win, table);
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   container = efl_add(EFL_UI_SPOTLIGHT_CONTAINER_CLASS, win,
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                       efl_event_callback_add(efl_added, EFL_UI_SPOTLIGHT_EVENT_TRANSITION_END, _container_end, NULL),
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                       efl_pack_table(table, efl_added, 0, 0, 1, 1));
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   efl_ui_spotlight_indicator_set(container, efl_new(EFL_UI_SPOTLIGHT_ICON_INDICATOR_CLASS));
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   efl_ui_spotlight_manager_set(container, efl_new(EFL_UI_SPOTLIGHT_FADE_MANAGER_CLASS));
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   for (int i = 0; i < IMG_NUM; i++)
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     {
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        char path[PATH_MAX];
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        snprintf(path, PATH_MAX, "%s/images/%s", elm_app_data_dir_get(), img_files[i]);
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        efl_add(EFL_UI_IMAGE_CLASS, container,
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                efl_file_set(efl_added, path),
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                efl_file_load(efl_added),
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                efl_pack_end(container, efl_added));
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     }
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   efl_add(EFL_UI_BUTTON_CLASS, table,
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           efl_gfx_hint_weight_set(efl_added, 1.0, 0.0),
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           efl_pack_table(table, efl_added, 0, 1, 1, 1),
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           efl_text_set(efl_added, "Play"),
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           efl_event_callback_add(efl_added, EFL_INPUT_EVENT_CLICKED, _play_toggle, NULL));
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   efl_gfx_entity_size_set(win, EINA_SIZE2D(200, 200));
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}
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EFL_MAIN();
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