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 -g `pkg-config --cflags --libs elementary` slideshow_example.c -o slideshow_example
   9  * @endverbatim
  10  */
  11
  12 #include <Elementary.h>
  13 #ifdef HAVE_CONFIG_H
  14 # include "elementary_config.h"
  15 #else
  16 # define __UNUSED__
  17 # define PACKAGE_DATA_DIR "../../data"
  18 #endif
  19
  20 static void
  21 _on_done(void        *data __UNUSED__,
  22          Evas_Object *obj __UNUSED__,
  23          void        *event_info __UNUSED__)
  24 {
  25    elm_exit();
  26 }
  27
  28 static Evas_Object *slideshow, *bt_start, *bt_stop;
  29 static Elm_Slideshow_Item_Class itc;
  30
  31 static const char *img1 = PACKAGE_DATA_DIR "/images/logo.png";
  32 static const char *img2 = PACKAGE_DATA_DIR "/images/plant_01.jpg";
  33 static const char *img3 = PACKAGE_DATA_DIR "/images/rock_01.jpg";
  34 static const char *img4 = PACKAGE_DATA_DIR "/images/rock_02.jpg";
  35 static const char *img5 = PACKAGE_DATA_DIR "/images/sky_01.jpg";
  36 static const char *img6 = PACKAGE_DATA_DIR "/images/sky_04.jpg";
  37 static const char *img7 = PACKAGE_DATA_DIR "/images/wood_01.jpg";
  38 static const char *img8 = PACKAGE_DATA_DIR "/images/mystrale.jpg";
  39 static const char *img9 = PACKAGE_DATA_DIR "/images/mystrale_2.jpg";
  40
  41 static void
  42 _notify_show(void        *data,
  43              Evas        *e __UNUSED__,
  44              Evas_Object *obj __UNUSED__,
  45              void        *event_info __UNUSED__)
  46 {
  47    evas_object_show(data);
  48 }
  49
  50 /* jump to next item, cyclically */
  51 static void
  52 _next(void        *data,
  53       Evas_Object *obj __UNUSED__,
  54       void        *event_info __UNUSED__)
  55 {
  56    elm_slideshow_next(data);
  57 }
  58
  59 static void
  60 _previous(void        *data,
  61           Evas_Object *obj __UNUSED__,
  62           void        *event_info __UNUSED__)
  63 {
  64    elm_slideshow_previous(data);
  65 }
  66
  67 static void
  68 _first(void        *data,
  69        Evas_Object *obj __UNUSED__,
  70        void        *event_info __UNUSED__)
  71 {
  72    elm_slideshow_item_show(data);
  73 }
  74
  75 static void
  76 _last(void        *data,
  77       Evas_Object *obj __UNUSED__,
  78       void        *event_info __UNUSED__)
  79 {
  80    elm_slideshow_item_show(data);
  81 }
  82
  83 static void
  84 _mouse_in(void        *data,
  85           Evas        *e __UNUSED__,
  86           Evas_Object *obj __UNUSED__,
  87           void        *event_info __UNUSED__)
  88 {
  89    elm_notify_timeout_set(data, 0.0);
  90    evas_object_show(data);
  91 }
  92
  93 static void
  94 _mouse_out(void        *data,
  95            Evas        *e __UNUSED__,
  96            Evas_Object *obj __UNUSED__,
  97            void        *event_info __UNUSED__)
  98 {
  99    elm_notify_timeout_set(data, 3.0);
 100 }
 101
 102 /* transition changed */
 103 static void
 104 _transition_select(void        *data,
 105            Evas_Object *obj,
 106            void        *event_info __UNUSED__)
 107 {
 108    elm_slideshow_transition_set(slideshow, data);
 109    elm_object_text_set(obj, data);
 110 }
 111
 112 static void
 113 _layout_select(void        *data,
 114                Evas_Object *obj,
 115                void        *event_info __UNUSED__)
 116 {
 117    elm_slideshow_layout_set(slideshow, data);
 118    elm_object_text_set(obj, data);
 119 }
 120
 121 /* start the show! */
 122 static void
 123 _start(void        *data,
 124        Evas_Object *obj __UNUSED__,
 125        void        *event_info __UNUSED__)
 126 {
 127    elm_slideshow_timeout_set(slideshow, elm_spinner_value_get(data));
 128
 129    elm_object_disabled_set(bt_start, EINA_TRUE);
 130    elm_object_disabled_set(bt_stop, EINA_FALSE);
 131 }
 132
 133 static void
 134 _stop(void        *data __UNUSED__,
 135       Evas_Object *obj __UNUSED__,
 136       void        *event_info __UNUSED__)
 137 {
 138    elm_slideshow_timeout_set(slideshow, 0.0);
 139    elm_object_disabled_set(bt_start, EINA_FALSE);
 140    elm_object_disabled_set(bt_stop, EINA_TRUE);
 141 }
 142
 143 /* slideshow transition time has changed */
 144 static void
 145 _spin(void        *data,
 146       Evas_Object *obj __UNUSED__,
 147       void        *event_info __UNUSED__)
 148 {
 149    if (elm_slideshow_timeout_get(slideshow) > 0)
 150      elm_slideshow_timeout_set(slideshow, elm_spinner_value_get(data));
 151 }
 152
 153 /* get our images to make slideshow items */
 154 static Evas_Object *
 155 _get(void        *data,
 156      Evas_Object *obj)
 157 {
 158    Evas_Object *photo = elm_photo_add(obj);
 159    elm_photo_file_set(photo, data);
 160    elm_photo_fill_inside_set(photo, EINA_TRUE);
 161    elm_object_style_set(photo, "shadow");
 162
 163    return photo;
 164 }
 165
 166 /* ordering alphabetically */
 167 static int
 168 _cmp_func(const void *data1,
 169           const void *data2)
 170 {
 171    const char *img_path1, *img_path2;
 172
 173    const Elm_Object_Item *slide_it1 = data1;
 174    const Elm_Object_Item *slide_it2 = data2;
 175
 176    img_path1 = elm_object_item_data_get(slide_it1);
 177    img_path2 = elm_object_item_data_get(slide_it2);
 178
 179    return strcasecmp(img_path1, img_path2);
 180 }
 181
 182 int
 183 elm_main(int    argc __UNUSED__,
 184          char **argv __UNUSED__)
 185 {
 186    Evas_Object *win, *bg, *notify, *bx, *bt, *hv, *spin;
 187    Elm_Object_Item *slide_first, *slide_last, *slide_it;
 188    const char *transition, *layout;
 189    const Eina_List *l, *list;
 190
 191    win = elm_win_add(NULL, "slideshow", ELM_WIN_BASIC);
 192    elm_win_title_set(win, "Slideshow example");
 193    evas_object_smart_callback_add(win, "delete,request", _on_done, NULL);
 194
 195    bg = elm_bg_add(win);
 196    elm_win_resize_object_add(win, bg);
 197    evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 198    evas_object_show(bg);
 199
 200    slideshow = elm_slideshow_add(win);
 201    elm_slideshow_loop_set(slideshow, EINA_TRUE);
 202    elm_win_resize_object_add(win, slideshow);
 203    evas_object_size_hint_weight_set(slideshow,
 204                                     EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 205    evas_object_show(slideshow);
 206
 207    itc.func.get = _get;
 208    itc.func.del = NULL;
 209
 210    slide_first = elm_slideshow_item_sorted_insert(slideshow, &itc, img1, _cmp_func);
 211    elm_slideshow_item_sorted_insert(slideshow, &itc, img2, _cmp_func);
 212    elm_slideshow_item_sorted_insert(slideshow, &itc, img3, _cmp_func);
 213    elm_slideshow_item_sorted_insert(slideshow, &itc, img4, _cmp_func);
 214    elm_slideshow_item_sorted_insert(slideshow, &itc, img5, _cmp_func);
 215    elm_slideshow_item_sorted_insert(slideshow, &itc, img6, _cmp_func);
 216    elm_slideshow_item_sorted_insert(slideshow, &itc, img7, _cmp_func);
 217    elm_slideshow_item_sorted_insert(slideshow, &itc, img8, _cmp_func);
 218    slide_last = elm_slideshow_item_add(slideshow, &itc, img9);
 219
 220    list = elm_slideshow_items_get(slideshow);
 221    fprintf(stdout, "List of items in the slideshow:\n");
 222    EINA_LIST_FOREACH(list, l, slide_it)
 223      fprintf(stdout, "\t%s\n",
 224              (const char *)elm_object_item_data_get(slide_it));
 225
 226    notify = elm_notify_add(win);
 227    elm_notify_orient_set(notify, ELM_NOTIFY_ORIENT_BOTTOM);
 228    elm_win_resize_object_add(win, notify);
 229    elm_notify_timeout_set(notify, 3.0);
 230
 231    bx = elm_box_add(win);
 232    elm_box_horizontal_set(bx, EINA_TRUE);
 233    elm_object_content_set(notify, bx);
 234    evas_object_show(bx);
 235
 236    evas_object_event_callback_add(bx, EVAS_CALLBACK_MOUSE_IN, _mouse_in,
 237                                   notify);
 238    evas_object_event_callback_add(bx, EVAS_CALLBACK_MOUSE_OUT, _mouse_out,
 239                                   notify);
 240
 241    bt = elm_button_add(win);
 242    elm_object_text_set(bt, "Previous");
 243    evas_object_smart_callback_add(bt, "clicked", _previous, slideshow);
 244    elm_box_pack_end(bx, bt);
 245    evas_object_show(bt);
 246
 247    bt = elm_button_add(win);
 248    elm_object_text_set(bt, "Next");
 249    evas_object_smart_callback_add(bt, "clicked", _next, slideshow);
 250    elm_box_pack_end(bx, bt);
 251    evas_object_show(bt);
 252
 253    bt = elm_button_add(win);
 254    elm_object_text_set(bt, "First");
 255    evas_object_smart_callback_add(bt, "clicked", _first, slide_first);
 256    elm_box_pack_end(bx, bt);
 257    evas_object_show(bt);
 258
 259    bt = elm_button_add(win);
 260    elm_object_text_set(bt, "Last");
 261    evas_object_smart_callback_add(bt, "clicked", _last, slide_last);
 262    elm_box_pack_end(bx, bt);
 263    evas_object_show(bt);
 264
 265    hv = elm_hoversel_add(win);
 266    elm_box_pack_end(bx, hv);
 267    elm_hoversel_hover_parent_set(hv, win);
 268    EINA_LIST_FOREACH(elm_slideshow_transitions_get(slideshow), l, transition)
 269      elm_hoversel_item_add(hv, transition, NULL, 0, _transition_select,
 270                            transition);
 271    elm_object_text_set(hv, eina_list_data_get(
 272                          elm_slideshow_transitions_get(slideshow)));
 273    evas_object_show(hv);
 274
 275    hv = elm_hoversel_add(win);
 276    elm_box_pack_end(bx, hv);
 277    elm_hoversel_hover_parent_set(hv, win);
 278    EINA_LIST_FOREACH(elm_slideshow_layouts_get(slideshow), l, layout)
 279      elm_hoversel_item_add(hv, layout, NULL, 0, _layout_select, layout);
 280    elm_object_text_set(hv, elm_slideshow_layout_get(slideshow));
 281    evas_object_show(hv);
 282
 283    spin = elm_spinner_add(win);
 284    elm_spinner_label_format_set(spin, "%2.0f s");
 285    evas_object_smart_callback_add(spin, "changed", _spin, spin);
 286    elm_spinner_step_set(spin, 1);
 287    elm_spinner_min_max_set(spin, 1, 30);
 288    elm_spinner_value_set(spin, 3);
 289    elm_box_pack_end(bx, spin);
 290    evas_object_show(spin);
 291
 292    bt = elm_button_add(win);
 293    bt_start = bt;
 294    elm_object_text_set(bt, "Start");
 295    evas_object_smart_callback_add(bt, "clicked", _start, spin);
 296    elm_box_pack_end(bx, bt);
 297    evas_object_show(bt);
 298
 299    bt = elm_button_add(win);
 300    bt_stop = bt;
 301    elm_object_text_set(bt, "Stop");
 302    evas_object_smart_callback_add(bt, "clicked", _stop, spin);
 303    elm_box_pack_end(bx, bt);
 304    elm_object_disabled_set(bt, EINA_TRUE);
 305    evas_object_show(bt);
 306
 307    evas_object_event_callback_add(slideshow, EVAS_CALLBACK_MOUSE_UP,
 308                                   _notify_show, notify);
 309    evas_object_event_callback_add(slideshow, EVAS_CALLBACK_MOUSE_MOVE,
 310                                   _notify_show, notify);
 311
 312    _notify_show(notify, NULL, NULL, NULL);
 313
 314    evas_object_resize(win, 600, 400);
 315    evas_object_show(win);
 316
 317    elm_run();
 318    return 0;
 319 }
 320
 321 ELM_MAIN()