mobile/src/examples/slider_example.c

   1 /**
   2  * Simple Elementary's <b>slider widget</b> example, illustrating its
   3  * usage and API.
   4  *
   5  * See stdout/stderr for output. Compile with:
   6  *
   7  * @verbatim
   8  * gcc -g slider_example.c -o slider_example `pkg-config --cflags --libs elementary`
   9  * @endverbatim
  10  */
  11
  12 #include <Elementary.h>
  13
  14 static void
  15 _on_done(void *data,
  16         Evas_Object *obj,
  17         void *event_info)
  18 {
  19    elm_exit();
  20 }
  21
  22 static void
  23 _changed_cb(void *data, Evas_Object *obj, void *event_info)
  24 {
  25     double val = elm_slider_value_get(obj);
  26     printf("Changed to %1.2f\n", val);
  27 }
  28
  29 static void
  30 _delay_changed_cb(void *data, Evas_Object *obj, void *event_info)
  31 {
  32     double val = elm_slider_value_get(obj);
  33     printf("Delay changed to %1.2f\n", val);
  34 }
  35
  36 static char*
  37 _indicator_format(double val)
  38 {
  39    char *indicator = malloc(sizeof(char) * 32);
  40    snprintf(indicator, 32, "%1.2f u", val);
  41    return indicator;
  42 }
  43
  44 static void
  45 _indicator_free(char *str)
  46 {
  47    free(str);
  48 }
  49
  50 EAPI_MAIN int
  51 elm_main(int argc, char **argv)
  52 {
  53    Evas_Object *win, *bg, *bx, *sl, *ic;
  54
  55    win = elm_win_add(NULL, "slider", ELM_WIN_BASIC);
  56    elm_win_title_set(win, "Slider Example");
  57    evas_object_smart_callback_add(win, "delete,request", _on_done, NULL);
  58
  59    bg = elm_bg_add(win);
  60    elm_win_resize_object_add(win, bg);
  61    evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  62    evas_object_show(bg);
  63
  64    bx = elm_box_add(win);
  65    evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  66    elm_win_resize_object_add(win, bx);
  67    evas_object_show(bx);
  68
  69    /* default */
  70    sl = elm_slider_add(win);
  71    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
  72    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  73    elm_box_pack_end(bx, sl);
  74    evas_object_show(sl);
  75
  76    /* with icon, end and label */
  77    sl = elm_slider_add(win);
  78    elm_object_text_set(sl, "Counter");
  79
  80    ic = elm_icon_add(win);
  81    elm_icon_standard_set(ic, "home");
  82    elm_image_resizable_set(ic, EINA_FALSE, EINA_FALSE);
  83    elm_object_part_content_set(sl, "icon", ic);
  84
  85    ic = elm_icon_add(win);
  86    elm_icon_standard_set(ic, "folder");
  87    elm_image_resizable_set(ic, EINA_FALSE, EINA_FALSE);
  88    elm_object_part_content_set(sl, "end", ic);
  89
  90    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
  91    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  92    elm_box_pack_end(bx, sl);
  93    evas_object_show(sl);
  94
  95    /* value set and span size */
  96    sl = elm_slider_add(win);
  97    elm_slider_value_set(sl, 1);
  98    elm_slider_span_size_set(sl, 200);
  99    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
 100    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 101    elm_box_pack_end(bx, sl);
 102    evas_object_show(sl);
 103
 104    /* with unit label and min - max */
 105    sl = elm_slider_add(win);
 106    elm_slider_unit_format_set(sl, "%1.0f units");
 107    elm_slider_min_max_set(sl, 0, 100);
 108    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
 109    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 110    elm_box_pack_end(bx, sl);
 111    evas_object_show(sl);
 112
 113    /* with indicator label and inverted */
 114    sl = elm_slider_add(win);
 115    elm_slider_indicator_format_set(sl, "%1.2f");
 116    elm_slider_inverted_set(sl, EINA_TRUE);
 117    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
 118    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 119    elm_box_pack_end(bx, sl);
 120    evas_object_show(sl);
 121
 122    /* vertical with indicator format func */
 123    sl = elm_slider_add(win);
 124    elm_slider_horizontal_set(sl, EINA_FALSE);
 125    elm_slider_indicator_format_function_set(sl, _indicator_format,
 126                                             _indicator_free);
 127    evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
 128    evas_object_size_hint_weight_set(sl, 0, EVAS_HINT_EXPAND);
 129    elm_box_pack_end(bx, sl);
 130    evas_object_show(sl);
 131
 132    /* callbacks */
 133    sl = elm_slider_add(win);
 134    elm_slider_unit_format_set(sl, "%1.3f units");
 135    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
 136    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 137    elm_box_pack_end(bx, sl);
 138    evas_object_show(sl);
 139    evas_object_smart_callback_add(sl, "changed", _changed_cb, NULL);
 140    evas_object_smart_callback_add(sl, "delay,changed", _delay_changed_cb, NULL);
 141
 142    evas_object_show(win);
 143
 144    elm_run();
 145    elm_shutdown();
 146
 147    return 0;
 148 }
 149 ELM_MAIN()