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 _changed_cb(void *data, Evas_Object *obj, void *event_info)
  16 {
  17    double val = elm_slider_value_get(obj);
  18    printf("Changed to %1.2f\n", val);
  19 }
  20
  21 static void
  22 _delay_changed_cb(void *data, Evas_Object *obj, void *event_info)
  23 {
  24    double val = elm_slider_value_get(obj);
  25    printf("Delay changed to %1.2f\n", val);
  26 }
  27
  28 static char*
  29 _indicator_format(double val)
  30 {
  31    char *indicator = malloc(sizeof(char) * 32);
  32    snprintf(indicator, 32, "%1.2f u", val);
  33    return indicator;
  34 }
  35
  36 static void
  37 _indicator_free(char *str)
  38 {
  39    free(str);
  40 }
  41
  42 EAPI_MAIN int
  43 elm_main(int argc, char **argv)
  44 {
  45    Evas_Object *win, *bx, *sl, *ic;
  46
  47    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
  48
  49    win = elm_win_util_standard_add("slider", "Slider Example");
  50    elm_win_autodel_set(win, EINA_TRUE);
  51
  52    bx = elm_box_add(win);
  53    evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  54    elm_win_resize_object_add(win, bx);
  55    evas_object_show(bx);
  56
  57    /* default */
  58    sl = elm_slider_add(win);
  59    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
  60    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  61    elm_box_pack_end(bx, sl);
  62    evas_object_show(sl);
  63
  64    /* with icon, end and label */
  65    sl = elm_slider_add(win);
  66    elm_object_text_set(sl, "Counter");
  67
  68    ic = elm_icon_add(win);
  69    elm_icon_standard_set(ic, "home");
  70    elm_image_resizable_set(ic, EINA_FALSE, EINA_FALSE);
  71    elm_object_part_content_set(sl, "icon", ic);
  72
  73    ic = elm_icon_add(win);
  74    elm_icon_standard_set(ic, "folder");
  75    elm_image_resizable_set(ic, EINA_FALSE, EINA_FALSE);
  76    elm_object_part_content_set(sl, "end", ic);
  77
  78    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
  79    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  80    elm_box_pack_end(bx, sl);
  81    evas_object_show(sl);
  82
  83    /* value set and span size */
  84    sl = elm_slider_add(win);
  85    elm_slider_value_set(sl, 1);
  86    elm_slider_span_size_set(sl, 200);
  87    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
  88    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  89    elm_box_pack_end(bx, sl);
  90    evas_object_show(sl);
  91
  92    /* with unit label and min - max */
  93    sl = elm_slider_add(win);
  94    elm_slider_unit_format_set(sl, "%1.0f units");
  95    elm_slider_min_max_set(sl, 0, 100);
  96    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
  97    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
  98    elm_box_pack_end(bx, sl);
  99    evas_object_show(sl);
 100
 101    /* with indicator label and inverted */
 102    sl = elm_slider_add(win);
 103    elm_slider_indicator_format_set(sl, "%1.2f");
 104    elm_slider_inverted_set(sl, EINA_TRUE);
 105    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
 106    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 107    elm_box_pack_end(bx, sl);
 108    evas_object_show(sl);
 109
 110    /* vertical with indicator format func */
 111    sl = elm_slider_add(win);
 112    elm_slider_horizontal_set(sl, EINA_FALSE);
 113    elm_slider_indicator_format_function_set(sl, _indicator_format,
 114                                             _indicator_free);
 115    evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL);
 116    evas_object_size_hint_weight_set(sl, 0, EVAS_HINT_EXPAND);
 117    elm_box_pack_end(bx, sl);
 118    evas_object_show(sl);
 119
 120    /* callbacks */
 121    sl = elm_slider_add(win);
 122    elm_slider_unit_format_set(sl, "%1.3f units");
 123    evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5);
 124    evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 125    elm_box_pack_end(bx, sl);
 126    evas_object_show(sl);
 127    evas_object_smart_callback_add(sl, "changed", _changed_cb, NULL);
 128    evas_object_smart_callback_add(sl, "delay,changed", _delay_changed_cb, NULL);
 129
 130    evas_object_show(win);
 131
 132    elm_run();
 133
 134    return 0;
 135 }
 136 ELM_MAIN()