#include "../../../lvgl.h"
#if LV_USE_SLIDER && LV_BUILD_EXAMPLES

static void slider_event_cb(lv_obj_t * slider, lv_event_t event);

/**
 * Show the current value when the slider if pressed (using only styles).
 *
 */
void lv_example_slider_3(void)
{
    /* Create a slider in the center of the display */
    lv_obj_t * slider;
    slider = lv_slider_create(lv_scr_act(), NULL);
    lv_obj_align(slider, NULL, LV_ALIGN_CENTER, 0, 0);
    lv_obj_add_event_cb(slider, slider_event_cb, NULL);
    lv_slider_set_type(slider, LV_SLIDER_TYPE_RANGE);

    lv_slider_set_value(slider, 70, LV_ANIM_OFF);
    lv_slider_set_left_value(slider, 20, LV_ANIM_OFF);

    /*Now use only a local style.*/
    lv_obj_set_style_content_ofs_y(slider, LV_PART_INDICATOR, LV_STATE_DEFAULT, -20);
    lv_obj_set_style_content_color(slider, LV_PART_INDICATOR, LV_STATE_DEFAULT, lv_color_grey_darken_3());

    /*To update the value text*/
    lv_event_send(slider, LV_EVENT_VALUE_CHANGED, NULL);
}

static void slider_event_cb(lv_obj_t * slider, lv_event_t event)
{
    if(event == LV_EVENT_VALUE_CHANGED) {
        static char buf[8];
        lv_snprintf(buf, sizeof(buf), "%d - %d", lv_slider_get_value(slider), lv_slider_get_left_value(slider));
        lv_obj_set_style_content_text(slider, LV_PART_INDICATOR, LV_STATE_DEFAULT, buf);
    }
}

#endif