acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_scroll_2.c (1743B)
      1 #include "../lv_examples.h"
      2 #if LV_BUILD_EXAMPLES && LV_USE_FLEX
      3 
      4 static void sw_event_cb(lv_event_t * e)
      5 {
      6     lv_event_code_t code = lv_event_get_code(e);
      7     lv_obj_t * sw = lv_event_get_target(e);
      8 
      9     if(code == LV_EVENT_VALUE_CHANGED) {
     10         lv_obj_t * list = lv_event_get_user_data(e);
     11 
     12         if(lv_obj_has_state(sw, LV_STATE_CHECKED)) lv_obj_add_flag(list, LV_OBJ_FLAG_SCROLL_ONE);
     13         else lv_obj_clear_flag(list, LV_OBJ_FLAG_SCROLL_ONE);
     14     }
     15 }
     16 
     17 /**
     18  * Show an example to scroll snap
     19  */
     20 void lv_example_scroll_2(void)
     21 {
     22     lv_obj_t * panel = lv_obj_create(lv_scr_act());
     23     lv_obj_set_size(panel, 280, 120);
     24     lv_obj_set_scroll_snap_x(panel, LV_SCROLL_SNAP_CENTER);
     25     lv_obj_set_flex_flow(panel, LV_FLEX_FLOW_ROW);
     26     lv_obj_align(panel, LV_ALIGN_CENTER, 0, 20);
     27 
     28     uint32_t i;
     29     for(i = 0; i < 10; i++) {
     30         lv_obj_t * btn = lv_btn_create(panel);
     31         lv_obj_set_size(btn, 150, lv_pct(100));
     32 
     33         lv_obj_t * label = lv_label_create(btn);
     34         if(i == 3) {
     35             lv_label_set_text_fmt(label, "Panel %"LV_PRIu32"\nno snap", i);
     36             lv_obj_clear_flag(btn, LV_OBJ_FLAG_SNAPPABLE);
     37         }
     38         else {
     39             lv_label_set_text_fmt(label, "Panel %"LV_PRIu32, i);
     40         }
     41 
     42         lv_obj_center(label);
     43     }
     44     lv_obj_update_snap(panel, LV_ANIM_ON);
     45 
     46 #if LV_USE_SWITCH
     47     /*Switch between "One scroll" and "Normal scroll" mode*/
     48     lv_obj_t * sw = lv_switch_create(lv_scr_act());
     49     lv_obj_align(sw, LV_ALIGN_TOP_RIGHT, -20, 10);
     50     lv_obj_add_event_cb(sw, sw_event_cb, LV_EVENT_ALL, panel);
     51     lv_obj_t * label = lv_label_create(lv_scr_act());
     52     lv_label_set_text(label, "One scroll");
     53     lv_obj_align_to(label, sw, LV_ALIGN_OUT_BOTTOM_MID, 0, 5);
     54 #endif
     55 }
     56 
     57 #endif