acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_snapshot_1.c (2080B)
      1 #include "../../lv_examples.h"
      2 #if LV_USE_SNAPSHOT && LV_BUILD_EXAMPLES
      3 
      4 static void event_cb(lv_event_t * e)
      5 {
      6     lv_obj_t * snapshot_obj = lv_event_get_user_data(e);
      7     lv_obj_t * img = lv_event_get_target(e);
      8 
      9     if(snapshot_obj) {
     10         lv_img_dsc_t * snapshot = (void *)lv_img_get_src(snapshot_obj);
     11         if(snapshot) {
     12             lv_snapshot_free(snapshot);
     13         }
     14 
     15         /*Update the snapshot, we know parent of object is the container.*/
     16         snapshot = lv_snapshot_take(img->parent, LV_IMG_CF_TRUE_COLOR_ALPHA);
     17         if(snapshot == NULL)
     18             return;
     19         lv_img_set_src(snapshot_obj, snapshot);
     20     }
     21 }
     22 
     23 void lv_example_snapshot_1(void)
     24 {
     25     LV_IMG_DECLARE(img_star);
     26     lv_obj_t * root = lv_scr_act();
     27     lv_obj_set_style_bg_color(root, lv_palette_main(LV_PALETTE_LIGHT_BLUE), 0);
     28 
     29     /*Create an image object to show snapshot*/
     30     lv_obj_t * snapshot_obj = lv_img_create(root);
     31     lv_obj_set_style_bg_color(snapshot_obj, lv_palette_main(LV_PALETTE_PURPLE), 0);
     32     lv_obj_set_style_bg_opa(snapshot_obj, LV_OPA_100, 0);
     33     lv_img_set_zoom(snapshot_obj, 128);
     34     lv_img_set_angle(snapshot_obj, 300);
     35 
     36     /*Create the container and its children*/
     37     lv_obj_t * container = lv_obj_create(root);
     38 
     39     lv_obj_center(container);
     40     lv_obj_set_size(container, 180, 180);
     41     lv_obj_set_flex_flow(container, LV_FLEX_FLOW_ROW_WRAP);
     42     lv_obj_set_flex_align(container, LV_FLEX_ALIGN_SPACE_EVENLY, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
     43     lv_obj_set_style_radius(container, 50, 0);
     44     lv_obj_t * img;
     45     int i;
     46     for(i = 0; i < 4; i++) {
     47         img = lv_img_create(container);
     48         lv_img_set_src(img, &img_star);
     49         lv_obj_set_style_bg_color(img, lv_color_black(), 0);
     50         lv_obj_set_style_bg_opa(img, LV_OPA_COVER, 0);
     51         lv_obj_set_style_transform_zoom(img, 400, LV_STATE_PRESSED);
     52         lv_obj_add_flag(img, LV_OBJ_FLAG_CLICKABLE);
     53         lv_obj_add_event_cb(img, event_cb, LV_EVENT_PRESSED, snapshot_obj);
     54         lv_obj_add_event_cb(img, event_cb, LV_EVENT_RELEASED, snapshot_obj);
     55     }
     56 }
     57 
     58 #endif