acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_table_2.c (3332B)
      1 #include "../../lv_examples.h"
      2 #if LV_USE_TABLE && LV_BUILD_EXAMPLES
      3 
      4 #define ITEM_CNT 200
      5 
      6 static void draw_event_cb(lv_event_t * e)
      7 {
      8     lv_obj_t * obj = lv_event_get_target(e);
      9     lv_obj_draw_part_dsc_t * dsc = lv_event_get_draw_part_dsc(e);
     10     /*If the cells are drawn...*/
     11     if(dsc->part == LV_PART_ITEMS) {
     12         bool chk = lv_table_has_cell_ctrl(obj, dsc->id, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
     13 
     14         lv_draw_rect_dsc_t rect_dsc;
     15         lv_draw_rect_dsc_init(&rect_dsc);
     16         rect_dsc.bg_color = chk ? lv_theme_get_color_primary(obj) : lv_palette_lighten(LV_PALETTE_GREY, 2);
     17         rect_dsc.radius = LV_RADIUS_CIRCLE;
     18 
     19         lv_area_t sw_area;
     20         sw_area.x1 = dsc->draw_area->x2 - 50;
     21         sw_area.x2 = sw_area.x1 + 40;
     22         sw_area.y1 = dsc->draw_area->y1 + lv_area_get_height(dsc->draw_area) / 2 - 10;
     23         sw_area.y2 = sw_area.y1 + 20;
     24         lv_draw_rect(dsc->draw_ctx, &rect_dsc, &sw_area);
     25 
     26         rect_dsc.bg_color = lv_color_white();
     27         if(chk) {
     28             sw_area.x2 -= 2;
     29             sw_area.x1 = sw_area.x2 - 16;
     30         }
     31         else {
     32             sw_area.x1 += 2;
     33             sw_area.x2 = sw_area.x1 + 16;
     34         }
     35         sw_area.y1 += 2;
     36         sw_area.y2 -= 2;
     37         lv_draw_rect(dsc->draw_ctx, &rect_dsc, &sw_area);
     38     }
     39 }
     40 
     41 static void change_event_cb(lv_event_t * e)
     42 {
     43     lv_obj_t * obj = lv_event_get_target(e);
     44     uint16_t col;
     45     uint16_t row;
     46     lv_table_get_selected_cell(obj, &row, &col);
     47     bool chk = lv_table_has_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
     48     if(chk) lv_table_clear_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
     49     else lv_table_add_cell_ctrl(obj, row, 0, LV_TABLE_CELL_CTRL_CUSTOM_1);
     50 }
     51 
     52 
     53 /**
     54  * A very light-weighted list created from table
     55  */
     56 void lv_example_table_2(void)
     57 {
     58     /*Measure memory usage*/
     59     lv_mem_monitor_t mon1;
     60     lv_mem_monitor(&mon1);
     61 
     62     uint32_t t = lv_tick_get();
     63 
     64     lv_obj_t * table = lv_table_create(lv_scr_act());
     65 
     66     /*Set a smaller height to the table. It'll make it scrollable*/
     67     lv_obj_set_size(table, LV_SIZE_CONTENT, 200);
     68 
     69     lv_table_set_col_width(table, 0, 150);
     70     lv_table_set_row_cnt(table, ITEM_CNT); /*Not required but avoids a lot of memory reallocation lv_table_set_set_value*/
     71     lv_table_set_col_cnt(table, 1);
     72 
     73     /*Don't make the cell pressed, we will draw something different in the event*/
     74     lv_obj_remove_style(table, NULL, LV_PART_ITEMS | LV_STATE_PRESSED);
     75 
     76     uint32_t i;
     77     for(i = 0; i < ITEM_CNT; i++) {
     78         lv_table_set_cell_value_fmt(table, i, 0, "Item %"LV_PRIu32, i + 1);
     79     }
     80 
     81     lv_obj_align(table, LV_ALIGN_CENTER, 0, -20);
     82 
     83     /*Add an event callback to to apply some custom drawing*/
     84     lv_obj_add_event_cb(table, draw_event_cb, LV_EVENT_DRAW_PART_END, NULL);
     85     lv_obj_add_event_cb(table, change_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
     86 
     87     lv_mem_monitor_t mon2;
     88     lv_mem_monitor(&mon2);
     89 
     90     uint32_t mem_used = mon1.free_size - mon2.free_size;
     91 
     92     uint32_t elaps = lv_tick_elaps(t);
     93 
     94     lv_obj_t * label = lv_label_create(lv_scr_act());
     95     lv_label_set_text_fmt(label, "%"LV_PRIu32" items were created in %"LV_PRIu32" ms\n"
     96                           "using %"LV_PRIu32" bytes of memory",
     97                           ITEM_CNT, elaps, mem_used);
     98 
     99     lv_obj_align(label, LV_ALIGN_BOTTOM_MID, 0, -10);
    100 
    101 }
    102 
    103 #endif