Custom cell-draw in lv_table V9

How-to
2

Hello Mike,

I also could not find out how to properly do it from the documentation, here’s how I do it now in v9. Seems to work well. Code below is for changing the color and alignment of a label based on the column it is in.

static void ev_TabDraw_cb(lv_event_t* event)
{
    lv_draw_task_t * draw_task = lv_event_get_draw_task(event);
    lv_draw_dsc_base_t * base_dsc = draw_task->draw_dsc;

    if(base_dsc->part == LV_PART_ITEMS)
    {
        uint32_t row = base_dsc->id1;
        uint32_t col = base_dsc->id2;

        if (draw_task->type == LV_DRAW_TASK_TYPE_LABEL)
        {
            lv_draw_label_dsc_t* label_dsc = draw_task->draw_dsc;

            switch (col) {
                case TABLE_COLUMN_FIELD:
                    label_dsc->align = LV_TEXT_ALIGN_LEFT;
                    break;

                case TABLE_COLUMN_VALUE:
                    label_dsc->align = LV_TEXT_ALIGN_RIGHT;
                    break;

                case TABLE_COLUMN_UNIT:
                    label_dsc->align = LV_TEXT_ALIGN_LEFT;
                    label_dsc->color = lv_color_hex(TABLE_COL_UNIT);
                    break;
               default:
                    break;
            }
      }
}
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