text: /**
   * Marlin 3D Printer Firmware
   * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
   *
   * Based on Sprinter and grbl.
   * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
   *
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program.  If not, see <https://www.gnu.org/licenses/>.
   *
   */
  #include "../../../inc/MarlinConfigPre.h"
  
  #if HAS_TFT_LVGL_UI
  
  #include "draw_ui.h"
  #include <lv_conf.h>
  
  #include "../../../module/planner.h"
  #include "../../../inc/MarlinConfig.h"
  
  extern lv_group_t *g;
  static lv_obj_t *scr;
  
  enum {
    ID_STEP_RETURN = 1,
    ID_STEP_X,
    ID_STEP_Y,
    ID_STEP_Z,
    ID_STEP_E0,
    ID_STEP_E1,
    ID_STEP_DOWN,
    ID_STEP_UP
  };
  
  static void event_handler(lv_obj_t *obj, lv_event_t event) {
    if (event != LV_EVENT_RELEASED) return;
    lv_clear_step_settings();
    switch (obj->mks_obj_id) {
      case ID_STEP_RETURN:
        uiCfg.para_ui_page = false;
        draw_return_ui();
        return;
      case ID_STEP_X:
        value = Xstep;
        break;
      case ID_STEP_Y:
        value = Ystep;
        break;
      case ID_STEP_Z:
        value = Zstep;
        break;
      case ID_STEP_E0:
        value = E0step;
        break;
      case ID_STEP_E1:
        value = E1step;
        break;
      case ID_STEP_UP:
        uiCfg.para_ui_page = false;
        lv_draw_step_settings();
        return;
      case ID_STEP_DOWN:
        uiCfg.para_ui_page = true;
        lv_draw_step_settings();
        return;
    }
    lv_draw_number_key();
  }
  
  void lv_draw_step_settings() {
    scr = lv_screen_create(STEPS_UI, machine_menu.StepsConfTitle);
  
    if (!uiCfg.para_ui_page) {
      dtostrf(planner.settings.axis_steps_per_mm[X_AXIS], 1, 1, public_buf_l);
      lv_screen_menu_item_1_edit(scr, machine_menu.X_Steps, PARA_UI_POS_X, PARA_UI_POS_Y, event_handler, ID_STEP_X, 0, public_buf_l);
  
      dtostrf(planner.settings.axis_steps_per_mm[Y_AXIS], 1, 1, public_buf_l);
      lv_screen_menu_item_1_edit(scr, machine_menu.Y_Steps, PARA_UI_POS_X, PARA_UI_POS_Y * 2, event_handler, ID_STEP_Y, 1, public_buf_l);
  
      dtostrf(planner.settings.axis_steps_per_mm[Z_AXIS], 1, 1, public_buf_l);
      lv_screen_menu_item_1_edit(scr, machine_menu.Z_Steps, PARA_UI_POS_X, PARA_UI_POS_Y * 3, event_handler, ID_STEP_Z, 2, public_buf_l);
  
      dtostrf(planner.settings.axis_steps_per_mm[E_AXIS], 1, 1, public_buf_l);
      lv_screen_menu_item_1_edit(scr, machine_menu.E0_Steps, PARA_UI_POS_X, PARA_UI_POS_Y * 4, event_handler, ID_STEP_E0, 3, public_buf_l);
  
      lv_big_button_create(scr, "F:/bmp_back70x40.bin", machine_menu.next, PARA_UI_TURN_PAGE_POS_X, PARA_UI_TURN_PAGE_POS_Y, event_handler, ID_STEP_DOWN, true);
    }
    else {
      dtostrf(planner.settings.axis_steps_per_mm[E_AXIS_N(1)], 1, 1, public_buf_l);
      lv_screen_menu_item_1_edit(scr, machine_menu.E1_Steps, PARA_UI_POS_X, PARA_UI_POS_Y, event_handler, ID_STEP_E1, 0, public_buf_l);
  
      lv_big_button_create(scr, "F:/bmp_back70x40.bin", machine_menu.previous, PARA_UI_TURN_PAGE_POS_X, PARA_UI_TURN_PAGE_POS_Y, event_handler, ID_STEP_UP, true);
    }
  
    lv_big_button_create(scr, "F:/bmp_back70x40.bin", common_menu.text_back, PARA_UI_BACL_POS_X, PARA_UI_BACL_POS_Y, event_handler, ID_STEP_RETURN, true);
  }
  
  void lv_clear_step_settings() {
    #if HAS_ROTARY_ENCODER
      if (gCfgItems.encoder_enable) lv_group_remove_all_objs(g);
    #endif
    lv_obj_del(scr);
  }
  
  #endif // HAS_TFT_LVGL_UI
  