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/>.
   *
   */
  
  //
  // Mixer Menu
  //
  
  #include "../../inc/MarlinConfigPre.h"
  
  #if BOTH(HAS_LCD_MENU, MIXING_EXTRUDER)
  
  #include "menu_item.h"
  #include "menu_addon.h"
  
  #include "../../feature/mixing.h"
  
  #if HAS_GRAPHICAL_TFT
    #include "../tft/tft.h"
  #endif
  
  #define CHANNEL_MIX_EDITING !HAS_DUAL_MIXING
  
  #if ENABLED(GRADIENT_MIX)
  
    void _lcd_mixer_gradient_z_edit(const bool isend) {
      ui.defer_status_screen();
      ENCODER_RATE_MULTIPLY(true);
  
      float &zvar = isend ? mixer.gradient.end_z : mixer.gradient.start_z;
  
      if (ui.encoderPosition) {
        zvar += float(int32_t(ui.encoderPosition)) * 0.1;
        ui.encoderPosition = 0;
        NOLESS(zvar, 0);
        NOMORE(zvar, Z_MAX_POS);
      }
  
      if (ui.should_draw()) {
        char tmp[16];
        SETCURSOR(1, (LCD_HEIGHT - 1) / 2);
        lcd_put_u8str(isend ? GET_TEXT_F(MSG_END_Z) : GET_TEXT_F(MSG_START_Z));
        sprintf_P(tmp, PSTR("%4d.%d mm"), int(zvar), int(zvar * 10) % 10);
        SETCURSOR_RJ(9, (LCD_HEIGHT - 1) / 2);
        lcd_put_u8str(tmp);
      }
  
      if (ui.lcd_clicked) {
        if (isend && zvar < mixer.gradient.start_z)
          mixer.gradient.start_z = zvar;
        else if (!isend && zvar > mixer.gradient.end_z)
          mixer.gradient.end_z = zvar;
        mixer.refresh_gradient();
        ui.goto_previous_screen();
      }
      else {
        TERN_(HAS_GRAPHICAL_TFT, tft.draw_edit_screen_buttons());
      }
    }
  
    void lcd_mixer_edit_gradient_menu() {
      START_MENU();
      BACK_ITEM(MSG_MIXER);
  
      EDIT_ITEM(int8, MSG_START_VTOOL, &mixer.gradient.start_vtool, 0, MIXING_VIRTUAL_TOOLS - 1, mixer.refresh_gradient);
      EDIT_ITEM(int8, MSG_END_VTOOL, &mixer.gradient.end_vtool, 0, MIXING_VIRTUAL_TOOLS - 1, mixer.refresh_gradient);
  
      #if ENABLED(GRADIENT_VTOOL)
        EDIT_ITEM(int8, MSG_GRADIENT_ALIAS, &mixer.gradient.vtool_index, -1, MIXING_VIRTUAL_TOOLS - 1, mixer.refresh_gradient);
      #endif
  
      char tmp[18];
  
      PGM_P const slabel = GET_TEXT(MSG_START_Z);
      SUBMENU_P(slabel, []{ _lcd_mixer_gradient_z_edit(false); });
      MENU_ITEM_ADDON_START_RJ(11);
        sprintf_P(tmp, PSTR("%4d.%d mm"), int(mixer.gradient.start_z), int(mixer.gradient.start_z * 10) % 10);
        lcd_put_u8str(tmp);
      MENU_ITEM_ADDON_END();
  
      PGM_P const elabel = GET_TEXT(MSG_END_Z);
      SUBMENU_P(elabel, []{ _lcd_mixer_gradient_z_edit(true); });
      MENU_ITEM_ADDON_START_RJ(11);
        sprintf_P(tmp, PSTR("%4d.%d mm"), int(mixer.gradient.end_z), int(mixer.gradient.end_z * 10) % 10);
        lcd_put_u8str(tmp);
      MENU_ITEM_ADDON_END();
  
      END_MENU();
    }
  
  #endif // GRADIENT_MIX
  
  static uint8_t v_index;
  
  #if HAS_DUAL_MIXING
    void _lcd_draw_mix(const uint8_t y) {
      char tmp[20]; // "100%_100%"
      sprintf_P(tmp, PSTR("%3d%% %3d%%"), int(mixer.mix[0]), int(mixer.mix[1]));
      SETCURSOR(2, y); lcd_put_u8str(GET_TEXT_F(MSG_MIX));
      SETCURSOR_RJ(10, y); lcd_put_u8str(tmp);
    }
  #endif
  
  void _lcd_mixer_select_vtool() {
    mixer.T(v_index);
    TERN_(HAS_DUAL_MIXING, _lcd_draw_mix(LCD_HEIGHT - 1));
  }
  
  #if CHANNEL_MIX_EDITING
  
    void _lcd_mixer_cycle_mix() {
      uint16_t bits = 0;
      MIXER_STEPPER_LOOP(i) if (mixer.collector[i]) SBI(bits, i);
      bits = (bits + 1) & (_BV(MIXING_STEPPERS) - 1);
      if (!bits) ++bits;
      MIXER_STEPPER_LOOP(i) mixer.collector[i] = TEST(bits, i) ? 10.0f : 0.0f;
      ui.refresh();
    }
  
    void _lcd_mixer_commit_vtool() {
      mixer.normalize();
      ui.goto_previous_screen();
    }
  
  #endif
  
  void lcd_mixer_mix_edit() {
  
    #if HAS_DUAL_MIXING && !CHANNEL_MIX_EDITING
  
      // Adjust 2-channel mix from the encoder
      if (ui.encoderPosition) {
        mixer.mix[0] += int32_t(ui.encoderPosition);
        ui.encoderPosition = 0;
        if (mixer.mix[0] < 0) mixer.mix[0] += 101;
        if (mixer.mix[0] > 100) mixer.mix[0] -= 101;
        mixer.mix[1] = 100 - mixer.mix[0];
      }
      _lcd_draw_mix((LCD_HEIGHT - 1) / 2);
  
      // Click to commit the change
      if (ui.lcd_clicked) {
        mixer.update_vtool_from_mix();
        ui.goto_previous_screen();
      }
  
      TERN_(HAS_GRAPHICAL_TFT, tft.draw_edit_screen_buttons());
  
    #else
  
      START_MENU();
      BACK_ITEM(MSG_MIXER);
  
      #if CHANNEL_MIX_EDITING
  
        LOOP_S_LE_N(n, 1, MIXING_STEPPERS)
          EDIT_ITEM_FAST_N(float42_52, n, MSG_MIX_COMPONENT_N, &mixer.collector[n-1], 0, 10);
  
        ACTION_ITEM(MSG_CYCLE_MIX, _lcd_mixer_cycle_mix);
        ACTION_ITEM(MSG_COMMIT_VTOOL, _lcd_mixer_commit_vtool);
  
      #endif
  
      END_MENU();
  
    #endif
  }
  
  #if HAS_DUAL_MIXING
  
    //
    // Toggle Dual-Mix
    //
    inline void _lcd_mixer_toggle_mix() {
      mixer.mix[0] = mixer.mix[0] == 100 ? 0 : 100;
      mixer.mix[1] = 100 - mixer.mix[0];
      mixer.update_vtool_from_mix();
      ui.refresh(LCDVIEW_CALL_REDRAW_NEXT);
    }
  
  #endif
  
  #if CHANNEL_MIX_EDITING
  
    //
    // Prepare and Edit Mix
    //
    inline void _lcd_goto_mix_edit() {
      mixer.refresh_collector(10, v_index);
      ui.goto_screen(lcd_mixer_mix_edit);
      lcd_mixer_mix_edit();
    }
  
  #endif
  
  #if ENABLED(GRADIENT_MIX)
    //
    // Reverse Gradient
    //
    inline void _lcd_mixer_reverse_gradient() {
      const uint8_t sv = mixer.gradient.start_vtool;
      mixer.gradient.start_vtool = mixer.gradient.end_vtool;
      mixer.gradient.end_vtool = sv;
      mixer.refresh_gradient();
      ui.refresh(LCDVIEW_CALL_REDRAW_NEXT);
    }
  #endif
  
  void menu_mixer() {
    START_MENU();
    BACK_ITEM(MSG_MAIN);
  
    v_index = mixer.get_current_vtool();
    EDIT_ITEM(uint8, MSG_ACTIVE_VTOOL, &v_index, 0, MIXING_VIRTUAL_TOOLS - 1, _lcd_mixer_select_vtool, ENABLED(HAS_DUAL_MIXING));
  
    #if HAS_DUAL_MIXING
    {
      char tmp[11];
      SUBMENU(MSG_MIX, lcd_mixer_mix_edit);
      MENU_ITEM_ADDON_START_RJ(9);
        mixer.update_mix_from_vtool();
        sprintf_P(tmp, PSTR("%3d;%3d%%"), int(mixer.mix[0]), int(mixer.mix[1]));
        lcd_put_u8str(tmp);
      MENU_ITEM_ADDON_END();
      ACTION_ITEM(MSG_TOGGLE_MIX, _lcd_mixer_toggle_mix);
    }
    #else
      SUBMENU(MSG_MIX, _lcd_goto_mix_edit);
    #endif
  
    //
    // Reset All V-Tools
    //
    CONFIRM_ITEM(MSG_RESET_VTOOLS,
      MSG_BUTTON_RESET, MSG_BUTTON_CANCEL,
      []{
        mixer.reset_vtools();
        LCD_MESSAGE(MSG_VTOOLS_RESET);
        ui.return_to_status();
      },
      nullptr,
      GET_TEXT(MSG_RESET_VTOOLS), (const char *)nullptr, PSTR("?")
    );
  
    #if ENABLED(GRADIENT_MIX)
    {
      char tmp[13];
      SUBMENU(MSG_GRADIENT, lcd_mixer_edit_gradient_menu);
      MENU_ITEM_ADDON_START_RJ(9);
        sprintf_P(tmp, PSTR("T%i->T%i"), mixer.gradient.start_vtool, mixer.gradient.end_vtool);
        lcd_put_u8str(tmp);
      MENU_ITEM_ADDON_END();
      ACTION_ITEM(MSG_REVERSE_GRADIENT, _lcd_mixer_reverse_gradient);
    }
    #endif
  
    END_MENU();
  }
  
  #endif // HAS_LCD_MENU && MIXING_EXTRUDER
  