static void lcd_menu_insert_material_preheat()
{
    setTargetHotend(material[active_extruder].temperature, active_extruder);
    int16_t temp = degHotend(active_extruder) - 20;
    int16_t target = degTargetHotend(active_extruder) - 20 - 10;
    if (temp < 0) temp = 0;
    if (temp > target && !is_command_queued())
    {
        set_extrude_min_temp(0);
        for(uint8_t e=0; e<EXTRUDERS; e++)
            volume_to_filament_length[e] = 1.0;//Set the extrusion to 1mm per given value, so we can move the filament a set distance.

        currentMenu = lcd_menu_change_material_insert_wait_user;
        temp = target;
    }

    uint8_t progress = uint8_t(temp * 125 / target);
    if (progress < minProgress)
        progress = minProgress;
    else
        minProgress = progress;
    
    lcd_info_screen(lcd_menu_material_main, cancelMaterialInsert);
    lcd_lib_draw_stringP(3, 10, PSTR("Heating printhead for"));
    lcd_lib_draw_stringP(3, 20, PSTR("material insertion"));

    lcd_progressbar(progress);
    
    lcd_lib_update_screen();
}
static void lcd_menu_change_material_preheat()
{
    run_history = true;
    setTargetHotend(material[active_extruder].temperature, active_extruder);
    int16_t temp = degHotend(active_extruder) - 20;
    int16_t target = degTargetHotend(active_extruder) - 20 - 10;
    if (temp < 0) temp = 0;
    if (temp > target && !is_command_queued())
        {
            set_extrude_min_temp(0);
            for(uint8_t e=0; e<EXTRUDERS; e++)
                volume_to_filament_length[e] = 1.0;//Set the extrusion to 1mm per given value, so we can move the filament a set distance.

            plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], 20.0, retract_feedrate/60.0, active_extruder);

            float old_max_feedrate_e = max_feedrate[E_AXIS];
            float old_retract_acceleration = retract_acceleration;
            max_feedrate[E_AXIS] = FILAMENT_REVERSAL_SPEED;
            retract_acceleration = FILAMENT_LONG_MOVE_ACCELERATION;

            current_position[E_AXIS] = 0;
            plan_set_e_position(current_position[E_AXIS]);
            plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], -1.0, FILAMENT_REVERSAL_SPEED, active_extruder);
            for(uint8_t n=0; n<6; n++)
                plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], (n+1)*-FILAMENT_REVERSAL_LENGTH/6, FILAMENT_REVERSAL_SPEED, active_extruder);

            max_feedrate[E_AXIS] = old_max_feedrate_e;
            retract_acceleration = old_retract_acceleration;

            currentMenu = lcd_menu_change_material_remove;
            temp = target;
        }

    uint8_t progress = uint8_t(temp * 125 / target);
    if (progress < minProgress)
        progress = minProgress;
    else
        minProgress = progress;

    lcd_info_screen(lcd_menu_material_main, cancelMaterialInsert);
    lcd_lib_draw_stringP(3, 0, PSTR("Heating printhead"));
    lcd_lib_draw_stringP(3, 10, PSTR("for material removal"));

    char buffer[20];
    memset (buffer,0,sizeof(buffer));


    char* c;

    c = int_to_string(temp, buffer/*, PSTR( DEGREE_C_SYMBOL )*/);
    *c++ = TEMPERATURE_SEPARATOR;
    c = int_to_string(target, c, PSTR( DEGREE_C_SYMBOL ));
    lcd_lib_draw_string_center(20, buffer);

    lcd_progressbar(progress);
    LED_HEAT();
    lcd_lib_update_screen();
}
static void lcd_menu_print_heatup()
{
    lcd_question_screen(lcd_menu_print_tune, NULL, PSTR("TUNE"), lcd_menu_print_abort, NULL, PSTR("ABORT"));
    
    if (current_temperature_bed > target_temperature_bed - 10)
    {
        for(uint8_t e=0; e<EXTRUDERS; e++)
        {
            if (LCD_DETAIL_CACHE_MATERIAL(e) < 1 || target_temperature[e] > 0)
                continue;
            target_temperature[e] = material[e].temperature;
        }

        if (current_temperature_bed >= target_temperature_bed - TEMP_WINDOW * 2 && !is_command_queued())
        {
            bool ready = true;
            for(uint8_t e=0; e<EXTRUDERS; e++)
                if (current_temperature[e] < target_temperature[e] - TEMP_WINDOW)
                    ready = false;
            
            if (ready)
            {
                doStartPrint();
                currentMenu = lcd_menu_print_printing;
            }
        }
    }

    uint8_t progress = 125;
    for(uint8_t e=0; e<EXTRUDERS; e++)
    {
        if (LCD_DETAIL_CACHE_MATERIAL(e) < 1 || target_temperature[e] < 1)
            continue;
        if (current_temperature[e] > 20)
            progress = min(progress, (current_temperature[e] - 20) * 125 / (target_temperature[e] - 20 - TEMP_WINDOW));
        else
            progress = 0;
    }
    if (current_temperature_bed > 20)
        progress = min(progress, (current_temperature_bed - 20) * 125 / (target_temperature_bed - 20 - TEMP_WINDOW));
    else
        progress = 0;
    
    if (progress < minProgress)
        progress = minProgress;
    else
        minProgress = progress;
    
    lcd_lib_draw_string_centerP(10, PSTR("Heating up..."));
    lcd_lib_draw_string_centerP(20, PSTR("Preparing to print:"));
    lcd_lib_draw_string_center(30, card.longFilename);

    lcd_progressbar(progress);
    
    lcd_lib_update_screen();
}
static void checkPrintFinished()
{
    if (!card.sdprinting && !is_command_queued())
    {
        abortPrint();
        currentMenu = lcd_menu_print_ready;
        SELECT_MAIN_MENU_ITEM(0);
    }
    if (card.errorCode())
    {
        abortPrint();
        currentMenu = lcd_menu_print_error;
        SELECT_MAIN_MENU_ITEM(0);
    }
}
static void lcd_menu_material_main()
{
    lcd_tripple_menu(PSTR("CHANGE"), PSTR("SETTINGS"), PSTR("RETURN"));

    if (lcd_lib_button_pressed)
    {
        if (IS_SELECTED_MAIN(0) && !is_command_queued())
        {
            minProgress = 0;
            char buffer[32];
            enquecommand_P(PSTR("G28 X0 Y0"));
            sprintf_P(buffer, PSTR("G1 F%i X%i Y%i"), int(homing_feedrate[0]), X_MAX_LENGTH/2, 10);
            enquecommand(buffer);
            lcd_change_to_menu_change_material(lcd_menu_material_main_return);
        }
        else if (IS_SELECTED_MAIN(1))
            lcd_change_to_menu(lcd_menu_material_select, SCROLL_MENU_ITEM_POS(0));
        else if (IS_SELECTED_MAIN(2))
            lcd_change_to_menu(lcd_menu_main);
    }

    lcd_lib_update_screen();
}
void lcd_menu_print_select()
{
    if (!card.sdInserted)
    {
        LED_GLOW();
        lcd_lib_encoder_pos = MAIN_MENU_ITEM_POS(0);
        lcd_info_screen(lcd_menu_main);
        lcd_lib_draw_string_centerP(15, PSTR("No SD-CARD!"));
        lcd_lib_draw_string_centerP(25, PSTR("Please insert card"));
        lcd_lib_update_screen();
        card.release();
        return;
    }
    if (!card.isOk())
    {
        lcd_info_screen(lcd_menu_main);
        lcd_lib_draw_string_centerP(16, PSTR("Reading card..."));
        lcd_lib_update_screen();
        lcd_clear_cache();
        card.initsd();
        return;
    }
    
    if (LCD_CACHE_NR_OF_FILES() == 0xFF)
        LCD_CACHE_NR_OF_FILES() = card.getnrfilenames();
    if (card.errorCode())
    {
        LCD_CACHE_NR_OF_FILES() = 0xFF;
        return;
    }
    uint8_t nrOfFiles = LCD_CACHE_NR_OF_FILES();
    if (nrOfFiles == 0)
    {
        if (card.atRoot())
            lcd_info_screen(lcd_menu_main, NULL, PSTR("OK"));
        else
            lcd_info_screen(lcd_menu_print_select, cardUpdir, PSTR("OK"));
        lcd_lib_draw_string_centerP(25, PSTR("No files found!"));
        lcd_lib_update_screen();
        lcd_clear_cache();
        return;
    }
    
    if (lcd_lib_button_pressed)
    {
        uint8_t selIndex = uint16_t(SELECTED_SCROLL_MENU_ITEM());
        if (selIndex == 0)
        {
            if (card.atRoot())
            {
                lcd_change_to_menu(lcd_menu_main);
            }else{
                lcd_clear_cache();
                lcd_lib_beep();
                card.updir();
            }
        }else{
            card.getfilename(selIndex - 1);
            if (!card.filenameIsDir)
            {
                //Start print
                active_extruder = 0;
                card.openFile(card.filename, true);
                if (card.isFileOpen() && !is_command_queued())
                {
                    if (led_mode == LED_MODE_WHILE_PRINTING || led_mode == LED_MODE_BLINK_ON_DONE)
                        analogWrite(LED_PIN, 255 * int(led_brightness_level) / 100);
                    if (!card.longFilename[0])
                        strcpy(card.longFilename, card.filename);
                    card.longFilename[20] = '\0';
                    if (strchr(card.longFilename, '.')) strchr(card.longFilename, '.')[0] = '\0';
                    
                    char buffer[64];
                    card.fgets(buffer, sizeof(buffer));
                    buffer[sizeof(buffer)-1] = '\0';
                    while (strlen(buffer) > 0 && buffer[strlen(buffer)-1] < ' ') buffer[strlen(buffer)-1] = '\0';
                    if (strcmp_P(buffer, PSTR(";FLAVOR:UltiGCode")) != 0)
                    {
                        card.fgets(buffer, sizeof(buffer));
                        buffer[sizeof(buffer)-1] = '\0';
                        while (strlen(buffer) > 0 && buffer[strlen(buffer)-1] < ' ') buffer[strlen(buffer)-1] = '\0';
                    }
                    card.setIndex(0);
                    if (strcmp_P(buffer, PSTR(";FLAVOR:UltiGCode")) == 0)
                    {
                        //New style GCode flavor without start/end code.
                        // Temperature settings, filament settings, fan settings, start and end-code are machine controlled.
                        target_temperature_bed = 0;
                        fanSpeedPercent = 0;
                        for(uint8_t e=0; e<EXTRUDERS; e++)
                        {
                            if (LCD_DETAIL_CACHE_MATERIAL(e) < 1)
                                continue;
                            target_temperature[e] = 0;//material[e].temperature;
                            target_temperature_bed = max(target_temperature_bed, material[e].bed_temperature);
                            fanSpeedPercent = max(fanSpeedPercent, material[0].fan_speed);
                            volume_to_filament_length[e] = 1.0 / (M_PI * (material[e].diameter / 2.0) * (material[e].diameter / 2.0));
                            extrudemultiply[e] = material[e].flow;
                        }
                        
                        fanSpeed = 0;
                        enquecommand_P(PSTR("G28"));
                        enquecommand_P(PSTR("G1 F12000 X5 Y10"));
                        lcd_change_to_menu(lcd_menu_print_heatup);
                    }else{
                        //Classic gcode file
                        
                        //Set the settings to defaults so the classic GCode has full control
                        fanSpeedPercent = 100;
                        for(uint8_t e=0; e<EXTRUDERS; e++)
                        {
                            volume_to_filament_length[e] = 1.0;
                            extrudemultiply[e] = 100;
                        }
                        
                        lcd_change_to_menu(lcd_menu_print_classic_warning, MAIN_MENU_ITEM_POS(0));
                    }
                }
            }else{
                lcd_lib_beep();
                lcd_clear_cache();
                card.chdir(card.filename);
                SELECT_SCROLL_MENU_ITEM(0);
            }
            return;//Return so we do not continue after changing the directory or selecting a file. The nrOfFiles is invalid at this point.
        }
    }
    lcd_scroll_menu(PSTR("SD CARD"), nrOfFiles+1, lcd_sd_menu_filename_callback, lcd_sd_menu_details_callback);
}