Examples of lejos.util.TextMenu

lejos.util.TextMenu
Displays a list of items. The select() method allows the user to scroll the list using the right and left keys to scroll forward and backward through the list. The location of the list , and an optional title can be specified. @author Roger Glassey Feb 20, 2007

    private void fileMenu(File file)
    {
        String fileName = file.getName();
        String ext = getExtension(fileName);
        newScreen();
        TextMenu menu = new TextMenu(null, 2);
        menu.setTitle(fileName);
        if (ext.equals("nxj") || ext.equals("bin"))
        {
            menu.setItems(new String[]{"Execute program", "Set as Default", "Delete file"});
            switch(getSelection(menu, 0))
            {
                case 0:
                    try {
                        file.exec();
                    }
                    catch (FlashError fe)
                    {
                        msg("Invalid program");
                    }
                    break;
                case 1:
                    Settings.setProperty(defaultProgramProperty, getBaseName(fileName));
                    break;
                case 2:
                    deleteFile(file);
                    break;
            }
        }
        else if (ext.equals("wav"))
        {
            menu.setItems(new String[]{"Play sample", "Delete file"});
            switch (getSelection(menu, 0))
            {
                case 0:
                    Sound.playSample(file);
                    break;
                case 1:
                    deleteFile(file);
                    break;
            }
        }
        else
        {
            menu.setItems(new String[]{"Delete file"});
            switch (getSelection(menu, 0))
            {
                case 0:
                    deleteFile(file);
                    break;

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            for (int i = 0; i < files.length && files[i] != null; i++)
                len++;
            String fileNames[] = new String[len];
            for (int i = 0; i < len; i++)
                fileNames[i] = files[i].getName();
            TextMenu menu = new TextMenu(fileNames, 1);
            selection = getSelection(menu, 0);
            if (selection >= 0)
                fileMenu(files[selection]);
        } while (selection >= 0);
    }

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     */
    private void soundMenu()
    {
        String[] soundMenuData = new String[]{"Volume:    ", "Key click: "};
        String[] soundMenuData2 = new String[soundMenuData.length];
        TextMenu menu = new TextMenu(soundMenuData2, 2);
        int[][] Volumes =
        {
            {
                Sound.getVolume() / 10, 784, 250, 0
            },
            {
                Button.getKeyClickVolume() / 10, Button.getKeyClickTone(1), Button.getKeyClickLength(), 0
            }
        };
        int selection = 0;
        // Make a note of starting volumes so we know if it changes
        for (int i = 0; i < Volumes.length; i++)
            Volumes[i][3] = Volumes[i][0];
        // remember and Turn of tone for the enter key
        int tone = Button.getKeyClickTone(Button.ID_ENTER);
        Button.setKeyClickTone(Button.ID_ENTER, 0);
        do {
            newScreen("Sound");
            for (int i = 0; i < Volumes.length; i++)
                soundMenuData2[i] = soundMenuData[i] + formatVol(Volumes[i][0]);
            menu.setItems(soundMenuData2);
            selection = getSelection(menu, selection);
            if (selection >= 0)
            {
                Volumes[selection][0]++;
                Volumes[selection][0] %= 11;

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     * @param prompt A description of the action about to be performed
     * @return 1=yes 0=no < 0 escape
     */
    private int getYesNo(String prompt)
    {
        TextMenu menu = new TextMenu(new String[]{"No", "Yes"}, 6, prompt);
        return getSelection(menu, 0);
    }

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     * the default program usage.
     */
    private void systemMenu()
    {
        String[] menuData = {"Format", "", "Auto Run"};
        TextMenu menu = new TextMenu(null, 5);
        int selection = 0;
        do {
            newScreen("System");
            LCD.drawString("Flash", 0, 2);
            LCD.drawInt(File.freeMemory(), 6, 10, 2);
            LCD.drawString("RAM", 0, 3);
            LCD.drawInt((int) (Runtime.getRuntime().freeMemory()), 11, 3);
            LCD.drawString("Battery", 0, 4);
            int millis = Battery.getVoltageMilliVolt() + 50;
            LCD.drawInt((millis - millis % 1000) / 1000, 11, 4);
            LCD.drawString(".", 12, 4);
            LCD.drawInt((millis % 1000) / 100, 13, 4);
            if (Battery.isRechargeable())
                LCD.drawString("R", 15, 4);
            menuData[1] = "Sleep time: " + timeout;
            menu.setItems(menuData);
            selection = getSelection(menu, selection);
            switch (selection)
            {
                case 0:
                    if (getYesNo("Delete all files?") == 1)

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     * Display the main system menu.
     * Allow the user to select File, Bluetooth, Sound, System operations.
     */
    private void mainMenu()
    {
        TextMenu menu = new TextMenu(new String[]
                {
                    "Run Default", "Files", "Bluetooth", "Sound", "System", "Version"
                }, 1);
        int selection;
        do

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      {"P1", "P2", "P3", "P4", "P5",
       "Stop", "Beep",
       "A fwd", "A bwd", "B fwd", 
       "B bwd", "C fwd", "C bwd",
       "Msg 1", "Msg 2", "Msg 3"};  
    TextMenu menu = new TextMenu(menuItems,1,"RCX Remote");    
    int menu_item;
    
    do {
      menu_item = menu.select();
      
      if (menu_item >= 0 && menu_item <= 4) {
        link.runProgram(menu_item + 1);
      }

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    String pressed = "pressed ";
    String released = "released";
    
      String[] viewItems = {"System", "Sensors", "Motors", "Exit"};
      
    TextMenu main = new TextMenu(viewItems, 1, "View Example");
    
    String[] sensorItems = {"Touch","Light(Floodlit)","Light(Ambient)","Sound DB","Sound DBA","RCX Light","Ultrasonic"};
    
    TextMenu pickSensor = new TextMenu(sensorItems, 1, "Pick Sensor");
    
    String[] sensorPorts = {"S1","S2","S3","S4"};
    TextMenu pickSensorPort = new TextMenu(sensorPorts, 1, "Pick Port");


    String[] motors = {"A","B","C","A&B","A&C","B&C"};
    TextMenu pickMotor = new TextMenu(motors,1,"Pick Motor");
    
    String[] motorMethods = {"forward","backward","flt","stop"};
    TextMenu operation = new TextMenu(motorMethods, 1, "Pick option");
    
    int selection;
    
    for(;;)
    {
      LCD.clear();
      selection = main.select();
      
      if (selection == -1 || selection == 3)
      {
        LCD.clear();
        LCD.drawString("Finished",3,4);
        LCD.refresh();  
        return;
      }
      
      if (selection == 0) // System Info
      {
        LCD.clear();
        LCD.drawString(sys, 0, 0);
        LCD.drawString(batt, 0, 2);
        LCD.drawInt(Battery.getVoltageMilliVolt(), 4, 10, 2);
        LCD.drawString(tot, 0, 3);
          LCD.drawInt((int)(Runtime.getRuntime().totalMemory()), 5, 10, 3);
        LCD.drawString(free, 0, 4);
          LCD.drawInt((int)(Runtime.getRuntime().freeMemory()), 5, 10,4);
          LCD.refresh();
          
          Button.ESCAPE.waitForPressAndRelease();
      }
      
      if (selection == 1) // Sensors        
      {
        LCD.clear();
        int portId = pickSensorPort.select();
        if (portId < 0) 
        {
          Button.ESCAPE.waitForPressAndRelease();
          continue;
        }


        LCD.clear();
        int sensor = pickSensor.select();        
        if (sensor < 0)
        {
          Button.ESCAPE.waitForPressAndRelease();
          continue;
        } 
        
        LCD.clear();
        LCD.drawString(sensVal, 0, 0);        
        LCD.drawString(port, 0, 2);
        LCD.drawString(sensorPorts[portId],6,2);
        LCD.drawString(type, 0, 3);
        LCD.drawString(sensorItems[sensor],6,3);
        LCD.drawString(val,0,4);
        
        if (sensor == 0)
        {
          TouchSensor touch = new TouchSensor(SensorPort.PORTS[portId]);
          
          while (!Button.ESCAPE.isPressed())
          {
            if (touch.isPressed()) LCD.drawString(pressed,7,4);
            else LCD.drawString(released, 7, 4);
            
            LCD.refresh();
            Thread.sleep(100);
          }
        }
        
        if (sensor == 1 || sensor == 2)
        {
          LightSensor light = new LightSensor(SensorPort.PORTS[portId], sensor == 1);
          
          while (!Button.ESCAPE.isPressed())
          {
            LCD.drawInt(light.readValue(), 3, 7, 4);
            
            LCD.refresh();
            Thread.sleep(100);
          }
        }


        if (sensor == 3 || sensor == 4)
        {
          SoundSensor sound = new SoundSensor(SensorPort.PORTS[portId], sensor == 4);
          
          while (!Button.ESCAPE.isPressed())
          {
            LCD.drawInt(sound.readValue(), 3, 7, 4);
            
            LCD.refresh();
            Thread.sleep(100);
          }
        }  
        
        if (sensor == 5) // RCX Light Sensor
        {
          RCXLightSensor light = new RCXLightSensor(SensorPort.PORTS[portId]);
          
          while (!Button.ESCAPE.isPressed())
          {
            LCD.drawInt(light.readValue(), 3, 7, 4);
            
            LCD.refresh();
            Thread.sleep(100);
          }
        }
        
        if (sensor == 6) // Ultrasonic
        {
          UltrasonicSensor sonar = new UltrasonicSensor(SensorPort.PORTS[portId]);
          
          while (!Button.ESCAPE.isPressed())
          {
            LCD.drawInt(sonar.getDistance(), 3, 7, 4);
            
            LCD.refresh();
            Thread.sleep(100);
          }
        }
        Button.ESCAPE.waitForPressAndRelease();
      }
      
      if (selection == 2) // Motors
      {
        LCD.clear();
        int motor = pickMotor.select();        
        if (motor < 0)
        {
          Button.ESCAPE.waitForPressAndRelease();
          continue;
        }
        
        for(;;)
        {        
          LCD.clear();
          int op = operation.select();          
          if (op < 0)
          {
            Button.ESCAPE.waitForPressAndRelease();
            break;
          }

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