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import java.util.*;
import javax.microedition.lcdui.Graphics;
import lejos.nxt.*;
public class TextUI {
public static void main(String[] args) throws InterruptedException {
Graphics g = new Graphics();
g.drawLine(0, 9, 99, 9);
LCD.drawString("Text UI", 5, 0);
LCD.drawString(">START", 0, 2);
LCD.drawString(" EXIT", 0, 3);
int selection = 1;
Thread.sleep(500);
while(!Button.ENTER.isPressed()) {
if(Button.RIGHT.isPressed()) {
if(selection == 1) {
selection = 2;
LCD.clear();
g.drawLine(0, 9, 99, 9);
LCD.drawString("Text UI", 5, 0);
LCD.drawString(" START", 0, 2);
LCD.drawString(">EXIT", 0, 3);
}
else {
selection = 1;
LCD.clear();
g.drawLine(0, 9, 99, 9);
LCD.drawString("Text UI", 5, 0);
LCD.drawString(">START", 0, 2);
LCD.drawString(" EXIT", 0, 3);
}
}
if(Button.LEFT.isPressed()) {
if(selection == 1) {
selection = 2;
LCD.clear();
g.drawLine(0, 9, 99, 9);
LCD.drawString("Text UI", 5, 0);
LCD.drawString(" START", 0, 2);
LCD.drawString(">EXIT", 0, 3);
}
else {
selection = 1;
LCD.clear();
g.drawLine(0, 9, 99, 9);
LCD.drawString("Text UI", 5, 0);
LCD.drawString(">START", 0, 2);
LCD.drawString(" EXIT", 0, 3);
}
}
Thread.sleep(300);
}
if(selection == 2) {
System.exit(0);
}
else {
LCD.clear();
g.drawLine(0, 9, 99, 9);
LCD.drawString("Enter Text", 3, 0);
String[] arr = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"};
String[] out = new String[15];
int mlength = 15;
int outTrack = 0;
int arrTrack = 0;
g.drawLine(45, 32, 55, 32);
LCD.drawString("^", 8, 4);
int pos1 = 1;
int pos2 = 2;
int pos3 = 25;
int pos4 = 24;
LCD.drawString(arr[pos4], 2, 3);
LCD.drawString(arr[pos3], 5, 3);
LCD.drawString(arr[arrTrack], 8, 3);
LCD.drawString(arr[pos1], 11, 3);
LCD.drawString(arr[pos2], 14, 3);
LCD.drawString(mlength + " char. left", 0, 7);
Thread.sleep(300);
String ret = "";
while(!Button.ESCAPE.isPressed()) {
if(Button.RIGHT.isPressed()) {
ret = "";
arrTrack++;
if(arrTrack > 25)
arrTrack = 0;
pos1 = arrTrack + 1;
if(pos1 > 25)
pos1 = 0;
pos2 = arrTrack + 2;
if(pos2 > 25 && arrTrack == 24)
pos2 = 0;
if(pos2 > 25 && arrTrack == 25)
pos2 = 1;
pos3 = arrTrack - 1;
if(pos3 < 0)
pos3 = 25;
pos4 = arrTrack - 2;
if(pos4 < 0 && arrTrack == 1)
pos4 = 25;
if(pos4 < 0 && arrTrack == 0)
pos4 = 24;
LCD.clear();
LCD.drawString("Enter Text", 3, 0);
g.drawLine(0, 9, 99, 9);
g.drawLine(45, 32, 55, 32);
LCD.drawString("^", 8, 4);
LCD.drawString(arr[pos4], 2, 3);
LCD.drawString(arr[pos3], 5, 3);
LCD.drawString(arr[arrTrack], 8, 3);
LCD.drawString(arr[pos1], 11, 3);
LCD.drawString(arr[pos2], 14, 3);
LCD.drawString(mlength + " char. left", 0, 7);
for(int i = 0; i <= out.length-1; i++) {
if(out[i] == null)
break;
else
ret += out[i];
}
LCD.drawString(ret, 0, 5);
}
if(Button.LEFT.isPressed()) {
ret = "";
arrTrack--;
if(arrTrack < 0)
arrTrack = 25;
pos1 = arrTrack + 1;
if(pos1 > 25)
pos1 = 0;
pos2 = arrTrack + 2;
if(pos2 > 25 && arrTrack == 24)
pos2 = 0;
if(pos2 > 25 && arrTrack == 25)
pos2 = 1;
pos3 = arrTrack - 1;
if(pos3 < 0)
pos3 = 25;
pos4 = arrTrack - 2;
if(pos4 < 0 && arrTrack == 1)
pos4 = 25;
if(pos4 < 0 && arrTrack == 0)
pos4 = 24;
LCD.clear();
LCD.drawString("Enter Text", 3, 0);
g.drawLine(0, 9, 99, 9);
g.drawLine(45, 32, 55, 32);
LCD.drawString("^", 8, 4);
LCD.drawString(arr[pos4], 2, 3);
LCD.drawString(arr[pos3], 5, 3);
LCD.drawString(arr[arrTrack], 8, 3);
LCD.drawString(arr[pos1], 11, 3);
LCD.drawString(arr[pos2], 14, 3);
LCD.drawString(mlength + " char. left", 0, 7);
for(int i = 0; i <= out.length-1; i++) {
if(out[i] == null)
break;
else
ret += out[i];
}
LCD.drawString(ret, 0, 5);
}
if(Button.ENTER.isPressed()) {
ret = "";
if(mlength == 0)
break;
out[outTrack] = arr[arrTrack];
mlength--;
outTrack++;
LCD.clear();
LCD.drawString("Enter Text", 3, 0);
g.drawLine(0, 9, 99, 9);
g.drawLine(45, 32, 55, 32);
LCD.drawString("^", 8, 4);
LCD.drawString(arr[pos4], 2, 3);
LCD.drawString(arr[pos3], 5, 3);
LCD.drawString(arr[arrTrack], 8, 3);
LCD.drawString(arr[pos1], 11, 3);
LCD.drawString(arr[pos2], 14, 3);
LCD.drawString(mlength + " char. left", 0, 7);
for(int i = 0; i <= out.length-1; i++) {
if(out[i] == null)
break;
else
ret += out[i];
}
LCD.drawString(ret, 0, 5);
}
Thread.sleep(300);
}
Thread.sleep(300);
LCD.clear();
LCD.drawString("Input", 6, 0);
g.drawLine(0, 9, 99, 9);
ret = "";
for(int i = 0; i <= out.length-1; i++) {
if(out[i] == null)
break;
else
ret += out[i];
}
LCD.drawString(ret, 0, 3);
Thread.sleep(5000);
}
}
}
This code can be downloaded and ran on the NXT as is, you feel free to edit it, and reply if you have any modifications you think would help either shorten the code or add on to it.
By the way, this UI only supports A-Z (capitalized letters only). Feel free if you want to contribute lower case letters, numbers, special characters, ect.