AppleWatchKeyboard.java

import java.util.Arrays;
import java.util.Collections;
import android.view.MotionEvent;
import java.lang.reflect.Method;

class Gestures {
  int maxOffset, minLength,st,et,tOff;
  String functionName;
  PVector startPos, endPos;
  PApplet pApp;
  Method[] m;
  Gestures(int minimum,int offSet,int timeOffset,PApplet theApplet) {
    m=new Method[4];
    pApp = theApplet;
    maxOffset=offSet;  //number pixels you are allowed to travel off the axis and still being counted as a swipe
    minLength=minimum;  // number of pixels you need to move your finger to count as a swipe
    tOff=timeOffset;
  }
  // where did our motion start
  void setStartPos(PVector pos) {
    startPos=pos;
  }
    // where did our motion start
  void setStartTime(int t) {
    st=t;
  }
  void setEndTime(int t) {
    et=t;
  }
  // where did it end and also call to check if it was a valid swipe
  void setEndPos(PVector pos) {
    endPos=pos;
    checkSwipe();
    endPos=new PVector();
    startPos=new PVector();
  }
  // check if it is a valid swipe that has been performed and if soperformthe attached function
  void checkSwipe() {
    print(et-st);
    if (et-st< tOff){
      
      if (abs(startPos.x-endPos.x)>minLength && abs(startPos.y-endPos.y) < maxOffset) {
        if (startPos.x < endPos.x) {
  
            performAction(2);  // a swipe right
            return;
          }
          else {
  
            performAction(0);  // a swipe left
            return;
          }
        }
      else {
        if (abs(startPos.y-endPos.y)>minLength && abs(startPos.x-endPos.x) < maxOffset) {
  
           if (startPos.y < endPos.y) {
    
            performAction(3); // a swipe downwards
            return;
           }
    
           else {
    
            performAction(1); // a swipe upwards
            return;
           }
         }
      }
    }
   epx=endPos.x;
    epy=endPos.y;
  print("mouseX: " + mouseX+"  mouseY: "+mouseY+"\n");
  if (didMouseClick(0, 200, 215, 400)) //check if click occured in letter area
  {
    currentLetter = 'a';
  }else if (didMouseClick(200+15, 200, 8, 400)){
    currentLetter ='b';
  }else if (didMouseClick(200+23, 200, 10, 400)){
    currentLetter ='c';
  }else if (didMouseClick(200+33, 200, 10, 400)){
    currentLetter ='d';
  }else if (didMouseClick(200+43, 200, 14, 400)){
    currentLetter ='e';
  }else if (didMouseClick(200+57, 200, 16, 400)){
    currentLetter ='f';
  }else if (didMouseClick(200+73, 200, 19, 400)){
    currentLetter ='g';
  }else if (didMouseClick(200+92, 200, 19, 400)){
    currentLetter ='h';
  }else if (didMouseClick(200+113, 200, 23, 400)){
    currentLetter ='i';
  }else if (didMouseClick(200+136, 200, 20, 400)){
    currentLetter ='j';
  }else if (didMouseClick(200+156, 200, 29, 400)){
    currentLetter ='k';
  }else if (didMouseClick(200+185, 200, 20, 400)){
    currentLetter ='l';
  }else if (didMouseClick(200+205, 200, 15, 400)){
    currentLetter ='m';
  }else if (didMouseClick(200+236, 200, 21, 400)){
    currentLetter ='n';
  }else if (didMouseClick(200+258, 200, 22, 400)){
    currentLetter ='o';
  }else if (didMouseClick(200+283, 200, 25, 400)){
    currentLetter ='p';
  }else if (didMouseClick(200+307, 200, 24, 400)){
    currentLetter ='q';
  }else if (didMouseClick(200+328, 200, 22, 400)){
    currentLetter ='r';
  }else if (didMouseClick(200+350, 200, 20, 400)){
    currentLetter ='s';
  }else if (didMouseClick(200+370, 200, 14, 400)){
    currentLetter ='t';
  }else if (didMouseClick(200+384, 200, 15, 400)){
    currentLetter ='u';
  }else if (didMouseClick(200+399, 200, 11, 400)){
    currentLetter ='v';
  }else if (didMouseClick(200+410, 200, 9, 400)){
    currentLetter ='w';
  }else if (didMouseClick(200+419, 200, 6, 400)){
    currentLetter ='x';
  }else if (didMouseClick(200+425, 200, 7, 400)){
    currentLetter ='y';
  }else if (didMouseClick(200+432, 200, 222, 400)){
    currentLetter ='z';
  }
  
  currentTyped+=currentLetter;
    

  //You are allowed to have a next button outside the 2" area
  if (didMouseClick(800, 00, 200, 200)) //check if click is in next button
  {
    nextTrial(); //if so, advance to next trial
  }
  }
  // call the function that we have defined with setAction
  void performAction(int direction) {
    if (m[direction] == null)
     return;
   try {
     m[direction].invoke(pApp);
   }
   catch (Exception e) {
     e.printStackTrace();
   }
  }
  // define a function that should get called when the different swipes is done
  void setAction(int direction, String method) {
    if (method != null  &&  !method.equals("")) {
       try {
        m[direction] = pApp.getClass().getMethod(method);
      }
      catch (SecurityException e) {
        e.printStackTrace();
      }
      catch (NoSuchMethodException e) {
        e.printStackTrace();
      }
    }
  }
  // attach a function to a left swipe
  void setSwipeLeft(String _funcName) {
    setAction(0, _funcName);
  }
  void setSwipeUp(String _funcName) {
    setAction(1, _funcName);
  }
  void setSwipeRight(String _funcName) {
    setAction(2, _funcName);
  }
  void setSwipeDown(String _funcName) {
    setAction(3, _funcName);
  }
}


// android touch event.
public boolean surfaceTouchEvent(MotionEvent event) {
// check what that was triggered
 switch(event.getAction()) {
 case MotionEvent.ACTION_DOWN:  // ACTION_DOWN means we put our finger down on the screen
  g.setStartTime(millis());
  g.setStartPos(new PVector(event.getX(), event.getY()));  // set our start position
  break;
 case MotionEvent.ACTION_UP:  // ACTION_UP means we pulled our finger away from the screen
  g.setEndTime(millis());
  g.setEndPos(new PVector(event.getX(), event.getY()));  // set our end position of the gesture and calculate if it was a valid one
  break;
 }
 return super.surfaceTouchEvent(event);
}

// function that is called when we areswipingupwards
void swipeUp() {
 println("a swipe up");  
  println("a swipe right");
 currentTyped = currentTyped+" ";
}
void swipeDown() {
 println("a swipe down");
  println("a swipe left");
 if(currentTyped.length()>0)currentTyped = currentTyped.substring(0,currentTyped.length()-1);

}
void swipeLeft() {
 println("a swipe left");
 if(currentTyped.length()>0)currentTyped = currentTyped.substring(0,currentTyped.length()-1);
 
}
void swipeRight() {
 println("a swipe right");
 currentTyped = currentTyped+" ";
}

Gestures g;
float epy=0;
float epx=0;
String[] phrases; //contains all of the phrases
int totalTrialNum = 4; //the total number of phrases to be tested - set this low for testing. Might be ~10 for the real bakeoff!
int currTrialNum = 0; // the current trial number (indexes into trials array above)
float startTime = 0; // time starts when the first letter is entered
float finishTime = 0; // records the time of when the final trial ends
float lastTime = 0; //the timestamp of when the last trial was completed
float lettersEnteredTotal = 0; //a running total of the number of letters the user has entered (need this for final WPM computation)
float lettersExpectedTotal = 0; //a running total of the number of letters expected (correct phrases)
float errorsTotal = 0; //a running total of the number of errors (when hitting next)
String currentPhrase = ""; //the current target phrase
String currentTyped = ""; //what the user has typed so far
final int DPIofYourDeviceScreen = 441; //you will need to look up the DPI or PPI of your device to make sure you get the right scale!!
                                      //http://en.wikipedia.org/wiki/List_of_displays_by_pixel_density
final float sizeOfInputArea = DPIofYourDeviceScreen*1; //aka, 1.0 inches square!

boolean firstClick = false;
//Variables for my silly implementation. You can delete this:
char currentLetter = 'a';
char selectedLetter = 'a';

//You can modify anything in here. This is just a basic implementation.
void setup()
{
  g=new Gestures(70,100,115,this);  // iniate the gesture object first value is minimum swipelengthin pixel and second is the diagonal offset allowed
  g.setSwipeUp("swipeUp");  // attach the function called swipeUp to the gesture ofswipingupwards
  g.setSwipeDown("swipeDown");  // attach the function called swipeDown to the gesture ofswipingdownwards
  g.setSwipeLeft("swipeLeft"); // attach the function called swipeLeft to the gesture ofswipingleft
  g.setSwipeRight("swipeRight");
               
  phrases = loadStrings("phrases2.txt"); //load the phrase set into memory
  Collections.shuffle(Arrays.asList(phrases)); //randomize the order of the phrases
    
  orientation(PORTRAIT); //can also be LANDSCAPE -- sets orientation on android device
  size(1000, 1000); //Sets the size of the app. You may want to modify this to your device. Many phones today are 1080 wide by 1920 tall.
  textFont(createFont("Arial", 24)); //set the font to arial 24
  noStroke(); //my code doesn't use any strokes.
}

//You can modify anything in here. This is just a basic implementation.
void draw()
{
  background(0); //clear background

 // image(watch,-200,200);
  fill(100);
  rect(200, 200, sizeOfInputArea, sizeOfInputArea); //input area should be 2" by 2"
  
  

               
               
  if (finishTime!=0)
  {
    fill(255);
    textAlign(CENTER);
    text("Finished", 280, 150);
    return;
  }

  if (startTime==0 & !mousePressed)
  {
    fill(255);
    textAlign(CENTER);
    text("Click to start time!", 280, 150); //display this messsage until the user clicks!
  }

  if (startTime==0 & mousePressed)
  {
    nextTrial(); //start the trials!
    firstClick = true;
  }

  if (startTime!=0)
  {
    //you will need something like the next 10 lines in your code. Output does not have to be within the 2 inch area!
    textAlign(LEFT); //align the text left
    fill(128);
    textSize(20);
    text("Phrase " + (currTrialNum+1) + " of " + totalTrialNum, 70, 50); //draw the trial count
    fill(255);
    textSize(20);
    text("Target:   " + currentPhrase, 70, 100); //draw the target string
    text("Entered:  " + currentTyped, 70, 140); //draw what the user has entered thus far 
    fill(255, 0, 0);
    rect(800, 00, 200, 200); //drag next button
    fill(255);
    textSize(20);
    text("NEXT > ", 850, 100); //draw next label


    //my draw code
    textAlign(CENTER);

    if (didMouseClick(0, 200, 215, 400)) //check if click occured in letter area
  {
    selectedLetter = 'a';
    //if (currentLetter=='_') //if underscore, consider that a space bar
    //  currentTyped+=" ";
    //else if (currentLetter=='`' & currentTyped.length()>0) //if `, treat that as a delete command
    //  currentTyped = currentTyped.substring(0, currentTyped.length()-1);
    //else if (currentLetter!='`') //if not any of the above cases, add the current letter to the typed string
    //  currentTyped+=currentLetter;
  }else if (didMouseClick(200+15, 200, 8, 400)){
    selectedLetter ='b';
  }else if (didMouseClick(200+23, 200, 10, 400)){
    selectedLetter ='c';
  }else if (didMouseClick(200+33, 200, 10, 400)){
    selectedLetter ='d';
  }else if (didMouseClick(200+43, 200, 14, 400)){
    selectedLetter ='e';
  }else if (didMouseClick(200+57, 200, 16, 400)){
    selectedLetter ='f';
  }else if (didMouseClick(200+73, 200, 19, 400)){
    selectedLetter ='g';
  }else if (didMouseClick(200+92, 200, 19, 400)){
    selectedLetter ='h';
  }else if (didMouseClick(200+113, 200, 23, 400)){
    selectedLetter ='i';
  }else if (didMouseClick(200+136, 200, 20, 400)){
    selectedLetter ='j';
  }else if (didMouseClick(200+156, 200, 29, 400)){
    selectedLetter ='k';
  }else if (didMouseClick(200+185, 200, 20, 400)){
    selectedLetter ='l';
  }else if (didMouseClick(200+205, 200, 15, 400)){
    selectedLetter ='m';
  }else if (didMouseClick(200+236, 200, 21, 400)){
    selectedLetter ='n';
  }else if (didMouseClick(200+258, 200, 22, 400)){
    selectedLetter ='o';
  }else if (didMouseClick(200+283, 200, 25, 400)){
    selectedLetter ='p';
  }else if (didMouseClick(200+307, 200, 24, 400)){
    selectedLetter ='q';
  }else if (didMouseClick(200+328, 200, 22, 400)){
    selectedLetter ='r';
  }else if (didMouseClick(200+350, 200, 20, 400)){
    selectedLetter ='s';
  }else if (didMouseClick(200+370, 200, 14, 400)){
    selectedLetter ='t';
  }else if (didMouseClick(200+384, 200, 15, 400)){
    selectedLetter ='u';
  }else if (didMouseClick(200+399, 200, 11, 400)){
    selectedLetter ='v';
  }else if (didMouseClick(200+410, 200, 9, 400)){
    selectedLetter ='w';
  }else if (didMouseClick(200+419, 200, 6, 400)){
    selectedLetter ='x';
  }else if (didMouseClick(200+425, 200, 7, 400)){
    selectedLetter ='y';
  }else if (didMouseClick(200+432, 200, 422, 400)){
    selectedLetter ='z';
  }
    
    
    
   String[] names = {"z","y","x","w","v","u","t","s","r","q","p","o","n","m","l","k","j","i","h","g","f","e","d","c","b","a"};
    float delta = -PI / names.length;
    int radius = names.length *8; 
    for(int i = 0; i<names.length; i++) {
      if ((""+selectedLetter).equals(names[i])){
        fill(0,250,0);
        textSize(50);
        //fill(209);
        //ellipse(width/2+radius * cos(i* delta)-80, height/2+radius * sin(i*delta)-30, 60,60);
      }
      else{
        fill(0,0,0);
        textSize(18);
      }
      text(names[i],width/2+radius * cos(i* delta)-80, height/2+radius * sin(i*delta) -30);
    }
    
    fill(0,250,0);
    textSize(100);
    text("" + selectedLetter, 200+sizeOfInputArea/2, 200+sizeOfInputArea/3); //draw current letter
   
  }
  
}



boolean didMouseClick(float x, float y, float w, float h) //simple function to do hit testing
{
  return (mouseX > x && mouseX<x+w && mouseY>y && mouseY<y+h); //check to see if it is in button bounds
}


void mouseReleased()
{
  if(firstClick){
    firstClick = false;
    return;
  }
  print("mouseX:" + mouseX+"  mouseY:"+mouseY+"\n");
  //print("width:" + width);
  //print((atan((mouseY*1.0)/(1.0*mouseX) )*180.0)/PI+"\n");
  //if (didMouseClick(200, 200+sizeOfInputArea/2, sizeOfInputArea/2, sizeOfInputArea/2)) //check if click in left button
  //{
  //  currentLetter --;
  //  if (currentLetter<'_') //wrap around to z
  //    currentLetter = 'z';
  //}

  //if (didMouseClick(200+sizeOfInputArea/2, 200+sizeOfInputArea/2, sizeOfInputArea/2, sizeOfInputArea/2)) //check if click in right button
  //{
  //  currentLetter ++;
  //  if (currentLetter>'z') //wrap back to space (aka underscore)
  //    currentLetter = '_';
  //}

  //if (didMouseClick(200, 200, sizeOfInputArea, sizeOfInputArea/2)) //check if click occured in letter area
  //{
  if (didMouseClick(0, 200, 215, 400)) //check if click occured in letter area
  {
    currentLetter = 'a';
    //if (currentLetter=='_') //if underscore, consider that a space bar
    //  currentTyped+=" ";
    //else if (currentLetter=='`' & currentTyped.length()>0) //if `, treat that as a delete command
    //  currentTyped = currentTyped.substring(0, currentTyped.length()-1);
    //else if (currentLetter!='`') //if not any of the above cases, add the current letter to the typed string
    //  currentTyped+=currentLetter;
  }else if (didMouseClick(200+15, 200, 8, 400)){
    currentLetter ='b';
  }else if (didMouseClick(200+23, 200, 10, 400)){
    currentLetter ='c';
  }else if (didMouseClick(200+33, 200, 10, 400)){
    currentLetter ='d';
  }else if (didMouseClick(200+43, 200, 14, 400)){
    currentLetter ='e';
  }else if (didMouseClick(200+57, 200, 16, 400)){
    currentLetter ='f';
  }else if (didMouseClick(200+73, 200, 19, 400)){
    currentLetter ='g';
  }else if (didMouseClick(200+92, 200, 19, 400)){
    currentLetter ='h';
  }else if (didMouseClick(200+113, 200, 23, 400)){
    currentLetter ='i';
  }else if (didMouseClick(200+136, 200, 20, 400)){
    currentLetter ='j';
  }else if (didMouseClick(200+156, 200, 29, 400)){
    currentLetter ='k';
  }else if (didMouseClick(200+185, 200, 20, 400)){
    currentLetter ='l';
  }else if (didMouseClick(200+205, 200, 15, 400)){
    currentLetter ='m';
  }else if (didMouseClick(200+236, 200, 21, 400)){
    currentLetter ='n';
  }else if (didMouseClick(200+258, 200, 22, 400)){
    currentLetter ='o';
  }else if (didMouseClick(200+283, 200, 25, 400)){
    currentLetter ='p';
  }else if (didMouseClick(200+307, 200, 24, 400)){
    currentLetter ='q';
  }else if (didMouseClick(200+328, 200, 22, 400)){
    currentLetter ='r';
  }else if (didMouseClick(200+350, 200, 20, 400)){
    currentLetter ='s';
  }else if (didMouseClick(200+370, 200, 14, 400)){
    currentLetter ='t';
  }else if (didMouseClick(200+384, 200, 15, 400)){
    currentLetter ='u';
  }else if (didMouseClick(200+399, 200, 11, 400)){
    currentLetter ='v';
  }else if (didMouseClick(200+410, 200, 9, 400)){
    currentLetter ='w';
  }else if (didMouseClick(200+419, 200, 6, 400)){
    currentLetter ='x';
  }else if (didMouseClick(200+425, 200, 7, 400)){
    currentLetter ='y';
  }else if (didMouseClick(200+432, 200, 522, 400)){
    currentLetter ='z';
  }
  

}


void nextTrial()
{
  if (currTrialNum >= totalTrialNum) //check to see if experiment is done
    return; //if so, just return

    if (startTime!=0 && finishTime==0) //in the middle of trials
  {
    System.out.println("==================");
    System.out.println("Phrase " + (currTrialNum+1) + " of " + totalTrialNum); //output
    System.out.println("Target phrase: " + currentPhrase); //output
    System.out.println("Phrase length: " + currentPhrase.length()); //output
    System.out.println("User typed: " + currentTyped); //output
    System.out.println("User typed length: " + currentTyped.length()); //output
    System.out.println("Number of errors: " + computeLevenshteinDistance(currentTyped.trim(), currentPhrase.trim())); //trim whitespace and compute errors
    System.out.println("Time taken on this trial: " + (millis()-lastTime)); //output
    System.out.println("Time taken since beginning: " + (millis()-startTime)); //output
    System.out.println("==================");
    lettersExpectedTotal+=currentPhrase.length();
    lettersEnteredTotal+=currentTyped.length();
    errorsTotal+=computeLevenshteinDistance(currentTyped.trim(), currentPhrase.trim());
  }

  if (currTrialNum == totalTrialNum-1) //check to see if experiment just finished
  {
    finishTime = millis();
    System.out.println("==================");
    System.out.println("Trials complete!"); //output
    System.out.println("Total time taken: " + (finishTime - startTime)); //output
    System.out.println("Total letters entered: " + lettersEnteredTotal); //output
    System.out.println("Total letters expected: " + lettersExpectedTotal); //output
    System.out.println("Total errors entered: " + errorsTotal); //output
    System.out.println("WPM: " + (lettersEnteredTotal/5.0f)/((finishTime - startTime)/60000f)); //output
    System.out.println("==================");
    currTrialNum++; //increment by one so this mesage only appears once when all trials are done
    return;
  }

  if (startTime==0) //first trial starting now
  {
    System.out.println("Trials beginning! Starting timer..."); //output we're done
    startTime = millis(); //start the timer!
  }
  else
  {
    currTrialNum++; //increment trial number
  }

  lastTime = millis(); //record the time of when this trial ended
  currentTyped = ""; //clear what is currently typed preparing for next trial
  currentPhrase = phrases[currTrialNum]; // load the next phrase!
  //currentPhrase = "abc"; // uncomment this to override the test phrase (useful for debugging)
}




//=========SHOULD NOT NEED TO TOUCH THIS METHOD AT ALL!==============
int computeLevenshteinDistance(String phrase1, String phrase2) //this computers error between two strings
{
  int[][] distance = new int[phrase1.length() + 1][phrase2.length() + 1];

  for (int i = 0; i <= phrase1.length(); i++)
    distance[i][0] = i;
  for (int j = 1; j <= phrase2.length(); j++)
    distance[0][j] = j;

  for (int i = 1; i <= phrase1.length(); i++)
    for (int j = 1; j <= phrase2.length(); j++)
      distance[i][j] = min(min(distance[i - 1][j] + 1, distance[i][j - 1] + 1), distance[i - 1][j - 1] + ((phrase1.charAt(i - 1) == phrase2.charAt(j - 1)) ? 0 : 1));

  return distance[phrase1.length()][phrase2.length()];
}