418 lines
16 KiB
Java
418 lines
16 KiB
Java
package com.affectiva.affdexme;
|
|
|
|
import android.content.Context;
|
|
import android.content.res.TypedArray;
|
|
import android.graphics.Canvas;
|
|
import android.graphics.Color;
|
|
import android.graphics.Paint;
|
|
import android.graphics.PixelFormat;
|
|
import android.graphics.PointF;
|
|
import android.graphics.PorterDuff;
|
|
import android.graphics.Typeface;
|
|
import android.os.Process;
|
|
import android.os.SystemClock;
|
|
import android.util.AttributeSet;
|
|
import android.util.Log;
|
|
import android.view.SurfaceHolder;
|
|
import android.view.SurfaceView;
|
|
|
|
import com.affectiva.android.affdex.sdk.detector.Face;
|
|
|
|
|
|
/**
|
|
* This class contains a SurfaceView and its own thread that draws to it.
|
|
* It is used to display the facial tracking dots over a user's face.
|
|
*/
|
|
public class DrawingView extends SurfaceView implements SurfaceHolder.Callback {
|
|
|
|
class PointFArraySharer {
|
|
boolean isPointsMirrored = false;
|
|
PointF[] nextPointsToDraw = null;
|
|
}
|
|
|
|
//Inner Thread class
|
|
class DrawingThread extends Thread{
|
|
private SurfaceHolder mSurfaceHolder;
|
|
private Paint circlePaint;
|
|
private Paint boxPaint;
|
|
private volatile boolean stopFlag = false; //boolean to indicate when thread has been told to stop
|
|
private final PointFArraySharer sharer;
|
|
private DrawingViewConfig config;
|
|
private final long drawPeriod = 33; //draw at 30 fps
|
|
|
|
private final int TEXT_RAISE = 10;
|
|
|
|
String roll = "";
|
|
String yaw = "";
|
|
String pitch = "";
|
|
String interOcDis = "";
|
|
|
|
public DrawingThread(SurfaceHolder surfaceHolder, DrawingViewConfig con) {
|
|
mSurfaceHolder = surfaceHolder;
|
|
|
|
circlePaint = new Paint();
|
|
circlePaint.setColor(Color.WHITE);
|
|
boxPaint = new Paint();
|
|
boxPaint.setColor(Color.WHITE);
|
|
boxPaint.setStyle(Paint.Style.STROKE);
|
|
|
|
config = con;
|
|
sharer = new PointFArraySharer();
|
|
|
|
setThickness(config.drawThickness);
|
|
}
|
|
|
|
void setMetrics(float roll, float yaw, float pitch, float interOcDis, float valence) {
|
|
//format string for our DrawingView to use when ready
|
|
this.roll = String.format("%.2f",roll);
|
|
this.yaw = String.format("%.2f",yaw);
|
|
this.pitch = String.format("%.2f",pitch);
|
|
this.interOcDis = String.format("%.2f",interOcDis);
|
|
|
|
//prepare the color of the bounding box using the valence score. Red for -100, White for 0, and Green for +100, with linear interpolation in between.
|
|
if (valence > 0) {
|
|
float colorScore = ((100f-valence)/100f)*255;
|
|
boxPaint.setColor(Color.rgb((int)colorScore,255,(int)colorScore));
|
|
} else {
|
|
float colorScore = ((100f+valence)/100f)*255;
|
|
boxPaint.setColor(Color.rgb(255, (int) colorScore, (int) colorScore));
|
|
}
|
|
|
|
}
|
|
|
|
public void stopThread() {
|
|
stopFlag = true;
|
|
}
|
|
|
|
public boolean isStopped() {
|
|
return stopFlag;
|
|
}
|
|
|
|
//Updates thread with latest points returned by the onImageResults() event.
|
|
public void updatePoints(PointF[] pointList, boolean isPointsMirrored) {
|
|
synchronized (sharer) {
|
|
sharer.nextPointsToDraw = pointList;
|
|
sharer.isPointsMirrored = isPointsMirrored;
|
|
}
|
|
}
|
|
|
|
void setThickness(int thickness) {
|
|
boxPaint.setStrokeWidth(thickness);
|
|
}
|
|
|
|
//Inform thread face detection has stopped, so array of points is no longer valid.
|
|
public void invalidatePoints() {
|
|
synchronized (sharer) {
|
|
sharer.nextPointsToDraw = null;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
|
|
|
|
while(!stopFlag) {
|
|
|
|
/**
|
|
* We use SurfaceHolder.lockCanvas() to get the canvas that draws to the SurfaceView.
|
|
* After we are done drawing, we let go of the canvas using SurfaceHolder.unlockCanvasAndPost()
|
|
* **/
|
|
Canvas c = null;
|
|
try {
|
|
c = mSurfaceHolder.lockCanvas();
|
|
|
|
if (c!= null) {
|
|
synchronized (mSurfaceHolder) {
|
|
c.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR); //clear previous dots
|
|
draw(c);
|
|
}
|
|
}
|
|
}
|
|
finally {
|
|
if (c!= null) {
|
|
mSurfaceHolder.unlockCanvasAndPost(c);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
config = null; //nullify object to avoid memory leak
|
|
}
|
|
|
|
void draw(Canvas c) {
|
|
PointF[] points;
|
|
boolean mirrorPoints;
|
|
synchronized (sharer) {
|
|
if (sharer.nextPointsToDraw == null)
|
|
return;
|
|
points = sharer.nextPointsToDraw;
|
|
mirrorPoints = sharer.isPointsMirrored;
|
|
}
|
|
|
|
//Coordinates around which to draw bounding box.
|
|
float leftBx = config.surfaceViewWidth;
|
|
float rightBx = 0;
|
|
float topBx = config.surfaceViewHeight;
|
|
float botBx = 0;
|
|
|
|
for (int i = 0; i < points.length; i++) {
|
|
|
|
//transform from the camera coordinates to our screen coordinates
|
|
//The camera preview is displayed as a mirror, so X pts have to be mirrored back.
|
|
float x;
|
|
if (mirrorPoints) {
|
|
x = (config.imageWidth - points[i].x) * config.screenToImageRatio;
|
|
} else {
|
|
x = (points[i].x) * config.screenToImageRatio;
|
|
}
|
|
float y = (points[i].y)* config.screenToImageRatio;
|
|
|
|
//We determine the left-most, top-most, right-most, and bottom-most points to draw the bounding box around.
|
|
if (x < leftBx)
|
|
leftBx = x;
|
|
if (x > rightBx)
|
|
rightBx = x;
|
|
if (y < topBx)
|
|
topBx = y;
|
|
if (y > botBx)
|
|
botBx = y;
|
|
|
|
//Draw facial tracking dots.
|
|
if (config.isDrawPointsEnabled) {
|
|
c.drawCircle(x, y, config.drawThickness, circlePaint);
|
|
}
|
|
}
|
|
|
|
//Draw the bounding box.
|
|
if (config.isDrawPointsEnabled) {
|
|
c.drawRect(leftBx, topBx, rightBx, botBx, boxPaint);
|
|
}
|
|
|
|
//Draw the measurement metrics, with a dark border around the words to make them visible for users of all skin colors.
|
|
if (config.isDrawMeasurementsEnabled) {
|
|
float centerBx = (leftBx + rightBx) / 2;
|
|
|
|
float upperText = topBx - TEXT_RAISE;
|
|
c.drawText("PITCH", centerBx, upperText - config.textSize,config.textBorderPaint);
|
|
c.drawText("PITCH", centerBx, upperText - config.textSize, config.textPaint);
|
|
c.drawText(pitch,centerBx ,upperText ,config.textBorderPaint);
|
|
c.drawText(pitch, centerBx, upperText, config.textPaint);
|
|
|
|
float upperLeft = centerBx - config.upperTextSpacing;
|
|
|
|
c.drawText("YAW", upperLeft , upperText - config.textSize , config.textBorderPaint);
|
|
c.drawText("YAW", upperLeft, upperText - config.textSize, config.textPaint);
|
|
c.drawText(yaw, upperLeft , upperText , config.textBorderPaint);
|
|
c.drawText(yaw, upperLeft, upperText, config.textPaint);
|
|
|
|
float upperRight = centerBx + config.upperTextSpacing;
|
|
c.drawText("ROLL", upperRight , upperText - config.textSize , config.textBorderPaint);
|
|
c.drawText("ROLL", upperRight, upperText - config.textSize, config.textPaint);
|
|
c.drawText(roll, upperRight , upperText , config.textBorderPaint);
|
|
c.drawText(roll, upperRight, upperText, config.textPaint);
|
|
|
|
c.drawText("INTEROCULAR DISTANCE", centerBx , botBx + config.textSize , config.textBorderPaint);
|
|
c.drawText("INTEROCULAR DISTANCE", centerBx, botBx + config.textSize, config.textPaint);
|
|
c.drawText(interOcDis,centerBx , botBx + config.textSize*2 , config.textBorderPaint);
|
|
c.drawText(interOcDis, centerBx, botBx + config.textSize * 2, config.textPaint);
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
|
|
class DrawingViewConfig {
|
|
private int imageHeight = 1;
|
|
private int imageWidth = 1;
|
|
private int surfaceViewWidth = 0;
|
|
private int surfaceViewHeight = 0;
|
|
private float screenToImageRatio = 0;
|
|
private int drawThickness = 0;
|
|
private boolean isDrawPointsEnabled = true; //by default, have the drawing thread draw tracking dots
|
|
private boolean isDrawMeasurementsEnabled = false;
|
|
private boolean isDimensionsNeeded = true;
|
|
|
|
private Paint textPaint;
|
|
private int textSize;
|
|
private Paint textBorderPaint;
|
|
private int upperTextSpacing;
|
|
|
|
public void setMeasurementMetricConfigs(Paint textPaint, Paint dropShadowPaint, int textSize, int upperTextSpacing) {
|
|
this.textPaint = textPaint;
|
|
this.textSize = textSize;
|
|
this.textBorderPaint = dropShadowPaint;
|
|
this.upperTextSpacing = upperTextSpacing;
|
|
}
|
|
|
|
public void updateViewDimensions(int surfaceViewWidth, int surfaceViewHeight, int imageWidth, int imageHeight) {
|
|
if (surfaceViewWidth <= 0 || surfaceViewHeight <= 0 || imageWidth <= 0 || imageHeight <= 0) {
|
|
throw new IllegalArgumentException("All dimensions submitted to updateViewDimensions() must be positive");
|
|
}
|
|
this.imageWidth = imageWidth;
|
|
this.imageHeight = imageHeight;
|
|
this.surfaceViewWidth = surfaceViewWidth;
|
|
this.surfaceViewHeight = surfaceViewHeight;
|
|
screenToImageRatio = (float)surfaceViewWidth / imageWidth;
|
|
isDimensionsNeeded = false;
|
|
}
|
|
|
|
public void setDrawThickness(int t) {
|
|
|
|
if ( t <= 0) {
|
|
throw new IllegalArgumentException("Thickness must be positive.");
|
|
}
|
|
|
|
drawThickness = t;
|
|
}
|
|
}
|
|
|
|
//Class variables of DrawingView class
|
|
private SurfaceHolder surfaceHolder;
|
|
private DrawingThread drawingThread; //DrawingThread object
|
|
private Typeface typeface;
|
|
private DrawingViewConfig drawingViewConfig;
|
|
private static String LOG_TAG = "AffdexMe";
|
|
|
|
|
|
//three constructors required of any custom view
|
|
public DrawingView(Context context) {
|
|
super(context);
|
|
initView(context, null);
|
|
}
|
|
public DrawingView(Context context, AttributeSet attrs) {
|
|
super(context, attrs);
|
|
initView(context, attrs);
|
|
}
|
|
public DrawingView(Context context, AttributeSet attrs, int defStyle) {
|
|
super(context, attrs, defStyle);
|
|
initView(context, attrs);
|
|
}
|
|
|
|
void initView(Context context, AttributeSet attrs){
|
|
surfaceHolder = getHolder(); //The SurfaceHolder object will be used by the thread to request canvas to draw on SurfaceView
|
|
surfaceHolder.setFormat(PixelFormat.TRANSPARENT); //set to Transparent so this surfaceView does not obscure the one it is overlaying (the one displaying the camera).
|
|
surfaceHolder.addCallback(this); //become a Listener to the three events below that SurfaceView throws
|
|
|
|
drawingViewConfig = new DrawingViewConfig();
|
|
|
|
//default values
|
|
int upperTextSpacing = 15;
|
|
int textSize = 15;
|
|
|
|
Paint measurementTextPaint = new Paint();
|
|
measurementTextPaint.setStyle(Paint.Style.FILL);
|
|
measurementTextPaint.setTextAlign(Paint.Align.CENTER);
|
|
|
|
Paint dropShadow = new Paint();
|
|
dropShadow.setColor(Color.BLACK);
|
|
dropShadow.setStyle(Paint.Style.STROKE);
|
|
dropShadow.setTextAlign(Paint.Align.CENTER);
|
|
|
|
//load and parse XML attributes
|
|
if (attrs != null) {
|
|
TypedArray a = getContext().obtainStyledAttributes(attrs,R.styleable.drawing_view_attributes,0,0);
|
|
upperTextSpacing = a.getDimensionPixelSize(R.styleable.drawing_view_attributes_measurements_upper_spacing,upperTextSpacing);
|
|
measurementTextPaint.setColor(a.getColor(R.styleable.drawing_view_attributes_measurements_color,Color.WHITE));
|
|
dropShadow.setColor(a.getColor(R.styleable.drawing_view_attributes_measurements_text_border_color,Color.BLACK));
|
|
dropShadow.setStrokeWidth(a.getInteger(R.styleable.drawing_view_attributes_measurements_text_border_thickness,5));
|
|
textSize = a.getDimensionPixelSize(R.styleable.drawing_view_attributes_measurements_text_size,textSize);
|
|
measurementTextPaint.setTextSize(textSize);
|
|
dropShadow.setTextSize(textSize);
|
|
a.recycle();
|
|
}
|
|
|
|
drawingViewConfig.setMeasurementMetricConfigs(measurementTextPaint, dropShadow, textSize, upperTextSpacing);
|
|
|
|
drawingThread = new DrawingThread(surfaceHolder, drawingViewConfig);
|
|
}
|
|
|
|
public void setTypeface(Typeface face) {
|
|
drawingViewConfig.textPaint.setTypeface(face);
|
|
drawingViewConfig.textBorderPaint.setTypeface(face);
|
|
}
|
|
|
|
@Override
|
|
public void surfaceCreated(SurfaceHolder holder) {
|
|
if (drawingThread.isStopped()) {
|
|
drawingThread = new DrawingThread(surfaceHolder, drawingViewConfig);
|
|
}
|
|
drawingThread.start();
|
|
}
|
|
|
|
@Override
|
|
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
|
|
}
|
|
|
|
@Override
|
|
public void surfaceDestroyed(SurfaceHolder holder) {
|
|
//command thread to stop, and wait until it stops
|
|
boolean retry = true;
|
|
drawingThread.stopThread();
|
|
while (retry) {
|
|
try {
|
|
drawingThread.join();
|
|
retry = false;
|
|
} catch (InterruptedException e) {
|
|
Log.e(LOG_TAG,e.getMessage());
|
|
}
|
|
}
|
|
}
|
|
|
|
public boolean isDimensionsNeeded() {
|
|
return drawingViewConfig.isDimensionsNeeded;
|
|
}
|
|
|
|
public void invalidateDimensions() {
|
|
drawingViewConfig.isDimensionsNeeded = true;
|
|
}
|
|
|
|
public void updateViewDimensions(int surfaceViewWidth, int surfaceViewHeight, int imageWidth, int imageHeight) {
|
|
try {
|
|
drawingViewConfig.updateViewDimensions(surfaceViewWidth,surfaceViewHeight,imageWidth,imageHeight);
|
|
} catch (Exception e) {
|
|
Log.e(LOG_TAG,e.getMessage());
|
|
}
|
|
}
|
|
|
|
public void setThickness(int t) {
|
|
drawingViewConfig.setDrawThickness(t);
|
|
try {
|
|
drawingThread.setThickness(t);
|
|
} catch(Exception e) {
|
|
Log.e(LOG_TAG,e.getMessage());
|
|
}
|
|
}
|
|
|
|
public void setDrawPointsEnabled(boolean b){
|
|
drawingViewConfig.isDrawPointsEnabled = b;
|
|
}
|
|
|
|
public boolean getDrawPointsEnabled() {
|
|
return drawingViewConfig.isDrawPointsEnabled;
|
|
}
|
|
|
|
public void setDrawMeasurementsEnabled(boolean b) {
|
|
drawingViewConfig.isDrawMeasurementsEnabled = b;
|
|
}
|
|
|
|
public boolean getDrawMeasurementsEnabled() {
|
|
return drawingViewConfig.isDrawMeasurementsEnabled;
|
|
}
|
|
|
|
public void setMetrics(float roll, float yaw, float pitch, float interOcDis, float valence) {
|
|
drawingThread.setMetrics(roll,yaw,pitch,interOcDis,valence);
|
|
}
|
|
|
|
public void updatePoints(PointF[] points, boolean isPointsMirrored) {
|
|
drawingThread.updatePoints(points, isPointsMirrored);
|
|
}
|
|
|
|
public void invalidatePoints(){
|
|
drawingThread.invalidatePoints();
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|