Android Open Source - model-explorer User Event

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License

The source code is released under:

Apache License

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Java Source Code

package com.etaoin.myopengltest.core.main.events;
//from w w w  .  j ava 2 s  .c  o m
import android.view.MotionEvent;

public class UserEvent {

  private MotionEvent nativeEvent;
  private float previousTouchX;
  private float previousTouchY;
  private int height;
  private int width;
  private float deltaX;
  private float deltaY;

  public UserEvent(MotionEvent event, float previousTouchX, float previousTouchY, int height, int width) {
    nativeEvent = event;
    this.previousTouchX = previousTouchX;
    this.previousTouchY = previousTouchY;
    this.height = height;
    this.width = width;

    computeDeltas();
  }

  public float getDeltaX() {
    return deltaX;
  }

  public float getDeltaY() {
    return deltaY;
  }

  private void computeDeltas() {
    float x = nativeEvent.getX();
    float y = nativeEvent.getY();

    deltaX = x - previousTouchX;
    deltaY = y - previousTouchY;

    if (y > height / 2) {
      deltaX = -deltaX;
    }

    if (x < width / 2) {
      deltaY = -deltaY;
    }
  }
}

Java Source Code List