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package com.macaroon.piztor;
import android.app.Activity;
import android.graphics.Matrix;
import android.graphics.PointF;
import android.os.Bundle;
import android.os.SystemClock;
import android.util.FloatMath;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.widget.ImageView;
public class MultiTouchListener implements OnTouchListener {
private Matrix matrix = new Matrix();
private Matrix preMatrix = new Matrix();
private static final int NONE = 0;
private static final int DRAG = 1;
private static final int ZOOM = 2;
private int mode = NONE;
private PointF start = new PointF();
private PointF mid = new PointF();
private float preDis = 1f;
private float d = 0f;
private float newRot = 0f;
private float[] values;
@Override
public boolean onTouch(View v, MotionEvent event) {
float[] values = new float[9];
matrix.getValues(values);
//System.out.println("1111111"+values[1]);
//Log.d("Touch", "onTouch.......");
ImageView view = (ImageView) v;
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
//Log.d("Touch", "ACTION_DOWN");
preMatrix.set(matrix);
start.set(event.getX(), event.getY());
mode = DRAG;
break;
case MotionEvent.ACTION_POINTER_DOWN:
//Log.d("Touch", "ACTION_POINTER_DOWN");
preDis = spacing(event);
if(preDis > 10f) {
preMatrix.set(matrix);
midPoint(mid, event);
mode = ZOOM;
}
break;
case MotionEvent.ACTION_UP:
//Log.d("Touch", "ACTION_UP");
case MotionEvent.ACTION_POINTER_UP:
//Log.d("Touch", "ACTION_POINTER_UP");
mode = NONE;
break;
case MotionEvent.ACTION_MOVE:
//Log.d("Touch", "ACTION_MOVE");
if(mode == DRAG) {
//Log.d("Touch", "Draging");
matrix.set(preMatrix);
float dx = event.getX() - start.x;
float dy = event.getY() - start.y;
matrix.postTranslate(dx, dy);
} else if (mode == ZOOM) {
//Log.d("Touch","Zooming");
float newDis = spacing(event);
if (newDis > 10f) {
matrix.set(preMatrix);
float scale = (newDis / preDis);
matrix.postScale(scale,scale,mid.x,mid.y);
//System.out.println("ssssssssssssssssss" + scale);
}
}
break;
}
matrix.getValues(values);
//System.out.println("222222"+values[1]);
view.setImageMatrix(matrix);
matrix.getValues(values);
//System.out.println("333333"+values[1]);
return true;
}
private float spacing(MotionEvent event) {
float x = event.getX(0) - event.getX(1);
float y = event.getY(0) - event.getY(1);
return FloatMath.sqrt(x * x + y * y);
}
private void midPoint(PointF point, MotionEvent event) {
float x = event.getX(0) + event.getY(1);
float y = event.getY(0) + event.getY(1);
point.set(x / 2, y / 2);
}
}
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