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-rw-r--r--client/Piztor/src/com/macaroon/piztor/MultiTouchListener.java102
1 files changed, 102 insertions, 0 deletions
diff --git a/client/Piztor/src/com/macaroon/piztor/MultiTouchListener.java b/client/Piztor/src/com/macaroon/piztor/MultiTouchListener.java
new file mode 100644
index 0000000..2bd379d
--- /dev/null
+++ b/client/Piztor/src/com/macaroon/piztor/MultiTouchListener.java
@@ -0,0 +1,102 @@
+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);
+ }
+}