From 75d88355491fd6ab8fe625b414c20836dc15e53b Mon Sep 17 00:00:00 2001 From: sjtufs Date: Mon, 26 Aug 2013 12:48:17 +0800 Subject: add basic touch controller --- .../com/macaroon/piztor/MultiTouchListener.java | 102 +++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 client/Piztor/src/com/macaroon/piztor/MultiTouchListener.java (limited to 'client/Piztor/src/com') 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); + } +} -- cgit v1.2.3-70-g09d2