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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.videoeditor.widgets;
     18 
     19 import android.content.Context;
     20 import android.util.AttributeSet;
     21 import android.view.GestureDetector;
     22 import android.view.MotionEvent;
     23 import android.view.SurfaceView;
     24 
     25 /**
     26  * Surface view for video preview.
     27  */
     28 public class PreviewSurfaceView extends SurfaceView {
     29     private GestureDetector mSimpleGestureDetector;
     30 
     31     public PreviewSurfaceView(Context context, AttributeSet attrs, int defStyle) {
     32         super(context, attrs, defStyle);
     33     }
     34 
     35     public PreviewSurfaceView(Context context, AttributeSet attrs) {
     36         this(context, attrs, 0);
     37     }
     38 
     39     public PreviewSurfaceView(Context context) {
     40         this(context, null, 0);
     41     }
     42 
     43     /**
     44      * @param detector The gesture detector
     45      */
     46     public void setGestureListener(GestureDetector detector) {
     47         mSimpleGestureDetector = detector;
     48     }
     49 
     50     @Override
     51     public boolean onTouchEvent(MotionEvent ev) {
     52         // Let the gesture detector inspect all events.
     53         if (mSimpleGestureDetector != null) {
     54             mSimpleGestureDetector.onTouchEvent(ev);
     55         }
     56 
     57         super.onTouchEvent(ev);
     58         return true;
     59     }
     60 }
     61