1 /*
2  * Copyright (C) 2012 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.camera.ui;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.view.SurfaceHolder;
22 import android.view.SurfaceView;
23 import android.view.ViewGroup;
24 
25 import com.android.gallery3d.common.ApiHelper;
26 
27 public class PreviewSurfaceView extends SurfaceView {
PreviewSurfaceView(Context context, AttributeSet attrs)28     public PreviewSurfaceView(Context context, AttributeSet attrs) {
29         super(context, attrs);
30         setZOrderMediaOverlay(true);
31         getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
32     }
33 
shrink()34     public void shrink() {
35         setLayoutSize(1);
36     }
37 
expand()38     public void expand() {
39         setLayoutSize(ViewGroup.LayoutParams.MATCH_PARENT);
40     }
41 
setLayoutSize(int size)42     private void setLayoutSize(int size) {
43         ViewGroup.LayoutParams p = getLayoutParams();
44         if (p.width != size || p.height != size) {
45             p.width = size;
46             p.height = size;
47             setLayoutParams(p);
48         }
49     }
50 }
51