1 /*
2  * Copyright (C) 2014 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.graphics.RectF;
21 import android.util.AttributeSet;
22 import android.view.View;
23 import android.widget.FrameLayout;
24 
25 import com.android.camera.CaptureLayoutHelper;
26 import com.android.camera.debug.Log;
27 import com.android.camera2.R;
28 
29 /**
30  * The goal of this class is to ensure mode options is always laid out to
31  * the left of or above bottom bar in landscape or portrait respectively.
32  * All the other children in this view group can be expected to be laid out
33  * the same way as they are in a normal FrameLayout.
34  */
35 public class BottomBarModeOptionsWrapper extends FrameLayout {
36 
37     private final static Log.Tag TAG = new Log.Tag("BottomBarWrapper");
38     private View mModeOptionsOverlay;
39     private View mBottomBar;
40     private CaptureLayoutHelper mCaptureLayoutHelper = null;
41 
BottomBarModeOptionsWrapper(Context context, AttributeSet attrs)42     public BottomBarModeOptionsWrapper(Context context, AttributeSet attrs) {
43         super(context, attrs);
44     }
45 
46     @Override
onFinishInflate()47     public void onFinishInflate() {
48         mModeOptionsOverlay = findViewById(R.id.mode_options_overlay);
49         mBottomBar = findViewById(R.id.bottom_bar);
50     }
51 
52     /**
53      * Sets a capture layout helper to query layout rect from.
54      */
setCaptureLayoutHelper(CaptureLayoutHelper helper)55     public void setCaptureLayoutHelper(CaptureLayoutHelper helper) {
56         mCaptureLayoutHelper = helper;
57     }
58 
59     @Override
onLayout(boolean changed, int left, int top, int right, int bottom)60     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
61         if (mCaptureLayoutHelper == null) {
62             Log.e(TAG, "Capture layout helper needs to be set first.");
63             return;
64         }
65         RectF uncoveredPreviewRect = mCaptureLayoutHelper.getUncoveredPreviewRect();
66         RectF bottomBarRect = mCaptureLayoutHelper.getBottomBarRect();
67 
68         mModeOptionsOverlay.layout((int) uncoveredPreviewRect.left, (int) uncoveredPreviewRect.top,
69                 (int) uncoveredPreviewRect.right, (int) uncoveredPreviewRect.bottom);
70         mBottomBar.layout((int) bottomBarRect.left, (int) bottomBarRect.top,
71                 (int) bottomBarRect.right, (int) bottomBarRect.bottom);
72     }
73 }