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      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 
     42     public BottomBarModeOptionsWrapper(Context context, AttributeSet attrs) {
     43         super(context, attrs);
     44     }
     45 
     46     @Override
     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      */
     55     public void setCaptureLayoutHelper(CaptureLayoutHelper helper) {
     56         mCaptureLayoutHelper = helper;
     57     }
     58 
     59     @Override
     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 }