1 /*
2  * Copyright (C) 2015 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.messaging.ui.conversation;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.widget.LinearLayout;
22 
23 import com.android.messaging.R;
24 
25 public class MessageBubbleBackground extends LinearLayout {
26     private final  int mSnapWidthPixels;
27 
MessageBubbleBackground(Context context, AttributeSet attrs)28     public MessageBubbleBackground(Context context, AttributeSet attrs) {
29         super(context, attrs);
30         mSnapWidthPixels = context.getResources().getDimensionPixelSize(
31                 R.dimen.conversation_bubble_width_snap);
32     }
33 
34     @Override
onMeasure(int widthMeasureSpec, int heightMeasureSpec)35     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
36         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
37         final int widthPadding = getPaddingLeft() + getPaddingRight();
38         int bubbleWidth = getMeasuredWidth() - widthPadding;
39         final int maxWidth = MeasureSpec.getSize(widthMeasureSpec) - widthPadding;
40         // Round up to next snapWidthPixels
41         bubbleWidth = Math.min(maxWidth,
42                 (int) (Math.ceil(bubbleWidth / (float) mSnapWidthPixels) * mSnapWidthPixels));
43         super.onMeasure(
44                 MeasureSpec.makeMeasureSpec(bubbleWidth + widthPadding, MeasureSpec.EXACTLY),
45                 heightMeasureSpec);
46     }
47 }
48