OLD | NEW |
(Empty) | |
| 1 /* |
| 2 * Copyright 2015 The WebRTC Project Authors. All rights reserved. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 package org.appspot.apprtc; |
| 12 |
| 13 import android.content.Context; |
| 14 import android.util.AttributeSet; |
| 15 import android.view.View; |
| 16 import android.view.ViewGroup; |
| 17 |
| 18 /** |
| 19 * Simple container that confines the children to a subrectangle specified as pe
rcentage values of |
| 20 * the container size. The children are centered horizontally and vertically ins
ide the confined |
| 21 * space. |
| 22 */ |
| 23 public class PercentFrameLayout extends ViewGroup { |
| 24 private int xPercent = 0; |
| 25 private int yPercent = 0; |
| 26 private int widthPercent = 100; |
| 27 private int heightPercent = 100; |
| 28 |
| 29 public PercentFrameLayout(Context context) { |
| 30 super(context); |
| 31 } |
| 32 |
| 33 public PercentFrameLayout(Context context, AttributeSet attrs) { |
| 34 super(context, attrs); |
| 35 } |
| 36 |
| 37 public PercentFrameLayout(Context context, AttributeSet attrs, int defStyleAtt
r) { |
| 38 super(context, attrs, defStyleAttr); |
| 39 } |
| 40 |
| 41 public void setPosition(int xPercent, int yPercent, int widthPercent, int heig
htPercent) { |
| 42 this.xPercent = xPercent; |
| 43 this.yPercent = yPercent; |
| 44 this.widthPercent = widthPercent; |
| 45 this.heightPercent = heightPercent; |
| 46 } |
| 47 |
| 48 @Override |
| 49 public boolean shouldDelayChildPressedState() { |
| 50 return false; |
| 51 } |
| 52 |
| 53 @Override |
| 54 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| 55 final int width = getDefaultSize(Integer.MAX_VALUE, widthMeasureSpec); |
| 56 final int height = getDefaultSize(Integer.MAX_VALUE, heightMeasureSpec); |
| 57 setMeasuredDimension( |
| 58 MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY), |
| 59 MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY)); |
| 60 |
| 61 final int childWidthMeasureSpec = |
| 62 MeasureSpec.makeMeasureSpec(width * widthPercent / 100, MeasureSpec.AT_M
OST); |
| 63 final int childHeightMeasureSpec = |
| 64 MeasureSpec.makeMeasureSpec(height * heightPercent / 100, MeasureSpec.AT
_MOST); |
| 65 for (int i = 0; i < getChildCount(); ++i) { |
| 66 final View child = getChildAt(i); |
| 67 if (child.getVisibility() != GONE) { |
| 68 child.measure(childWidthMeasureSpec, childHeightMeasureSpec); |
| 69 } |
| 70 } |
| 71 } |
| 72 |
| 73 @Override |
| 74 protected void onLayout(boolean changed, int left, int top, int right, int bot
tom) { |
| 75 final int width = right - left; |
| 76 final int height = bottom - top; |
| 77 // Sub-rectangle specified by percentage values. |
| 78 final int subWidth = width * widthPercent / 100; |
| 79 final int subHeight = height * heightPercent / 100; |
| 80 final int subLeft = left + width * xPercent / 100; |
| 81 final int subTop = top + height * yPercent / 100; |
| 82 |
| 83 for (int i = 0; i < getChildCount(); ++i) { |
| 84 final View child = getChildAt(i); |
| 85 if (child.getVisibility() != GONE) { |
| 86 final int childWidth = child.getMeasuredWidth(); |
| 87 final int childHeight = child.getMeasuredHeight(); |
| 88 // Center child both vertically and horizontally. |
| 89 final int childLeft = subLeft + (subWidth - childWidth) / 2; |
| 90 final int childTop = subTop + (subHeight - childHeight) / 2; |
| 91 child.layout(childLeft, childTop, childLeft + childWidth, childTop + chi
ldHeight); |
| 92 } |
| 93 } |
| 94 } |
| 95 } |
OLD | NEW |