| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.gallery3d.filtershow; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.util.AttributeSet; |
| import android.util.TypedValue; |
| import android.widget.LinearLayout; |
| |
| import com.android.gallery3d.R; |
| |
| public class CenteredLinearLayout extends LinearLayout { |
| private final int mMaxWidth; |
| |
| public CenteredLinearLayout(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.CenteredLinearLayout); |
| mMaxWidth = a.getDimensionPixelSize(R.styleable.CenteredLinearLayout_max_width, 0); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int parentWidth = MeasureSpec.getSize(widthMeasureSpec); |
| int parentHeight = MeasureSpec.getSize(heightMeasureSpec); |
| Resources r = getContext().getResources(); |
| float value = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, parentWidth, |
| r.getDisplayMetrics()); |
| if (mMaxWidth > 0 && parentWidth > mMaxWidth) { |
| int measureMode = MeasureSpec.getMode(widthMeasureSpec); |
| widthMeasureSpec = MeasureSpec.makeMeasureSpec(mMaxWidth, measureMode); |
| } |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| } |
| |
| } |