content: /*
   * Copyright (C) 2014 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.internal.widget;
  
  import android.annotation.UnsupportedAppUsage;
  import android.content.Context;
  import android.util.AttributeSet;
  import android.widget.ImageView;
  
  /**
   * Extension of ImageView that correctly applies maxWidth and maxHeight.
   */
  public class PreferenceImageView extends ImageView {
  
      public PreferenceImageView(Context context) {
          this(context, null);
      }
  
      @UnsupportedAppUsage
      public PreferenceImageView(Context context, AttributeSet attrs) {
          this(context, attrs, 0);
      }
  
      public PreferenceImageView(Context context, AttributeSet attrs, int defStyleAttr) {
          this(context, attrs, defStyleAttr, 0);
      }
  
      public PreferenceImageView(Context context, AttributeSet attrs, int defStyleAttr,
              int defStyleRes) {
          super(context, attrs, defStyleAttr, defStyleRes);
      }
  
      @Override
      protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
          final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
          if (widthMode == MeasureSpec.AT_MOST || widthMode == MeasureSpec.UNSPECIFIED) {
              final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
              final int maxWidth = getMaxWidth();
              if (maxWidth != Integer.MAX_VALUE
                      && (maxWidth < widthSize || widthMode == MeasureSpec.UNSPECIFIED)) {
                  widthMeasureSpec = MeasureSpec.makeMeasureSpec(maxWidth, MeasureSpec.AT_MOST);
              }
          }
  
          final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
          if (heightMode == MeasureSpec.AT_MOST || heightMode == MeasureSpec.UNSPECIFIED) {
              final int heightSize = MeasureSpec.getSize(heightMeasureSpec);
              final int maxHeight = getMaxHeight();
              if (maxHeight != Integer.MAX_VALUE
                      && (maxHeight < heightSize || heightMode == MeasureSpec.UNSPECIFIED)) {
                  heightMeasureSpec = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.AT_MOST);
              }
          }
  
          super.onMeasure(widthMeasureSpec, heightMeasureSpec);
      }
  }
  