content: /*
   * Copyright 2014 Jacob Klinker
   *
   * 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.mms.layout;
  
  import com.android.mms.logs.LogTag;
  
  import android.content.Context;
  import android.content.res.Configuration;
  import com.klinker.android.logger.Log;
  
  /**
   * MMS presentation layout management.
   */
  public class LayoutManager {
      private static final String TAG = LogTag.TAG;
      private static final boolean DEBUG = false;
      private static final boolean LOCAL_LOGV = false;
  
      private final Context mContext;
      private LayoutParameters mLayoutParams;
  
      private static LayoutManager sInstance;
  
      private LayoutManager(Context context) {
          mContext = context;
          initLayoutParameters(context.getResources().getConfiguration());
      }
  
      private void initLayoutParameters(Configuration configuration) {
          mLayoutParams = getLayoutParameters(
                  configuration.orientation == Configuration.ORIENTATION_PORTRAIT
                  ? LayoutParameters.HVGA_PORTRAIT
                  : LayoutParameters.HVGA_LANDSCAPE);
  
          if (LOCAL_LOGV) {
              Log.v(TAG, "LayoutParameters: " + mLayoutParams.getTypeDescription()
                      + ": " + mLayoutParams.getWidth() + "x" + mLayoutParams.getHeight());
          }
      }
  
      private LayoutParameters getLayoutParameters(int displayType) {
          switch (displayType) {
              case LayoutParameters.HVGA_LANDSCAPE:
                  return new HVGALayoutParameters(mContext, LayoutParameters.HVGA_LANDSCAPE);
              case LayoutParameters.HVGA_PORTRAIT:
                  return new HVGALayoutParameters(mContext, LayoutParameters.HVGA_PORTRAIT);
          }
  
          throw new IllegalArgumentException(
                  "Unsupported display type: " + displayType);
      }
  
      public static void init(Context context) {
          if (LOCAL_LOGV) {
              Log.v(TAG, "DefaultLayoutManager.init()");
          }
  
          if (sInstance != null) {
              Log.w(TAG, "Already initialized.");
          }
          sInstance = new LayoutManager(context);
      }
  
      public static LayoutManager getInstance() {
          if (sInstance == null) {
              throw new IllegalStateException("Uninitialized.");
          }
          return sInstance;
      }
  
      public void onConfigurationChanged(Configuration newConfig) {
          if (LOCAL_LOGV) {
              Log.v(TAG, "-> LayoutManager.onConfigurationChanged().");
          }
          initLayoutParameters(newConfig);
      }
  
      public int getLayoutType() {
          return mLayoutParams.getType();
      }
  
      public int getLayoutWidth() {
          return mLayoutParams.getWidth();
      }
  
      public int getLayoutHeight() {
          return mLayoutParams.getHeight();
      }
  
      public LayoutParameters getLayoutParameters() {
          return mLayoutParams;
      }
  }
  