1 /* 2 * Copyright (C) 2008 Esmertec AG. 3 * Copyright (C) 2008 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.mms.layout; 19 20 import android.content.Context; 21 import android.content.res.Configuration; 22 import android.util.Log; 23 24 /** 25 * MMS presentation layout management. 26 */ 27 public class LayoutManager { 28 private static final String TAG = "LayoutManager"; 29 private static final boolean DEBUG = false; 30 private static final boolean LOCAL_LOGV = false; 31 32 private final Context mContext; 33 private LayoutParameters mLayoutParams; 34 35 private static LayoutManager sInstance; 36 37 private LayoutManager(Context context) { 38 mContext = context; 39 initLayoutParameters(context.getResources().getConfiguration()); 40 } 41 42 private void initLayoutParameters(Configuration configuration) { 43 mLayoutParams = getLayoutParameters( 44 configuration.orientation == Configuration.ORIENTATION_PORTRAIT 45 ? LayoutParameters.HVGA_PORTRAIT 46 : LayoutParameters.HVGA_LANDSCAPE); 47 48 if (LOCAL_LOGV) { 49 Log.v(TAG, "LayoutParameters: " + mLayoutParams.getTypeDescription() 50 + ": " + mLayoutParams.getWidth() + "x" + mLayoutParams.getHeight()); 51 } 52 } 53 54 private LayoutParameters getLayoutParameters(int displayType) { 55 switch (displayType) { 56 case LayoutParameters.HVGA_LANDSCAPE: 57 return new HVGALayoutParameters(mContext, LayoutParameters.HVGA_LANDSCAPE); 58 case LayoutParameters.HVGA_PORTRAIT: 59 return new HVGALayoutParameters(mContext, LayoutParameters.HVGA_PORTRAIT); 60 } 61 62 throw new IllegalArgumentException( 63 "Unsupported display type: " + displayType); 64 } 65 66 public static void init(Context context) { 67 if (LOCAL_LOGV) { 68 Log.v(TAG, "DefaultLayoutManager.init()"); 69 } 70 71 if (sInstance != null) { 72 Log.w(TAG, "Already initialized."); 73 } 74 sInstance = new LayoutManager(context); 75 } 76 77 public static LayoutManager getInstance() { 78 if (sInstance == null) { 79 throw new IllegalStateException("Uninitialized."); 80 } 81 return sInstance; 82 } 83 84 public void onConfigurationChanged(Configuration newConfig) { 85 if (LOCAL_LOGV) { 86 Log.v(TAG, "-> LayoutManager.onConfigurationChanged()."); 87 } 88 initLayoutParameters(newConfig); 89 } 90 91 public int getLayoutType() { 92 return mLayoutParams.getType(); 93 } 94 95 public int getLayoutWidth() { 96 return mLayoutParams.getWidth(); 97 } 98 99 public int getLayoutHeight() { 100 return mLayoutParams.getHeight(); 101 } 102 103 public LayoutParameters getLayoutParameters() { 104 return mLayoutParams; 105 } 106 } 107
