1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.text.style; 18 19 import android.annotation.DrawableRes; 20 import android.content.Context; 21 import android.graphics.Bitmap; 22 import android.graphics.BitmapFactory; 23 import android.graphics.drawable.BitmapDrawable; 24 import android.graphics.drawable.Drawable; 25 import android.net.Uri; 26 import android.util.Log; 27 28 import java.io.InputStream; 29 30 public class ImageSpan extends DynamicDrawableSpan { 31 private Drawable mDrawable; 32 private Uri mContentUri; 33 private int mResourceId; 34 private Context mContext; 35 private String mSource; 36 37 /** 38 * @deprecated Use {@link #ImageSpan(Context, Bitmap)} instead. 39 */ 40 @Deprecated ImageSpan(Bitmap b)41 public ImageSpan(Bitmap b) { 42 this(null, b, ALIGN_BOTTOM); 43 } 44 45 /** 46 * @deprecated Use {@link #ImageSpan(Context, Bitmap, int) instead. 47 */ 48 @Deprecated ImageSpan(Bitmap b, int verticalAlignment)49 public ImageSpan(Bitmap b, int verticalAlignment) { 50 this(null, b, verticalAlignment); 51 } 52 ImageSpan(Context context, Bitmap b)53 public ImageSpan(Context context, Bitmap b) { 54 this(context, b, ALIGN_BOTTOM); 55 } 56 57 /** 58 * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or 59 * {@link DynamicDrawableSpan#ALIGN_BASELINE}. 60 */ ImageSpan(Context context, Bitmap b, int verticalAlignment)61 public ImageSpan(Context context, Bitmap b, int verticalAlignment) { 62 super(verticalAlignment); 63 mContext = context; 64 mDrawable = context != null 65 ? new BitmapDrawable(context.getResources(), b) 66 : new BitmapDrawable(b); 67 int width = mDrawable.getIntrinsicWidth(); 68 int height = mDrawable.getIntrinsicHeight(); 69 mDrawable.setBounds(0, 0, width > 0 ? width : 0, height > 0 ? height : 0); 70 } 71 ImageSpan(Drawable d)72 public ImageSpan(Drawable d) { 73 this(d, ALIGN_BOTTOM); 74 } 75 76 /** 77 * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or 78 * {@link DynamicDrawableSpan#ALIGN_BASELINE}. 79 */ ImageSpan(Drawable d, int verticalAlignment)80 public ImageSpan(Drawable d, int verticalAlignment) { 81 super(verticalAlignment); 82 mDrawable = d; 83 } 84 ImageSpan(Drawable d, String source)85 public ImageSpan(Drawable d, String source) { 86 this(d, source, ALIGN_BOTTOM); 87 } 88 89 /** 90 * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or 91 * {@link DynamicDrawableSpan#ALIGN_BASELINE}. 92 */ ImageSpan(Drawable d, String source, int verticalAlignment)93 public ImageSpan(Drawable d, String source, int verticalAlignment) { 94 super(verticalAlignment); 95 mDrawable = d; 96 mSource = source; 97 } 98 ImageSpan(Context context, Uri uri)99 public ImageSpan(Context context, Uri uri) { 100 this(context, uri, ALIGN_BOTTOM); 101 } 102 103 /** 104 * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or 105 * {@link DynamicDrawableSpan#ALIGN_BASELINE}. 106 */ ImageSpan(Context context, Uri uri, int verticalAlignment)107 public ImageSpan(Context context, Uri uri, int verticalAlignment) { 108 super(verticalAlignment); 109 mContext = context; 110 mContentUri = uri; 111 mSource = uri.toString(); 112 } 113 ImageSpan(Context context, @DrawableRes int resourceId)114 public ImageSpan(Context context, @DrawableRes int resourceId) { 115 this(context, resourceId, ALIGN_BOTTOM); 116 } 117 118 /** 119 * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or 120 * {@link DynamicDrawableSpan#ALIGN_BASELINE}. 121 */ ImageSpan(Context context, @DrawableRes int resourceId, int verticalAlignment)122 public ImageSpan(Context context, @DrawableRes int resourceId, int verticalAlignment) { 123 super(verticalAlignment); 124 mContext = context; 125 mResourceId = resourceId; 126 } 127 128 @Override getDrawable()129 public Drawable getDrawable() { 130 Drawable drawable = null; 131 132 if (mDrawable != null) { 133 drawable = mDrawable; 134 } else if (mContentUri != null) { 135 Bitmap bitmap = null; 136 try { 137 InputStream is = mContext.getContentResolver().openInputStream( 138 mContentUri); 139 bitmap = BitmapFactory.decodeStream(is); 140 drawable = new BitmapDrawable(mContext.getResources(), bitmap); 141 drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), 142 drawable.getIntrinsicHeight()); 143 is.close(); 144 } catch (Exception e) { 145 Log.e("sms", "Failed to loaded content " + mContentUri, e); 146 } 147 } else { 148 try { 149 drawable = mContext.getDrawable(mResourceId); 150 drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), 151 drawable.getIntrinsicHeight()); 152 } catch (Exception e) { 153 Log.e("sms", "Unable to find resource: " + mResourceId); 154 } 155 } 156 157 return drawable; 158 } 159 160 /** 161 * Returns the source string that was saved during construction. 162 */ getSource()163 public String getSource() { 164 return mSource; 165 } 166 167 } 168