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      1 /*
      2  * Copyright (C) 2015 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 package com.android.messaging.datamodel.media;
     17 
     18 import android.content.Context;
     19 import android.content.res.Resources;
     20 import android.graphics.Bitmap;
     21 import android.graphics.Canvas;
     22 import android.graphics.Color;
     23 import android.graphics.Paint;
     24 import android.graphics.PorterDuff;
     25 import android.graphics.PorterDuffColorFilter;
     26 import android.graphics.Rect;
     27 import android.graphics.Typeface;
     28 import android.graphics.drawable.BitmapDrawable;
     29 import android.media.ExifInterface;
     30 import android.text.TextUtils;
     31 
     32 import com.android.messaging.R;
     33 import com.android.messaging.util.Assert;
     34 import com.android.messaging.util.AvatarUriUtil;
     35 
     36 import java.io.IOException;
     37 import java.util.List;
     38 
     39 public class SimSelectorAvatarRequest extends AvatarRequest {
     40     private static Bitmap sRegularSimIcon;
     41 
     42     public SimSelectorAvatarRequest(final Context context,
     43             final AvatarRequestDescriptor descriptor) {
     44         super(context, descriptor);
     45     }
     46 
     47     /**
     48      * {@inheritDoc}
     49      */
     50     @Override
     51     protected ImageResource loadMediaInternal(List<MediaRequest<ImageResource>> chainedTasks)
     52             throws IOException {
     53         Assert.isNotMainThread();
     54         final String avatarType = AvatarUriUtil.getAvatarType(mDescriptor.uri);
     55         if (AvatarUriUtil.TYPE_SIM_SELECTOR_URI.equals(avatarType)){
     56             final int width = mDescriptor.desiredWidth;
     57             final int height = mDescriptor.desiredHeight;
     58             final String identifier = AvatarUriUtil.getIdentifier(mDescriptor.uri);
     59             final boolean simSelected = AvatarUriUtil.getSimSelected(mDescriptor.uri);
     60             final int simColor = AvatarUriUtil.getSimColor(mDescriptor.uri);
     61             final boolean incoming = AvatarUriUtil.getSimIncoming(mDescriptor.uri);
     62             return renderSimAvatarInternal(identifier, width, height, simColor, simSelected,
     63                     incoming);
     64         }
     65         return super.loadMediaInternal(chainedTasks);
     66     }
     67 
     68     private ImageResource renderSimAvatarInternal(final String identifier, final int width,
     69             final int height, final int subColor, final boolean selected, final boolean incoming) {
     70         final Resources resources = mContext.getResources();
     71         final float halfWidth = width / 2;
     72         final float halfHeight = height / 2;
     73         final int minOfWidthAndHeight = Math.min(width, height);
     74         final int backgroundColor = selected ? subColor : Color.WHITE;
     75         final int textColor = selected ? subColor : Color.WHITE;
     76         final int simColor = selected ? Color.WHITE : subColor;
     77         final Bitmap bitmap = getBitmapPool().createOrReuseBitmap(width, height, backgroundColor);
     78         final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
     79         final Canvas canvas = new Canvas(bitmap);
     80 
     81         if (sRegularSimIcon == null) {
     82             final BitmapDrawable regularSim = (BitmapDrawable) mContext.getResources()
     83                     .getDrawable(R.drawable.ic_sim_card_send);
     84             sRegularSimIcon = regularSim.getBitmap();
     85         }
     86 
     87         paint.setColorFilter(new PorterDuffColorFilter(simColor, PorterDuff.Mode.SRC_ATOP));
     88         paint.setAlpha(0xff);
     89         canvas.drawBitmap(sRegularSimIcon, halfWidth - sRegularSimIcon.getWidth() / 2,
     90                 halfHeight - sRegularSimIcon.getHeight() / 2, paint);
     91         paint.setColorFilter(null);
     92         paint.setAlpha(0xff);
     93 
     94         if (!TextUtils.isEmpty(identifier)) {
     95             paint.setTypeface(Typeface.create("sans-serif", Typeface.NORMAL));
     96             paint.setColor(textColor);
     97             final float letterToTileRatio =
     98                     resources.getFraction(R.dimen.sim_identifier_to_tile_ratio, 1, 1);
     99             paint.setTextSize(letterToTileRatio * minOfWidthAndHeight);
    100 
    101             final String firstCharString = identifier.substring(0, 1).toUpperCase();
    102             final Rect textBound = new Rect();
    103             paint.getTextBounds(firstCharString, 0, 1, textBound);
    104 
    105             final float xOffset = halfWidth - textBound.centerX();
    106             final float yOffset = halfHeight - textBound.centerY();
    107             canvas.drawText(firstCharString, xOffset, yOffset, paint);
    108         }
    109 
    110         return new DecodedImageResource(getKey(), bitmap, ExifInterface.ORIENTATION_NORMAL);
    111     }
    112 
    113     @Override
    114     public int getCacheId() {
    115         return BugleMediaCacheManager.AVATAR_IMAGE_CACHE;
    116     }
    117 }
    118