1/* 2 * Copyright (C) 2014 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 17package androidx.core.graphics.drawable; 18 19import android.content.res.Resources; 20import android.graphics.Bitmap; 21import android.graphics.BitmapFactory; 22import android.graphics.Rect; 23import android.os.Build; 24import android.util.Log; 25 26import androidx.annotation.NonNull; 27import androidx.annotation.Nullable; 28import androidx.core.graphics.BitmapCompat; 29import androidx.core.view.GravityCompat; 30import androidx.core.view.ViewCompat; 31 32import java.io.InputStream; 33 34/** 35 * Constructs {@link RoundedBitmapDrawable RoundedBitmapDrawable} objects, 36 * either from Bitmaps directly, or from streams and files. 37 */ 38public final class RoundedBitmapDrawableFactory { 39 private static final String TAG = "RoundedBitmapDrawableFa"; 40 41 private static class DefaultRoundedBitmapDrawable extends RoundedBitmapDrawable { 42 DefaultRoundedBitmapDrawable(Resources res, Bitmap bitmap) { 43 super(res, bitmap); 44 } 45 46 @Override 47 public void setMipMap(boolean mipMap) { 48 if (mBitmap != null) { 49 BitmapCompat.setHasMipMap(mBitmap, mipMap); 50 invalidateSelf(); 51 } 52 } 53 54 @Override 55 public boolean hasMipMap() { 56 return mBitmap != null && BitmapCompat.hasMipMap(mBitmap); 57 } 58 59 @Override 60 void gravityCompatApply(int gravity, int bitmapWidth, int bitmapHeight, 61 Rect bounds, Rect outRect) { 62 GravityCompat.apply(gravity, bitmapWidth, bitmapHeight, 63 bounds, outRect, ViewCompat.LAYOUT_DIRECTION_LTR); 64 } 65 } 66 67 /** 68 * Returns a new drawable by creating it from a bitmap, setting initial target density based on 69 * the display metrics of the resources. 70 */ 71 @NonNull 72 public static RoundedBitmapDrawable create(@NonNull Resources res, @Nullable Bitmap bitmap) { 73 if (Build.VERSION.SDK_INT >= 21) { 74 return new RoundedBitmapDrawable21(res, bitmap); 75 } 76 return new DefaultRoundedBitmapDrawable(res, bitmap); 77 } 78 79 /** 80 * Returns a new drawable, creating it by opening a given file path and decoding the bitmap. 81 */ 82 @NonNull 83 public static RoundedBitmapDrawable create(@NonNull Resources res, @NonNull String filepath) { 84 final RoundedBitmapDrawable drawable = create(res, BitmapFactory.decodeFile(filepath)); 85 if (drawable.getBitmap() == null) { 86 Log.w(TAG, "RoundedBitmapDrawable cannot decode " + filepath); 87 } 88 return drawable; 89 } 90 91 92 /** 93 * Returns a new drawable, creating it by decoding a bitmap from the given input stream. 94 */ 95 @NonNull 96 public static RoundedBitmapDrawable create(@NonNull Resources res, @NonNull InputStream is) { 97 final RoundedBitmapDrawable drawable = create(res, BitmapFactory.decodeStream(is)); 98 if (drawable.getBitmap() == null) { 99 Log.w(TAG, "RoundedBitmapDrawable cannot decode " + is); 100 } 101 return drawable; 102 } 103 104 private RoundedBitmapDrawableFactory() {} 105 106} 107