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.res.Resources; 19 import android.graphics.Bitmap; 20 import android.graphics.drawable.Drawable; 21 22 /** 23 * Base class for holding some form of image resource. The subclass gets to define the specific 24 * type of data format it's holding, whether it be Bitmap objects or compressed byte arrays. 25 */ 26 public abstract class ImageResource extends RefCountedMediaResource { 27 protected final int mOrientation; 28 ImageResource(final String key, int orientation)29 public ImageResource(final String key, int orientation) { 30 super(key); 31 mOrientation = orientation; 32 } 33 34 /** 35 * Gets the contained image in drawable format. 36 */ getDrawable(Resources resources)37 public abstract Drawable getDrawable(Resources resources); 38 39 /** 40 * Gets the contained image in bitmap format. 41 */ getBitmap()42 public abstract Bitmap getBitmap(); 43 44 /** 45 * Gets the contained image in byte array format. 46 */ getBytes()47 public abstract byte[] getBytes(); 48 49 /** 50 * Attempt to reuse the bitmap in the image resource and re-purpose it for something else. 51 * After this, the image resource will relinquish ownership on the bitmap resource so that 52 * it doesn't try to recycle it when getting closed. 53 */ reuseBitmap()54 public abstract Bitmap reuseBitmap(); supportsBitmapReuse()55 public abstract boolean supportsBitmapReuse(); 56 57 /** 58 * Gets the orientation of the image as one of the ExifInterface.ORIENTATION_* constants 59 */ getOrientation()60 public int getOrientation() { 61 return mOrientation; 62 } 63 } 64