| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.layoutlib.bridge.util; |
| |
| import com.android.tools.layoutlib.annotations.NotNull; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * Simpler wrapper around FileInputStream. This is used when the input stream represent |
| * not a normal bitmap but a nine patch. |
| * This is useful when the InputStream is created in a method but used in another that needs |
| * to know whether this is 9-patch or not, such as BitmapFactory. |
| */ |
| public class NinePatchInputStream extends InputStream { |
| private final InputStream mDelegate; |
| private boolean mFakeMarkSupport = true; |
| private final String mPath; |
| |
| public NinePatchInputStream(File file) throws FileNotFoundException { |
| mDelegate = new FileInputStream(file); |
| mPath = file.getPath(); |
| } |
| |
| public NinePatchInputStream(@NotNull InputStream stream, @NotNull String path) { |
| mDelegate = stream; |
| mPath = path; |
| } |
| |
| @NotNull |
| public String getPath() { |
| return mPath; |
| } |
| |
| @Override |
| public boolean markSupported() { |
| // this is needed so that BitmapFactory doesn't wrap this in a BufferedInputStream. |
| return mFakeMarkSupport || mDelegate.markSupported(); |
| } |
| |
| public void disableFakeMarkSupport() { |
| // disable fake mark support so that in case codec actually try to use them |
| // we don't lie to them. |
| mFakeMarkSupport = false; |
| } |
| |
| @Override |
| public int read() throws IOException { |
| return mDelegate.read(); |
| } |
| |
| @Override |
| public int read(byte[] b) throws IOException { |
| return mDelegate.read(b); |
| } |
| |
| @Override |
| public int read(byte[] b, int off, int len) throws IOException { |
| return mDelegate.read(b, off, len); |
| } |
| |
| @Override |
| public long skip(long n) throws IOException { |
| return mDelegate.skip(n); |
| } |
| |
| @Override |
| public int available() throws IOException { |
| return mDelegate.available(); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| mDelegate.close(); |
| } |
| |
| @Override |
| public void mark(int readlimit) { |
| mDelegate.mark(readlimit); |
| } |
| |
| @Override |
| public void reset() throws IOException { |
| mDelegate.reset(); |
| } |
| } |