1/*
2 * Copyright (C) 2009 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 com.android.camera.gallery;
18
19import com.android.camera.BitmapManager;
20import com.android.camera.Util;
21
22import android.content.ContentResolver;
23import android.graphics.Bitmap;
24import android.graphics.BitmapFactory;
25import android.net.Uri;
26import android.os.ParcelFileDescriptor;
27import android.util.Log;
28
29import java.io.File;
30import java.io.FileNotFoundException;
31import java.io.InputStream;
32
33class UriImage implements IImage {
34    private static final String TAG = "UriImage";
35    private final Uri mUri;
36    private final IImageList mContainer;
37    private final ContentResolver mContentResolver;
38
39    UriImage(IImageList container, ContentResolver cr, Uri uri) {
40        mContainer = container;
41        mContentResolver = cr;
42        mUri = uri;
43    }
44
45    public int getDegreesRotated() {
46        return 0;
47    }
48
49    public String getDataPath() {
50        return mUri.getPath();
51    }
52
53    private InputStream getInputStream() {
54        try {
55            if (mUri.getScheme().equals("file")) {
56                return new java.io.FileInputStream(mUri.getPath());
57            } else {
58                return mContentResolver.openInputStream(mUri);
59            }
60        } catch (FileNotFoundException ex) {
61            return null;
62        }
63    }
64
65    private ParcelFileDescriptor getPFD() {
66        try {
67            if (mUri.getScheme().equals("file")) {
68                String path = mUri.getPath();
69                return ParcelFileDescriptor.open(new File(path),
70                        ParcelFileDescriptor.MODE_READ_ONLY);
71            } else {
72                return mContentResolver.openFileDescriptor(mUri, "r");
73            }
74        } catch (FileNotFoundException ex) {
75            return null;
76        }
77    }
78
79    public Bitmap fullSizeBitmap(int minSideLength, int maxNumberOfPixels) {
80        return fullSizeBitmap(minSideLength, maxNumberOfPixels,
81                IImage.ROTATE_AS_NEEDED, IImage.NO_NATIVE);
82    }
83
84    public Bitmap fullSizeBitmap(int minSideLength, int maxNumberOfPixels,
85            boolean rotateAsNeeded) {
86        return fullSizeBitmap(minSideLength, maxNumberOfPixels,
87                rotateAsNeeded, IImage.NO_NATIVE);
88    }
89
90    public Bitmap fullSizeBitmap(int minSideLength, int maxNumberOfPixels,
91            boolean rotateAsNeeded, boolean useNative) {
92        try {
93            ParcelFileDescriptor pfdInput = getPFD();
94            Bitmap b = Util.makeBitmap(minSideLength, maxNumberOfPixels,
95                    pfdInput, useNative);
96            return b;
97        } catch (Exception ex) {
98            Log.e(TAG, "got exception decoding bitmap ", ex);
99            return null;
100        }
101    }
102
103    public Uri fullSizeImageUri() {
104        return mUri;
105    }
106
107    public InputStream fullSizeImageData() {
108        return getInputStream();
109    }
110
111    public Bitmap miniThumbBitmap() {
112        return thumbBitmap(IImage.ROTATE_AS_NEEDED);
113    }
114
115    public String getTitle() {
116        return mUri.toString();
117    }
118
119    public Bitmap thumbBitmap(boolean rotateAsNeeded) {
120        return fullSizeBitmap(THUMBNAIL_TARGET_SIZE, THUMBNAIL_MAX_NUM_PIXELS,
121                rotateAsNeeded);
122    }
123
124    private BitmapFactory.Options snifBitmapOptions() {
125        ParcelFileDescriptor input = getPFD();
126        if (input == null) return null;
127        try {
128            BitmapFactory.Options options = new BitmapFactory.Options();
129            options.inJustDecodeBounds = true;
130            BitmapManager.instance().decodeFileDescriptor(
131                    input.getFileDescriptor(), options);
132            return options;
133        } finally {
134            Util.closeSilently(input);
135        }
136    }
137
138    public String getMimeType() {
139        BitmapFactory.Options options = snifBitmapOptions();
140        return (options != null && options.outMimeType != null)
141                ? options.outMimeType
142                : "";
143    }
144
145    public int getHeight() {
146        BitmapFactory.Options options = snifBitmapOptions();
147        return (options != null) ? options.outHeight : 0;
148    }
149
150    public int getWidth() {
151        BitmapFactory.Options options = snifBitmapOptions();
152        return (options != null) ? options.outWidth : 0;
153    }
154
155    public IImageList getContainer() {
156        return mContainer;
157    }
158
159    public long getDateTaken() {
160        return 0;
161    }
162
163    public boolean isReadonly() {
164        return true;
165    }
166
167    public boolean isDrm() {
168        return false;
169    }
170
171    public boolean rotateImageBy(int degrees) {
172        return false;
173    }
174}
175