1/*
2 * Copyright (C) 2006 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 android.text.style;
18
19import android.annotation.DrawableRes;
20import android.content.Context;
21import android.graphics.Bitmap;
22import android.graphics.BitmapFactory;
23import android.graphics.drawable.BitmapDrawable;
24import android.graphics.drawable.Drawable;
25import android.net.Uri;
26import android.util.Log;
27
28import java.io.InputStream;
29
30public class ImageSpan extends DynamicDrawableSpan {
31    private Drawable mDrawable;
32    private Uri mContentUri;
33    private int mResourceId;
34    private Context mContext;
35    private String mSource;
36
37    /**
38     * @deprecated Use {@link #ImageSpan(Context, Bitmap)} instead.
39     */
40    @Deprecated
41    public ImageSpan(Bitmap b) {
42        this(null, b, ALIGN_BOTTOM);
43    }
44
45    /**
46     * @deprecated Use {@link #ImageSpan(Context, Bitmap, int)} instead.
47     */
48    @Deprecated
49    public ImageSpan(Bitmap b, int verticalAlignment) {
50        this(null, b, verticalAlignment);
51    }
52
53    public ImageSpan(Context context, Bitmap b) {
54        this(context, b, ALIGN_BOTTOM);
55    }
56
57    /**
58     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
59     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
60     */
61    public ImageSpan(Context context, Bitmap b, int verticalAlignment) {
62        super(verticalAlignment);
63        mContext = context;
64        mDrawable = context != null
65                ? new BitmapDrawable(context.getResources(), b)
66                : new BitmapDrawable(b);
67        int width = mDrawable.getIntrinsicWidth();
68        int height = mDrawable.getIntrinsicHeight();
69        mDrawable.setBounds(0, 0, width > 0 ? width : 0, height > 0 ? height : 0);
70    }
71
72    public ImageSpan(Drawable d) {
73        this(d, ALIGN_BOTTOM);
74    }
75
76    /**
77     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
78     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
79     */
80    public ImageSpan(Drawable d, int verticalAlignment) {
81        super(verticalAlignment);
82        mDrawable = d;
83    }
84
85    public ImageSpan(Drawable d, String source) {
86        this(d, source, ALIGN_BOTTOM);
87    }
88
89    /**
90     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
91     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
92     */
93    public ImageSpan(Drawable d, String source, int verticalAlignment) {
94        super(verticalAlignment);
95        mDrawable = d;
96        mSource = source;
97    }
98
99    public ImageSpan(Context context, Uri uri) {
100        this(context, uri, ALIGN_BOTTOM);
101    }
102
103    /**
104     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
105     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
106     */
107    public ImageSpan(Context context, Uri uri, int verticalAlignment) {
108        super(verticalAlignment);
109        mContext = context;
110        mContentUri = uri;
111        mSource = uri.toString();
112    }
113
114    public ImageSpan(Context context, @DrawableRes int resourceId) {
115        this(context, resourceId, ALIGN_BOTTOM);
116    }
117
118    /**
119     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
120     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
121     */
122    public ImageSpan(Context context, @DrawableRes int resourceId, int verticalAlignment) {
123        super(verticalAlignment);
124        mContext = context;
125        mResourceId = resourceId;
126    }
127
128    @Override
129    public Drawable getDrawable() {
130        Drawable drawable = null;
131
132        if (mDrawable != null) {
133            drawable = mDrawable;
134        } else  if (mContentUri != null) {
135            Bitmap bitmap = null;
136            try {
137                InputStream is = mContext.getContentResolver().openInputStream(
138                        mContentUri);
139                bitmap = BitmapFactory.decodeStream(is);
140                drawable = new BitmapDrawable(mContext.getResources(), bitmap);
141                drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
142                        drawable.getIntrinsicHeight());
143                is.close();
144            } catch (Exception e) {
145                Log.e("sms", "Failed to loaded content " + mContentUri, e);
146            }
147        } else {
148            try {
149                drawable = mContext.getDrawable(mResourceId);
150                drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
151                        drawable.getIntrinsicHeight());
152            } catch (Exception e) {
153                Log.e("sms", "Unable to find resource: " + mResourceId);
154            }
155        }
156
157        return drawable;
158    }
159
160    /**
161     * Returns the source string that was saved during construction.
162     */
163    public String getSource() {
164        return mSource;
165    }
166
167}
168