1package eu.siacs.conversations.services;
2
3import java.util.ArrayList;
4import java.util.List;
5import java.util.Locale;
6
7import eu.siacs.conversations.entities.Account;
8import eu.siacs.conversations.entities.Bookmark;
9import eu.siacs.conversations.entities.Contact;
10import eu.siacs.conversations.entities.Conversation;
11import eu.siacs.conversations.entities.ListItem;
12import eu.siacs.conversations.entities.MucOptions;
13import android.graphics.Bitmap;
14import android.graphics.Canvas;
15import android.graphics.Paint;
16import android.graphics.Rect;
17import android.graphics.Typeface;
18import android.net.Uri;
19
20public class AvatarService {
21
22 private static final int FG_COLOR = 0xFFFAFAFA;
23 private static final int TRANSPARENT = 0x00000000;
24
25 private static final String PREFIX_CONTACT = "contact";
26 private static final String PREFIX_CONVERSATION = "conversation";
27 private static final String PREFIX_ACCOUNT = "account";
28 private static final String PREFIX_GENERIC = "generic";
29
30 private ArrayList<Integer> sizes = new ArrayList<Integer>();
31
32 protected XmppConnectionService mXmppConnectionService = null;
33
34 public AvatarService(XmppConnectionService service) {
35 this.mXmppConnectionService = service;
36 }
37
38 public Bitmap get(Contact contact, int size) {
39 final String KEY = key(contact, size);
40 Bitmap avatar = this.mXmppConnectionService.getBitmapCache().get(KEY);
41 if (avatar != null) {
42 return avatar;
43 }
44 avatar = mXmppConnectionService.getFileBackend().getAvatar(
45 contact.getAvatar(), size);
46 if (avatar == null) {
47 if (contact.getProfilePhoto() != null) {
48 avatar = mXmppConnectionService.getFileBackend()
49 .cropCenterSquare(Uri.parse(contact.getProfilePhoto()),
50 size);
51 if (avatar == null) {
52 avatar = get(contact.getDisplayName(), size);
53 }
54 } else {
55 avatar = get(contact.getDisplayName(), size);
56 }
57 }
58 this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
59 return avatar;
60 }
61
62 public void clear(Contact contact) {
63 for (Integer size : sizes) {
64 this.mXmppConnectionService.getBitmapCache().remove(
65 key(contact, size));
66 }
67 }
68
69 private String key(Contact contact, int size) {
70 synchronized (this.sizes) {
71 if (!this.sizes.contains(size)) {
72 this.sizes.add(size);
73 }
74 }
75 return PREFIX_CONTACT + "_" + contact.getAccount().getJid() + "_"
76 + contact.getJid() + "_" + String.valueOf(size);
77 }
78
79 public Bitmap get(ListItem item, int size) {
80 if (item instanceof Contact) {
81 return get((Contact) item, size);
82 } else if (item instanceof Bookmark) {
83 Bookmark bookmark = (Bookmark) item;
84 if (bookmark.getConversation() != null) {
85 return get(bookmark.getConversation(), size);
86 } else {
87 return get(bookmark.getDisplayName(), size);
88 }
89 } else {
90 return get(item.getDisplayName(), size);
91 }
92 }
93
94 public Bitmap get(Conversation conversation, int size) {
95 if (conversation.getMode() == Conversation.MODE_SINGLE) {
96 return get(conversation.getContact(), size);
97 } else {
98 return get(conversation.getMucOptions(), size);
99 }
100 }
101
102 public void clear(Conversation conversation) {
103 if (conversation.getMode() == Conversation.MODE_SINGLE) {
104 clear(conversation.getContact());
105 } else {
106 clear(conversation.getMucOptions());
107 }
108 }
109
110 public Bitmap get(MucOptions mucOptions, int size) {
111 final String KEY = key(mucOptions, size);
112 Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
113 if (bitmap != null) {
114 return bitmap;
115 }
116 List<MucOptions.User> users = mucOptions.getUsers();
117 int count = users.size();
118 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
119 Canvas canvas = new Canvas(bitmap);
120 bitmap.eraseColor(TRANSPARENT);
121
122 if (count == 0) {
123 String name = mucOptions.getConversation().getName();
124 String letter = name.substring(0, 1);
125 int color = this.getColorForName(name);
126 drawTile(canvas, letter, color, 0, 0, size, size);
127 } else if (count == 1) {
128 drawTile(canvas, users.get(0), 0, 0, size, size);
129 } else if (count == 2) {
130 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
131 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
132 } else if (count == 3) {
133 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
134 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
135 drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
136 size);
137 } else if (count == 4) {
138 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
139 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
140 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
141 drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
142 size);
143 } else {
144 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
145 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
146 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
147 drawTile(canvas, "\u2026", 0xFF202020, size / 2 + 1, size / 2 + 1,
148 size, size);
149 }
150 this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
151 return bitmap;
152 }
153
154 public void clear(MucOptions options) {
155 for (Integer size : sizes) {
156 this.mXmppConnectionService.getBitmapCache().remove(
157 key(options, size));
158 }
159 }
160
161 private String key(MucOptions options, int size) {
162 synchronized (this.sizes) {
163 if (!this.sizes.contains(size)) {
164 this.sizes.add(size);
165 }
166 }
167 return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
168 + "_" + String.valueOf(size);
169 }
170
171 public Bitmap get(Account account, int size) {
172 final String KEY = key(account, size);
173 Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
174 if (avatar != null) {
175 return avatar;
176 }
177 avatar = mXmppConnectionService.getFileBackend().getAvatar(
178 account.getAvatar(), size);
179 if (avatar == null) {
180 avatar = get(account.getJid(), size);
181 }
182 mXmppConnectionService.getBitmapCache().put(KEY, avatar);
183 return avatar;
184 }
185
186 public void clear(Account account) {
187 for (Integer size : sizes) {
188 this.mXmppConnectionService.getBitmapCache().remove(
189 key(account, size));
190 }
191 }
192
193 private String key(Account account, int size) {
194 synchronized (this.sizes) {
195 if (!this.sizes.contains(size)) {
196 this.sizes.add(size);
197 }
198 }
199 return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
200 + String.valueOf(size);
201 }
202
203 public Bitmap get(String name, int size) {
204 final String KEY = key(name, size);
205 Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
206 if (bitmap != null) {
207 return bitmap;
208 }
209 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
210 Canvas canvas = new Canvas(bitmap);
211 String letter = name.substring(0, 1);
212 int color = this.getColorForName(name);
213 drawTile(canvas, letter, color, 0, 0, size, size);
214 mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
215 return bitmap;
216 }
217
218 private String key(String name, int size) {
219 synchronized (this.sizes) {
220 if (!this.sizes.contains(size)) {
221 this.sizes.add(size);
222 }
223 }
224 return PREFIX_GENERIC + "_" + name + "_" + String.valueOf(size);
225 }
226
227 private void drawTile(Canvas canvas, String letter, int tileColor,
228 int left, int top, int right, int bottom) {
229 letter = letter.toUpperCase(Locale.getDefault());
230 Paint tilePaint = new Paint(), textPaint = new Paint();
231 tilePaint.setColor(tileColor);
232 textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
233 textPaint.setColor(FG_COLOR);
234 textPaint.setTypeface(Typeface.create("sans-serif-light",
235 Typeface.NORMAL));
236 textPaint.setTextSize((float) ((right - left) * 0.8));
237 Rect rect = new Rect();
238
239 canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
240 textPaint.getTextBounds(letter, 0, 1, rect);
241 float width = textPaint.measureText(letter);
242 canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
243 / 2 + rect.height() / 2, textPaint);
244 }
245
246 private void drawTile(Canvas canvas, MucOptions.User user, int left,
247 int top, int right, int bottom) {
248 Contact contact = user.getContact();
249 if (contact != null) {
250 Uri uri = null;
251 if (contact.getAvatar() != null) {
252 uri = mXmppConnectionService.getFileBackend().getAvatarUri(
253 contact.getAvatar());
254 } else if (contact.getProfilePhoto() != null) {
255 uri = Uri.parse(contact.getProfilePhoto());
256 }
257 if (uri != null) {
258 Bitmap bitmap = mXmppConnectionService.getFileBackend()
259 .cropCenter(uri, bottom - top, right - left);
260 if (bitmap != null) {
261 drawTile(canvas, bitmap, left, top, right, bottom);
262 } else {
263 String letter = user.getName().substring(0, 1);
264 int color = this.getColorForName(user.getName());
265 drawTile(canvas, letter, color, left, top, right, bottom);
266 }
267 } else {
268 String letter = user.getName().substring(0, 1);
269 int color = this.getColorForName(user.getName());
270 drawTile(canvas, letter, color, left, top, right, bottom);
271 }
272 } else {
273 String letter = user.getName().substring(0, 1);
274 int color = this.getColorForName(user.getName());
275 drawTile(canvas, letter, color, left, top, right, bottom);
276 }
277 }
278
279 private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
280 int dstright, int dstbottom) {
281 Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
282 canvas.drawBitmap(bm, null, dst, null);
283 }
284
285 private int getColorForName(String name) {
286 int holoColors[] = { 0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
287 0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
288 0xFF795548, 0xFF607d8b };
289 return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
290 }
291
292}