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