1package eu.siacs.conversations.services;
2
3import java.util.List;
4import java.util.Locale;
5
6import eu.siacs.conversations.entities.Account;
7import eu.siacs.conversations.entities.Bookmark;
8import eu.siacs.conversations.entities.Contact;
9import eu.siacs.conversations.entities.Conversation;
10import eu.siacs.conversations.entities.ListItem;
11import eu.siacs.conversations.entities.MucOptions;
12import android.graphics.Bitmap;
13import android.graphics.Canvas;
14import android.graphics.Paint;
15import android.graphics.Rect;
16import android.graphics.Typeface;
17import android.net.Uri;
18
19public class AvatarService {
20
21 private static final int FG_COLOR = 0xFFFAFAFA;
22 private static final int TRANSPARENT = 0x00000000;
23
24 protected XmppConnectionService mXmppConnectionService = null;
25
26 public AvatarService(XmppConnectionService service) {
27 this.mXmppConnectionService = service;
28 }
29
30 public Bitmap getAvatar(Contact contact, int size) {
31 Bitmap avatar = mXmppConnectionService.getFileBackend().getAvatar(
32 contact.getAvatar(), size);
33 if (avatar == null) {
34 if (contact.getProfilePhoto() != null) {
35 avatar = mXmppConnectionService.getFileBackend()
36 .cropCenterSquare(Uri.parse(contact.getProfilePhoto()),
37 size);
38 if (avatar == null) {
39 avatar = getAvatar(contact.getDisplayName(), size);
40 }
41 } else {
42 avatar = getAvatar(contact.getDisplayName(), size);
43 }
44 }
45 return avatar;
46 }
47
48 public Bitmap getAvatar(ListItem item, int size) {
49 if (item instanceof Contact) {
50 return getAvatar((Contact) item, size);
51 } else if (item instanceof Bookmark) {
52 Bookmark bookmark = (Bookmark) item;
53 if (bookmark.getConversation() != null) {
54 return getAvatar(bookmark.getConversation(), size);
55 } else {
56 return getAvatar(bookmark.getDisplayName(), size);
57 }
58 } else {
59 return getAvatar(item.getDisplayName(), size);
60 }
61 }
62
63 public Bitmap getAvatar(Conversation conversation, int size) {
64 if (conversation.getMode() == Conversation.MODE_SINGLE) {
65 return getAvatar(conversation.getContact(), size);
66 } else {
67 return getAvatar(conversation.getMucOptions(), size);
68 }
69 }
70
71 public Bitmap getAvatar(MucOptions mucOptions, int size) {
72 List<MucOptions.User> users = mucOptions.getUsers();
73 int count = users.size();
74 Bitmap bitmap = Bitmap
75 .createBitmap(size, size, Bitmap.Config.ARGB_8888);
76 Canvas canvas = new Canvas(bitmap);
77 bitmap.eraseColor(TRANSPARENT);
78
79 if (count == 0) {
80 String name = mucOptions.getConversation().getName();
81 String letter = name.substring(0, 1);
82 int color = this.getColorForName(name);
83 drawTile(canvas, letter, color, 0, 0, size, size);
84 } else if (count == 1) {
85 drawTile(canvas, users.get(0), 0, 0, size, size);
86 } else if (count == 2) {
87 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
88 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
89 } else if (count == 3) {
90 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
91 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
92 drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
93 size);
94 } else if (count == 4) {
95 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
96 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
97 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
98 drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
99 size);
100 } else {
101 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
102 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
103 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
104 drawTile(canvas, "\u2026", 0xFF202020, size / 2 + 1, size / 2 + 1,
105 size, size);
106 }
107 return bitmap;
108 }
109
110 public Bitmap getAvatar(Account account, int size) {
111 Bitmap avatar = mXmppConnectionService.getFileBackend().getAvatar(
112 account.getAvatar(), size);
113 if (avatar == null) {
114 avatar = getAvatar(account.getJid(), size);
115 }
116 return avatar;
117 }
118
119 public Bitmap getAvatar(String name, int size) {
120 Bitmap bitmap = Bitmap
121 .createBitmap(size, size, Bitmap.Config.ARGB_8888);
122 Canvas canvas = new Canvas(bitmap);
123 String letter = name.substring(0, 1);
124 int color = this.getColorForName(name);
125 drawTile(canvas, letter, color, 0, 0, size, size);
126 return bitmap;
127 }
128
129 private void drawTile(Canvas canvas, String letter, int tileColor,
130 int left, int top, int right, int bottom) {
131 letter = letter.toUpperCase(Locale.getDefault());
132 Paint tilePaint = new Paint(), textPaint = new Paint();
133 tilePaint.setColor(tileColor);
134 textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
135 textPaint.setColor(FG_COLOR);
136 textPaint.setTypeface(Typeface.create("sans-serif-light",
137 Typeface.NORMAL));
138 textPaint.setTextSize((float) ((right - left) * 0.8));
139 Rect rect = new Rect();
140
141 canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
142 textPaint.getTextBounds(letter, 0, 1, rect);
143 float width = textPaint.measureText(letter);
144 canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
145 / 2 + rect.height() / 2, textPaint);
146 }
147
148 private void drawTile(Canvas canvas, MucOptions.User user, int left,
149 int top, int right, int bottom) {
150 Contact contact = user.getContact();
151 if (contact != null) {
152 Uri uri = null;
153 if (contact.getAvatar() != null) {
154 uri = mXmppConnectionService.getFileBackend().getAvatarUri(
155 contact.getAvatar());
156 } else if (contact.getProfilePhoto() != null) {
157 uri = Uri.parse(contact.getProfilePhoto());
158 }
159 if (uri != null) {
160 Bitmap bitmap = mXmppConnectionService.getFileBackend()
161 .cropCenter(uri, bottom - top, right - left);
162 if (bitmap != null) {
163 drawTile(canvas, bitmap, left, top, right, bottom);
164 } else {
165 String letter = user.getName().substring(0, 1);
166 int color = this.getColorForName(user.getName());
167 drawTile(canvas, letter, color, left, top, right, bottom);
168 }
169 } else {
170 String letter = user.getName().substring(0, 1);
171 int color = this.getColorForName(user.getName());
172 drawTile(canvas, letter, color, left, top, right, bottom);
173 }
174 } else {
175 String letter = user.getName().substring(0, 1);
176 int color = this.getColorForName(user.getName());
177 drawTile(canvas, letter, color, left, top, right, bottom);
178 }
179 }
180
181 private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
182 int dstright, int dstbottom) {
183 Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
184 canvas.drawBitmap(bm, null, dst, null);
185 }
186
187 private int getColorForName(String name) {
188 int holoColors[] = { 0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
189 0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
190 0xFF795548, 0xFF607d8b };
191 return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
192 }
193
194}