refactored avatar generation. first step

25 files changed, 405 insertions, 368 deletions

diff --git a/src/eu/siacs/conversations/entities/Account.java b/src/eu/siacs/conversations/entities/Account.java
index ff509ba1..80a9d62f 100644
--- a/src/eu/siacs/conversations/entities/Account.java
+++ b/src/eu/siacs/conversations/entities/Account.java
@@ -14,14 +14,10 @@ import org.json.JSONObject;
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.crypto.OtrEngine;
-import eu.siacs.conversations.persistance.FileBackend;
 import eu.siacs.conversations.services.XmppConnectionService;
-import eu.siacs.conversations.utils.UIHelper;
 import eu.siacs.conversations.xmpp.XmppConnection;
 import android.content.ContentValues;
-import android.content.Context;
 import android.database.Cursor;
-import android.graphics.Bitmap;
 import android.os.SystemClock;
 
 public class Account extends AbstractEntity {
@@ -72,7 +68,7 @@ public class Account extends AbstractEntity {
 	private long mEndGracePeriod = 0L;
 	private String otrFingerprint;
 	private Roster roster = null;
-	
+
 	private List<Bookmark> bookmarks = new CopyOnWriteArrayList<Bookmark>();
 	public List<Conversation> pendingConferenceJoins = new CopyOnWriteArrayList<Conversation>();
 	public List<Conversation> pendingConferenceLeaves = new CopyOnWriteArrayList<Conversation>();
@@ -345,20 +341,6 @@ public class Account extends AbstractEntity {
 		return false;
 	}
 
-	public Bitmap getImage(Context context, int size) {
-		if (this.avatar != null) {
-			Bitmap bm = FileBackend.getAvatar(this.avatar, size, context);
-			if (bm == null) {
-				return UIHelper.getContactPicture(getJid(), size, context,
-						false);
-			} else {
-				return bm;
-			}
-		} else {
-			return UIHelper.getContactPicture(getJid(), size, context, false);
-		}
-	}
-
 	public boolean setAvatar(String filename) {
 		if (this.avatar != null && this.avatar.equals(filename)) {
 			return false;
@@ -401,7 +383,7 @@ public class Account extends AbstractEntity {
 			return R.string.account_status_unknown;
 		}
 	}
-	
+
 	public void activateGracePeriod() {
 		this.mEndGracePeriod = SystemClock.elapsedRealtime()
 				+ (Config.CARBON_GRACE_PERIOD * 1000);
diff --git a/src/eu/siacs/conversations/entities/Bookmark.java b/src/eu/siacs/conversations/entities/Bookmark.java
index 722fb6d9..dd9e805c 100644
--- a/src/eu/siacs/conversations/entities/Bookmark.java
+++ b/src/eu/siacs/conversations/entities/Bookmark.java
@@ -2,9 +2,6 @@ package eu.siacs.conversations.entities;
 
 import java.util.Locale;
 
-import android.content.Context;
-import android.graphics.Bitmap;
-import eu.siacs.conversations.utils.UIHelper;
 import eu.siacs.conversations.xml.Element;
 
 public class Bookmark extends Element implements ListItem {
@@ -120,21 +117,14 @@ public class Bookmark extends Element implements ListItem {
 		return this.account;
 	}
 
-	@Override
-	public Bitmap getImage(int dpSize, Context context) {
-		if (this.mJoinedConversation == null) {
-			return UIHelper.getContactPicture(getDisplayName(), dpSize,
-					context, false);
-		} else {
-			return UIHelper.getContactPicture(this.mJoinedConversation, dpSize,
-					context, false);
-		}
-	}
-
 	public void setConversation(Conversation conversation) {
 		this.mJoinedConversation = conversation;
 	}
 
+	public Conversation getConversation() {
+		return this.mJoinedConversation;
+	}
+
 	public String getName() {
 		return this.getAttribute("name");
 	}
diff --git a/src/eu/siacs/conversations/entities/Contact.java b/src/eu/siacs/conversations/entities/Contact.java
index 40eee73d..60c31a42 100644
--- a/src/eu/siacs/conversations/entities/Contact.java
+++ b/src/eu/siacs/conversations/entities/Contact.java
@@ -8,13 +8,9 @@ import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-import eu.siacs.conversations.persistance.FileBackend;
-import eu.siacs.conversations.utils.UIHelper;
 import eu.siacs.conversations.xml.Element;
 import android.content.ContentValues;
-import android.content.Context;
 import android.database.Cursor;
-import android.graphics.Bitmap;
 
 public class Contact implements ListItem {
 	public static final String TABLENAME = "contacts";
@@ -330,20 +326,6 @@ public class Contact implements ListItem {
 		}
 	}
 
-	@Override
-	public Bitmap getImage(int size, Context context) {
-		if (this.avatar != null) {
-			Bitmap bm = FileBackend.getAvatar(avatar, size, context);
-			if (bm == null) {
-				return UIHelper.getContactPicture(this, size, context, false);
-			} else {
-				return bm;
-			}
-		} else {
-			return UIHelper.getContactPicture(this, size, context, false);
-		}
-	}
-
 	public boolean setAvatar(String filename) {
 		if (this.avatar != null && this.avatar.equals(filename)) {
 			return false;
@@ -353,6 +335,10 @@ public class Contact implements ListItem {
 		}
 	}
 
+	public String getAvatar() {
+		return this.avatar;
+	}
+
 	public boolean deleteOtrFingerprint(String fingerprint) {
 		boolean success = false;
 		try {
diff --git a/src/eu/siacs/conversations/entities/Conversation.java b/src/eu/siacs/conversations/entities/Conversation.java
index e9500a0c..9d4c36db 100644
--- a/src/eu/siacs/conversations/entities/Conversation.java
+++ b/src/eu/siacs/conversations/entities/Conversation.java
@@ -8,7 +8,6 @@ import org.json.JSONException;
 import org.json.JSONObject;
 
 import eu.siacs.conversations.services.XmppConnectionService;
-import eu.siacs.conversations.utils.UIHelper;
 
 import net.java.otr4j.OtrException;
 import net.java.otr4j.crypto.OtrCryptoEngineImpl;
@@ -17,9 +16,7 @@ import net.java.otr4j.session.SessionID;
 import net.java.otr4j.session.SessionImpl;
 import net.java.otr4j.session.SessionStatus;
 import android.content.ContentValues;
-import android.content.Context;
 import android.database.Cursor;
-import android.graphics.Bitmap;
 import android.os.SystemClock;
 
 public class Conversation extends AbstractEntity {
@@ -329,9 +326,8 @@ public class Conversation extends AbstractEntity {
 
 	public synchronized MucOptions getMucOptions() {
 		if (this.mucOptions == null) {
-			this.mucOptions = new MucOptions(this.getAccount());
+			this.mucOptions = new MucOptions(this);
 		}
-		this.mucOptions.setConversation(this);
 		return this.mucOptions;
 	}
 
@@ -428,14 +424,6 @@ public class Conversation extends AbstractEntity {
 		return this.bookmark;
 	}
 
-	public Bitmap getImage(Context context, int size) {
-		if (mode == MODE_SINGLE) {
-			return getContact().getImage(size, context);
-		} else {
-			return UIHelper.getContactPicture(this, size, context, false);
-		}
-	}
-
 	public boolean hasDuplicateMessage(Message message) {
 		for (int i = this.getMessages().size() - 1; i >= 0; --i) {
 			if (this.messages.get(i).equals(message)) {
@@ -496,7 +484,7 @@ public class Conversation extends AbstractEntity {
 			}
 		}
 	}
-	
+
 	public void add(Message message) {
 		message.setConversation(this);
 		synchronized (this.messages) {
diff --git a/src/eu/siacs/conversations/entities/ListItem.java b/src/eu/siacs/conversations/entities/ListItem.java
index 19089b28..a1872d2f 100644
--- a/src/eu/siacs/conversations/entities/ListItem.java
+++ b/src/eu/siacs/conversations/entities/ListItem.java
@@ -1,12 +1,7 @@
 package eu.siacs.conversations.entities;
 
-import android.content.Context;
-import android.graphics.Bitmap;
-
 public interface ListItem extends Comparable<ListItem> {
 	public String getDisplayName();
 
 	public String getJid();
-
-	public Bitmap getImage(int dpSize, Context context);
 }
diff --git a/src/eu/siacs/conversations/entities/MucOptions.java b/src/eu/siacs/conversations/entities/MucOptions.java
index 12ea4e93..d7407cd5 100644
--- a/src/eu/siacs/conversations/entities/MucOptions.java
+++ b/src/eu/siacs/conversations/entities/MucOptions.java
@@ -102,6 +102,10 @@ public class MucOptions {
 		public long getPgpKeyId() {
 			return this.pgpKeyId;
 		}
+
+		public Contact getContact() {
+			return account.getRoster().getContactFromRoster(getJid());
+		}
 	}
 
 	private Account account;
@@ -116,8 +120,9 @@ public class MucOptions {
 	private String joinnick;
 	private String password = null;
 
-	public MucOptions(Account account) {
-		this.account = account;
+	public MucOptions(Conversation conversation) {
+		this.account = conversation.getAccount();
+		this.conversation = conversation;
 	}
 
 	public void deleteUser(String name) {
@@ -253,10 +258,6 @@ public class MucOptions {
 		this.joinnick = nick;
 	}
 
-	public void setConversation(Conversation conversation) {
-		this.conversation = conversation;
-	}
-
 	public boolean online() {
 		return this.isOnline;
 	}
@@ -361,4 +362,8 @@ public class MucOptions {
 		conversation
 				.setAttribute(Conversation.ATTRIBUTE_MUC_PASSWORD, password);
 	}
+
+	public Conversation getConversation() {
+		return this.conversation;
+	}
 }
\ No newline at end of file
diff --git a/src/eu/siacs/conversations/entities/Roster.java b/src/eu/siacs/conversations/entities/Roster.java
index ef47c577..3267b15a 100644
--- a/src/eu/siacs/conversations/entities/Roster.java
+++ b/src/eu/siacs/conversations/entities/Roster.java
@@ -15,6 +15,9 @@ public class Roster {
 	}
 
 	public Contact getContactFromRoster(String jid) {
+		if (jid == null) {
+			return null;
+		}
 		String cleanJid = jid.split("/", 2)[0];
 		Contact contact = contacts.get(cleanJid);
 		if (contact != null && contact.showInRoster()) {
diff --git a/src/eu/siacs/conversations/http/HttpConnection.java b/src/eu/siacs/conversations/http/HttpConnection.java
index 3eb8bb84..cbcdfb5c 100644
--- a/src/eu/siacs/conversations/http/HttpConnection.java
+++ b/src/eu/siacs/conversations/http/HttpConnection.java
@@ -91,17 +91,20 @@ public class HttpConnection implements Downloadable {
 		this.mStatus = status;
 		mXmppConnectionService.updateConversationUi();
 	}
-	
-	private void setupTrustManager(HttpsURLConnection connection, boolean interactive) {
+
+	private void setupTrustManager(HttpsURLConnection connection,
+			boolean interactive) {
 		X509TrustManager trustManager;
 		if (interactive) {
 			trustManager = mXmppConnectionService.getMemorizingTrustManager();
 		} else {
-			trustManager = mXmppConnectionService.getMemorizingTrustManager().getNonInteractive();
+			trustManager = mXmppConnectionService.getMemorizingTrustManager()
+					.getNonInteractive();
 		}
 		try {
 			SSLContext sc = SSLContext.getInstance("TLS");
-			sc.init(null,new X509TrustManager[] { trustManager },mXmppConnectionService.getRNG());
+			sc.init(null, new X509TrustManager[] { trustManager },
+					mXmppConnectionService.getRNG());
 			connection.setSSLSocketFactory(sc.getSocketFactory());
 		} catch (KeyManagementException e) {
 			return;
@@ -111,7 +114,7 @@ public class HttpConnection implements Downloadable {
 	}
 
 	private class FileSizeChecker implements Runnable {
-		
+
 		private boolean interactive = false;
 
 		public FileSizeChecker(boolean interactive) {
@@ -139,7 +142,8 @@ public class HttpConnection implements Downloadable {
 			}
 		}
 
-		private long retrieveFileSize() throws IOException, SSLHandshakeException {
+		private long retrieveFileSize() throws IOException,
+				SSLHandshakeException {
 			HttpURLConnection connection = (HttpURLConnection) mUrl
 					.openConnection();
 			connection.setRequestMethod("HEAD");
diff --git a/src/eu/siacs/conversations/persistance/DatabaseBackend.java b/src/eu/siacs/conversations/persistance/DatabaseBackend.java
index d3d6ccf2..b49cf4e6 100644
--- a/src/eu/siacs/conversations/persistance/DatabaseBackend.java
+++ b/src/eu/siacs/conversations/persistance/DatabaseBackend.java
@@ -152,13 +152,12 @@ public class DatabaseBackend extends SQLiteOpenHelper {
 		return list;
 	}
 
-	public ArrayList<Message> getMessages(
-			Conversation conversations, int limit) {
+	public ArrayList<Message> getMessages(Conversation conversations, int limit) {
 		return getMessages(conversations, limit, -1);
 	}
 
-	public ArrayList<Message> getMessages(Conversation conversation,
-			int limit, long timestamp) {
+	public ArrayList<Message> getMessages(Conversation conversation, int limit,
+			long timestamp) {
 		ArrayList<Message> list = new ArrayList<Message>();
 		SQLiteDatabase db = this.getReadableDatabase();
 		Cursor cursor;
diff --git a/src/eu/siacs/conversations/persistance/FileBackend.java b/src/eu/siacs/conversations/persistance/FileBackend.java
index 74918670..0a417b5c 100644
--- a/src/eu/siacs/conversations/persistance/FileBackend.java
+++ b/src/eu/siacs/conversations/persistance/FileBackend.java
@@ -35,7 +35,6 @@ import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.utils.CryptoHelper;
-import eu.siacs.conversations.utils.UIHelper;
 import eu.siacs.conversations.xmpp.pep.Avatar;
 
 public class FileBackend {
@@ -69,8 +68,7 @@ public class FileBackend {
 		return getFile(message, true);
 	}
 
-	public DownloadableFile getFile(Message message,
-			boolean decrypted) {
+	public DownloadableFile getFile(Message message, boolean decrypted) {
 		StringBuilder filename = new StringBuilder();
 		filename.append(getConversationsDirectory());
 		filename.append(message.getUuid());
@@ -85,10 +83,11 @@ public class FileBackend {
 		}
 		return new DownloadableFile(filename.toString());
 	}
-	
+
 	public static String getConversationsDirectory() {
 		return Environment.getExternalStoragePublicDirectory(
-				Environment.DIRECTORY_PICTURES).getAbsolutePath()+"/Conversations/";
+				Environment.DIRECTORY_PICTURES).getAbsolutePath()
+				+ "/Conversations/";
 	}
 
 	public Bitmap resize(Bitmap originalBitmap, int size) {
@@ -219,8 +218,7 @@ public class FileBackend {
 	}
 
 	public Bitmap getImageFromMessage(Message message) {
-		return BitmapFactory.decodeFile(getFile(message)
-				.getAbsolutePath());
+		return BitmapFactory.decodeFile(getFile(message).getAbsolutePath());
 	}
 
 	public Bitmap getThumbnail(Message message, int size, boolean cacheOnly)
@@ -306,7 +304,7 @@ public class FileBackend {
 	}
 
 	public boolean isAvatarCached(Avatar avatar) {
-		File file = new File(getAvatarPath(context, avatar.getFilename()));
+		File file = new File(getAvatarPath(avatar.getFilename()));
 		return file.exists();
 	}
 
@@ -314,7 +312,7 @@ public class FileBackend {
 		if (isAvatarCached(avatar)) {
 			return true;
 		}
-		String filename = getAvatarPath(context, avatar.getFilename());
+		String filename = getAvatarPath(avatar.getFilename());
 		File file = new File(filename + ".tmp");
 		file.getParentFile().mkdirs();
 		try {
@@ -346,10 +344,14 @@ public class FileBackend {
 		}
 	}
 
-	public static String getAvatarPath(Context context, String avatar) {
+	public String getAvatarPath(String avatar) {
 		return context.getFilesDir().getAbsolutePath() + "/avatars/" + avatar;
 	}
 
+	public Uri getAvatarUri(String avatar) {
+		return Uri.parse("file:" + getAvatarPath(avatar));
+	}
+
 	public Bitmap cropCenterSquare(Uri image, int size) {
 		try {
 			BitmapFactory.Options options = new BitmapFactory.Options();
@@ -371,7 +373,40 @@ public class FileBackend {
 		}
 	}
 
-	public static Bitmap cropCenterSquare(Bitmap input, int size) {
+	public Bitmap cropCenter(Uri image, int newHeight, int newWidth) {
+		try {
+			BitmapFactory.Options options = new BitmapFactory.Options();
+			options.inSampleSize = calcSampleSize(image,
+					Math.max(newHeight, newWidth));
+			InputStream is = context.getContentResolver()
+					.openInputStream(image);
+			Bitmap source = BitmapFactory.decodeStream(is, null, options);
+
+			int sourceWidth = source.getWidth();
+			int sourceHeight = source.getHeight();
+			float xScale = (float) newWidth / sourceWidth;
+			float yScale = (float) newHeight / sourceHeight;
+			float scale = Math.max(xScale, yScale);
+			float scaledWidth = scale * sourceWidth;
+			float scaledHeight = scale * sourceHeight;
+			float left = (newWidth - scaledWidth) / 2;
+			float top = (newHeight - scaledHeight) / 2;
+
+			RectF targetRect = new RectF(left, top, left + scaledWidth, top
+					+ scaledHeight);
+			Bitmap dest = Bitmap.createBitmap(newWidth, newHeight,
+					source.getConfig());
+			Canvas canvas = new Canvas(dest);
+			canvas.drawBitmap(source, null, targetRect, null);
+
+			return dest;
+		} catch (FileNotFoundException e) {
+			return null;
+		}
+
+	}
+
+	public Bitmap cropCenterSquare(Bitmap input, int size) {
 		int w = input.getWidth();
 		int h = input.getHeight();
 
@@ -440,13 +475,15 @@ public class FileBackend {
 		}
 	}
 
-	public static Bitmap getAvatar(String avatar, int size, Context context) {
-		Bitmap bm = BitmapFactory.decodeFile(FileBackend.getAvatarPath(context,
-				avatar));
+	public Bitmap getAvatar(String avatar, int size) {
+		if (avatar == null) {
+			return null;
+		}
+		Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
 		if (bm == null) {
 			return null;
 		}
-		return cropCenterSquare(bm, UIHelper.getRealPx(size, context));
+		return bm;
 	}
 
 	public boolean isFileAvailable(Message message) {
diff --git a/src/eu/siacs/conversations/services/AvatarService.java b/src/eu/siacs/conversations/services/AvatarService.java
new file mode 100644
index 00000000..def3bfd8
--- /dev/null
+++ b/src/eu/siacs/conversations/services/AvatarService.java
@@ -0,0 +1,194 @@
+package eu.siacs.conversations.services;
+
+import java.util.List;
+import java.util.Locale;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Bookmark;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.ListItem;
+import eu.siacs.conversations.entities.MucOptions;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.Typeface;
+import android.net.Uri;
+
+public class AvatarService {
+
+	private static final int FG_COLOR = 0xFFFAFAFA;
+	private static final int TRANSPARENT = 0x00000000;
+
+	protected XmppConnectionService mXmppConnectionService = null;
+
+	public AvatarService(XmppConnectionService service) {
+		this.mXmppConnectionService = service;
+	}
+
+	public Bitmap getAvatar(Contact contact, int size) {
+		Bitmap avatar = mXmppConnectionService.getFileBackend().getAvatar(
+				contact.getAvatar(), size);
+		if (avatar == null) {
+			if (contact.getProfilePhoto() != null) {
+				avatar = mXmppConnectionService.getFileBackend()
+						.cropCenterSquare(Uri.parse(contact.getProfilePhoto()),
+								size);
+				if (avatar == null) {
+					avatar = getAvatar(contact.getDisplayName(), size);
+				}
+			} else {
+				avatar = getAvatar(contact.getDisplayName(), size);
+			}
+		}
+		return avatar;
+	}
+
+	public Bitmap getAvatar(ListItem item, int size) {
+		if (item instanceof Contact) {
+			return getAvatar((Contact) item, size);
+		} else if (item instanceof Bookmark) {
+			Bookmark bookmark = (Bookmark) item;
+			if (bookmark.getConversation() != null) {
+				return getAvatar(bookmark.getConversation(), size);
+			} else {
+				return getAvatar(bookmark.getDisplayName(), size);
+			}
+		} else {
+			return getAvatar(item.getDisplayName(), size);
+		}
+	}
+
+	public Bitmap getAvatar(Conversation conversation, int size) {
+		if (conversation.getMode() == Conversation.MODE_SINGLE) {
+			return getAvatar(conversation.getContact(), size);
+		} else {
+			return getAvatar(conversation.getMucOptions(), size);
+		}
+	}
+
+	public Bitmap getAvatar(MucOptions mucOptions, int size) {
+		List<MucOptions.User> users = mucOptions.getUsers();
+		int count = users.size();
+		Bitmap bitmap = Bitmap
+				.createBitmap(size, size, Bitmap.Config.ARGB_8888);
+		Canvas canvas = new Canvas(bitmap);
+		bitmap.eraseColor(TRANSPARENT);
+
+		if (count == 0) {
+			String name = mucOptions.getConversation().getName();
+			String letter = name.substring(0, 1);
+			int color = this.getColorForName(name);
+			drawTile(canvas, letter, color, 0, 0, size, size);
+		} else if (count == 1) {
+			drawTile(canvas, users.get(0), 0, 0, size, size);
+		} else if (count == 2) {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
+			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
+		} else if (count == 3) {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
+			drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
+			drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
+					size);
+		} else if (count == 4) {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
+			drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
+			drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
+			drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
+					size);
+		} else {
+			drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
+			drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
+			drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
+			drawTile(canvas, "\u2026", 0xFF202020, size / 2 + 1, size / 2 + 1,
+					size, size);
+		}
+		return bitmap;
+	}
+
+	public Bitmap getAvatar(Account account, int size) {
+		Bitmap avatar = mXmppConnectionService.getFileBackend().getAvatar(
+				account.getAvatar(), size);
+		if (avatar == null) {
+			avatar = getAvatar(account.getJid(), size);
+		}
+		return avatar;
+	}
+
+	public Bitmap getAvatar(String name, int size) {
+		Bitmap bitmap = Bitmap
+				.createBitmap(size, size, Bitmap.Config.ARGB_8888);
+		Canvas canvas = new Canvas(bitmap);
+		String letter = name.substring(0, 1);
+		int color = this.getColorForName(name);
+		drawTile(canvas, letter, color, 0, 0, size, size);
+		return bitmap;
+	}
+
+	private void drawTile(Canvas canvas, String letter, int tileColor,
+			int left, int top, int right, int bottom) {
+		letter = letter.toUpperCase(Locale.getDefault());
+		Paint tilePaint = new Paint(), textPaint = new Paint();
+		tilePaint.setColor(tileColor);
+		textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
+		textPaint.setColor(FG_COLOR);
+		textPaint.setTypeface(Typeface.create("sans-serif-light",
+				Typeface.NORMAL));
+		textPaint.setTextSize((float) ((right - left) * 0.8));
+		Rect rect = new Rect();
+
+		canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
+		textPaint.getTextBounds(letter, 0, 1, rect);
+		float width = textPaint.measureText(letter);
+		canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
+				/ 2 + rect.height() / 2, textPaint);
+	}
+
+	private void drawTile(Canvas canvas, MucOptions.User user, int left,
+			int top, int right, int bottom) {
+		Contact contact = user.getContact();
+		if (contact != null) {
+			Uri uri = null;
+			if (contact.getAvatar() != null) {
+				uri = mXmppConnectionService.getFileBackend().getAvatarUri(
+						contact.getAvatar());
+			} else if (contact.getProfilePhoto() != null) {
+				uri = Uri.parse(contact.getProfilePhoto());
+			}
+			if (uri != null) {
+				Bitmap bitmap = mXmppConnectionService.getFileBackend()
+						.cropCenter(uri, bottom - top, right - left);
+				if (bitmap != null) {
+					drawTile(canvas, bitmap, left, top, right, bottom);
+				} else {
+					String letter = user.getName().substring(0, 1);
+					int color = this.getColorForName(user.getName());
+					drawTile(canvas, letter, color, left, top, right, bottom);
+				}
+			} else {
+				String letter = user.getName().substring(0, 1);
+				int color = this.getColorForName(user.getName());
+				drawTile(canvas, letter, color, left, top, right, bottom);
+			}
+		} else {
+			String letter = user.getName().substring(0, 1);
+			int color = this.getColorForName(user.getName());
+			drawTile(canvas, letter, color, left, top, right, bottom);
+		}
+	}
+
+	private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
+			int dstright, int dstbottom) {
+		Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
+		canvas.drawBitmap(bm, null, dst, null);
+	}
+
+	private int getColorForName(String name) {
+		int holoColors[] = { 0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
+				0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
+				0xFF795548, 0xFF607d8b };
+		return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
+	}
+
+}
diff --git a/src/eu/siacs/conversations/services/NotificationService.java b/src/eu/siacs/conversations/services/NotificationService.java
index 0b30e58e..a1336123 100644
--- a/src/eu/siacs/conversations/services/NotificationService.java
+++ b/src/eu/siacs/conversations/services/NotificationService.java
@@ -33,7 +33,7 @@ public class NotificationService {
 	public int NOTIFICATION_ID = 0x2342;
 	private Conversation mOpenConversation;
 	private boolean mIsInForeground;
-	
+
 	public NotificationService(XmppConnectionService service) {
 		this.mXmppConnectionService = service;
 		this.mNotificationManager = (NotificationManager) service
@@ -97,8 +97,8 @@ public class NotificationService {
 				if (messages.size() >= 1) {
 					Conversation conversation = messages.get(0)
 							.getConversation();
-					mBuilder.setLargeIcon(conversation.getImage(
-							mXmppConnectionService, 64));
+					// mBuilder.setLargeIcon(conversation.getImage(mXmppConnectionService,
+					// 64));
 					mBuilder.setContentTitle(conversation.getName());
 					StringBuilder text = new StringBuilder();
 					for (int i = 0; i < messages.size(); ++i) {
diff --git a/src/eu/siacs/conversations/services/XmppConnectionService.java b/src/eu/siacs/conversations/services/XmppConnectionService.java
index f557c3e1..6c8dc17a 100644
--- a/src/eu/siacs/conversations/services/XmppConnectionService.java
+++ b/src/eu/siacs/conversations/services/XmppConnectionService.java
@@ -111,6 +111,7 @@ public class XmppConnectionService extends Service {
 			this);
 	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 			this);
+	private AvatarService mAvatarService = new AvatarService(this);
 
 	private OnConversationUpdate mOnConversationUpdate = null;
 	private Integer convChangedListenerCount = 0;
@@ -144,9 +145,10 @@ public class XmppConnectionService extends Service {
 			startService(intent);
 		}
 	};
-	
-	private FileObserver fileObserver = new FileObserver(FileBackend.getConversationsDirectory()) {
-		
+
+	private FileObserver fileObserver = new FileObserver(
+			FileBackend.getConversationsDirectory()) {
+
 		@Override
 		public void onEvent(int event, String path) {
 			if (event == FileObserver.DELETE) {
@@ -286,6 +288,10 @@ public class XmppConnectionService extends Service {
 		return this.fileBackend;
 	}
 
+	public AvatarService getAvatarService() {
+		return this.mAvatarService;
+	}
+
 	public Message attachImageToConversation(final Conversation conversation,
 			final Uri uri, final UiCallback<Message> callback) {
 		final Message message;
@@ -346,7 +352,7 @@ public class XmppConnectionService extends Service {
 			}
 		}
 		this.wakeLock.acquire();
-		
+
 		for (Account account : accounts) {
 			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 				if (!hasInternetConnection()) {
@@ -407,7 +413,7 @@ public class XmppConnectionService extends Service {
 		}
 		return START_STICKY;
 	}
-	
+
 	public boolean hasInternetConnection() {
 		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 				.getSystemService(Context.CONNECTIVITY_SERVICE);
@@ -818,21 +824,24 @@ public class XmppConnectionService extends Service {
 		}
 		return this.conversations;
 	}
-	
+
 	private void checkDeletedFiles(Conversation conversation) {
-		for(Message message : conversation.getMessages()) {
-			if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP) {
+		for (Message message : conversation.getMessages()) {
+			if (message.getType() == Message.TYPE_IMAGE
+					&& message.getEncryption() != Message.ENCRYPTION_PGP) {
 				if (!getFileBackend().isFileAvailable(message)) {
 					message.setDownloadable(new DeletedDownloadable());
 				}
 			}
 		}
 	}
-	
+
 	private void markFileDeleted(String uuid) {
-		for(Conversation conversation : getConversations()) {
-			for(Message message : conversation.getMessages()) {
-				if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getUuid().equals(uuid)) {
+		for (Conversation conversation : getConversations()) {
+			for (Message message : conversation.getMessages()) {
+				if (message.getType() == Message.TYPE_IMAGE
+						&& message.getEncryption() != Message.ENCRYPTION_PGP
+						&& message.getUuid().equals(uuid)) {
 					if (!getFileBackend().isFileAvailable(message)) {
 						message.setDownloadable(new DeletedDownloadable());
 						updateConversationUi();
@@ -1113,7 +1122,7 @@ public class XmppConnectionService extends Service {
 				}
 			}
 		}
-		Log.d(Config.LOGTAG,"app switched into foreground");
+		Log.d(Config.LOGTAG, "app switched into foreground");
 	}
 
 	private void switchToBackground() {
@@ -1126,7 +1135,7 @@ public class XmppConnectionService extends Service {
 			}
 		}
 		this.mNotificationService.setIsInForeground(false);
-		Log.d(Config.LOGTAG,"app switched into background");
+		Log.d(Config.LOGTAG, "app switched into background");
 	}
 
 	private boolean isScreenOn() {
@@ -1288,7 +1297,9 @@ public class XmppConnectionService extends Service {
 							leaveMuc(conversation);
 						} else {
 							if (conversation.endOtrIfNeeded()) {
-								Log.d(Config.LOGTAG,account.getJid()+": ended otr session with "+conversation.getContactJid());
+								Log.d(Config.LOGTAG, account.getJid()
+										+ ": ended otr session with "
+										+ conversation.getContactJid());
 							}
 						}
 					}
@@ -1871,7 +1882,7 @@ public class XmppConnectionService extends Service {
 	public HttpConnectionManager getHttpConnectionManager() {
 		return this.mHttpConnectionManager;
 	}
-	
+
 	private class DeletedDownloadable implements Downloadable {
 
 		@Override
@@ -1888,6 +1899,6 @@ public class XmppConnectionService extends Service {
 		public long getFileSize() {
 			return 0;
 		}
-		
+
 	}
 }
diff --git a/src/eu/siacs/conversations/ui/ConferenceDetailsActivity.java b/src/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
index ca3bb4a2..98bf70ed 100644
--- a/src/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
+++ b/src/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
@@ -201,7 +201,8 @@ public class ConferenceDetailsActivity extends XmppActivity {
 	private void populateView() {
 		mAccountJid.setText(getString(R.string.using_account, conversation
 				.getAccount().getJid()));
-		mYourPhoto.setImageBitmap(conversation.getAccount().getImage(this, 48));
+		mYourPhoto.setImageBitmap(xmppConnectionService.getAvatarService()
+				.getAvatar(conversation.getAccount(), getPixel(48)));
 		setTitle(conversation.getName());
 		mFullJid.setText(conversation.getContactJid().split("/", 2)[0]);
 		mYourNick.setText(conversation.getMucOptions().getActualNick());
@@ -248,21 +249,23 @@ public class ConferenceDetailsActivity extends XmppActivity {
 			}
 			Bitmap bm;
 			if (user.getJid() != null) {
-				Contact contact = account.getRoster().getContact(user.getJid());
-				if (contact.showInRoster()) {
-					bm = contact.getImage(48, this);
+				Contact contact = account.getRoster().getContactFromRoster(
+						user.getJid());
+				if (contact != null) {
+					bm = xmppConnectionService.getAvatarService().getAvatar(
+							contact, getPixel(48));
 					name.setText(contact.getDisplayName());
 					role.setText(user.getName() + " \u2022 "
 							+ getReadableRole(user.getRole()));
 				} else {
-					bm = UIHelper.getContactPicture(user.getName(), 48, this,
-							false);
+					bm = xmppConnectionService.getAvatarService().getAvatar(
+							user.getName(), getPixel(48));
 					name.setText(user.getName());
 					role.setText(getReadableRole(user.getRole()));
 				}
 			} else {
-				bm = UIHelper
-						.getContactPicture(user.getName(), 48, this, false);
+				bm = xmppConnectionService.getAvatarService().getAvatar(
+						user.getName(), getPixel(48));
 				name.setText(user.getName());
 				role.setText(getReadableRole(user.getRole()));
 			}
diff --git a/src/eu/siacs/conversations/ui/ContactDetailsActivity.java b/src/eu/siacs/conversations/ui/ContactDetailsActivity.java
index 65bd5cbf..d43eee59 100644
--- a/src/eu/siacs/conversations/ui/ContactDetailsActivity.java
+++ b/src/eu/siacs/conversations/ui/ContactDetailsActivity.java
@@ -313,10 +313,7 @@ public class ContactDetailsActivity extends XmppActivity {
 		}
 		accountJidTv.setText(getString(R.string.using_account, contact
 				.getAccount().getJid()));
-
-		UIHelper.prepareContactBadge(this, badge, contact,
-				getApplicationContext());
-
+		prepareContactBadge(badge, contact);
 		if (contact.getSystemAccount() == null) {
 			badge.setOnClickListener(onBadgeClick);
 		}
@@ -383,6 +380,16 @@ public class ContactDetailsActivity extends XmppActivity {
 		}
 	}
 
+	private void prepareContactBadge(QuickContactBadge badge, Contact contact) {
+		if (contact.getSystemAccount() != null) {
+			String[] systemAccount = contact.getSystemAccount().split("#");
+			long id = Long.parseLong(systemAccount[0]);
+			badge.assignContactUri(Contacts.getLookupUri(id, systemAccount[1]));
+		}
+		badge.setImageBitmap(xmppConnectionService.getAvatarService()
+				.getAvatar(contact, getPixel(72)));
+	}
+
 	protected void confirmToDeleteFingerprint(final String fingerprint) {
 		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 		builder.setTitle(R.string.delete_fingerprint);
diff --git a/src/eu/siacs/conversations/ui/PublishProfilePictureActivity.java b/src/eu/siacs/conversations/ui/PublishProfilePictureActivity.java
index f46d92f9..24330361 100644
--- a/src/eu/siacs/conversations/ui/PublishProfilePictureActivity.java
+++ b/src/eu/siacs/conversations/ui/PublishProfilePictureActivity.java
@@ -158,8 +158,8 @@ public class PublishProfilePictureActivity extends XmppActivity {
 				if (this.avatarUri == null) {
 					if (this.account.getAvatar() != null
 							|| this.defaultUri == null) {
-						this.avatar.setImageBitmap(this.account.getImage(
-								getApplicationContext(), 384));
+						// this.avatar.setImageBitmap(this.account.getImage(getApplicationContext(),
+						// 384));
 						if (this.defaultUri != null) {
 							this.avatar
 									.setOnLongClickListener(this.backToDefaultListener);
diff --git a/src/eu/siacs/conversations/ui/XmppActivity.java b/src/eu/siacs/conversations/ui/XmppActivity.java
index cd77557c..ca1bf465 100644
--- a/src/eu/siacs/conversations/ui/XmppActivity.java
+++ b/src/eu/siacs/conversations/ui/XmppActivity.java
@@ -526,6 +526,11 @@ public abstract class XmppActivity extends Activity {
 		return this.mSecondaryBackgroundColor;
 	}
 
+	public int getPixel(int dp) {
+		DisplayMetrics metrics = getResources().getDisplayMetrics();
+		return ((int) (dp * metrics.density));
+	}
+
 	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
 		private final WeakReference<ImageView> imageViewReference;
 		private Message message = null;
diff --git a/src/eu/siacs/conversations/ui/adapter/AccountAdapter.java b/src/eu/siacs/conversations/ui/adapter/AccountAdapter.java
index 5c25bf34..40229953 100644
--- a/src/eu/siacs/conversations/ui/adapter/AccountAdapter.java
+++ b/src/eu/siacs/conversations/ui/adapter/AccountAdapter.java
@@ -34,7 +34,8 @@ public class AccountAdapter extends ArrayAdapter<Account> {
 		jid.setText(account.getJid());
 		TextView statusView = (TextView) view.findViewById(R.id.account_status);
 		ImageView imageView = (ImageView) view.findViewById(R.id.account_image);
-		imageView.setImageBitmap(account.getImage(activity, 48));
+		imageView.setImageBitmap(activity.xmppConnectionService
+				.getAvatarService().getAvatar(account, activity.getPixel(48)));
 		switch (account.getStatus()) {
 		case Account.STATUS_DISABLED:
 			statusView.setText(getContext().getString(
diff --git a/src/eu/siacs/conversations/ui/adapter/ConversationAdapter.java b/src/eu/siacs/conversations/ui/adapter/ConversationAdapter.java
index 20c7bee2..1fea8dcf 100644
--- a/src/eu/siacs/conversations/ui/adapter/ConversationAdapter.java
+++ b/src/eu/siacs/conversations/ui/adapter/ConversationAdapter.java
@@ -127,7 +127,9 @@ public class ConversationAdapter extends ArrayAdapter<Conversation> {
 
 		ImageView profilePicture = (ImageView) view
 				.findViewById(R.id.conversation_image);
-		profilePicture.setImageBitmap(conversation.getImage(activity, 56));
+		profilePicture.setImageBitmap(activity.xmppConnectionService
+				.getAvatarService().getAvatar(conversation,
+						activity.getPixel(56)));
 
 		return view;
 	}
diff --git a/src/eu/siacs/conversations/ui/adapter/ListItemAdapter.java b/src/eu/siacs/conversations/ui/adapter/ListItemAdapter.java
index df67e566..64e077a3 100644
--- a/src/eu/siacs/conversations/ui/adapter/ListItemAdapter.java
+++ b/src/eu/siacs/conversations/ui/adapter/ListItemAdapter.java
@@ -4,6 +4,7 @@ import java.util.List;
 
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.ListItem;
+import eu.siacs.conversations.ui.XmppActivity;
 import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -14,8 +15,11 @@ import android.widget.TextView;
 
 public class ListItemAdapter extends ArrayAdapter<ListItem> {
 
-	public ListItemAdapter(Context context, List<ListItem> objects) {
-		super(context, 0, objects);
+	protected XmppActivity activity;
+
+	public ListItemAdapter(XmppActivity activity, List<ListItem> objects) {
+		super(activity, 0, objects);
+		this.activity = activity;
 	}
 
 	@Override
@@ -32,7 +36,8 @@ public class ListItemAdapter extends ArrayAdapter<ListItem> {
 
 		jid.setText(item.getJid());
 		name.setText(item.getDisplayName());
-		picture.setImageBitmap(item.getImage(48, getContext()));
+		picture.setImageBitmap(activity.xmppConnectionService
+				.getAvatarService().getAvatar(item, activity.getPixel(48)));
 		return view;
 	}
 
diff --git a/src/eu/siacs/conversations/ui/adapter/MessageAdapter.java b/src/eu/siacs/conversations/ui/adapter/MessageAdapter.java
index db783b7f..bc5b3387 100644
--- a/src/eu/siacs/conversations/ui/adapter/MessageAdapter.java
+++ b/src/eu/siacs/conversations/ui/adapter/MessageAdapter.java
@@ -59,8 +59,10 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 		if (this.accountBitmap == null) {
 
 			if (getCount() > 0) {
-				this.accountBitmap = getItem(0).getConversation().getAccount()
-						.getImage(getContext(), 48);
+				this.accountBitmap = activity.xmppConnectionService
+						.getAvatarService().getAvatar(
+								getItem(0).getConversation().getAccount(),
+								activity.getPixel(48));
 			}
 		}
 		return this.accountBitmap;
@@ -494,9 +496,12 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 					&& d.getStatus() == Downloadable.STATUS_DELETED) {
 				displayInfoMessage(viewHolder, R.string.image_file_deleted);
 			} else if (d != null && d.getStatus() == Downloadable.STATUS_OFFER) {
-				displayDownloadableMessage(viewHolder, item,R.string.download_image);
-			} else if (d != null && d.getStatus() == Downloadable.STATUS_OFFER_CHECK_FILESIZE) {
-				displayDownloadableMessage(viewHolder, item,R.string.check_image_filesize);
+				displayDownloadableMessage(viewHolder, item,
+						R.string.download_image);
+			} else if (d != null
+					&& d.getStatus() == Downloadable.STATUS_OFFER_CHECK_FILESIZE) {
+				displayDownloadableMessage(viewHolder, item,
+						R.string.check_image_filesize);
 			} else if ((item.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 					|| (item.getEncryption() == Message.ENCRYPTION_NONE)
 					|| (item.getEncryption() == Message.ENCRYPTION_OTR)) {
@@ -564,7 +569,8 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 		public Bitmap get(Contact contact, Context context) {
 			if (!contactBitmaps.containsKey(contact.getJid())) {
 				contactBitmaps.put(contact.getJid(),
-						contact.getImage(48, context));
+						activity.xmppConnectionService.getAvatarService()
+								.getAvatar(contact, activity.getPixel(48)));
 			}
 			return contactBitmaps.get(contact.getJid());
 		}
@@ -573,8 +579,8 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 			if (unknownBitmaps.containsKey(name)) {
 				return unknownBitmaps.get(name);
 			} else {
-				Bitmap bm = UIHelper
-						.getContactPicture(name, 48, context, false);
+				Bitmap bm = activity.xmppConnectionService.getAvatarService()
+						.getAvatar(name, activity.getPixel(48));
 				unknownBitmaps.put(name, bm);
 				return bm;
 			}
diff --git a/src/eu/siacs/conversations/utils/PhoneHelper.java b/src/eu/siacs/conversations/utils/PhoneHelper.java
index 25cff099..5becc7e7 100644
--- a/src/eu/siacs/conversations/utils/PhoneHelper.java
+++ b/src/eu/siacs/conversations/utils/PhoneHelper.java
@@ -22,7 +22,7 @@ public class PhoneHelper {
 
 		final String[] PROJECTION = new String[] { ContactsContract.Data._ID,
 				ContactsContract.Data.DISPLAY_NAME,
-				ContactsContract.Data.PHOTO_THUMBNAIL_URI,
+				ContactsContract.Data.PHOTO_URI,
 				ContactsContract.Data.LOOKUP_KEY,
 				ContactsContract.CommonDataKinds.Im.DATA };
 
@@ -50,10 +50,8 @@ public class PhoneHelper {
 							"displayname",
 							cursor.getString(cursor
 									.getColumnIndex(ContactsContract.Data.DISPLAY_NAME)));
-					contact.putString(
-							"photouri",
-							cursor.getString(cursor
-									.getColumnIndex(ContactsContract.Data.PHOTO_THUMBNAIL_URI)));
+					contact.putString("photouri", cursor.getString(cursor
+							.getColumnIndex(ContactsContract.Data.PHOTO_URI)));
 					contact.putString("lookup", cursor.getString(cursor
 							.getColumnIndex(ContactsContract.Data.LOOKUP_KEY)));
 
diff --git a/src/eu/siacs/conversations/utils/UIHelper.java b/src/eu/siacs/conversations/utils/UIHelper.java
index 671e66d5..57e9153d 100644
--- a/src/eu/siacs/conversations/utils/UIHelper.java
+++ b/src/eu/siacs/conversations/utils/UIHelper.java
@@ -123,167 +123,6 @@ public class UIHelper {
 		}
 	}
 
-	public static int getRealPx(int dp, Context context) {
-		final DisplayMetrics metrics = context.getResources()
-				.getDisplayMetrics();
-		return ((int) (dp * metrics.density));
-	}
-
-	private static int getNameColor(String name) {
-		/*
-		 * int holoColors[] = { 0xFF1da9da, 0xFFb368d9, 0xFF83b600, 0xFFffa713,
-		 * 0xFFe92727 };
-		 */
-		int holoColors[] = { 0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
-				0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
-				0xFF795548, 0xFF607d8b };
-		return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
-	}
-
-	private static void drawTile(Canvas canvas, String letter, int tileColor,
-			int textColor, int left, int top, int right, int bottom) {
-		Paint tilePaint = new Paint(), textPaint = new Paint();
-		tilePaint.setColor(tileColor);
-		textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
-		textPaint.setColor(textColor);
-		textPaint.setTypeface(Typeface.create("sans-serif-light",
-				Typeface.NORMAL));
-		textPaint.setTextSize((float) ((right - left) * 0.8));
-		Rect rect = new Rect();
-
-		canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
-		textPaint.getTextBounds(letter, 0, 1, rect);
-		float width = textPaint.measureText(letter);
-		canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
-				/ 2 + rect.height() / 2, textPaint);
-	}
-
-	private static Bitmap getUnknownContactPicture(String[] names, int size,
-			int bgColor, int fgColor) {
-		int tiles = (names.length > 4) ? 4 : (names.length < 1) ? 1
-				: names.length;
-		Bitmap bitmap = Bitmap
-				.createBitmap(size, size, Bitmap.Config.ARGB_8888);
-		Canvas canvas = new Canvas(bitmap);
-
-		String[] letters = new String[tiles];
-		int[] colors = new int[tiles];
-		if (names.length < 1) {
-			letters[0] = "?";
-			colors[0] = 0xFFe92727;
-		} else {
-			for (int i = 0; i < tiles; ++i) {
-				letters[i] = (names[i].length() > 0) ? names[i].substring(0, 1)
-						.toUpperCase(Locale.US) : " ";
-				colors[i] = getNameColor(names[i]);
-			}
-
-			if (names.length > 4) {
-				letters[3] = "\u2026"; // Unicode ellipsis
-				colors[3] = 0xFF202020;
-			}
-		}
-
-		bitmap.eraseColor(bgColor);
-
-		switch (tiles) {
-		case 1:
-			drawTile(canvas, letters[0], colors[0], fgColor, 0, 0, size, size);
-			break;
-
-		case 2:
-			drawTile(canvas, letters[0], colors[0], fgColor, 0, 0,
-					size / 2 - 1, size);
-			drawTile(canvas, letters[1], colors[1], fgColor, size / 2 + 1, 0,
-					size, size);
-			break;
-
-		case 3:
-			drawTile(canvas, letters[0], colors[0], fgColor, 0, 0,
-					size / 2 - 1, size);
-			drawTile(canvas, letters[1], colors[1], fgColor, size / 2 + 1, 0,
-					size, size / 2 - 1);
-			drawTile(canvas, letters[2], colors[2], fgColor, size / 2 + 1,
-					size / 2 + 1, size, size);
-			break;
-
-		case 4:
-			drawTile(canvas, letters[0], colors[0], fgColor, 0, 0,
-					size / 2 - 1, size / 2 - 1);
-			drawTile(canvas, letters[1], colors[1], fgColor, 0, size / 2 + 1,
-					size / 2 - 1, size);
-			drawTile(canvas, letters[2], colors[2], fgColor, size / 2 + 1, 0,
-					size, size / 2 - 1);
-			drawTile(canvas, letters[3], colors[3], fgColor, size / 2 + 1,
-					size / 2 + 1, size, size);
-			break;
-		}
-
-		return bitmap;
-	}
-
-	private static Bitmap getMucContactPicture(Conversation conversation,
-			int size, int bgColor, int fgColor) {
-		List<User> members = conversation.getMucOptions().getUsers();
-		if (members.size() == 0) {
-			return getUnknownContactPicture(
-					new String[] { conversation.getName() }, size, bgColor,
-					fgColor);
-		}
-		ArrayList<String> names = new ArrayList<String>();
-		names.add(conversation.getMucOptions().getActualNick());
-		for (User user : members) {
-			names.add(user.getName());
-			if (names.size() > 4) {
-				break;
-			}
-		}
-		String[] mArrayNames = new String[names.size()];
-		names.toArray(mArrayNames);
-		return getUnknownContactPicture(mArrayNames, size, bgColor, fgColor);
-	}
-
-	public static Bitmap getContactPicture(Conversation conversation,
-			int dpSize, Context context, boolean notification) {
-		if (conversation.getMode() == Conversation.MODE_SINGLE) {
-			return getContactPicture(conversation.getContact(), dpSize,
-					context, notification);
-		} else {
-			int fgColor = UIHelper.FG_COLOR, bgColor = (notification) ? UIHelper.BG_COLOR
-					: UIHelper.TRANSPARENT;
-
-			return getMucContactPicture(conversation,
-					getRealPx(dpSize, context), bgColor, fgColor);
-		}
-	}
-
-	public static Bitmap getContactPicture(Contact contact, int dpSize,
-			Context context, boolean notification) {
-		String uri = contact.getProfilePhoto();
-		if (uri == null) {
-			return getContactPicture(contact.getDisplayName(), dpSize, context,
-					notification);
-		}
-		try {
-			Bitmap bm = BitmapFactory.decodeStream(context.getContentResolver()
-					.openInputStream(Uri.parse(uri)));
-			return Bitmap.createScaledBitmap(bm, getRealPx(dpSize, context),
-					getRealPx(dpSize, context), false);
-		} catch (FileNotFoundException e) {
-			return getContactPicture(contact.getDisplayName(), dpSize, context,
-					notification);
-		}
-	}
-
-	public static Bitmap getContactPicture(String name, int dpSize,
-			Context context, boolean notification) {
-		int fgColor = UIHelper.FG_COLOR, bgColor = (notification) ? UIHelper.BG_COLOR
-				: UIHelper.TRANSPARENT;
-
-		return getUnknownContactPicture(new String[] { name },
-				getRealPx(dpSize, context), bgColor, fgColor);
-	}
-
 	public static void showErrorNotification(Context context,
 			List<Account> accounts) {
 		NotificationManager mNotificationManager = (NotificationManager) context
@@ -326,16 +165,6 @@ public class UIHelper {
 		mNotificationManager.notify(1111, notification);
 	}
 
-	public static void prepareContactBadge(final Activity activity,
-			QuickContactBadge badge, final Contact contact, Context context) {
-		if (contact.getSystemAccount() != null) {
-			String[] systemAccount = contact.getSystemAccount().split("#");
-			long id = Long.parseLong(systemAccount[0]);
-			badge.assignContactUri(Contacts.getLookupUri(id, systemAccount[1]));
-		}
-		badge.setImageBitmap(contact.getImage(72, context));
-	}
-
 	@SuppressLint("InflateParams")
 	public static AlertDialog getVerifyFingerprintDialog(
 			final ConversationActivity activity,
@@ -370,25 +199,6 @@ public class UIHelper {
 		return builder.create();
 	}
 
-	public static Bitmap getSelfContactPicture(Account account, int size,
-			boolean showPhoneSelfContactPicture, Context context) {
-		if (showPhoneSelfContactPicture) {
-			Uri selfiUri = PhoneHelper.getSefliUri(context);
-			if (selfiUri != null) {
-				try {
-					return BitmapFactory.decodeStream(context
-							.getContentResolver().openInputStream(selfiUri));
-				} catch (FileNotFoundException e) {
-					return getContactPicture(account.getJid(), size, context,
-							false);
-				}
-			}
-			return getContactPicture(account.getJid(), size, context, false);
-		} else {
-			return getContactPicture(account.getJid(), size, context, false);
-		}
-	}
-
 	private final static class EmoticonPattern {
 		Pattern pattern;
 		String replacement;
diff --git a/src/eu/siacs/conversations/xmpp/XmppConnection.java b/src/eu/siacs/conversations/xmpp/XmppConnection.java
index 34ff70c9..ffa438bd 100644
--- a/src/eu/siacs/conversations/xmpp/XmppConnection.java
+++ b/src/eu/siacs/conversations/xmpp/XmppConnection.java
@@ -110,7 +110,7 @@ public class XmppConnection implements Runnable {
 	private OnBindListener bindListener = null;
 	private OnMessageAcknowledged acknowledgedListener = null;
 	private MemorizingTrustManager mMemorizingTrustManager;
-    private final Context applicationContext;
+	private final Context applicationContext;
 
 	public XmppConnection(Account account, XmppConnectionService service) {
 		this.mRandom = service.getRNG();
@@ -119,7 +119,7 @@ public class XmppConnection implements Runnable {
 		this.wakeLock = service.getPowerManager().newWakeLock(
 				PowerManager.PARTIAL_WAKE_LOCK, account.getJid());
 		tagWriter = new TagWriter();
-        applicationContext = service.getApplicationContext();
+		applicationContext = service.getApplicationContext();
 	}
 
 	protected void changeStatus(int nextStatus) {
@@ -172,13 +172,15 @@ public class XmppConnection implements Runnable {
 				} else {
 					boolean socketError = true;
 					int srvIndex = 0;
-					while (socketError && namePort.containsKey("name" + srvIndex)){
+					while (socketError
+							&& namePort.containsKey("name" + srvIndex)) {
 						try {
-							srvRecordServer = namePort.getString("name" + srvIndex);
+							srvRecordServer = namePort.getString("name"
+									+ srvIndex);
 							srvRecordPort = namePort.getInt("port" + srvIndex);
 							Log.d(Config.LOGTAG, account.getJid()
-									+ ": using values from dns " + srvRecordServer
-									+ ":" + srvRecordPort);
+									+ ": using values from dns "
+									+ srvRecordServer + ":" + srvRecordPort);
 							socket = new Socket(srvRecordServer, srvRecordPort);
 							socketError = false;
 						} catch (UnknownHostException e) {
@@ -384,13 +386,13 @@ public class XmppConnection implements Runnable {
 		iq.addChild("ping", "urn:xmpp:ping");
 		this.sendIqPacket(iq, new OnIqPacketReceived() {
 
-            @Override
-            public void onIqPacketReceived(Account account, IqPacket packet) {
-                Log.d(Config.LOGTAG, account.getJid()
-                        + ": online with resource " + account.getResource());
-                changeStatus(Account.STATUS_ONLINE);
-            }
-        });
+			@Override
+			public void onIqPacketReceived(Account account, IqPacket packet) {
+				Log.d(Config.LOGTAG, account.getJid()
+						+ ": online with resource " + account.getResource());
+				changeStatus(Account.STATUS_ONLINE);
+			}
+		});
 	}
 
 	private Element processPacket(Tag currentTag, int packetType)
@@ -527,7 +529,8 @@ public class XmppConnection implements Runnable {
 	}
 
 	private SharedPreferences getPreferences() {
-		return PreferenceManager.getDefaultSharedPreferences(applicationContext);
+		return PreferenceManager
+				.getDefaultSharedPreferences(applicationContext);
 	}
 
 	private boolean enableLegacySSL() {
@@ -551,14 +554,15 @@ public class XmppConnection implements Runnable {
 					true);
 
 			// Support all protocols except legacy SSL.
-			// The min SDK version prevents us having to worry about SSLv2. In future, this may be
+			// The min SDK version prevents us having to worry about SSLv2. In
+			// future, this may be
 			// true of SSLv3 as well.
 			final String[] supportProtocols;
 			if (enableLegacySSL()) {
 				supportProtocols = sslSocket.getSupportedProtocols();
 			} else {
-				final List<String> supportedProtocols = new LinkedList<String>(Arrays.asList(
-							sslSocket.getSupportedProtocols()));
+				final List<String> supportedProtocols = new LinkedList<String>(
+						Arrays.asList(sslSocket.getSupportedProtocols()));
 				supportedProtocols.remove("SSLv3");
 				supportProtocols = new String[supportedProtocols.size()];
 				supportedProtocols.toArray(supportProtocols);
@@ -613,7 +617,8 @@ public class XmppConnection implements Runnable {
 		} else if (compressionAvailable()) {
 			sendCompressionZlib();
 		} else if (this.streamFeatures.hasChild("register")
-				&& account.isOptionSet(Account.OPTION_REGISTER) && usingEncryption) {
+				&& account.isOptionSet(Account.OPTION_REGISTER)
+				&& usingEncryption) {
 			sendRegistryRequest();
 		} else if (!this.streamFeatures.hasChild("register")
 				&& account.isOptionSet(Account.OPTION_REGISTER)) {
@@ -637,7 +642,8 @@ public class XmppConnection implements Runnable {
 		} else if (this.streamFeatures.hasChild("bind") && shouldBind) {
 			sendBindRequest();
 		} else {
-			Log.d(Config.LOGTAG,account.getJid()+": incompatible server. disconnecting");
+			Log.d(Config.LOGTAG, account.getJid()
+					+ ": incompatible server. disconnecting");
 			disconnect(true);
 		}
 	}
diff --git a/src/eu/siacs/conversations/xmpp/jingle/JingleConnection.java b/src/eu/siacs/conversations/xmpp/jingle/JingleConnection.java
index 5b3dfbff..330a4ebb 100644
--- a/src/eu/siacs/conversations/xmpp/jingle/JingleConnection.java
+++ b/src/eu/siacs/conversations/xmpp/jingle/JingleConnection.java
@@ -358,8 +358,8 @@ public class JingleConnection implements Downloadable {
 		Content content = new Content(this.contentCreator, this.contentName);
 		if (message.getType() == Message.TYPE_IMAGE) {
 			content.setTransportId(this.transportId);
-			this.file = this.mXmppConnectionService.getFileBackend()
-					.getFile(message, false);
+			this.file = this.mXmppConnectionService.getFileBackend().getFile(
+					message, false);
 			if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 				Conversation conversation = this.message.getConversation();
 				this.mXmppConnectionService.renewSymmetricKey(conversation);
@@ -634,7 +634,7 @@ public class JingleConnection implements Downloadable {
 	}
 
 	private void sendFallbackToIbb() {
-		Log.d(Config.LOGTAG,"sending fallback to ibb");
+		Log.d(Config.LOGTAG, "sending fallback to ibb");
 		JinglePacket packet = this.bootstrapPacket("transport-replace");
 		Content content = new Content(this.contentCreator, this.contentName);
 		this.transportId = this.mJingleConnectionManager.nextRandomId();
@@ -646,7 +646,7 @@ public class JingleConnection implements Downloadable {
 	}
 
 	private boolean receiveFallbackToIbb(JinglePacket packet) {
-		Log.d(Config.LOGTAG,"receiving fallack to ibb");
+		Log.d(Config.LOGTAG, "receiving fallack to ibb");
 		String receivedBlockSize = packet.getJingleContent().ibbTransport()
 				.getAttribute("block-size");
 		if (receivedBlockSize != null) {
@@ -881,7 +881,7 @@ public class JingleConnection implements Downloadable {
 		if (account.getStatus() == Account.STATUS_ONLINE) {
 			if (mJingleStatus == JINGLE_STATUS_INITIATED) {
 				new Thread(new Runnable() {
-	
+
 					@Override
 					public void run() {
 						sendAccept();