Identicon generation code from Android-Identicons

Source: https://github.com/saiimons/Android-Identicons
License: Apache License, Version 2.0

briar-android/src/im/delight/android/identicons/IdenticonDrawable.java

@@ -0,0 +1,85 @@
+package im.delight.android.identicons;
+
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.ColorFilter;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.util.Log;
+
+/**
+ * Created by saiimons on 05/10/14.
+ */
+public class IdenticonDrawable extends Drawable {
+    private IdenticonBase mDelegate;
+
+    private static final int CENTER_COLUMN_INDEX = 3;
+
+    public IdenticonDrawable(String toShow) {
+        super();
+        mDelegate = new IdenticonBase() {
+            @Override
+            protected int getRowCount() {
+                return 5;
+            }
+
+            @Override
+            protected int getColumnCount() {
+                return 5;
+            }
+
+            @Override
+            protected boolean isCellVisible(int row, int column) {
+                return getByte(3 + row * CENTER_COLUMN_INDEX + getSymmetricColumnIndex(column)) >= 0;
+            }
+
+            @Override
+            protected int getIconColor() {
+                return Color.rgb(getByte(0) + 128, getByte(1) + 128, getByte(2) + 128);
+            }
+        };
+        mDelegate.show(toShow);
+    }
+
+    @Override
+    public void setBounds(Rect bounds) {
+        super.setBounds(bounds);
+        Log.d("IDENTICON", "SIZE : " + (bounds.right - bounds.left) + " " + (bounds.bottom - bounds.top));
+        mDelegate.updateSize(bounds.right - bounds.left, bounds.bottom - bounds.top);
+    }
+
+    @Override
+    public void setBounds(int left, int top, int right, int bottom) {
+        super.setBounds(left, top, right, bottom);
+        mDelegate.updateSize(right - left, bottom - top);
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        Log.d("IDENTICON", "DRAW IN PROGRESS");
+        mDelegate.draw(canvas);
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter cf) {
+
+    }
+
+    @Override
+    public int getOpacity() {
+        return 0;
+    }
+
+    protected int getSymmetricColumnIndex(int row) {
+        if (row < CENTER_COLUMN_INDEX) {
+            return row;
+        } else {
+            return mDelegate.getColumnCount() - row - 1;
+        }
+    }
+}