Rounded corners in Picasso

gistfile1.java

package com.nucleartide.gourmet.app.ui.picasso;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.util.Log;

import com.squareup.picasso.Transformation;

public class Rounded implements Transformation {
  private final int radius;
  private final Corners corners;

  public enum Corners {
    TOP(0x8),  // binary: 1000
    BOTTOM(0x4),  // binary: 0100
    LEFT(0x2),  // binary: 0010
    RIGHT(0x1),  // binary: 0001
    TOP_LEFT(0xA),  // binary: 1010
    TOP_RIGHT(0x9),  // binary: 1001
    BOTTOM_LEFT(0x6),  // binary: 0110
    BOTTOM_RIGHT(0x5),  // binary: 0101
    ALL(0xF);  // binary: 1111

    private int code;

    private Corners(int code) {
      this.code = code;
    }

    public int getCode() {
      return code;
    }
  }

  public Rounded(int radius, Corners corners) {
    Log.d("Rounded", "New Rounded transformation being constructed");
    this.radius = radius;
    this.corners = corners;
  }

  @Override public Bitmap transform(Bitmap source) {
    assert radius > 0;
    int w = source.getWidth();
    int h = source.getHeight();
    Bitmap output = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, w, h);
    final RectF rectF = new RectF(rect);
    final float roundPx = radius;

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);  // Zero everything out, I guess.
    paint.setColor(color);  // Grayish.
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);  // Grayish round rect.

    // Draw selected rounded corners only.
    // This turns unwanted rounded corners into square corners.
    boolean top = (corners.getCode() & Corners.TOP.getCode()) > 0;
    boolean bottom = (corners.getCode() & Corners.BOTTOM.getCode()) > 0;
    boolean left = (corners.getCode() & Corners.LEFT.getCode()) > 0;
    boolean right = (corners.getCode() & Corners.RIGHT.getCode()) > 0;
    Log.d("Rounded", "top: " + String.valueOf(top) + ", " +
        "bottom: " + String.valueOf(bottom) + ", " +
        "left: " + String.valueOf(left) + ", " +
        "right: " + String.valueOf(right)
    );
    assert !(left || right);
    assert !(top || bottom);
    canvas.drawRect(left ? roundPx : 0,
                    top ? roundPx : 0,
                    right ? w - roundPx : w,
                    bottom ? h - roundPx : h,
                    paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(source, rect, rect, paint);

    source.recycle();
    return output;
  }

  @Override public String key() {
    return "rounded();";
  }
}

Can you tell me how to set rounded corner only for TOP_LEFT and TOP_RIGHT ? and can u tell me how to pass Corners as a argument ?