package jp.wasabeef.picasso.transformations;

/**
 * Copyright (C) 2015 Wasabeef
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import com.squareup.picasso.Transformation;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.RectF;

public class CropTransformation implements Transformation {

    private int mWidth;
    private int mHeight;
    private CropType mCropType;

    public CropTransformation() {
        mCropType = CropType.CENTER;
    }

    public CropTransformation(int width, int height) {
        this();
        mWidth = width;
        mHeight = height;
    }
    
    public CropTransformation(int width, int height, CropType cropType) {
		mWidth = width;
		mHeight = height;
		mCropType = cropType;
	}

    @Override
    public Bitmap transform(Bitmap source) {
        if (mWidth == 0) {
            mWidth = source.getWidth();
        }
        if (mHeight == 0) {
            mHeight = source.getHeight();
        }

        float scaleX = (float) mWidth / source.getWidth();
        float scaleY = (float) mHeight / source.getHeight();
        float scale = Math.max(scaleX, scaleY);

        float scaledWidth = scale * source.getWidth();
        float scaledHeight = scale * source.getHeight();
        float left = (mWidth - scaledWidth) / 2;
        float top = getTop(scaledHeight);
        RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);

        Bitmap bitmap = Bitmap.createBitmap(mWidth, mHeight, source.getConfig());
        Canvas canvas = new Canvas(bitmap);
        canvas.drawBitmap(source, null, targetRect, null);
        source.recycle();

        return bitmap;
    }

    @Override
    public String key() {
        return "CropTransformation(width=" + mWidth + ", height=" + mHeight + ")";
    }

	private float getTop(float scaledHeight) {
		switch (mCropType) {
			case TOP:
				return 0;
			case CENTER:
				return (mHeight - scaledHeight) / 2;
			case BOTTOM:
				return mHeight - scaledHeight;
			default:
				return 0;
		}
	}

	public enum CropType {
		TOP,
		CENTER,
		BOTTOM
	}
}

@@ -2318,17 +2318,20 @@
 %0A    %7D%0A%0A
-%09
+    
 private 
@@ -2365,18 +2365,24 @@
 ight) %7B%0A
-%09%09
+        
 switch (
@@ -2396,17 +2396,16 @@
 pe) %7B%0A%09%09
-%09
 case TOP
@@ -2406,17 +2406,16 @@
 se TOP:%0A
-%09
 %09%09%09retur
@@ -2417,25 +2417,24 @@
 return 0;%0A%09%09
-%09
 case CENTER:
@@ -2434,17 +2434,16 @@
 CENTER:%0A
-%09
 %09%09%09retur
@@ -2474,17 +2474,16 @@
 t) / 2;%0A
-%09
 %09%09case B
@@ -2488,25 +2488,24 @@
  BOTTOM:%0A%09%09%09
-%09
 return mHeig
@@ -2523,17 +2523,16 @@
 Height;%0A
-%09
 %09%09defaul
@@ -2537,17 +2537,16 @@
 ult:%0A%09%09%09
-%09
 return 0
@@ -2551,17 +2551,22 @@
  0;%0A
-%09
 %09%7D%0A
-%09%7D%0A%0A%09
+    %7D%0A%0A    
 publ

Update CropTransformation.java