CropFromTopTransformation.kt

import android.graphics.Bitmap
import timber.log.Timber

/**
 * Picasso transformation to Crop an image from top.
 * Created by Gaurav Vashisth on 20/10/17.
 */

class CropFromTopTransformation constructor(private val cropDistance: Int): com.squareup.picasso.Transformation {

    override fun transform(source: Bitmap): Bitmap {
        val width = source.width
        val height = source.height

        val clipImage = Bitmap.createBitmap(source,  0,  cropDistance, width, height - cropDistance);

        if (source != clipImage) {
            source.recycle()
        }
        return clipImage
    }

    override fun key(): String {
        return "CropFromTopTransformation" + cropDistance
    }
}