class BackgroundWithShadowDrawable(context: Context) : Drawable() {
    private val paint = Paint()
    private var pointer = BitmapFactory.decodeResource(context.resources, R.drawable.banner)
    private val margin: Float = context.resources.getDimension(R.dimen.balance_my_purchases_margin)
    private val bottomMargin: Float = context.resources.getDimension(R.dimen.notification_margin)
    private val cornerRadius: Float = context.resources.getDimension(R.dimen.notification_corner_radius)

    init {
        paint.apply { setARGB(255, 255, 255, 255); setShadowLayer(margin, 0f, 0f, Color.parseColor("#4c000000")); }

        val matrix = Matrix()

        matrix.postRotate(180f)

        pointer = Bitmap.createBitmap(pointer, 0, 0, pointer.width, pointer.height, matrix, true)
    }

    override fun setAlpha(alpha: Int) {
        paint.alpha = alpha
    }

    override fun getOpacity(): Int {
        return PixelFormat.TRANSLUCENT
    }

    override fun setColorFilter(colorFilter: ColorFilter?) {
        paint.colorFilter = colorFilter
    }

    override fun draw(canvas: Canvas?) {
        canvas?.drawRoundRect(RectF(margin, margin / 2, bounds.width() - margin, bounds.height() - bottomMargin), cornerRadius, cornerRadius, paint)

        canvas?.drawBitmap(pointer, ((bounds.width() / 2) - bottomMargin * 1.5f), bounds.height() - bottomMargin,
                Paint().apply {
                    setARGB(255, 255, 255, 255)
                    setShadowLayer(margin * 3, 0f, 0f, Color.BLACK)
                })

    }
}