/**
 * Created by graeme.castle on 02/07/2015.
 */
public class CircleImageView extends ImageView {

    private static final int CIRCLE_RADIUS = 5;

    public CircleImageView(Context context) {
        super(context);
    }

    public CircleImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        if (getDrawable() == null) {
            return;
        }

        if (getWidth() == 0 || getHeight() == 0) {
            return;
        }

        Bitmap b =  ((BitmapDrawable)getDrawable()).getBitmap() ;
        Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);
        bitmap = Bitmap.createScaledBitmap(bitmap, getWidth(), getHeight(), true /* filter */);

        BitmapShader shader;
        shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);

        Paint paint = new Paint();
        paint.setAntiAlias(true);
        paint.setShader(shader);

        RectF iconRect = new RectF(CIRCLE_RADIUS, CIRCLE_RADIUS, getWidth()-CIRCLE_RADIUS, getHeight()-CIRCLE_RADIUS);

        Paint whitePaint = new Paint();
        whitePaint.setColor(0xFFFFFFFF);
        whitePaint.setAntiAlias(true);
        canvas.drawCircle((getWidth()/2), (getHeight() / 2), (getWidth()/2), whitePaint);

        // rect contains the bounds of the shape
        // radius is the radius in pixels of the rounded corners
        // paint contains the shader that will texture the shape
        canvas.drawRoundRect(iconRect, (getWidth()/ 2) - CIRCLE_RADIUS, (getHeight() / 2) -CIRCLE_RADIUS, paint);
    }
}