public void setShapeType(ShapeType shapeType) {
        mShapeType = shapeType;
        invalidate();
    }
Set horizontal size of wave according to <code>waveLengthRatio</code>

@param waveLengthRatio Default to be 1.
                       Ratio of wave length to width of WaveView.
library/src/main/java/com/gelitenight/waveview/library/WaveView.java