docs: @Override
      protected void onSizeChanged(int w, int h, int oldw, int oldh) {
          super.onSizeChanged(w, h, oldw, oldh);
  
          mUsableGraphHeight = (int) (mGraphHeight - mGraphHeightPadding);
  
          onDataChanged();
          if(mUseCustomLegend) {
              onLegendDataChanged();
          }
      }