reset method

void reset()

Implementation

void reset() {
  _mScale = 1;
  _mLastScale = 1;
  _mScaleOffsetX = 0;
  _mLastScaleOffsetX = 0;
  _mScaleCenterPoint = Offset.zero;
  _mPressOffset;
  _mScrollX = 0;
  _mExtentWidth = 0;
  _mInnerWidth = 0;
}