private void OnStartScale(RectangleTool.ToolCoord pivotCoord, RectangleTool.ToolCoord pickedCoord, Vector2 mousePos, DragMode dragMode, bool rippleTime)
{
Bounds selectionBounds = this.selectionBounds;
this.m_DragMode = dragMode;
this.m_Pivot = base.ToolCoordToPosition(pivotCoord, selectionBounds);
this.m_Previous = base.ToolCoordToPosition(pickedCoord, selectionBounds);
this.m_MouseOffset = mousePos - this.m_Previous;
this.m_RippleTime = rippleTime;
this.m_RippleTimeStart = selectionBounds.min.x;
this.m_RippleTimeEnd = selectionBounds.max.x;
this.m_CurveEditor.StartLiveEdit();
}