_click _initialize addShape backStep cancel click draw dynshape gatherShapes getLastSnappedOriginPoint getLastSnappedPoint getMaxStep getShape getShapeType getSnappedType getStep ignoreStartPoint initialize isDrawingCommand isStepPointAccepted longPress m_flags m_lastSnapped m_shape m_step MgCommandDraw mouseHover setStep setStepPoint snapOptionsForStep snapPoint snapPoint snapPoint snapPointWidhOptions touchBegan touchBeganStep touchEnded touchEndedStep touchMoved touchMovedStep ~MgCommandDraw

getSnappedType() int MgCommandDraw::getSnappedType ( const MgMotion *  sender ) const 返回当前捕捉结果类型, >=kMgSnapGrid 函数调用图: 这是这个函数的调用关系图: