backStep canAddPoint cancel checkClosed click Create doubleClick draw initialize m_index MgCmdDrawLines Name needCheckClosed needEnded release touchBegan touchEnded touchMoved ~MgCmdDrawLines

doubleClick() bool MgCmdDrawLines::doubleClick ( const MgMotion *  sender ) privatevirtual 双击 实现了 MgCommand. 函数调用图: 这是这个函数的调用关系图: