backStep canAddPoint cancel click Create draw initialize m_freehand MgCmdDrawSplines mouseHover Name release touchBegan touchEnded touchMoved ~MgCmdDrawSplines

click() bool MgCmdDrawSplines::click ( const MgMotion *  sender ) privatevirtual 重载 MgCommandDraw . 函数调用图: 这是这个函数的调用关系图: