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

draw() bool MgCmdDrawLines::draw ( const MgMotion *  sender, GiGraphics *  gs  ) privatevirtual 显示动态图形 重载 MgCommandDraw . 函数调用图: 这是这个函数的调用关系图: