_name backStep cancel click doContextAction doubleClick draw drawAngleText drawAngleText gatherShapes getName getSelectedIDs getShape initialize initializeWithSelection isDrawingCommand isFloatingCommand longPress MgCommand MgCommand mouseHover release touchBegan touchEnded touchMoved twoFingersMove ~MgCommand

doubleClick() virtual bool MgCommand::doubleClick ( const MgMotion *  sender ) virtual 双击 在 MgCmdSelect , 以及 MgCmdDrawLines 内被实现. 这是这个函数的调用关系图: