_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

touchBegan() virtual bool MgCommand::touchBegan ( const MgMotion *  sender ) virtual 开始滑动 在 MgCmdDrawDot, MgCmdSelect, MgCommandDraw, MgCmdDrawCircle3P, MgCmdDrawLines, MgCmdErase, MgCmdDrawSplines, MgCmdDrawFreeLines, MgCmdDrawLine, MgCmdDrawRect, MgCmdDrawGrid, MgCmdArc3P, MgCmdParallel , 以及 MgCmdDrawTriangle 内被实现. 这是这个函数的调用关系图: