_click _initialize addShape backStep cancel click draw dynshape gatherShapes getLastSnappedOriginPoint getLastSnappedPoint getMaxStep getShape getShapeType getSnappedType getStep ignoreStartPoint initialize isDrawingCommand isStepPointAccepted longPress m_flags m_lastSnapped m_shape m_step MgCommandDraw mouseHover setStep setStepPoint snapOptionsForStep snapPoint snapPoint snapPoint snapPointWidhOptions touchBegan touchBeganStep touchEnded touchEndedStep touchMoved touchMovedStep ~MgCommandDraw

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