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36 lines
752 B
C++
36 lines
752 B
C++
#include "scene.h"
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#include "command.h"
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CCommand::CCommand(CScene *pOwner) : _pOwner(pOwner)
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{}
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CCommand::CCommand(CScene *pOwner, const point_t &point, int preValue, int curValue)
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: _pOwner(pOwner), _stPoint(point), _nPreValue(preValue), _nCurValue(curValue) {}
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CCommand::CCommand(const CCommand &rhs)
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: _pOwner(rhs._pOwner)
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, _stPoint(rhs._stPoint)
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, _nPreValue(rhs._nPreValue)
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, _nCurValue(rhs._nCurValue)
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{}
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CCommand::~CCommand(){}
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bool CCommand::execute(int nInputValue)
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{
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if (!_pOwner)
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return false;
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_stPoint = _pOwner->getCurPoint();
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return _pOwner->setCurValue(nInputValue, _nPreValue);
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}
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void CCommand::undo()
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{
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if (_pOwner)
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{
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_pOwner->setPointValue(_stPoint, _nPreValue);
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}
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return;
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} |