MAKE

Make/sudoku/command.cpp

@@ -0,0 +1,36 @@
+#include "scene.h"
+#include "command.h"
+
+CCommand::CCommand(CScene *pOwner) : _pOwner(pOwner)
+{}
+
+CCommand::CCommand(CScene *pOwner, const point_t &point, int preValue, int curValue)
+    : _pOwner(pOwner), _stPoint(point), _nPreValue(preValue), _nCurValue(curValue) {}
+
+CCommand::CCommand(const CCommand &rhs)
+: _pOwner(rhs._pOwner)
+, _stPoint(rhs._stPoint)
+, _nPreValue(rhs._nPreValue)
+, _nCurValue(rhs._nCurValue)
+{}
+
+CCommand::~CCommand(){}
+
+bool CCommand::execute(int nInputValue)
+{
+    if (!_pOwner)
+        return false;
+
+    _stPoint = _pOwner->getCurPoint();
+    return _pOwner->setCurValue(nInputValue, _nPreValue);
+}
+
+void CCommand::undo()
+{
+    if (_pOwner)
+    {
+        _pOwner->setPointValue(_stPoint, _nPreValue);
+    }
+
+    return;
+}