--- queensgui/src/solution.h	2007/07/19 23:44:01	4
+++ queensgui/src/solution.h	2007/07/20 01:22:53	5
@@ -28,31 +28,26 @@
 class Solution 
 {
 public:
+	virtual ~Solution() {}
 
-
-	// functions
-	Solution(int size=8);
-	Solution(const Solution &input);
-	~Solution();
-
-	void set(bool input[MAX_SIZE][MAX_SIZE]);
-	void rotate90();
-	void mirror();
+	virtual void rotate90() = 0;
+	virtual void mirror() = 0;
 	
-	Solution* copy();
-
-	bool operator==(const Solution& sol);
-	bool operator!=(const Solution& sol);
-	bool getMatrix(int x, int y);
-	void setMatrix(int x, int y, bool val);
+	virtual Solution* copy() = 0;
 
+	virtual bool operator==(const Solution& sol) = 0;
+	//virtual bool operator!=(const Solution& sol) = 0;
+	virtual bool getMatrix(int x, int y) = 0;
+	virtual void setMatrix(int x, int y, bool val) = 0;
 
 	int size() {return m_size;};
 	void setSize(int size) {m_size = size;};
 	
+	void print();
+	void print(bool debug, int row, int col);
 protected:
-	bool m_matrix[MAX_SIZE][MAX_SIZE];
 	int m_size;
+	Solution& operator=(Solution& s);
 };
 
 #endif