#ifndef _FACTOR_HPP_
#define _FACTOR_HPP_
#include <mdiwin/dwindow.hpp>
#include <mdiwin/vector.hpp>
#include <mdiwin/block.hpp>
#include <mdiwin/string.hpp>

class Factor : public DWindow
{
public:
	enum Type{Incremental,NonIncremental};
	enum Operation{Add,Subtract,Multiply,Divide,None};
	Factor(HWND hParent,const char *caption);
	~Factor();
	WORD showFactor(double &widthFactor,double &heightFactor);
	WORD showFactor(double &widthFactor,double &heightFactor,
	double &widthIncremental,Operation &widthOperation,
	double &heightIncremental, Operation &heightOperation);
private:
	enum{MaxCaption=70};
	virtual int DlgProc(UINT message,WPARAM wParam,LPARAM lParam);
	void initializeStrings(void);
	void currentOperation(WORD stringIndex,Operation &operation)const;

	HWND mhParent;
	HINSTANCE mhInstance;
	char mCaption[MaxCaption];
	double mWidthFactor;
	double mWidthIncremental;
	Operation mWidthOperation;
	double mHeightFactor;
	double mHeightIncremental;
	Operation mHeightOperation;
	Type mFactorType;
	Block<String> mWidthStrings;
	Block<String> mHeightStrings;
	WORD mWidthStringIndex;
	WORD mHeightStringIndex;
};
#endif