builder.h

图形软件,用QT编写的,可以用来学习软件的

/*****************************************************************************
*******************************************************************************
**                                                                           **
**    equal III the graphic builder                                          **
**                                                                           **
**    Copyright (C) 2003 Oleksiy Pylypenko                                   **
**                                                                           **
** This file may be distributed and/or modified under the terms of the       **
** GNU General Public License version 2 as published by the Free Software    **
** Foundation and appearing in the file license included in the              **
** packaging of this file.                                                   **
**                                                                           **
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE   **
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. **
**                                                                           **
** Contact [e-mail] if any conditions of this licensing are         **
** not clear to you.                                                         **
**                                                                           **
**                                                                           **
*******************************************************************************
 *****************************************************************************/

#ifndef _BUILDER_H_
#define _BUILDER_H_

#include "equalcalc.h"


class GraphicBuilder{
	EqualCalculator calculator;
	double mathx,mathy;
public:
	class errDefineFunction{};
	class errSignError{};
	// possibly it's better to make
	// it a template.
	// in library version it'll be
	// needed for sure
	typedef struct{
		double top,left,right,bottom;
	}DoubleRect;

	typedef struct{
		unsigned int info;
	}ImageInfo;

	ImageInfo *image;
	ImageInfo background;
	char *mask;
	DoubleRect scale;
	int width,height;
	
	void MakeADefinition(string command);
	void DefineAVariable(string name,double *value);
	void DrawSystem(string system,ImageInfo info);


	void Init(void);
	void Free(void);
	GraphicBuilder(void);
	~GraphicBuilder();
};

#endif //_BUILDER_H_