debug/src/zoomwindow.h

/***************************************************************************
                          floatrect.h  -  description
                             -------------------
    begin                : Thu Aug 21 2003
    copyright            : (C) 2003 by 
    email                : 
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef FLOATRECT_H
#define FLOATRECT_H

#include <qrect.h>
#include <qpoint.h>
#include <math.h>

class ZoomWindow {

public: 

  ZoomWindow(const QRect& rect);
  ~ZoomWindow();
operator QRect() const;

bool zoom(float factor, float centerX, float centerY);


inline bool zoom(float factor, const QPoint& center){
  return zoom(factor, center.x(), center.y());
};


bool zoom(int firstClickX, int firstClickY, int secondClickX, int secondClickY);

inline bool zoom(QPoint firstPoint, QPoint secondPoint) {
   return zoom(firstPoint.x(), firstPoint.y(), secondPoint.x(), secondPoint.y());
};

protected:
void correctWindow();


private:
float left;
float right;
float bottom;
float top;


float initialLeft;
float initialRight;
float initialBottom;
float initialTop;

static const float MIN_SCALE;

static const float MAX_SCALE;

public:

inline void reset(){
 left   = initialLeft;
 right  = initialRight;
 top    = initialTop;
 bottom = initialBottom;
};

};


#endif

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