region.h

// This software is distributed as part of the Improla library. 
// Improla is a GUI framework for image processing.
// 
// Copyright (c) 2004, B. R. Siva Chandra, India
//
// 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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
// In case you would like to contact the author, use the following e-mail
// address: sivachandra_br@yahoo.com

#ifndef __REGION_H__
#define __REGION_H__

#include <point.h>
#include <stdio.h>

namespace gutk
{ // Start of namespace brace.

class PointNode
{
public:
    PointNode(const gutk::Point &p);
    
    PointNode(double n, double m);
    
    gutk::Point point;
    
    PointNode *nextPoint;
    
    PointNode *prevPoint;
};  

class Region 
{
public:
    Region(void);
    
    Region(const Region &r);
    
    ~Region();
    
    void addPoint(const gutk::Point &p);
    
    void addPoint(double n, double m);
    
    /* To be implemented.
    void deletePoint(int l);
    */
    
    void pop(void);
    
    gutk::Point getPoint(void);
    
    void refresh(void);
    
    int getSize(void);
    
    gutk::Point getLastPoint(void);
    
    void destroy(void);
    
    void operator=(const Region &r);
     
private:
    int *size, *refCount;
    PointNode *firstPoint, *currentPoint, *lastPoint;
    
};    
    
} // End of namespace brace.

#endif // __REGION_H__

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