/*
 *  iGeometry.h
 *  2Term
 *
 *  Created by Kelvin Sherlock on 7/7/2010.
 *  Copyright 2010 __MyCompanyName__. All rights reserved.
 *
 */

#ifndef __IGEOMETRY_H__
#define __IGEOMETRY_H__


#ifdef __cplusplus
#define equal_zero = 0
#else
#define equal_zero
#endif

typedef struct iSize {
    
    int width equal_zero;
    int height equal_zero;
    
#ifdef __cplusplus
    iSize() = default;
    iSize(const iSize &) = default;
    iSize(int w, int h) : width(w), height(h) {} 
    
    iSize &operator=(const iSize &) = default;

    bool operator==(const iSize &aSize)
    { return width == aSize.width && height == aSize.height; }
    
    bool operator!=(const iSize& aSize)
    { return !(*this == aSize); }
#endif
    
} iSize;


typedef struct iPoint {
    
    int x equal_zero;
    int y equal_zero;
    
#ifdef __cplusplus
    iPoint() = default;
    iPoint(const iPoint &aPoint) = default;
    iPoint(int xx, int yy) : x(xx), y(yy) {} 
    
    iPoint &operator=(const iPoint &) = default;
    
    bool operator==(const iPoint &aPoint)
    { return x == aPoint.x && y == aPoint.y; }
    
    bool operator!=(const iPoint &aPoint)
    { return !(*this == aPoint); }
    
    iPoint offset(int dx, int dy) const
    { return iPoint(x + dx, y + dy); }
    
    iPoint offset(iSize aSize) const
    { return iPoint(x + aSize.width, y + aSize.height); }
        
#endif
    
} iPoint;



typedef struct iRect {
    iPoint origin;
    iSize size;
    
#ifdef __cplusplus
    iRect() = default;
    iRect(const iRect &aRect) = default;
    iRect(const iPoint &aPoint, const iSize &aSize) : origin(aPoint), size(aSize) {}
    iRect(int x, int y, int width, int height) : origin(iPoint(x, y)), size(iSize(width, height)) {}
    
    iRect &operator=(const iRect &) = default;
    
    bool contains(const iPoint aPoint) const;
    bool contains(const iRect aRect) const;
    
    bool intersects(const iRect aRect) const;
    
    
    int height() const
    { return size.height; }
    
    int width() const
    { return size.width; }
    
    int minX() const
    { return origin.x; }
    
    int minY() const
    { return origin.y; }
    
    int maxX() const
    { return minX() + width(); }
    
    int maxY() const
    { return minY() + height(); }
        
    
#endif
    
} iRect;

#undef equal_zero

#endif