wrkcoord.h

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// $Id: wrkcoord.h 1285 2006-06-09 11:10:27Z alex $
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 */

/*
 *  */

/*********************************************************************************************

>   class WorkCoord

    Author:     Mario_Shamtani (Xara Group Ltd) <camelotdev@xara.com>
    Created:    10/5/1993          
    Purpose:    Structure holding a 64-bit cartesian coordinate.
                Its main use is to hold the coordinates of scrolled objects in CCamView.
    Errors:     None.



*********************************************************************************************/

#ifndef INC_WRKCOORD
#define INC_WRKCOORD

#include "ccmaths.h"                        // for XLONG
#include "coord.h"                          // for Coord

class OSCoord;
class OilCoord;

class CCAPI WorkCoord
{
public:
    XLONG x;
    XLONG y;

    WorkCoord() { };
    WorkCoord( INT32 x, INT32 y);
    WorkCoord( XLONG x, XLONG y);

    OilCoord ToOil(const WorkCoord& scrollOffset);
    void ToOil(const WorkCoord& scrollOffset, OilCoord *result);

    WorkCoord& operator=(const Coord&);
    friend WorkCoord operator-(const WorkCoord&);

    WorkCoord Pixelise(double pixwidthx, double pixwidthy) {return WorkCoord(
        (INT64)((floor(0.5 + (double)x / pixwidthx)) * pixwidthx),
        (INT64)((floor(0.5 + (double)x / pixwidthy)) * pixwidthy)
        );}
};

/********************************************************************************************

>   WorkCoord::WorkCoord( XLONG x, XLONG y )

>   WorkCoord::WorkCoord( INT32 x, INT32 y )

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/5/93
    Inputs:     x and y positions, as ints or XLONGs
    Outputs:    None
    Purpose:    Constructor that can initialise elements
    Errors:     None

********************************************************************************************/

inline WorkCoord::WorkCoord( XLONG initialX, XLONG initialY )
{
    x = initialX;
    y = initialY;
}

inline WorkCoord::WorkCoord( INT32 initialX, INT32 initialY )
{
    x = (XLONG) initialX;
    y = (XLONG) initialY;
}


/********************************************************************************************

>   WorkCoord& WorkCoord::operator=(const Coord& input)

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/5/93
    Inputs:     A Coord
    Outputs:    A WorkCoord
    Purpose:    Safe casting between types using operator overloading.
    Errors:     None

********************************************************************************************/


inline WorkCoord& WorkCoord::operator=(const Coord& input)
{
    this->x = input.x;
    this->y = input.y;

    return *this;
}

/********************************************************************************************

>   WorkCoord& operator-(const WorkCoord& input)

    Author:     Mario_Shamtani (Xara Group Ltd) <camelotdev@xara.com>
    Created:    14/6/93
    Inputs:     A WprkCoord
    Outputs:    A WorkCoord
    Purpose:    Negates a WorkCoord.
    Errors:     None

********************************************************************************************/

inline WorkCoord operator-(const WorkCoord& input)
{
    WorkCoord result;

    result.x = -input.x;
    result.y = -input.y;
    return result;
}


#endif

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