brpress.cpp

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// $Id: brpress.cpp 1282 2006-06-09 09:46:49Z alex $
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 */

// brush pressure classes implementation

#include "camtypes.h"
#include "brpress.h"
//#include "cxfrec.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "pen.h"
#include "ndbldpth.h"

CC_IMPLEMENT_MEMDUMP(PressureItem, CCObject);

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

>   PressureItem::PressureItem(UINT32 Pressure, double Proportion, MILLIPOINT Distance)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/1/97
    Inputs:     Pressure - the pressure value
                Proportion - the proportional distance along the path
                Distance - the absolute distance along the path
    Purpose:    constructor with initialisation
                
    Notes:      
********************************************************************************************/

PressureItem::PressureItem(UINT32 Pressure, double Proportion, MILLIPOINT Distance)
{
    m_Pressure = Pressure;
    m_Proportion = Proportion;
    m_Distance = Distance;
}

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

>   PressureItem::PressureItem(PressureItem& Other)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/1/97
    Inputs:     Other
    Purpose:    copy constructor
                
    Notes:      
********************************************************************************************/

PressureItem::PressureItem(const PressureItem& Other)
{
    m_Pressure = Other.m_Pressure;
    m_Proportion = Other.m_Proportion;
    m_Distance = Other.m_Distance;
}


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

>   PressureItem::PressureItem(PressureItem& Other)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/1/97
    Inputs:     Other
    Purpose:    copy constructor
                
    Notes:      
********************************************************************************************/

PressureItem PressureItem::operator =(const PressureItem& Other)
{
    m_Pressure = Other.m_Pressure;
    m_Proportion = Other.m_Proportion;
    m_Distance = Other.m_Distance;

    return *this;
}


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

>   PressureItem::WorkOutProportion(MILLIPOINT PathLength)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     length of the path that this object is on
    Purpose:    calculates how far along the path we are and sets the member variable

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

void PressureItem::WorkOutProportion(MILLIPOINT PathLength)
{
    if (m_Distance < 0 || m_Distance > PathLength)
    {
        ERROR3("Attempting to calculate proportional distance with invalid data");
        TRACEUSER( "Diccon", _T("Invalid distance: %d, Path Length: %d\n"), m_Distance, PathLength );
        m_Proportion = 1.0;
        return;
    }
    m_Proportion = (double)((double)m_Distance / (double)PathLength);
    //if (m_Proportion < 0)
//  TRACEUSER( "Diccon", _T("Proportion: %f\n"), m_Proportion);

}

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


>   BOOL PressureItem::WriteNative(BaseCamelotFilter *pFilter)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99
    Inputs:     pFilter - filter to write to
    Returns:    TRUE if the Node has written out a record to the filter
    Purpose:    Writes out a record of this PressureItem to the record supplied.  Note that because
                PressureItems are generally part of a larger object they do not have their own tag etc.
                This function is merely a convenience function.

    SeeAlso:    AttrBrushType::WritePreChildrenNative; BrushAttrRecordHandler::HandleRecord

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

BOOL PressureItem::WriteNative(CXaraFileRecord* pRecord)
{
    ERROR2IF(pRecord == NULL, FALSE, "Record is NULL in PressureItem::WriteNative");
    
    BOOL ok = pRecord->WriteINT32((INT32)m_Pressure);
    if (ok) ok = pRecord->WriteDOUBLE(m_Proportion);
    if (ok) ok = pRecord->WriteINT32(m_Distance);

    return ok;
}





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

>   BrushPointInfo::BrushPointInfo()

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     -
    Purpose:    Default Constuctor for BrushPointInfo

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

BrushPointInfo::BrushPointInfo()
{
    m_Pressure = MAXPRESSURE / 2;
    m_Tangent = 0.0;
    m_Point = DocCoord(0, 0);
}


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

>   BrushPointInfo::BrushPointInfo(DocCoord Point, double Tangent, UINT32 Pressure)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     -
    Purpose:    initialising Constuctor for BrushPointInfo

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

BrushPointInfo::BrushPointInfo(DocCoord Point, double Tangent, UINT32 Pressure)
{
    m_Point = Point;
    m_Tangent = Tangent;
    m_Pressure = Pressure;
}


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

>   BrushPointInfo BrushPointInfo::operator=(BrushPointInfo &Other)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     -
    Purpose:    initialising Constuctor for BrushPointInfo

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

BrushPointInfo& BrushPointInfo::operator =(BrushPointInfo &Other)
{
    m_Point = Other.m_Point;
    m_Tangent = Other.m_Tangent;
    m_Pressure = Other.m_Pressure;

    return *(this);
}


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

>   TimeStampBrushPoint::TimeStampBrushPoint()

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     -
    Purpose:    Default Constuctor for TimeStampBrushPoint

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

TimeStampBrushPoint::TimeStampBrushPoint() : BrushPointInfo()
{
    m_Distance = -1;
    m_Proportion = -1;
}


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

>   TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     -
    Purpose:    Constuctor for TimeStampBrushPoint

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

TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo PathInfo)
{
    m_Point = PathInfo.m_Point;
    m_Tangent = PathInfo.m_Tangent;
    m_Distance = -1;
    m_Proportion = -1;
}

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

>   TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     -
    Purpose:    Constuctor for TimeStampBrushPoint

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

TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo PathInfo, MILLIPOINT Distance)
{
    m_Point = PathInfo.m_Point;
    m_Tangent = PathInfo.m_Tangent;
    m_Distance = Distance;
    m_Proportion = -1;
}


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

>   TimeStampBrushPoint::TimeStampBrushPoint(DocCoord Point, double Tangent, MILLIPOINT Distance)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     -
    Purpose:    Constuctor for TimeStampBrushPoint

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

TimeStampBrushPoint::TimeStampBrushPoint(DocCoord Point, double Tangent, MILLIPOINT Distance)
{
    m_Point = Point;
    m_Tangent = Tangent;
    m_Distance = Distance;
}

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

>   TimeStampBrushPoint TimeStampBrushPoint::operator=(TimeStampBrushPoint Other)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     Other - the TSBP to assign
    Purpose:    assignment operator
********************************************************************************************/

TimeStampBrushPoint TimeStampBrushPoint::operator=(TimeStampBrushPoint Other)
{
    m_Point = Other.m_Point;
    m_Tangent = Other.m_Tangent;
    m_Distance = Other.m_Distance;
    m_Proportion = Other.m_Proportion;

    return *this;
}

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

>   TimeStampBrushPoint::WorkOutProportion(MILLIPOINT PathLength)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99

    Inputs:     length of the path that this object is on
    Purpose:    calculates how far along the path we are and sets the member variable

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

void TimeStampBrushPoint::WorkOutProportion(MILLIPOINT PathLength)
{
    if (m_Distance < 0 || m_Distance > PathLength)
    {
    //  ERROR3("Attempting to calculate proportional distance with invalid data");
        TRACEUSER( "Diccon", _T("Invalid distance: %d, Path Length: %d\n"), m_Distance, PathLength );
        m_Proportion = 1.0;
        return;
    }
    m_Proportion = (double)((double)m_Distance / (double)PathLength);
    //if (m_Proportion < 0)
//  TRACEUSER( "Diccon", _T("Proportion: %f\n"), m_Proportion);

}


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

>   static INT32 TimeStampBrushPoint::ComparePointInfo(void* Point1, void* Point2)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    6/10/99
    Inputs:     Point1, Point2- the distances to be compared
    Returns:    -1, if Dist1 < Dist2
                0 , if Dist1 == Dist2
                1, if Dist1 > Dist2
    Purpose:    Compares the two points by their distances, note that they are specified as void*
                so that I can supply this fn.to qsort
    SeeAlso:    -

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

INT32 TimeStampBrushPoint::ComparePointInfo(const void* Point1, const void* Point2)
{
    TimeStampBrushPoint* pPoint1 = (TimeStampBrushPoint*)Point1;
    TimeStampBrushPoint* pPoint2 = (TimeStampBrushPoint*)Point2;
    
    if (pPoint1->m_Distance < pPoint2->m_Distance)
        return -1;
    if (pPoint1->m_Distance > pPoint2->m_Distance)
        return 1;

    return 0;
}

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


>   BOOL TimeStampBrushPoint::WriteNative(BaseCamelotFilter *pFilter)

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/12/99
    Inputs:     pFilter - filter to write to
    Returns:    TRUE if the Node has written out a record to the filter
    Purpose:    Writes out a record of this TSBP to the record supplied.  Note that because
                TSBPs are generally part of a larger object they do not have their own tag etc.
                This function is merely a convenience function.

    SeeAlso:    AttrBrushType::WritePreChildrenNative; BrushAttrRecordHandler::HandleRecord

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

BOOL TimeStampBrushPoint::WriteNative(CXaraFileRecord* pRecord)
{
    ERROR2IF(pRecord == NULL, FALSE, "Record is NULL in TimeStampBrushPoint::WriteNative");
    
    BOOL ok    = pRecord->WriteCoord(m_Point);
    TRACEUSER( "Diccon", _T("Wrote Point %d, %d\n"), m_Point.x, m_Point.y );
    if (ok) ok = pRecord->WriteDOUBLE(m_Tangent);
    if (ok) ok = pRecord->WriteDOUBLE(m_Proportion);
    if (ok) ok = pRecord->WriteINT32(m_Distance);

    return ok;
}

---