bevfill.cpp

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// $Id: bevfill.cpp 1282 2006-06-09 09:46:49Z alex $
// bevel filling class implementation
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
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----------------------------------

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 */

#include "camtypes.h"
//#include "app.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "bevfill.h"

CC_IMPLEMENT_DYNAMIC(CBevelFills, CCObject)
CC_IMPLEMENT_DYNAMIC(CBevelFill, CCObject)
CC_IMPLEMENT_DYNAMIC(CBevelFillFlat, CBevelFill)
CC_IMPLEMENT_DYNAMIC(CBevelFillRound, CBevelFill)
CC_IMPLEMENT_DYNAMIC(CBevelFillSquare, CBevelFill)
CC_IMPLEMENT_DYNAMIC(CBevelFillFrame, CBevelFill)
CC_IMPLEMENT_DYNAMIC(CBevelFillSmooth, CBevelFill)
CC_IMPLEMENT_DYNAMIC(CBevelFillRuffle, CBevelFill)
CC_IMPLEMENT_DYNAMIC(CBevelFillPoint, CBevelFill)

#define new CAM_DEBUG_NEW

// the value to set to be transparent in some fills
const double SplitValue = 213;

void CBevelFill::EnsureValueRange(double *value)
{
    if (*value > 254)
    {
        *value = 254;
    }
    else if (*value < 1)
    {
        *value = 1;
    }
}

// the CBevFills class

CBevelFills::CBevelFills()
{
    SetUpFills();
}

CBevelFills::~CBevelFills()
{
    for (INT32 i = 0 ; i < m_NumFills; i++)
    {
        TRACE( _T("deleting bevel fill %d\n"), i);
        delete m_pBevFills[i];
    }

    delete m_pBevFills;
    m_pBevFills = NULL;
}

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

>   BOOL CBevelFills::SetUpFills()

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/10/98
    Purpose:    Set up the bevel filling array
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

BOOL CBevelFills::SetUpFills()
{
    // set up the list first
    m_NumFills = 7;

    m_pBevFills = new CBevelFill *[m_NumFills];
    m_pBevFills[0] = new CBevelFillFlat;

    m_pBevFills[1] = new CBevelFillRound;

    m_pBevFills[2] = new CBevelFillSquare;

    m_pBevFills[3] = new CBevelFillFrame;

    m_pBevFills[4] = new CBevelFillSmooth;

    m_pBevFills[5] = new CBevelFillPoint;

    m_pBevFills[6] = new CBevelFillRuffle;

    return TRUE;
}

COLORREF CBevelFills::CalcPixelValue(BYTE value, INT32 bevType, double Pos, INT32 Contrast)
{
    if (Pos < 0.00)
    {
        Pos = 0.00;
    }

    if (Pos >= 1.00)
    {
        Pos = 1.00;
    }

    if (bevType < 0 || bevType >= m_NumFills)
    {
        return m_pBevFills[0]->CalcPixelValue(value, Pos, Contrast);
    }
    
    return m_pBevFills[bevType]->CalcPixelValue(value, Pos, Contrast);
}

// all the fill class definitions

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

>   COLORREF CBevelFlatFill::CalcPixelValue(BYTE value, double Pos, INT32 Contrast);

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/98
    Purpose:    Do a flat fill
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

COLORREF CBevelFillFlat::CalcPixelValue(BYTE value, double Pos, INT32 Contrast)
{
    double RValue = value;
    double GValue = value;
    double BValue = value;
    double AValue = value;

    if (AValue < SplitValue)
    {
        AValue *= 255.0 / SplitValue;
    }
    else 
    {
        AValue = 255.0 - AValue;
        AValue *= 255.0 / (255.0 - SplitValue);

        AValue = 1.0 - (AValue / 255.0);
        AValue *= AValue;
        AValue = (1.0 - AValue) * 255.0;
    }
    
    AValue *= 200.0 / 255.0;

    RValue += 0.5;
    GValue += 0.5;
    BValue += 0.5;

    EnsureValueRange(&AValue);
    
    BYTE RByte = (BYTE)RValue;
    BYTE GByte = (BYTE)GValue;
    BYTE BByte = (BYTE)BValue;
    BYTE AByte = (BYTE)AValue;

    return RByte | (GByte << 8) | (BByte << 16) | (AByte << 24);
}

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

>   COLORREF CBevelFillRound::CalcPixelValue(BYTE value, double Pos, INT32 Contrast);

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/98
    Purpose:    Do a flat fill
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

COLORREF CBevelFillRound::CalcPixelValue(BYTE value, double Pos, INT32 Contrast)
{
    double RValue = value;
    double GValue = value;
    double BValue = value;
    double AValue = value;

    double Gradient = 0;


    if (Pos <= 0.5)
    {
        Pos = Pos / 0.5;

        Gradient = 128 - RValue;
        RValue = RValue + (Gradient * Pos);
    }   
    else
    {
        Pos = 1.0 - Pos;
        RValue = 255.0 - RValue;
        
        Pos = Pos / 0.5;

        Gradient = 128 - RValue;
        RValue = RValue + (Gradient * Pos);
    }       

    BYTE RByte = (BYTE)RValue;
    BYTE GByte = (BYTE)RValue;
    BYTE BByte = (BYTE)RValue;
    BYTE AByte = (BYTE)AValue;

    return RByte | (GByte << 8) | (BByte << 16) | (AByte << 24);
}
    
/********************************************************************************************

>   COLORREF CBevelFillSqaure::CalcPixelValue(BYTE value, double Pos, INT32 Contrast);

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/98
    Purpose:    Do a flat fill
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

COLORREF CBevelFillSquare::CalcPixelValue(BYTE value, double Pos, INT32 Contrast)
{
double RValue = value;
    double GValue = value;
    double BValue = value;
    double AValue = value;

    double Gradient = 0;


    if (Pos <= 0.3)
    {
        // do nothing
    }
    else if (Pos >= 0.7)
    {
        RValue = 255.0 - RValue;
    }
    else
    {
        RValue = 128.0;
    }       

    BYTE RByte = (BYTE)RValue;
    BYTE GByte = (BYTE)RValue;
    BYTE BByte = (BYTE)RValue;
    BYTE AByte = (BYTE)AValue;

    return RByte | (GByte << 8) | (BByte << 16) | (AByte << 24);
}
    
/********************************************************************************************

>   COLORREF CBevelFillFrame::CalcPixelValue(BYTE value, double Pos, INT32 Contrast);

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/98
    Purpose:    Do a Mesa fill
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

COLORREF CBevelFillFrame::CalcPixelValue(BYTE value, double Pos, INT32 Contrast)
{
    Pos = 1.0 - Pos;
    
    double RValue = value;
    double GValue = value;
    double BValue = value;
    double AValue = value;

    double kValue = value;

    // deal with the outside inwards
    if (value <= 128)
    {
        kValue = 128.0 - kValue;
        kValue *= (1.0 - Pos);
        kValue = 128.0 - kValue;
    }
    else
    {
        kValue -= 127.0;
        kValue *= (1.0 - Pos);
        kValue += 127.0;
    }

    RValue = kValue;
    GValue = kValue;
    BValue = kValue;
    AValue = kValue;
    
    BYTE RByte = (BYTE)RValue;
    BYTE GByte = (BYTE)GValue;
    BYTE BByte = (BYTE)BValue;
    BYTE AByte = (BYTE)AValue;

    return RByte | (GByte << 8) | (BByte << 16) | (AByte << 24);
}

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

>   COLORREF CBevelFillSmooth::CalcPixelValue(BYTE value, double Pos, INT32 Contrast);

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/98
    Purpose:    Do a flat fill
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

COLORREF CBevelFillSmooth::CalcPixelValue(BYTE value, double Pos, INT32 Contrast)
{
    double RValue = value;
    double GValue = value;
    double BValue = value;
    double AValue = value;

    double kValue = value;

    // deal with the outside inwards
    if (value <= 128)
    {
        kValue = 128.0 - kValue;
        kValue *= (1.0 - Pos);
        kValue = 128.0 - kValue;
    }
    else
    {
        kValue -= 127.0;
        kValue *= (1.0 - Pos);
        kValue += 127.0;
    }

    RValue = kValue;
    GValue = kValue;
    BValue = kValue;
    AValue = kValue;
    
    BYTE RByte = (BYTE)RValue;
    BYTE GByte = (BYTE)GValue;
    BYTE BByte = (BYTE)BValue;
    BYTE AByte = (BYTE)AValue;

    return RByte | (GByte << 8) | (BByte << 16) | (AByte << 24);
}

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

>   COLORREF CBevelFillPoint::CalcPixelValue(BYTE value, double Pos, INT32 Contrast);

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/98
    Purpose:    Do a flat fill
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

COLORREF CBevelFillPoint::CalcPixelValue(BYTE value, double Pos, INT32 Contrast)
{
    double RValue = value;
    double GValue = value;
    double BValue = value;
    double AValue = value;

    double kValue = value;

    if (Pos < 0.5)
    {
        // do nothing
    }
    else
    {
        kValue = 255.0 - kValue;
    }
    
    RValue = kValue;
    GValue = kValue;
    BValue = kValue;
    AValue = kValue;

    BYTE RByte = (BYTE)RValue;
    BYTE GByte = (BYTE)GValue;
    BYTE BByte = (BYTE)BValue;
    BYTE AByte = (BYTE)AValue;

    return RByte | (GByte << 8) | (BByte << 16) | (AByte << 24);
}

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

>   COLORREF CBevelFillRuffle::CalcPixelValue(BYTE value, double Pos, INT32 Contrast);

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/98
    Purpose:    Do a ruffled fill
                This is the same as 3 rounded fills
    Inputs:     
    Returns:    TRUE for success
    SeeAlso:    -

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

COLORREF CBevelFillRuffle::CalcPixelValue(BYTE value, double Pos, INT32 Contrast)
{
    // change the position
    if (Pos >= 0 && Pos < 0.3)
    {
        Pos = Pos * (1.0/0.3);
    }
    else if (Pos >= 0.3 && Pos < 0.6)
    {
        Pos = (Pos - 0.3) * (1.0 / 0.3);
    }
    else 
    {
        Pos = (Pos - 0.6) * (1.0 / 0.4);
    }
    
    double RValue = value;
    double GValue = value;
    double BValue = value;
    double AValue = value;

    double kValue = value;

    if (Pos < 0.5)
    {
        // do nothing
    }
    else
    {
        kValue = 255.0 - kValue;
    }
    
    RValue = kValue;
    GValue = kValue;
    BValue = kValue;
    AValue = kValue;

    BYTE RByte = (BYTE)RValue;
    BYTE GByte = (BYTE)GValue;
    BYTE BByte = (BYTE)BValue;
    BYTE AByte = (BYTE)AValue;

    return RByte | (GByte << 8) | (BByte << 16) | (AByte << 24);
}

---