ai_grad.h

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// $Id: ai_grad.h 751 2006-03-31 15:43:49Z alex $
// ai_grad.h: interface for the AIGradientProcessor class.
//
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
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 */

#if !defined(AFX_AI_GRAD_H__CFD00AD1_0547_11D4_836F_006008484641__INCLUDED_)
#define AFX_AI_GRAD_H__CFD00AD1_0547_11D4_836F_006008484641__INCLUDED_

class AI5EPSFilter;
class ColourRamp;


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

>   class AIHighlight

    Author:     Colin_Barfoot (Xara Group Ltd) <camelotdev@xara.com>
    Created:    28/03/00
    Purpose:    Helps with the import of Adobe Illustrator 8.0 files.
                Holds the definition of a highlight to be used in subsequent fills.
                (not interpreted at present)

********************************************************************************************/
class AIHighlight
{
public:
    AIHighlight( const INT32 nAngle, const double& dLength, const DocCoord& hilight ) :
        mnAngle(nAngle), mdLength(dLength), mHilight(hilight)
    {}

    INT32       mnAngle;
    double      mdLength;
    DocCoord    mHilight;
};


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

>   class AI5Gradient : public ListItem

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    12/08/94
    Purpose:    Used to hold the definition of an Illustrator 5 gradient fill, while we
                are importing an AI5 file.
    SeeAlso:    AI5EPSFilter

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

class AI5Gradient : public ListItem
{
public:
    String_64       Name;
    BOOL            IsRadial;
    DocColour       StartColour;
    DocColour       EndColour;
    ColourRamp*     mpCurrentRamp;
    AIHighlight*    mpHighlight;
    INT32           midPoint;

public:
    AI5Gradient();
    virtual ~AI5Gradient();
};


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

>   class AIGradientProcessor  

    Author:     Colin_Barfoot (Xara Group Ltd) <camelotdev@xara.com>
    Created:    28/03/00
    Purpose:    Helps with the import of Adobe Illustrator 8.0 files.
                (at the time of writing only the version 7.0 documentation was available
                so some omissions are inevitable).
                It creates a list gradient fills and allows the filter to extract them.

********************************************************************************************/
class AIGradientProcessor  
{
public:
    AIGradientProcessor();
    virtual ~AIGradientProcessor();

    BOOL BeginGradient();
    BOOL DecodeBd( AI5EPSFilter& filter );
    BOOL DecodeBS( AI5EPSFilter& filter );
    BOOL DecodeBh( AI5EPSFilter& filter );
    BOOL EndGradient( AI5EPSFilter& filter );

    AI5Gradient* FindGradient( const StringBase& name );
private:

    BOOL Approx (const double & d1, const double & d2);

    // The list of imported grad fills
    List            mGradFills;

    // Used to indicsate if we found any gradient fills too complex to handle properly.
    BOOL            mbGradFillTooComplex;

    // The grad fill we are currently reading in (if any)
    AI5Gradient*    mpCurrentFill;

    // (ChrisG 3/4/2001) The midpoint for the fill (used to set the bias). Since Xara X
    //  profiling is for the entire fill, not individual points, this will; just be the
    //  first valid value read in.
    INT32           mMidPoint;
    INT32           mLastRampPoint;
};

#endif // !defined(AFX_AI_GRAD_H__CFD00AD1_0547_11D4_836F_006008484641__INCLUDED_)

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