ppbevel.h

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// $Id: ppbevel.h 751 2006-03-31 15:43:49Z alex $
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 */
// ppbevel - Definition of bevel PathProcessor class

#ifndef INC_PPBEVEL
#define INC_PPBEVEL

#include "beveler.h"
#include "pathpcs.h"

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

>   class BevelPathProcessor : public CCObject

    Author:     David_McClarnon (Xara Group Ltd) <camelotdev@xara.com> Mc
    Created:    12/11/98

    Purpose:    This is the bevel path processor. It is used to combine all the paths
                rendered so that the next bevel node can render them

    SeeAlso:    RenderRegion::DrawPath; PathProcessor::ProcessPath

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

class BevelPathProcessor : public PathProcessor
{
CC_DECLARE_DYNAMIC(BevelPathProcessor);

public:         // Construction/destruction
    BevelPathProcessor(BOOL bShrinkPath);
    ~BevelPathProcessor();

    // The meaty bit !
    virtual void ProcessPath(Path *pPath,
                             RenderRegion *pRender,
                             PathShape ShapePath = PATHSHAPE_PATH);

    BOOL GetPathIsClosed() { return m_bIsPathClosed; }

protected:
    BOOL m_bShrinkPath;
    BOOL m_bIsPathClosed;
    
} ;

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

>   class BevelAttributePathProcessor : public CCObject

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

    Purpose:    This is the path processor which is used by the AttrBevelType node to
                do passbacks etc

    SeeAlso:    RenderRegion::DrawPath; PathProcessor::ProcessPath

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

class BevelAttributePathProcessor : public PathProcessor
{
CC_DECLARE_DYNAMIC(BevelAttributePathProcessor);
public:
    BevelAttributePathProcessor();
    ~BevelAttributePathProcessor();

    void SetIndent(MILLIPOINT Indent) { m_Indent = Indent; }

    // The meaty bit !
    virtual void ProcessPath(Path *pPath,
                             RenderRegion *pRender,
                             PathShape ShapePath = PATHSHAPE_PATH);

    Path * GetSummedPath() { return &m_SummedPath; }
    Path * GetStrokedPath() { return & m_StrokedPath; }
private:
    Path m_SummedPath;
    Path m_StrokedPath;
    MILLIPOINT m_Indent;
};

class BevelHelpers : public CCObject
{
public:
    // helper function to shrink paths before rendering
    static void ShrinkPath(Path * pSrcPath, double amountX, double amountY,
                                    Path * pRetnPath, BOOL bTest = TRUE);

    // function to tell if the path is to be reversed
    static BOOL IsPathToBeReversed(Path * pPath);

    // eliminates the multiple points on the given path
    static void EliminateMultiplePoints(Path * pPath);
} ;

#endif

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