tracectl.h

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// $Id: tracectl.h 751 2006-03-31 15:43:49Z alex $
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================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
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----------------------------------

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=================================XARAHEADEREND============================
 */
// Trace dialog

#ifndef INC_TRACECTL
#define INC_TRACECTL

#include "bfxbase.h"

class KernelBitmap;
class TraceRegion;
class LinearFillAttribute;
class NodePath;
class Node;
class KernelStatistics;             
class BfxErrorRegionList;
class BfxPixelOp;

#define NUM_TRACECTL_DEBUG_BITMAPS 7

enum TraceMethod {  TRACEMETHOD_MONO = 0,
                    TRACEMETHOD_GREYSCALE,
                    TRACEMETHOD_256COL,
                    TRACEMETHOD_TRUECOL,

                    // the end
                    TRACEMETHOD_ILLEGAL,
                    NUM_TRACEMETHOD=TRACEMETHOD_ILLEGAL};


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

>   class TraceControl : public CCObject

    Author:     Alex_Bligh (Xara Group Ltd) <camelotdev@xara.com>
    Created:    14/12/94
    Purpose:    Dialog for tracer

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

class TraceControl : public BitmapEffectBase
{
    // Give my name in memory dumps
    CC_DECLARE_DYNCREATE(TraceControl);

public:
    // Construction etc
    TraceControl();
    virtual ~TraceControl();

    virtual BOOL InitBitmap(KernelBitmap * theOriginal = NULL);
    virtual BOOL GetBitmaps( KernelBitmap * * theOriginal = NULL,
                             KernelBitmap * * theProposed = NULL,
                             KernelBitmap * * theUndithered = NULL  );

    virtual BOOL Trace(BOOL * Done);

    virtual BOOL SetPath(NodePath * pNodePath);
    virtual Node * GetPaths();
    virtual BOOL RemoveTree(BOOL DeleteIt = TRUE);

    virtual BOOL GetParams(
        TraceMethod * pMethod = NULL,
        INT32 * pMinimumArea = NULL,
        double * pMaximumInitialAreaErrorThreshold = NULL,
        double * pMinimumInitialAreaErrorThreshold = NULL,
        double * pInitialAreaErrorRatio = NULL,
        double * pMinGradFillError = NULL,
        double * pGradFillErrorRatio = NULL,
        double * pMinPixelError = NULL,
        double * pMaxPixelError = NULL,
        double * pPixelErrorRatio = NULL,
        double * pQuantColours = NULL,
        double * pBlur = NULL,
        double * pSmooth = NULL
        );

    virtual BOOL SetParams(
        TraceMethod * pMethod = NULL,
        INT32 * pMinimumArea = NULL,
        double * pMaximumInitialAreaErrorThreshold = NULL,
        double * pMinimumInitialAreaErrorThreshold = NULL,
        double * pInitialAreaErrorRatio = NULL,
        double * pMinGradFillError = NULL,
        double * pGradFillErrorRatio = NULL,
        double * pMinPixelError = NULL,
        double * pMaxPixelError = NULL,
        double * pPixelErrorRatio = NULL,
        double * pQuantColours = NULL,
        double * pBlur = NULL,
        double * pSmooth = NULL
);

    virtual BOOL GetProgress(INT32 * pPercent = NULL,
                             INT32 * pNumPaths = NULL,
                             INT32 * pNumCusps = NULL,
                             INT32 * pNumPoints = NULL,
                             BOOL * pProgressDone = NULL);
    
protected:

    virtual BOOL MarkInitialArea();
//  virtual BOOL MarkPositiveArea();

//  virtual BOOL FindInitialPoint();

    virtual BOOL TracePath(BfxPixelOp * pBfxPixelOp);
    virtual BOOL CalculateStatistics();
    virtual BOOL FormGradFill();

    virtual BOOL PlotGradFill(BOOL ToProposed, BOOL UsePath=TRUE);

//  virtual BOOL SwapTempAndProposed();

    virtual BOOL CheckMinimumArea(BfxPixelOp * pBfxPixelOp);

    KernelBitmap * pOriginal;
    KernelBitmap * pProposed;
    KernelBitmap * pUndithered;

#ifdef _DEBUG
public:
    KernelBitmap * pDebug[NUM_TRACECTL_DEBUG_BITMAPS];
    BOOL DebugSwitch[NUM_TRACECTL_DEBUG_BITMAPS];
    BOOL DebugInvalid[NUM_TRACECTL_DEBUG_BITMAPS];
protected:
#endif

    NodePath * pCurrentPath;
    LinearFillAttribute * pFill;

    Node * pTree;
    Node * pJoinNode;

    TraceRegion * pTraceRegion;
    BfxErrorRegionList * pErrorRegionList;

    KernelStatistics * pStats;

    BfxPixelOp * pThresholdPixelOp;
    BfxPixelOp * pColourThresholdPixelOp;
    BfxPixelOp * pPositivePixelOp;

    double InitialAreaErrorThreshold;
    double MaximumInitialAreaErrorThreshold;
    double MinimumInitialAreaErrorThreshold;
    double InitialAreaErrorRatio;

    double GradFillError;
    double NewGradFillError;
    double MinGradFillError;
    double GradFillErrorRatio;

    double PixelError;
    double MinPixelError;
    double MaxPixelError;
    double PixelErrorRatio;
    double QuantColours;

    double Blur;
    double Smooth;

    TraceMethod Method;
    INT32 Log2BPP;

    INT32 MinimumArea;

    // For progrss indicator only
    INT32 TotalPasses;
    INT32 NumPasses;
    INT32 NumPaths;
    INT32 NumCusps;
    INT32 NumPoints;
    BOOL ProgressDone;

    BOOL HavePath;
    BOOL FirstShape;
    BOOL ShapeFreePass;

    BOOL FoundRegion;
    INT32 InitialX;
    INT32 InitialY;
    INT32 RegionArea;

    INT32 ScanPointX;
    INT32 ScanPointY;
    DWORD ScanPointColour;
    
    INT32 XSize;
    INT32 YSize;

    INT32 GFStartX;
    INT32 GFStartY;
    INT32 GFEndX;
    INT32 GFEndY;
    DWORD GFStartC;
    DWORD GFEndC;

};

#endif  // INC_TRACECTL

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