opdrbrsh.h

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// $Id: opdrbrsh.h 1273 2006-06-08 19:41:59Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
       Copyright on certain contributions may be held in joint with their
              respective authors. See AUTHORS file for details.

LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

This file is part of Xara LX.

Xara LX is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as published
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-----------------

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License described above, Xara Group Ltd grants to you certain additional
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The additional rights are to use, modify, and distribute the software
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----------------

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      Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK.
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=================================XARAHEADEREND============================
 */

// class OpDrawBrush

#ifndef INC_OPDRBR
#define INC_OPDRBR

#include "opfree.h"
#include "brshcomp.h"
#include "brpress.h"

class AttrBrushType;
class BlendRef;
class NodeBrush;
class NodeBrushPath;
class NodeBrushMaker;
class CPathPointInfo;
class DocCoord;
class GRenderBrush;
class ProcessPathDistance;
class FreeHandTool;
class BrushPointInfo;
class CDistanceSampler;
class CSampleData;

//typedef CMap<MILLIPOINT,MILLIPOINT&,CPathPointInfo,CPathPointInfo&> PointsMap;

#define OPTOKEN_DRAWBRUSH _T("DrawBrush")
#define OPTOKEN_CHANGEBRUSH _T("ChangeBrush")

#define OPBRUSHPOINTSCACHE


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

>   class OpDrawBrush : public OpFreeHand

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    2/10/99
    Purpose:    Draws a freehand stroke, smooths it and applies a nice brush effect
********************************************************************************************/

class OpDrawBrush : public OpFreeHand
{
    CC_DECLARE_DYNCREATE(OpDrawBrush);

public:
    // Construction/Destruction
    OpDrawBrush();
    OpDrawBrush(FreeHandTool* pTool);
    ~OpDrawBrush();

    // The all important Do functions
    void DoDrag(DocCoord Anchor, Spread*, INT32, BrushHandle Handle, FreeHandJoinInfo* pJoinInfo, Path* ToolPath, 
                GRenderBrush* pGRndRgn, ClickModifiers ClickMods);
//  virtual BOOL SnappingDrag() { return FALSE;  }
    
    // We want to know about key presses so we can see when the modifers change if the
    // mouse is not moving
//  virtual BOOL DragKeyPress(KeyPress* pKeyPress, BOOL bSolidDrag);

    // Virtual functions needed for the dragging operations to work
    virtual void DragPointerMove(DocCoord PointerPos, ClickModifiers ClickMods, Spread*, BOOL bSolidDrag);
    virtual void DragPointerIdle(DocCoord PointerPos, ClickModifiers ClickMods, Spread*, BOOL bSolidDrag);
    virtual void DragFinished(  DocCoord PointerPos, 
                                ClickModifiers ClickMods, 
                                Spread*, 
                                BOOL Success, BOOL bSolidDrag);

    // don't render any blobs whilsts dragging - v.important or it will fall over when you
    // try and render the view into the temporary renderregion
    void RenderDragBlobs( DocRect, Spread*, BOOL bSolidDrag) {}
    
    // These functions required for the OpDescriptor class
    static BOOL Declare();
    static OpState GetState(String_256* Description, OpDescriptor*);

    virtual BOOL IsBrushOp() { return TRUE;}
public : //access
    BOOL SetTimeStamp(double TimeStamp); // sets the period for our timestamp (if we're using it)

    static CDistanceSampler* GeneratePressureData(AttrBrushType* pAttrBrush, MILLIPOINT StartDistance, 
                                                  MILLIPOINT EndDistance, MILLIPOINT NewPathLength);

    static MILLIPOINT GetCurrentLineWidthIfNotDefault(); //gets the current default line width
protected: // helper functions
    
    void ResetMembers();

    // adds points to our internal path
    void AddPointsToPath(DocCoord Pos, Spread* pSpread);
    
    virtual void SetCursorAndStatus(CursorType CurType);

    // applies attributes to the node we create
    virtual BOOL ApplyAttributes(NodePath* NewPath, Document *pDocument);
    
    // does the work of getting our brush objects drawn and onto the screen
    void RenderStepsForTime(double TimeSlice, Spread* pSpread);
    
    

    // Initialisation helper functions
    BOOL InitialisePathProcessorBrush(BrushHandle Handle, MILLIPOINT Distance = 0);
    BOOL InitialiseProcessPathDistance();
    BOOL InitialisePressureCache();

    AttrBrushType* CreateNewAttribute();

    virtual BOOL EditBrushLists(NodePath* pNewPath, INT32 FirstChangedIndex, INT32 NumElements);
            
    // updates the timestamping list of a brush which was created using timestamping and then edited
    BOOL EditTimeStampList(NodePath* pNewPath, INT32 FirstChangedIndex, INT32 NumElements);
    
    // update the pressure list
    BOOL EditPressureList(NodePath* pNewPath, INT32 FirstChangedIndex, INT32 NumElements);

    virtual BOOL SimpleJoinBrush(NodePath* pNewNodePath, Path* pNewPath);
    virtual BOOL ReverseBrushPressure();


protected:  // Timestamping functions
    BOOL InitialiseTimeStampList();
    void RenderTimeStamp();

    BOOL InitialisePressureSampler();
    // smoothing functions
    BOOL ApplyRetroSmoother(NodePath* pNodePath, double SmoothAmount);

    // applies retro smoother to a brush
    BOOL RetroSmoothBrush(NodePath* pNewNodePath);

protected:  // data
    MILLIPOINT m_BrushSpacing;            // the base brush spacing
    MILLIPOINT m_LastSpacing;             // record the previous spacing (it is not always constant)
    MILLIPOINT m_DistanceSinceLastObject;  // the distance along the path since the last object rendered
    MILLIPOINT m_LastDistanceRendered;  // the distance along the path of the last object rendered
    DocCoord m_LastPoint;           // the location of the last brush object (prior to rendering)
    DocCoord m_StartPoint;          // the first point
    DocCoord m_LastPointRendered;  // location of the last point rendered
    INT32 m_NumBrushObjects;  // the number of brush objects drawn so far
    
    UINT32 m_NumInkObjects; // the number of different ink objects that this brush contains
    UINT32 m_LastInkObjectRendered; // records which ink object was last rendered

    double m_BrushScaling;       // our base scaling

    GRenderBrush*       m_pGRenderBrush;      // the render region that renders and displays what we draw
    PathProcessorBrush* m_pPathProcBrush;     // the path processor that controls what is drawn

//#ifdef NEWFASTBRUSHES
    BrushDefinition* m_pBrushDefinition;    // its wasteful to keep getting hold of this inside RenderBrushAtPoint
                                            // lets grab it in this class
    BOOL mustClearStatusBar;                // helps us to avoid stupidly updating the status bar
    Application* pApp;                      // so we don't have to keep getting old of it
//#endif

    ProcessPathDistance* m_pProcPathDistance; // calculates where we are along the path
    FreeHandTool*       m_pTool;              // our parent tool

    BOOL m_bFirstPointRendered;              // indicates whether or not the first point has been rendered
    
    MILLIPOINT m_FirstSpacing;              // the spacing to use for the first object

    INT32   m_LastPathIndexRendered;    // when we are EOR rendering the path, keep track of the last one we did

#ifdef OPBRUSHPOINTSCACHE
    PointsMap*          m_pPointsCache;     // caches the coordinates of our brush objects
#endif

protected: // Time stamping data

    double              m_TimeStamp;  // if we are timestamping this records how often we put down an object
    double              m_LastTimeStamp; // the time of the last object
    TimeStampList*      m_pTimeStampList; // stores the timestamped points
    MonotonicTime       m_Timer;

protected: 
    // pressure data

    PressureList*       m_pPressureList;

    // the new sample data
    CDistanceSampler*       m_pPressureSampler;

    UINT32 m_NumPressureVals;
private:
    
    
};

enum ChangeBrushType  { CHANGEBRUSH_NONE,
                        CHANGEBRUSH_SPACING,
                        CHANGEBRUSH_SPACING_MAXRAND,
                        CHANGEBRUSH_SPACING_RANDSEED,
                        CHANGEBRUSH_SPACING_INCRPROP,
                        CHANGEBRUSH_SPACING_INCRCONST,
                        CHANGEBRUSH_SCALING,
                        CHANGEBRUSH_SCALING_INCR,
                        CHANGEBRUSH_SCALING_INCRCONST,
                        CHANGEBRUSH_SCALING_MAXRAND,
                        CHANGEBRUSH_SCALING_RANDSEED,
                        CHANGEBRUSH_SCALING_PRESSURE,
                        CHANGEBRUSH_OFFSET_TYPE,
                        CHANGEBRUSH_OFFSET_TYPE_SEED,
                        CHANGEBRUSH_OFFSET_VAL,
                        CHANGEBRUSH_OFFSET_INCRPROP,
                        CHANGEBRUSH_OFFSET_INCRCONST,
                        CHANGEBRUSH_OFFSET_MAXRAND,
                        CHANGEBRUSH_OFFSET_VALSEED,
                        CHANGEBRUSH_OFFSET_SEEDS,
                        CHANGEBRUSH_TILED,
                        CHANGEBRUSH_TANGENTIAL,
                        CHANGEBRUSH_ROTATE_ANGLE,
                        CHANGEBRUSH_ROTATE_INCRPROP,
                        CHANGEBRUSH_ROTATE_INCRCONST,
                        CHANGEBRUSH_ROTATE_MAXRAND,
                        CHANGEBRUSH_ROTATE_RANDSEED,
                        CHANGEBRUSH_ROTATE_PRESSURE,
                        CHANGEBRUSH_NAME,
                        CHANGEBRUSH_USELOCALFILLCOL,
                        CHANGEBRUSH_USELOCALTRANSP,
                        CHANGEBRUSH_USENAMEDCOL,
                        CHANGEBRUSH_REGEN,
                        CHANGEBRUSH_SEQUENCE,
                        CHANGEBRUSH_SEQUENCE_RANDSEED,
                        CHANGEBRUSH_TIMESTAMP,
                        CHANGEBRUSH_HUE_INCR,
                        CHANGEBRUSH_HUE_MAXRAND,
                        CHANGEBRUSH_FILL_SEEDS,
                        CHANGEBRUSH_SAT_MAXRAND,
                        CHANGEBRUSH_SAT_RANDSEED,
                        CHANGEBRUSH_TRANSP,
                        CHANGEBRUSH_TRANSP_PRESSURE,
                        CHANGEBRUSH_ALL
                                        };


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

>   class OpChangeBrush : public SelOperation

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    12/11/99
    Purpose:    base class for operations to change various features of the brush
    SeeAlso:    -

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

class OpChangeBrush : public SelOperation
{
CC_DECLARE_DYNCREATE(OpChangeBrush);

public:
    // Construction/Destruction
    OpChangeBrush();                    

    ~OpChangeBrush() {}

    // These functions required for the OpDescriptor class
    static BOOL Declare();
    static OpState GetState(String_256* Description, OpDescriptor*);

    // The all-important Do() func
    virtual void DoWithParam(OpDescriptor*,OpParam* pOpParam);
    virtual void GetOpName(String_256* OpName);

protected:
    BOOL ChangeLineWidth(const double &PropChange, NodeRenderableInk* pInk);
    // changes the line width applied to pInk by the proportion provided

private:
    ChangeBrushType ChangeType;
};

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

>   class ChangeBrushOpParam : public OpParam

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/11/99
    Purpose:    The param passed to OpChangeBrush::DoWithParam
    SeeAlso:    -

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

class ChangeBrushOpParam : public OpParam
{

CC_DECLARE_DYNAMIC(ChangeBrushOpParam)

public:
    ChangeBrushOpParam();   
    ChangeBrushOpParam(const ChangeBrushOpParam& Other);
    ~ChangeBrushOpParam()   {}

    void InitMembers();
    BOOL ChangeLineWidth();

public: // overridables
    virtual void SetOldValues(AttrBrushType* pBrushedNode);
    virtual void SetNewValues(AttrBrushType* pBrushedNode);
    virtual ChangeBrushOpParam operator=(const ChangeBrushOpParam& Other);

    void SwapOldAndNew();
    void SwapDouble(double &First, double &Second);
    void SwapUINT(UINT32 &First, UINT32 &Second);
    void SwapINT32(INT32 &First, INT32 &Second);
    void SwapBOOL(BOOL &First, BOOL &Second);
    void SetValues(BrushData Data);

    ChangeBrushType ChangeType;

    MILLIPOINT m_OldSpacing;
    MILLIPOINT m_NewSpacing;
    double     m_NewSpacingIncrProp;
    double     m_OldSpacingIncrProp;
    MILLIPOINT m_NewSpacingIncrConst;
    MILLIPOINT m_OldSpacingIncrConst;
    PressureArray* m_pPressure;
    UINT32     m_OldSpacingMaxRand;
    UINT32     m_NewSpacingMaxRand;
    UINT32     m_NewSpacingRandSeed;
    UINT32     m_OldSpacingRandSeed;
    double     m_OldScaling;
    double     m_NewScaling;
    double     m_NewScalingIncr;
    double     m_OldScalingIncr;
    double     m_NewScalingIncrConst;
    double     m_OldScalingIncrConst;
    UINT32     m_NewScalingMaxRand;
    UINT32     m_OldScalingMaxRand;
    UINT32     m_NewScalingRandSeed;
    UINT32     m_OldScalingRandSeed;
    UINT32     m_OldScalingMaxPressure;
    UINT32     m_NewScalingMaxPressure;
    PathOffset m_OldPathOffsetType;
    PathOffset m_NewPathOffsetType;
    UINT32     m_NewOffsetTypeRandSeed;
    UINT32     m_OldOffsetTypeRandSeed;
    MILLIPOINT m_OldPathOffsetVal;
    MILLIPOINT m_NewPathOffsetVal;
    double     m_NewOffsetIncrProp;
    double     m_OldOffsetIncrProp;
    MILLIPOINT m_NewOffsetIncrConst;
    MILLIPOINT m_OldOffsetIncrConst;
    UINT32     m_NewOffsetValMaxRand;
    UINT32     m_OldOffsetValMaxRand;
    UINT32     m_NewOffsetValRandSeed;
    UINT32     m_OldOffsetValRandSeed;
    BOOL       m_bOldTiled;
    BOOL       m_bNewTiled;
    BOOL       m_bOldRotated;
    BOOL       m_bNewRotated;
    double     m_OldRotateAngle;
    double     m_NewRotateAngle;
    double     m_OldRotationIncrProp;
    double     m_NewRotationIncrProp;
    double     m_OldRotationIncrConst;
    double     m_NewRotationIncrConst;
    UINT32     m_NewRotateMaxRand;
    UINT32     m_OldRotateMaxRand;
    UINT32     m_NewRotateRandSeed;
    UINT32     m_OldRotateRandSeed;
    UINT32     m_NewRotationMaxPressure;
    UINT32     m_OldRotationMaxPressure;
    String_32  m_OldBrushName;
    String_32  m_NewBrushName;
    BOOL       m_bOldUseLocalFillColour;
    BOOL       m_bNewUseLocalFillColour;
    BOOL       m_bNewUseLocalTransp;
    BOOL       m_bOldUseLocalTransp;
    BOOL       m_bOldUseNamed;
    BOOL       m_bNewUseNamed;
    SequenceType m_OldSequenceType;
    SequenceType m_NewSequenceType;
    UINT32      m_NewSequenceRandSeed;
    UINT32      m_OldSequenceRandSeed;
    double      m_NewHueIncrement;
    double      m_OldHueIncrement;
    UINT32      m_NewHueMaxRand;
    UINT32      m_OldHueMaxRand;
    UINT32      m_NewHueRandSeed;
    UINT32      m_OldHueRandSeed;
    UINT32      m_NewSatMaxRand;
    UINT32      m_OldSatMaxRand;
    UINT32      m_NewSatRandSeed;
    UINT32      m_OldSatRandSeed;
    INT32       m_NewTransp;
    INT32       m_OldTransp;
    UINT32      m_NewTranspPressure;
    UINT32      m_OldTranspPressure;

    double  m_OldTimeStampValue;
    double  m_NewTimeStampValue;
};



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

>   class ChangeBrushAction : public Action

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/11/94
    Purpose:    An action which changes one of the members of a brush attribute
    SeeAlso:    -

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

class ChangeBrushAction : public Action
{

CC_DECLARE_DYNCREATE(ChangeBrushAction)

public:
    ChangeBrushAction();
    ~ChangeBrushAction();
    virtual ActionCode Execute();
    static ActionCode Init( Operation* pOp,
                            ActionList* pActionList,
                            NodeRenderableInk* pBrushedNode,
                            ChangeBrushOpParam* pChangeParam,
                            ChangeBrushAction** NewAction);

    BOOL ChangeSelectionNoUndo(ChangeBrushOpParam* pParam);
protected:  
    static AttrBrushType* GetAttrBrush(NodeRenderableInk* pInk);
    static BOOL ChangeBrush(ChangeBrushOpParam* pOpParam, AttrBrushType* pAttrBrush);

    // functions that set the values in the atttribute
    static BOOL ChangeBrushSpacing(MILLIPOINT NewSpacing, PressureArray* pArray, AttrBrushType* pAttrBrush);
    static BOOL ChangeSpacingIncrProp(double NewIncr, PressureArray* pArray, AttrBrushType* pAttrBrush);
    static BOOL ChangeSpacingIncrConst(MILLIPOINT NewIncr, PressureArray* pArray, AttrBrushType* pAttrBrush);
    static BOOL ChangeBrushScaling(double NewScaling, AttrBrushType* pAttrBrush);
    static BOOL ChangeScalingRandSeed(UINT32 NewSeed, AttrBrushType* pAttrBrush);
    static BOOL ChangeScalingIncr(double NewIncr, AttrBrushType* pAttrBrush);
    static BOOL ChangeScalingIncrConst(double NewIncr, AttrBrushType* pAttrBrush);
    static BOOL ChangeScalingMaxRand(UINT32 NewMax, AttrBrushType* pAttrBrush);
    static BOOL ChangeScalingPressure(UINT32 Pressure, AttrBrushType* pAttrBrush);
    static BOOL ChangeTangential(BOOL bRotate, AttrBrushType* pAttrBrush);
    static BOOL ChangeRotation(double NewAngle, AttrBrushType* pAttrBrush);
    static BOOL ChangeRotationIncrProp(double Incr, AttrBrushType* pAttrBrush);
    static BOOL ChangeRotationIncrConst(double Incr, AttrBrushType* pAttrBrush);
    static BOOL ChangeRotationRandSeed(UINT32 NewSeed, AttrBrushType* pAttrBrush);
    static BOOL ChangeRotationMaxRand(UINT32 NewMax, AttrBrushType* pAttrBrush);
    static BOOL ChangeRotationMaxPressure(UINT32 Pressure, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetValue(MILLIPOINT NewOffset, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetType(PathOffset NewOffset, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetTypeSeed(UINT32 NewSeed, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetIncrProp(double NewIncrProp, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetIncrConst(MILLIPOINT NewIncrConst, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetValMaxRand(UINT32 NewMax, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetValRandSeed(UINT32 NewSeed, AttrBrushType* pAttrBrush);
    static BOOL ChangeOffsetSeeds(UINT32 NewTypeSeed, UINT32 NewOffsetSeed, AttrBrushType* pAttrBrush);
    static BOOL ChangeBrushTile(BOOL bTile, AttrBrushType* pAttrBrush);
    static BOOL ChangeSpacingMaxRand(UINT32 NewMaxRand, AttrBrushType* pAttrBrush);
    static BOOL ChangeSpacingRandSeed(UINT32 NewSeed, AttrBrushType* pAttrBrush);
    static BOOL ChangeUseLocalFillColour(BOOL bUseLocal, AttrBrushType* pAttrBrush);
    static BOOL ChangeUseLocalTransp(BOOL bUseLocal, AttrBrushType* pAttrBrush);
    static BOOL ChangeUseNamedColour(BOOL bUse, AttrBrushType* pAttr);
    static BOOL ChangeSequenceType(SequenceType SeqType, AttrBrushType* pAttrBrush);
    static BOOL ChangeSequenceSeed(UINT32 NewSeed, AttrBrushType* pAttrBrush);
    static BOOL ChangeAll(ChangeBrushOpParam* pParam, AttrBrushType* pAttrBrush);
    static BOOL ChangeHueIncrement(double NewIncr, AttrBrushType* pAttrBrush);
    static BOOL ChangeHueMaxRand (UINT32 Rand, AttrBrushType* pAttrBrush);
    static BOOL ChangeFillSeeds (UINT32 HueSeed, UINT32 SatSeed, AttrBrushType* AttrBrush);
    static BOOL ChangeSatMaxRand (UINT32 Rand, AttrBrushType* pAttrBrush);
    static BOOL ChangeSatRandSeed (UINT32 Seed, AttrBrushType* pAttrBrush);
    static BOOL ChangeTransparency(INT32 Transp, AttrBrushType* pAttrBrush);
    static BOOL ChangeTranspPressure(UINT32 Press, AttrBrushType* pAttrBrush);

    BOOL ChangeLineWidthChildNoUndo(double PropChange, NodeRenderableInk* pInk);
        // changes the line width child of an ink node by the given proportion 
protected: // data
    NodeRenderableInk*  m_pBrushedNode;
    ChangeBrushOpParam  m_ChangeParam;
};


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

>   class RemoveTimeStampPointsAction : public Action

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/3/2000
    Purpose:    An action which removes points from the timestamping list of a BrushAttValue
    SeeAlso:    -

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

class RemoveTimeStampPointsAction : public Action
{
CC_DECLARE_DYNCREATE(RemoveTimeStampPointsAction)

public:
    RemoveTimeStampPointsAction();
    ~RemoveTimeStampPointsAction();
    virtual ActionCode Execute();
    static ActionCode Init( Operation* pOp,
                            ActionList* pActionList,
                            AttrBrushType* pAttrBrush,
                            MILLIPOINT StartDistance,
                            MILLIPOINT EndDistance, 
                            TimeStampList* pPointsList,
                            RemoveTimeStampPointsAction** NewAction);

public: // data
    TimeStampList* m_pTimeStampList;
    AttrBrushType* m_pAttrBrush;
    MILLIPOINT     m_StartDistance;
    MILLIPOINT     m_EndDistance;

};


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

>   class AddTimeStampPointsAction : public Action

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/3/2000
    Purpose:    An action which adds points to the timestamping list of a BrushAttValue
    SeeAlso:    -

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

class AddTimeStampPointsAction : public Action
{
CC_DECLARE_DYNCREATE(AddTimeStampPointsAction)

public:
    AddTimeStampPointsAction();
    ~AddTimeStampPointsAction();
    virtual ActionCode Execute();
    static ActionCode Init( Operation* pOp,
                            ActionList* pActionList,
                            AttrBrushType* pAttrBrush,
                            TimeStampList* pNewPoints,
                            MILLIPOINT StartDistance,
                            MILLIPOINT EndDistance,
                            size_t NumPoints,
                            AddTimeStampPointsAction** NewAction);
public:
    AttrBrushType* m_pAttrBrush;
    TimeStampList* m_pTimeStampList;
    MILLIPOINT m_StartDistance;
    MILLIPOINT m_EndDistance;
    size_t     m_NumPoints;
};



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

>   class UpdateBrushAction : public Action

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/3/2000
    Purpose:    An action which signals to a brush attribute that its ink node hsa changed.
                It is appropriate to call this action when serious adjustments have been made
                to the timestamping points list of the attrbrushtype, for instance adding or
                removing subsets of the list.  It is not appropriate to call it when the coordinates
                of the path have changed but you do not wish to add or remove any points from the list.
                

    SeeAlso:    -

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

class UpdateBrushAction : public Action
{
CC_DECLARE_DYNCREATE(UpdateBrushAction)

public:
    UpdateBrushAction();
    ~UpdateBrushAction();

    virtual ActionCode Execute();
    static ActionCode Init( Operation* pOp,
                            ActionList* pActionList,
                            NodePath* pNodePath,
                            UpdateBrushAction** NewAction);

public: //data
    NodePath* m_pNodePath;


};


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

>   class SetRepositionTimeStampPointsAction : public Action

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/3/2000
    Purpose:    The purpose of this action is to set a flag that determines what happens when
                the brushed nodepath calls its timestamping brush attribute to update itself.
                Setting this flag to TRUE indicates that our path has changed so that our 
                timestamping list coordinates are no longer on the line.  Therefore we will 
                reposition these points on the new line.  Setting it to FALSE indicates that 
                we have added or removed points from the timestamping list and should sort 
                and reorder it to make sure it is ok.
                

    SeeAlso:    -

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


class SetTimeStampUpdateTypeAction : public Action
{
CC_DECLARE_DYNCREATE(SetTimeStampUpdateTypeAction)

public:
    SetTimeStampUpdateTypeAction();
    ~SetTimeStampUpdateTypeAction();

    virtual ActionCode Execute();
    static ActionCode Init( Operation* pOp,
                            ActionList* pActionList,
                            AttrBrushType* pAttrBrush,
                            NodePath* pNodePath,
                            ListUpdateType TypeToSet,
                            SetTimeStampUpdateTypeAction** NewAction);

public: //data
    NodePath* m_pNodePath;
    AttrBrushType* m_pAttrBrush;
    ListUpdateType m_TypeToSet;

};


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

>   class RemovePressurePointsAction : public Action

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/3/2000
    Purpose:    An action which removes points from the pressure data list of a BrushAttValue
    SeeAlso:    -

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

class RemovePressurePointsAction : public Action
{
CC_DECLARE_DYNCREATE(RemovePressurePointsAction)

public:
    RemovePressurePointsAction();
    ~RemovePressurePointsAction();
    virtual ActionCode Execute();
    static ActionCode Init( Operation* pOp,
                            ActionList* pActionList,
                            AttrBrushType* pAttrBrush,
                            UINT32 StartIndex,
                            UINT32 NumPoints,   
                            CSampleData* pSampler,
                            RemovePressurePointsAction** NewAction);

public: // data
    CSampleData* m_pPressureSampler;
    AttrBrushType* m_pAttrBrush;
    MILLIPOINT     m_StartIndex;
    MILLIPOINT     m_NumPoints;

};


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

>   class AddPressurePointsAction : public Action

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/3/2000
    Purpose:    An action which adds points to the Pressure list of a BrushAttValue
    SeeAlso:    -

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

class AddPressurePointsAction : public Action
{
CC_DECLARE_DYNCREATE(AddPressurePointsAction)

public:
    AddPressurePointsAction();
    ~AddPressurePointsAction();
    virtual ActionCode Execute();
    static ActionCode Init( Operation* pOp,
                            ActionList* pActionList,
                            AttrBrushType* pAttrBrush,
                            CSampleData* pNewPoints,
                            UINT32 StartIndex,
                            size_t NumPoints,
                            AddPressurePointsAction** NewAction);
public:
    AttrBrushType*  m_pAttrBrush;
    CSampleData*    m_pPressureSampler;
    MILLIPOINT      m_StartIndex;
    size_t          m_NumPoints;
};

#endif

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