nodepath.h

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// $Id: nodepath.h 1282 2006-06-09 09:46:49Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
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----------------------------------

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=================================XARAHEADEREND============================
 */
// The Node Renderable Path Class

#ifndef INC_NODEPATH
#define INC_NODEPATH


//#include "paths.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "ink.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "rndrgn.h" - in camtypes.h [AUTOMATICALLY REMOVED]

#define OPTOKEN_NODEPATH    _T("PathObject")

class BecomeA;
class CamelotFileRecord;
class RenderRegion;
class Matrix;
class CCAttrMap;
class BlendPath;

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

>   class NodePath : public NodeRenderableInk

    Author:     Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>
    Created:    26/5/93
    Purpose:    Puts path objects into the tree
    SeeAlso:    Path

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

class NodePath : public NodeRenderableInk
{
// Give my name out in memory dumps
CC_DECLARE_DYNCREATE( NodePath )

public:
    Path    InkPath;                                    // Public path
    
public:
    NodePath(); 
    NodePath(Node* ContextNode,  
                    AttachNodeDirection Direction,  
                    BOOL Locked = FALSE, 
                    BOOL Mangled = FALSE,  
                    BOOL Marked = FALSE, 
                    BOOL Selected = FALSE    
              );      
                  
    BOOL SetUpPath(INT32 RequiredSize = 12, INT32 BlockSize = 12); 
    virtual Node* SimpleCopy();                     // Copies a node

    // virtual Functions to deal with bounding boxes
    virtual DocRect GetBoundingRect(BOOL DontUseAttrs=FALSE, BOOL HitTest=FALSE);
    virtual DocRect GetBlobBoundingRect();

    // Rendering Functions
    virtual void Render( RenderRegion* pRender );
    virtual void RenderEorDrag( RenderRegion* );

    // Selection functions.
    virtual void RenderObjectBlobs(RenderRegion* pRender);
    virtual void RenderTinyBlobs(RenderRegion* pRender);
    virtual void RenderPenBlobs(RenderRegion* pRender);

    // Version 2 file format functions
    virtual BOOL WritePreChildrenWeb(BaseCamelotFilter* pFilter);
    virtual BOOL WritePreChildrenNative(BaseCamelotFilter* pFilter);
    virtual BOOL WriteBeginChildRecordsNative(BaseCamelotFilter* pFilter);
    virtual BOOL WriteEndChildRecordsNative(BaseCamelotFilter* pFilter);

    virtual UINT32 ChooseTagValue();
    virtual BOOL  WritePathRecord(BaseCamelotFilter* pFilter);
    virtual BOOL  WritePathRefRecord(BaseCamelotFilter* pFilter,UINT32 SrcPathRecNum,Matrix* pTransform);
    virtual INT32  CalcPathRecordSize();
    virtual BOOL  WritePathToRecord(CamelotFileRecord* pRecord);

    // 'Make shapes' functions
    virtual BOOL CanBecomeA(BecomeA* pBecomeA); 
    virtual BOOL DoBecomeA(BecomeA* pBecomeA); 

    void ClearSubSelection(Spread* pSpread);

    // Responce to clicks from tools
    virtual BOOL OnClick( DocCoord, ClickType, ClickModifiers, Spread * );
    virtual BOOL OnBlobPopUp(Spread*, DocCoord, ContextMenu*);
    virtual BOOL OnNodePopUp(Spread*, DocCoord, ContextMenu*);

    // Other virtual functions
    virtual void Transform( TransformBase& );               // Transforms this object
    
    virtual String Describe(BOOL Plural, BOOL Verbose); 

    #ifdef _DEBUG
        void    ShowDebugTreeDetails() const;       // Debugging function
    #endif
    void GetDebugDetails( StringBase* Str );
    
    virtual UINT32 GetNodeSize() const;             // Returns size of node in bytes
    virtual BOOL IsNodePath() const;
    virtual BOOL IsPathAllowable();

    // The natty Snap functions
    virtual BOOL Snap(DocCoord* pDocCoord);
    virtual BOOL Snap(DocRect* pDocRect,const DocCoord& PrevCoord,const DocCoord& CurCoord);
    virtual BOOL SnapToCoords(DocCoord* pDocCoord);

    virtual double GetRotationAngle();
    virtual void DeSelect(BOOL ReDraw, BOOL bDeselectChildren = FALSE);
    virtual BOOL NeedsToExport(RenderRegion* pRender, BOOL VisibleLayersOnly = FALSE,
                               BOOL CheckSelected = FALSE);
    virtual BOOL AllowOp(ObjChangeParam* pParam, BOOL SetOpPermissionState = TRUE,
                                                 BOOL DoPreTriggerEdit = TRUE);
                                                
    virtual BOOL IsANodeBlendPath();

    virtual ChangeCode  OnChildChange(ObjChangeParam* pParam);

    // Converts this path & all its attributes to a closed path and returns it.
    NodePath * MakeNodePathFromAttributes(  double Flatness = 750.0,
                                            CCAttrMap* pAttrMap = NULL,
                                            BOOL bIncludeClosedPaths = FALSE,
                                            BOOL IncludeWidth = TRUE);
    
    virtual NodePath* GetVariableWidthStrokePath();
    virtual NodePath* GetSmoothVariableWidthStrokePath();

    virtual INT32 EstimateNodeComplexity (OpParam* details);

    BOOL RetroSmoothMe(double Smoothness);

    virtual BOOL GetAreaDetails(XLONG* pxlArea, XLONG* pXLPerimeter);

public:
    virtual BOOL IsDifferent(Node *pOther);
        // Determine if 2 nodes are considered to be equal.
        // NOTE: This may not be implemented fully for all derived classes, so for certain
        // types of node, the comparison will only be to see if they are of the same class!
        // (This was originally added for the StrokeComponent to be able to compare 2
        // subtrees to see if they are equal - a simple base-class implementation plus
        // overrides in NodeRenderable & NopdePath suffices to distinguish most Stroke clipart)

    // Karim MacDonald 25/11/1999
    // Extend functions.
    // Note that if a sub-class returns TRUE from IsTypeExtendible, it must
    // also provide complete implementations of ValidateExtend and Extend,
    // which should usually check/extend its children.
public:
    virtual BOOL IsTypeExtendible() const { return TRUE; }
    virtual DocRect ValidateExtend(const ExtendParams& ExtParams);
    virtual void Extend(const ExtendParams& ExtParams);

    // virtual override of NodeRenderable::TransformTranslateObject.
    void TransformTranslateObject(const ExtendParams& ExtParams);

    // virtual override of NodeRenderableBounded::GetExtendTargetBounds().
    virtual DocRect GetExtendTargetBounds(const ExtendParams& ExtParams);

public:
    static BOOL CreateFromPath(NodePath** ppNewPath,    Path* pSrcPath = NULL,
                                                    Operation* pOp = NULL);
    Path* GetPathCopy();

    virtual void PolyCopyNodeContents(NodeRenderable* pNodeCopy);
    
protected:
    void CopyNodeContents( NodePath* NodeCopy );        // Copies the contents of the path

private:
    void HandleBlobClick(DocCoord*, PathFlags*, INT32, INT32, BOOL, BOOL);

protected:
    double CurrentRotation;

protected:
};

#endif  // INC_NODEPATH

---