combshps.h

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// $Id: combshps.h 1282 2006-06-09 09:46:49Z alex $
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 */
// Header for the shape combining operations

#ifndef INC_COMBSHPS
#define INC_COMBSHPS

//#include "selop.h"
//#include "becomea.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "list.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "nodepath.h"
#include "effects_stack.h"

class UndoableOperaton;
class NodeRenderableInk;
class CCAttrMap;

#define OPTOKEN_COMBINESHAPES   _T("CombineShapes")

#define OPTOKEN_ADDSHAPES       _T("AddShapes")
#define OPTOKEN_SUBTRACTSHAPES  _T("SubtractShapes")
#define OPTOKEN_INTERSECTSHAPES _T("IntersectShapes")
#define OPTOKEN_SLICESHAPES     _T("SliceShapes")

enum CombineReason {    COMBINE_NONE, 
                        COMBINE_ADD, 
                        COMBINE_SUBTRACT, 
                        COMBINE_INTERSECT, 
                        COMBINE_SLICE 
                    };

enum ClipStyle      {   CLIP_STYLE_ADD, 
                        CLIP_STYLE_SUBTRACT, 
                        CLIP_STYLE_INTERSECT
                    };

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

>   class SelObjPathListItem : public ListItem

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    12/1/95
    Purpose:    This class encapsulates all the data needed for each path generated by the objects
                that are being combined.
                A list of all the paths that each of the selected object generates is made, and
                each path generated creates an instance of this class

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

class SelObjPathListItem : public ListItem
{
    CC_DECLARE_DYNCREATE(SelObjPathListItem)

public:
    SelObjPathListItem() : pNodePath(NULL), pCreatedByNode(NULL), pAttrMap(NULL), strokeCreatedPassbackPath(FALSE) {}   // For CC_IMPLEMENT_...

    SelObjPathListItem(NodePath* pThisNodePath,NodeRenderableInk* pThisCreatedByNode,CCAttrMap* pThisAttrMap, BOOL createdByStroke = FALSE);
    ~SelObjPathListItem();
    
    Path*               GetPath();
    NodePath*           GetNodePath()       { return pNodePath; }
    NodeRenderableInk*  GetCreatedByNode()  { return pCreatedByNode; }
    CCAttrMap*          GetAttrMap()        { return pAttrMap; }

    ListRange*          GetEffectStack()
    {
        if (pEffectStack==NULL && pCreatedByNode->FindParent()!=NULL)
            pEffectStack = EffectsStack::GetEffectsStackFromNode(pCreatedByNode);
        if (pEffectStack==NULL && pNodePath->FindParent()!=NULL)
            pEffectStack = EffectsStack::GetEffectsStackFromNode(pNodePath);
        return pEffectStack;
    }

    BOOL GetStrokeCreatedPassbackPath ()    { return (strokeCreatedPassbackPath); }

private:
    NodePath*           pNodePath;
    NodeRenderableInk*  pCreatedByNode;
    CCAttrMap*          pAttrMap;
    ListRange*          pEffectStack;

    BOOL strokeCreatedPassbackPath;     // was this item created by a stroke being passed back?
};


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

>   class SelObjPathList : public ListItem

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    12/1/95
    Purpose:    This class encapsulates all the data needed for each selected object.

                One instance of this class is generated for each selected object.

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

class SelObjPathList : public ListItem
{
    CC_DECLARE_DYNCREATE(SelObjPathList)

public:
    SelObjPathList() : pSelNode(NULL) { ProducedPaths = FALSE; }
    SelObjPathList(Node* pThisSelNode) : pSelNode(pThisSelNode) { ProducedPaths = FALSE; }

    // Destroy the list on destruction
    ~SelObjPathList() { ListOfSelObjPaths.DeleteAll(); }

    Node* GetSelNode()          { return pSelNode; }
    INT32  GetCount()           { return ListOfSelObjPaths.GetCount(); }
    BOOL  HasProducedPaths()    { return ProducedPaths; }
    
    void SetProducedPaths(BOOL state) { ProducedPaths = state; }

    SelObjPathListItem* GetFirstItem()                          { return (SelObjPathListItem*) ListOfSelObjPaths.GetHead(); }
    SelObjPathListItem* GetLastItem()                           { return (SelObjPathListItem*) ListOfSelObjPaths.GetTail(); }
    SelObjPathListItem* GetNextItem(SelObjPathListItem* pItem)  { return (SelObjPathListItem*) ListOfSelObjPaths.GetNext(pItem); }
    void                AddTailItem(SelObjPathListItem* pItem)  { ListOfSelObjPaths.AddTail(pItem); }

private:
    Node*   pSelNode;           // ptr to the selected object
    List    ListOfSelObjPaths;  // List of paths generated by the object
    BOOL    ProducedPaths;      // TRUE if any of the paths in the above list produced one or more new paths
};


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

>   class OpCombineShapes : public SelOperation

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/1/95
    Purpose:    Base class op that does all the shape combining ops, like add, subtract and intersect,etc

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

class OpCombineShapes : public SelOperation
{
    CC_DECLARE_DYNCREATE( OpCombineShapes )   

public:
    OpCombineShapes();
    ~OpCombineShapes();

    static BOOL     Init();             
    static OpState  GetState(String_256*, OpDescriptor*);

    virtual void Do(OpDescriptor*);
    virtual void GetOpName(String_256*);

protected:
    CombineReason   Reason;

private:
    BOOL ConvertToShapes(Range* pRange, BOOL bCombineEffectBitmaps);
    BOOL CreateSelObjPathLists(BOOL bCombineEffectBitmaps);
    BOOL CreateSelObjPathList(Node* pNode,
                                SelObjPathList* pSelObjPathList,
                                BOOL IsFirstNode = TRUE,
                                BOOL bCombineEffectBitmaps = TRUE,
                                BecomeAReason reason = BECOMEA_PASSBACK);

    BOOL DoAddShapes();
    BOOL AddPathsFromList(Path* pPath,SelObjPathList* pSelObjPathList);
    BOOL AddPaths(Path* pPath1,Path* pPath2);
    BOOL AddOrMergePaths(Path* pPath1, Path* pPath2);

    BOOL DoCombineShapes(ClipStyle Style, BOOL bCombineEffectBitmaps);
    BOOL CombinePathsFromList(  ClipStyle Style,
                                Path* pClipPath,
                                Path* pStrokedClipPath,
                                SelObjPathList* pSelObjPathList,
                                BOOL bCombineEffectBitmaps = TRUE);
    BOOL CombinePaths(ClipStyle Style,Path* pClipPath,Path* pStrokedClipPath,Path* pSrcPath,Path* pDestPath);

    BOOL DoHideListedNodes(BOOL bCombineEffectBitmaps);
    BOOL DoSelectResultNodes(BOOL bCombineEffectBitmaps);
    BOOL ApplyAttributes(NodeRenderableInk* pSrcNode,NodeRenderableInk* pDestNode,CCAttrMap* pAttrMap, SelObjPathListItem* pListItem = NULL);
    BOOL ApplyEffects(SelObjPathListItem* pListItem, NodeRenderableInk* pDestNode, NodeRenderableInk* pParentEffect);

    BOOL    StrokePathToPath(Path* pPath,Path* pDest);
    BOOL    ConvertClipLineToShape(Path* pClipPath,Path* pSrcPath,Path* pDestPath);
    DocRect GetBoundingRect(Path* pPath);

    BOOL DoInsertNewNode(NodeRenderableBounded* pNewNode);

    UINT32 AdjustAttributesForStroke(CCAttrMap* pAttrMap, SelObjPathListItem* pListItem = NULL);
//  void DeleteExtraStrokeAttributes(CCAttrMap* pAttrMap, SelObjPathListItem* pListItem = NULL);

    BOOL BeginSlowJob();

    SelObjPathList* GetFirstList()                      { return (SelObjPathList*) ListOfSelObjPathLists.GetHead(); }
    SelObjPathList* GetLastList()                       { return (SelObjPathList*) ListOfSelObjPathLists.GetTail(); }
    SelObjPathList* GetNextList(SelObjPathList* pItem)  { return (SelObjPathList*) ListOfSelObjPathLists.GetNext(pItem); }

    ListRange* CopyRange(Range* pRange);

    List        ListOfSelObjPathLists;
    ListRange*  pListOfResults;
    DocRect     OriginalBoundingRect;
    SelRange*   pSelRange;  // Set up at the start of Do()
    INT32       NumPaths;
    INT32       JobCount;
    INT32       NodeInsertCount;

    Node*               pContextNode;
    AttachNodeDirection AttachDir;
};


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

>   class OpAddShapes : public OpCombineShapes

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/1/95
    Purpose:    Op that invokes the Add Shapes operation performed by OpCombineShapes

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

class OpAddShapes : public OpCombineShapes
{
    CC_DECLARE_DYNCREATE( OpAddShapes )   

public:
    OpAddShapes()   { Reason = COMBINE_ADD; }
};

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

>   class OpSubtractShapes : public OpCombineShapes

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/1/95
    Purpose:    Op that invokes the Add Shapes operation performed by OpCombineShapes

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

class OpSubtractShapes : public OpCombineShapes
{
    CC_DECLARE_DYNCREATE( OpSubtractShapes )   

public:
    OpSubtractShapes()  { Reason = COMBINE_SUBTRACT; }
};


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

>   class OpIntersectShapes : public OpCombineShapes

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/1/95
    Purpose:    Op that invokes the Add Shapes operation performed by OpCombineShapes

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

class OpIntersectShapes : public OpCombineShapes
{
    CC_DECLARE_DYNCREATE( OpIntersectShapes )   

public:
    OpIntersectShapes() { Reason = COMBINE_INTERSECT; }
};


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

>   class OpSliceShapes : public OpCombineShapes

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/1/95
    Purpose:    Op that invokes the Add Shapes operation performed by OpCombineShapes

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

class OpSliceShapes : public OpCombineShapes
{
    CC_DECLARE_DYNCREATE( OpSliceShapes )   

public:
    OpSliceShapes() { Reason = COMBINE_SLICE; }
};


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

>   class CombineBecomeA: public BecomeA

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    12/1/95
    Purpose:    This is the class that is passed to other nodes when the combine op gets them to 
                to turn into other types via their DoBecomeA() method

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

class CombineBecomeA : public BecomeA
{
CC_DECLARE_MEMDUMP(CombineBecomeA);
public:
    CombineBecomeA(BecomeAReason ThisReason, UndoableOperation* pOp, SelObjPathList* pThisSelObjPathList,Node* pThisSelNode, BOOL IsFirstNode = FALSE) :
                BecomeA(ThisReason,CC_RUNTIME_CLASS(NodePath),pOp,TRUE,IsFirstNode), pSelObjPathList(pThisSelObjPathList)
                { strokeCreatedPassbackPath = FALSE; }

    // This function should be called when Reason == BECOMEA_PASSBACK 
    virtual BOOL PassBack(NodeRenderableInk* pNewNode,NodeRenderableInk* pCreatedByNode,CCAttrMap* pAttrMap);

    BOOL IsCombineBecomeA() { return TRUE; }

    // CGS (13/12/2000):  allows us to flag whether the path that is being passed back was created within
    // PathProcessorStroke::DoBecomeA ().  This allows us to apply attributes correctly to objects when
    // using OpCombineShapes.  The value is used to set the corresponding value within SelObjPathListItem's,
    // so that we can control the flow of execution within OpCombineShapes::AdjustAttributesForStroke ()
    void SetStrokeCreatedPassbackPath (BOOL newVal) { strokeCreatedPassbackPath = newVal; }

private:
    SelObjPathList* pSelObjPathList;

    BOOL strokeCreatedPassbackPath;     // is the next path being passed back being created by a stroke?
};


#endif  // INC_COMBSHPS

---