ngscan.h

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// $Id: ngscan.h 803 2006-04-11 14:36:26Z luke $
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================================XARAHEADERSTART===========================
 
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----------------------------------

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 */
/*
    $Header: /wxCamelot/Kernel/ngscan.h 8     20/07/05 15:39 Luke $
    Scans and iterations to find, apply and hide Wix ObjectName attributes to nodes.
*/

#ifndef NGSCAN_H
#define NGSCAN_H

#include "ngiter.h"
#include <list>

class ObjectChangeParam;
class NodeSetProperty;
class NamedStretchProp;
class SGUsedNames;


/***********************************************************************************************
>   class CCAPI BaseSelectScan : public NodeScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/5/99
    Purpose:    Base class for scans which select objects which are in the SGNameItem sets.
    SeeAlso:    SelectScan; SelectUnionScan; SelectIntersectScan
***********************************************************************************************/

class CCAPI BaseSelectScan : public NodeScan
{
public:
    enum Change { TOGGLE = -1, DESELECT, SELECT, SELECT_EXCLUSIVE };

    BaseSelectScan(Change eChange, BOOL fQuiet = FALSE);

protected:
    virtual BOOL OnSelectable(NodeRenderable* pRender);
    Change m_eChange;
    BOOL m_fShout;
    INT32 m_nAffected;

private:
    virtual BOOL Pre();
    virtual BOOL Do(Node*);
    virtual BOOL Post();
};



/***********************************************************************************************
>   class CCAPI SelectScan : public BaseSelectScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/5/99
    Purpose:    Selects objects which are in the set item whose selection toggle has been
                clicked.
    SeeAlso:    BaseSelectScan
***********************************************************************************************/

class CCAPI SelectScan : public BaseSelectScan
{
public:
    SelectScan(SGNameItem* pItem, Change eChange, BOOL fQuiet = FALSE);

protected:
    virtual BOOL OnSelectable(NodeRenderable*);

    SGNameItem* m_pItem;
};



/***********************************************************************************************
>   class CCAPI SelectUnionScan : public BaseSelectScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/5/99
    Purpose:    Selects objects which are in any of the highlighted set items.
    SeeAlso:    BaseSelectScan
***********************************************************************************************/

class CCAPI SelectUnionScan : public BaseSelectScan
{
public:
    SelectUnionScan(Change eChange);

protected:
    class CCAPI Test : public NameItemIter
    {
    public:
        enum Question { IS_NON_MEMBER = FALSE, IS_MEMBER = TRUE };
        Test(NodeRenderable* pRender, Question eQ);

    protected:  
        virtual BOOL Do(SGNameItem*);

        NodeRenderable* m_pRender;
        BOOL m_nXor;
    };

    virtual BOOL OnSelectable(NodeRenderable*);
};



/***********************************************************************************************
>   class CCAPI SelectIntersectScan : public SelectUnionScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/5/99
    Purpose:    Selects objects which are in all of the highlighted set items.
    SeeAlso:    BaseSelectScan; SelectUnionScan
***********************************************************************************************/

class CCAPI SelectIntersectScan : public SelectUnionScan
{
public:
    SelectIntersectScan(Change eChange);

protected:
    virtual BOOL OnSelectable(NodeRenderable*);
};



/********************************************************************************************
>   class CCAPI AllowOpScan : public UndoableNodeScan
    class CCAPI AllowOpSingleScan : public AllowOpScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/5/99
    Purpose:    Performs an AllowOp test and update on all the objects which are members
                of highlighted 'Used Name' items in the Attribute gallery; performs the
                same, but only on members of a specified set.
    Notes:      The present implementation is not reentrant or thread-safe.
********************************************************************************************/

class CCAPI AllowOpScan : public UndoableNodeScan
{
public:
    AllowOpScan(UndoableOperation* pOp, Source* ps);
    virtual BOOL Update();

protected:
    class CCAPI IsLitUsedName : public NameIterOp
    {
    public:
        IsLitUsedName(Node* pNode);

    protected:
        virtual BOOL Do(SGNameItem*);
    };

    virtual BOOL Do(Node*);
    static ObjChangeParam m_OCP;
};



class CCAPI AllowOpSingleScan : public AllowOpScan
{
public:
    AllowOpSingleScan(UndoableOperation* pOp, Source* ps, const StringBase& strName);

protected:
    virtual BOOL Do(Node*);
    
    const StringBase& m_strName;
    SGUsedNames* m_pUsedNames;
};



/********************************************************************************************
>   class CCAPI ApplyScan : public UndoableNodeScan
    class CCAPI ApplySingleScan : public ApplyScan
    class CCAPI ApplyPropScan : public ApplySingleScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/5/99
    Purpose:    Applies all the highlighted 'Used Name' items in the Attribute gallery to
                all the selected objects (if they don't already have them); a single
                name to all the selected objects if they don't already have it; 'applies'
                a NodeSetProperty for a set, with default SGNameProps, to the NodeSetSentinel.
********************************************************************************************/

class CCAPI ApplyScan : public UndoableNodeScan
{
public:
    ApplyScan(UndoableOperation* pOp, Source* ps);

    // Unfortunately a bug in MSVC6 prevents this class being declared protected.
    class CCAPI ApplyItems : public NameIterOp
    {
    public:
        ApplyItems(Node* pNode, UndoableOperation* pOp);

    protected:
        virtual BOOL Do(SGNameItem*);
    };

protected:
    virtual BOOL Do(Node*);
};



class CCAPI ApplySingleScan : public ApplyScan
{
public:
    ApplySingleScan(UndoableOperation* pOp, Source* ps, const StringBase& strName);

protected:
    virtual BOOL Do(Node*);
    const StringBase& m_strName;
};



class CCAPI ApplyPropScan : public ApplySingleScan
{
public:
    ApplyPropScan(UndoableOperation* pOp, const StringBase& strName,
                  NodeSetProperty* pCopyPropNode = 0);

protected:
    virtual BOOL Do(Node*);
    NodeSetProperty* m_pCopyPropNode;
};



/********************************************************************************************
>   class CCAPI HideScan : public UndoableNodeScan
    class CCAPI HidePropScan : public HideScan
    class CCAPI HideSingleScan : public HideScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/5/99
    Purpose:    Hides names of objects and their properties which are highlighted members
                of the 'Used Names' group in the Attribute gallery; hides a specified
                name of objects.
********************************************************************************************/

class CCAPI HideScan : public UndoableNodeScan
{
public:
    HideScan(UndoableOperation* pOp, Source* ps);

    class CCAPI HideItems : public NameIterOp
    {
    public:
        HideItems(Node* pNode, UndoableOperation* pOp);

    private:
        virtual BOOL Do(SGNameItem*);
    };

protected:
    virtual BOOL Do(Node*);
};



class CCAPI HidePropScan : public HideScan
{
public:
    HidePropScan(UndoableOperation* pOp);

protected:
    class CCAPI HideProp : public HideScan::HideItems
    {
    public:
        HideProp(Node* pNode, UndoableOperation* pOp);

    private:
        virtual BOOL Do(SGNameItem*);
    };

    virtual BOOL Do(Node*);
};



class CCAPI HideSingleScan : public HideScan
{
public:
    HideSingleScan(UndoableOperation* pOp, Source* ps, const StringBase& strName);

protected:
    virtual BOOL Do(Node*);
    const StringBase& m_strName;
    SGUsedNames* m_pUsedNames;
};



/***********************************************************************************************
>   class CCAPI CreateDisplayScan : public NodeScan

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/5/99
    Purpose:    Scans the 'selected' document and creates/refreshes the groups and items of
                the Attribute gallery's display.
***********************************************************************************************/

class CCAPI CreateDisplayScan : public NodeScan
{
public:
    CreateDisplayScan();

protected:
    // Resets the counters in all the gallery's items.
    class CCAPI ClearCounters : public NameItemIter
    {
        virtual BOOL Do(SGNameItem*);
    };

    // Creates items for all the sets which include the given object.
    class CCAPI CreateItems : public NameGroupIter
    {
    public:
        CreateItems(Node* pNode);

    protected:
        virtual BOOL Do(SGNameGroup*);
        Node* m_pNode;
    };

    // Deletes all items with node counts of zero.
    class CCAPI DelItemIfUnref : public NameItemIter
    {
        virtual BOOL Do(SGNameItem*);
    };

    // Folds all groups which don't have items.
    class CCAPI FoldGroupIfEmpty : public NameGroupIter
    {
        virtual BOOL Do(SGNameGroup*);
    };

    virtual BOOL Pre();
    virtual BOOL Do(Node*);
    virtual BOOL Post();
};




// This stores delayed calls to the Extender::Extend function.
struct ExtParam
{
    NodeRenderableInk*  pInk;
    BYTE                nType;
    DocRect             drTriggerRef;
    DocRect             drTargetRef;
    DocRect             drNewTrigger;
    DocRect             drLastTarget;
    DocRect             drMinDiff;
};

#endif  /* !NGSCAN_H */

---