ngsentry.h

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// $Id: ngsentry.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.
                    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.

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under the terms of the GNU General Public License version 2 as published
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Franklin St, Fifth Floor, Boston, MA  02110-1301 USA


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-----------------

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License described above, Xara Group Ltd grants to you certain additional
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=================================XARAHEADEREND============================
 */
/*
    $Header: /Camelot/kernel/ngsentry.h 13    7/01/04 16:47 Phil $
    Special sentinel node that has all existing set names applied to it.
*/

#ifndef NGSENTRY_H
#define NGSENTRY_H

//#include "node.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "ngprop.h"
#include "opbarcreation.h"
#include <vector>

class BaseCamelotFilter;
class TemplateAttribute;


/**********************************************************************************************
>   class CCAPI NodeSetProperty : public Node

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    16/9/99
    Purpose:    Child node of NodeSetSentinel that stores individual property records
                for a set of objects (SGNameItem).
    SeeAlso:    SGNameProp; SGNameItem; Node; NodeSetSentinel; NameGallery
**********************************************************************************************/

class CCAPI NodeSetProperty : public Node
{
    CC_DECLARE_DYNAMIC(NodeSetProperty);
public:
    // Creation & destruction.
    NodeSetProperty();
    NodeSetProperty(const StringBase& strName);
    virtual ~NodeSetProperty();

    // The name of the set these properties are for.
    const StringBase& GetName() const
            { return m_strName; }

    // Get and set the given property held by this node, returning the old one.
    virtual SGNameProp* SetProperty(SGNameProp* pNewProp);
    SGNameProp* GetProperty(INT32 nIndex) const
            { return m_pProp[nIndex]; }

    // Create default properties of all types for the named set.
    BOOL CreateDefaults();

    // Copy the properties of the given NodeSetProperty into this.
    BOOL CopyProperties(NodeSetProperty* pOther);

    // Node copying.
    virtual Node* SimpleCopy();
    virtual void PolyCopyNodeContents(NodeRenderable* pNodeCopy);

protected:
    virtual UINT32 GetNodeSize() const;
    void CopyNodeContents(NodeSetProperty* pCopy);

    // Version 2 native streaming.  
    virtual BOOL WritePreChildrenNative(BaseCamelotFilter*);

    // Version 2 web streaming.
    virtual BOOL CanWriteChildrenWeb(BaseCamelotFilter*);
    virtual BOOL WritePreChildrenWeb(BaseCamelotFilter*);
    virtual BOOL WriteBeginChildRecordsWeb(BaseCamelotFilter*);
    virtual BOOL WriteEndChildRecordsWeb(BaseCamelotFilter*);

private:
    // Data.
    StringBase  m_strName;
    SGNameProp* m_pProp[SGNameProp::nPropertyCount];    // properties of the named set

public:
    // Debugging.
    BOOL m_Imported;
#if DEBUG_TREE  
    virtual void GetDebugDetails(StringBase* pStr);
    virtual void ShowDebugTreeDetails() const;
#endif
};



/**********************************************************************************************
>   class CCAPI NodeBarProperty : public Node

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    16/9/99
    Purpose:    Child node of NodeSetSentinel that stores individual property records
                for a bars.
    SeeAlso:    SGNameProp; SGNameItem; Node; NodeSetSentinel; NameGallery
**********************************************************************************************/

class CCAPI NodeBarProperty : public Node
{
    CC_DECLARE_DYNAMIC(NodeBarProperty);
public:
    // Creation & destruction.
    NodeBarProperty();
    NodeBarProperty(Node* pContext, AttachNodeDirection eDir);

    // Return how many entries in the array and allow it to be reinitialised.
    size_t HowMany() const                      { return m_nCount; }
    void Clear()                                { m_nCount = 0; }

    // Access the array of bar properties (NB. no range checks on these.)
    BarDataType& Bar(INT32 n);                  //{ return m_vecBars[n]; }
    const BarDataType& Bar(INT32 n) const;      //{ return m_vecBars[n]; }

    // Add a new bar property to the end of the array, returning its new index, or
    // UINT_MAX for an overflow condition.
    size_t Add(const BarDataType& bdt);

    // Changes entry n to be the new bar property in an undoable manner.
    BOOL MakeChange(INT32 n, const BarDataType& bdt);

    // Node copying.
    virtual Node* SimpleCopy();
    virtual void PolyCopyNodeContents(NodeRenderable* pNodeCopy);

protected:
    virtual UINT32 GetNodeSize() const;
    void CopyNodeContents(NodeBarProperty* pCopy);

    // Version 2 native streaming.  
    virtual BOOL WritePreChildrenNative(BaseCamelotFilter*);

    // Version 2 web streaming.
    virtual BOOL CanWriteChildrenWeb(BaseCamelotFilter*);
    virtual BOOL WritePreChildrenWeb(BaseCamelotFilter*);
    virtual BOOL WriteBeginChildRecordsWeb(BaseCamelotFilter*);
    virtual BOOL WriteEndChildRecordsWeb(BaseCamelotFilter*);

private:
    // Data.
    std::vector<BarDataType> m_vecBars;         // indexable array of bar properties
    size_t m_nCount;                            // how many properties are in the array
    BarDataType m_NoBar;

public:
    // Debugging.
#if DEBUG_TREE  
    virtual void GetDebugDetails(StringBase* pStr);
    virtual void ShowDebugTreeDetails() const;
#endif
};


// The maximum number of bars the user may have.
const size_t MAX_BAR_PROPERTIES = 100;



/**********************************************************************************************
>   class CCAPI NodeSetSentinel : public Node

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/9/99
    Purpose:    Dummy node that has one instance of each different Wix ObjectName attribute 
                also applied to it.  Every document has one of these nodes after the last
                default attribute and before the first chapter.  Whenever a new name
                is first applied to any objects in the document, it is also applied
                to this node; similarly, whenever a name is deleted (ie. hidden) from
                a document, it is also deleted from this node.  Hence, during the normal
                course of creating or deleting objects with particular names, even if the
                last object which has a name is deleted by the user, the name still exists
                as a single attribute applied to this node, will remain an active item
                in the Attribute gallery, and can be saved out in the native format.  And
                when the user creates or deletes names that never refer to any objects,
                the action always result in tree manipulations and are properly integrated
                into the undo system.
    SeeAlso:    Node; NodeSetProperty; NameGallery
**********************************************************************************************/

class CCAPI NodeSetSentinel : public Node
{
    CC_DECLARE_DYNAMIC(NodeSetSentinel);
public:
    // Creation & destruction.
    NodeSetSentinel();
    NodeSetSentinel(Node* pContext, AttachNodeDirection eDir);

    // Set names.
    virtual BOOL IsSetCandidate() const;
    TemplateAttribute* GetNameAttr(const StringBase& strName) const;

    // Set properties.
    NodeSetProperty* FindPropertyNode(const StringBase& strName) const;
    NodeSetProperty* CreatePropertyNode(const StringBase& strName);

    NodeBarProperty* FindBarProperty();

    BOOL TargetsExist() const;

    // Fix-ups of loaded/imported Wix ObjectName attributes.
    BOOL OnLoadName(BaseCamelotFilter* pFilter, TemplateAttribute* pImportedName);

    // virtual override of Node::AllowOp, to prevent AllowOp calls
    // travelling up the tree hierarchy.
    virtual BOOL AllowOp(ObjChangeParam *pParam, BOOL SetOpPermissionState,
                                                 BOOL DoPreTriggerEdit);
protected:
    // Version 2 native streaming.  Children written automatically (the default).
    virtual BOOL WritePreChildrenNative(BaseCamelotFilter*);

    // Version 2 web streaming.  These overrides prevent the node or its children
    // from being written to web files, so as to exclude information used strictly
    // for editing, ie. unreferenced set names and set properties.
    virtual BOOL CanWriteChildrenWeb(BaseCamelotFilter*);
    virtual BOOL WritePreChildrenWeb(BaseCamelotFilter*);
    virtual BOOL WriteBeginChildRecordsWeb(BaseCamelotFilter*);
    virtual BOOL WriteEndChildRecordsWeb(BaseCamelotFilter*);

    // Copying.
    virtual UINT32 GetNodeSize() const;
    virtual Node* SimpleCopy();

public:
    // Debugging.
#if DEBUG_TREE  
    virtual void GetDebugDetails(StringBase* pStr);
    virtual void ShowDebugTreeDetails() const;
#endif
};

#endif  /* !NGSENTRY_H */

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