unitcomp.h

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// $Id: unitcomp.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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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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The additional rights are to use, modify, and distribute the software
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      Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK.
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=================================XARAHEADEREND============================
 */

// The document component for the document's unit list.

#ifndef INC_UNITCOMP
#define INC_UNITCOMP

//#include "doccomp.h" - in camtypes.h [AUTOMATICALLY REMOVED]

class BaseCamelotFilter;
class CXaraFileRecord;

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

>   class UnitListComponentClass : public DocComponentClass

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/07/96
    Purpose:    Provide a class that will add Unit List components to new documents.
    SeeAlso:    DocComponentClass

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

class UnitListComponentClass : public DocComponentClass
{
    CC_DECLARE_DYNAMIC(UnitListComponentClass)

public:
    static BOOL Init();

    BOOL AddComponent(BaseDocument *);
};

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

>   class UnitListComponent : public DocComponent

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/07/96
    Purpose:    Provide a component that allows us to save out the units for this document
                using the serialisation facilities of the DocComponent base class.
    SeeAlso:    DocComponent

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

class UnitListComponent : public DocComponent
{
    CC_DECLARE_DYNAMIC(UnitListComponent)

public:
    UnitListComponent();
    //UnitListComponent(ColourList *);
    virtual ~UnitListComponent();

public:
    // Usual document component functions...

    // These are the Camelot Version 2 Web and Native file related functions
    virtual BOOL StartImport(BaseCamelotFilter *pFilter);
    virtual BOOL EndImport(BaseCamelotFilter *pFilter, BOOL Success);
    virtual BOOL StartExport(BaseCamelotFilter *pFilter);
    virtual BOOL EndExport(BaseCamelotFilter *pFilter, BOOL Success);

    BOOL ImportDefaultDisplayUnits(CXaraFileRecord* pCXaraFileRecord, Document * pDoc);
    BOOL ImportUserUnitDefinition(CXaraFileRecord* pCXaraFileRecord, Document * pDoc, INT32 Tag);

    // The public way of importing and exporting units and thier references for the new native/web filters
    Unit* GetReadUnitReference(INT32 UnitRef);
    INT32 GetWriteUnitReference(Unit* pUnit, BaseCamelotFilter *pFilter);
    INT32 GetWriteUnitReference(UnitType type, BaseCamelotFilter *pFilter);

private:
    UnitType GetUnitType(INT32 ExportUnitType);

    BOOL ExportUserUnits(BaseCamelotFilter *pFilter);
    INT32 ExportUnitDefinition(BaseCamelotFilter *pFilter, Unit* pUnit);
    BOOL ExportDefaultDisplayUnits(BaseCamelotFilter *pFilter);
    INT32 GetExportUnitType(UnitType type);

    // The current unit list and document we are supposed to be working with
    DocUnitList* pDocUnitList;
    Document*   pDocument; 

    // A hash table from unit pointers to thier exported references.
    CMapPtrToLong      *pExpUserUnitMap;
    CMapLongToPtr      *pImpUserUnitMap;

private:    // Private link used during Importing to provide warnings to the user
    BaseCamelotFilter *pCamFilter;
    BOOL WarnedBefore;
};

#endif  // INC_UNITCOMP

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