fontcomp.h

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// $Id: fontcomp.h 1361 2006-06-25 16:43:38Z alex $
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 */
/********************************************************************************************

>   fontcomp.h

    Author:     Andy_Hayward (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/08/96
    Purpose:    The document font component

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

#ifndef INC_FONT_COMPONENT
#define INC_FONT_COMPONENT

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

>   class FontComponentClass : public DocComponentClass

    Author:     Andy_Hayward (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/08/96
    Base Class: DocComponentClass
    Purpose:    A class that will add Font Components to new documents
    SeeAlso:    class DocComponentClass, class FontComponent

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

class FontComponentClass : public DocComponentClass
{
    CC_DECLARE_DYNAMIC(FontComponentClass)

public:
    static BOOL Init();

    BOOL AddComponent(BaseDocument *pDoc);
};

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

>   FontComponentListItem : public ListItem

    Author:     Andy_Hayward (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/08/96
    Base Class: public ListItem
    Purpose:    List item object used by class FontComponentList
    SeeAlso:    class ListItem, class FontComponentList

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

class FontComponentListItem : public ListItem
{
    CC_DECLARE_DYNAMIC(FontComponentListItem);

    friend class FontComponentList;
    friend class FontComponent;
    
public:
    FontComponentListItem();
    ~FontComponentListItem();
private:
    // mIsBold          - echo's IsBold flag in typeface attributes
    // mIsItalic        - echo's IsItalic flag in typeface attributes
    // mRecentlyCreated - set to TRUE by the constructor, FALSE before any import and export.
    //                    hence we can find the new items created during an import or export
    //                    should we have to remove them (the import/export operated failed.)
    // mFontHandle      - echo's the FontHandle in the typeface attribute
    // mRecordNumber    - Record number of font definition record while loading or saving.
    // mFontName        - Full font name (currently set to "" since we've can't find it)
    // mFaceName        - Face name of the font, i.e. "Arial" or "Times New Roman"
    // mFontClass       - Font class of font - from font manager
    // mCCPanose        - Panose number of font.
                         
    BOOL mIsBold;
    BOOL mIsItalic;
    BOOL mRecentlyCreated;
    WORD mFontHandle;
    INT32 mRecordNumber;
    String_64 mFullFontName;
    String_64 mTypeFaceName;
    FontClass mFontClass;
    CCPanose mPanoseNumber;
};

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

>   class FontComponentList : public List

    Author:     Andy_Hayward (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/08/06
    Base Class: public List
    Purpose:    List header object for the list of font information held by FontComponent objects
    SeeAlso:    class FontComponentListItem, class FontComponent

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

class FontComponentList : public List
{
    CC_DECLARE_DYNAMIC(FontComponentList);

// constructor, destructor
public:
    FontComponentList();
    ~FontComponentList();

// New file format export related functions
public:
    BOOL ExportStart();
    BOOL ExportEnd(BOOL Success);
    FontComponentListItem *ExportFind(WORD FontHandle, BOOL IsBold, BOOL IsItalic);
private:
    FontComponentListItem *ExportFindAux(FontComponentListItem *pItem, WORD FontHandle, BOOL IsBold, BOOL IsItalic);
    BOOL ExportInitialised;

// New file format import related functions
public:
    BOOL ImportStart();
    BOOL ImportEnd(BOOL Success);
    FontComponentListItem *ImportFind(INT32 RecordNumber);
private:
    FontComponentListItem *ImportFindAux(FontComponentListItem *pItem, INT32 RecordNumber);
    BOOL ImportInitialised;
};

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

>   class FontComponent : public DocComponent

    Author:     Andy_Hayward (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/08/96
    Base Class: public DocComponent
    Purpose:    Provides a compoent to the document that handles the saving and loading of
                font definitions to and from the new file format.
    SeeAlso:    class FontComponentList, class DocComponent

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

class FontComponent : public DocComponent
{
    CC_DECLARE_DYNAMIC(FontComponent);

// constructor, destructor
public:
    FontComponent();
    ~FontComponent();

// new file format export related functions
public:
    BOOL StartExport(BaseCamelotFilter *pFilter);
    BOOL EndExport(BaseCamelotFilter *pFilter, BOOL Success);
    INT32 WriteFontDefinition(BaseCamelotFilter *pFilter, WORD FontHandle, BOOL IsBold, BOOL IsItalic);
private:
    INT32 WriteFontRecord(BaseCamelotFilter *pFilter, FontComponentListItem *pItem);
    INT32 WriteTrueTypeRecord(BaseCamelotFilter *pFilter, FontComponentListItem *pItem);
    INT32 WriteATMRecord(BaseCamelotFilter *pFilter, FontComponentListItem *pItem);
    INT32 WriteUnknownRecord(BaseCamelotFilter *pFilter, FontComponentListItem *pItem);
    BOOL ExportInitialised;

// new file format import related functions
public:
    BOOL StartImport(BaseCamelotFilter *pFilter);
    BOOL EndImport(BaseCamelotFilter *pFilter, BOOL Success);
    BOOL ReadFontDefinition(CXaraFileRecord *pRec);
    BOOL GetFontInformation(INT32 RecordNumber, WORD *pFontHandle, BOOL *pIsBold, BOOL *pIsItalic);
private:
    BOOL ReadFontTrueType(CXaraFileRecord *pRec);
    BOOL ReadFontATM(CXaraFileRecord *pRec);
    BOOL ReadFontUnknown(CXaraFileRecord *pRec);
    BOOL ImportInitialised;

// new file format export and import related members
public:
    FontComponentList *pFontList;
    FontManager *pFontManager;
private:
    BOOL ExportCacheFont(FontComponentListItem *pItem);
    
    BOOL ExportCacheFullFontName(FontComponentListItem *pItem);
    BOOL ExportCacheTypeFaceName(FontComponentListItem *pItem);
    BOOL ExportCacheFontClass(FontComponentListItem *pItem);
    BOOL ExportCacheCCPanose(FontComponentListItem *pItem);

    OUTLINETEXTMETRIC *ExportGetOutlineTextMetricStage1(FontComponentListItem *pItem);
    OUTLINETEXTMETRIC *ExportGetOutlineTextMetricStage2(FontComponentListItem *pItem);
        
    BOOL ImportCacheFont(FontComponentListItem *pItem);

private:    // Private link used during Importing to provide warnings to the user
    BaseCamelotFilter *pCamFilter;
    // Private variable which means that during Importing we only warn the user
    // once about problem fonts
    BOOL WarnedBefore;
};

#endif  // INC_FONT_COMPONENT

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