pd_Style.h

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/* -*- mode: C++; tab-width: 4; c-basic-offset: 4; -*- */

/* AbiWord
 * Copyright (C) 1998 AbiSource, Inc.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  
 * 02111-1307, USA.
 */


#ifndef PD_STYLE_H
#define PD_STYLE_H

#include "ut_types.h"
#include "pt_Types.h"
#include "ut_xml.h"
#include "pp_Property.h"

class pt_PieceTable;

// PD_Style is the representation for an individual style.

class ABI_EXPORT PD_Style
{
public:
    PD_Style(pt_PieceTable * pPT, PT_AttrPropIndex indexAP, const char * szName = NULL, bool bDisplayed = true);
    virtual ~PD_Style();

    inline PT_AttrPropIndex     getIndexAP(void) const  { return m_indexAP; };
    bool                        setIndexAP(PT_AttrPropIndex indexAP);

    bool                    getProperty(const gchar * szName, const gchar *& szValue) const;
    const PP_PropertyType * getPropertyType(const gchar * szName, tProperty_type Type) const;
    bool                    getAttribute(const gchar * szName, const gchar *& szValue) const;
    bool                    getPropertyExpand(const gchar * szName, const gchar *& szValue) const;
    bool                    getAttributeExpand(const gchar * szName, const gchar *& szValue);
    
    PD_Style *              getBasedOn(void) const;
    PD_Style *              getFollowedBy(void) const;

    virtual bool            isUserDefined(void) const { return true; };
    void                    used(UT_sint32 count);
    bool                    isUsed(void) const;
    bool                    isCharStyle(void) const;
    bool                    isList(void) const;
    bool                    isDisplayed(void) const { return m_bDisplayed; }

    bool                    addProperty(const gchar * szName, const gchar * szValue);
    bool                    addProperties(const gchar ** pProperties);
    bool                    setAllAttributes(const gchar ** pAtts);
    bool                    addAttributes(const gchar ** pAtts);
    bool                    getAllProperties( UT_Vector * vProps, UT_sint32 depth);
    bool                    getAllAttributes( UT_Vector * vAttribs, UT_sint32 depth);
    size_t getPropertyCount(void) const;
    size_t getAttributeCount(void) const;
    bool getNthProperty (int ndx, const gchar *&szName,
                 const gchar *&szValue) const;
    bool getNthAttribute (int ndx, const gchar *&szName,
                 const gchar *&szValue) const;

    inline const char * getName (void) const {return m_szName;}

protected:
    bool                    _getPropertyExpand(const gchar * szName, const gchar *& szValue, UT_sint32 iDepth);
    bool                    _getAttributeExpand(const gchar * szName, const gchar *& szValue, UT_sint32 iDepth);

    pt_PieceTable *         m_pPT;
    PT_AttrPropIndex        m_indexAP;

    char *                  m_szName;
    bool                    m_bDisplayed;
    UT_sint32               m_iUsed;

    // lazily-bound attribute caches to speed lookups
    // hence their mutability
    mutable PD_Style *          m_pBasedOn;
    mutable PD_Style *          m_pFollowedBy;
};


// PD_BuiltinStyle 

class ABI_EXPORT PD_BuiltinStyle : public PD_Style
{
public:
    PD_BuiltinStyle(pt_PieceTable * pPT, PT_AttrPropIndex indexAP, const char * szName, bool bDisplayed);
    virtual ~PD_BuiltinStyle();

    virtual bool            isUserDefined(void) const { return (m_indexAP != m_indexAPOrig); };

protected:
    PT_AttrPropIndex        m_indexAPOrig;  // the builtin one
};

#endif /* PD_STYLE_H */

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