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/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



#ifndef _UNOTOOLS_FONTCVT_HXX
#define _UNOTOOLS_FONTCVT_HXX

#include <unotools/unotoolsdllapi.h>
#include <tools/string.hxx>

// ------------------
// - FontToSubsFont -
// ------------------

#define FONTTOSUBSFONT_IMPORT                   ((sal_uLong)0x00000001)
#define FONTTOSUBSFONT_EXPORT                   ((sal_uLong)0x00000002)
#define FONTTOSUBSFONT_ONLYOLDSOSYMBOLFONTS     ((sal_uLong)0x00000004)

typedef void* FontToSubsFontConverter;
UNOTOOLS_DLLPUBLIC FontToSubsFontConverter     CreateFontToSubsFontConverter( const String& rFontName, sal_uLong nFlags );
UNOTOOLS_DLLPUBLIC void                        DestroyFontToSubsFontConverter( FontToSubsFontConverter hConverter );
UNOTOOLS_DLLPUBLIC sal_Unicode                 ConvertFontToSubsFontChar( FontToSubsFontConverter hConverter, sal_Unicode c );
UNOTOOLS_DLLPUBLIC String                      GetFontToSubsFontName( FontToSubsFontConverter hConverter );

// ---------------------------
// - StarSymbolToMSMultiFont -
// ---------------------------

class UNOTOOLS_DLLPUBLIC StarSymbolToMSMultiFont
{
public:
    //Returns the name of the best windows symbol font which this char can be
    //mapped to. Sets rChar to the correct position for that font. If no
    //match found, then no name is returned, and rChar is unchanged. If you
    //want to convert a string, you don't want to use this.
    virtual String ConvertChar(sal_Unicode &rChar) = 0;

    //Starts converting the string at position rIndex. It converts as much of
    //the string that can be converted to the same symbol font and returns the
    //name of that font. rIndex is modified to the last index that was
    //converted. Typically you call if continuously until rIndex ==
    //rString.Len() and handle each section as separate 8bit strings using
    //separate fonts. Will return an empty string for a continuous section
    //that has no possible mapping.
    virtual String ConvertString(String &rString, xub_StrLen &rIndex) = 0;
    virtual ~StarSymbolToMSMultiFont() {}
};

//with bPerfect set the converter will only try and convert symbols which have
//perfect mappings to the windows symbols fonts. With it not set, it will
//allow somewhat more dubious transformations that are nevertheless
//recognizably similar. Even in this mode there will be characters that fail.
//The users of this might want to make a distinction between failed characters
//which were inside and those outside the unicode private area.
UNOTOOLS_DLLPUBLIC StarSymbolToMSMultiFont *CreateStarSymbolToMSMultiFont(bool bPerfectOnly=false);
#endif // _UNOTOOLS_FONTCVT_HXX