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koffice/lib/kotext/kohyphen/kohyphen.h

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5.4 KiB

/******************************************************************************
* Copyright (C) 2002 by Alexander Dymo <cloudtemple@mskat.net> *
* Copyright (C) 2002-2003 by Lukas Tinkl <lukas.tinkl@suse.cz> *
* Copyright (C) 2003 David Faure <faure@kde.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library General Public License as *
* published by the Free Software Foundation; either version 2 of the *
* License, or (at your option) any later version. *
* *
* This library 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 *
* Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public License *
* along with this library; see the file COPYING.LIB. If not, write to *
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef KOHYPHEN_H
#define KOHYPHEN_H
#include <tqmap.h>
#include <tqstring.h>
#include "hyphen.h"
class KoHyphenatorException{
public:
KoHyphenatorException(const TQString& MessageText): messageText(MessageText) {}
TQString message() const { return messageText; }
private:
TQString messageText;
};
/**
* @short The KoHyphenator class provides an interface to the libhnj hyphenation library
* @author Alexander Dymo (cloudtemple@mksat.net)
* @author Lukas Tinkl (lukas.tinkl@suse.cz)
*
* The KoHyphenator class provides an interface to the libhnj hyphenation library.
*
* Libhnj library was written for TeX and adopted to use with OpenOffice.
* This library tries to adopt it for KDE.
*
* It handles the hyphenation dictionary loading for the specified language.
* TQString -> char* conversion is done by using of settings in
* dicts.xml file in datadir/koffice/hyphdicts (dictionaries are also located
* there).
*
* The @ref hyphenate() functions returns TQString containing hyphenation
* chars (0xad) or char* in format of hnj_hyphen_hyphenate() function from
* libhnj library.
*/
class KoHyphenator{
public:
/**
* Returns the single KoHyphenator instance (singleton pattern)
* Beware that this might throw an exception in case of an installation problem!
* Catch KoHyphenatorExceptions!
*/
static KoHyphenator* self();
~KoHyphenator();
/**
* Checks if the letter in position pos is placed before the hyphen.
*
* Can be used to check if the line break at given position
* should be forced and automatic hyphen added.
*/
bool checkHyphenPos(const TQString& str, int pos, const TQString& lang) const;
/**
* Returns the pointer to the string in hnj_hyphen_hyphenate() format
* (that is hyphenation function from underlying libhnj library).
*
* The string is array of integer numbers. Each odd number marks
* that hyphen can be added after the character in the position
* of that number. The returned string must be deleted with "delete[] x;"
*
* For example, for the string "example" the returning value is "01224400".
*
* @param str String to be hyphenated.
*
* @param lang Language for the hyphenation dictionary to be loaded.
* Language: two chars containing the ISO 639-1 code
* (for example "en", "uk", etc.) (could be lang_COUNTRY as well).
*/
char *hyphens(const TQString& str, const TQString& lang) const;
/**
* Hyphenates the string str and returns the string with
* hyphenation marks in it.
*
* @param str String to be hyphenated.
*
* @param lang Language for the hyphenation dictionary to be loaded.
* Language: two chars containing the ISO 639-1 code
* (for example "en", "uk", etc.) (could be lang_COUNTRY as well).
*/
TQString hyphenate(const TQString& str, const TQString& lang) const;
private:
/**
* @return the encoding of dictionary for the language @p lang.
*/
TQTextCodec* codecForLang(const TQString& lang) const;
KoHyphenator();
HyphenDict *dict(const TQString &lang) const;
TQMap<TQString, HyphenDict*> dicts;
struct EncodingStruct {
EncodingStruct() // for TQMap
: encoding(), codec(0L) {}
EncodingStruct(const TQCString& _encoding)
: encoding(_encoding), codec(0L) {}
TQCString encoding;
TQTextCodec* codec;
};
typedef TQMap<TQString, EncodingStruct> EncodingMap;
mutable EncodingMap encodings; // key is the language code
static KoHyphenator* s_self;
};
#endif