308 lines
11 KiB
C++
308 lines
11 KiB
C++
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/*************************************************************************
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*
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* $RCSfile: scriptinfo.hxx,v $
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*
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* $Revision: 1.2 $
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*
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* last change: $Author: rt $ $Date: 2003-10-30 10:18:14 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#ifndef _SCRIPTINFO_HXX
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#define _SCRIPTINFO_HXX
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#ifndef _SVSTDARR_HXX
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#define _SVSTDARR_SHORTS
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#define _SVSTDARR_BYTES
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#define _SVSTDARR_USHORTS
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#define _SVSTDARR_XUB_STRLEN
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#include <svtools/svstdarr.hxx>
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#endif
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#ifndef _LANG_HXX
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#include <tools/lang.hxx>
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#endif
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class SwWrongList;
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class SwTxtNode;
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class Point;
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/*************************************************************************
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* class SwScanner
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* Hilfsklasse, die beim Spellen die Worte im gewuenschten Bereich
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* nacheinander zur Verfuegung stellt.
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*************************************************************************/
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class SwScanner
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{
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XubString aWord;
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const SwWrongList* pWrong;
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const SwTxtNode& rNode;
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xub_StrLen nEndPos;
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xub_StrLen nBegin;
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xub_StrLen nLen;
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LanguageType aCurrLang;
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USHORT nWordType;
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BOOL bReverse;
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BOOL bStart;
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BOOL bIsOnlineSpell;
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public:
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SwScanner( const SwTxtNode& rNd, const SwWrongList* pWrng, USHORT nWordType,
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xub_StrLen nStart, xub_StrLen nEnde, BOOL bRev, BOOL bOS );
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// This next word function tries to find the language for the next word
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// It should currently _not_ be used for spell checking, and works only for
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// ! bReverse
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BOOL NextWord();
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BOOL NextWord( LanguageType aLang );
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const XubString& GetWord() const { return aWord; }
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xub_StrLen GetBegin() const { return nBegin; }
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xub_StrLen GetEnd() const { return nBegin + nLen; }
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xub_StrLen GetLen() const { return nLen; }
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};
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/*************************************************************************
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* class SwScriptInfo
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*
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* encapsultes information about script changes
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*************************************************************************/
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class SwScriptInfo
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{
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private:
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SvXub_StrLens aScriptChg;
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SvBytes aScriptType;
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SvXub_StrLens aDirChg;
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SvBytes aDirType;
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SvXub_StrLens aKashida;
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SvXub_StrLens aCompChg;
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SvXub_StrLens aCompLen;
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SvBytes aCompType;
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xub_StrLen nInvalidityPos;
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BYTE nDefaultDir;
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void UpdateBidiInfo( const String& rTxt );
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public:
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enum CompType { KANA, SPECIAL_LEFT, SPECIAL_RIGHT, NONE };
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inline SwScriptInfo() : nInvalidityPos( 0 ), nDefaultDir( 0 ) {};
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// determines script changes
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void InitScriptInfo( const SwTxtNode& rNode, sal_Bool bRTL );
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void InitScriptInfo( const SwTxtNode& rNode );
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// set/get position from which data is invalid
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inline void SetInvalidity( const xub_StrLen nPos );
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inline xub_StrLen GetInvalidity() const { return nInvalidityPos; };
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// get default direction for paragraph
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inline BYTE GetDefaultDir() const { return nDefaultDir; };
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// array operations, nCnt refers to array position
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inline USHORT CountScriptChg() const;
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inline xub_StrLen GetScriptChg( const USHORT nCnt ) const;
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inline BYTE GetScriptType( const USHORT nCnt ) const;
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inline USHORT CountDirChg() const;
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inline xub_StrLen GetDirChg( const USHORT nCnt ) const;
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inline BYTE GetDirType( const USHORT nCnt ) const;
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inline USHORT CountKashida() const;
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inline xub_StrLen GetKashida( const USHORT nCnt ) const;
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inline USHORT CountCompChg() const;
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inline xub_StrLen GetCompStart( const USHORT nCnt ) const;
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inline xub_StrLen GetCompLen( const USHORT nCnt ) const;
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inline BYTE GetCompType( const USHORT nCnt ) const;
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// "high" level operations, nPos refers to string position
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xub_StrLen NextScriptChg( const xub_StrLen nPos ) const;
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BYTE ScriptType( const xub_StrLen nPos ) const;
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// Returns the position of the next direction level change.
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// If bLevel is set, the position of the next level which is smaller
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// than the level at position nPos is returned. This is required to
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// obtain the end of a SwBidiPortion
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xub_StrLen NextDirChg( const xub_StrLen nPos,
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const BYTE* pLevel = 0 ) const;
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BYTE DirType( const xub_StrLen nPos ) const;
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BYTE CompType( const xub_StrLen nPos ) const;
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// examines the range [ nStart, nStart + nEnd ] if there are kanas
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// returns start index of kana entry in array, otherwise USHRT_MAX
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USHORT HasKana( xub_StrLen nStart, const xub_StrLen nEnd ) const;
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// modifies the kerning array according to a given compress value
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long Compress( long* pKernArray, xub_StrLen nIdx, xub_StrLen nLen,
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const USHORT nCompress, const USHORT nFontHeight,
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Point* pPoint = NULL ) const;
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/** Performes a kashida justification on the kerning array
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@descr Add some extra space for kashida justification to the
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positions in the kerning array.
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@param pKernArray
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The printers kerning array. Optional.
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@param pScrArray
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The screen kerning array. Optional.
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@param nIdx
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Start referring to the paragraph.
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@param nLen
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The number of characters to be considered.
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@param nSpace
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The value which has to be added to a kashida opportunity.
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@return The number of kashida opportunities in the given range
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*/
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USHORT KashidaJustify( long* pKernArray ,long* pScrArray,
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xub_StrLen nIdx, xub_StrLen nLen,
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USHORT nSpace = 0 ) const;
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/** Checks if language is one of the 16 Arabic languages
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@descr Checks if language is one of the 16 Arabic languages
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@param aLang
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The language which has to be checked.
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@return Returns if the language is an Arabic language
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*/
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static BOOL IsArabicLanguage( LanguageType aLang );
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/** Performes a thai justification on the kerning array
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@descr Add some extra space for thai justification to the
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positions in the kerning array.
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@param rTxt
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The String
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@param pKernArray
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The printers kerning array. Optional.
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@param pScrArray
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The screen kerning array. Optional.
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@param nIdx
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Start referring to the paragraph.
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@param nLen
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The number of characters to be considered.
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@param nSpace
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The value which has to be added to the cells.
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@return The number of extra spaces in the given range
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*/
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static USHORT ThaiJustify( const XubString& rTxt, long* pKernArray,
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long* pScrArray, xub_StrLen nIdx,
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xub_StrLen nLen, USHORT nSpace = 0 );
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static SwScriptInfo* GetScriptInfo( const SwTxtNode& rNode,
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sal_Bool bAllowInvalid = sal_False );
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static BYTE WhichFont( xub_StrLen nIdx, const String* pTxt, const SwScriptInfo* pSI );
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};
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inline void SwScriptInfo::SetInvalidity( const xub_StrLen nPos )
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{
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if ( nPos < nInvalidityPos )
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nInvalidityPos = nPos;
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};
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inline USHORT SwScriptInfo::CountScriptChg() const { return aScriptChg.Count(); }
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inline xub_StrLen SwScriptInfo::GetScriptChg( const USHORT nCnt ) const
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{
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ASSERT( nCnt < aScriptChg.Count(),"No ScriptChange today!");
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return aScriptChg[ nCnt ];
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}
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inline BYTE SwScriptInfo::GetScriptType( const xub_StrLen nCnt ) const
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{
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ASSERT( nCnt < aScriptChg.Count(),"No ScriptType today!");
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return aScriptType[ nCnt ];
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}
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inline USHORT SwScriptInfo::CountDirChg() const { return aDirChg.Count(); }
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inline xub_StrLen SwScriptInfo::GetDirChg( const USHORT nCnt ) const
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{
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ASSERT( nCnt < aDirChg.Count(),"No DirChange today!");
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return aDirChg[ nCnt ];
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}
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inline BYTE SwScriptInfo::GetDirType( const xub_StrLen nCnt ) const
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{
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ASSERT( nCnt < aDirChg.Count(),"No DirType today!");
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return aDirType[ nCnt ];
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}
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inline USHORT SwScriptInfo::CountKashida() const { return aKashida.Count(); }
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inline xub_StrLen SwScriptInfo::GetKashida( const USHORT nCnt ) const
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{
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ASSERT( nCnt < aKashida.Count(),"No Kashidas today!");
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return aKashida[ nCnt ];
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}
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inline USHORT SwScriptInfo::CountCompChg() const { return aCompChg.Count(); };
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inline xub_StrLen SwScriptInfo::GetCompStart( const USHORT nCnt ) const
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{
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ASSERT( nCnt < aCompChg.Count(),"No CompressionStart today!");
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return aCompChg[ nCnt ];
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}
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inline xub_StrLen SwScriptInfo::GetCompLen( const USHORT nCnt ) const
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{
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ASSERT( nCnt < aCompChg.Count(),"No CompressionLen today!");
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return aCompLen[ nCnt ];
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}
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inline BYTE SwScriptInfo::GetCompType( const USHORT nCnt ) const
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{
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ASSERT( nCnt < aCompChg.Count(),"No CompressionType today!");
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return aCompType[ nCnt ];
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}
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#endif
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