Iterator for script changes and attributes inclusive the script changes

2 files changed, 447 insertions, 0 deletions

diff --git a/sw/inc/txatritr.hxx b/sw/inc/txatritr.hxx
new file mode 100644
index 000000000000..97b3207c3836
--- /dev/null
+++ b/sw/inc/txatritr.hxx
@@ -0,0 +1,137 @@
+/*************************************************************************
+ *
+ *  $RCSfile: txatritr.hxx,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: jp $ $Date: 2000-12-21 09:34:37 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+#ifndef _TXATRITR_HXX
+#define _TXATRITR_HXX
+
+#ifndef _SOLAR_H
+#include <tools/solar.h>
+#endif
+#ifndef _SAL_TYPES_H_
+#include <sal/types.h>
+#endif
+#ifndef _SVARRAY_HXX
+#include <svtools/svarray.hxx>
+#endif
+
+class String;
+class SwTxtNode;
+class SwTxtAttr;
+class SfxPoolItem;
+
+
+class SwScriptIterator
+{
+    const String& rText;
+    xub_StrLen nChgPos;
+    sal_uInt16 nCurScript;
+
+public:
+    SwScriptIterator( const String& rStr, xub_StrLen nStart = 0 );
+
+    sal_Bool Next();
+
+    sal_uInt16 GetCurrScript() const        { return nCurScript; }
+    xub_StrLen GetScriptChgPos() const      { return nChgPos; }
+    const String& GetText() const           { return rText; }
+};
+
+
+class SwTxtAttrIterator
+{
+    SwScriptIterator aSIter;
+    SvPtrarr aStack;
+    const SwTxtNode& rTxtNd;
+    const SfxPoolItem *pParaItem, *pCurItem;
+    xub_StrLen nChgPos;
+    sal_uInt16 nAttrPos, nWhichId;
+
+    USHORT GetWhichId() const;
+    void AddToStack( const SwTxtAttr& rAttr );
+    void SearchNextChg();
+
+public:
+    SwTxtAttrIterator( const SwTxtNode& rTxtNd, USHORT nWhichId,
+                        xub_StrLen nStart = 0 );
+
+    sal_Bool Next();
+
+    const SfxPoolItem& GetAttr() const  { return *pCurItem; }
+    xub_StrLen GetChgPos() const        { return nChgPos; }
+};
+
+
+#ifdef ITEMID_LANGUAGE
+
+class SwLanguageIterator : public SwTxtAttrIterator
+{
+public:
+    SwLanguageIterator( const SwTxtNode& rTxtNd, xub_StrLen nStart = 0 )
+        : SwTxtAttrIterator( rTxtNd, RES_CHRATR_LANGUAGE, nStart )
+    {}
+
+    sal_uInt16 GetLanguage() const
+        { return ((SvxLanguageItem&)GetAttr()).GetValue(); }
+};
+
+#endif
+
+
+#endif
diff --git a/sw/source/core/txtnode/txatritr.cxx b/sw/source/core/txtnode/txatritr.cxx
new file mode 100644
index 000000000000..a160f52f8d8a
--- /dev/null
+++ b/sw/source/core/txtnode/txatritr.cxx
@@ -0,0 +1,310 @@
+/*************************************************************************
+ *
+ *  $RCSfile: txatritr.cxx,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: jp $ $Date: 2000-12-21 09:34:25 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+
+#ifndef _HINTIDS_HXX
+#include <hintids.hxx>
+#endif
+
+#ifndef _COM_SUN_STAR_I18N_SCRIPTTYPE_HDL_
+#include <com/sun/star/i18n/ScriptType.hdl>
+#endif
+#ifndef _STRING_HXX
+#include <tools/string.hxx>
+#endif
+#ifndef _SVX_LANGITEM_HXX
+#include <svx/langitem.hxx>
+#endif
+
+#ifndef _TXATRITR_HXX
+#include <txatritr.hxx>
+#endif
+#ifndef _FCHRFMT_HXX
+#include <fchrfmt.hxx>
+#endif
+#ifndef _CHARFMT_HXX
+#include <charfmt.hxx>
+#endif
+#ifndef _BREAKIT_HXX
+#include <breakit.hxx>
+#endif
+#ifndef _NDTXT_HXX
+#include <ndtxt.hxx>
+#endif
+#ifndef _TXATBASE_HXX
+#include <txatbase.hxx>
+#endif
+
+using namespace ::com::sun::star::i18n;
+
+
+SwScriptIterator::SwScriptIterator( const String& rStr, xub_StrLen nStt )
+    : rText( rStr ), nChgPos( rStr.Len() ), nCurScript( ScriptType::WEAK )
+{
+    if( pBreakIt->xBreak.is() )
+    {
+        xub_StrLen nPos = nStt;
+        nCurScript = pBreakIt->xBreak->getScriptType( rText, nPos );
+        if( ScriptType::WEAK == nCurScript )
+        {
+            if( nPos )
+            {
+                nPos = (xub_StrLen)pBreakIt->xBreak->beginOfScript(
+                                                rText, nPos, nCurScript );
+                if( nPos && nPos < rText.Len() )
+                {
+                    nStt = --nPos;
+                    nCurScript = pBreakIt->xBreak->getScriptType( rText,nPos);
+                }
+            }
+        }
+
+        nChgPos = (xub_StrLen)pBreakIt->xBreak->endOfScript(
+                                                rText, nStt, nCurScript );
+    }
+}
+
+sal_Bool SwScriptIterator::Next()
+{
+    sal_Bool bRet = sal_False;
+    if( pBreakIt->xBreak.is() && nChgPos < rText.Len() )
+    {
+        nCurScript = pBreakIt->xBreak->getScriptType( rText, nChgPos );
+        nChgPos = (xub_StrLen)pBreakIt->xBreak->endOfScript(
+                                            rText, nChgPos, nCurScript );
+        bRet = sal_True;
+    }
+    else
+        nChgPos = rText.Len();
+    return bRet;
+}
+
+// --------------------------------------------------------------------
+
+SwTxtAttrIterator::SwTxtAttrIterator( const SwTxtNode& rTNd, USHORT nWhchId,
+                                        xub_StrLen nStt )
+    : aSIter( rTNd.GetTxt(), nStt ), rTxtNd( rTNd ),
+    nChgPos( nStt ), nAttrPos( 0 ), pParaItem( 0 ), nWhichId( nWhchId )
+{
+    SearchNextChg();
+}
+
+sal_Bool SwTxtAttrIterator::Next()
+{
+    sal_Bool bRet = sal_False;
+    if( nChgPos < aSIter.GetText().Len() )
+    {
+        bRet = sal_True;
+        if( aStack.Count() )
+        {
+            do {
+                const SwTxtAttr* pHt = (SwTxtAttr*)aStack[ 0 ];
+                USHORT nEndPos = *pHt->GetEnd();
+                if( nChgPos >= nEndPos )
+                    aStack.Remove( 0 );
+                else
+                    break;
+            } while( aStack.Count() );
+        }
+
+        if( aStack.Count() )
+        {
+            sal_uInt16 nSavePos = nAttrPos;
+            SearchNextChg();
+            if( aStack.Count() )
+            {
+                const SwTxtAttr* pHt = (SwTxtAttr*)aStack[ 0 ];
+                USHORT nEndPos = *pHt->GetEnd();
+                if( nChgPos >= nEndPos )
+                {
+                    nChgPos = nEndPos;
+                    nAttrPos = nSavePos;
+
+                    if( RES_TXTATR_CHARFMT == pHt->Which() )
+                        pCurItem = &pHt->GetCharFmt().GetCharFmt()->
+                                                GetAttr( GetWhichId() );
+                    else
+                        pCurItem = &pHt->GetAttr();
+
+                    aStack.Remove( 0 );
+                }
+            }
+        }
+        else
+            SearchNextChg();
+    }
+    return bRet;
+}
+
+USHORT SwTxtAttrIterator::GetWhichId() const
+{
+    USHORT nRet = nWhichId;
+    switch( nRet )
+    {
+    case RES_CHRATR_LANGUAGE:
+        switch( aSIter.GetCurrScript() )
+        {
+        case ScriptType::ASIAN:     nRet = RES_CHRATR_CJK_LANGUAGE; break;
+        case ScriptType::COMPLEX:   nRet = RES_CHRATR_CTL_LANGUAGE; break;
+        }
+        break;
+    case RES_CHRATR_FONT:
+        switch( aSIter.GetCurrScript() )
+        {
+        case ScriptType::ASIAN:     nRet = RES_CHRATR_CJK_FONT; break;
+        case ScriptType::COMPLEX:   nRet = RES_CHRATR_CTL_FONT; break;
+        }
+        break;
+    case RES_CHRATR_FONTSIZE:
+        switch( aSIter.GetCurrScript() )
+        {
+        case ScriptType::ASIAN:     nRet = RES_CHRATR_CJK_FONTSIZE; break;
+        case ScriptType::COMPLEX:   nRet = RES_CHRATR_CTL_FONTSIZE; break;
+        }
+        break;
+    case RES_CHRATR_WEIGHT:
+        switch( aSIter.GetCurrScript() )
+        {
+        case ScriptType::ASIAN:     nRet = RES_CHRATR_CJK_WEIGHT;   break;
+        case ScriptType::COMPLEX:   nRet = RES_CHRATR_CTL_WEIGHT;   break;
+        }
+        break;
+    case RES_CHRATR_POSTURE:
+        switch( aSIter.GetCurrScript() )
+        {
+        case ScriptType::ASIAN:     nRet = RES_CHRATR_CJK_POSTURE;  break;
+        case ScriptType::COMPLEX:   nRet = RES_CHRATR_CTL_POSTURE;  break;
+        }
+        break;
+    }
+    return nRet;
+}
+
+void SwTxtAttrIterator::AddToStack( const SwTxtAttr& rAttr )
+{
+    void* pAdd = (void*)&rAttr;
+    USHORT nIns = 0, nEndPos = *rAttr.GetEnd();
+    for( ; nIns < aStack.Count(); ++nIns )
+        if( *((SwTxtAttr*)aStack[ nIns ] )->GetEnd() > nEndPos )
+            break;
+
+    aStack.Insert( pAdd, nIns );
+}
+
+void SwTxtAttrIterator::SearchNextChg()
+{
+    USHORT nWh = 0;
+    if( nChgPos == aSIter.GetScriptChgPos() )
+    {
+        aSIter.Next();
+        pParaItem = 0;
+        nAttrPos = 0;       // must be restart at the beginning, because
+                            // some attributes can start before or inside
+                            // the current scripttype!
+        aStack.Remove( 0, aStack.Count() );
+    }
+    if( !pParaItem )
+        pParaItem = &rTxtNd.GetSwAttrSet().Get( nWh = GetWhichId() );
+
+    xub_StrLen nStt = nChgPos;
+    nChgPos = aSIter.GetScriptChgPos();
+    pCurItem = pParaItem;
+
+    const SwpHints* pHts = rTxtNd.GetpSwpHints();
+    if( pHts )
+    {
+        if( !nWh )
+            nWh = GetWhichId();
+
+        const SfxPoolItem* pItem;
+        SwFmt* pFmt;
+        for( ; nAttrPos < pHts->Count(); ++nAttrPos )
+        {
+            const SwTxtAttr* pHt = (*pHts)[ nAttrPos ];
+            const USHORT* pEnd = pHt->GetEnd();
+            const USHORT nHtStt = *pHt->GetStart();
+            if( nHtStt < nStt && ( !pEnd || *pEnd <= nStt ))
+                continue;
+
+            if( nHtStt >= nChgPos )
+                break;
+
+            if( ( nWh == pHt->Which() && 0 != (pItem = &pHt->GetAttr()) ) ||
+                ( RES_TXTATR_CHARFMT == pHt->Which() &&
+                  0 != (pFmt = pHt->GetCharFmt().GetCharFmt()) &&
+                  SFX_ITEM_SET == pFmt->GetItemState( nWh, TRUE, &pItem )) )
+            {
+                if( nHtStt > nStt )
+                {
+                    if( nChgPos > nHtStt )
+                        nChgPos = nHtStt;
+                    break;
+                }
+                AddToStack( *pHt );
+                pCurItem = pItem;
+                if( *pEnd < nChgPos )
+                    nChgPos = *pEnd;
+            }
+        }
+    }
+}
+
+