xref: /aoo42x/main/sw/source/core/doc/extinput.cxx (revision 329107e9)

/**************************************************************
 *
 * 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.
 *
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sw.hxx"

#include <com/sun/star/i18n/ScriptType.hpp>

#include <editeng/langitem.hxx>
#include <editeng/scripttypeitem.hxx>

#include <vcl/keycodes.hxx>
#include <vcl/cmdevt.hxx>

#include <hintids.hxx>
#include <extinput.hxx>
#include <doc.hxx>
#include <IDocumentUndoRedo.hxx>
#include <index.hxx>
#include <ndtxt.hxx>
#include <txtfrm.hxx>
#include <swundo.hxx>


using namespace ::com::sun::star;

SwExtTextInput::SwExtTextInput( const SwPaM& rPam, Ring* pRing )
	: SwPaM( *rPam.GetPoint(), (SwPaM*)pRing ),
	eInputLanguage(LANGUAGE_DONTKNOW)
{
	bIsOverwriteCursor = sal_False;
	bInsText = sal_True;
}

SwExtTextInput::~SwExtTextInput()
{
	SwDoc *const pDoc = GetDoc();
	if (pDoc->IsInDtor()) { return; /* #i58606# */ }

	SwTxtNode* pTNd = GetPoint()->nNode.GetNode().GetTxtNode();
	if( pTNd )
	{
		SwIndex& rIdx = GetPoint()->nContent;
		xub_StrLen nSttCnt = rIdx.GetIndex(),
				   nEndCnt = GetMark()->nContent.GetIndex();
		if( nEndCnt != nSttCnt )
		{
			if( nEndCnt < nSttCnt )
			{
				xub_StrLen n = nEndCnt; nEndCnt = nSttCnt; nSttCnt = n;
			}

			// damit Undo / Redlining usw. richtig funktioniert,
			// muss ueber die Doc-Schnittstellen gegangen werden !!!
			if(eInputLanguage != LANGUAGE_DONTKNOW)
			{
                // --> FME 2005-02-11 #i41974# Only set language attribute
                // for CJK/CTL scripts.
                bool bLang = true;
                // <--
                sal_uInt16 nWhich = RES_CHRATR_LANGUAGE;
                switch(GetI18NScriptTypeOfLanguage(eInputLanguage))
                {
                    case  i18n::ScriptType::ASIAN:     nWhich = RES_CHRATR_CJK_LANGUAGE; break;
                    case  i18n::ScriptType::COMPLEX:   nWhich = RES_CHRATR_CTL_LANGUAGE; break;
                    default: bLang = false;
                }
                if ( bLang )
                {
                    SvxLanguageItem aLangItem( eInputLanguage, nWhich );
                    pDoc->InsertPoolItem(*this, aLangItem, 0 );
                }
            }
            rIdx = nSttCnt;
			String sTxt( pTNd->GetTxt().Copy( nSttCnt, nEndCnt - nSttCnt ));
			if( bIsOverwriteCursor && sOverwriteText.Len() )
			{
				xub_StrLen nLen = sTxt.Len();
				if( nLen > sOverwriteText.Len() )
				{
					rIdx += sOverwriteText.Len();
					pTNd->EraseText( rIdx, nLen - sOverwriteText.Len() );
					rIdx = nSttCnt;
					pTNd->ReplaceText( rIdx, sOverwriteText.Len(),
											sOverwriteText );
					if( bInsText )
					{
						rIdx = nSttCnt;
                        pDoc->GetIDocumentUndoRedo().StartUndo(
                                UNDO_OVERWRITE, NULL );
						pDoc->Overwrite( *this, sTxt.Copy( 0,
													sOverwriteText.Len() ));
                        pDoc->InsertString( *this,
                            sTxt.Copy( sOverwriteText.Len() ) );
                        pDoc->GetIDocumentUndoRedo().EndUndo(
                                UNDO_OVERWRITE, NULL );
                    }
                }
                else
                {
                    pTNd->ReplaceText( rIdx, nLen,
                            sOverwriteText.Copy( 0, nLen ));
					if( bInsText )
					{
						rIdx = nSttCnt;
						pDoc->Overwrite( *this, sTxt );
					}
				}
			}
			else
			{
                pTNd->EraseText( rIdx, nEndCnt - nSttCnt );

				if( bInsText )
                {
                    pDoc->InsertString( *this, sTxt );
                }
			}
		}
	}
}

void SwExtTextInput::SetInputData( const CommandExtTextInputData& rData )
{
	SwTxtNode* pTNd = GetPoint()->nNode.GetNode().GetTxtNode();
	if( pTNd )
	{
		xub_StrLen nSttCnt = GetPoint()->nContent.GetIndex(),
					nEndCnt = GetMark()->nContent.GetIndex();
		if( nEndCnt < nSttCnt )
		{
			xub_StrLen n = nEndCnt; nEndCnt = nSttCnt; nSttCnt = n;
		}

		SwIndex aIdx( pTNd, nSttCnt );
		const String& rNewStr = rData.GetText();

		if( bIsOverwriteCursor && sOverwriteText.Len() )
		{
			xub_StrLen nReplace = nEndCnt - nSttCnt;
			if( rNewStr.Len() < nReplace )
			{
				// then we must insert from the saved original text
				// some characters
				nReplace = nReplace - rNewStr.Len();
				aIdx += rNewStr.Len();
				pTNd->ReplaceText( aIdx, nReplace,
							sOverwriteText.Copy( rNewStr.Len(), nReplace ));
				aIdx = nSttCnt;
				nReplace = rNewStr.Len();
			}
			else if( sOverwriteText.Len() < nReplace )
			{
				nReplace = nReplace - sOverwriteText.Len();
				aIdx += sOverwriteText.Len();
				pTNd->EraseText( aIdx, nReplace );
				aIdx = nSttCnt;
				nReplace = sOverwriteText.Len();
			}
			else if( (nReplace = sOverwriteText.Len()) > rNewStr.Len() )
				nReplace = rNewStr.Len();

			pTNd->ReplaceText( aIdx, nReplace, rNewStr );
			if( !HasMark() )
				SetMark();
			GetMark()->nContent = aIdx;
		}
		else
		{
			if( nSttCnt < nEndCnt )
			{
				pTNd->EraseText( aIdx, nEndCnt - nSttCnt );
			}

			pTNd->InsertText( rNewStr, aIdx,
					IDocumentContentOperations::INS_EMPTYEXPAND );
			if( !HasMark() )
				SetMark();
		}

		GetPoint()->nContent = nSttCnt;

		if( aAttrs.Count() )
			aAttrs.Remove( 0, aAttrs.Count() );
		if( rData.GetTextAttr() )
			aAttrs.Insert( rData.GetTextAttr(), rData.GetText().Len(), 0 );
	}
}

void SwExtTextInput::SetOverwriteCursor( sal_Bool bFlag )
{
	bIsOverwriteCursor = bFlag;

	SwTxtNode* pTNd;
	if( bIsOverwriteCursor &&
		0 != (pTNd = GetPoint()->nNode.GetNode().GetTxtNode()) )
	{
		xub_StrLen nSttCnt = GetPoint()->nContent.GetIndex(),
					nEndCnt = GetMark()->nContent.GetIndex();
		sOverwriteText = pTNd->GetTxt().Copy( nEndCnt < nSttCnt ? nEndCnt
																: nSttCnt );
		if( sOverwriteText.Len() )
		{
			xub_StrLen nInWrdAttrPos = sOverwriteText.Search( CH_TXTATR_INWORD ),
					nWrdAttrPos = sOverwriteText.Search( CH_TXTATR_BREAKWORD );
			if( nWrdAttrPos < nInWrdAttrPos )
				nInWrdAttrPos = nWrdAttrPos;
			if( STRING_NOTFOUND != nInWrdAttrPos )
				sOverwriteText.Erase( nInWrdAttrPos );
		}
	}
}

// die Doc Schnittstellen:

SwExtTextInput* SwDoc::CreateExtTextInput( const SwPaM& rPam )
{
	SwExtTextInput* pNew = new SwExtTextInput( rPam, pExtInputRing );
	if( !pExtInputRing )
		pExtInputRing = pNew;
	pNew->SetMark();
	return pNew;
}

void SwDoc::DeleteExtTextInput( SwExtTextInput* pDel )
{
	if( pDel == pExtInputRing )
	{
		if( pDel->GetNext() != pExtInputRing )
			pExtInputRing = (SwPaM*)pDel->GetNext();
		else
			pExtInputRing = 0;
	}
	delete pDel;
}

SwExtTextInput* SwDoc::GetExtTextInput( const SwNode& rNd,
										xub_StrLen nCntntPos ) const
{
	SwExtTextInput* pRet = 0;
	if( pExtInputRing )
	{
		sal_uLong nNdIdx = rNd.GetIndex();
		SwExtTextInput* pTmp = (SwExtTextInput*)pExtInputRing;
		do {
			sal_uLong nPt = pTmp->GetPoint()->nNode.GetIndex(),
				  nMk = pTmp->GetMark()->nNode.GetIndex();
			xub_StrLen nPtCnt = pTmp->GetPoint()->nContent.GetIndex(),
				  	   nMkCnt = pTmp->GetMark()->nContent.GetIndex();

			if( nPt < nMk || ( nPt == nMk && nPtCnt < nMkCnt ))
			{
				sal_uLong nTmp = nMk; nMk = nPt; nPt = nTmp;
				nTmp = nMkCnt; nMkCnt = nPtCnt; nPtCnt = (xub_StrLen)nTmp;
			}

			if( nMk <= nNdIdx && nNdIdx <= nPt &&
				( STRING_NOTFOUND == nCntntPos ||
					( nMkCnt <= nCntntPos && nCntntPos <= nPtCnt )))
			{
				pRet = pTmp;
				break;
			}
		} while( pExtInputRing != (pTmp = (SwExtTextInput*)pExtInputRing ) );
	}
	return pRet;
}

SwExtTextInput* SwDoc::GetExtTextInput() const
{
	ASSERT( !pExtInputRing || pExtInputRing == pExtInputRing->GetNext(),
			"more than one InputEngine available" );
	return (SwExtTextInput*)pExtInputRing;
}