xref: /aoo4110/main/sw/source/ui/wrtsh/delete.cxx (revision b1cdbd2c)

/**************************************************************
 *
 * 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 <wrtsh.hxx>
#include <crsskip.hxx>
#include <swcrsr.hxx>
#include <editeng/lrspitem.hxx> // #i23725#
// --> OD 2006-07-10 #134369#
#ifndef _VIEW_HXX
#include <view.hxx>
#endif
#ifndef _DRAWBASE_HXX
#include <drawbase.hxx>
#endif
// <--

inline void SwWrtShell::OpenMark()
{
	StartAllAction();
	ResetCursorStack();
	KillPams();
	SetMark();
}

inline void SwWrtShell::CloseMark( sal_Bool bOkFlag )
{
	if( bOkFlag )
		UpdateAttr();
	else
		SwapPam();

	ClearMark();
	EndAllAction();
}

// #i23725#
sal_Bool SwWrtShell::TryRemoveIndent()
{
    sal_Bool bResult = sal_False;

    SfxItemSet aAttrSet(GetAttrPool(), RES_LR_SPACE, RES_LR_SPACE);
    GetCurAttr(aAttrSet);

    SvxLRSpaceItem aItem = (const SvxLRSpaceItem &)aAttrSet.Get(RES_LR_SPACE);
    short aOldFirstLineOfst = aItem.GetTxtFirstLineOfst();

    if (aOldFirstLineOfst > 0)
    {
        aItem.SetTxtFirstLineOfst(0);
        bResult = sal_True;
    }
    else if (aOldFirstLineOfst < 0)
    {
        aItem.SetTxtFirstLineOfst(0);
        aItem.SetLeft(aItem.GetLeft() + aOldFirstLineOfst);

        bResult = sal_True;
    }
    else if (aItem.GetLeft() != 0)
    {
        aItem.SetLeft(0);
        bResult = sal_True;
    }

    if (bResult)
    {
        aAttrSet.Put(aItem);
        SetAttrSet(aAttrSet);
    }

    return bResult;
}

/*------------------------------------------------------------------------
 Beschreibung:	Zeile loeschen
------------------------------------------------------------------------*/



long SwWrtShell::DelLine()
{
	ACT_KONTEXT(this);
	ResetCursorStack();
		// alten Cursor merken
	Push();
	ClearMark();
	SwCrsrShell::LeftMargin();
	SetMark();
	SwCrsrShell::RightMargin();
//Warum soll hier noch ein Zeichen in der naechsten Zeile geloescht werden?
//	if(!IsEndOfPara())
//		SwCrsrShell::Right();
	long nRet = Delete();
	Pop(sal_False);
	if( nRet )
		UpdateAttr();
	return nRet;
}



long SwWrtShell::DelToStartOfLine()
{
	OpenMark();
	SwCrsrShell::LeftMargin();
	long nRet = Delete();
	CloseMark( 0 != nRet );
	return nRet;
}



long SwWrtShell::DelToEndOfLine()
{
	OpenMark();
	SwCrsrShell::RightMargin();
	long nRet = Delete();
	CloseMark( 0 != nRet );
	return 1;
}

long SwWrtShell::DelLeft()
{
	// wenns denn ein Fly ist, wech damit
	int nSelType = GetSelectionType();
    const int nCmp = nsSelectionType::SEL_FRM | nsSelectionType::SEL_GRF | nsSelectionType::SEL_OLE | nsSelectionType::SEL_DRW;
	if( nCmp & nSelType )
	{
        /*  #108205# Remember object's position. */
        Point aTmpPt = GetObjRect().TopLeft();

		DelSelectedObj();

        /*  #108205# Set cursor to remembered position. */
        SetCrsr(&aTmpPt);

		LeaveSelFrmMode();
		UnSelectFrm();

		nSelType = GetSelectionType();
		if ( nCmp & nSelType )
		{
			EnterSelFrmMode();
			GotoNextFly();
		}

		return 1L;
	}

	// wenn eine Selektion existiert, diese loeschen.
	if ( IsSelection() )
	{
		if( !IsBlockMode() || HasSelection() )
        {
             //OS: wieder einmal Basic: ACT_KONTEXT muss vor
            //EnterStdMode verlassen werden!
            {
                ACT_KONTEXT(this);
                ResetCursorStack();
                Delete();
                UpdateAttr();
            }
            if( IsBlockMode() )
            {
                NormalizePam();
                ClearMark();
                EnterBlockMode();
            }
            else
                EnterStdMode();
            return 1L;
        }
        else
            EnterStdMode();
	}

	// JP 29.06.95: nie eine davor stehende Tabelle loeschen.
	sal_Bool bSwap = sal_False;
	const SwTableNode * pWasInTblNd = SwCrsrShell::IsCrsrInTbl();

	if( SwCrsrShell::IsSttPara())
	{
        // --> FME 2007-02-15 #i4032# Don't actually call a 'delete' if we
        // changed the table cell, compare DelRight().
        const SwStartNode * pSNdOld = pWasInTblNd ?
                                      GetSwCrsr()->GetNode()->FindTableBoxStartNode() :
                                      0;
        // <--

        /* If the cursor is at the beginning of a paragraph, try to step
           backwards. On failure we are done. */
		if( !SwCrsrShell::Left(1,CRSR_SKIP_CHARS) )
			return 0;

		/* If the cursor entered or left a table (or both) we are done. No step
           back. */
        const SwTableNode* pIsInTblNd = SwCrsrShell::IsCrsrInTbl();
        if( pIsInTblNd != pWasInTblNd )
			return 0;

        const SwStartNode* pSNdNew = pIsInTblNd ?
                                     GetSwCrsr()->GetNode()->FindTableBoxStartNode() :
                                     0;

        // --> FME 2007-02-15 #i4032# Don't actually call a 'delete' if we
        // changed the table cell, compare DelRight().
        if ( pSNdOld != pSNdNew )
            return 0;
        // <--

		OpenMark();
		SwCrsrShell::Right(1,CRSR_SKIP_CHARS);
		SwCrsrShell::SwapPam();
		bSwap = sal_True;
	}
	else
	{
		OpenMark();
		SwCrsrShell::Left(1,CRSR_SKIP_CHARS);
	}
	long nRet = Delete();
	if( !nRet && bSwap )
		SwCrsrShell::SwapPam();
	CloseMark( 0 != nRet );
	return nRet;
}

long SwWrtShell::DelRight()
{
		// werden verodert, wenn Tabellenselektion vorliegt;
        // wird hier auf nsSelectionType::SEL_TBL umgesetzt.
	long nRet = 0;
	int nSelection = GetSelectionType();
	if(nSelection & nsSelectionType::SEL_TBL_CELLS)
		nSelection = nsSelectionType::SEL_TBL;
	if(nSelection & nsSelectionType::SEL_TXT)
		nSelection = nsSelectionType::SEL_TXT;

	const SwTableNode * pWasInTblNd = NULL;

    switch( nSelection & ~(nsSelectionType::SEL_BEZ) )
	{
	case nsSelectionType::SEL_POSTIT:
    case nsSelectionType::SEL_TXT:
    case nsSelectionType::SEL_TBL:
    case nsSelectionType::SEL_NUM:
			//	wenn eine Selektion existiert, diese loeschen.
		if( IsSelection() )
		{
            if( !IsBlockMode() || HasSelection() )
            {
                //OS: wieder einmal Basic: ACT_KONTEXT muss vor
                //EnterStdMode verlassen werden!
                {
                    ACT_KONTEXT(this);
                    ResetCursorStack();
                    Delete();
                    UpdateAttr();
                }
                if( IsBlockMode() )
                {
                    NormalizePam();
                    ClearMark();
                    EnterBlockMode();
                }
                else
                    EnterStdMode();
                nRet = 1L;
                break;
            }
            else
                EnterStdMode();
		}

		pWasInTblNd = IsCrsrInTbl();

        if( nsSelectionType::SEL_TXT & nSelection && SwCrsrShell::IsSttPara() &&
            SwCrsrShell::IsEndPara() )
        {
            // save cursor
            SwCrsrShell::Push();

            bool bDelFull = false;
            if ( SwCrsrShell::Right(1,CRSR_SKIP_CHARS) )
		    {
            	const SwTableNode * pCurrTblNd = IsCrsrInTbl();
			    bDelFull = pCurrTblNd && pCurrTblNd != pWasInTblNd;
            }

            // restore cursor
            SwCrsrShell::Pop( sal_False );

    	    if( bDelFull )
		    {
    			DelFullPara();
			    UpdateAttr();
			    break;
		    }
		}

        {
            /* #108049# Save the startnode of the current cell */
            const SwStartNode * pSNdOld;
            pSNdOld = GetSwCrsr()->GetNode()->
                FindTableBoxStartNode();

            if ( SwCrsrShell::IsEndPara() )
            {
                // --> FME 2005-01-28 #i41424# Introduced a couple of
                // Push()-Pop() pairs here. The reason for this is that a
                // Right()-Left() combination does not make sure, that
                // the cursor will be in its initial state, because there
                // may be a numbering in front of the next paragraph.
                SwCrsrShell::Push();
                // <--

                if ( SwCrsrShell::Right(1, CRSR_SKIP_CHARS) )
                {
                    if (IsCrsrInTbl() || (pWasInTblNd != IsCrsrInTbl()))
                    {
                        /* #108049# Save the startnode of the current
                            cell. May be different to pSNdOld as we have
                            moved. */
                        const SwStartNode * pSNdNew = GetSwCrsr()
                            ->GetNode()->FindTableBoxStartNode();

                        /* #108049# Only move instead of deleting if we
                            have moved to a different cell */
                        if (pSNdOld != pSNdNew)
                        {
                            SwCrsrShell::Pop( sal_True );
                            break;
                        }
                    }
                }

                // restore cursor
                SwCrsrShell::Pop( sal_False );
            }
        }

		OpenMark();
		SwCrsrShell::Right(1,CRSR_SKIP_CELLS);
		nRet = Delete();
		CloseMark( 0 != nRet );
		break;

    case nsSelectionType::SEL_FRM:
    case nsSelectionType::SEL_GRF:
    case nsSelectionType::SEL_OLE:
    case nsSelectionType::SEL_DRW:
    case nsSelectionType::SEL_DRW_TXT:
    case nsSelectionType::SEL_DRW_FORM:
        {
            /*  #108205# Remember object's position. */
            Point aTmpPt = GetObjRect().TopLeft();

            DelSelectedObj();

            /*  #108205# Set cursor to remembered position. */
            SetCrsr(&aTmpPt);

            LeaveSelFrmMode();
            UnSelectFrm();
            // --> OD 2006-07-06 #134369#
            ASSERT( !IsFrmSelected(),
                    "<SwWrtShell::DelRight(..)> - <SwWrtShell::UnSelectFrm()> should unmark all objects" )
            // <--
            // --> OD 2006-07-10 #134369#
            // leave draw mode, if necessary.
            {
                if (GetView().GetDrawFuncPtr())
                {
                    GetView().GetDrawFuncPtr()->Deactivate();
                    GetView().SetDrawFuncPtr(NULL);
                }
                if ( GetView().IsDrawMode() )
                {
                    GetView().LeaveDrawCreate();
                }
            }
            // <--
        }

        // --> OD 2006-07-07 #134369#
        // <IsFrmSelected()> can't be true - see above.
        // <--
		{
			nSelection = GetSelectionType();
            if ( nsSelectionType::SEL_FRM & nSelection ||
                 nsSelectionType::SEL_GRF & nSelection ||
                 nsSelectionType::SEL_OLE & nSelection ||
                 nsSelectionType::SEL_DRW & nSelection )
			{
				EnterSelFrmMode();
				GotoNextFly();
			}
		}
		nRet = 1;
		break;
	}
	return nRet;
}



long SwWrtShell::DelToEndOfPara()
{
	ACT_KONTEXT(this);
	ResetCursorStack();
	Push();
	SetMark();
	if( !MovePara(fnParaCurr,fnParaEnd))
	{
		Pop(sal_False);
		return 0;
	}
	long nRet = Delete();
	Pop(sal_False);
	if( nRet )
		UpdateAttr();
	return nRet;
}



long SwWrtShell::DelToStartOfPara()
{
	ACT_KONTEXT(this);
	ResetCursorStack();
	Push();
	SetMark();
	if( !MovePara(fnParaCurr,fnParaStart))
	{
		Pop(sal_False);
		return 0;
	}
	long nRet = Delete();
	Pop(sal_False);
	if( nRet )
		UpdateAttr();
	return nRet;
}
/*
 * alle Loeschoperationen sollten mit Find statt mit
 * Nxt-/PrvDelim arbeiten, da letzteren mit Wrap Around arbeiten
 * -- das ist wohl nicht gewuenscht.
 */



long SwWrtShell::DelToStartOfSentence()
{
    if(IsStartOfDoc())
        return 0;
    OpenMark();

    SwCrsrSaveState aSaveState( *(_GetCrsr()) );
    sal_Bool bSuccessfulSelection = _BwdSentence();
    if ( _GetCrsr()->IsInProtectTable( sal_True )
         || _GetCrsr()->IsSelOvr( nsSwCursorSelOverFlags::SELOVER_TOGGLE |
                                  nsSwCursorSelOverFlags::SELOVER_CHANGEPOS ) )
    {
        bSuccessfulSelection = sal_False;
    }
    long nRet = bSuccessfulSelection ? Delete() : 0;

    CloseMark( 0 != nRet );
    return nRet;
}



long SwWrtShell::DelToEndOfSentence()
{
	if(IsEndOfDoc())
		return 0;
	OpenMark();
	long nRet = _FwdSentence() ? Delete() : 0;
	CloseMark( 0 != nRet );
	return nRet;
}



long SwWrtShell::DelNxtWord()
{
	if(IsEndOfDoc())
		return 0;
	ACT_KONTEXT(this);
	ResetCursorStack();
	EnterStdMode();
	SetMark();
	if(IsEndWrd() && !IsSttWrd())
        _NxtWrdForDelete(); // --> OD 2008-08-06 #i92468#
	if(IsSttWrd() || IsEndPara())
        _NxtWrdForDelete(); // --> OD 2008-08-06 #i92468#
	else
		_EndWrd();

	long nRet = Delete();
	if( nRet )
		UpdateAttr();
	else
		SwapPam();
	ClearMark();
	return nRet;
}



long SwWrtShell::DelPrvWord()
{
	if(IsStartOfDoc())
		return 0;
	ACT_KONTEXT(this);
	ResetCursorStack();
	EnterStdMode();
	SetMark();
    if ( !IsSttWrd() ||
         !_PrvWrdForDelete() ) // --> OD 2008-08-06 #i92468#
	{
		if( IsEndWrd() )
		{
            if ( _PrvWrdForDelete() ) // --> OD 2008-08-06 #i92468#
			{
				// skip over all-1 spaces
				short n = -1;
				while( ' ' == GetChar( sal_False, n ))
					--n;

				if( ++n )
					ExtendSelection( sal_False, -n );
			}
		}
		else if( IsSttPara())
            _PrvWrdForDelete(); // --> OD 2008-08-06 #i92468#
		else
			_SttWrd();
	}
	long nRet = Delete();
	if( nRet )
		UpdateAttr();
	else
		SwapPam();
	ClearMark();
	return nRet;
}