/**************************************************************
 * 
 * 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_editeng.hxx"

#include <algorithm>
#include <svl/style.hxx>
#include <com/sun/star/i18n/WordType.hpp>

#include <svl/itemset.hxx>
#include <editeng/editeng.hxx>
#include <editeng/editdata.hxx>
#include <editeng/outliner.hxx>
#include <editeng/unoedhlp.hxx>
#include <svl/poolitem.hxx>
#include <vcl/wrkwin.hxx>
#include <editeng/eeitem.hxx>

#include <editeng/unoforou.hxx>
#include <editeng/unofored.hxx>
#include <editeng/outlobj.hxx>

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

//------------------------------------------------------------------------

SvxOutlinerForwarder::SvxOutlinerForwarder( Outliner& rOutl, sal_Bool bOutlText /* = sal_False */ ) :
	rOutliner( rOutl ),
    bOutlinerText( bOutlText ),
    mpAttribsCache( NULL ),
    mpParaAttribsCache( NULL ),
    mnParaAttribsCache( 0 )
{
}

SvxOutlinerForwarder::~SvxOutlinerForwarder()
{
	flushCache();
}

sal_uInt32 SvxOutlinerForwarder::GetParagraphCount() const
{
	return rOutliner.GetParagraphCount();
}

sal_uInt16 SvxOutlinerForwarder::GetTextLen( sal_uInt32 nParagraph ) const
{
	return rOutliner.GetEditEngine().GetTextLen( nParagraph );
}

String SvxOutlinerForwarder::GetText( const ESelection& rSel ) const
{
	//!	GetText(ESelection) sollte es wohl auch mal am Outliner geben
	//	solange den Hack fuer die EditEngine uebernehmen:
	EditEngine* pEditEngine = (EditEngine*)&rOutliner.GetEditEngine();
	return pEditEngine->GetText( rSel, LINEEND_LF );
}

static SfxItemSet ImplOutlinerForwarderGetAttribs( const ESelection& rSel, sal_Bool bOnlyHardAttrib, EditEngine& rEditEngine )
{
	if( rSel.nStartPara == rSel.nEndPara )
	{
		sal_uInt8 nFlags = 0;

		switch( bOnlyHardAttrib )
		{
		case EditEngineAttribs_All:
			nFlags = GETATTRIBS_ALL;
			break;
		case EditEngineAttribs_HardAndPara:
			nFlags = GETATTRIBS_PARAATTRIBS|GETATTRIBS_CHARATTRIBS;
			break;
		case EditEngineAttribs_OnlyHard:
			nFlags = GETATTRIBS_CHARATTRIBS;
			break;
		default:
			DBG_ERROR("unknown flags for SvxOutlinerForwarder::GetAttribs");
		}
		return rEditEngine.GetAttribs( rSel.nStartPara, rSel.nStartPos, rSel.nEndPos, nFlags );
	}
	else
	{
		return rEditEngine.GetAttribs( rSel, bOnlyHardAttrib );
	}
}

SfxItemSet SvxOutlinerForwarder::GetAttribs( const ESelection& rSel, sal_Bool bOnlyHardAttrib ) const
{
	if( mpAttribsCache && ( 0 == bOnlyHardAttrib ) )
	{
		// have we the correct set in cache?
		if( ((SvxOutlinerForwarder*)this)->maAttribCacheSelection.IsEqual(rSel) )
		{
			// yes! just return the cache
			return *mpAttribsCache;
		}
		else
		{
			// no, we need delete the old cache
			delete mpAttribsCache;
			mpAttribsCache = NULL;
		}
	}

	//!	gibt's das nicht am Outliner ???
	//!	und warum ist GetAttribs an der EditEngine nicht const?
	EditEngine& rEditEngine = (EditEngine&)rOutliner.GetEditEngine();

	SfxItemSet aSet( ImplOutlinerForwarderGetAttribs( rSel, bOnlyHardAttrib, rEditEngine ) );

	if( 0 == bOnlyHardAttrib )
	{
		mpAttribsCache = new SfxItemSet( aSet );
		maAttribCacheSelection = rSel;
	}

	SfxStyleSheet* pStyle = rEditEngine.GetStyleSheet( rSel.nStartPara );
	if( pStyle )
		aSet.SetParent( &(pStyle->GetItemSet() ) );

	return aSet;
}

SfxItemSet SvxOutlinerForwarder::GetParaAttribs( sal_uInt32 nPara ) const
{
	if( mpParaAttribsCache )
	{
		// have we the correct set in cache?
		if( nPara == mnParaAttribsCache )
		{
			// yes! just return the cache
			return *mpParaAttribsCache;
		}
		else
		{
			// no, we need delete the old cache
			delete mpParaAttribsCache;
			mpParaAttribsCache = NULL;
		}
	}

	mpParaAttribsCache = new SfxItemSet( rOutliner.GetParaAttribs( nPara ) );
	mnParaAttribsCache = nPara;

	EditEngine& rEditEngine = (EditEngine&)rOutliner.GetEditEngine();

	SfxStyleSheet* pStyle = rEditEngine.GetStyleSheet( nPara );
	if( pStyle )
		mpParaAttribsCache->SetParent( &(pStyle->GetItemSet() ) );

	return *mpParaAttribsCache;
}

void SvxOutlinerForwarder::SetParaAttribs( sal_uInt32 nPara, const SfxItemSet& rSet )
{
	flushCache();

	const SfxItemSet* pOldParent = rSet.GetParent();
	if( pOldParent )
		((SfxItemSet*)&rSet)->SetParent( NULL );

	rOutliner.SetParaAttribs( nPara, rSet );

	if( pOldParent )
		((SfxItemSet*)&rSet)->SetParent( pOldParent );
}

void SvxOutlinerForwarder::RemoveAttribs( const ESelection& rSelection, sal_Bool bRemoveParaAttribs, sal_uInt16 nWhich )
{
    rOutliner.RemoveAttribs( rSelection, bRemoveParaAttribs, nWhich );
}

SfxItemPool* SvxOutlinerForwarder::GetPool() const
{
	return rOutliner.GetEmptyItemSet().GetPool();
}

void SvxOutlinerForwarder::GetPortions( sal_uInt32 nPara, SvUShorts& rList ) const
{
	((EditEngine&)rOutliner.GetEditEngine()).GetPortions( nPara, rList );
}

void SvxOutlinerForwarder::QuickInsertText( const String& rText, const ESelection& rSel )
{
	flushCache();
	if( rText.Len() == 0 )
	{
		rOutliner.QuickDelete( rSel );
	}
	else
	{
		rOutliner.QuickInsertText( rText, rSel );
	}
}

void SvxOutlinerForwarder::QuickInsertLineBreak( const ESelection& rSel )
{
	flushCache();
	rOutliner.QuickInsertLineBreak( rSel );
}

void SvxOutlinerForwarder::QuickInsertField( const SvxFieldItem& rFld, const ESelection& rSel )
{
	flushCache();
	rOutliner.QuickInsertField( rFld, rSel );
}

void SvxOutlinerForwarder::QuickSetAttribs( const SfxItemSet& rSet, const ESelection& rSel )
{
	flushCache();
	rOutliner.QuickSetAttribs( rSet, rSel );
}

XubString SvxOutlinerForwarder::CalcFieldValue( const SvxFieldItem& rField, sal_uInt32 nPara, sal_uInt16 nPos, Color*& rpTxtColor, Color*& rpFldColor )
{
	return rOutliner.CalcFieldValue( rField, nPara, nPos, rpTxtColor, rpFldColor );
}

void SvxOutlinerForwarder::FieldClicked( const SvxFieldItem& rField, sal_uInt16 nPara, xub_StrLen nPos )
{
    rOutliner.FieldClicked( rField, nPara, nPos );
}

sal_Bool SvxOutlinerForwarder::IsValid() const
{
    // cannot reliably query outliner state
    // while in the middle of an update
    return rOutliner.GetUpdateMode();
}

extern sal_uInt16 GetSvxEditEngineItemState( EditEngine& rEditEngine, const ESelection& rSel, sal_uInt16 nWhich );

sal_uInt16 SvxOutlinerForwarder::GetItemState( const ESelection& rSel, sal_uInt16 nWhich ) const
{
	return GetSvxEditEngineItemState( (EditEngine&)rOutliner.GetEditEngine(), rSel, nWhich );
}

sal_uInt16 SvxOutlinerForwarder::GetItemState( sal_uInt32 nPara, sal_uInt16 nWhich ) const
{
	const SfxItemSet& rSet = rOutliner.GetParaAttribs( nPara );
	return rSet.GetItemState( nWhich );
}


void SvxOutlinerForwarder::flushCache()
{
	if( mpAttribsCache )
	{
		delete mpAttribsCache;
		mpAttribsCache = NULL;
	}

	if( mpParaAttribsCache )
	{
		delete mpParaAttribsCache;
		mpParaAttribsCache = NULL;
	}
}

LanguageType SvxOutlinerForwarder::GetLanguage( sal_uInt16 nPara, sal_uInt16 nIndex ) const
{
    return rOutliner.GetLanguage(nPara, nIndex);
}

sal_uInt16 SvxOutlinerForwarder::GetFieldCount( sal_uInt16 nPara ) const
{
    return rOutliner.GetEditEngine().GetFieldCount(nPara);
}

EFieldInfo SvxOutlinerForwarder::GetFieldInfo( sal_uInt16 nPara, sal_uInt16 nField ) const
{
    return rOutliner.GetEditEngine().GetFieldInfo( nPara, nField );
}

EBulletInfo SvxOutlinerForwarder::GetBulletInfo( sal_uInt16 nPara ) const
{
    return rOutliner.GetBulletInfo( nPara );
}

Rectangle SvxOutlinerForwarder::GetCharBounds( sal_uInt16 nPara, sal_uInt16 nIndex ) const
{
    // #101701#
    // EditEngine's 'internal' methods like GetCharacterBounds()
    // don't rotate for vertical text.
    Size aSize( rOutliner.CalcTextSize() );
    ::std::swap( aSize.Width(), aSize.Height() );
    bool bIsVertical( rOutliner.IsVertical() == sal_True );

    // #108900# Handle virtual position one-past-the end of the string
    if( nIndex >= GetTextLen(nPara) )
    {
        Rectangle aLast;

        if( nIndex )
        {
            // use last character, if possible
            aLast = rOutliner.GetEditEngine().GetCharacterBounds( EPosition(nPara, nIndex-1) );

            // move at end of this last character, make one pixel wide
            aLast.Move( aLast.Right() - aLast.Left(), 0 );
            aLast.SetSize( Size(1, aLast.GetHeight()) );

            // take care for CTL
            aLast = SvxEditSourceHelper::EEToUserSpace( aLast, aSize, bIsVertical );
        }
        else
        {
            // #109864# Bounds must lie within the paragraph
            aLast = GetParaBounds( nPara );

            // #109151# Don't use paragraph height, but line height
            // instead. aLast is already CTL-correct
            if( bIsVertical)
                aLast.SetSize( Size( rOutliner.GetLineHeight(nPara,0), 1 ) );
            else
                aLast.SetSize( Size( 1, rOutliner.GetLineHeight(nPara,0) ) );
        }

        return aLast;
    }
    else
    {
        return SvxEditSourceHelper::EEToUserSpace( rOutliner.GetEditEngine().GetCharacterBounds( EPosition(nPara, nIndex) ),
                                                   aSize, bIsVertical );
    }
}

Rectangle SvxOutlinerForwarder::GetParaBounds( sal_uInt16 nPara ) const
{
    Point aPnt = rOutliner.GetDocPosTopLeft( nPara );
    Size aSize = rOutliner.CalcTextSize();

    if( rOutliner.IsVertical() )
    {
        // #101701#
        // Hargl. Outliner's 'external' methods return the rotated
        // dimensions, 'internal' methods like GetTextHeight( n )
        // don't rotate.
        sal_uLong nWidth = rOutliner.GetTextHeight( nPara );

        return Rectangle( aSize.Width() - aPnt.Y() - nWidth, 0, aSize.Width() - aPnt.Y(), aSize.Height() );
    }
    else
    {
        sal_uLong nHeight = rOutliner.GetTextHeight( nPara );

        return Rectangle( 0, aPnt.Y(), aSize.Width(), aPnt.Y() + nHeight );
    }
}

MapMode SvxOutlinerForwarder::GetMapMode() const
{
    return rOutliner.GetRefMapMode();
}

OutputDevice* SvxOutlinerForwarder::GetRefDevice() const
{
    return rOutliner.GetRefDevice();
}

sal_Bool SvxOutlinerForwarder::GetIndexAtPoint( const Point& rPos, sal_uInt16& nPara, sal_uInt16& nIndex ) const
{
    // #101701#
    Size aSize( rOutliner.CalcTextSize() );
    ::std::swap( aSize.Width(), aSize.Height() );
    Point aEEPos( SvxEditSourceHelper::UserSpaceToEE( rPos,
                                                      aSize,
                                                      rOutliner.IsVertical() == sal_True ));

    EPosition aDocPos = rOutliner.GetEditEngine().FindDocPosition( aEEPos );

    nPara = aDocPos.nPara;
    nIndex = aDocPos.nIndex;

    return sal_True;
}

sal_Bool SvxOutlinerForwarder::GetWordIndices( sal_uInt16 nPara, sal_uInt16 nIndex, sal_uInt16& nStart, sal_uInt16& nEnd ) const
{
    ESelection aRes = rOutliner.GetEditEngine().GetWord( ESelection(nPara, nIndex, nPara, nIndex), com::sun::star::i18n::WordType::DICTIONARY_WORD );

    if( aRes.nStartPara == nPara &&
        aRes.nStartPara == aRes.nEndPara )
    {
        nStart = aRes.nStartPos;
        nEnd = aRes.nEndPos;

        return sal_True;
    }

    return sal_False;
}
sal_Bool SvxOutlinerForwarder::GetAttributeRun( sal_uInt16& nStartIndex, sal_uInt16& nEndIndex, sal_uInt32 nPara, sal_uInt16 nIndex, sal_Bool bInCell ) const
{
    return SvxEditSourceHelper::GetAttributeRun( nStartIndex, nEndIndex, rOutliner.GetEditEngine(), nPara, nIndex, bInCell );
}

sal_uInt16 SvxOutlinerForwarder::GetLineCount( sal_uInt16 nPara ) const
{
    return static_cast < sal_uInt16 >( rOutliner.GetLineCount(nPara) );
}

sal_uInt16 SvxOutlinerForwarder::GetLineLen( sal_uInt16 nPara, sal_uInt16 nLine ) const
{
    return rOutliner.GetLineLen(nPara, nLine);
}
    
void SvxOutlinerForwarder::GetLineBoundaries( /*out*/sal_uInt16 &rStart, /*out*/sal_uInt16 &rEnd, sal_uInt16 nPara, sal_uInt16 nLine ) const
{
    return rOutliner.GetEditEngine().GetLineBoundaries( rStart, rEnd, nPara, nLine );
}
    
sal_uInt16 SvxOutlinerForwarder::GetLineNumberAtIndex( sal_uInt16 nPara, sal_uInt16 nIndex ) const
{
    return rOutliner.GetEditEngine().GetLineNumberAtIndex( nPara, nIndex );
}    

sal_Bool SvxOutlinerForwarder::QuickFormatDoc( sal_Bool )
{
    rOutliner.QuickFormatDoc();

    return sal_True;
}

sal_Bool SvxOutlinerForwarder::Delete( const ESelection& rSelection )
{
	flushCache();
    rOutliner.QuickDelete( rSelection );
    rOutliner.QuickFormatDoc();

    return sal_True;
}

sal_Bool SvxOutlinerForwarder::InsertText( const String& rStr, const ESelection& rSelection )
{
	flushCache();
    rOutliner.QuickInsertText( rStr, rSelection );
    rOutliner.QuickFormatDoc();

    return sal_True;
}

sal_Int16 SvxOutlinerForwarder::GetDepth( sal_uInt16 nPara ) const
{
    DBG_ASSERT( nPara < GetParagraphCount(), "SvxOutlinerForwarder::GetDepth: Invalid paragraph index");

    Paragraph* pPara = rOutliner.GetParagraph( nPara );

    sal_Int16 nLevel = -1;

    if( pPara )
        nLevel = rOutliner.GetDepth( nPara );

    return nLevel;
}

sal_Bool SvxOutlinerForwarder::SetDepth( sal_uInt16 nPara, sal_Int16 nNewDepth )
{
    DBG_ASSERT( nPara < GetParagraphCount(), "SvxOutlinerForwarder::SetDepth: Invalid paragraph index");

    if( (nNewDepth >= -1) && (nNewDepth <= 9) && (nPara < GetParagraphCount()) )
    {
        Paragraph* pPara = rOutliner.GetParagraph( nPara );
        if( pPara )
        {
            rOutliner.SetDepth( pPara, nNewDepth );

//			const bool bOutlinerText = pSdrObject && (pSdrObject->GetObjInventor() == SdrInventor) && (pSdrObject->GetObjIdentifier() == OBJ_OUTLINETEXT);
            if( bOutlinerText )
                rOutliner.SetLevelDependendStyleSheet( nPara );

            return sal_True;
        }
    }

    return sal_False;
}

sal_Int16 SvxOutlinerForwarder::GetNumberingStartValue( sal_uInt16 nPara )
{
    if( nPara < GetParagraphCount() )
    {
        return rOutliner.GetNumberingStartValue( nPara );
    }
    else
    {
        DBG_ERROR( "SvxOutlinerForwarder::GetNumberingStartValue)(), Invalid paragraph index");
        return -1;
    }
}

void SvxOutlinerForwarder::SetNumberingStartValue(  sal_uInt16 nPara, sal_Int16 nNumberingStartValue )
{
    if( nPara < GetParagraphCount() )
    {
        rOutliner.SetNumberingStartValue( nPara, nNumberingStartValue );
    }
    else
    {
        DBG_ERROR( "SvxOutlinerForwarder::SetNumberingStartValue)(), Invalid paragraph index");
    }
}

sal_Bool SvxOutlinerForwarder::IsParaIsNumberingRestart( sal_uInt16 nPara )
{
    if( nPara < GetParagraphCount() )
    {
        return rOutliner.IsParaIsNumberingRestart( nPara );
    }
    else
    {
        DBG_ERROR( "SvxOutlinerForwarder::IsParaIsNumberingRestart)(), Invalid paragraph index");
        return sal_False;
    }
}

void SvxOutlinerForwarder::SetParaIsNumberingRestart(  sal_uInt16 nPara, sal_Bool bParaIsNumberingRestart )
{
    if( nPara < GetParagraphCount() )
    {
        rOutliner.SetParaIsNumberingRestart( nPara, bParaIsNumberingRestart );
    }
    else
    {
        DBG_ERROR( "SvxOutlinerForwarder::SetParaIsNumberingRestart)(), Invalid paragraph index");
    }
}

const SfxItemSet * SvxOutlinerForwarder::GetEmptyItemSetPtr()
{
    EditEngine& rEditEngine = const_cast< EditEngine& >( rOutliner.GetEditEngine() );
    return &rEditEngine.GetEmptyItemSet();
}

void SvxOutlinerForwarder::AppendParagraph()
{
    EditEngine& rEditEngine = const_cast< EditEngine& >( rOutliner.GetEditEngine() );
    rEditEngine.InsertParagraph( rEditEngine.GetParagraphCount(), String::EmptyString() );
}

xub_StrLen SvxOutlinerForwarder::AppendTextPortion( sal_uInt16 nPara, const String &rText, const SfxItemSet & /*rSet*/ )
{
    xub_StrLen nLen = 0;

    EditEngine& rEditEngine = const_cast< EditEngine& >( rOutliner.GetEditEngine() );
    sal_uInt32 nParaCount = rEditEngine.GetParagraphCount();
    DBG_ASSERT( nPara < nParaCount, "paragraph index out of bounds" );
    if (/*0 <= nPara && */nPara < nParaCount)
    {
        nLen = rEditEngine.GetTextLen( nPara );
        rEditEngine.QuickInsertText( rText, ESelection( nPara, nLen, nPara, nLen ) );
    }

    return nLen;
}

void  SvxOutlinerForwarder::CopyText(const SvxTextForwarder& rSource)
{
    const SvxOutlinerForwarder* pSourceForwarder = dynamic_cast< const SvxOutlinerForwarder* >( &rSource );
    if( !pSourceForwarder )
        return;
    OutlinerParaObject* pNewOutlinerParaObject = pSourceForwarder->rOutliner.CreateParaObject();
    rOutliner.SetText( *pNewOutlinerParaObject );
    delete pNewOutlinerParaObject;
}

//------------------------------------------------------------------------


sal_Int16 SvxTextForwarder::GetNumberingStartValue( sal_uInt16 )
{
    return -1;
}

void SvxTextForwarder::SetNumberingStartValue( sal_uInt16, sal_Int16 )
{
}

sal_Bool SvxTextForwarder::IsParaIsNumberingRestart( sal_uInt16  )
{
    return sal_False;
}

void SvxTextForwarder::SetParaIsNumberingRestart( sal_uInt16, sal_Bool )
{
}

//------------------------------------------------------------------------