/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   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 .

 */

#include <sal/config.h>

#include <sal/log.hxx>

#include <osl/diagnose.h>

#include <algorithm>

#include <cstddef>

#include <utility>

#include <vcl/textdata.hxx>

#include "TextLine.hxx"

#include "textdat2.hxx"

TextSelection::TextSelection()

{

}

TextSelection::TextSelection( const TextPaM& rPaM ) :

    maStartPaM( rPaM ), maEndPaM( rPaM )

{

}

TextSelection::TextSelection( const TextPaM& rStart, const TextPaM& rEnd ) :

    maStartPaM( rStart ), maEndPaM( rEnd )

{

}

void TextSelection::Justify()

{

    if ( maEndPaM < maStartPaM )

    {

        TextPaM aTemp( maStartPaM );

        maStartPaM = maEndPaM;

        maEndPaM = aTemp;

    }

}

TETextPortionList::TETextPortionList()

{

}

TETextPortionList::~TETextPortionList()

{

    Reset();

}

TETextPortion& TETextPortionList::operator[]( std::size_t nPos )

{

    return maPortions[ nPos ];

}

std::vector<TETextPortion>::iterator TETextPortionList::begin()

{

    return maPortions.begin();

}

std::vector<TETextPortion>::const_iterator TETextPortionList::begin() const

{

    return maPortions.begin();

}

std::vector<TETextPortion>::iterator TETextPortionList::end()

{

    return maPortions.end();

}

std::vector<TETextPortion>::const_iterator TETextPortionList::end() const

{

    return maPortions.end();

}

bool TETextPortionList::empty() const

{

    return maPortions.empty();

}

std::size_t TETextPortionList::size() const

{

    return maPortions.size();

}

std::vector<TETextPortion>::iterator TETextPortionList::erase( const std::vector<TETextPortion>::iterator& aIter )

{

    return maPortions.erase( aIter );

}

std::vector<TETextPortion>::iterator TETextPortionList::insert( const std::vector<TETextPortion>::iterator& aIter,

                                                                 const TETextPortion& rTP )

{

    return maPortions.insert( aIter, rTP );

}

void TETextPortionList::push_back( const TETextPortion& rTP )

{

    maPortions.push_back( rTP );

}

void TETextPortionList::Reset()

{

    maPortions.clear();

}

void TETextPortionList::DeleteFromPortion( std::size_t nDelFrom )

{

    SAL_WARN_IF( ( nDelFrom >= maPortions.size() ) && ( (nDelFrom != 0) || (!maPortions.empty()) ), "vcl", "DeleteFromPortion: Out of range" );

    maPortions.erase( maPortions.begin() + nDelFrom, maPortions.end() );

}

std::size_t TETextPortionList::FindPortion( sal_Int32 nCharPos, sal_Int32& nPortionStart, bool bPreferStartingPortion )

{

    // find left portion at nCharPos at portion border

    sal_Int32 nTmpPos = 0;

    for ( std::size_t nPortion = 0; nPortion < maPortions.size(); nPortion++ )

    {

        TETextPortion& rPortion = maPortions[ nPortion ];

        nTmpPos += rPortion.GetLen();

        if ( nTmpPos >= nCharPos )

        {

            // take this one if we don't prefer the starting portion, or if it's the last one

            if ( ( nTmpPos != nCharPos ) || !bPreferStartingPortion || ( nPortion == maPortions.size() - 1 ) )

            {

                nPortionStart = nTmpPos - rPortion.GetLen();

                return nPortion;

            }

        }

    }

    OSL_FAIL( "FindPortion: Not found!" );

    return ( maPortions.size() - 1 );

}

TEParaPortion::TEParaPortion( TextNode* pN )

    : mpNode {pN}

    , mnInvalidPosStart {0}

    , mnInvalidDiff {0}

    , mbInvalid {true}

    , mbSimple {false}

{

}

TEParaPortion::~TEParaPortion()

{

}

void TEParaPortion::MarkInvalid( sal_Int32 nStart, sal_Int32 nDiff )

{

    if ( !mbInvalid )

    {

        mnInvalidPosStart = ( nDiff >= 0 ) ? nStart : ( nStart + nDiff );

        mnInvalidDiff = nDiff;

    }

    else

    {

        // simple consecutive typing

        if ( ( nDiff > 0 ) && ( mnInvalidDiff > 0 ) &&

             ( ( mnInvalidPosStart+mnInvalidDiff ) == nStart ) )

        {

            mnInvalidDiff = mnInvalidDiff + nDiff;

        }

        // simple consecutive deleting

        else if ( ( nDiff < 0 ) && ( mnInvalidDiff < 0 ) && ( mnInvalidPosStart == nStart ) )

        {

            mnInvalidPosStart = mnInvalidPosStart + nDiff;

            mnInvalidDiff = mnInvalidDiff + nDiff;

        }

        else

        {

            SAL_WARN_IF( ( nDiff < 0 ) && ( (nStart+nDiff) < 0 ), "vcl", "MarkInvalid: Diff out of Range" );

            mnInvalidPosStart = std::min( mnInvalidPosStart, nDiff < 0 ? nStart+nDiff : nDiff );

            mnInvalidDiff = 0;

            mbSimple = false;

        }

    }

    maWritingDirectionInfos.clear();

    mbInvalid = true;

}

void TEParaPortion::MarkSelectionInvalid( sal_Int32 nStart )

{

    if ( !mbInvalid )

    {

        mnInvalidPosStart = nStart;

    }

    else

    {

        mnInvalidPosStart = std::min( mnInvalidPosStart, nStart );

    }

    maWritingDirectionInfos.clear();

    mnInvalidDiff = 0;

    mbInvalid = true;

    mbSimple = false;

}

std::vector<TextLine>::size_type TEParaPortion::GetLineNumber( sal_Int32 nChar, bool bInclEnd )

{

    for ( std::vector<TextLine>::size_type nLine = 0; nLine < maLines.size(); nLine++ )

    {

        TextLine& rLine = maLines[ nLine ];

        if ( ( bInclEnd && ( rLine.GetEnd() >= nChar ) ) ||

             ( rLine.GetEnd() > nChar ) )

        {

            return nLine;

        }

    }

    // Then it should be at the end of the last line

    OSL_ENSURE(nChar == maLines.back().GetEnd(), "wrong Index");

    OSL_ENSURE(!bInclEnd, "Line not found: FindLine");

    return ( maLines.size() - 1 );

}

void TEParaPortion::CorrectValuesBehindLastFormattedLine( sal_uInt16 nLastFormattedLine )

{

    sal_uInt16 nLines = maLines.size();

    SAL_WARN_IF( !nLines, "vcl", "CorrectPortionNumbersFromLine: Empty portion?" );

    if ( nLastFormattedLine >= ( nLines - 1 ) )

        return;

    const TextLine& rLastFormatted = maLines[ nLastFormattedLine ];

    const TextLine& rUnformatted = maLines[ nLastFormattedLine+1 ];

    std::ptrdiff_t nPortionDiff = rUnformatted.GetStartPortion() - rLastFormatted.GetEndPortion();

    sal_Int32 nTextDiff = rUnformatted.GetStart() - rLastFormatted.GetEnd();

    nTextDiff++;    // LastFormatted.GetEnd() was inclusive => subtracted one too much!

    // The first unformatted one has to start exactly one portion past the last

    // formatted one.

    // If a portion got split in the changed row, nLastEnd could be > nNextStart!

    std::ptrdiff_t nPDiff = -( nPortionDiff-1 );

    const sal_Int32 nTDiff = -( nTextDiff-1 );

    if ( !(nPDiff || nTDiff) )

        return;

    for ( sal_uInt16 nL = nLastFormattedLine+1; nL < nLines; nL++ )

    {

        TextLine& rLine = maLines[ nL ];

        rLine.SetStartPortion(rLine.GetStartPortion() + nPDiff);

        rLine.SetEndPortion(rLine.GetEndPortion() + nPDiff);

        rLine.SetStart(rLine.GetStart() + nTDiff);

        rLine.SetEnd(rLine.GetEnd() + nTDiff);

        rLine.SetValid();

    }

}

TEParaPortions::~TEParaPortions()

{

}

TextHint::TextHint( SfxHintId Id ) : SfxHint( Id ), mnValue(0)

{

}

TextHint::TextHint( SfxHintId Id, sal_Int32 nValue ) : SfxHint( Id ), mnValue(nValue)

{

}

TEIMEInfos::TEIMEInfos( const TextPaM& rPos, OUString _aOldTextAfterStartPos )

    : aOldTextAfterStartPos(std::move(_aOldTextAfterStartPos))

    , aPos(rPos)

    , nLen(0)

    , bWasCursorOverwrite(false)

{

}

TEIMEInfos::~TEIMEInfos()

{

}

void TEIMEInfos::CopyAttribs(const ExtTextInputAttr* pA, sal_Int32 nL)

{

    nLen = nL;

    pAttribs.reset( new ExtTextInputAttr[ nL ] );

    std::copy_n(pA, nL, pAttribs.get());

}

void TEIMEInfos::DestroyAttribs()

{

    pAttribs.reset();

    nLen = 0;

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */