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/* -*- 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 <pam.hxx>
#include <frminf.hxx>
#include <itrtxt.hxx>
sal_Int32 SwTextMargin::GetTextStart() const
{
const OUString &rText = GetInfo().GetText();
const sal_Int32 nEnd = m_nStart + m_pCurr->GetLen();
for( sal_Int32 i = m_nStart; i < nEnd; ++i )
{
const sal_Unicode aChar = rText[i];
if( CH_TAB != aChar && ' ' != aChar )
return i;
}
return nEnd;
}
sal_Int32 SwTextMargin::GetTextEnd() const
{
const OUString &rText = GetInfo().GetText();
const sal_Int32 nEnd = m_nStart + m_pCurr->GetLen();
for( sal_Int32 i = nEnd - 1; i >= m_nStart; --i )
{
const sal_Unicode aChar = rText[i];
if( CH_TAB != aChar && CH_BREAK != aChar && ' ' != aChar )
return i + 1;
}
return m_nStart;
}
// Does the paragraph fit into one line?
bool SwTextFrmInfo::IsOneLine() const
{
const SwLineLayout *pLay = pFrm->GetPara();
if( !pLay )
return false;
// For follows false of course
if( pFrm->GetFollow() )
return false;
pLay = pLay->GetNext();
while( pLay )
{
if( pLay->GetLen() )
return false;
pLay = pLay->GetNext();
}
return true;
}
// Is the line filled for X percent?
bool SwTextFrmInfo::IsFilled( const sal_uInt8 nPercent ) const
{
const SwLineLayout *pLay = pFrm->GetPara();
if( !pLay )
return false;
long nWidth = pFrm->Prt().Width();
nWidth *= nPercent;
nWidth /= 100;
return sal_uInt16(nWidth) <= pLay->Width();
}
// Where does the text start (without whitespace)? (document global)
SwTwips SwTextFrmInfo::GetLineStart( const SwTextCursor &rLine )
{
const sal_Int32 nTextStart = rLine.GetTextStart();
if( rLine.GetStart() == nTextStart )
return rLine.GetLineStart();
SwRect aRect;
if( const_cast<SwTextCursor&>(rLine).GetCharRect( &aRect, nTextStart ) )
return aRect.Left();
return rLine.GetLineStart();
}
// Where does the text start (without whitespace)? (relative in the Frame)
SwTwips SwTextFrmInfo::GetLineStart() const
{
SwTextSizeInfo aInf( const_cast<SwTextFrm*>(pFrm) );
SwTextCursor aLine( const_cast<SwTextFrm*>(pFrm), &aInf );
return GetLineStart( aLine ) - pFrm->Frm().Left() - pFrm->Prt().Left();
}
// Calculates the character's position and returns the middle position
SwTwips SwTextFrmInfo::GetCharPos( sal_Int32 nChar, bool bCenter ) const
{
SWRECTFN( pFrm )
SwFrmSwapper aSwapper( pFrm, true );
SwTextSizeInfo aInf( const_cast<SwTextFrm*>(pFrm) );
SwTextCursor aLine( const_cast<SwTextFrm*>(pFrm), &aInf );
SwTwips nStt, nNext;
SwRect aRect;
if( static_cast<SwTextCursor&>(aLine).GetCharRect( &aRect, nChar ) )
{
if ( bVert )
pFrm->SwitchHorizontalToVertical( aRect );
nStt = (aRect.*fnRect->fnGetLeft)();
}
else
nStt = aLine.GetLineStart();
if( !bCenter )
return nStt - (pFrm->Frm().*fnRect->fnGetLeft)();
if( static_cast<SwTextCursor&>(aLine).GetCharRect( &aRect, nChar+1 ) )
{
if ( bVert )
pFrm->SwitchHorizontalToVertical( aRect );
nNext = (aRect.*fnRect->fnGetLeft)();
}
else
nNext = aLine.GetLineStart();
return (( nNext + nStt ) / 2 ) - (pFrm->Frm().*fnRect->fnGetLeft)();
}
SwPaM *AddPam( SwPaM *pPam, const SwTextFrm* pTextFrm,
const sal_Int32 nPos, const sal_Int32 nLen )
{
if( nLen )
{
// It could be the first
if( pPam->HasMark() )
{
// If the new position is right after the current one, then
// simply extend the Pam
if( nPos == pPam->GetPoint()->nContent.GetIndex() )
{
pPam->GetPoint()->nContent += nLen;
return pPam;
}
pPam = new SwPaM(*pPam, pPam);
}
SwIndex &rContent = pPam->GetPoint()->nContent;
rContent.Assign( const_cast<SwTextNode*>(pTextFrm->GetTextNode()), nPos );
pPam->SetMark();
rContent += nLen;
}
return pPam;
}
// Accumulates the whitespace at line start and end in the Pam
void SwTextFrmInfo::GetSpaces( SwPaM &rPam, bool bWithLineBreak ) const
{
SwTextSizeInfo aInf( const_cast<SwTextFrm*>(pFrm) );
SwTextMargin aLine( const_cast<SwTextFrm*>(pFrm), &aInf );
SwPaM *pPam = &rPam;
bool bFirstLine = true;
do {
if( aLine.GetCurr()->GetLen() )
{
sal_Int32 nPos = aLine.GetTextStart();
// Do NOT include the blanks/tabs from the first line
// in the selection
if( !bFirstLine && nPos > aLine.GetStart() )
pPam = AddPam( pPam, pFrm, aLine.GetStart(),
nPos - aLine.GetStart() );
// Do NOT include the blanks/tabs from the last line
// in the selection
if( aLine.GetNext() )
{
nPos = aLine.GetTextEnd();
if( nPos < aLine.GetEnd() )
{
sal_uInt16 nOff = !bWithLineBreak && CH_BREAK ==
aLine.GetInfo().GetChar( aLine.GetEnd() - 1 )
? 1 : 0;
pPam = AddPam( pPam, pFrm, nPos, aLine.GetEnd() - nPos - nOff );
}
}
}
bFirstLine = false;
}
while( aLine.Next() );
}
// Is there a bullet/symbol etc. at the text position?
// Fonts: CharSet, SYMBOL und DONTKNOW
bool SwTextFrmInfo::IsBullet( sal_Int32 nTextStart ) const
{
SwTextSizeInfo aInf( const_cast<SwTextFrm*>(pFrm) );
SwTextMargin aLine( const_cast<SwTextFrm*>(pFrm), &aInf );
aInf.SetIdx( nTextStart );
return aLine.IsSymbol( nTextStart );
}
// Get first line indent
// The precondition for a positive or negative first line indent:
// All lines (except for the first one) have the same left margin.
// We do not want to be so picky and work with a tolerance of TOLERANCE twips.
SwTwips SwTextFrmInfo::GetFirstIndent() const
{
SwTextSizeInfo aInf( const_cast<SwTextFrm*>(pFrm) );
SwTextCursor aLine( const_cast<SwTextFrm*>(pFrm), &aInf );
const SwTwips nFirst = GetLineStart( aLine );
const SwTwips TOLERANCE = 20;
if( !aLine.Next() )
return 0;
SwTwips nLeft = GetLineStart( aLine );
while( aLine.Next() )
{
if( aLine.GetCurr()->GetLen() )
{
const SwTwips nCurrLeft = GetLineStart( aLine );
if( nLeft + TOLERANCE < nCurrLeft ||
nLeft - TOLERANCE > nCurrLeft )
return 0;
}
}
// At first we only return +1, -1 and 0
if( nLeft == nFirst )
return 0;
if( nLeft > nFirst )
return -1;
return 1;
}
sal_Int32 SwTextFrmInfo::GetBigIndent( sal_Int32& rFndPos,
const SwTextFrm *pNextFrm ) const
{
SwTextSizeInfo aInf( const_cast<SwTextFrm*>(pFrm) );
SwTextCursor aLine( const_cast<SwTextFrm*>(pFrm), &aInf );
SwTwips nNextIndent = 0;
if( pNextFrm )
{
// I'm a single line
SwTextSizeInfo aNxtInf( const_cast<SwTextFrm*>(pNextFrm) );
SwTextCursor aNxtLine( const_cast<SwTextFrm*>(pNextFrm), &aNxtInf );
nNextIndent = GetLineStart( aNxtLine );
}
else
{
// I'm multi-line
if( aLine.Next() )
{
nNextIndent = GetLineStart( aLine );
aLine.Prev();
}
}
if( nNextIndent <= GetLineStart( aLine ) )
return 0;
const Point aPoint( nNextIndent, aLine.Y() );
rFndPos = aLine.GetCrsrOfst( nullptr, aPoint, false );
if( 1 >= rFndPos )
return 0;
// Is on front of a non-space
const OUString& rText = aInf.GetText();
sal_Unicode aChar = rText[rFndPos];
if( CH_TAB == aChar || CH_BREAK == aChar || ' ' == aChar ||
(( CH_TXTATR_BREAKWORD == aChar || CH_TXTATR_INWORD == aChar ) &&
aInf.HasHint( rFndPos ) ) )
return 0;
// and after a space
aChar = rText[rFndPos - 1];
if( CH_TAB != aChar && CH_BREAK != aChar &&
( ( CH_TXTATR_BREAKWORD != aChar && CH_TXTATR_INWORD != aChar ) ||
!aInf.HasHint( rFndPos - 1 ) ) &&
// More than two Blanks!
( ' ' != aChar || ' ' != rText[rFndPos - 2] ) )
return 0;
SwRect aRect;
return aLine.GetCharRect( &aRect, rFndPos )
? static_cast<sal_Int32>(aRect.Left() - pFrm->Frm().Left() - pFrm->Prt().Left())
: 0;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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