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office-gobmx/oox/source/drawingml/textparagraphpropertiescontext.cxx
Mike Kaganski d7e5fa3bd8 Make sanitiseMm100ToTwip simpler and more correct 
The result's absolute value is always smaller than n.
Returning an uncorrected value taken from reversing
multiplication and division order when intermediate
value would overflow is better than arbitrary constant.

Also further deduplicate Twips <-> 100th-mm conversion,
and make sure they all are in a single header.

Using conversion implementation that handles negatives
correctly improves accuracy, as seen in unit tests; e.g.
in testPictureEffectPreservation (the original doc had
"dir" equal to "8100000", while we tested that it was
"8076614" after roundtrip).

Change-Id: Icd027af6238a9f45f916f53f8684506cc959e696
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/110433
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
2021-02-05 17:04:00 +01:00

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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 <drawingml/textparagraphpropertiescontext.hxx>
#include <com/sun/star/text/WritingMode2.hpp>
#include <com/sun/star/style/ParagraphAdjust.hpp>
#include <com/sun/star/xml/sax/SAXException.hpp>
#include <com/sun/star/graphic/XGraphic.hpp>
#include <com/sun/star/awt/Size.hpp>
#include <com/sun/star/uno/Reference.hxx>
#include <svx/unopage.hxx>
#include <sal/log.hxx>
#include <tools/diagnose_ex.h>
#include <tools/UnitConversion.hxx>
#include <drawingml/colorchoicecontext.hxx>
#include <drawingml/misccontexts.hxx>
#include <drawingml/textcharacterpropertiescontext.hxx>
#include <drawingml/fillproperties.hxx>
#include <oox/helper/attributelist.hxx>
#include "textspacingcontext.hxx"
#include "texttabstoplistcontext.hxx"
#include <oox/token/namespaces.hxx>
#include <oox/token/properties.hxx>
#include <oox/token/tokens.hxx>
#include <tools/helpers.hxx>
using namespace ::oox::core;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::xml::sax;
using namespace ::com::sun::star::style;
using namespace ::com::sun::star::text;
using namespace ::com::sun::star::graphic;
namespace oox::drawingml {
namespace {
double lclGetGraphicAspectRatio( const Reference< XGraphic >& rxGraphic )
{
double fRatio = 1.0;
Reference< com::sun::star::beans::XPropertySet > xGraphicPropertySet( rxGraphic, UNO_QUERY_THROW );
css::awt::Size aSizeHmm( 0, 0 );
xGraphicPropertySet->getPropertyValue( "Size100thMM" ) >>= aSizeHmm;
if( aSizeHmm.Width > 0 && aSizeHmm.Height > 0)
return double(aSizeHmm.Width)/double(aSizeHmm.Height);
else
{
css::awt::Size aSourceSizePixel( 0, 0 );
xGraphicPropertySet->getPropertyValue( "SizePixel" ) >>= aSourceSizePixel;
if( aSourceSizePixel.Width > 0 && aSourceSizePixel.Height > 0 )
return double(aSourceSizePixel.Width)/double(aSourceSizePixel.Height);
}
return fRatio;
}
} //namespace
// CT_TextParagraphProperties
TextParagraphPropertiesContext::TextParagraphPropertiesContext( ContextHandler2Helper const & rParent,
const AttributeList& rAttribs,
TextParagraphProperties& rTextParagraphProperties )
: ContextHandler2( rParent )
, mrTextParagraphProperties( rTextParagraphProperties )
, mrBulletList( rTextParagraphProperties.getBulletList() )
{
OUString sValue;
PropertyMap& rPropertyMap( mrTextParagraphProperties.getTextParagraphPropertyMap() );
// ST_TextAlignType
if ( rAttribs.hasAttribute( XML_algn ) )
{
mrTextParagraphProperties.getParaAdjust() = GetParaAdjust( rAttribs.getToken( XML_algn, XML_l ) );
}
// TODO see to do the same with RubyAdjust
// ST_Coordinate32
// sValue = rAttribs.getString( XML_defTabSz ).get(); SJ: we need to be able to set the default tab size for each text object,
// this is possible at the moment only for the whole document.
// sal_Int32 nDefTabSize = ( sValue.getLength() == 0 ? 0 : GetCoordinate( sValue ) );
// TODO
// bool bEaLineBrk = rAttribs.getBool( XML_eaLnBrk, true );
if ( rAttribs.hasAttribute( XML_latinLnBrk ) )
{
bool bLatinLineBrk = rAttribs.getBool( XML_latinLnBrk, true );
rPropertyMap.setProperty( PROP_ParaIsHyphenation, bLatinLineBrk);
}
// TODO see what to do with Asian hyphenation
// ST_TextFontAlignType
// TODO
// sal_Int32 nFontAlign = rAttribs.getToken( XML_fontAlgn, XML_base );
if ( rAttribs.hasAttribute( XML_hangingPunct ) )
{
bool bHangingPunct = rAttribs.getBool( XML_hangingPunct, false );
rPropertyMap.setProperty( PROP_ParaIsHangingPunctuation, bHangingPunct);
}
// ST_Coordinate
if ( rAttribs.hasAttribute( XML_indent ) )
{
sValue = rAttribs.getString( XML_indent ).get();
mrTextParagraphProperties.getFirstLineIndentation() = std::optional< sal_Int32 >( sValue.isEmpty() ? 0 : GetCoordinate( sValue ) );
}
// ST_TextIndentLevelType
// -1 is an invalid value and denote the lack of level
sal_Int32 nLevel = rAttribs.getInteger( XML_lvl, 0 );
if( nLevel > 8 || nLevel < 0 )
{
nLevel = 0;
}
mrTextParagraphProperties.setLevel( static_cast< sal_Int16 >( nLevel ) );
char name[] = "Outline X";
name[8] = static_cast<char>( '1' + nLevel );
const OUString sStyleNameValue( OUString::createFromAscii( name ) );
mrBulletList.setStyleName( sStyleNameValue );
// ST_TextMargin
// ParaLeftMargin
if ( rAttribs.hasAttribute( XML_marL ) )
{
sValue = rAttribs.getString( XML_marL ).get();
mrTextParagraphProperties.getParaLeftMargin() = std::optional< sal_Int32 >( sValue.isEmpty() ? 0 : GetCoordinate( sValue ) );
}
// ParaRightMargin
if ( rAttribs.hasAttribute( XML_marR ) )
{
sValue = rAttribs.getString( XML_marR ).get();
sal_Int32 nMarR = sValue.isEmpty() ? 0 : GetCoordinate( sValue ) ;
rPropertyMap.setProperty( PROP_ParaRightMargin, nMarR);
}
if ( rAttribs.hasAttribute( XML_rtl ) )
{
bool bRtl = rAttribs.getBool( XML_rtl, false );
rPropertyMap.setProperty( PROP_WritingMode, ( bRtl ? WritingMode2::RL_TB : WritingMode2::LR_TB ));
}
}
TextParagraphPropertiesContext::~TextParagraphPropertiesContext()
{
PropertyMap& rPropertyMap( mrTextParagraphProperties.getTextParagraphPropertyMap() );
if ( mrTextParagraphProperties.getLineSpacing().bHasValue )
rPropertyMap.setProperty( PROP_ParaLineSpacing, mrTextParagraphProperties.getLineSpacing().toLineSpacing());
else
rPropertyMap.setProperty( PROP_ParaLineSpacing, css::style::LineSpacing( css::style::LineSpacingMode::PROP, 100 ));
::std::vector< TabStop >::size_type nTabCount = maTabList.size();
if( nTabCount != 0 )
{
Sequence< TabStop > aSeq( nTabCount );
TabStop * aArray = aSeq.getArray();
OSL_ENSURE( aArray != nullptr, "sequence array is NULL" );
::std::copy( maTabList.begin(), maTabList.end(), aArray );
rPropertyMap.setProperty( PROP_ParaTabStops, aSeq);
}
if (mxBlipProps && mxBlipProps->mxFillGraphic.is())
{
mrBulletList.setGraphic( mxBlipProps->mxFillGraphic );
mrBulletList.setBulletAspectRatio( lclGetGraphicAspectRatio(mxBlipProps->mxFillGraphic) );
}
if( mrBulletList.is() )
rPropertyMap.setProperty( PROP_IsNumbering, true);
sal_Int16 nLevel = mrTextParagraphProperties.getLevel();
rPropertyMap.setProperty( PROP_NumberingLevel, nLevel);
rPropertyMap.setProperty( PROP_NumberingIsNumber, true);
if( mrTextParagraphProperties.getParaAdjust() )
rPropertyMap.setProperty( PROP_ParaAdjust, *mrTextParagraphProperties.getParaAdjust());
}
ContextHandlerRef TextParagraphPropertiesContext::onCreateContext( sal_Int32 aElementToken, const AttributeList& rAttribs )
{
switch( aElementToken )
{
case A_TOKEN( lnSpc ): // CT_TextSpacing
return new TextSpacingContext( *this, mrTextParagraphProperties.getLineSpacing() );
case A_TOKEN( spcBef ): // CT_TextSpacing
return new TextSpacingContext( *this, mrTextParagraphProperties.getParaTopMargin() );
case A_TOKEN( spcAft ): // CT_TextSpacing
return new TextSpacingContext( *this, mrTextParagraphProperties.getParaBottomMargin() );
// EG_TextBulletColor
case A_TOKEN( buClrTx ): // CT_TextBulletColorFollowText ???
mrBulletList.mbBulletColorFollowText <<= true;
break;
case A_TOKEN( buClr ): // CT_Color
return new ColorContext( *this, *mrBulletList.maBulletColorPtr );
// EG_TextBulletSize
case A_TOKEN( buSzTx ): // CT_TextBulletSizeFollowText
mrBulletList.setBulletSize(100);
break;
case A_TOKEN( buSzPct ): // CT_TextBulletSizePercent
mrBulletList.setBulletSize( std::lround( GetPercent( rAttribs.getString( XML_val ).get() ) / 1000.f ) );
break;
case A_TOKEN( buSzPts ): // CT_TextBulletSizePoint
mrBulletList.setBulletSize(0);
mrBulletList.setFontSize( static_cast<sal_Int16>(GetTextSize( rAttribs.getString( XML_val ).get() ) ) );
break;
// EG_TextBulletTypeface
case A_TOKEN( buFontTx ): // CT_TextBulletTypefaceFollowText
mrBulletList.mbBulletFontFollowText <<= true;
break;
case A_TOKEN( buFont ): // CT_TextFont
mrBulletList.maBulletFont.setAttributes( rAttribs );
break;
// EG_TextBullet
case A_TOKEN( buNone ): // CT_TextNoBullet
mrBulletList.setNone();
break;
case A_TOKEN( buAutoNum ): // CT_TextAutonumberBullet
{
try {
sal_Int32 nType = rAttribs.getToken( XML_type, 0 );
sal_Int32 nStartAt = rAttribs.getInteger( XML_startAt, 1 );
if( nStartAt > 32767 )
{
nStartAt = 32767;
}
else if( nStartAt < 1 )
{
nStartAt = 1;
}
mrBulletList.setStartAt( nStartAt );
mrBulletList.setType( nType );
}
catch(SAXException& /* e */ )
{
TOOLS_WARN_EXCEPTION("oox", "OOX: SAXException in XML_buAutoNum");
}
break;
}
case A_TOKEN( buChar ): // CT_TextCharBullet
try {
mrBulletList.setBulletChar( rAttribs.getString( XML_char ).get() );
mrBulletList.setSuffixNone();
}
catch(SAXException& /* e */)
{
TOOLS_WARN_EXCEPTION("oox", "OOX: SAXException in XML_buChar");
}
break;
case A_TOKEN( buBlip ): // CT_TextBlipBullet
{
mxBlipProps = std::make_shared<BlipFillProperties>();
return new BlipFillContext( *this, rAttribs, *mxBlipProps );
}
case A_TOKEN( tabLst ): // CT_TextTabStopList
return new TextTabStopListContext( *this, maTabList );
case A_TOKEN( defRPr ): // CT_TextCharacterProperties
return new TextCharacterPropertiesContext( *this, rAttribs, mrTextParagraphProperties.getTextCharacterProperties() );
case W_TOKEN( jc ):
{
OptValue< OUString > oParaAdjust = rAttribs.getString( W_TOKEN(val) );
if( oParaAdjust.has() && !oParaAdjust.get().isEmpty() )
{
const OUString& sParaAdjust = oParaAdjust.get();
if( sParaAdjust == "left" )
mrTextParagraphProperties.setParaAdjust(ParagraphAdjust_LEFT);
else if ( sParaAdjust == "right" )
mrTextParagraphProperties.setParaAdjust(ParagraphAdjust_RIGHT);
else if ( sParaAdjust == "center" )
mrTextParagraphProperties.setParaAdjust(ParagraphAdjust_CENTER);
else if ( sParaAdjust == "both" )
mrTextParagraphProperties.setParaAdjust(ParagraphAdjust_BLOCK);
}
}
break;
case W_TOKEN( spacing ):
{
// Spacing before
if( !rAttribs.getBool(W_TOKEN(beforeAutospacing), false) )
{
OptValue<sal_Int32> oBefore = rAttribs.getInteger(W_TOKEN(before));
if (oBefore.has())
{
TextSpacing& rSpacing = mrTextParagraphProperties.getParaTopMargin();
rSpacing.nUnit = TextSpacing::Unit::Points;
rSpacing.nValue = convertTwipToMm100(oBefore.get());
rSpacing.bHasValue = true;
}
else
{
OptValue<sal_Int32> oBeforeLines = rAttribs.getInteger(W_TOKEN(beforeLines));
if (oBeforeLines.has())
{
TextSpacing& rSpacing = mrTextParagraphProperties.getParaTopMargin();
rSpacing.nUnit = TextSpacing::Unit::Percent;
rSpacing.nValue = oBeforeLines.get() * MAX_PERCENT / 100;
rSpacing.bHasValue = true;
}
}
}
// Spacing after
if( !rAttribs.getBool(W_TOKEN(afterAutospacing), false) )
{
OptValue<sal_Int32> oAfter = rAttribs.getInteger(W_TOKEN(after));
if (oAfter.has())
{
TextSpacing& rSpacing = mrTextParagraphProperties.getParaBottomMargin();
rSpacing.nUnit = TextSpacing::Unit::Points;
rSpacing.nValue = convertTwipToMm100(oAfter.get());
rSpacing.bHasValue = true;
}
else
{
OptValue<sal_Int32> oAfterLines = rAttribs.getInteger(W_TOKEN(afterLines));
if (oAfterLines.has())
{
TextSpacing& rSpacing = mrTextParagraphProperties.getParaBottomMargin();
rSpacing.nUnit = TextSpacing::Unit::Percent;
rSpacing.nValue = oAfterLines.get() * MAX_PERCENT / 100;
rSpacing.bHasValue = true;
}
}
}
// Line spacing
OptValue<OUString> oLineRule = rAttribs.getString(W_TOKEN(lineRule));
OptValue<sal_Int32> oLineSpacing = rAttribs.getInteger(W_TOKEN(line));
if (oLineSpacing.has())
{
TextSpacing& rLineSpacing = mrTextParagraphProperties.getLineSpacing();
if( !oLineRule.has() || oLineRule.get() == "auto" )
{
rLineSpacing.nUnit = TextSpacing::Unit::Percent;
rLineSpacing.nValue = oLineSpacing.get() * MAX_PERCENT / 240;
}
else
{
rLineSpacing.nUnit = TextSpacing::Unit::Points;
rLineSpacing.nValue = convertTwipToMm100(oLineSpacing.get());
}
rLineSpacing.bHasValue = true;
}
}
break;
default:
SAL_WARN("oox", "TextParagraphPropertiesContext::onCreateContext: unhandled element: " << getBaseToken(aElementToken));
}
return this;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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