/* -*- 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 "EnhancedCustomShapeFontWork.hxx"
#include <svl/itemset.hxx>
#include <svx/compatflags.hxx>
#include <svx/svddef.hxx>
#include <svx/svdopath.hxx>
#include <vcl/kernarray.hxx>
#include <vcl/metric.hxx>
#include <svx/sdasitm.hxx>
#include <svx/sdtfsitm.hxx>
#include <vcl/virdev.hxx>
#include <svx/svditer.hxx>
#include <editeng/eeitem.hxx>
#include <editeng/frmdiritem.hxx>
#include <editeng/fontitem.hxx>
#include <editeng/postitem.hxx>
#include <editeng/wghtitem.hxx>
#include <editeng/fhgtitem.hxx>
#include <editeng/charscaleitem.hxx>
#include <svx/svdoashp.hxx>
#include <svx/sdshitm.hxx>
#include <svx/svdmodel.hxx>
#include <editeng/outlobj.hxx>
#include <editeng/editobj.hxx>
#include <o3tl/numeric.hxx>
#include <vector>
#include <numeric>
#include <algorithm>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/i18n/BreakIterator.hpp>
#include <com/sun/star/i18n/ScriptType.hpp>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <sal/log.hxx>
#include <rtl/math.hxx>
#include <unotools/configmgr.hxx>
#include <comphelper/string.hxx>
using namespace com::sun::star;
using namespace com::sun::star::uno;
namespace {
struct FWCharacterData // representing a single character
{
std::vector< tools::PolyPolygon > vOutlines;
tools::Rectangle aBoundRect;
};
struct FWParagraphData // representing a single paragraph
{
OUString aString;
std::vector< FWCharacterData > vCharacters;
tools::Rectangle aBoundRect;
SvxFrameDirection nFrameDirection;
};
struct FWTextArea // representing multiple concluding paragraphs
{
std::vector< FWParagraphData > vParagraphs;
tools::Rectangle aBoundRect;
};
struct FWData // representing the whole text
{
std::vector< FWTextArea > vTextAreas;
double fHorizontalTextScaling;
double fVerticalTextScaling;
sal_uInt32 nMaxParagraphsPerTextArea;
sal_Int32 nSingleLineHeight;
bool bSingleLineMode;
bool bScaleX;
};
}
static bool InitializeFontWorkData(
const SdrObjCustomShape& rSdrObjCustomShape,
const sal_uInt16 nOutlinesCount2d,
FWData& rFWData)
{
bool bNoErr = false;
bool bSingleLineMode = false;
sal_uInt16 nTextAreaCount = nOutlinesCount2d;
if ( nOutlinesCount2d & 1 )
bSingleLineMode = true;
else
nTextAreaCount >>= 1;
const SdrCustomShapeGeometryItem& rGeometryItem( rSdrObjCustomShape.GetMergedItem( SDRATTR_CUSTOMSHAPE_GEOMETRY ) );
const css::uno::Any* pAny = rGeometryItem.GetPropertyValueByName( "TextPath", "ScaleX" );
if (pAny)
*pAny >>= rFWData.bScaleX;
else
rFWData.bScaleX = false;
if ( nTextAreaCount )
{
rFWData.bSingleLineMode = bSingleLineMode;
// setting the strings
OutlinerParaObject* pParaObj(rSdrObjCustomShape.GetOutlinerParaObject());
if ( pParaObj )
{
const EditTextObject& rTextObj = pParaObj->GetTextObject();
sal_Int32 nParagraphsCount = rTextObj.GetParagraphCount();
// Collect all the lines from all paragraphs
std::vector<int> aLineParaID; // which para this line is in
std::vector<int> aLineStart; // where this line start in that para
std::vector<int> aLineLength;
std::vector<OUString> aParaText;
for (sal_Int32 nPara = 0; nPara < nParagraphsCount; ++nPara)
{
aParaText.push_back(rTextObj.GetText(nPara));
sal_Int32 nPos = 0;
sal_Int32 nPrevPos = 0;
do
{
// search line break.
if (!rSdrObjCustomShape.getSdrModelFromSdrObject().GetCompatibilityFlag(
SdrCompatibilityFlag::LegacySingleLineFontwork))
nPos = aParaText[nPara].indexOf(sal_Unicode(u'\1'), nPrevPos);
else
nPos = -1; // tdf#148000: ignore line breaks in legacy fontworks
aLineParaID.push_back(nPara);
aLineStart.push_back(nPrevPos);
aLineLength.push_back((nPos >= 0 ? nPos : aParaText[nPara].getLength())
- nPrevPos);
nPrevPos = nPos + 1;
} while (nPos >= 0);
}
sal_Int32 nLinesLeft = aLineParaID.size();
rFWData.nMaxParagraphsPerTextArea = ((nLinesLeft - 1) / nTextAreaCount) + 1;
sal_Int32 nLine = 0;
while (nLinesLeft && nTextAreaCount)
{
FWTextArea aTextArea;
sal_Int32 nLinesInPara = ((nLinesLeft - 1) / nTextAreaCount) + 1;
for (sal_Int32 i = 0; i < nLinesInPara; ++i, ++nLine)
{
FWParagraphData aParagraphData;
aParagraphData.aString = aParaText[aLineParaID[nLine]].subView(
aLineStart[nLine], aLineLength[nLine]);
// retrieving some paragraph attributes
const SfxItemSet& rParaSet = rTextObj.GetParaAttribs(aLineParaID[nLine]);
aParagraphData.nFrameDirection = rParaSet.Get(EE_PARA_WRITINGDIR).GetValue();
aTextArea.vParagraphs.push_back(aParagraphData);
}
rFWData.vTextAreas.push_back(aTextArea);
nLinesLeft -= nLinesInPara;
nTextAreaCount--;
}
bNoErr = true;
}
}
return bNoErr;
}
static double GetLength( const tools::Polygon& rPolygon )
{
double fLength = 0;
if ( rPolygon.GetSize() > 1 )
{
sal_uInt16 nCount = rPolygon.GetSize();
while( --nCount )
fLength += rPolygon.CalcDistance( nCount, nCount - 1 );
}
return fLength;
}
/* CalculateHorizontalScalingFactor returns the horizontal scaling factor for
the whole text object, so that each text will match its corresponding 2d Outline */
static void CalculateHorizontalScalingFactor(
const SdrObjCustomShape& rSdrObjCustomShape,
FWData& rFWData,
const tools::PolyPolygon& rOutline2d)
{
double fScalingFactor = 1.0;
rFWData.fVerticalTextScaling = 1.0;
sal_uInt16 i = 0;
bool bSingleLineMode = false;
sal_uInt16 nOutlinesCount2d = rOutline2d.Count();
vcl::Font aFont;
const SvxFontItem& rFontItem( rSdrObjCustomShape.GetMergedItem( EE_CHAR_FONTINFO ) );
const SvxFontHeightItem& rFontHeight( rSdrObjCustomShape.GetMergedItem( EE_CHAR_FONTHEIGHT ) );
sal_Int32 nFontSize = rFontHeight.GetHeight();
if (rFWData.bScaleX)
aFont.SetFontHeight( nFontSize );
else
aFont.SetFontHeight( rSdrObjCustomShape.GetLogicRect().GetHeight() / rFWData.nMaxParagraphsPerTextArea );
aFont.SetAlignment( ALIGN_TOP );
aFont.SetFamilyName( rFontItem.GetFamilyName() );
aFont.SetFamily( rFontItem.GetFamily() );
aFont.SetStyleName( rFontItem.GetStyleName() );
const SvxPostureItem& rPostureItem = rSdrObjCustomShape.GetMergedItem( EE_CHAR_ITALIC );
aFont.SetItalic( rPostureItem.GetPosture() );
const SvxWeightItem& rWeightItem = rSdrObjCustomShape.GetMergedItem( EE_CHAR_WEIGHT );
aFont.SetWeight( rWeightItem.GetWeight() );
aFont.SetOrientation( 0_deg10 );
// initializing virtual device
ScopedVclPtrInstance< VirtualDevice > pVirDev(DeviceFormat::WITHOUT_ALPHA);
pVirDev->SetMapMode(MapMode(MapUnit::Map100thMM));
pVirDev->SetFont( aFont );
pVirDev->SetAntialiasing( AntialiasingFlags::DisableText );
if ( nOutlinesCount2d & 1 )
bSingleLineMode = true;
// In case of rFWData.bScaleX == true it loops with reduced font size until the current run
// results in a fScalingFactor >=1.0. The fact, that case rFWData.bScaleX == true keeps font
// size if possible, is not done here with scaling factor 1 but is done in method
// FitTextOutlinesToShapeOutlines()
do
{
i = 0;
bool bScalingFactorDefined = false; // New calculation for each font size
for( const auto& rTextArea : rFWData.vTextAreas )
{
// calculating the width of the corresponding 2d text area
double fWidth = GetLength( rOutline2d.GetObject( i++ ) );
if ( !bSingleLineMode )
{
fWidth += GetLength( rOutline2d.GetObject( i++ ) );
fWidth /= 2.0;
}
for( const auto& rParagraph : rTextArea.vParagraphs )
{
double fTextWidth = pVirDev->GetTextWidth( rParagraph.aString );
if ( fTextWidth > 0.0 )
{
double fScale = fWidth / fTextWidth;
if ( !bScalingFactorDefined )
{
fScalingFactor = fScale;
bScalingFactorDefined = true;
}
else if (fScale < fScalingFactor)
{
fScalingFactor = fScale;
}
}
}
}
if (fScalingFactor < 1.0)
{
nFontSize--;
aFont.SetFontHeight( nFontSize );
pVirDev->SetFont( aFont );
}
}
while (rFWData.bScaleX && fScalingFactor < 1.0 && nFontSize > 1 );
if (nFontSize > 1)
rFWData.fVerticalTextScaling = static_cast<double>(nFontSize) / rFontHeight.GetHeight();
rFWData.fHorizontalTextScaling = fScalingFactor;
}
static void GetTextAreaOutline(
const FWData& rFWData,
const SdrObjCustomShape& rSdrObjCustomShape,
FWTextArea& rTextArea,
bool bSameLetterHeights)
{
bool bIsVertical(rSdrObjCustomShape.IsVerticalWriting());
sal_Int32 nVerticalOffset = rFWData.nMaxParagraphsPerTextArea > rTextArea.vParagraphs.size()
? rFWData.nSingleLineHeight / 2 : 0;
for( auto& rParagraph : rTextArea.vParagraphs )
{
const OUString& rText = rParagraph.aString;
if ( !rText.isEmpty() )
{
// generating vcl/font
sal_uInt16 nScriptType = i18n::ScriptType::LATIN;
Reference< i18n::XBreakIterator > xBI( EnhancedCustomShapeFontWork::GetBreakIterator() );
if ( xBI.is() )
{
nScriptType = xBI->getScriptType( rText, 0 );
if( i18n::ScriptType::WEAK == nScriptType )
{
sal_Int32 nChg = xBI->endOfScript( rText, 0, nScriptType );
if (nChg < rText.getLength() && nChg >= 0)
nScriptType = xBI->getScriptType( rText, nChg );
else
nScriptType = i18n::ScriptType::LATIN;
}
}
sal_uInt16 nFntItm = EE_CHAR_FONTINFO;
if ( nScriptType == i18n::ScriptType::COMPLEX )
nFntItm = EE_CHAR_FONTINFO_CTL;
else if ( nScriptType == i18n::ScriptType::ASIAN )
nFntItm = EE_CHAR_FONTINFO_CJK;
const SvxFontItem& rFontItem = static_cast<const SvxFontItem&>(rSdrObjCustomShape.GetMergedItem( nFntItm ));
vcl::Font aFont;
aFont.SetFontHeight( rFWData.nSingleLineHeight );
aFont.SetAlignment( ALIGN_TOP );
aFont.SetFamilyName( rFontItem.GetFamilyName() );
aFont.SetFamily( rFontItem.GetFamily() );
aFont.SetStyleName( rFontItem.GetStyleName() );
aFont.SetOrientation( 0_deg10 );
const SvxPostureItem& rPostureItem = rSdrObjCustomShape.GetMergedItem( EE_CHAR_ITALIC );
aFont.SetItalic( rPostureItem.GetPosture() );
const SvxWeightItem& rWeightItem = rSdrObjCustomShape.GetMergedItem( EE_CHAR_WEIGHT );
aFont.SetWeight( rWeightItem.GetWeight() );
// initializing virtual device
ScopedVclPtrInstance< VirtualDevice > pVirDev(DeviceFormat::WITHOUT_ALPHA);
pVirDev->SetMapMode(MapMode(MapUnit::Map100thMM));
pVirDev->SetFont( aFont );
pVirDev->SetAntialiasing( AntialiasingFlags::DisableText );
pVirDev->EnableRTL();
if ( rParagraph.nFrameDirection == SvxFrameDirection::Horizontal_RL_TB )
pVirDev->SetLayoutMode( vcl::text::ComplexTextLayoutFlags::BiDiRtl );
const SvxCharScaleWidthItem& rCharScaleWidthItem = rSdrObjCustomShape.GetMergedItem( EE_CHAR_FONTWIDTH );
sal_uInt16 nCharScaleWidth = rCharScaleWidthItem.GetValue();
sal_Int32 nWidth = 0;
// VERTICAL
if ( bIsVertical )
{
// vertical _> each single character needs to be rotated by 90
sal_Int32 i;
sal_Int32 nHeight = 0;
tools::Rectangle aSingleCharacterUnion;
for ( i = 0; i < rText.getLength(); i++ )
{
FWCharacterData aCharacterData;
OUString aCharText( rText[ i ] );
if ( pVirDev->GetTextOutlines( aCharacterData.vOutlines, aCharText, 0, 0, -1, nWidth, {} ) )
{
sal_Int32 nTextWidth = pVirDev->GetTextWidth( aCharText);
if ( aCharacterData.vOutlines.empty() )
{
nHeight += rFWData.nSingleLineHeight;
}
else
{
for ( auto& rOutline : aCharacterData.vOutlines )
{
// rotating
rOutline.Rotate( Point( nTextWidth / 2, rFWData.nSingleLineHeight / 2 ), 900_deg10 );
aCharacterData.aBoundRect.Union( rOutline.GetBoundRect() );
}
for ( auto& rOutline : aCharacterData.vOutlines )
{
sal_Int32 nM = - aCharacterData.aBoundRect.Left() + nHeight;
rOutline.Move( nM, 0 );
aCharacterData.aBoundRect.Move( nM, 0 );
}
nHeight += aCharacterData.aBoundRect.GetWidth() + ( rFWData.nSingleLineHeight / 5 );
aSingleCharacterUnion.Union( aCharacterData.aBoundRect );
}
}
rParagraph.vCharacters.push_back( aCharacterData );
}
for ( auto& rCharacter : rParagraph.vCharacters )
{
for ( auto& rOutline : rCharacter.vOutlines )
{
rOutline.Move( ( aSingleCharacterUnion.GetWidth() - rCharacter.aBoundRect.GetWidth() ) / 2, 0 );
}
}
}
else
{
KernArray aDXArry;
if ( ( nCharScaleWidth != 100 ) && nCharScaleWidth )
{ // applying character spacing
pVirDev->GetTextArray( rText, &aDXArry);
FontMetric aFontMetric( pVirDev->GetFontMetric() );
aFont.SetAverageFontWidth( static_cast<sal_Int32>( static_cast<double>(aFontMetric.GetAverageFontWidth()) * ( double(100) / static_cast<double>(nCharScaleWidth) ) ) );
pVirDev->SetFont( aFont );
}
FWCharacterData aCharacterData;
if ( pVirDev->GetTextOutlines( aCharacterData.vOutlines, rText, 0, 0, -1, nWidth, aDXArry ) )
{
rParagraph.vCharacters.push_back( aCharacterData );
}
else
{
// GetTextOutlines failed what usually means that it is
// not implemented. To make FontWork not fail (it is
// dependent of graphic content to get a Range) create
// a rectangle substitution for now
pVirDev->GetTextArray( rText, &aDXArry);
aCharacterData.vOutlines.clear();
if(aDXArry.size())
{
for(size_t a(0); a < aDXArry.size(); a++)
{
const basegfx::B2DPolygon aPolygon(
basegfx::utils::createPolygonFromRect(
basegfx::B2DRange(
0 == a ? 0 : aDXArry[a - 1],
0,
aDXArry[a],
aFont.GetFontHeight()
)));
aCharacterData.vOutlines.push_back(tools::PolyPolygon(tools::Polygon(aPolygon)));
}
}
else
{
const basegfx::B2DPolygon aPolygon(
basegfx::utils::createPolygonFromRect(
basegfx::B2DRange(
0,
0,
aDXArry.empty() ? 10 : aDXArry.back(),
aFont.GetFontHeight()
)));
aCharacterData.vOutlines.push_back(tools::PolyPolygon(tools::Polygon(aPolygon)));
}
rParagraph.vCharacters.push_back( aCharacterData );
}
}
// vertical alignment
for ( auto& rCharacter : rParagraph.vCharacters )
{
for( tools::PolyPolygon& rPolyPoly : rCharacter.vOutlines )
{
if ( nVerticalOffset )
rPolyPoly.Move( 0, nVerticalOffset );
// retrieving the boundrect for the paragraph
tools::Rectangle aBoundRect( rPolyPoly.GetBoundRect() );
rParagraph.aBoundRect.Union( aBoundRect );
}
}
}
// updating the boundrect for the text area by merging the current paragraph boundrect
if ( rParagraph.aBoundRect.IsEmpty() )
{
if ( rTextArea.aBoundRect.IsEmpty() )
rTextArea.aBoundRect = tools::Rectangle( Point( 0, 0 ), Size( 1, rFWData.nSingleLineHeight ) );
else
rTextArea.aBoundRect.AdjustBottom(rFWData.nSingleLineHeight );
}
else
{
tools::Rectangle& rParagraphBoundRect = rParagraph.aBoundRect;
rTextArea.aBoundRect.Union( rParagraphBoundRect );
if ( bSameLetterHeights )
{
for ( auto& rCharacter : rParagraph.vCharacters )
{
for( auto& rOutline : rCharacter.vOutlines )
{
tools::Rectangle aPolyPolyBoundRect( rOutline.GetBoundRect() );
if (aPolyPolyBoundRect.GetHeight() != rParagraphBoundRect.GetHeight() && aPolyPolyBoundRect.GetHeight())
rOutline.Scale( 1.0, static_cast<double>(rParagraphBoundRect.GetHeight()) / aPolyPolyBoundRect.GetHeight() );
aPolyPolyBoundRect = rOutline.GetBoundRect();
sal_Int32 nMove = aPolyPolyBoundRect.Top() - rParagraphBoundRect.Top();
if ( nMove )
rOutline.Move( 0, -nMove );
}
}
}
}
if ( bIsVertical )
nVerticalOffset -= rFWData.nSingleLineHeight;
else
nVerticalOffset += rFWData.nSingleLineHeight;
}
}
static bool GetFontWorkOutline(
FWData& rFWData,
const SdrObjCustomShape& rSdrObjCustomShape)
{
SdrTextHorzAdjust eHorzAdjust(rSdrObjCustomShape.GetMergedItem( SDRATTR_TEXT_HORZADJUST ).GetValue());
drawing::TextFitToSizeType const eFTS(rSdrObjCustomShape.GetMergedItem( SDRATTR_TEXT_FITTOSIZE ).GetValue());
bool bSameLetterHeights = false;
const SdrCustomShapeGeometryItem& rGeometryItem(rSdrObjCustomShape.GetMergedItem( SDRATTR_CUSTOMSHAPE_GEOMETRY ));
const css::uno::Any* pAny = rGeometryItem.GetPropertyValueByName( "TextPath", "SameLetterHeights" );
if ( pAny )
*pAny >>= bSameLetterHeights;
const SvxFontHeightItem& rFontHeight( rSdrObjCustomShape.GetMergedItem( EE_CHAR_FONTHEIGHT ) );
if (rFWData.bScaleX)
rFWData.nSingleLineHeight = rFWData.fVerticalTextScaling * rFontHeight.GetHeight();
else
rFWData.nSingleLineHeight = static_cast<sal_Int32>( ( static_cast<double>( rSdrObjCustomShape.GetLogicRect().GetHeight() )
/ rFWData.nMaxParagraphsPerTextArea ) * rFWData.fHorizontalTextScaling );
if (rFWData.nSingleLineHeight == SAL_MIN_INT32)
return false;
for ( auto& rTextArea : rFWData.vTextAreas )
{
GetTextAreaOutline(
rFWData,
rSdrObjCustomShape,
rTextArea,
bSameLetterHeights);
if (eFTS == drawing::TextFitToSizeType_ALLLINES ||
// tdf#97630 interpret PROPORTIONAL same as ALLLINES so we don't
// need another ODF attribute!
eFTS == drawing::TextFitToSizeType_PROPORTIONAL)
{
for ( auto& rParagraph : rTextArea.vParagraphs )
{
sal_Int32 nParaWidth = rParagraph.aBoundRect.GetWidth();
if ( nParaWidth )
{
double fScale = static_cast<double>(rTextArea.aBoundRect.GetWidth()) / nParaWidth;
for ( auto& rCharacter : rParagraph.vCharacters )
{
for( auto& rOutline : rCharacter.vOutlines )
{
rOutline.Scale( fScale, 1.0 );
}
}
}
}
}
else if (rFWData.bScaleX)
{
const SdrTextVertAdjust nVertJustify = rSdrObjCustomShape.GetMergedItem( SDRATTR_TEXT_VERTADJUST ).GetValue();
double fFactor = nVertJustify == SdrTextVertAdjust::SDRTEXTVERTADJUST_BOTTOM ? -0.5 : ( nVertJustify == SdrTextVertAdjust::SDRTEXTVERTADJUST_TOP ? 0.5 : 0 );
for ( auto& rParagraph : rTextArea.vParagraphs )
{
sal_Int32 nHorzDiff = 0;
sal_Int32 nVertDiff = static_cast<double>( rFWData.nSingleLineHeight ) * fFactor * ( rTextArea.vParagraphs.size() - 1 );
if ( eHorzAdjust == SDRTEXTHORZADJUST_CENTER )
nHorzDiff = ( rFWData.fHorizontalTextScaling * rTextArea.aBoundRect.GetWidth() - rParagraph.aBoundRect.GetWidth() ) / 2;
else if ( eHorzAdjust == SDRTEXTHORZADJUST_RIGHT )
nHorzDiff = ( rFWData.fHorizontalTextScaling * rTextArea.aBoundRect.GetWidth() - rParagraph.aBoundRect.GetWidth() );
if (nHorzDiff || nVertDiff)
{
for ( auto& rCharacter : rParagraph.vCharacters )
{
for( auto& rOutline : rCharacter.vOutlines )
{
rOutline.Move( nHorzDiff, nVertDiff );
}
}
}
}
}
else
{
switch( eHorzAdjust )
{
case SDRTEXTHORZADJUST_RIGHT :
case SDRTEXTHORZADJUST_CENTER:
{
for ( auto& rParagraph : rTextArea.vParagraphs )
{
sal_Int32 nHorzDiff = 0;
if ( eHorzAdjust == SDRTEXTHORZADJUST_CENTER )
nHorzDiff = ( rTextArea.aBoundRect.GetWidth() - rParagraph.aBoundRect.GetWidth() ) / 2;
else if ( eHorzAdjust == SDRTEXTHORZADJUST_RIGHT )
nHorzDiff = ( rTextArea.aBoundRect.GetWidth() - rParagraph.aBoundRect.GetWidth() );
if ( nHorzDiff )
{
for ( auto& rCharacter : rParagraph.vCharacters )
{
for( auto& rOutline : rCharacter.vOutlines )
{
rOutline.Move( nHorzDiff, 0 );
}
}
}
}
}
break;
default:
case SDRTEXTHORZADJUST_BLOCK : break; // don't know
case SDRTEXTHORZADJUST_LEFT : break; // already left aligned -> nothing to do
}
}
}
return true;
}
static basegfx::B2DPolyPolygon GetOutlinesFromShape2d( const SdrObject* pShape2d )
{
basegfx::B2DPolyPolygon aOutlines2d;
SdrObjListIter aObjListIter( *pShape2d, SdrIterMode::DeepWithGroups );
while( aObjListIter.IsMore() )
{
SdrObject* pPartObj = aObjListIter.Next();
if ( auto pPathObj = dynamic_cast<const SdrPathObj*>( pPartObj))
{
basegfx::B2DPolyPolygon aCandidate(pPathObj->GetPathPoly());
if(aCandidate.areControlPointsUsed())
{
aCandidate = basegfx::utils::adaptiveSubdivideByAngle(aCandidate);
}
aOutlines2d.append(aCandidate);
}
}
return aOutlines2d;
}
static void CalcDistances( const tools::Polygon& rPoly, std::vector< double >& rDistances )
{
sal_uInt16 i, nCount = rPoly.GetSize();
if ( nCount <= 1 )
return;
for ( i = 0; i < nCount; i++ )
{
double fDistance = i ? rPoly.CalcDistance( i, i - 1 ) : 0.0;
rDistances.push_back( fDistance );
}
std::partial_sum( rDistances.begin(), rDistances.end(), rDistances.begin() );
double fLength = rDistances[ rDistances.size() - 1 ];
if ( fLength > 0.0 )
{
for ( auto& rDistance : rDistances )
rDistance /= fLength;
}
}
static void InsertMissingOutlinePoints( const std::vector< double >& rDistances,
const tools::Rectangle& rTextAreaBoundRect, tools::Polygon& rPoly )
{
sal_uInt16 nSize = rPoly.GetSize();
if (nSize == 0)
return;
tools::Long nTextWidth = rTextAreaBoundRect.GetWidth();
if (nTextWidth == 0)
throw o3tl::divide_by_zero();
double fLastDistance = 0.0;
for (sal_uInt16 i = 0; i < nSize; ++i)
{
Point& rPoint = rPoly[ i ];
double fDistance = static_cast<double>( rPoint.X() - rTextAreaBoundRect.Left() ) / static_cast<double>(nTextWidth);
if ( i )
{
if ( fDistance > fLastDistance )
{
std::vector< double >::const_iterator aIter = std::upper_bound( rDistances.begin(), rDistances.end(), fLastDistance );
if ( aIter != rDistances.end() && ( *aIter > fLastDistance ) && ( *aIter < fDistance ) )
{
Point& rPt0 = rPoly[ i - 1 ];
sal_Int32 fX = rPoint.X() - rPt0.X();
sal_Int32 fY = rPoint.Y() - rPt0.Y();
double fd = ( 1.0 / ( fDistance - fLastDistance ) ) * ( *aIter - fLastDistance );
rPoly.Insert( i, Point( static_cast<sal_Int32>( rPt0.X() + fX * fd ), static_cast<sal_Int32>( rPt0.Y() + fY * fd ) ) );
fDistance = *aIter;
}
}
else if ( fDistance < fLastDistance )
{
std::vector< double >::const_iterator aIter = std::lower_bound( rDistances.begin(), rDistances.end(), fLastDistance );
if ( aIter != rDistances.begin() )
{
--aIter;
if ( ( *aIter > fDistance ) && ( *aIter < fLastDistance ) )
{
Point& rPt0 = rPoly[ i - 1 ];
sal_Int32 fX = rPoint.X() - rPt0.X();
sal_Int32 fY = rPoint.Y() - rPt0.Y();
double fd = ( 1.0 / ( fDistance - fLastDistance ) ) * ( *aIter - fLastDistance );
rPoly.Insert( i, Point( static_cast<sal_Int32>( rPt0.X() + fX * fd ), static_cast<sal_Int32>( rPt0.Y() + fY * fd ) ) );
fDistance = *aIter;
}
}
}
}
fLastDistance = fDistance;
}
}
static void GetPoint( const tools::Polygon& rPoly, const std::vector< double >& rDistances, const double& fX, double& fx1, double& fy1 )
{
fy1 = fx1 = 0.0;
if ( rPoly.GetSize() <= 1 )
return;
std::vector< double >::const_iterator aIter = std::lower_bound( rDistances.begin(), rDistances.end(), fX );
sal_uInt16 nIdx = sal::static_int_cast<sal_uInt16>( std::distance( rDistances.begin(), aIter ) );
if ( aIter == rDistances.end() )
nIdx--;
const Point& rPt = rPoly[ nIdx ];
fx1 = rPt.X();
fy1 = rPt.Y();
if ( !nIdx || ( aIter == rDistances.end() ) || rtl::math::approxEqual( *aIter, fX ) )
return;
nIdx = sal::static_int_cast<sal_uInt16>( std::distance( rDistances.begin(), aIter ) );
double fDist0 = *( aIter - 1 );
double fd = ( 1.0 / ( *aIter - fDist0 ) ) * ( fX - fDist0 );
const Point& rPt2 = rPoly[ nIdx - 1 ];
double fWidth = rPt.X() - rPt2.X();
double fHeight= rPt.Y() - rPt2.Y();
fWidth *= fd;
fHeight*= fd;
fx1 = rPt2.X() + fWidth;
fy1 = rPt2.Y() + fHeight;
}
static void FitTextOutlinesToShapeOutlines( const tools::PolyPolygon& aOutlines2d, FWData& rFWData )
{
sal_uInt16 nOutline2dIdx = 0;
for( auto& rTextArea : rFWData.vTextAreas )
{
tools::Rectangle rTextAreaBoundRect = rTextArea.aBoundRect;
sal_Int32 nLeft = rTextAreaBoundRect.Left();
sal_Int32 nTop = rTextAreaBoundRect.Top();
sal_Int32 nWidth = rTextAreaBoundRect.GetWidth();
sal_Int32 nHeight= rTextAreaBoundRect.GetHeight();
if (rFWData.bScaleX)
{
nWidth *= rFWData.fHorizontalTextScaling;
}
if ( rFWData.bSingleLineMode && nHeight && nWidth )
{
if ( nOutline2dIdx >= aOutlines2d.Count() )
break;
const tools::Polygon& rOutlinePoly( aOutlines2d[ nOutline2dIdx++ ] );
const sal_uInt16 nPointCount = rOutlinePoly.GetSize();
if ( nPointCount > 1 )
{
std::vector< double > vDistances;
vDistances.reserve( nPointCount );
CalcDistances( rOutlinePoly, vDistances );
if ( !vDistances.empty() )
{
for( auto& rParagraph : rTextArea.vParagraphs )
{
for ( auto& rCharacter : rParagraph.vCharacters )
{
for( tools::PolyPolygon& rPolyPoly : rCharacter.vOutlines )
{
tools::Rectangle aBoundRect( rPolyPoly.GetBoundRect() );
double fx1 = aBoundRect.Left() - nLeft;
double fx2 = aBoundRect.Right() - nLeft;
double fy1, fy2;
double fM1 = fx1 / static_cast<double>(nWidth);
double fM2 = fx2 / static_cast<double>(nWidth);
GetPoint( rOutlinePoly, vDistances, fM1, fx1, fy1 );
GetPoint( rOutlinePoly, vDistances, fM2, fx2, fy2 );
double fvx = fy2 - fy1;
double fvy = - ( fx2 - fx1 );
fx1 = fx1 + ( ( fx2 - fx1 ) * 0.5 );
fy1 = fy1 + ( ( fy2 - fy1 ) * 0.5 );
double fAngle = atan2( -fvx, -fvy );
double fL = hypot( fvx, fvy );
if (fL == 0.0)
{
SAL_WARN("svx", "FitTextOutlinesToShapeOutlines div-by-zero, abandon fit");
break;
}
fvx = fvx / fL;
fvy = fvy / fL;
fL = rTextArea.aBoundRect.GetHeight() / 2.0 + rTextArea.aBoundRect.Top() - rParagraph.aBoundRect.Center().Y();
fvx *= fL;
fvy *= fL;
rPolyPoly.Rotate( Point( aBoundRect.Center().X(), rParagraph.aBoundRect.Center().Y() ), sin( fAngle ), cos( fAngle ) );
rPolyPoly.Move( static_cast<sal_Int32>( ( fx1 + fvx )- aBoundRect.Center().X() ), static_cast<sal_Int32>( ( fy1 + fvy ) - rParagraph.aBoundRect.Center().Y() ) );
}
}
}
}
}
}
else
{
if ( ( nOutline2dIdx + 1 ) >= aOutlines2d.Count() )
break;
const tools::Polygon& rOutlinePoly( aOutlines2d[ nOutline2dIdx++ ] );
const tools::Polygon& rOutlinePoly2( aOutlines2d[ nOutline2dIdx++ ] );
const sal_uInt16 nPointCount = rOutlinePoly.GetSize();
const sal_uInt16 nPointCount2 = rOutlinePoly2.GetSize();
if ( ( nPointCount > 1 ) && ( nPointCount2 > 1 ) )
{
std::vector< double > vDistances;
vDistances.reserve( nPointCount );
std::vector< double > vDistances2;
vDistances2.reserve( nPointCount2 );
CalcDistances( rOutlinePoly, vDistances );
CalcDistances( rOutlinePoly2, vDistances2 );
for( auto& rParagraph : rTextArea.vParagraphs )
{
for ( auto& rCharacter : rParagraph.vCharacters )
{
for( tools::PolyPolygon& rPolyPoly : rCharacter.vOutlines )
{
sal_uInt16 i, nPolyCount = rPolyPoly.Count();
for ( i = 0; i < nPolyCount; i++ )
{
// #i35928#
basegfx::B2DPolygon aCandidate(rPolyPoly[ i ].getB2DPolygon());
if(aCandidate.areControlPointsUsed())
{
aCandidate = basegfx::utils::adaptiveSubdivideByAngle(aCandidate);
}
// create local polygon copy to work on
tools::Polygon aLocalPoly(aCandidate);
InsertMissingOutlinePoints( vDistances, rTextAreaBoundRect, aLocalPoly );
InsertMissingOutlinePoints( vDistances2, rTextAreaBoundRect, aLocalPoly );
sal_uInt16 _nPointCount = aLocalPoly.GetSize();
if (_nPointCount)
{
if (!nWidth || !nHeight)
throw o3tl::divide_by_zero();
for (sal_uInt16 j = 0; j < _nPointCount; ++j)
{
Point& rPoint = aLocalPoly[ j ];
rPoint.AdjustX( -nLeft );
rPoint.AdjustY( -nTop );
double fX = static_cast<double>(rPoint.X()) / static_cast<double>(nWidth);
double fY = static_cast<double>(rPoint.Y()) / static_cast<double>(nHeight);
double fx1, fy1, fx2, fy2;
GetPoint( rOutlinePoly, vDistances, fX, fx1, fy1 );
GetPoint( rOutlinePoly2, vDistances2, fX, fx2, fy2 );
double fWidth = fx2 - fx1;
double fHeight= fy2 - fy1;
rPoint.setX( static_cast<sal_Int32>( fx1 + fWidth * fY ) );
rPoint.setY( static_cast<sal_Int32>( fy1 + fHeight* fY ) );
}
}
// write back polygon
rPolyPoly[ i ] = aLocalPoly;
}
}
}
}
}
}
}
}
static rtl::Reference<SdrObject> CreateSdrObjectFromParagraphOutlines(
const FWData& rFWData,
const SdrObjCustomShape& rSdrObjCustomShape)
{
rtl::Reference<SdrObject> pRet;
basegfx::B2DPolyPolygon aPolyPoly;
if ( !rFWData.vTextAreas.empty() )
{
for ( const auto& rTextArea : rFWData.vTextAreas )
{
for ( const auto& rParagraph : rTextArea.vParagraphs )
{
for ( const auto& rCharacter : rParagraph.vCharacters )
{
for( const auto& rOutline : rCharacter.vOutlines )
{
aPolyPoly.append( rOutline.getB2DPolyPolygon() );
}
}
}
}
pRet = new SdrPathObj(
rSdrObjCustomShape.getSdrModelFromSdrObject(),
SdrObjKind::Polygon,
std::move(aPolyPoly));
SfxItemSet aSet(rSdrObjCustomShape.GetMergedItemSet());
aSet.ClearItem( SDRATTR_TEXTDIRECTION ); //SJ: vertical writing is not required, by removing this item no outliner is created
aSet.Put(makeSdrShadowItem(false)); // #i37011# NO shadow for FontWork geometry
pRet->SetMergedItemSet( aSet ); // * otherwise we would crash, because the outliner tries to create a Paraobject, but there is no model
}
return pRet;
}
Reference < i18n::XBreakIterator > EnhancedCustomShapeFontWork::mxBreakIterator;
Reference < i18n::XBreakIterator > const & EnhancedCustomShapeFontWork::GetBreakIterator()
{
if ( !mxBreakIterator.is() )
{
Reference< uno::XComponentContext > xContext = ::comphelper::getProcessComponentContext();
mxBreakIterator = i18n::BreakIterator::create(xContext);
}
return mxBreakIterator;
}
rtl::Reference<SdrObject> EnhancedCustomShapeFontWork::CreateFontWork(
const SdrObject* pShape2d,
const SdrObjCustomShape& rSdrObjCustomShape)
{
rtl::Reference<SdrObject> pRet;
// calculating scaling factor is too slow
if (utl::ConfigManager::IsFuzzing())
return pRet;
tools::PolyPolygon aOutlines2d( GetOutlinesFromShape2d( pShape2d ) );
sal_uInt16 nOutlinesCount2d = aOutlines2d.Count();
if ( nOutlinesCount2d )
{
FWData aFWData;
if(InitializeFontWorkData(rSdrObjCustomShape, nOutlinesCount2d, aFWData))
{
/* retrieves the horizontal scaling factor that has to be used
to fit each paragraph text into its corresponding 2d outline */
CalculateHorizontalScalingFactor(
rSdrObjCustomShape,
aFWData,
aOutlines2d);
/* retrieving the Outlines for the each Paragraph. */
if(!GetFontWorkOutline(
aFWData,
rSdrObjCustomShape))
{
return nullptr;
}
FitTextOutlinesToShapeOutlines( aOutlines2d, aFWData );
pRet = CreateSdrObjectFromParagraphOutlines(
aFWData,
rSdrObjCustomShape);
}
}
return pRet;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */