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Diffstat (limited to '')
| -rw-r--r-- | svx/source/customshapes/EnhancedCustomShapeFontWork.cxx | 956 |
1 files changed, 956 insertions, 0 deletions
diff --git a/svx/source/customshapes/EnhancedCustomShapeFontWork.cxx b/svx/source/customshapes/EnhancedCustomShapeFontWork.cxx new file mode 100644 index 000000000..0043b69cd --- /dev/null +++ b/svx/source/customshapes/EnhancedCustomShapeFontWork.cxx @@ -0,0 +1,956 @@ +/* -*- 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/svddef.hxx> +#include <svx/svdopath.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 <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> + +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 nParagraphsLeft = rTextObj.GetParagraphCount(); + + rFWData.nMaxParagraphsPerTextArea = ( ( nParagraphsLeft - 1 ) / nTextAreaCount ) + 1; + sal_Int32 j = 0; + while( nParagraphsLeft && nTextAreaCount ) + { + FWTextArea aTextArea; + sal_Int32 i, nParagraphs = ( ( nParagraphsLeft - 1 ) / nTextAreaCount ) + 1; + for ( i = 0; i < nParagraphs; ++i, ++j ) + { + FWParagraphData aParagraphData; + aParagraphData.aString = rTextObj.GetText( j ); + + const SfxItemSet& rParaSet = rTextObj.GetParaAttribs( j ); // retrieving some paragraph attributes + aParagraphData.nFrameDirection = rParaSet.Get( EE_PARA_WRITINGDIR ).GetValue(); + aTextArea.vParagraphs.push_back( aParagraphData ); + } + rFWData.vTextAreas.push_back( aTextArea ); + nParagraphsLeft -= nParagraphs; + 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(); + + SAL_WARN_IF(nFontSize > SAL_MAX_INT16, "svx", "CalculateHorizontalScalingFactor suspiciously large font height: " << nFontSize); + + 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::DEFAULT); + pVirDev->SetMapMode(MapMode(MapUnit::Map100thMM)); + pVirDev->SetFont( aFont ); + + 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) + { + // if we have a very large font that will require scaling down to a very small value then + // skip directly to a small font size + if (nFontSize > 128) + { + double nEstimatedFinalFontSize = nFontSize * fScalingFactor; + double nOnePercentFontSize = nFontSize / 100.0; + if (nEstimatedFinalFontSize < nOnePercentFontSize) + { + nFontSize = std::max<int>(16, std::ceil(5 * nEstimatedFinalFontSize)); + SAL_WARN("svx", "CalculateHorizontalScalingFactor skipping direct to: " << nFontSize << " from " << rFontHeight.GetHeight()); + } + } + 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::DEFAULT); + pVirDev->SetMapMode(MapMode(MapUnit::Map100thMM)); + pVirDev->SetFont( aFont ); + 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 + { + std::vector<sal_Int32> 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 SdrObject* CreateSdrObjectFromParagraphOutlines( + const FWData& rFWData, + const SdrObjCustomShape& rSdrObjCustomShape) +{ + SdrObject* pRet = nullptr; + 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, + 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; +} + +SdrObject* EnhancedCustomShapeFontWork::CreateFontWork( + const SdrObject* pShape2d, + const SdrObjCustomShape& rSdrObjCustomShape) +{ + SdrObject* pRet = nullptr; + + 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: */ |