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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 <drawinglayer/primitive2d/textbreakuphelper.hxx>
+#include <drawinglayer/primitive2d/textdecoratedprimitive2d.hxx>
+#include <com/sun/star/i18n/XBreakIterator.hpp>
+#include <comphelper/processfactory.hxx>
+#include <com/sun/star/i18n/CharacterIteratorMode.hdl>
+#include <com/sun/star/i18n/WordType.hpp>
+#include <com/sun/star/i18n/CharType.hpp>
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace drawinglayer
+{
+ namespace primitive2d
+ {
+ TextBreakupHelper::TextBreakupHelper(const TextSimplePortionPrimitive2D& rSource)
+ : mrSource(rSource),
+ mxResult(),
+ maTextLayouter(),
+ maDecTrans(),
+ mbNoDXArray(false)
+ {
+ OSL_ENSURE(dynamic_cast< const TextSimplePortionPrimitive2D* >(&mrSource), "TextBreakupHelper with illegal primitive created (!)");
+ maDecTrans = mrSource.getTextTransform();
+ mbNoDXArray = mrSource.getDXArray().empty();
+
+ if(mbNoDXArray)
+ {
+ // init TextLayouter when no dxarray
+ maTextLayouter.setFontAttribute(
+ mrSource.getFontAttribute(),
+ maDecTrans.getScale().getX(),
+ maDecTrans.getScale().getY(),
+ mrSource.getLocale());
+ }
+ }
+
+ TextBreakupHelper::~TextBreakupHelper()
+ {
+ }
+
+ void TextBreakupHelper::breakupPortion(Primitive2DVector& rTempResult, sal_uInt32 nIndex, sal_uInt32 nLength, bool bWordLineMode)
+ {
+ if(nLength && !(nIndex == mrSource.getTextPosition() && nLength == mrSource.getTextLength()))
+ {
+ // prepare values for new portion
+ basegfx::B2DHomMatrix aNewTransform;
+ ::std::vector< double > aNewDXArray;
+ const bool bNewStartIsNotOldStart(nIndex > mrSource.getTextPosition());
+
+ if(!mbNoDXArray)
+ {
+ // prepare new DXArray for the single word
+ aNewDXArray = ::std::vector< double >(
+ mrSource.getDXArray().begin() + (nIndex - mrSource.getTextPosition()),
+ mrSource.getDXArray().begin() + ((nIndex + nLength) - mrSource.getTextPosition()));
+ }
+
+ if(bNewStartIsNotOldStart)
+ {
+ // needs to be moved to a new start position
+ double fOffset(0.0);
+
+ if(mbNoDXArray)
+ {
+ // evaluate using TextLayouter
+ fOffset = maTextLayouter.getTextWidth(mrSource.getText(), mrSource.getTextPosition(), nIndex);
+ }
+ else
+ {
+ // get from DXArray
+ const sal_uInt32 nIndex2(static_cast< sal_uInt32 >(nIndex - mrSource.getTextPosition()));
+ fOffset = mrSource.getDXArray()[nIndex2 - 1];
+ }
+
+ // need offset without FontScale for building the new transformation. The
+ // new transformation will be multiplied with the current text transformation
+ // so FontScale would be double
+ double fOffsetNoScale(fOffset);
+ const double fFontScaleX(maDecTrans.getScale().getX());
+
+ if(!basegfx::fTools::equal(fFontScaleX, 1.0)
+ && !basegfx::fTools::equalZero(fFontScaleX))
+ {
+ fOffsetNoScale /= fFontScaleX;
+ }
+
+ // apply needed offset to transformation
+ aNewTransform.translate(fOffsetNoScale, 0.0);
+
+ if(!mbNoDXArray)
+ {
+ // DXArray values need to be corrected with the offset, too. Here,
+ // take the scaled offset since the DXArray is scaled
+ const sal_uInt32 nArraySize(aNewDXArray.size());
+
+ for(sal_uInt32 a(0); a < nArraySize; a++)
+ {
+ aNewDXArray[a] -= fOffset;
+ }
+ }
+ }
+
+ // add text transformation to new transformation
+ aNewTransform = maDecTrans.getB2DHomMatrix() * aNewTransform;
+
+ // callback to allow evtl. changes
+ const bool bCreate(allowChange(rTempResult.size(), aNewTransform, nIndex, nLength));
+
+ if(bCreate)
+ {
+ // check if we have a decorated primitive as source
+ const TextDecoratedPortionPrimitive2D* pTextDecoratedPortionPrimitive2D =
+ dynamic_cast< const TextDecoratedPortionPrimitive2D* >(&mrSource);
+
+ if(pTextDecoratedPortionPrimitive2D)
+ {
+ // create a TextDecoratedPortionPrimitive2D
+ rTempResult.push_back(
+ new TextDecoratedPortionPrimitive2D(
+ aNewTransform,
+ mrSource.getText(),
+ nIndex,
+ nLength,
+ aNewDXArray,
+ mrSource.getFontAttribute(),
+ mrSource.getLocale(),
+ mrSource.getFontColor(),
+
+ pTextDecoratedPortionPrimitive2D->getOverlineColor(),
+ pTextDecoratedPortionPrimitive2D->getTextlineColor(),
+ pTextDecoratedPortionPrimitive2D->getFontOverline(),
+ pTextDecoratedPortionPrimitive2D->getFontUnderline(),
+ pTextDecoratedPortionPrimitive2D->getUnderlineAbove(),
+ pTextDecoratedPortionPrimitive2D->getTextStrikeout(),
+
+ // reset WordLineMode when BreakupUnit_word is executed; else copy original
+ bWordLineMode ? false : pTextDecoratedPortionPrimitive2D->getWordLineMode(),
+
+ pTextDecoratedPortionPrimitive2D->getTextEmphasisMark(),
+ pTextDecoratedPortionPrimitive2D->getEmphasisMarkAbove(),
+ pTextDecoratedPortionPrimitive2D->getEmphasisMarkBelow(),
+ pTextDecoratedPortionPrimitive2D->getTextRelief(),
+ pTextDecoratedPortionPrimitive2D->getShadow()));
+ }
+ else
+ {
+ // create a SimpleTextPrimitive
+ rTempResult.push_back(
+ new TextSimplePortionPrimitive2D(
+ aNewTransform,
+ mrSource.getText(),
+ nIndex,
+ nLength,
+ aNewDXArray,
+ mrSource.getFontAttribute(),
+ mrSource.getLocale(),
+ mrSource.getFontColor()));
+ }
+ }
+ }
+ }
+
+ bool TextBreakupHelper::allowChange(sal_uInt32 /*nCount*/, basegfx::B2DHomMatrix& /*rNewTransform*/, sal_uInt32 /*nIndex*/, sal_uInt32 /*nLength*/)
+ {
+ return true;
+ }
+
+ void TextBreakupHelper::breakup(BreakupUnit aBreakupUnit)
+ {
+ if(mrSource.getTextLength())
+ {
+ Primitive2DVector aTempResult;
+ static ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator > xBreakIterator;
+
+ if(!xBreakIterator.is())
+ {
+ ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > xMSF(::comphelper::getProcessServiceFactory());
+ xBreakIterator.set(xMSF->createInstance(rtl::OUString::createFromAscii("com.sun.star.i18n.BreakIterator")), ::com::sun::star::uno::UNO_QUERY);
+ }
+
+ if(xBreakIterator.is())
+ {
+ const rtl::OUString& rTxt = mrSource.getText();
+ const sal_Int32 nTextLength(mrSource.getTextLength());
+ const ::com::sun::star::lang::Locale& rLocale = mrSource.getLocale();
+ const sal_Int32 nTextPosition(mrSource.getTextPosition());
+ sal_Int32 nCurrent(nTextPosition);
+
+ switch(aBreakupUnit)
+ {
+ case BreakupUnit_character:
+ {
+ sal_Int32 nDone;
+ sal_Int32 nNextCellBreak(xBreakIterator->nextCharacters(rTxt, nTextPosition, rLocale, ::com::sun::star::i18n::CharacterIteratorMode::SKIPCELL, 0, nDone));
+ sal_Int32 a(nTextPosition);
+
+ for(; a < nTextPosition + nTextLength; a++)
+ {
+ if(a == nNextCellBreak)
+ {
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
+ nCurrent = a;
+ nNextCellBreak = xBreakIterator->nextCharacters(rTxt, a, rLocale, ::com::sun::star::i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+ }
+ }
+
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
+ break;
+ }
+ case BreakupUnit_word:
+ {
+ ::com::sun::star::i18n::Boundary nNextWordBoundary(xBreakIterator->getWordBoundary(rTxt, nTextPosition, rLocale, ::com::sun::star::i18n::WordType::ANY_WORD, sal_True));
+ sal_Int32 a(nTextPosition);
+
+ for(; a < nTextPosition + nTextLength; a++)
+ {
+ if(a == nNextWordBoundary.endPos)
+ {
+ if(a > nCurrent)
+ {
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, true);
+ }
+
+ nCurrent = a;
+
+ // skip spaces (maybe enhanced with a bool later if needed)
+ {
+ const sal_Int32 nEndOfSpaces(xBreakIterator->endOfCharBlock(rTxt, a, rLocale, ::com::sun::star::i18n::CharType::SPACE_SEPARATOR));
+
+ if(nEndOfSpaces > a)
+ {
+ nCurrent = nEndOfSpaces;
+ }
+ }
+
+ nNextWordBoundary = xBreakIterator->getWordBoundary(rTxt, a + 1, rLocale, ::com::sun::star::i18n::WordType::ANY_WORD, sal_True);
+ }
+ }
+
+ if(a > nCurrent)
+ {
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, true);
+ }
+ break;
+ }
+ case BreakupUnit_sentence:
+ {
+ sal_Int32 nNextSentenceBreak(xBreakIterator->endOfSentence(rTxt, nTextPosition, rLocale));
+ sal_Int32 a(nTextPosition);
+
+ for(; a < nTextPosition + nTextLength; a++)
+ {
+ if(a == nNextSentenceBreak)
+ {
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
+ nCurrent = a;
+ nNextSentenceBreak = xBreakIterator->endOfSentence(rTxt, a + 1, rLocale);
+ }
+ }
+
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
+ break;
+ }
+ }
+ }
+
+ mxResult = Primitive2DVectorToPrimitive2DSequence(aTempResult);
+ }
+ }
+
+ const Primitive2DSequence& TextBreakupHelper::getResult(BreakupUnit aBreakupUnit) const
+ {
+ if(!mxResult.hasElements())
+ {
+ const_cast< TextBreakupHelper* >(this)->breakup(aBreakupUnit);
+ }
+
+ return mxResult;
+ }
+
+ } // end of namespace primitive2d
+} // end of namespace drawinglayer
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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