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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/BreakIterator.hpp>
+#include <comphelper/processfactory.hxx>
+#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
+#include <com/sun/star/i18n/WordType.hpp>
+#include <com/sun/star/i18n/CharType.hpp>
+
+
+namespace drawinglayer::primitive2d
+{
+ TextBreakupHelper::TextBreakupHelper(const TextSimplePortionPrimitive2D& rSource)
+ : mrSource(rSource),
+ mbNoDXArray(false)
+ {
+ 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(Primitive2DContainer& rTempResult, sal_Int32 nIndex, sal_Int32 nLength, bool bWordLineMode)
+ {
+ if(!(nLength && (nIndex != mrSource.getTextPosition() || nLength != mrSource.getTextLength())))
+ return;
+
+ // 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_Int32 nIndex2(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
+ // coverity[swapped_arguments : FALSE] - this is in the correct order
+ aNewTransform *= maDecTrans.getB2DHomMatrix();
+
+ // callback to allow evtl. changes
+ const bool bCreate(allowChange(rTempResult.size(), aNewTransform, nIndex, nLength));
+
+ if(!bCreate)
+ return;
+
+ // 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,
+ std::move(aNewDXArray),
+ mrSource.getFontAttribute(),
+ mrSource.getLocale(),
+ mrSource.getFontColor(),
+ mrSource.getTextFillColor(),
+
+ pTextDecoratedPortionPrimitive2D->getOverlineColor(),
+ pTextDecoratedPortionPrimitive2D->getTextlineColor(),
+ pTextDecoratedPortionPrimitive2D->getFontOverline(),
+ pTextDecoratedPortionPrimitive2D->getFontUnderline(),
+ pTextDecoratedPortionPrimitive2D->getUnderlineAbove(),
+ pTextDecoratedPortionPrimitive2D->getTextStrikeout(),
+
+ // reset WordLineMode when BreakupUnit::Word is executed; else copy original
+ !bWordLineMode && 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,
+ std::move(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())
+ return;
+
+ Primitive2DContainer aTempResult;
+ static css::uno::Reference< css::i18n::XBreakIterator > xBreakIterator;
+
+ if(!xBreakIterator.is())
+ {
+ css::uno::Reference< css::uno::XComponentContext > xContext( ::comphelper::getProcessComponentContext() );
+ xBreakIterator = css::i18n::BreakIterator::create(xContext);
+ }
+
+ const OUString& rTxt = mrSource.getText();
+ const sal_Int32 nTextLength(mrSource.getTextLength());
+ const css::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, css::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, css::i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+ }
+ }
+
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, false);
+ break;
+ }
+ case BreakupUnit::Word:
+ {
+ css::i18n::Boundary nNextWordBoundary(xBreakIterator->getWordBoundary(rTxt, nTextPosition, rLocale, css::i18n::WordType::ANY_WORD, 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, css::i18n::CharType::SPACE_SEPARATOR));
+
+ if(nEndOfSpaces > a)
+ {
+ nCurrent = nEndOfSpaces;
+ }
+ }
+
+ nNextWordBoundary = xBreakIterator->getWordBoundary(rTxt, a + 1, rLocale, css::i18n::WordType::ANY_WORD, true);
+ }
+ }
+
+ if(a > nCurrent)
+ {
+ breakupPortion(aTempResult, nCurrent, a - nCurrent, true);
+ }
+ break;
+ }
+ }
+
+ mxResult = aTempResult;
+ }
+
+ Primitive2DContainer TextBreakupHelper::extractResult(BreakupUnit aBreakupUnit)
+ {
+ if(mxResult.empty())
+ {
+ breakup(aBreakupUnit);
+ }
+
+ return std::move(mxResult);
+ }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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