/* -*- 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 #include #include #include #include #include #include namespace drawinglayer { namespace primitive2d { TextBreakupHelper::TextBreakupHelper(const TextSimplePortionPrimitive2D& rSource) : mrSource(rSource), mxResult(), maTextLayouter(), maDecTrans(), 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())) { // 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 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(), 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, 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()) { 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; } } const Primitive2DContainer& TextBreakupHelper::getResult(BreakupUnit aBreakupUnit) const { if(mxResult.empty()) { const_cast< TextBreakupHelper* >(this)->breakup(aBreakupUnit); } return mxResult; } } // end of namespace primitive2d } // end of namespace drawinglayer /* vim:set shiftwidth=4 softtabstop=4 expandtab: */