Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 279 insertions, 0 deletions

diff --git a/drawinglayer/source/primitive2d/textbreakuphelper.cxx b/drawinglayer/source/primitive2d/textbreakuphelper.cxx
new file mode 100644
index 000000000..1139f19e8
--- /dev/null
+++ b/drawinglayer/source/primitive2d/textbreakuphelper.cxx
@@ -0,0 +1,279 @@
+/* -*- 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),
+            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())))
+                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,
+                        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())
+                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;
+        }
+
+        const Primitive2DContainer& TextBreakupHelper::getResult(BreakupUnit aBreakupUnit) const
+        {
+            if(mxResult.empty())
+            {
+                const_cast< TextBreakupHelper* >(this)->breakup(aBreakupUnit);
+            }
+
+            return mxResult;
+        }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */