| Quellcodebibliothek Statistik Leitseite products/sources/formale Sprachen/C/LibreOffice/svgio/source/svgreader/ (Office von Apache Version 25.8.3.2©) Datei vom 5.10.2025 mit Größe 58 kB |
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Quellcode-Bibliothek svgtools.cxx Sprache: C |
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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 <svgtools.hxx> #include <sal/log.hxx> #include <tools/color.hxx> #include <rtl/math.hxx> #include <o3tl/string_view.hxx> #include <basegfx/matrix/b2dhommatrix.hxx> #include <basegfx/matrix/b2dhommatrixtools.hxx> #include <basegfx/matrix/b3dhommatrix.hxx> #include <svgtoken.hxx> #include <frozen/bits/defines.h> #include <frozen/bits/elsa_std.h> #include <frozen/unordered_map.h> namespace svgio::svgreader { constexpr auto aColorTokenMapperList = frozen::make_unordered_map<std::u16string_view { { u"aliceblue", Color(240, 248, 255) }, { u"antiquewhite", Color(250, 235, 215) }, { u"aqua", Color( 0, 255, 255) }, { u"aquamarine", Color(127, 255, 212) }, { u"azure", Color(240, 255, 255) }, { u"beige", Color(245, 245, 220) }, { u"bisque", Color(255, 228, 196) }, { u"black", Color( 0, 0, 0) }, { u"blanchedalmond", Color(255, 235, 205) }, { u"blue", Color( 0, 0, 255) }, { u"blueviolet", Color(138, 43, 226) }, { u"brown", Color(165, 42, 42) }, { u"burlywood", Color(222, 184, 135) }, { u"cadetblue", Color( 95, 158, 160) }, { u"chartreuse", Color(127, 255, 0) }, { u"chocolate", Color(210, 105, 30) }, { u"coral", Color(255, 127, 80) }, { u"cornflowerblue", Color(100, 149, 237) }, { u"cornsilk", Color(255, 248, 220) }, { u"crimson", Color(220, 20, 60) }, { u"cyan", Color( 0, 255, 255) }, { u"darkblue", Color( 0, 0, 139) }, { u"darkcyan", Color( 0, 139, 139) }, { u"darkgoldenrod", Color(184, 134, 11) }, { u"darkgray", Color(169, 169, 169) }, { u"darkgreen", Color( 0, 100, 0) }, { u"darkgrey", Color(169, 169, 169) }, { u"darkkhaki", Color(189, 183, 107) }, { u"darkmagenta", Color(139, 0, 139) }, { u"darkolivegreen", Color( 85, 107, 47) }, { u"darkorange", Color(255, 140, 0) }, { u"darkorchid", Color(153, 50, 204) }, { u"darkred", Color(139, 0, 0) }, { u"darksalmon", Color(233, 150, 122) }, { u"darkseagreen", Color(143, 188, 143) }, { u"darkslateblue", Color( 72, 61, 139) }, { u"darkslategray", Color( 47, 79, 79) }, { u"darkslategrey", Color( 47, 79, 79) }, { u"darkturquoise", Color( 0, 206, 209) }, { u"darkviolet", Color(148, 0, 211) }, { u"deeppink", Color(255, 20, 147) }, { u"deepskyblue", Color( 0, 191, 255) }, { u"dimgray", Color(105, 105, 105) }, { u"dimgrey", Color(105, 105, 105) }, { u"dodgerblue", Color( 30, 144, 255) }, { u"firebrick", Color(178, 34, 34) }, { u"floralwhite", Color(255, 250, 240) }, { u"forestgreen", Color( 34, 139, 34) }, { u"fuchsia", Color(255, 0, 255) }, { u"gainsboro", Color(220, 220, 220) }, { u"ghostwhite", Color(248, 248, 255) }, { u"gold", Color(255, 215, 0) }, { u"goldenrod", Color(218, 165, 32) }, { u"gray", Color(128, 128, 128) }, { u"grey", Color(128, 128, 128) }, { u"green", Color(0, 128, 0) }, { u"greenyellow", Color(173, 255, 47) }, { u"honeydew", Color(240, 255, 240) }, { u"hotpink", Color(255, 105, 180) }, { u"indianred", Color(205, 92, 92) }, { u"indigo", Color( 75, 0, 130) }, { u"ivory", Color(255, 255, 240) }, { u"khaki", Color(240, 230, 140) }, { u"lavender", Color(230, 230, 250) }, { u"lavenderblush", Color(255, 240, 245) }, { u"lawngreen", Color(124, 252, 0) }, { u"lemonchiffon", Color(255, 250, 205) }, { u"lightblue", Color(173, 216, 230) }, { u"lightcoral", Color(240, 128, 128) }, { u"lightcyan", Color(224, 255, 255) }, { u"lightgoldenrodyellow", Color(250, 250, 210) }, { u"lightgray", Color(211, 211, 211) }, { u"lightgreen", Color(144, 238, 144) }, { u"lightgrey", Color(211, 211, 211) }, { u"lightpink", Color(255, 182, 193) }, { u"lightsalmon", Color(255, 160, 122) }, { u"lightseagreen", Color( 32, 178, 170) }, { u"lightskyblue", Color(135, 206, 250) }, { u"lightslategray", Color(119, 136, 153) }, { u"lightslategrey", Color(119, 136, 153) }, { u"lightsteelblue", Color(176, 196, 222) }, { u"lightyellow", Color(255, 255, 224) }, { u"lime", Color( 0, 255, 0) }, { u"limegreen", Color( 50, 205, 50) }, { u"linen", Color(250, 240, 230) }, { u"magenta", Color(255, 0, 255) }, { u"maroon", Color(128, 0, 0) }, { u"mediumaquamarine", Color(102, 205, 170) }, { u"mediumblue", Color( 0, 0, 205) }, { u"mediumorchid", Color(186, 85, 211) }, { u"mediumpurple", Color(147, 112, 219) }, { u"mediumseagreen", Color( 60, 179, 113) }, { u"mediumslateblue", Color(123, 104, 238) }, { u"mediumspringgreen", Color( 0, 250, 154) }, { u"mediumturquoise", Color( 72, 209, 204) }, { u"mediumvioletred", Color(199, 21, 133) }, { u"midnightblue", Color( 25, 25, 112) }, { u"mintcream", Color(245, 255, 250) }, { u"mistyrose", Color(255, 228, 225) }, { u"moccasin", Color(255, 228, 181) }, { u"navajowhite", Color(255, 222, 173) }, { u"navy", Color( 0, 0, 128) }, { u"oldlace", Color(253, 245, 230) }, { u"olive", Color(128, 128, 0) }, { u"olivedrab", Color(107, 142, 35) }, { u"orange", Color(255, 165, 0) }, { u"orangered", Color(255, 69, 0) }, { u"orchid", Color(218, 112, 214) }, { u"palegoldenrod", Color(238, 232, 170) }, { u"palegreen", Color(152, 251, 152) }, { u"paleturquoise", Color(175, 238, 238) }, { u"palevioletred", Color(219, 112, 147) }, { u"papayawhip", Color(255, 239, 213) }, { u"peachpuff", Color(255, 218, 185) }, { u"peru", Color(205, 133, 63) }, { u"pink", Color(255, 192, 203) }, { u"plum", Color(221, 160, 221) }, { u"powderblue", Color(176, 224, 230) }, { u"purple", Color(128, 0, 128) }, { u"rebeccapurple", Color(102, 51, 153) }, { u"red", Color(255, 0, 0) }, { u"rosybrown", Color(188, 143, 143) }, { u"royalblue", Color( 65, 105, 225) }, { u"saddlebrown", Color(139, 69, 19) }, { u"salmon", Color(250, 128, 114) }, { u"sandybrown", Color(244, 164, 96) }, { u"seagreen", Color( 46, 139, 87) }, { u"seashell", Color(255, 245, 238) }, { u"sienna", Color(160, 82, 45) }, { u"silver", Color(192, 192, 192) }, { u"skyblue", Color(135, 206, 235) }, { u"slateblue", Color(106, 90, 205) }, { u"slategray", Color(112, 128, 144) }, { u"slategrey", Color(112, 128, 144) }, { u"snow", Color(255, 250, 250) }, { u"springgreen", Color( 0, 255, 127) }, { u"steelblue", Color( 70, 130, 180) }, { u"tan", Color(210, 180, 140) }, { u"teal", Color( 0, 128, 128) }, { u"thistle", Color(216, 191, 216) }, { u"tomato", Color(255, 99, 71) }, { u"turquoise", Color( 64, 224, 208) }, { u"violet", Color(238, 130, 238) }, { u"wheat", Color(245, 222, 179) }, { u"white", Color(255, 255, 255) }, { u"whitesmoke", Color(245, 245, 245) }, { u"yellow", Color(255, 255, 0) }, { u"yellowgreen", Color(154, 205, 50) } }); basegfx::B2DHomMatrix SvgAspectRatio::createLinearMapping(const basegfx::B2DRange&&n { basegfx::B2DHomMatrix aRetval; const double fSWidth(rSource.getWidth()); const double fSHeight(rSource.getHeight()); const bool bNoSWidth(basegfx::fTools::equalZero(fSWidth)); const bool bNoSHeight(basegfx::fTools::equalZero(fSHeight)); // transform from source state to unit range aRetval.translate(-rSource.getMinX(), -rSource.getMinY()); aRetval.scale( (bNoSWidth ? 1.0 : 1.0 / fSWidth) * rTarget.getWidth(), (bNoSHeight ? 1.0 : 1.0 / fSHeight) * rTarget.getHeight()); // transform from unit rage to target range aRetval.translate(rTarget.getMinX(), rTarget.getMinY()); return aRetval; } basegfx::B2DHomMatrix SvgAspectRatio::createMapping(const basegfx::B2DRange& rT { // removed !isSet() from below. Due to correct defaults in the constructor an instance // of this class is perfectly useful without being set by any importer if(SvgAlign::none == getSvgAlign()) { // create linear mapping (default) return createLinearMapping(rTarget, rSource); } basegfx::B2DHomMatrix aRetval; const double fSWidth(rSource.getWidth()); const double fSHeight(rSource.getHeight()); const bool bNoSWidth(basegfx::fTools::equalZero(fSWidth)); const bool bNoSHeight(basegfx::fTools::equalZero(fSHeight)); const double fScaleX((bNoSWidth ? 1.0 : 1.0 / fSWidth) * rTarget.getWidth()); const double fScaleY((bNoSHeight ? 1.0 : 1.0 / fSHeight) * rTarget.getHeight()); const double fScale(isMeetOrSlice() ? std::min(fScaleX, fScaleY) : std::max(fScaleX, fSc // remove source translation, apply scale aRetval.translate(-rSource.getMinX(), -rSource.getMinY()); aRetval.scale(fScale, fScale); // evaluate horizontal alignment const double fNewWidth(fSWidth * fScale); double fTransX(0.0); switch(getSvgAlign()) { case SvgAlign::xMidYMin: case SvgAlign::xMidYMid: case SvgAlign::xMidYMax: { // centerX const double fFreeSpace(rTarget.getWidth() - fNewWidth); fTransX = fFreeSpace * 0.5; break; } case SvgAlign::xMaxYMin: case SvgAlign::xMaxYMid: case SvgAlign::xMaxYMax: { // Right align const double fFreeSpace(rTarget.getWidth() - fNewWidth); fTransX = fFreeSpace; break; } default: break; } // evaluate vertical alignment const double fNewHeight(fSHeight * fScale); double fTransY(0.0); switch(getSvgAlign()) { case SvgAlign::xMinYMid: case SvgAlign::xMidYMid: case SvgAlign::xMaxYMid: { // centerY const double fFreeSpace(rTarget.getHeight() - fNewHeight); fTransY = fFreeSpace * 0.5; break; } case SvgAlign::xMinYMax: case SvgAlign::xMidYMax: case SvgAlign::xMaxYMax: { // Bottom align const double fFreeSpace(rTarget.getHeight() - fNewHeight); fTransY = fFreeSpace; break; } default: break; } // add target translation aRetval.translate( rTarget.getMinX() + fTransX, rTarget.getMinY() + fTransY); return aRetval; } void skip_char(std::u16string_view rCandidate, sal_Unicode nChar, sal_Int32& nPos, { while(nPos < nLen && nChar == rCandidate[nPos]) { nPos++; } } void skip_char(std::u16string_view rCandidate, sal_Unicode nCharA, sal_Unicode nCharB, { while(nPos < nLen && (nCharA == rCandidate[nPos] || nCharB == rCandidate[nPos])) { nPos++; } } void copySign(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer& { if(nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); if('+' == aChar || '-' == aChar) { rTarget.append(aChar); nPos++; } } } void copyNumber(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer&&nb { bool bOnNumber(true); while(bOnNumber && nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); bOnNumber = ('0' <= aChar && '9' >= aChar) || '.' == aChar; if(bOnNumber) { rTarget.append(aChar); nPos++; } } } void copyHex(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer& { bool bOnHex(true); while(bOnHex && nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); bOnHex = ('0' <= aChar && '9' >= aChar) || ('A' <= aChar && 'F' >= aChar) || ('a' <= aChar && 'f' >= aChar); if(bOnHex) { rTarget.append(aChar); nPos++; } } } void copyString(std::u16string_view rCandidate, sal_Int32& nPos, OUStringBuffer&&nb { bool bOnChar(true); while(bOnChar && nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); bOnChar = ('a' <= aChar && 'z' >= aChar) || ('A' <= aChar && 'Z' >= aChar) || '-' == aChar; if(bOnChar) { rTarget.append(aChar); nPos++; } } } void copyToLimiter(std::u16string_view rCandidate, sal_Unicode nLimiter, sal_Int32&&nbs { while(nPos < nLen && nLimiter != rCandidate[nPos]) { rTarget.append(rCandidate[nPos]); nPos++; } } bool readNumber(std::u16string_view rCandidate, sal_Int32& nPos, double& fNum, { if(nPos < nLen) { OUStringBuffer aNum; copySign(rCandidate, nPos, aNum, nLen); copyNumber(rCandidate, nPos, aNum, nLen); if(nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); if('e' == aChar || 'E' == aChar) { // try to read exponential number, but be careful. I had // a case where dx="2em" was used, thus the 'e' was consumed // by error. First try if there are numbers after the 'e', // safe current state nPos++; const OUString aNum2(aNum); const sal_Int32 nPosAfterE(nPos); aNum.append(aChar); copySign(rCandidate, nPos, aNum, nLen); copyNumber(rCandidate, nPos, aNum, nLen); if(nPosAfterE == nPos) { // no number after 'e', go back. Do not // return false, it's still a valid integer number aNum = aNum2; nPos--; } } } if(!aNum.isEmpty()) { rtl_math_ConversionStatus eStatus; fNum = rtl::math::stringToDouble( aNum, '.', ',', &eStatus); return eStatus == rtl_math_ConversionStatus_Ok; } } return false; } SvgUnit readUnit(std::u16string_view rCandidate, sal_Int32& nPos, const sal_Int32 n { SvgUnit aRetval(SvgUnit::px); if(nPos < nLen) { const sal_Unicode aCharA(rCandidate[nPos]); if('%' == aCharA) { // percent used, relative to current nPos++; aRetval = SvgUnit::percent; } else if(nPos + 1 < nLen) { const sal_Unicode aCharB(rCandidate[nPos + 1]); bool bTwoCharValid(false); switch(aCharA) { case u'e' : { if('m' == aCharB) { // 'em' Relative to current font size aRetval = SvgUnit::em; bTwoCharValid = true; } else if('x' == aCharB) { // 'ex' Relative to current font x-height aRetval = SvgUnit::ex; bTwoCharValid = true; } break; } case u'p' : { if('x' == aCharB) { // 'px' UserUnit (default) bTwoCharValid = true; } else if('t' == aCharB) { // 'pt' == 4/3 px aRetval = SvgUnit::pt; bTwoCharValid = true; } else if('c' == aCharB) { // 'pc' == 16 px aRetval = SvgUnit::pc; bTwoCharValid = true; } break; } case u'i' : { if('n' == aCharB) { // 'in' == 96 px, since CSS 2.1 aRetval = SvgUnit::in; bTwoCharValid = true; } break; } case u'c' : { if('m' == aCharB) { // 'cm' == 37.79527559 px aRetval = SvgUnit::cm; bTwoCharValid = true; } break; } case u'm' : { if('m' == aCharB) { // 'mm' == 3.779528 px aRetval = SvgUnit::mm; bTwoCharValid = true; } break; } } if(bTwoCharValid) { nPos += 2; } } } return aRetval; } bool readNumberAndUnit(std::u16string_view rCandidate, sal_Int32& nPos, SvgNumber&& { double fNum(0.0); if(readNumber(rCandidate, nPos, fNum, nLen)) { skip_char(rCandidate, ' ', nPos, nLen); aNum = SvgNumber(fNum, readUnit(rCandidate, nPos, nLen)); return true; } return false; } bool readAngle(std::u16string_view rCandidate, sal_Int32& nPos, double& fAngle { if(readNumber(rCandidate, nPos, fAngle, nLen)) { skip_char(rCandidate, ' ', nPos, nLen); enum class DegreeType { deg, grad, rad } aType(DegreeType::deg); // degrees is default if(nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); static constexpr std::u16string_view aStrGrad = u"grad"; static constexpr std::u16string_view aStrRad = u"rad"; switch(aChar) { case u'g' : case u'G' : { if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrGrad, nPos)) { // angle in grad nPos += aStrGrad.size(); aType = DegreeType::grad; } break; } case u'r' : case u'R' : { if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrRad, nPos)) { // angle in radians nPos += aStrRad.size(); aType = DegreeType::rad; } break; } } } // convert to radians if (DegreeType::deg == aType) { fAngle = basegfx::deg2rad(fAngle); } else if (DegreeType::grad == aType) { // looks like 100 grad is 90 degrees fAngle *= M_PI / 200.0; } return true; } return false; } sal_Int32 read_hex(sal_Unicode nChar) { if(nChar >= '0' && nChar <= '9') { return nChar - u'0'; } else if(nChar >= 'A' && nChar <= 'F') { return 10 + sal_Int32(nChar - u'A'); } else if(nChar >= 'a' && nChar <= 'f') { return 10 + sal_Int32(nChar - u'a'); } else { // error return 0; } } bool match_colorKeyword(basegfx::BColor& rColor, const OUString& rName) { auto const aResult = aColorTokenMapperList.find(rName.toAsciiLowerCase().trim()); if(aResult == aColorTokenMapperList.end()) { return false; } else { rColor = aResult->second.getBColor(); return true; } } bool read_color(const OUString& rCandidate, basegfx::BColor& rColor, SvgNumber&& { const sal_Int32 nLen(rCandidate.getLength()); if(nLen) { const sal_Unicode aChar(rCandidate[0]); const double fFactor(1.0 / 255.0); if(aChar == '#') { // hex definition OUStringBuffer aNum; sal_Int32 nPos(1); copyHex(rCandidate, nPos, aNum, nLen); const sal_Int32 nLength(aNum.getLength()); if(3 == nLength) { const sal_Int32 nR(read_hex(aNum[0])); const sal_Int32 nG(read_hex(aNum[1])); const sal_Int32 nB(read_hex(aNum[2])); rColor.setRed((nR | (nR << 4)) * fFactor); rColor.setGreen((nG | (nG << 4)) * fFactor); rColor.setBlue((nB | (nB << 4)) * fFactor); return true; } else if(6 == nLength) { const sal_Int32 nR1(read_hex(aNum[0])); const sal_Int32 nR2(read_hex(aNum[1])); const sal_Int32 nG1(read_hex(aNum[2])); const sal_Int32 nG2(read_hex(aNum[3])); const sal_Int32 nB1(read_hex(aNum[4])); const sal_Int32 nB2(read_hex(aNum[5])); rColor.setRed((nR2 | (nR1 << 4)) * fFactor); rColor.setGreen((nG2 | (nG1 << 4)) * fFactor); rColor.setBlue((nB2 | (nB1 << 4)) * fFactor); return true; } } else { static const char aStrRgb[] = "rgb"; if(rCandidate.matchIgnoreAsciiCase(aStrRgb, 0)) { // rgb/rgba definition sal_Int32 nPos(strlen(aStrRgb)); bool bIsRGBA = false; if('a' == rCandidate[nPos]) { //Delete the 'a' from 'rbga' skip_char(rCandidate, 'a', nPos, nPos + 1); bIsRGBA = true; } skip_char(rCandidate, ' ', '(', nPos, nLen); double fR(0.0); if(readNumber(rCandidate, nPos, fR, nLen)) { skip_char(rCandidate, ' ', nPos, nLen); if(nPos < nLen) { const sal_Unicode aPercentChar(rCandidate[nPos]); const bool bIsPercent('%' == aPercentChar); double fG(0.0); if(bIsPercent) { skip_char(rCandidate, '%', nPos, nLen); } skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumber(rCandidate, nPos, fG, nLen)) { double fB(0.0); if(bIsPercent) { skip_char(rCandidate, '%', nPos, nLen); } skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumber(rCandidate, nPos, fB, nLen)) { double fA(1.0); if(bIsPercent) { skip_char(rCandidate, '%', nPos, nLen); } skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumber(rCandidate, nPos, fA, nLen)) { if(bIsRGBA) { const double fFac(bIsPercent ? 0.01 : 1); rOpacity = SvgNumber(fA * fFac); if(bIsPercent) { skip_char(rCandidate, '%', nPos, nLen); } } else { return false; } } const double fFac(bIsPercent ? 0.01 : fFactor); rColor.setRed(fR * fFac); rColor.setGreen(fG * fFac); rColor.setBlue(fB * fFac); skip_char(rCandidate, ' ', ')', nPos, nLen); return true; } } } } } else { // color keyword if(match_colorKeyword(rColor, rCandidate)) { return true; } } } } return false; } basegfx::B2DRange readViewBox(std::u16string_view rCandidate, InfoProvider const & { const sal_Int32 nLen(rCandidate.size()); if(nLen) { sal_Int32 nPos(0); SvgNumber aMinX; skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aMinX, nLen)) { SvgNumber aMinY; skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aMinY, nLen)) { SvgNumber aWidth; skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aWidth, nLen)) { SvgNumber aHeight; skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aHeight, nLen)) { double fX(aMinX.solve(rInfoProvider, NumberType::xcoordinate)); double fY(aMinY.solve(rInfoProvider, NumberType::ycoordinate)); double fW(aWidth.solve(rInfoProvider, NumberType::xcoordinate)); double fH(aHeight.solve(rInfoProvider, NumberType::ycoordinate)); return basegfx::B2DRange(fX,fY,fX+fW,fY+fH); } } } } } return basegfx::B2DRange(); } std::vector<double> readFilterMatrix(std::u16string_view rCandidate, InfoProvider cons { std::vector<double> aVector; const sal_Int32 nLen(rCandidate.size()); sal_Int32 nPos(0); skip_char(rCandidate, ' ', ',', nPos, nLen); SvgNumber aVal; while (nPos < nLen) { if(readNumberAndUnit(rCandidate, nPos, aVal, nLen)) { aVector.push_back(aVal.solve(rInfoProvider)); skip_char(rCandidate, ' ', ',', nPos, nLen); } } return aVector; } basegfx::B2DHomMatrix readTransform(std::u16string_view rCandidate, InfoProvider con { basegfx::B2DHomMatrix aMatrix; const sal_Int32 nLen(rCandidate.size()); if(nLen) { sal_Int32 nPos(0); skip_char(rCandidate, ' ', ',', nPos, nLen); while(nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); const sal_Int32 nInitPos(nPos); static constexpr std::u16string_view aStrMatrix = u"matrix"; static constexpr std::u16string_view aStrTranslate = u"translate"; static constexpr std::u16string_view aStrScale = u"scale"; static constexpr std::u16string_view aStrRotate = u"rotate"; static constexpr std::u16string_view aStrSkewX = u"skewX"; static constexpr std::u16string_view aStrSkewY = u"skewY"; switch(aChar) { case u'm' : { if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrMatrix, nPos)) { // matrix element nPos += aStrMatrix.size(); skip_char(rCandidate, ' ', '(', nPos, nLen); SvgNumber aVal; basegfx::B2DHomMatrix aNew; if(readNumberAndUnit(rCandidate, nPos, aVal, nLen)) { aNew.set(0, 0, aVal.solve(rInfoProvider)); // Element A skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aVal, nLen)) { aNew.set(1, 0, aVal.solve(rInfoProvider)); // Element B skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aVal, nLen)) { aNew.set(0, 1, aVal.solve(rInfoProvider)); // Element C skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aVal, nLen)) { aNew.set(1, 1, aVal.solve(rInfoProvider)); // Element D skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aVal, nLen)) { aNew.set(0, 2, aVal.solve(rInfoProvider, NumberType::xcoordinate)); // Element E skip_char(rCandidate, ' ', ',', nPos, nLen); if(readNumberAndUnit(rCandidate, nPos, aVal, nLen)) { aNew.set(1, 2, aVal.solve(rInfoProvider, NumberType::ycoordinate)); // Element F skip_char(rCandidate, ' ', ')', nPos, nLen); skip_char(rCandidate, ' ', ',', nPos, nLen); // caution: String is evaluated from left to right, but matrix multiplication // in SVG is right to left, so put the new transformation before the current // one by multiplicating from the right side aMatrix = aMatrix * aNew; } } } } } } } break; } case u't' : { if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrTranslate, nPos)) { // translate element nPos += aStrTranslate.size(); skip_char(rCandidate, ' ', '(', nPos, nLen); SvgNumber aTransX; if(readNumberAndUnit(rCandidate, nPos, aTransX, nLen)) { skip_char(rCandidate, ' ', ',', nPos, nLen); SvgNumber aTransY; readNumberAndUnit(rCandidate, nPos, aTransY, nLen); skip_char(rCandidate, ' ', ')', nPos, nLen); skip_char(rCandidate, ' ', ',', nPos, nLen); aMatrix = aMatrix * basegfx::utils::createTranslateB2DHomMatrix( aTransX.solve(rInfoProvider, NumberType::xcoordinate), aTransY.solve(rInfoProvider, NumberType::ycoordinate)); } } break; } case u's' : { if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrScale, nPos)) { // scale element nPos += aStrScale.size(); skip_char(rCandidate, ' ', '(', nPos, nLen); SvgNumber aScaleX; if(readNumberAndUnit(rCandidate, nPos, aScaleX, nLen)) { skip_char(rCandidate, ' ', ',', nPos, nLen); SvgNumber aScaleY(aScaleX); readNumberAndUnit(rCandidate, nPos, aScaleY, nLen); skip_char(rCandidate, ' ', ')', nPos, nLen); skip_char(rCandidate, ' ', ',', nPos, nLen); aMatrix = aMatrix * basegfx::utils::createScaleB2DHomMatrix( aScaleX.solve(rInfoProvider), aScaleY.solve(rInfoProvider)); } } else if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrSkewX, nPos)) { // skewx element nPos += aStrSkewX.size(); skip_char(rCandidate, ' ', '(', nPos, nLen); double fSkewX(0.0); if(readAngle(rCandidate, nPos, fSkewX, nLen)) { skip_char(rCandidate, ' ', ')', nPos, nLen); skip_char(rCandidate, ' ', ',', nPos, nLen); aMatrix = aMatrix * basegfx::utils::createShearXB2DHomMatrix(tan(fSkewX)); } } else if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrSkewY, nPos)) { // skewy element nPos += aStrSkewY.size(); skip_char(rCandidate, ' ', '(', nPos, nLen); double fSkewY(0.0); if(readAngle(rCandidate, nPos, fSkewY, nLen)) { skip_char(rCandidate, ' ', ')', nPos, nLen); skip_char(rCandidate, ' ', ',', nPos, nLen); aMatrix = aMatrix * basegfx::utils::createShearYB2DHomMatrix(tan(fSkewY)); } } break; } case u'r' : { if(o3tl::matchIgnoreAsciiCase(rCandidate, aStrRotate, nPos)) { // rotate element nPos += aStrRotate.size(); skip_char(rCandidate, ' ', '(', nPos, nLen); double fAngle(0.0); if(readAngle(rCandidate, nPos, fAngle, nLen)) { skip_char(rCandidate, ' ', ',', nPos, nLen); SvgNumber aX; readNumberAndUnit(rCandidate, nPos, aX, nLen); skip_char(rCandidate, ' ', ',', nPos, nLen); SvgNumber aY; readNumberAndUnit(rCandidate, nPos, aY, nLen); skip_char(rCandidate, ' ', ')', nPos, nLen); skip_char(rCandidate, ' ', ',', nPos, nLen); const double fX(aX.isSet() ? aX.solve(rInfoProvider, NumberType::xcoordinate) : 0.0); const double fY(aY.isSet() ? aY.solve(rInfoProvider, NumberType::ycoordinate) : 0.0); if(!basegfx::fTools::equalZero(fX) || !basegfx::fTools::equalZero(fY)) { // rotate around point aMatrix = aMatrix * basegfx::utils::createRotateAroundPoint(fX, fY, fAngle); } else { // rotate aMatrix = aMatrix * basegfx::utils::createRotateB2DHomMatrix(fAngle); } } } break; } } if(nInitPos == nPos) { SAL_WARN("svgio", "Could not interpret on current position (!)"); nPos++; } } } return aMatrix; } bool readSingleNumber(std::u16string_view rCandidate, SvgNumber& aNum) { const sal_Int32 nLen(rCandidate.size()); sal_Int32 nPos(0); return readNumberAndUnit(rCandidate, nPos, aNum, nLen); } bool readLocalLink(std::u16string_view rCandidate, OUString& rURL) { sal_Int32 nPos(0); const sal_Int32 nLen(rCandidate.size()); skip_char(rCandidate, ' ', nPos, nLen); if (nLen && nPos < nLen && '#' == rCandidate[nPos]) { ++nPos; rURL = rCandidate.substr(nPos); return true; } return false; } bool readLocalUrl(const OUString& rCandidate, OUString& rURL) { static const char aStrUrl[] = "url("; if(rCandidate.startsWithIgnoreAsciiCase(aStrUrl)) { const sal_Int32 nLen(rCandidate.getLength()); sal_Int32 nPos(strlen(aStrUrl)); sal_Unicode aLimiter(')'); skip_char(rCandidate, ' ', nPos, nLen); if('"' == rCandidate[nPos]) { aLimiter = '"'; ++nPos; } else if('\'' == rCandidate[nPos]) { aLimiter = '\''; ++nPos; } skip_char(rCandidate, ' ', nPos, nLen); skip_char(rCandidate, '#', nPos, nPos + 1); OUStringBuffer aTokenValue; copyToLimiter(rCandidate, aLimiter, nPos, aTokenValue, nLen); rURL = aTokenValue.makeStringAndClear(); return true; } return false; } bool readSvgPaint(const OUString& rCandidate, SvgPaint& rSvgPaint, OUString& rURL, SvgNumber& rOpacity) { if( !rCandidate.isEmpty() ) { basegfx::BColor aColor; if(read_color(rCandidate, aColor, rOpacity)) { rSvgPaint = SvgPaint(aColor, true, true); return true; } else { if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(rCandidate), u"none") || o3tl::equalsIgnoreAsciiCase(o3tl::trim(rCandidate), u"transparent")) { rSvgPaint = SvgPaint(aColor, true, false, false); return true; } else if(readLocalUrl(rCandidate, rURL)) { /// Url is copied to rURL, but needs to be solved outside this helper return false; } else if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(rCandidate), u"currentColor")) { rSvgPaint = SvgPaint(aColor, true, true, true); return true; } } } return false; } bool readSvgNumberVector(std::u16string_view rCandidate, SvgNumberVector& rSvgNu { const sal_Int32 nLen(rCandidate.size()); rSvgNumberVector.clear(); if(nLen) { sal_Int32 nPos(0); SvgNumber aNum; skip_char(rCandidate, ' ', ',', nPos, nLen); while(readNumberAndUnit(rCandidate, nPos, aNum, nLen)) { rSvgNumberVector.push_back(aNum); skip_char(rCandidate, ' ', ',', nPos, nLen); } return !rSvgNumberVector.empty(); } return false; } SvgAspectRatio readSvgAspectRatio(std::u16string_view rCandidate) { const sal_Int32 nLen(rCandidate.size()); if(nLen) { sal_Int32 nPos(0); SvgAlign aSvgAlign(SvgAlign::xMidYMid); bool bMeetOrSlice(true); bool bChanged(false); while(nPos < nLen) { const sal_Int32 nInitPos(nPos); skip_char(rCandidate, ' ', nPos, nLen); OUStringBuffer aTokenName; copyString(rCandidate, nPos, aTokenName, nLen); if(!aTokenName.isEmpty()) { switch(StrToSVGToken(aTokenName.makeStringAndClear(), false)) { case SVGToken::Defer: { bChanged = true; break; } case SVGToken::None: { aSvgAlign = SvgAlign::none; bChanged = true; break; } case SVGToken::XMinYMin: { aSvgAlign = SvgAlign::xMinYMin; bChanged = true; break; } case SVGToken::XMidYMin: { aSvgAlign = SvgAlign::xMidYMin; bChanged = true; break; } case SVGToken::XMaxYMin: { aSvgAlign = SvgAlign::xMaxYMin; bChanged = true; break; } case SVGToken::XMinYMid: { aSvgAlign = SvgAlign::xMinYMid; bChanged = true; break; } case SVGToken::XMidYMid: { aSvgAlign = SvgAlign::xMidYMid; bChanged = true; break; } case SVGToken::XMaxYMid: { aSvgAlign = SvgAlign::xMaxYMid; bChanged = true; break; } case SVGToken::XMinYMax: { aSvgAlign = SvgAlign::xMinYMax; bChanged = true; break; } case SVGToken::XMidYMax: { aSvgAlign = SvgAlign::xMidYMax; bChanged = true; break; } case SVGToken::XMaxYMax: { aSvgAlign = SvgAlign::xMaxYMax; bChanged = true; break; } case SVGToken::Meet: { bMeetOrSlice = true; bChanged = true; break; } case SVGToken::Slice: { bMeetOrSlice = false; bChanged = true; break; } default: { break; } } } if(nInitPos == nPos) { SAL_WARN("svgio", "Could not interpret on current position (!)"); nPos++; } } if(bChanged) { return SvgAspectRatio(aSvgAlign, bMeetOrSlice); } } return SvgAspectRatio(); } bool readSvgStringVector(std::u16string_view rCandidate, SvgStringVector& rSvgSt { rSvgStringVector.clear(); const sal_Int32 nLen(rCandidate.size()); if(nLen) { sal_Int32 nPos(0); OUStringBuffer aTokenValue; skip_char(rCandidate, ' ', ',', nPos, nLen); while(nPos < nLen) { copyToLimiter(rCandidate, nSeparator, nPos, aTokenValue, nLen); skip_char(rCandidate, nSeparator, nPos, nLen); const OUString aString = aTokenValue.makeStringAndClear(); if(!aString.isEmpty()) { rSvgStringVector.push_back(aString); } } } return !rSvgStringVector.empty(); } void readImageLink(const OUString& rCandidate, OUString& rXLink, OUString& { rXLink.clear(); rUrl.clear(); rData.clear(); if(!readLocalLink(rCandidate, rXLink)) { static const char aStrData[] = "data:"; if(rCandidate.matchIgnoreAsciiCase(aStrData, 0)) { // embedded data sal_Int32 nPos(strlen(aStrData)); sal_Int32 nLen(rCandidate.getLength()); OUStringBuffer aBuffer; // read mime type skip_char(rCandidate, ' ', nPos, nLen); copyToLimiter(rCandidate, ';', nPos, aBuffer, nLen); skip_char(rCandidate, ' ', ';', nPos, nLen); const OUString aMimeType = aBuffer.makeStringAndClear(); if(!aMimeType.isEmpty() && nPos < nLen) { if(aMimeType.startsWith("image")) { // image data std::u16string_view aData(rCandidate.subView(nPos)); static constexpr std::u16string_view aStrBase64 = u"base64"; if(o3tl::starts_with(aData, aStrBase64)) { // base64 encoded nPos = aStrBase64.size(); nLen = aData.size(); skip_char(aData, ' ', ',', nPos, nLen); if(nPos < nLen) { rData = aData.substr(nPos); } } } } } else { // Url (path and filename) rUrl = rCandidate; } } } // #i125325# OUString removeBlockComments(const OUString& rCandidate) { const sal_Int32 nLen(rCandidate.getLength()); if(nLen) { sal_Int32 nPos(0); OUStringBuffer aBuffer; bool bChanged(false); sal_Int32 nInsideComment(0); const sal_Unicode aCommentSlash('/'); const sal_Unicode aCommentStar('*'); while(nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); const bool bStart(aCommentSlash == aChar && nPos + 1 < nLen && aCommentStar == rCandidate[nPos + 1]); const bool bEnd(aCommentStar == aChar && nPos + 1 < nLen && aCommentSlash == rCandidate[nPos + 1]); if(bStart) { nPos += 2; nInsideComment++; bChanged = true; } else if(bEnd) { nPos += 2; nInsideComment--; } else { if(!nInsideComment) { aBuffer.append(aChar); } nPos++; } } if(bChanged) { return aBuffer.makeStringAndClear(); } } return rCandidate; } OUString consolidateContiguousSpace(const OUString& rCandidate) { const sal_Int32 nLen(rCandidate.getLength()); if(nLen) { sal_Int32 nPos(0); OUStringBuffer aBuffer; bool bInsideSpace(false); const sal_Unicode aSpace(' '); while(nPos < nLen) { const sal_Unicode aChar(rCandidate[nPos]); if(aSpace == aChar) { bInsideSpace = true; } else { if(bInsideSpace) { bInsideSpace = false; aBuffer.append(aSpace); } aBuffer.append(aChar); } nPos++; } if(bInsideSpace) { aBuffer.append(aSpace); } if(aBuffer.getLength() != nLen) { return aBuffer.makeStringAndClear(); } } return rCandidate; } ::std::vector< double > solveSvgNumberVector(const SvgNumberVector& rInput, const Inf { ::std::vector< double > aRetval; if(!rInput.empty()) { const double nCount(rInput.size()); aRetval.reserve(nCount); for(sal_uInt32 a(0); a < nCount; a++) { aRetval.push_back(rInput[a].solve(rInfoProvider)); } } return aRetval; } } // end of namespace svgio::svgreader /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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2026-04-04