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Diffstat (limited to 'svgio/inc/svgtools.hxx')
| -rw-r--r-- | svgio/inc/svgtools.hxx | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/svgio/inc/svgtools.hxx b/svgio/inc/svgtools.hxx new file mode 100644 index 000000000..215ea6e87 --- /dev/null +++ b/svgio/inc/svgtools.hxx @@ -0,0 +1,228 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_SVGIO_INC_SVGTOOLS_HXX +#define INCLUDED_SVGIO_INC_SVGTOOLS_HXX + +#include <basegfx/color/bcolor.hxx> +#include <basegfx/range/b2drange.hxx> +#include <basegfx/vector/b2ivector.hxx> +#include <rtl/ustrbuf.hxx> +#include "svgpaint.hxx" +#include <vector> + +namespace svgio +{ + namespace svgreader + { + +// recommended value for this device dependent unit, see CSS2 section 4.3.2 Lengths +#define F_SVG_PIXEL_PER_INCH 96.0 + + // common non-token strings + struct commonStrings + { + static const OUString aStrUserSpaceOnUse; + static const OUString aStrObjectBoundingBox; + static const OUString aStrNonzero; + static const OUString aStrEvenOdd; + }; + + enum SvgUnits + { + userSpaceOnUse, + objectBoundingBox + }; + + enum NumberType + { + xcoordinate, + ycoordinate, + length + }; + + class InfoProvider + { + public: + virtual ~InfoProvider() {} + virtual basegfx::B2DRange getCurrentViewPort() const = 0; + /// return font size of node inherited from parents + virtual double getCurrentFontSizeInherited() const = 0; + /// return xheight of node inherited from parents + virtual double getCurrentXHeightInherited() const = 0; + }; + + enum SvgUnit + { + Unit_em = 0, // relative to current font size + Unit_ex, // relative to current x-height + + Unit_px, // 'user unit' + Unit_pt, // points, 1.25 px + Unit_pc, // 15.0 px + Unit_cm, // 35.43307 px + Unit_mm, // 3.543307 px + Unit_in, // 90 px + + Unit_percent, // relative to range + Unit_none // for stroke-miterlimit, which has no unit + }; + + class SvgNumber + { + private: + double mfNumber; + SvgUnit meUnit; + + bool mbSet : 1; + + public: + SvgNumber() + : mfNumber(0.0), + meUnit(Unit_px), + mbSet(false) + { + } + + SvgNumber(double fNum, SvgUnit aSvgUnit = Unit_px, bool bSet = true) + : mfNumber(fNum), + meUnit(aSvgUnit), + mbSet(bSet) + { + } + + double getNumber() const + { + return mfNumber; + } + + SvgUnit getUnit() const + { + return meUnit; + } + + bool isSet() const + { + return mbSet; + } + + bool isPositive() const; + + // Only usable in cases, when the unit is not Unit_percent, otherwise use method solve + double solveNonPercentage(const InfoProvider& rInfoProvider) const; + + double solve(const InfoProvider& rInfoProvider, NumberType aNumberType = length) const; + + + }; + + typedef ::std::vector< SvgNumber > SvgNumberVector; + + enum SvgAlign + { + Align_none, + Align_xMinYMin, + Align_xMidYMin, + Align_xMaxYMin, + Align_xMinYMid, + Align_xMidYMid, // default + Align_xMaxYMid, + Align_xMinYMax, + Align_xMidYMax, + Align_xMaxYMax + }; + + class SvgAspectRatio + { + private: + SvgAlign maSvgAlign; + + bool mbMeetOrSlice : 1; // true = meet (default), false = slice + bool mbSet : 1; + + public: + SvgAspectRatio() + : maSvgAlign(Align_xMidYMid), + mbMeetOrSlice(true), + mbSet(false) + { + } + + SvgAspectRatio(SvgAlign aSvgAlign, bool bMeetOrSlice) + : maSvgAlign(aSvgAlign), + mbMeetOrSlice(bMeetOrSlice), + mbSet(true) + { + } + + /// data read access + SvgAlign getSvgAlign() const { return maSvgAlign; } + bool isMeetOrSlice() const { return mbMeetOrSlice; } + bool isSet() const { return mbSet; } + + /// tooling + static basegfx::B2DHomMatrix createLinearMapping(const basegfx::B2DRange& rTarget, const basegfx::B2DRange& rSource); + basegfx::B2DHomMatrix createMapping(const basegfx::B2DRange& rTarget, const basegfx::B2DRange& rSource) const; + }; + + void skip_char(const OUString& rCandidate, sal_Unicode aChar, sal_Int32& nPos, const sal_Int32 nLen); + void skip_char(const OUString& rCandidate, sal_Unicode aCharA, sal_Unicode nCharB, sal_Int32& nPos, const sal_Int32 nLen); + void copySign(const OUString& rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen); + void copyNumber(const OUString& rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen); + void copyHex(const OUString& rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen); + void copyString(const OUString& rCandidate, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen); + void copyToLimiter(const OUString& rCandidate, sal_Unicode aLimiter, sal_Int32& nPos, OUStringBuffer& rTarget, const sal_Int32 nLen); + bool readNumber(const OUString& rCandidate, sal_Int32& nPos, double& fNum, const sal_Int32 nLen); + SvgUnit readUnit(const OUString& rCandidate, sal_Int32& nPos, const sal_Int32 nLen); + bool readNumberAndUnit(const OUString& rCandidate, sal_Int32& nPos, SvgNumber& aNum, const sal_Int32 nLen); + bool readAngle(const OUString& rCandidate, sal_Int32& nPos, double& fAngle, const sal_Int32 nLen); + sal_Int32 read_hex(sal_Unicode aChar); + bool match_colorKeyword(basegfx::BColor& rColor, const OUString& rName, bool bCaseIndependent); + bool read_color(const OUString& rCandidate, basegfx::BColor& rColor, bool bCaseIndependent, SvgNumber& rOpacity); + basegfx::B2DRange readViewBox(const OUString& rCandidate, InfoProvider const & rInfoProvider); + basegfx::B2DHomMatrix readTransform(const OUString& rCandidate, InfoProvider const & rInfoProvider); + bool readSingleNumber(const OUString& rCandidate, SvgNumber& aNum); + bool readLocalUrl(const OUString& rCandidate, OUString& rURL); + bool readSvgPaint(const OUString& rCandidate, SvgPaint& rSvgPaint, OUString& rURL, bool bCaseIndependent, SvgNumber& rOpacity); + + bool readSvgNumberVector(const OUString& rCandidate, SvgNumberVector& rSvgNumberVector); + ::std::vector< double > solveSvgNumberVector(const SvgNumberVector& rInput, const InfoProvider& rInfoProvider); + + SvgAspectRatio readSvgAspectRatio(const OUString& rCandidate); + + typedef ::std::vector< OUString > SvgStringVector; + bool readSvgStringVector(const OUString& rCandidate, SvgStringVector& rSvgStringVector); + + void readImageLink(const OUString& rCandidate, OUString& rXLink, OUString& rUrl, OUString& rMimeType, OUString& rData); + + OUString convert(const OUString& rCandidate, sal_Unicode nPattern, sal_Unicode nNew, bool bRemove); + OUString consolidateContiguousSpace(const OUString& rCandidate); + OUString whiteSpaceHandlingDefault(const OUString& rCandidate); + OUString whiteSpaceHandlingPreserve(const OUString& rCandidate); + + // #125325# removes block comment of the general form '/* ... */', returns + // an adapted string or the original if no comments included + OUString removeBlockComments(const OUString& rCandidate); + + } // end of namespace svgreader +} // end of namespace svgio + +#endif // INCLUDED_SVGIO_INC_SVGTOOLS_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |