svgio/inc/svgpatternnode.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
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   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include "svgnode.hxx"
  23 #include "svgstyleattributes.hxx"
  24 #include <basegfx/matrix/b2dhommatrix.hxx>
  25 #include <memory>
  26
  27 namespace svgio::svgreader
  28     {
  29         class SvgPatternNode final : public SvgNode
  30         {
  31         private:
  32             /// buffered decomposition
  33             drawinglayer::primitive2d::Primitive2DContainer aPrimitives;
  34
  35             /// use styles
  36             SvgStyleAttributes      maSvgStyleAttributes;
  37
  38             /// variable scan values, dependent of given XAttributeList
  39             std::unique_ptr<basegfx::B2DRange>
  40                                     mpViewBox;
  41             SvgAspectRatio          maSvgAspectRatio;
  42             SvgNumber               maX;
  43             SvgNumber               maY;
  44             SvgNumber               maWidth;
  45             SvgNumber               maHeight;
  46             std::optional<SvgUnits>
  47                                     moPatternUnits;
  48             std::optional<SvgUnits>
  49                                     moPatternContentUnits;
  50             std::optional<basegfx::B2DHomMatrix>
  51                                     mpaPatternTransform;
  52
  53             /// link to another pattern used as style. If maXLink
  54             /// is set, the node can be fetched on demand by using
  55             // tryToFindLink (buffered)
  56             mutable bool mbResolvingLink; // protect against infinite link recursion
  57             OUString           maXLink;
  58             const SvgPatternNode*   mpXLink;
  59
  60             /// link on demand
  61             void tryToFindLink();
  62
  63         public:
  64             SvgPatternNode(
  65                 SvgDocument& rDocument,
  66                 SvgNode* pParent);
  67             virtual ~SvgPatternNode() override;
  68
  69             virtual const SvgStyleAttributes* getSvgStyleAttributes() const override;
  70             virtual void parseAttribute(SVGToken aSVGToken, const OUString& aContent) override;
  71
  72             /// global helpers
  73             void getValuesRelative(double& rfX, double& rfY, double& rfW, double& rfH, const basegfx::B2DRange& rGeoRange, SvgNode const & rUser) const;
  74
  75             /// get pattern primitives buffered, uses decomposeSvgNode internally
  76             const drawinglayer::primitive2d::Primitive2DContainer& getPatternPrimitives() const;
  77
  78             /// InfoProvider support for % values
  79             virtual basegfx::B2DRange getCurrentViewPort() const override;
  80
  81             /// viewBox content
  82             const basegfx::B2DRange* getViewBox() const;
  83             void setViewBox(const basegfx::B2DRange* pViewBox) { mpViewBox.reset(); if(pViewBox) mpViewBox.reset(new basegfx::B2DRange(*pViewBox)); }
  84
  85             /// SvgAspectRatio content
  86             const SvgAspectRatio& getSvgAspectRatio() const;
  87
  88             /// X content, set if found in current context
  89             const SvgNumber& getX() const;
  90
  91             /// Y content, set if found in current context
  92             const SvgNumber& getY() const;
  93
  94             /// Width content, set if found in current context
  95             const SvgNumber& getWidth() const;
  96
  97             /// Height content, set if found in current context
  98             const SvgNumber& getHeight() const;
  99
 100             /// PatternUnits content
 101             const SvgUnits* getPatternUnits() const;
 102             void setPatternUnits(const SvgUnits aPatternUnits) { moPatternUnits = aPatternUnits; }
 103
 104             /// PatternContentUnits content
 105             const SvgUnits* getPatternContentUnits() const;
 106             void setPatternContentUnits(const SvgUnits aPatternContentUnits) { moPatternContentUnits = aPatternContentUnits; }
 107
 108             /// PatternTransform content
 109             std::optional<basegfx::B2DHomMatrix> getPatternTransform() const;
 110             void setPatternTransform(const std::optional<basegfx::B2DHomMatrix>& pMatrix) { mpaPatternTransform = pMatrix; }
 111
 112         };
 113
 114 } // end of namespace svgio::svgreader
 115
 116 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */