svgio/inc/svggradientnode.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
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   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
  13  *   with this work for additional information regarding copyright
  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 "svgtools.hxx"
  25 #include <drawinglayer/primitive2d/svggradientprimitive2d.hxx>
  26
  27 namespace svgio::svgreader
  28     {
  29         class SvgGradientNode final : public SvgNode
  30         {
  31         private:
  32             /// use styles
  33             SvgStyleAttributes          maSvgStyleAttributes;
  34
  35             /// linear gradient values
  36             SvgNumber                   maX1;
  37             SvgNumber                   maY1;
  38             SvgNumber                   maX2;
  39             SvgNumber                   maY2;
  40
  41             /// radial gradient values
  42             SvgNumber                   maCx;
  43             SvgNumber                   maCy;
  44             SvgNumber                   maR;
  45             SvgNumber                   maFx;
  46             SvgNumber                   maFy;
  47
  48             /// variable scan values, dependent of given XAttributeList
  49             SvgUnits                    maGradientUnits;
  50             drawinglayer::primitive2d::SpreadMethod   maSpreadMethod;
  51             std::optional<basegfx::B2DHomMatrix>    mpaGradientTransform;
  52
  53             /// link to another gradient 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 SvgGradientNode*      mpXLink;
  59
  60             /// link on demand
  61             void tryToFindLink();
  62
  63         public:
  64             SvgGradientNode(
  65                 SVGToken aType,
  66                 SvgDocument& rDocument,
  67                 SvgNode* pParent);
  68             virtual ~SvgGradientNode() override;
  69
  70             virtual const SvgStyleAttributes* getSvgStyleAttributes() const override;
  71             virtual void parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent) override;
  72
  73             /// collect gradient stop entries
  74             void collectGradientEntries(drawinglayer::primitive2d::SvgGradientEntryVector& aVector) const;
  75
  76             /// x1 content
  77             SvgNumber getX1() const;
  78
  79             /// y1 content
  80             SvgNumber getY1() const;
  81
  82             /// x2 content
  83             SvgNumber getX2() const;
  84
  85             /// y2 content
  86             SvgNumber getY2() const;
  87
  88             /// Cx content
  89             SvgNumber getCx() const;
  90
  91             /// Cy content
  92             SvgNumber getCy() const;
  93
  94             /// R content
  95             SvgNumber getR() const;
  96
  97             /// Fx content
  98             const SvgNumber* getFx() const;
  99
 100             /// Fy content
 101             const SvgNumber* getFy() const;
 102
 103             /// gradientUnits content
 104             SvgUnits getGradientUnits() const { return maGradientUnits; }
 105             void setGradientUnits(const SvgUnits aGradientUnits) { maGradientUnits = aGradientUnits; }
 106
 107             /// SpreadMethod content
 108             drawinglayer::primitive2d::SpreadMethod getSpreadMethod() const { return maSpreadMethod; }
 109             void setSpreadMethod(const drawinglayer::primitive2d::SpreadMethod aSpreadMethod) { maSpreadMethod = aSpreadMethod; }
 110
 111             /// transform content, set if found in current context
 112             std::optional<basegfx::B2DHomMatrix> getGradientTransform() const;
 113             void setGradientTransform(const std::optional<basegfx::B2DHomMatrix>& pMatrix) { mpaGradientTransform = pMatrix; }
 114         };
 115
 116 } // end of namespace svgio::svgreader
 117
 118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */