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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /svgio/inc/svgnode.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'svgio/inc/svgnode.hxx')
-rw-r--r--svgio/inc/svgnode.hxx194
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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 .
+ */
+
+#pragma once
+
+#include "SvgNumber.hxx"
+#include "svgtoken.hxx"
+#include <com/sun/star/xml/sax/XAttributeList.hpp>
+#include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
+#include <memory>
+#include <string_view>
+#include <vector>
+#include <optional>
+
+// predefines
+namespace svgio::svgreader
+{
+ class SvgNode;
+ class SvgDocument;
+ class SvgStyleAttributes;
+}
+
+
+
+namespace svgio::svgreader
+ {
+ enum class XmlSpace
+ {
+ NotSet,
+ Default,
+ Preserve
+ };
+
+ // display property (see SVG 1.1. 11.5), not inheritable
+ enum class Display // #i121656#
+ {
+ Inline, // the default
+ Block,
+ ListItem,
+ RunIn,
+ Compact,
+ Marker,
+ Table,
+ InlineTable,
+ TableRowGroup,
+ TableHeaderGroup,
+ TableFooterGroup,
+ TableRow,
+ TableColumnGroup,
+ TableColumn,
+ TableCell,
+ TableCaption,
+ None,
+ Inherit
+ };
+
+ // helper to convert a string associated with a token of type SVGTokenDisplay
+ // to the enum Display. Empty strings return the default 'Display_inline' with
+ // which members should be initialized
+ Display getDisplayFromContent(std::u16string_view aContent);
+
+ class Visitor;
+
+ class SvgNode : public InfoProvider
+ {
+ private:
+ /// basic data, Type, document we belong to and parent (if not root)
+ SVGToken maType;
+ SvgDocument& mrDocument;
+ const SvgNode* mpParent;
+ const SvgNode* mpAlternativeParent;
+
+ /// sub hierarchy
+ std::vector< std::unique_ptr<SvgNode> > maChildren;
+
+ /// Id svan value
+ std::optional<OUString> mpId;
+
+ /// Class svan value
+ std::optional<OUString> mpClass;
+
+ /// XmlSpace value
+ XmlSpace maXmlSpace;
+
+ /// Display value #i121656#
+ Display maDisplay;
+
+ // CSS style vector chain, used in decompose phase and built up once per node.
+ // It contains the StyleHierarchy for the local node. Independent from the
+ // node hierarchy itself which also needs to be used in style entry solving
+ ::std::vector< const SvgStyleAttributes* > maCssStyleVector;
+
+ /// possible local CssStyle, e.g. style="fill:red; stroke:red;"
+ std::unique_ptr<SvgStyleAttributes> mpLocalCssStyle;
+
+ mutable bool mbDecomposing;
+
+ // flag if maCssStyleVector is already computed (done only once)
+ bool mbCssStyleVectorBuilt : 1;
+
+ protected:
+ /// helper to evtl. link to css style
+ const SvgStyleAttributes* checkForCssStyle(const OUString& rClassStr, const SvgStyleAttributes& rOriginal) const;
+
+ /// helper for filling the CssStyle vector once dependent on mbCssStyleVectorBuilt
+ void fillCssStyleVector(const OUString& rClassStr, const SvgStyleAttributes& rOriginal);
+ void fillCssStyleVectorUsingHierarchyAndSelectors(
+ const OUString& rClassStr,
+ const SvgNode& rCurrent,
+ const OUString& aConcatenated);
+
+ public:
+ SvgNode(
+ SVGToken aType,
+ SvgDocument& rDocument,
+ SvgNode* pParent);
+ virtual ~SvgNode() override;
+ SvgNode(const SvgNode&) = delete;
+ SvgNode& operator=(const SvgNode&) = delete;
+
+ void accept(Visitor& rVisitor);
+
+ /// scan helper to read and interpret a local CssStyle to mpLocalCssStyle
+ void readLocalCssStyle(const OUString& aContent);
+
+ /// style helpers
+ void parseAttributes(const css::uno::Reference< css::xml::sax::XAttributeList >& xAttribs);
+ virtual const SvgStyleAttributes* getSvgStyleAttributes() const;
+ virtual void parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent);
+ virtual void decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool bReferenced) const;
+
+ /// #i125258# tell if this node is allowed to have a parent style (e.g. defs do not)
+ virtual bool supportsParentStyle() const;
+
+ /// basic data read access
+ SVGToken getType() const { return maType; }
+ const SvgDocument& getDocument() const { return mrDocument; }
+ const SvgNode* getParent() const { if(mpAlternativeParent) return mpAlternativeParent; return mpParent; }
+ const std::vector< std::unique_ptr<SvgNode> > & getChildren() const { return maChildren; }
+
+ /// InfoProvider support for %, em and ex values
+ virtual basegfx::B2DRange getCurrentViewPort() const override;
+ virtual double getCurrentFontSizeInherited() const override;
+ virtual double getCurrentXHeightInherited() const override;
+
+ double getCurrentFontSize() const;
+ double getCurrentXHeight() const;
+
+ /// Id access
+ std::optional<OUString> const & getId() const { return mpId; }
+ void setId(OUString const &);
+
+ /// Class access
+ std::optional<OUString> const & getClass() const { return mpClass; }
+ void setClass(OUString const &);
+
+ /// XmlSpace access
+ XmlSpace getXmlSpace() const;
+ void setXmlSpace(XmlSpace eXmlSpace) { maXmlSpace = eXmlSpace; }
+
+ /// Display access #i121656#
+ Display getDisplay() const { return maDisplay; }
+ void setDisplay(Display eDisplay) { maDisplay = eDisplay; }
+
+ /// alternative parent
+ void setAlternativeParent(const SvgNode* pAlternativeParent = nullptr) { mpAlternativeParent = pAlternativeParent; }
+ };
+
+ class Visitor
+ {
+ public:
+ virtual ~Visitor() = default;
+ virtual void visit(SvgNode const & pNode) = 0;
+ };
+
+} // end of namespace svgio::svgreader
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */