1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* -*- 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 SvgStyleAttributes& rOriginal) const;
/// helper for filling the CssStyle vector once dependent on mbCssStyleVectorBuilt
void fillCssStyleVector(const SvgStyleAttributes& rOriginal);
void addCssStyle(
const SvgDocument& rDocument,
const OUString& aConcatenated);
void fillCssStyleVectorUsingHierarchyAndSelectors(
const SvgNode& rCurrent,
std::u16string_view aConcatenated);
void fillCssStyleVectorUsingParent(
const SvgNode& rCurrent);
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(std::u16string_view aContent);
/// style helpers
void parseAttributes(const css::uno::Reference< css::xml::sax::XAttributeList >& xAttribs);
virtual const SvgStyleAttributes* getSvgStyleAttributes() const;
virtual void parseAttribute(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; }
/// Check if there is a local css style
bool hasLocalCssStyle() { return static_cast<bool>(mpLocalCssStyle); }
};
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: */
|
