1/*
2 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#include "config.h"
21#include "RenderSVGTextPath.h"
22
23#include "FloatQuad.h"
24#include "RenderBlock.h"
25#include "SVGInlineTextBox.h"
26#include "SVGNames.h"
27#include "SVGPathData.h"
28#include "SVGPathElement.h"
29#include "SVGRootInlineBox.h"
30#include "SVGTextPathElement.h"
31#include <wtf/IsoMallocInlines.h>
32
33namespace WebCore {
34
35WTF_MAKE_ISO_ALLOCATED_IMPL(RenderSVGTextPath);
36
37RenderSVGTextPath::RenderSVGTextPath(SVGTextPathElement& element, RenderStyle&& style)
38 : RenderSVGInline(element, WTFMove(style))
39{
40}
41
42SVGTextPathElement& RenderSVGTextPath::textPathElement() const
43{
44 return downcast<SVGTextPathElement>(RenderSVGInline::graphicsElement());
45}
46
47Path RenderSVGTextPath::layoutPath() const
48{
49 auto target = SVGURIReference::targetElementFromIRIString(textPathElement().href(), textPathElement().treeScope());
50 if (!is<SVGPathElement>(target.element))
51 return Path();
52
53 SVGPathElement& pathElement = downcast<SVGPathElement>(*target.element);
54
55 Path path = pathFromGraphicsElement(&pathElement);
56
57 // Spec: The transform attribute on the referenced 'path' element represents a
58 // supplemental transformation relative to the current user coordinate system for
59 // the current 'text' element, including any adjustments to the current user coordinate
60 // system due to a possible transform attribute on the current 'text' element.
61 // http://www.w3.org/TR/SVG/text.html#TextPathElement
62 path.transform(pathElement.animatedLocalTransform());
63 return path;
64}
65
66float RenderSVGTextPath::startOffset() const
67{
68 return textPathElement().startOffset().valueAsPercentage();
69}
70
71bool RenderSVGTextPath::exactAlignment() const
72{
73 return textPathElement().spacing() == SVGTextPathSpacingExact;
74}
75
76bool RenderSVGTextPath::stretchMethod() const
77{
78 return textPathElement().method() == SVGTextPathMethodStretch;
79}
80
81}
82