1/*
2 * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006, 2008 Rob Buis <buis@kde.org>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#include "config.h"
22#include "SVGTextElement.h"
23
24#include "RenderSVGResource.h"
25#include "RenderSVGText.h"
26#include "SVGNames.h"
27#include "SVGRenderStyle.h"
28#include "SVGTSpanElement.h"
29#include <wtf/IsoMallocInlines.h>
30
31namespace WebCore {
32
33WTF_MAKE_ISO_ALLOCATED_IMPL(SVGTextElement);
34
35inline SVGTextElement::SVGTextElement(const QualifiedName& tagName, Document& document)
36 : SVGTextPositioningElement(tagName, document)
37{
38 ASSERT(hasTagName(SVGNames::textTag));
39}
40
41Ref<SVGTextElement> SVGTextElement::create(const QualifiedName& tagName, Document& document)
42{
43 return adoptRef(*new SVGTextElement(tagName, document));
44}
45
46// We override SVGGraphics::animatedLocalTransform() so that the transform-origin
47// is not taken into account.
48AffineTransform SVGTextElement::animatedLocalTransform() const
49{
50 AffineTransform matrix;
51 auto* style = renderer() ? &renderer()->style() : nullptr;
52
53 // if CSS property was set, use that, otherwise fallback to attribute (if set)
54 if (style && style->hasTransform()) {
55 TransformationMatrix t;
56 // For now, the transform-origin is not taken into account
57 // Also, any percentage values will not be taken into account
58 style->applyTransform(t, FloatRect(0, 0, 0, 0), RenderStyle::ExcludeTransformOrigin);
59 // Flatten any 3D transform
60 matrix = t.toAffineTransform();
61 } else
62 matrix = transform().concatenate();
63
64 const AffineTransform* transform = const_cast<SVGTextElement*>(this)->supplementalTransform();
65 if (transform)
66 return *transform * matrix;
67 return matrix;
68}
69
70RenderPtr<RenderElement> SVGTextElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
71{
72 return createRenderer<RenderSVGText>(*this, WTFMove(style));
73}
74
75bool SVGTextElement::childShouldCreateRenderer(const Node& child) const
76{
77 if (child.isTextNode()
78 || child.hasTagName(SVGNames::aTag)
79#if ENABLE(SVG_FONTS)
80 || child.hasTagName(SVGNames::altGlyphTag)
81#endif
82 || child.hasTagName(SVGNames::textPathTag)
83 || child.hasTagName(SVGNames::trefTag)
84 || child.hasTagName(SVGNames::tspanTag))
85 return true;
86
87 return false;
88}
89
90}
91