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
23#include "core/svg/SVGTextElement.h"
24
25#include "SVGNames.h"
26#include "core/dom/NodeRenderingContext.h"
27#include "core/rendering/svg/RenderSVGResource.h"
28#include "core/rendering/svg/RenderSVGText.h"
29#include "core/svg/SVGElementInstance.h"
30
31namespace WebCore {
32
33inline SVGTextElement::SVGTextElement(const QualifiedName& tagName, Document* doc)
34    : SVGTextPositioningElement(tagName, doc)
35{
36    ASSERT(hasTagName(SVGNames::textTag));
37    ScriptWrappable::init(this);
38}
39
40PassRefPtr<SVGTextElement> SVGTextElement::create(const QualifiedName& tagName, Document* document)
41{
42    return adoptRef(new SVGTextElement(tagName, document));
43}
44
45// We override SVGGraphics::animatedLocalTransform() so that the transform-origin
46// is not taken into account.
47AffineTransform SVGTextElement::animatedLocalTransform() const
48{
49    AffineTransform matrix;
50    RenderStyle* style = renderer() ? renderer()->style() : 0;
51
52    // if CSS property was set, use that, otherwise fallback to attribute (if set)
53    if (style && style->hasTransform()) {
54        TransformationMatrix t;
55        // For now, the transform-origin is not taken into account
56        // Also, any percentage values will not be taken into account
57        style->applyTransform(t, IntSize(0, 0), RenderStyle::ExcludeTransformOrigin);
58        // Flatten any 3D transform
59        matrix = t.toAffineTransform();
60    } else {
61        transformCurrentValue().concatenate(matrix);
62    }
63
64    const AffineTransform* transform = const_cast<SVGTextElement*>(this)->supplementalTransform();
65    if (transform)
66        return *transform * matrix;
67    return matrix;
68}
69
70RenderObject* SVGTextElement::createRenderer(RenderStyle*)
71{
72    return new RenderSVGText(this);
73}
74
75bool SVGTextElement::childShouldCreateRenderer(const NodeRenderingContext& childContext) const
76{
77    if (childContext.node()->isTextNode()
78        || childContext.node()->hasTagName(SVGNames::aTag)
79#if ENABLE(SVG_FONTS)
80        || childContext.node()->hasTagName(SVGNames::altGlyphTag)
81#endif
82        || childContext.node()->hasTagName(SVGNames::textPathTag)
83        || childContext.node()->hasTagName(SVGNames::trefTag)
84        || childContext.node()->hasTagName(SVGNames::tspanTag))
85        return true;
86
87    return false;
88}
89
90}
91