1/*
2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
4 * Copyright (C) 2008 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB.  If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#ifndef SVGFontFaceElement_h
23#define SVGFontFaceElement_h
24
25#if ENABLE(SVG_FONTS)
26#include "core/SVGNames.h"
27#include "core/svg/SVGElement.h"
28#include "wtf/WeakPtr.h"
29
30namespace blink {
31
32class SVGFontElement;
33class StyleRuleFontFace;
34
35class SVGFontFaceElement FINAL : public SVGElement {
36    DEFINE_WRAPPERTYPEINFO();
37public:
38    DECLARE_NODE_FACTORY(SVGFontFaceElement);
39
40    unsigned unitsPerEm() const;
41    int xHeight() const;
42    float horizontalOriginX() const;
43    float horizontalOriginY() const;
44    float horizontalAdvanceX() const;
45    float verticalOriginX() const;
46    float verticalOriginY() const;
47    float verticalAdvanceY() const;
48    int ascent() const;
49    int descent() const;
50    String fontFamily() const;
51
52    SVGFontElement* associatedFontElement() const;
53    void rebuildFontFace();
54
55    StyleRuleFontFace* fontFaceRule() const { return m_fontFaceRule.get(); }
56    WeakPtr<SVGFontFaceElement> createWeakRef() { return m_weakFactory.createWeakPtr(); }
57
58    virtual void trace(Visitor*) OVERRIDE;
59
60private:
61    explicit SVGFontFaceElement(Document&);
62
63    virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
64
65    virtual void childrenChanged(const ChildrenChange&) OVERRIDE;
66    virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
67    virtual void removedFrom(ContainerNode*) OVERRIDE;
68
69    virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE { return false; }
70
71    RefPtrWillBeMember<StyleRuleFontFace> m_fontFaceRule;
72    RawPtrWillBeMember<SVGFontElement> m_fontElement;
73    WeakPtrFactory<SVGFontFaceElement> m_weakFactory;
74};
75
76} // namespace blink
77
78#endif // ENABLE(SVG_FONTS)
79#endif // SVGFontFaceElement_h
80