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      1 /*
      2  * Copyright (C) 2007 Eric Seidel <eric (at) webkit.org>
      3  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann (at) 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 
     30 namespace WebCore {
     31 
     32 class SVGFontElement;
     33 class StyleRuleFontFace;
     34 
     35 class SVGFontFaceElement FINAL : public SVGElement {
     36 public:
     37     DECLARE_NODE_FACTORY(SVGFontFaceElement);
     38 
     39     unsigned unitsPerEm() const;
     40     int xHeight() const;
     41     float horizontalOriginX() const;
     42     float horizontalOriginY() const;
     43     float horizontalAdvanceX() const;
     44     float verticalOriginX() const;
     45     float verticalOriginY() const;
     46     float verticalAdvanceY() const;
     47     int ascent() const;
     48     int descent() const;
     49     String fontFamily() const;
     50 
     51     SVGFontElement* associatedFontElement() const;
     52     void rebuildFontFace();
     53 
     54     StyleRuleFontFace* fontFaceRule() const { return m_fontFaceRule.get(); }
     55     WeakPtr<SVGFontFaceElement> createWeakRef() { return m_weakFactory.createWeakPtr(); }
     56 
     57     virtual void trace(Visitor*) OVERRIDE;
     58 
     59 private:
     60     explicit SVGFontFaceElement(Document&);
     61 
     62     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     63 
     64     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0) OVERRIDE;
     65     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     66     virtual void removedFrom(ContainerNode*) OVERRIDE;
     67 
     68     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE { return false; }
     69 
     70     RefPtrWillBeMember<StyleRuleFontFace> m_fontFaceRule;
     71     RawPtrWillBeMember<SVGFontElement> m_fontElement;
     72     WeakPtrFactory<SVGFontFaceElement> m_weakFactory;
     73 };
     74 
     75 } // namespace WebCore
     76 
     77 #endif // ENABLE(SVG_FONTS)
     78 #endif
     79 
     80 // vim:ts=4:noet
     81