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      1 /*
      2  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis (at) 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 #ifndef SVGMarkerElement_h
     22 #define SVGMarkerElement_h
     23 
     24 #include "bindings/core/v8/ExceptionState.h"
     25 #include "core/svg/SVGAnimatedAngle.h"
     26 #include "core/svg/SVGAnimatedBoolean.h"
     27 #include "core/svg/SVGAnimatedEnumeration.h"
     28 #include "core/svg/SVGAnimatedLength.h"
     29 #include "core/svg/SVGElement.h"
     30 #include "core/svg/SVGFitToViewBox.h"
     31 
     32 namespace blink {
     33 
     34 enum SVGMarkerUnitsType {
     35     SVGMarkerUnitsUnknown = 0,
     36     SVGMarkerUnitsUserSpaceOnUse,
     37     SVGMarkerUnitsStrokeWidth
     38 };
     39 template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGMarkerUnitsType>();
     40 
     41 class SVGMarkerElement FINAL : public SVGElement,
     42                                public SVGFitToViewBox {
     43     DEFINE_WRAPPERTYPEINFO();
     44 public:
     45     // Forward declare enumerations in the W3C naming scheme, for IDL generation.
     46     enum {
     47         SVG_MARKERUNITS_UNKNOWN = SVGMarkerUnitsUnknown,
     48         SVG_MARKERUNITS_USERSPACEONUSE = SVGMarkerUnitsUserSpaceOnUse,
     49         SVG_MARKERUNITS_STROKEWIDTH = SVGMarkerUnitsStrokeWidth
     50     };
     51 
     52     enum {
     53         SVG_MARKER_ORIENT_UNKNOWN = SVGMarkerOrientUnknown,
     54         SVG_MARKER_ORIENT_AUTO = SVGMarkerOrientAuto,
     55         SVG_MARKER_ORIENT_ANGLE = SVGMarkerOrientAngle
     56     };
     57 
     58     DECLARE_NODE_FACTORY(SVGMarkerElement);
     59 
     60     AffineTransform viewBoxToViewTransform(float viewWidth, float viewHeight) const;
     61 
     62     void setOrientToAuto();
     63     void setOrientToAngle(PassRefPtr<SVGAngleTearOff>);
     64 
     65     SVGAnimatedLength* refX() const { return m_refX.get(); }
     66     SVGAnimatedLength* refY() const { return m_refY.get(); }
     67     SVGAnimatedLength* markerWidth() const { return m_markerWidth.get(); }
     68     SVGAnimatedLength* markerHeight() const { return m_markerHeight.get(); }
     69     SVGAnimatedEnumeration<SVGMarkerUnitsType>* markerUnits() { return m_markerUnits.get(); }
     70     SVGAnimatedAngle* orientAngle() { return m_orientAngle.get(); }
     71     SVGAnimatedEnumeration<SVGMarkerOrientType>* orientType() { return m_orientAngle->orientType(); }
     72 
     73 private:
     74     explicit SVGMarkerElement(Document&);
     75 
     76     virtual bool needsPendingResourceHandling() const OVERRIDE { return false; }
     77 
     78     bool isSupportedAttribute(const QualifiedName&);
     79     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     80     virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
     81     virtual void childrenChanged(const ChildrenChange&) OVERRIDE;
     82 
     83     virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
     84     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE { return true; }
     85 
     86     virtual bool selfHasRelativeLengths() const OVERRIDE;
     87 
     88     RefPtr<SVGAnimatedLength> m_refX;
     89     RefPtr<SVGAnimatedLength> m_refY;
     90     RefPtr<SVGAnimatedLength> m_markerWidth;
     91     RefPtr<SVGAnimatedLength> m_markerHeight;
     92     RefPtr<SVGAnimatedAngle> m_orientAngle;
     93     RefPtr<SVGAnimatedEnumeration<SVGMarkerUnitsType> > m_markerUnits;
     94 };
     95 
     96 } // namespace blink
     97 
     98 #endif // SVGMarkerElement_h
     99