1 /*

     2     Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>

     3                   2004, 2005, 2007 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 #ifndef SVGStyledElement_h

    22 #define SVGStyledElement_h

    23 

    24 #if ENABLE(SVG)

    25 #include "HTMLNames.h"

    26 #include "SVGElement.h"

    27 #include "SVGLocatable.h"

    28 #include "SVGStylable.h"

    29 #include <wtf/HashSet.h>

    30 

    31 namespace WebCore {

    32 

    33     void mapAttributeToCSSProperty(HashMap<AtomicStringImpl*, int>* propertyNameToIdMap, const QualifiedName& attrName);

    34 

    35     class SVGStyledElement : public SVGElement,

    36                              public SVGStylable {

    37     public:

    38         SVGStyledElement(const QualifiedName&, Document*);

    39         virtual ~SVGStyledElement();

    40 

    41         virtual String title() const;

    42 

    43         bool hasRelativeLengths() const { return !m_elementsWithRelativeLengths.isEmpty(); }

    44 

    45         virtual bool isStyled() const { return true; }

    46         virtual bool supportsMarkers() const { return false; }

    47 

    48         virtual PassRefPtr<CSSValue> getPresentationAttribute(const String& name);

    49         virtual CSSStyleDeclaration* style() { return StyledElement::style(); }

    50 

    51         bool isKnownAttribute(const QualifiedName&);

    52 

    53         virtual bool rendererIsNeeded(RenderStyle*);

    54 

    55         virtual bool mapToEntry(const QualifiedName&, MappedAttributeEntry&) const;

    56         virtual void parseMappedAttribute(Attribute*);

    57         virtual void svgAttributeChanged(const QualifiedName&);

    58         virtual void synchronizeProperty(const QualifiedName&);

    59 

    60         virtual void insertedIntoDocument();

    61         virtual void removedFromDocument();

    62         virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);

    63 

    64         // Centralized place to force a manual style resolution. Hacky but needed for now.

    65         PassRefPtr<RenderStyle> resolveStyle(RenderStyle* parentStyle);

    66 

    67         void invalidateResourceClients();

    68 

    69         bool instanceUpdatesBlocked() const;

    70         void setInstanceUpdatesBlocked(bool);

    71 

    72         virtual AffineTransform localCoordinateSpaceTransform(SVGLocatable::CTMScope) const;

    73 

    74     protected: 

    75         static int cssPropertyIdForSVGAttributeName(const QualifiedName&);

    76         void updateRelativeLengthsInformation() { updateRelativeLengthsInformation(selfHasRelativeLengths(), this); }

    77         void updateRelativeLengthsInformation(bool hasRelativeLengths, SVGStyledElement*);

    78 

    79         virtual bool selfHasRelativeLengths() const { return false; }

    80 

    81     private:

    82         HashSet<SVGStyledElement*> m_elementsWithRelativeLengths;

    83         DECLARE_ANIMATED_PROPERTY(SVGStyledElement, HTMLNames::classAttr, String, ClassName, className)

    84     };

    85 

    86 } // namespace WebCore

    87 

    88 #endif // ENABLE(SVG)

    89 #endif // SVGStyledElement