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      1 /*
      2  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) 2006 Samuel Weinig <sam.weinig (at) gmial.com>
      5  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  */
     22 
     23 #ifndef SVGPaint_h
     24 #define SVGPaint_h
     25 
     26 #include "core/css/CSSValue.h"
     27 #include "core/css/StyleColor.h"
     28 #include "platform/graphics/Color.h"
     29 #include "wtf/text/WTFString.h"
     30 
     31 namespace WebCore {
     32 
     33 class SVGPaint : public CSSValue {
     34 public:
     35     enum SVGPaintType {
     36         SVG_PAINTTYPE_UNKNOWN,
     37         SVG_PAINTTYPE_RGBCOLOR,
     38         SVG_PAINTTYPE_RGBCOLOR_ICCCOLOR,
     39         SVG_PAINTTYPE_NONE,
     40         SVG_PAINTTYPE_CURRENTCOLOR,
     41         SVG_PAINTTYPE_URI_NONE,
     42         SVG_PAINTTYPE_URI_CURRENTCOLOR,
     43         SVG_PAINTTYPE_URI_RGBCOLOR,
     44         SVG_PAINTTYPE_URI_RGBCOLOR_ICCCOLOR,
     45         SVG_PAINTTYPE_URI
     46     };
     47 
     48     static PassRefPtrWillBeRawPtr<SVGPaint> createUnknown()
     49     {
     50         return adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_UNKNOWN));
     51     }
     52 
     53     static PassRefPtrWillBeRawPtr<SVGPaint> createNone()
     54     {
     55         return adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_NONE));
     56     }
     57 
     58     static PassRefPtrWillBeRawPtr<SVGPaint> createCurrentColor()
     59     {
     60         return adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_CURRENTCOLOR));
     61     }
     62 
     63     static PassRefPtrWillBeRawPtr<SVGPaint> createColor(const Color& color)
     64     {
     65         RefPtrWillBeRawPtr<SVGPaint> paint = adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_RGBCOLOR));
     66         paint->m_color = color;
     67         return paint.release();
     68     }
     69 
     70     static PassRefPtrWillBeRawPtr<SVGPaint> createURI(const String& uri)
     71     {
     72         RefPtrWillBeRawPtr<SVGPaint> paint = adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_URI, uri));
     73         return paint.release();
     74     }
     75 
     76     static PassRefPtrWillBeRawPtr<SVGPaint> createURIAndColor(const String& uri, const Color& color)
     77     {
     78         RefPtrWillBeRawPtr<SVGPaint> paint = adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_URI_RGBCOLOR, uri));
     79         paint->m_color = color;
     80         return paint.release();
     81     }
     82 
     83     static PassRefPtrWillBeRawPtr<SVGPaint> createURIAndNone(const String& uri)
     84     {
     85         RefPtrWillBeRawPtr<SVGPaint> paint = adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_URI_NONE, uri));
     86         return paint.release();
     87     }
     88 
     89     static PassRefPtrWillBeRawPtr<SVGPaint> createURIAndCurrentColor(const String& uri)
     90     {
     91         RefPtrWillBeRawPtr<SVGPaint> paint = adoptRefWillBeNoop(new SVGPaint(SVG_PAINTTYPE_URI_CURRENTCOLOR, uri));
     92         return paint.release();
     93     }
     94 
     95     const SVGPaintType& paintType() const { return m_paintType; }
     96     String uri() const { return m_uri; }
     97 
     98     String customCSSText() const;
     99 
    100     PassRefPtrWillBeRawPtr<SVGPaint> cloneForCSSOM() const;
    101 
    102     bool equals(const SVGPaint&) const;
    103 
    104     void traceAfterDispatch(Visitor* visitor) { CSSValue::traceAfterDispatch(visitor); }
    105 
    106     Color color() const { return m_color; }
    107     void setColor(const Color& color) { m_color = color; m_paintType = SVG_PAINTTYPE_RGBCOLOR; }
    108 
    109     static StyleColor colorFromRGBColorString(const String&);
    110 
    111 private:
    112     friend class CSSComputedStyleDeclaration;
    113 
    114     static PassRefPtrWillBeRawPtr<SVGPaint> create(const SVGPaintType& type, const String& uri, const Color& color)
    115     {
    116         RefPtrWillBeRawPtr<SVGPaint> paint = adoptRefWillBeNoop(new SVGPaint(type, uri));
    117         paint->m_color = color;
    118         return paint.release();
    119     }
    120 
    121 private:
    122     SVGPaint(const SVGPaintType&, const String& uri = String());
    123     SVGPaint(const SVGPaint& cloneFrom);
    124 
    125     SVGPaintType m_paintType;
    126     Color m_color;
    127     String m_uri;
    128 };
    129 
    130 DEFINE_CSS_VALUE_TYPE_CASTS(SVGPaint, isSVGPaint());
    131 
    132 } // namespace WebCore
    133 
    134 #endif // SVGPaint_h
    135