WebCore/rendering/style/SVGRenderStyle.h

   1 /*
   2     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005 Rob Buis <buis@kde.org>
   4     Copyright (C) 2005, 2006 Apple Computer, Inc.
   5
   6      This file is part of the KDE project
   7
   8     This library is free software; you can redistribute it and/or
   9     modify it under the terms of the GNU Library General Public
  10     License as published by the Free Software Foundation; either
  11     version 2 of the License, or (at your option) any later version.
  12
  13     This library is distributed in the hope that it will be useful,
  14     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16     Library General Public License for more details.
  17
  18     You should have received a copy of the GNU Library General Public License
  19     along with this library; see the file COPYING.LIB.  If not, write to
  20     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21     Boston, MA 02110-1301, USA.
  22 */
  23
  24 #ifndef SVGRenderStyle_h
  25 #define SVGRenderStyle_h
  26
  27 #if ENABLE(SVG)
  28 #include "CSSValueList.h"
  29 #include "DataRef.h"
  30 #include "GraphicsTypes.h"
  31 #include "SVGPaint.h"
  32 #include "SVGRenderStyleDefs.h"
  33
  34 #include <wtf/Platform.h>
  35
  36 namespace WebCore {
  37
  38     class RenderObject;
  39     class RenderStyle;
  40
  41     class SVGRenderStyle : public RefCounted<SVGRenderStyle> {
  42     public:
  43         static PassRefPtr<SVGRenderStyle> create() { return adoptRef(new SVGRenderStyle); }
  44         PassRefPtr<SVGRenderStyle> copy() const { return adoptRef(new SVGRenderStyle(*this));}
  45         ~SVGRenderStyle();
  46
  47         bool inheritedNotEqual(const SVGRenderStyle*) const;
  48         void inheritFrom(const SVGRenderStyle*);
  49
  50         bool operator==(const SVGRenderStyle&) const;
  51         bool operator!=(const SVGRenderStyle& o) const { return !(*this == o); }
  52
  53         // SVG CSS Properties
  54         SVG_RS_DEFINE_ATTRIBUTE(EAlignmentBaseline, AlignmentBaseline, alignmentBaseline, AB_AUTO)
  55         SVG_RS_DEFINE_ATTRIBUTE(EDominantBaseline, DominantBaseline, dominantBaseline, DB_AUTO)
  56         SVG_RS_DEFINE_ATTRIBUTE(EBaselineShift, BaselineShift, baselineShift, BS_BASELINE)
  57
  58         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(LineCap, CapStyle, capStyle, ButtCap)
  59         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(WindRule, ClipRule, clipRule, RULE_NONZERO)
  60         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EColorInterpolation, ColorInterpolation, colorInterpolation, CI_SRGB)
  61         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EColorInterpolation, ColorInterpolationFilters, colorInterpolationFilters, CI_LINEARRGB)
  62         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EColorRendering, ColorRendering, colorRendering, CR_AUTO)
  63         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(WindRule, FillRule, fillRule, RULE_NONZERO)
  64         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EImageRendering, ImageRendering, imageRendering, IR_AUTO)
  65         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(LineJoin, JoinStyle, joinStyle, MiterJoin)
  66         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EPointerEvents, PointerEvents, pointerEvents, PE_VISIBLE_PAINTED)
  67         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EShapeRendering, ShapeRendering, shapeRendering, SR_AUTO)
  68         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(ETextAnchor, TextAnchor, textAnchor, TA_START)
  69         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(ETextRendering, TextRendering, textRendering, TR_AUTO)
  70         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EWritingMode, WritingMode, writingMode, WM_LRTB)
  71         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EGlyphOrientation, GlyphOrientationHorizontal, glyphOrientationHorizontal, GO_0DEG)
  72         SVG_RS_DEFINE_ATTRIBUTE_INHERITED(EGlyphOrientation, GlyphOrientationVertical, glyphOrientationVertical, GO_AUTO)
  73
  74         // SVG CSS Properties (using DataRef's)
  75         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(float, fill, opacity, FillOpacity, fillOpacity, 1.0f)
  76         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL_REFCOUNTED(SVGPaint, fill, paint, FillPaint, fillPaint, SVGPaint::defaultFill())
  77
  78         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(float, stroke, opacity, StrokeOpacity, strokeOpacity, 1.0f)
  79         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL_REFCOUNTED(SVGPaint, stroke, paint, StrokePaint, strokePaint, SVGPaint::defaultStroke())
  80         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL_REFCOUNTED(CSSValueList, stroke, dashArray, StrokeDashArray, strokeDashArray, 0)
  81         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(float, stroke, miterLimit, StrokeMiterLimit, strokeMiterLimit, 4.0f)
  82
  83         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL_REFCOUNTED(CSSValue, stroke, width, StrokeWidth, strokeWidth, 0)
  84         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL_REFCOUNTED(CSSValue, stroke, dashOffset, StrokeDashOffset, strokeDashOffset, 0);
  85
  86         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL_REFCOUNTED(CSSValue, text, kerning, Kerning, kerning, 0)
  87
  88         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(float, stops, opacity, StopOpacity, stopOpacity, 1.0f)
  89         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(Color, stops, color, StopColor, stopColor, Color(0, 0, 0))
  90
  91         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(String, clip, clipPath, ClipPath, clipPath, String())
  92         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(String, mask, maskElement, MaskElement, maskElement, String())
  93         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(String, markers, startMarker, StartMarker, startMarker, String())
  94         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(String, markers, midMarker, MidMarker, midMarker, String())
  95         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(String, markers, endMarker, EndMarker, endMarker, String())
  96
  97         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(String, misc, filter, Filter, filter, String())
  98         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(float, misc, floodOpacity, FloodOpacity, floodOpacity, 1.0f)
  99         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(Color, misc, floodColor, FloodColor, floodColor, Color(0, 0, 0))
 100         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL(Color, misc, lightingColor, LightingColor, lightingColor, Color(255, 255, 255))
 101         SVG_RS_DEFINE_ATTRIBUTE_DATAREF_WITH_INITIAL_REFCOUNTED(CSSValue, misc, baselineShiftValue, BaselineShiftValue, baselineShiftValue, 0)
 102
 103         // convenience
 104         bool hasStroke() const { return (strokePaint()->paintType() != SVGPaint::SVG_PAINTTYPE_NONE); }
 105         bool hasFill() const { return (fillPaint()->paintType() != SVGPaint::SVG_PAINTTYPE_NONE); }
 106
 107         static float cssPrimitiveToLength(const RenderObject*, CSSValue*, float defaultValue = 0.0f);
 108
 109     protected:
 110         // inherit
 111         struct InheritedFlags {
 112             bool operator==(const InheritedFlags& other) const
 113             {
 114                 return (_colorRendering == other._colorRendering) &&
 115                        (_imageRendering == other._imageRendering) &&
 116                        (_shapeRendering == other._shapeRendering) &&
 117                        (_textRendering == other._textRendering) &&
 118                        (_clipRule == other._clipRule) &&
 119                        (_fillRule == other._fillRule) &&
 120                        (_capStyle == other._capStyle) &&
 121                        (_joinStyle == other._joinStyle) &&
 122                        (_textAnchor == other._textAnchor) &&
 123                        (_colorInterpolation == other._colorInterpolation) &&
 124                        (_colorInterpolationFilters == other._colorInterpolationFilters) &&
 125                        (_pointerEvents == other._pointerEvents) &&
 126                        (_writingMode == other._writingMode) &&
 127                        (_glyphOrientationHorizontal == other._glyphOrientationHorizontal) &&
 128                        (_glyphOrientationVertical == other._glyphOrientationVertical);
 129             }
 130
 131             bool operator!=(const InheritedFlags& other) const
 132             {
 133                 return !(*this == other);
 134             }
 135
 136             unsigned _colorRendering : 2; // EColorRendering
 137             unsigned _imageRendering : 2; // EImageRendering
 138             unsigned _shapeRendering : 2; // EShapeRendering
 139             unsigned _textRendering : 2; // ETextRendering
 140             unsigned _clipRule : 1; // WindRule
 141             unsigned _fillRule : 1; // WindRule
 142             unsigned _capStyle : 2; // LineCap
 143             unsigned _joinStyle : 2; // LineJoin
 144             unsigned _textAnchor : 2; // ETextAnchor
 145             unsigned _colorInterpolation : 2; // EColorInterpolation
 146             unsigned _colorInterpolationFilters : 2; // EColorInterpolation
 147             unsigned _pointerEvents : 4; // EPointerEvents
 148             unsigned _writingMode : 3; // EWritingMode
 149             unsigned _glyphOrientationHorizontal : 3; // EGlyphOrientation
 150             unsigned _glyphOrientationVertical : 3; // EGlyphOrientation
 151         } svg_inherited_flags;
 152
 153         // don't inherit
 154         struct NonInheritedFlags {
 155             // 32 bit non-inherited, don't add to the struct, or the operator will break.
 156             bool operator==(const NonInheritedFlags &other) const { return _niflags == other._niflags; }
 157             bool operator!=(const NonInheritedFlags &other) const { return _niflags != other._niflags; }
 158
 159             union {
 160                 struct {
 161                     unsigned _alignmentBaseline : 4; // EAlignmentBaseline
 162                     unsigned _dominantBaseline : 4; // EDominantBaseline
 163                     unsigned _baselineShift : 2; // EBaselineShift
 164                     // 22 bits unused
 165                 } f;
 166                 uint32_t _niflags;
 167             };
 168         } svg_noninherited_flags;
 169
 170         // inherited attributes
 171         DataRef<StyleFillData> fill;
 172         DataRef<StyleStrokeData> stroke;
 173         DataRef<StyleMarkerData> markers;
 174         DataRef<StyleTextData> text;
 175
 176         // non-inherited attributes
 177         DataRef<StyleStopData> stops;
 178         DataRef<StyleClipData> clip;
 179         DataRef<StyleMaskData> mask;
 180         DataRef<StyleMiscData> misc;
 181
 182     private:
 183         enum CreateDefaultType { CreateDefault };
 184
 185         SVGRenderStyle();
 186         SVGRenderStyle(const SVGRenderStyle&);
 187         SVGRenderStyle(CreateDefaultType); // Used to create the default style.
 188
 189         void setBitDefaults()
 190         {
 191             svg_inherited_flags._clipRule = initialClipRule();
 192             svg_inherited_flags._colorRendering = initialColorRendering();
 193             svg_inherited_flags._fillRule = initialFillRule();
 194             svg_inherited_flags._imageRendering = initialImageRendering();
 195             svg_inherited_flags._shapeRendering = initialShapeRendering();
 196             svg_inherited_flags._textRendering = initialTextRendering();
 197             svg_inherited_flags._textAnchor = initialTextAnchor();
 198             svg_inherited_flags._capStyle = initialCapStyle();
 199             svg_inherited_flags._joinStyle = initialJoinStyle();
 200             svg_inherited_flags._colorInterpolation = initialColorInterpolation();
 201             svg_inherited_flags._colorInterpolationFilters = initialColorInterpolationFilters();
 202             svg_inherited_flags._pointerEvents = initialPointerEvents();
 203             svg_inherited_flags._writingMode = initialWritingMode();
 204             svg_inherited_flags._glyphOrientationHorizontal = initialGlyphOrientationHorizontal();
 205             svg_inherited_flags._glyphOrientationVertical = initialGlyphOrientationVertical();
 206
 207             svg_noninherited_flags._niflags = 0;
 208             svg_noninherited_flags.f._alignmentBaseline = initialAlignmentBaseline();
 209             svg_noninherited_flags.f._dominantBaseline = initialDominantBaseline();
 210             svg_noninherited_flags.f._baselineShift = initialBaselineShift();
 211         }
 212     };
 213
 214 } // namespace WebCore
 215
 216 #endif // ENABLE(SVG)
 217 #endif // SVGRenderStyle_h
 218
 219 // vim:ts=4:noet