| /* |
| Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 2004, 2005 Rob Buis <buis@kde.org> |
| Copyright (C) 2005, 2006 Apple Computer, Inc. |
| Copyright (C) Research In Motion Limited 2010. All rights reserved. |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public License |
| along with this library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef SVGComputedStyle_h |
| #define SVGComputedStyle_h |
| |
| #include "core/CoreExport.h" |
| #include "core/style/DataRef.h" |
| #include "core/style/ComputedStyleConstants.h" |
| #include "core/style/SVGComputedStyleDefs.h" |
| #include "core/style/StyleDifference.h" |
| #include "platform/Length.h" |
| #include "platform/graphics/GraphicsTypes.h" |
| #include "wtf/Forward.h" |
| #include "wtf/RefCounted.h" |
| |
| namespace blink { |
| |
| class CORE_EXPORT SVGComputedStyle : public RefCounted<SVGComputedStyle> { |
| public: |
| static PassRefPtr<SVGComputedStyle> create() { return adoptRef(new SVGComputedStyle); } |
| PassRefPtr<SVGComputedStyle> copy() const { return adoptRef(new SVGComputedStyle(*this));} |
| ~SVGComputedStyle(); |
| |
| bool inheritedNotEqual(const SVGComputedStyle*) const; |
| void inheritFrom(const SVGComputedStyle*); |
| void copyNonInheritedFromCached(const SVGComputedStyle*); |
| |
| StyleDifference diff(const SVGComputedStyle*) const; |
| |
| bool operator==(const SVGComputedStyle&) const; |
| bool operator!=(const SVGComputedStyle& o) const { return !(*this == o); } |
| |
| // Initial values for all the properties |
| static EAlignmentBaseline initialAlignmentBaseline() { return AB_AUTO; } |
| static EDominantBaseline initialDominantBaseline() { return DB_AUTO; } |
| static EBaselineShift initialBaselineShift() { return BS_LENGTH; } |
| static Length initialBaselineShiftValue() { return Length(Fixed); } |
| static EVectorEffect initialVectorEffect() { return VE_NONE; } |
| static EBufferedRendering initialBufferedRendering() { return BR_AUTO; } |
| static LineCap initialCapStyle() { return ButtCap; } |
| static WindRule initialClipRule() { return RULE_NONZERO; } |
| static EColorInterpolation initialColorInterpolation() { return CI_SRGB; } |
| static EColorInterpolation initialColorInterpolationFilters() { return CI_LINEARRGB; } |
| static EColorRendering initialColorRendering() { return CR_AUTO; } |
| static WindRule initialFillRule() { return RULE_NONZERO; } |
| static LineJoin initialJoinStyle() { return MiterJoin; } |
| static EShapeRendering initialShapeRendering() { return SR_AUTO; } |
| static ETextAnchor initialTextAnchor() { return TA_START; } |
| static float initialFillOpacity() { return 1; } |
| static SVGPaintType initialFillPaintType() { return SVG_PAINTTYPE_RGBCOLOR; } |
| static Color initialFillPaintColor() { return Color::black; } |
| static String initialFillPaintUri() { return String(); } |
| static float initialStrokeOpacity() { return 1; } |
| static SVGPaintType initialStrokePaintType() { return SVG_PAINTTYPE_NONE; } |
| static Color initialStrokePaintColor() { return Color(); } |
| static String initialStrokePaintUri() { return String(); } |
| static PassRefPtr<SVGDashArray> initialStrokeDashArray(); |
| static Length initialStrokeDashOffset() { return Length(Fixed); } |
| static float initialStrokeMiterLimit() { return 4; } |
| static UnzoomedLength initialStrokeWidth() { return UnzoomedLength(Length(1, Fixed)); } |
| static float initialStopOpacity() { return 1; } |
| static Color initialStopColor() { return Color(0, 0, 0); } |
| static float initialFloodOpacity() { return 1; } |
| static Color initialFloodColor() { return Color(0, 0, 0); } |
| static Color initialLightingColor() { return Color(255, 255, 255); } |
| static const AtomicString& initialClipperResource() { return nullAtom; } |
| static const AtomicString& initialMaskerResource() { return nullAtom; } |
| static const AtomicString& initialMarkerStartResource() { return nullAtom; } |
| static const AtomicString& initialMarkerMidResource() { return nullAtom; } |
| static const AtomicString& initialMarkerEndResource() { return nullAtom; } |
| static EMaskType initialMaskType() { return MT_LUMINANCE; } |
| static EPaintOrder initialPaintOrder() { return PaintOrderNormal; } |
| static StylePath* initialD() { return nullptr; } |
| static Length initialCx() { return Length(Fixed); } |
| static Length initialCy() { return Length(Fixed); } |
| static Length initialX() { return Length(Fixed); } |
| static Length initialY() { return Length(Fixed); } |
| static Length initialR() { return Length(Fixed); } |
| static Length initialRx() { return Length(Auto); } |
| static Length initialRy() { return Length(Auto); } |
| |
| // SVG CSS Property setters |
| void setAlignmentBaseline(EAlignmentBaseline val) { svg_noninherited_flags.f.alignmentBaseline = val; } |
| void setDominantBaseline(EDominantBaseline val) { svg_inherited_flags.dominantBaseline = val; } |
| void setBaselineShift(EBaselineShift val) { svg_noninherited_flags.f.baselineShift = val; } |
| void setVectorEffect(EVectorEffect val) { svg_noninherited_flags.f.vectorEffect = val; } |
| void setBufferedRendering(EBufferedRendering val) { svg_noninherited_flags.f.bufferedRendering = val; } |
| void setCapStyle(LineCap val) { svg_inherited_flags.capStyle = val; } |
| void setClipRule(WindRule val) { svg_inherited_flags.clipRule = val; } |
| void setColorInterpolation(EColorInterpolation val) { svg_inherited_flags.colorInterpolation = val; } |
| void setColorInterpolationFilters(EColorInterpolation val) { svg_inherited_flags.colorInterpolationFilters = val; } |
| void setColorRendering(EColorRendering val) { svg_inherited_flags.colorRendering = val; } |
| void setFillRule(WindRule val) { svg_inherited_flags.fillRule = val; } |
| void setJoinStyle(LineJoin val) { svg_inherited_flags.joinStyle = val; } |
| void setShapeRendering(EShapeRendering val) { svg_inherited_flags.shapeRendering = val; } |
| void setTextAnchor(ETextAnchor val) { svg_inherited_flags.textAnchor = val; } |
| void setMaskType(EMaskType val) { svg_noninherited_flags.f.maskType = val; } |
| void setPaintOrder(EPaintOrder val) { svg_inherited_flags.paintOrder = (int)val; } |
| void setD(PassRefPtr<StylePath> d) |
| { |
| if (!(geometry->d == d)) |
| geometry.access()->d = d; |
| } |
| void setCx(const Length& obj) |
| { |
| if (!(geometry->cx == obj)) |
| geometry.access()->cx = obj; |
| } |
| void setCy(const Length& obj) |
| { |
| if (!(geometry->cy == obj)) |
| geometry.access()->cy = obj; |
| } |
| void setX(const Length& obj) |
| { |
| if (!(geometry->x == obj)) |
| geometry.access()->x = obj; |
| } |
| void setY(const Length& obj) |
| { |
| if (!(geometry->y == obj)) |
| geometry.access()->y = obj; |
| } |
| void setR(const Length& obj) |
| { |
| if (!(geometry->r == obj)) |
| geometry.access()->r = obj; |
| } |
| void setRx(const Length& obj) |
| { |
| if (!(geometry->rx == obj)) |
| geometry.access()->rx = obj; |
| } |
| void setRy(const Length& obj) |
| { |
| if (!(geometry->ry == obj)) |
| geometry.access()->ry = obj; |
| } |
| void setFillOpacity(float obj) |
| { |
| if (!(fill->opacity == obj)) |
| fill.access()->opacity = obj; |
| } |
| |
| void setFillPaint(SVGPaintType type, const Color& color, const String& uri, bool applyToRegularStyle = true, bool applyToVisitedLinkStyle = false) |
| { |
| if (applyToRegularStyle) { |
| if (!(fill->paintType == type)) |
| fill.access()->paintType = type; |
| if (!(fill->paintColor == color)) |
| fill.access()->paintColor = color; |
| if (!(fill->paintUri == uri)) |
| fill.access()->paintUri = uri; |
| } |
| if (applyToVisitedLinkStyle) { |
| if (!(fill->visitedLinkPaintType == type)) |
| fill.access()->visitedLinkPaintType = type; |
| if (!(fill->visitedLinkPaintColor == color)) |
| fill.access()->visitedLinkPaintColor = color; |
| if (!(fill->visitedLinkPaintUri == uri)) |
| fill.access()->visitedLinkPaintUri = uri; |
| } |
| } |
| |
| void setStrokeOpacity(float obj) |
| { |
| if (!(stroke->opacity == obj)) |
| stroke.access()->opacity = obj; |
| } |
| |
| void setStrokePaint(SVGPaintType type, const Color& color, const String& uri, bool applyToRegularStyle = true, bool applyToVisitedLinkStyle = false) |
| { |
| if (applyToRegularStyle) { |
| if (!(stroke->paintType == type)) |
| stroke.access()->paintType = type; |
| if (!(stroke->paintColor == color)) |
| stroke.access()->paintColor = color; |
| if (!(stroke->paintUri == uri)) |
| stroke.access()->paintUri = uri; |
| } |
| if (applyToVisitedLinkStyle) { |
| if (!(stroke->visitedLinkPaintType == type)) |
| stroke.access()->visitedLinkPaintType = type; |
| if (!(stroke->visitedLinkPaintColor == color)) |
| stroke.access()->visitedLinkPaintColor = color; |
| if (!(stroke->visitedLinkPaintUri == uri)) |
| stroke.access()->visitedLinkPaintUri = uri; |
| } |
| } |
| |
| void setStrokeDashArray(PassRefPtr<SVGDashArray> dashArray) |
| { |
| if (*stroke->dashArray != *dashArray) |
| stroke.access()->dashArray = dashArray; |
| } |
| |
| void setStrokeMiterLimit(float obj) |
| { |
| if (!(stroke->miterLimit == obj)) |
| stroke.access()->miterLimit = obj; |
| } |
| |
| void setStrokeWidth(const UnzoomedLength& strokeWidth) |
| { |
| if (!(stroke->width == strokeWidth)) |
| stroke.access()->width = strokeWidth; |
| } |
| |
| void setStrokeDashOffset(const Length& dashOffset) |
| { |
| if (!(stroke->dashOffset == dashOffset)) |
| stroke.access()->dashOffset = dashOffset; |
| } |
| |
| void setStopOpacity(float obj) |
| { |
| if (!(stops->opacity == obj)) |
| stops.access()->opacity = obj; |
| } |
| |
| void setStopColor(const Color& obj) |
| { |
| if (!(stops->color == obj)) |
| stops.access()->color = obj; |
| } |
| |
| void setFloodOpacity(float obj) |
| { |
| if (!(misc->floodOpacity == obj)) |
| misc.access()->floodOpacity = obj; |
| } |
| |
| void setFloodColor(const Color& obj) |
| { |
| if (!(misc->floodColor == obj)) |
| misc.access()->floodColor = obj; |
| } |
| |
| void setLightingColor(const Color& obj) |
| { |
| if (!(misc->lightingColor == obj)) |
| misc.access()->lightingColor = obj; |
| } |
| |
| void setBaselineShiftValue(const Length& baselineShiftValue) |
| { |
| if (!(misc->baselineShiftValue == baselineShiftValue)) |
| misc.access()->baselineShiftValue = baselineShiftValue; |
| } |
| |
| // Setters for non-inherited resources |
| void setClipperResource(const AtomicString& obj) |
| { |
| if (!(resources->clipper == obj)) |
| resources.access()->clipper = obj; |
| } |
| |
| void setMaskerResource(const AtomicString& obj) |
| { |
| if (!(resources->masker == obj)) |
| resources.access()->masker = obj; |
| } |
| |
| // Setters for inherited resources |
| void setMarkerStartResource(const AtomicString& obj) |
| { |
| if (!(inheritedResources->markerStart == obj)) |
| inheritedResources.access()->markerStart = obj; |
| } |
| |
| void setMarkerMidResource(const AtomicString& obj) |
| { |
| if (!(inheritedResources->markerMid == obj)) |
| inheritedResources.access()->markerMid = obj; |
| } |
| |
| void setMarkerEndResource(const AtomicString& obj) |
| { |
| if (!(inheritedResources->markerEnd == obj)) |
| inheritedResources.access()->markerEnd = obj; |
| } |
| |
| // Read accessors for all the properties |
| EAlignmentBaseline alignmentBaseline() const { return (EAlignmentBaseline) svg_noninherited_flags.f.alignmentBaseline; } |
| EDominantBaseline dominantBaseline() const { return (EDominantBaseline) svg_inherited_flags.dominantBaseline; } |
| EBaselineShift baselineShift() const { return (EBaselineShift) svg_noninherited_flags.f.baselineShift; } |
| EVectorEffect vectorEffect() const { return (EVectorEffect) svg_noninherited_flags.f.vectorEffect; } |
| EBufferedRendering bufferedRendering() const { return (EBufferedRendering) svg_noninherited_flags.f.bufferedRendering; } |
| LineCap capStyle() const { return (LineCap) svg_inherited_flags.capStyle; } |
| WindRule clipRule() const { return (WindRule) svg_inherited_flags.clipRule; } |
| EColorInterpolation colorInterpolation() const { return (EColorInterpolation) svg_inherited_flags.colorInterpolation; } |
| EColorInterpolation colorInterpolationFilters() const { return (EColorInterpolation) svg_inherited_flags.colorInterpolationFilters; } |
| EColorRendering colorRendering() const { return (EColorRendering) svg_inherited_flags.colorRendering; } |
| WindRule fillRule() const { return (WindRule) svg_inherited_flags.fillRule; } |
| LineJoin joinStyle() const { return (LineJoin) svg_inherited_flags.joinStyle; } |
| EShapeRendering shapeRendering() const { return (EShapeRendering) svg_inherited_flags.shapeRendering; } |
| ETextAnchor textAnchor() const { return (ETextAnchor) svg_inherited_flags.textAnchor; } |
| float fillOpacity() const { return fill->opacity; } |
| const SVGPaintType& fillPaintType() const { return fill->paintType; } |
| const Color& fillPaintColor() const { return fill->paintColor; } |
| const String& fillPaintUri() const { return fill->paintUri; } |
| float strokeOpacity() const { return stroke->opacity; } |
| const SVGPaintType& strokePaintType() const { return stroke->paintType; } |
| const Color& strokePaintColor() const { return stroke->paintColor; } |
| const String& strokePaintUri() const { return stroke->paintUri; } |
| SVGDashArray* strokeDashArray() const { return stroke->dashArray.get(); } |
| float strokeMiterLimit() const { return stroke->miterLimit; } |
| const UnzoomedLength& strokeWidth() const { return stroke->width; } |
| const Length& strokeDashOffset() const { return stroke->dashOffset; } |
| float stopOpacity() const { return stops->opacity; } |
| const Color& stopColor() const { return stops->color; } |
| float floodOpacity() const { return misc->floodOpacity; } |
| const Color& floodColor() const { return misc->floodColor; } |
| const Color& lightingColor() const { return misc->lightingColor; } |
| const Length& baselineShiftValue() const { return misc->baselineShiftValue; } |
| StylePath* d() const { return geometry->d.get(); } |
| const Length& cx() const { return geometry->cx; } |
| const Length& cy() const { return geometry->cy; } |
| const Length& x() const { return geometry->x; } |
| const Length& y() const { return geometry->y; } |
| const Length& r() const { return geometry->r; } |
| const Length& rx() const { return geometry->rx; } |
| const Length& ry() const { return geometry->ry; } |
| const AtomicString& clipperResource() const { return resources->clipper; } |
| const AtomicString& maskerResource() const { return resources->masker; } |
| const AtomicString& markerStartResource() const { return inheritedResources->markerStart; } |
| const AtomicString& markerMidResource() const { return inheritedResources->markerMid; } |
| const AtomicString& markerEndResource() const { return inheritedResources->markerEnd; } |
| EMaskType maskType() const { return (EMaskType) svg_noninherited_flags.f.maskType; } |
| EPaintOrder paintOrder() const { return (EPaintOrder) svg_inherited_flags.paintOrder; } |
| EPaintOrderType paintOrderType(unsigned index) const; |
| |
| const SVGPaintType& visitedLinkFillPaintType() const { return fill->visitedLinkPaintType; } |
| const Color& visitedLinkFillPaintColor() const { return fill->visitedLinkPaintColor; } |
| const String& visitedLinkFillPaintUri() const { return fill->visitedLinkPaintUri; } |
| const SVGPaintType& visitedLinkStrokePaintType() const { return stroke->visitedLinkPaintType; } |
| const Color& visitedLinkStrokePaintColor() const { return stroke->visitedLinkPaintColor; } |
| const String& visitedLinkStrokePaintUri() const { return stroke->visitedLinkPaintUri; } |
| |
| bool isFillColorCurrentColor() const |
| { |
| return fillPaintType() == SVG_PAINTTYPE_CURRENTCOLOR |
| || visitedLinkFillPaintType() == SVG_PAINTTYPE_CURRENTCOLOR |
| || fillPaintType() == SVG_PAINTTYPE_URI_CURRENTCOLOR |
| || visitedLinkFillPaintType() == SVG_PAINTTYPE_URI_CURRENTCOLOR; |
| } |
| |
| bool isStrokeColorCurrentColor() const |
| { |
| return strokePaintType() == SVG_PAINTTYPE_CURRENTCOLOR |
| || visitedLinkStrokePaintType() == SVG_PAINTTYPE_CURRENTCOLOR |
| || strokePaintType() == SVG_PAINTTYPE_URI_CURRENTCOLOR |
| || visitedLinkStrokePaintType() == SVG_PAINTTYPE_URI_CURRENTCOLOR; |
| } |
| |
| // convenience |
| bool hasClipper() const { return !clipperResource().isEmpty(); } |
| bool hasMasker() const { return !maskerResource().isEmpty(); } |
| bool hasMarkers() const { return !markerStartResource().isEmpty() || !markerMidResource().isEmpty() || !markerEndResource().isEmpty(); } |
| bool hasStroke() const { return strokePaintType() != SVG_PAINTTYPE_NONE; } |
| bool hasVisibleStroke() const { return hasStroke() && !strokeWidth().isZero(); } |
| bool hasSquareCapStyle() const { return capStyle() == SquareCap; } |
| bool hasMiterJoinStyle() const { return joinStyle() == MiterJoin; } |
| bool hasFill() const { return fillPaintType() != SVG_PAINTTYPE_NONE; } |
| |
| protected: |
| // inherit |
| struct InheritedFlags { |
| bool operator==(const InheritedFlags& other) const |
| { |
| return (colorRendering == other.colorRendering) |
| && (shapeRendering == other.shapeRendering) |
| && (clipRule == other.clipRule) |
| && (fillRule == other.fillRule) |
| && (capStyle == other.capStyle) |
| && (joinStyle == other.joinStyle) |
| && (textAnchor == other.textAnchor) |
| && (colorInterpolation == other.colorInterpolation) |
| && (colorInterpolationFilters == other.colorInterpolationFilters) |
| && (paintOrder == other.paintOrder) |
| && (dominantBaseline == other.dominantBaseline); |
| } |
| |
| bool operator!=(const InheritedFlags& other) const |
| { |
| return !(*this == other); |
| } |
| |
| unsigned colorRendering : 2; // EColorRendering |
| unsigned shapeRendering : 2; // EShapeRendering |
| unsigned clipRule : 1; // WindRule |
| unsigned fillRule : 1; // WindRule |
| unsigned capStyle : 2; // LineCap |
| unsigned joinStyle : 2; // LineJoin |
| unsigned textAnchor : 2; // ETextAnchor |
| unsigned colorInterpolation : 2; // EColorInterpolation |
| unsigned colorInterpolationFilters : 2; // EColorInterpolation_ |
| unsigned paintOrder : 3; // EPaintOrder |
| unsigned dominantBaseline : 4; // EDominantBaseline |
| } svg_inherited_flags; |
| |
| // don't inherit |
| struct NonInheritedFlags { |
| // 32 bit non-inherited, don't add to the struct, or the operator will break. |
| bool operator==(const NonInheritedFlags &other) const { return niflags == other.niflags; } |
| bool operator!=(const NonInheritedFlags &other) const { return niflags != other.niflags; } |
| |
| union { |
| struct { |
| unsigned alignmentBaseline : 4; // EAlignmentBaseline |
| unsigned baselineShift : 2; // EBaselineShift |
| unsigned vectorEffect: 1; // EVectorEffect |
| unsigned bufferedRendering: 2; // EBufferedRendering |
| unsigned maskType: 1; // EMaskType |
| // 18 bits unused |
| } f; |
| uint32_t niflags; |
| }; |
| } svg_noninherited_flags; |
| |
| // inherited attributes |
| DataRef<StyleFillData> fill; |
| DataRef<StyleStrokeData> stroke; |
| DataRef<StyleInheritedResourceData> inheritedResources; |
| |
| // non-inherited attributes |
| DataRef<StyleStopData> stops; |
| DataRef<StyleMiscData> misc; |
| DataRef<StyleGeometryData> geometry; |
| DataRef<StyleResourceData> resources; |
| |
| private: |
| enum CreateInitialType { CreateInitial }; |
| |
| SVGComputedStyle(); |
| SVGComputedStyle(const SVGComputedStyle&); |
| SVGComputedStyle(CreateInitialType); // Used to create the initial style singleton. |
| |
| bool diffNeedsLayoutAndPaintInvalidation(const SVGComputedStyle* other) const; |
| bool diffNeedsPaintInvalidation(const SVGComputedStyle* other) const; |
| |
| void setBitDefaults() |
| { |
| svg_inherited_flags.clipRule = initialClipRule(); |
| svg_inherited_flags.colorRendering = initialColorRendering(); |
| svg_inherited_flags.fillRule = initialFillRule(); |
| svg_inherited_flags.shapeRendering = initialShapeRendering(); |
| svg_inherited_flags.textAnchor = initialTextAnchor(); |
| svg_inherited_flags.capStyle = initialCapStyle(); |
| svg_inherited_flags.joinStyle = initialJoinStyle(); |
| svg_inherited_flags.colorInterpolation = initialColorInterpolation(); |
| svg_inherited_flags.colorInterpolationFilters = initialColorInterpolationFilters(); |
| svg_inherited_flags.paintOrder = initialPaintOrder(); |
| svg_inherited_flags.dominantBaseline = initialDominantBaseline(); |
| |
| svg_noninherited_flags.niflags = 0; |
| svg_noninherited_flags.f.alignmentBaseline = initialAlignmentBaseline(); |
| svg_noninherited_flags.f.baselineShift = initialBaselineShift(); |
| svg_noninherited_flags.f.vectorEffect = initialVectorEffect(); |
| svg_noninherited_flags.f.bufferedRendering = initialBufferedRendering(); |
| svg_noninherited_flags.f.maskType = initialMaskType(); |
| } |
| }; |
| |
| } // namespace blink |
| |
| #endif // SVGComputedStyle_h |
