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LibWeb: Implement SVGGradientElement

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This is the base class for all SVG gradient types. This supports:

- The `gradientUnits` attribute
- The `gradientTransform` attribute
- And following `xlink:hrefs` for inheriting <stops>/attributes
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MacDue 2023-04-21 18:51:00 +01:00 • committed by Andreas Kling
parent a5fa5e55ef
commit 71938550fa
7 changed files with 175 additions and 0 deletions
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13
Userland/Libraries/LibWeb/SVG/AttributeParser.cpp
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@ -494,6 +494,19 @@ Optional<PreserveAspectRatio> AttributeParser::parse_preserve_aspect_ratio(Strin
return PreserveAspectRatio { *align, *meet_or_slice };
}
// https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementGradientUnitsAttribute
Optional<GradientUnits> AttributeParser::parse_gradient_units(StringView input)
{
GenericLexer lexer { input };
lexer.ignore_while(whitespace);
auto gradient_units_string = lexer.consume_until(whitespace);
if (gradient_units_string == "userSpaceOnUse"sv)
return GradientUnits::UserSpaceOnUse;
if (gradient_units_string == "objectBoundingBox"sv)
return GradientUnits::ObjectBoundingBox;
return {};
}
// https://drafts.csswg.org/css-transforms/#svg-syntax
Optional<Vector<Transform>> AttributeParser::parse_transform()
{