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LibWeb: Support percentage values in SVG text positioning element
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parent
4795b9206c
commit
356bddbdbb
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github-actions[bot]
2024-07-21 17:57:31 +00:00
Author: https://github.com/EdwinHoksberg Commit: https://github.com/LadybirdBrowser/ladybird/commit/356bddbdbb7 Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/752
@ -0,0 +1,29 @@
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Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
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BlockContainer <body> at (8,8) content-size 784x261.328125 children: inline
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frag 0 from SVGSVGBox start: 0, length: 0, rect: [8,8 784x261.328125] baseline: 261.328125
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SVGSVGBox <svg> at (8,8) content-size 784x261.328125 [SVG] children: inline
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TextNode <#text>
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TextNode <#text>
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SVGTextBox <text.small> at (86.40625,65.5) content-size 48.109375x37.484375 children: inline
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TextNode <#text>
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TextNode <#text>
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SVGTextBox <text.heavy> at (141.28125,21.078125) content-size 148.234375x79.71875 children: inline
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TextNode <#text>
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TextNode <#text>
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SVGTextBox <text.small> at (204,117.765625) content-size 34.59375x34.703125 children: inline
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TextNode <#text>
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TextNode <#text>
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SVGTextBox <text.Rrrrr> at (243.1875,47.21875) content-size 519.34375x115.359375 children: inline
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TextNode <#text>
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TextNode <#text>
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TextNode <#text>
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ViewportPaintable (Viewport<#document>) [0,0 800x600]
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PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
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PaintableWithLines (BlockContainer<BODY>) [8,8 784x261.328125]
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SVGSVGPaintable (SVGSVGBox<svg>) [8,8 784x261.328125]
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SVGPathPaintable (SVGTextBox<text>.small) [86.40625,65.5 48.109375x37.484375]
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SVGPathPaintable (SVGTextBox<text>.heavy) [141.28125,21.078125 148.234375x79.71875]
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SVGPathPaintable (SVGTextBox<text>.small) [204,117.765625 34.59375x34.703125]
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SVGPathPaintable (SVGTextBox<text>.Rrrrr) [243.1875,47.21875 519.34375x115.359375]
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@ -0,0 +1,20 @@
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<svg viewBox="0 0 240 80" xmlns="http://www.w3.org/2000/svg">
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<style>
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.small {
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font: italic 13px sans-serif;
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}
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.heavy {
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font: bold 30px sans-serif;
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}
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.Rrrrr {
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font: italic 40px serif;
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fill: red;
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}
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</style>
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<text x="10%" y="35%" class="small">My</text>
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<text x="17%" y="35%" class="heavy">cat</text>
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<text x="25%" y="55%" class="small">is</text>
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<text x="30%" y="55%" class="Rrrrr">Grumpy!</text>
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</svg>
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After Width: | Height: | Size: 465 B |
@ -308,7 +308,7 @@ Gfx::Path SVGFormattingContext::compute_path_for_text(SVGTextBox const& text_box
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auto text_contents = text_element.text_contents();
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Utf8View text_utf8 { text_contents };
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auto text_width = font.width(text_utf8);
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auto text_offset = text_element.get_offset();
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auto text_offset = text_element.get_offset(m_viewport_size);
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// https://svgwg.org/svg2-draft/text.html#TextAnchoringProperties
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switch (text_element.text_anchor().value_or(SVG::TextAnchor::Start)) {
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@ -34,19 +34,27 @@ void SVGTextPositioningElement::attribute_changed(FlyString const& name, Optiona
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SVGGraphicsElement::attribute_changed(name, old_value, value);
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if (name == SVG::AttributeNames::x) {
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m_x = AttributeParser::parse_coordinate(value.value_or(String {})).value_or(m_x);
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m_x = AttributeParser::parse_number_percentage(value.value_or(String {}));
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} else if (name == SVG::AttributeNames::y) {
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m_y = AttributeParser::parse_coordinate(value.value_or(String {})).value_or(m_y);
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m_y = AttributeParser::parse_number_percentage(value.value_or(String {}));
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} else if (name == SVG::AttributeNames::dx) {
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m_dx = AttributeParser::parse_coordinate(value.value_or(String {})).value_or(m_dx);
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m_dx = AttributeParser::parse_number_percentage(value.value_or(String {}));
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} else if (name == SVG::AttributeNames::dy) {
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m_dy = AttributeParser::parse_coordinate(value.value_or(String {})).value_or(m_dy);
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m_dy = AttributeParser::parse_number_percentage(value.value_or(String {}));
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}
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}
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Gfx::FloatPoint SVGTextPositioningElement::get_offset() const
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Gfx::FloatPoint SVGTextPositioningElement::get_offset(CSSPixelSize const& viewport_size) const
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{
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return { m_x + m_dx, m_y + m_dy };
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auto const viewport_width = viewport_size.width().to_float();
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auto const viewport_height = viewport_size.height().to_float();
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float const x = m_x.value_or({ 0, false }).resolve_relative_to(viewport_width);
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float const y = m_y.value_or({ 0, false }).resolve_relative_to(viewport_height);
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float const dx = m_dx.value_or({ 0, false }).resolve_relative_to(viewport_width);
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float const dy = m_dy.value_or({ 0, false }).resolve_relative_to(viewport_height);
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return { x + dx, y + dy };
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}
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}
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@ -18,7 +18,7 @@ class SVGTextPositioningElement : public SVGTextContentElement {
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public:
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virtual void attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value) override;
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Gfx::FloatPoint get_offset() const;
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Gfx::FloatPoint get_offset(CSSPixelSize const& viewport_size) const;
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JS::NonnullGCPtr<SVGAnimatedLength> x() const;
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JS::NonnullGCPtr<SVGAnimatedLength> y() const;
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@ -31,10 +31,10 @@ protected:
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virtual void initialize(JS::Realm&) override;
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private:
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float m_x { 0 };
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float m_y { 0 };
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float m_dx { 0 };
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float m_dy { 0 };
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Optional<NumberPercentage> m_x;
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Optional<NumberPercentage> m_y;
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Optional<NumberPercentage> m_dx;
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Optional<NumberPercentage> m_dy;
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};
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}
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