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LibWeb: Scale SVG stroke-width based on viewbox

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This fixes the clipping of strokes in quite a few cases and now fixes
the Gartic Phone logo :^)

(Layout test updated but no visible changes there)
This commit is contained in:
MacDue 2023-04-15 15:32:17 +01:00 • committed by Andreas Kling
parent cb79c6bc2f
commit f9c61e3ba7
5 changed files with 33 additions and 21 deletions
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7
Userland/Libraries/LibWeb/Painting/SVGGeometryPaintable.cpp
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@ -71,7 +71,9 @@ void SVGGeometryPaintable::paint(PaintContext& context, PaintPhase phase) const
auto transform = layout_box().layout_transform();
if (!transform.has_value())
return;
Gfx::Path path = const_cast<SVG::SVGGeometryElement&>(geometry_element).get_path().copy_transformed(Gfx::AffineTransform {}.scale(css_scale, css_scale).multiply(*transform));
auto paint_transform = Gfx::AffineTransform {}.scale(css_scale, css_scale).multiply(*transform);
Gfx::Path path = const_cast<SVG::SVGGeometryElement&>(geometry_element).get_path().copy_transformed(paint_transform);
if (auto fill_color = geometry_element.fill_color().value_or(svg_context.fill_color()); fill_color.alpha() > 0) {
// We need to fill the path before applying the stroke, however the filled
@ -91,7 +93,8 @@ void SVGGeometryPaintable::paint(PaintContext& context, PaintPhase phase) const
painter.stroke_path(
path,
stroke_color,
geometry_element.stroke_width().value_or(svg_context.stroke_width()) * context.device_pixels_per_css_pixel());
// Note: This is assuming .x_scale() == .y_scale() (which it does currently).
geometry_element.stroke_width().value_or(svg_context.stroke_width()) * paint_transform.x_scale());
}
}