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LibWeb/SVG: Skip unwanted transformations on clip-path

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Gingeh 2025-01-08 14:44:00 +11:00 • committed by Alexander Kalenik
commit 93f9ed72d2
Notes: github-actions[bot] 2025-02-01 12:39:52 +00:00
5 changed files with 44 additions and 6 deletions
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10
Libraries/LibWeb/Painting/SVGMaskable.cpp
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@ -87,7 +87,15 @@ RefPtr<Gfx::ImmutableBitmap> SVGMaskable::calculate_mask_of_svg(PaintContext& co
DisplayListRecorder display_list_recorder(*display_list);
display_list_recorder.translate(-mask_rect.location().to_type<int>());
auto paint_context = context.clone(display_list_recorder);
paint_context.set_svg_transform(graphics_element.get_transform());
auto const& mask_element = as<SVG::SVGGraphicsElement const>(*paintable.dom_node());
// FIXME: Nested transformations are incorrect when clipPathUnits="objectBoundingBox".
paint_context.set_svg_transform(
// Transform the mask's content into the target's space.
graphics_element.get_transform()
// Undo any transformations already applied to the mask's parents.
.multiply(mask_element.get_transform().inverse().value())
// Re-apply the mask's own transformation since that is still needed.
.multiply(mask_element.element_transform()));
paint_context.set_draw_svg_geometry_for_clip_path(is<SVGClipPaintable>(paintable));
StackingContext::paint_svg(paint_context, paintable, PaintPhase::Foreground);
auto painting_surface = Gfx::PaintingSurface::wrap_bitmap(*mask_bitmap);