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LibWeb: Fix text-shadow position with non 100% window scale

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Tom Lynch 2025-06-24 19:26:02 +10:00 committed by Alexander Kalenik
parent d7bdbeb446
commit 831ba5d655
1 changed files with 7 additions and 4 deletions
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11
Libraries/LibWeb/Painting/ShadowPainting.cpp
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@ -76,9 +76,10 @@ void paint_text_shadow(PaintContext& context, PaintableFragment const& fragment,
auto fragment_width = context.enclosing_device_pixels(fragment.width()).value();
auto fragment_height = context.enclosing_device_pixels(fragment.height()).value();
auto fragment_baseline = context.rounded_device_pixels(fragment.baseline()).value();
auto fragment_absolute_rect = fragment.absolute_rect();
// Note: Box-shadow layers are ordered front-to-back, so we paint them in reverse
for (auto& layer : shadow_layers.in_reverse()) {
for (auto const& layer : shadow_layers.in_reverse()) {
int blur_radius = context.rounded_device_pixels(layer.blur_radius).value();
// Space around the painted text to allow it to blur.
@ -94,11 +95,13 @@ void paint_text_shadow(PaintContext& context, PaintableFragment const& fragment,
text_rect.height() + margin + margin
};
// FIXME: this is close but not quite perfect. non integer scale values can be offset by tiny amounts.
auto css_margin = layer.blur_radius * 2;
auto scale = context.device_pixels_per_css_pixel();
auto draw_location = Gfx::FloatPoint {
fragment.absolute_rect().x() + layer.offset_x - margin,
fragment.absolute_rect().y() + layer.offset_y - margin,
} * scale;
fragment_absolute_rect.x() + layer.offset_x - css_margin,
fragment_absolute_rect.y() + layer.offset_y - css_margin,
} * (float)scale;
context.display_list_recorder().paint_text_shadow(blur_radius, bounding_rect, text_rect.translated(0, fragment_baseline), *glyph_run, scale, layer.color, draw_location);
}