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LibWeb: Wrap font metrics into a struct

Rather than passing an increasingly-unwieldy number of font parameters
individually to every function that resolves lengths, let's wrap them
up.

This is frustratingly close to being `Gfx::FontPixelMetrics`, but bitmap
fonts cause issues: We choose the closest font to what the CSS
requests, but that might have a wildly different size than what the
page expects, so we have to fudge the numbers.

No behaviour changes.
This commit is contained in:
Sam Atkins 2023-04-28 16:29:12 +01:00 committed by Andreas Kling
parent 4a191875a9
commit 0679b4e0b9
14 changed files with 107 additions and 62 deletions

View file

@ -20,12 +20,12 @@ ErrorOr<String> ShadowStyleValue::to_string() const
return builder.to_string();
}
ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size, CSSPixels line_height, CSSPixels root_line_height) const
ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
{
auto absolutized_offset_x = m_properties.offset_x.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
auto absolutized_offset_y = m_properties.offset_y.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
auto absolutized_blur_radius = m_properties.blur_radius.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
auto absolutized_spread_distance = m_properties.spread_distance.absolutized(viewport_rect, font_metrics, font_size, root_font_size, line_height, root_line_height);
auto absolutized_offset_x = m_properties.offset_x.absolutized(viewport_rect, font_metrics, root_font_metrics);
auto absolutized_offset_y = m_properties.offset_y.absolutized(viewport_rect, font_metrics, root_font_metrics);
auto absolutized_blur_radius = m_properties.blur_radius.absolutized(viewport_rect, font_metrics, root_font_metrics);
auto absolutized_spread_distance = m_properties.spread_distance.absolutized(viewport_rect, font_metrics, root_font_metrics);
return ShadowStyleValue::create(m_properties.color, absolutized_offset_x, absolutized_offset_y, absolutized_blur_radius, absolutized_spread_distance, m_properties.placement);
}