RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 04:07:44 +00:00
Code Issues Activity Actions

LibWeb: Add CSSPixels::nearest_value_for(FloatingPoint)

Browse source 
This is intended to annotate conversions from unknown floating-point
values to CSSPixels, and make it more obvious the fp value will be
rounded to the nearest fixed-point value.
This commit is contained in:
MacDue 2023-08-26 15:57:31 +01:00 • committed by Alexander Kalenik
parent 360c0eb509
commit 71baa8c31a
28 changed files with 120 additions and 112 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
View file

@ -2036,7 +2036,7 @@ Length::FontMetrics StyleComputer::calculate_root_element_font_metrics(StyleProp
auto root_value = style.property(CSS::PropertyID::FontSize);
auto font_pixel_metrics = style.computed_font().pixel_metrics();
Length::FontMetrics font_metrics { m_default_font_metrics.font_size, font_pixel_metrics, CSSPixels(font_pixel_metrics.line_spacing()) };
Length::FontMetrics font_metrics { m_default_font_metrics.font_size, font_pixel_metrics, CSSPixels::nearest_value_for(font_pixel_metrics.line_spacing()) };
font_metrics.font_size = root_value->as_length().length().to_px(viewport_rect(), font_metrics, font_metrics);
font_metrics.line_height = style.line_height(viewport_rect(), font_metrics, font_metrics);
@ -2197,7 +2197,7 @@ RefPtr<Gfx::Font const> StyleComputer::compute_font_for_style_values(DOM::Elemen
// and smaller may compute the font size to the previous entry in the table.
if (identifier == CSS::ValueID::Smaller || identifier == CSS::ValueID::Larger) {
if (parent_element && parent_element->computed_css_values()) {
font_size_in_px = CSSPixels(parent_element->computed_css_values()->computed_font().pixel_metrics().size);
font_size_in_px = CSSPixels::nearest_value_for(parent_element->computed_css_values()->computed_font().pixel_metrics().size);
}
}
auto const multiplier = absolute_size_mapping.get(identifier).value_or(1.0);
@ -2213,7 +2213,7 @@ RefPtr<Gfx::Font const> StyleComputer::compute_font_for_style_values(DOM::Elemen
Optional<Length> maybe_length;
if (font_size.is_percentage()) {
// Percentages refer to parent element's font size
maybe_length = Length::make_px(CSSPixels(font_size.as_percentage().percentage().as_fraction() * parent_font_size().to_double()));
maybe_length = Length::make_px(CSSPixels::nearest_value_for(font_size.as_percentage().percentage().as_fraction() * parent_font_size().to_double()));
} else if (font_size.is_length()) {
maybe_length = font_size.as_length().length();
@ -2350,7 +2350,7 @@ void StyleComputer::compute_font(StyleProperties& style, DOM::Element const* ele
auto found_font = compute_font_for_style_values(element, pseudo_element, font_family, font_size, font_style, font_weight, font_stretch);
style.set_property(CSS::PropertyID::FontSize, LengthStyleValue::create(CSS::Length::make_px(CSSPixels(found_font->pixel_size()))), nullptr);
style.set_property(CSS::PropertyID::FontSize, LengthStyleValue::create(CSS::Length::make_px(CSSPixels::nearest_value_for(found_font->pixel_size()))), nullptr);
style.set_property(CSS::PropertyID::FontWeight, NumberStyleValue::create(font_weight->to_font_weight()));
style.set_computed_font(found_font.release_nonnull());
@ -2401,7 +2401,7 @@ void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const
auto line_height_value_slot = style.m_property_values[to_underlying(CSS::PropertyID::LineHeight)].map([](auto& x) -> auto& { return x.style; });
if (line_height_value_slot.has_value() && (*line_height_value_slot)->is_percentage()) {
*line_height_value_slot = LengthStyleValue::create(
Length::make_px(CSSPixels(font_size * static_cast<double>((*line_height_value_slot)->as_percentage().percentage().as_fraction()))));
Length::make_px(CSSPixels::nearest_value_for(font_size * static_cast<double>((*line_height_value_slot)->as_percentage().percentage().as_fraction()))));
}
auto line_height = style.line_height(viewport_rect(), font_metrics, m_root_element_font_metrics);