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LibWeb+LibWebView: Include system math font in a font cascade list

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Adds math symbols rendering support on linux (if it has "Noto Sans
Math" font).
This commit is contained in:
Nicolas 2024-11-14 02:08:48 -03:00
parent 3b04c983f1
commit 257bab64b2
5 changed files with 23 additions and 2 deletions
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4
Libraries/LibWeb/CSS/StyleComputer.cpp
View file

@ -2051,6 +2051,10 @@ RefPtr<Gfx::FontCascadeList const> StyleComputer::compute_font_for_style_values(
font_list->add(*emoji_font);
}
if (auto math_font = Platform::FontPlugin::the().default_math_font(font_size_in_pt); math_font) {
font_list->add(*math_font);
}
auto found_font = StyleProperties::font_fallback(monospace, bold);
font_list->set_last_resort_font(found_font->with_size(font_size_in_pt));

1
Libraries/LibWeb/Platform/FontPlugin.h
View file

@ -34,6 +34,7 @@ public:
virtual Gfx::Font& default_font() = 0;
virtual Gfx::Font& default_fixed_width_font() = 0;
virtual RefPtr<Gfx::Font> default_emoji_font(float point_size) = 0;
virtual RefPtr<Gfx::Font> default_math_font(float point_size) = 0;
virtual FlyString generic_font_name(GenericFont) = 0;
};

5
Libraries/LibWebView/Plugins/FontPlugin.cpp
View file

@ -79,6 +79,11 @@ RefPtr<Gfx::Font> FontPlugin::default_emoji_font(float point_size)
return Gfx::FontDatabase::the().get(default_emoji_font_name, point_size, 400, Gfx::FontWidth::Normal, 0);
}
RefPtr<Gfx::Font> FontPlugin::default_math_font(float point_size)
{
return Gfx::FontDatabase::the().get("Noto Sans Math"_fly_string, point_size, 400, Gfx::FontWidth::Normal, 0);
}
#ifdef USE_FONTCONFIG
static Optional<String> query_fontconfig_for_generic_family(Web::Platform::GenericFont generic_font)
{

1
Libraries/LibWebView/Plugins/FontPlugin.h
View file

@ -21,6 +21,7 @@ public:
virtual Gfx::Font& default_font() override;
virtual Gfx::Font& default_fixed_width_font() override;
virtual RefPtr<Gfx::Font> default_emoji_font(float point_size) override;
virtual RefPtr<Gfx::Font> default_math_font(float point_size) override;
virtual FlyString generic_font_name(Web::Platform::GenericFont) override;
void update_generic_fonts();

14
Tests/LibWeb/Layout/expected/css-text-transform-math-auto.txt
View file

@ -2,8 +2,18 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
BlockContainer <body> at (8,16) content-size 784x17 children: not-inline
BlockContainer <p> at (8,16) content-size 784x17 children: inline
frag 0 from TextNode start: 0, length: 67, rect: [8,16 118.40625x17] baseline: 13.296875
"𝑊𝑒𝑙𝑙, ℎ𝑒𝑙𝑙𝑜 𝑓𝑟𝑖𝑒𝑛𝑑𝑠!"
frag 0 from TextNode start: 0, length: 16, rect: [8,16 29.171875x17] baseline: 13.296875
"𝑊𝑒𝑙𝑙"
frag 1 from TextNode start: 16, length: 2, rect: [37,16 13.046875x17] baseline: 13.296875
", "
frag 2 from TextNode start: 18, length: 19, rect: [50,16 33x17] baseline: 13.296875
"ℎ𝑒𝑙𝑙𝑜"
frag 3 from TextNode start: 37, length: 1, rect: [83,16 8x17] baseline: 13.296875
" "
frag 4 from TextNode start: 38, length: 28, rect: [91,16 44.171875x17] baseline: 13.296875
"𝑓𝑟𝑖𝑒𝑛𝑑𝑠"
frag 5 from TextNode start: 66, length: 1, rect: [135,16 3.859375x17] baseline: 13.296875
"!"
TextNode <#text>
BlockContainer <(anonymous)> at (8,49) content-size 784x0 children: inline
TextNode <#text>