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LibGfx: Implement font kerning for Painter::draw_text_run

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This commit is contained in:
Jelle Raaijmakers 2022-04-01 12:41:38 +02:00 • committed by Andreas Kling
parent ae2ec45e78
commit ee9a2e0715
1 changed files with 6 additions and 3 deletions
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9
Userland/Libraries/LibGfx/Painter.cpp
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@ -2322,14 +2322,17 @@ void Painter::draw_text_run(FloatPoint const& baseline_start, Utf8View const& st
int y = baseline_start.y() - pixel_metrics.ascent;
float space_width = font.glyph_or_emoji_width(' ');
u32 last_code_point = 0;
for (auto code_point : string) {
if (code_point == ' ') {
x += space_width;
last_code_point = code_point;
continue;
}
float advance = font.glyph_or_emoji_width(code_point) + font.glyph_spacing();
draw_glyph_or_emoji({ (int)roundf(x), y }, code_point, font, color);
x += advance;
x += font.glyphs_horizontal_kerning(last_code_point, code_point);
draw_glyph_or_emoji({ static_cast<int>(lroundf(x)), y }, code_point, font, color);
x += font.glyph_or_emoji_width(code_point) + font.glyph_spacing();
last_code_point = code_point;
}
}