migrations/egui
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Stop accumulating rounding error on purpose

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This commit is contained in:
valadaptive
2025-09-08 04:43:07 -04:00
parent dcb6420a41
commit 03a4f2c181
1 changed files with 3 additions and 11 deletions
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14
crates/epaint/src/text/font.rs
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@@ -209,8 +209,6 @@ impl FontImpl {
last_glyph_id: ab_glyph::GlyphId,
glyph_id: ab_glyph::GlyphId,
) -> f32 {
// Round to an even number of physical pixels to get even kerning.
// See https://github.com/emilk/egui/issues/382
self.ab_glyph_font.kern_unscaled(last_glyph_id, glyph_id) * metrics.px_scale_factor
/ metrics.pixels_per_point
}
@@ -224,19 +222,13 @@ impl FontImpl {
let descent = (self.ab_glyph_font.descent_unscaled() * pt_scale_factor).round_ui();
let line_gap = (self.ab_glyph_font.line_gap_unscaled() * pt_scale_factor).round_ui();
// Round to an even number of physical pixels to get even kerning.
// See https://github.com/emilk/egui/issues/382
let px_scale_factor = self
.ab_glyph_font
.px_scale_factor((font_size * self.tweak.scale * pixels_per_point).round());
let scale = font_size * self.tweak.scale * pixels_per_point;
let px_scale_factor = self.ab_glyph_font.px_scale_factor(scale);
let y_offset_points = ((font_size * self.tweak.scale * self.tweak.y_offset_factor)
let y_offset_in_points = ((font_size * self.tweak.scale * self.tweak.y_offset_factor)
+ self.tweak.y_offset)
.round_ui();
// Round to closest pixel:
let y_offset_in_points = (y_offset_points * pixels_per_point).round() / pixels_per_point;
ScaledMetrics {
pixels_per_point,
px_scale_factor,