migrations/egui
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Use Font::ascent for the logical rect, but FontImpl::ascent for centering

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This commit is contained in:
Emil Ernerfeldt
2024-09-18 15:59:57 +02:00
parent 46e44b3af5
commit f051f96b73
2 changed files with 16 additions and 9 deletions
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16
crates/epaint/src/text/text_layout.rs
View File

@@ -172,7 +172,8 @@ fn layout_section(
chr,
pos: pos2(paragraph.cursor_x, f32::NAN),
size: vec2(glyph_info.advance_width, line_height),
ascent: font.ascent(),
font_impl_ascent: font_impl.map_or(0.0, |f| f.ascent()),
font_ascent: font.ascent(),
uv_rect: glyph_info.uv_rect,
section_index,
});
@@ -392,7 +393,8 @@ fn replace_last_glyph_with_overflow_character(
chr: overflow_character,
pos: pos2(x, f32::NAN),
size: vec2(replacement_glyph_info.advance_width, line_height),
ascent: font.ascent(),
font_impl_ascent: font_impl.map_or(0.0, |f| f.ascent()),
font_ascent: font.ascent(),
uv_rect: replacement_glyph_info.uv_rect,
section_index,
});
@@ -404,13 +406,14 @@ fn replace_last_glyph_with_overflow_character(
let x = 0.0; // TODO(emilk): heed paragraph leading_space 😬
let (_, replacement_glyph_info) = font.font_impl_and_glyph_info(overflow_character);
let (font_impl, replacement_glyph_info) = font.font_impl_and_glyph_info(overflow_character);
row.glyphs.push(Glyph {
chr: overflow_character,
pos: pos2(x, f32::NAN),
size: vec2(replacement_glyph_info.advance_width, line_height),
ascent: font.ascent(),
font_impl_ascent: font_impl.map_or(0.0, |f| f.ascent()),
font_ascent: font.ascent(),
uv_rect: replacement_glyph_info.uv_rect,
section_index,
});
@@ -596,8 +599,9 @@ fn galley_from_rows(
for glyph in &mut row.glyphs {
let format = &job.sections[glyph.section_index as usize].format;
glyph.pos.y =
cursor_y + glyph.ascent + format.valign.to_factor() * (row_height - glyph.size.y);
glyph.pos.y = cursor_y
+ glyph.font_impl_ascent
+ format.valign.to_factor() * (row_height - glyph.size.y);
glyph.pos.y = point_scale.round_to_pixel(glyph.pos.y);
}

9
crates/epaint/src/text/text_layout_types.rs
View File

@@ -608,8 +608,11 @@ pub struct Glyph {
/// Logical position: pos.y is the same for all chars of the same [`TextFormat`].
pub pos: Pos2,
/// `ascent` value from the font
pub ascent: f32,
/// `ascent` value from the `Font`
pub font_ascent: f32,
/// `ascent` value from the `FontImpl`
pub font_impl_ascent: f32,
/// Advance width and line height.
///
@@ -631,7 +634,7 @@ impl Glyph {
/// Same y range for all characters with the same [`TextFormat`].
#[inline]
pub fn logical_rect(&self) -> Rect {
Rect::from_min_size(self.pos - vec2(0.0, self.ascent), self.size)
Rect::from_min_size(self.pos - vec2(0.0, self.font_ascent), self.size)
}
}