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-rw-r--r--src/layout/text.rs52
1 files changed, 25 insertions, 27 deletions
diff --git a/src/layout/text.rs b/src/layout/text.rs
index cbe40214..22616667 100644
--- a/src/layout/text.rs
+++ b/src/layout/text.rs
@@ -4,10 +4,8 @@
//! When the primary layouting axis horizontally inversed, the word is spelled
//! backwards. Vertical word layout is not yet supported.
-use toddle::query::{FontQuery, FontIndex};
-use toddle::tables::{CharMap, Header, HorizontalMetrics};
-
-use crate::GlobalFontLoader;
+use fontdock::{FaceId, FaceQuery, FontStyle};
+use crate::font::SharedFontLoader;
use crate::length::{Length, Size};
use crate::style::TextStyle;
use super::*;
@@ -19,7 +17,7 @@ struct TextLayouter<'a> {
text: &'a str,
actions: LayoutActions,
buffer: String,
- active_font: FontIndex,
+ active_font: FaceId,
width: Length,
}
@@ -28,7 +26,7 @@ struct TextLayouter<'a> {
pub struct TextContext<'a> {
/// The font loader to retrieve fonts from when typesetting text
/// using [`layout_text`].
- pub loader: &'a GlobalFontLoader,
+ pub loader: &'a SharedFontLoader,
/// The style for text: Font selection with classes, weights and variants,
/// font sizes, spacing and so on.
pub style: &'a TextStyle,
@@ -52,7 +50,7 @@ impl<'a> TextLayouter<'a> {
text,
actions: LayoutActions::new(),
buffer: String::new(),
- active_font: FontIndex::MAX,
+ active_font: FaceId::MAX,
width: Length::ZERO,
}
}
@@ -109,41 +107,41 @@ impl<'a> TextLayouter<'a> {
/// Select the best font for a character and return its index along with
/// the width of the char in the font.
- async fn select_font(&mut self, c: char) -> Option<(FontIndex, Length)> {
+ async fn select_font(&mut self, c: char) -> Option<(FaceId, Length)> {
let mut loader = self.ctx.loader.borrow_mut();
let mut variant = self.ctx.style.variant;
+
if self.ctx.style.bolder {
variant.weight.0 += 300;
}
- let query = FontQuery {
+ if self.ctx.style.italic {
+ variant.style = match variant.style {
+ FontStyle::Normal => FontStyle::Italic,
+ FontStyle::Italic => FontStyle::Normal,
+ FontStyle::Oblique => FontStyle::Normal,
+ }
+ }
+
+ let query = FaceQuery {
fallback: self.ctx.style.fallback.iter(),
variant,
c,
};
- if let Some((font, index)) = loader.get(query).await {
+ if let Some((id, face)) = loader.query(query).await {
// Determine the width of the char.
- let header = font.read_table::<Header>().ok()?;
- let font_unit_ratio = 1.0 / (header.units_per_em as f64);
- let font_unit_to_size = |x| Length::pt(font_unit_ratio * x);
-
- let glyph = font
- .read_table::<CharMap>()
- .ok()?
- .get(c)?;
-
- let glyph_width = font
- .read_table::<HorizontalMetrics>()
- .ok()?
- .get(glyph)?
- .advance_width as f64;
-
- let char_width = font_unit_to_size(glyph_width)
+ let units_per_em = face.units_per_em().unwrap_or(1000);
+ let ratio = 1.0 / (units_per_em as f64);
+ let to_length = |x| Length::pt(ratio * x as f64);
+
+ let glyph = face.glyph_index(c)?;
+ let glyph_width = face.glyph_hor_advance(glyph)?;
+ let char_width = to_length(glyph_width)
* self.ctx.style.font_size().to_pt();
- Some((index, char_width))
+ Some((id, char_width))
} else {
None
}