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Separate WrappedLines from ShapedLines

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ShapedLines are never wrapped, whereas WrappedLines are optionally wrapped if
they are associated with a wrap width. I tried to combine everything because
wrapping is inherently optional for the Text element, but we have a bunch of
APIs that don't make sense on a line that may wrap, so we need a distinct type
for that case.
This commit is contained in:
Nathan Sobo 2023-11-16 20:11:55 -07:00
parent e5ada92b7b
commit 9558da8681
12 changed files with 563 additions and 330 deletions
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29
crates/editor2/src/display_map.rs
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@ -13,7 +13,8 @@ pub use block_map::{BlockMap, BlockPoint};
use collections::{BTreeMap, HashMap, HashSet};
use fold_map::FoldMap;
use gpui::{
Font, FontId, HighlightStyle, Hsla, Line, Model, ModelContext, Pixels, TextRun, UnderlineStyle,
Font, FontId, HighlightStyle, Hsla, LineLayout, Model, ModelContext, Pixels, ShapedLine,
TextRun, UnderlineStyle, WrappedLine,
};
use inlay_map::InlayMap;
use language::{
@ -561,7 +562,7 @@ impl DisplaySnapshot {
})
}
pub fn lay_out_line_for_row(
pub fn layout_row(
&self,
display_row: u32,
TextLayoutDetails {
@ -569,7 +570,7 @@ impl DisplaySnapshot {
editor_style,
rem_size,
}: &TextLayoutDetails,
) -> Line {
) -> Arc<LineLayout> {
let mut runs = Vec::new();
let mut line = String::new();
@ -598,29 +599,27 @@ impl DisplaySnapshot {
let font_size = editor_style.text.font_size.to_pixels(*rem_size);
text_system
.layout_text(&line, font_size, &runs, None)
.unwrap()
.pop()
.unwrap()
.layout_line(&line, font_size, &runs)
.expect("we expect the font to be loaded because it's rendered by the editor")
}
pub fn x_for_point(
pub fn x_for_display_point(
&self,
display_point: DisplayPoint,
text_layout_details: &TextLayoutDetails,
) -> Pixels {
let layout_line = self.lay_out_line_for_row(display_point.row(), text_layout_details);
layout_line.x_for_index(display_point.column() as usize)
let line = self.layout_row(display_point.row(), text_layout_details);
line.x_for_index(display_point.column() as usize)
}
pub fn column_for_x(
pub fn display_column_for_x(
&self,
display_row: u32,
x_coordinate: Pixels,
text_layout_details: &TextLayoutDetails,
x: Pixels,
details: &TextLayoutDetails,
) -> u32 {
let layout_line = self.lay_out_line_for_row(display_row, text_layout_details);
layout_line.closest_index_for_x(x_coordinate) as u32
let layout_line = self.layout_row(display_row, details);
layout_line.closest_index_for_x(x) as u32
}
pub fn chars_at(