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render character under block cursor

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This commit is contained in:
Keith Simmons 2022-03-10 13:16:31 -08:00
parent 0d42c85195
commit eddb089f27
3 changed files with 66 additions and 19 deletions
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20
crates/gpui/src/text_layout.rs
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@ -186,7 +186,7 @@ pub struct Run {
pub glyphs: Vec<Glyph>,
}
#[derive(Debug)]
#[derive(Clone, Debug)]
pub struct Glyph {
pub id: GlyphId,
pub position: Vector2F,
@ -210,10 +210,14 @@ impl Line {
self.layout.width
}
pub fn font_size(&self) -> f32 {
self.layout.font_size
}
pub fn x_for_index(&self, index: usize) -> f32 {
for run in &self.layout.runs {
for glyph in &run.glyphs {
if glyph.index == index {
if glyph.index >= index {
return glyph.position.x();
}
}
@ -221,6 +225,18 @@ impl Line {
self.layout.width
}
pub fn font_for_index(&self, index: usize) -> Option<FontId> {
for run in &self.layout.runs {
for glyph in &run.glyphs {
if glyph.index >= index {
return Some(run.font_id);
}
}
}
None
}
pub fn index_for_x(&self, x: f32) -> Option<usize> {
if x >= self.layout.width {
None