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Refactor line glyphs drawing methods

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This commit is contained in:
Kirill Bulatov 2023-05-05 00:47:01 +03:00
parent 4aaf44df94
commit 95bcd19020
1 changed files with 103 additions and 54 deletions
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149
crates/editor/src/element.rs
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@ -868,60 +868,18 @@ impl EditorElement {
}
if let Some(visible_text_bounds) = bounds.intersection(visible_bounds) {
let line_height = layout.position_map.line_height;
// Draw glyphs
for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
let row = start_row + ix as u32;
let line_y = row as f32 * line_height - scroll_top;
line_with_invisibles.line.paint(
draw_line_glyphs(
layout,
start_row,
scroll_top,
scene,
content_origin + vec2f(-scroll_left, line_y),
content_origin,
scroll_left,
visible_text_bounds,
layout.position_map.line_height,
cx,
selection_ranges,
visible_bounds,
);
let settings = cx.global::<Settings>();
let regions_to_hit = match settings
.editor_overrides
.show_invisibles
.or(settings.editor_defaults.show_invisibles)
.unwrap_or_default()
{
ShowInvisibles::None => continue,
ShowInvisibles::Selection => Some(&selection_ranges),
ShowInvisibles::All => None,
};
for invisible in &line_with_invisibles.invisibles {
let (&token_offset, invisible_symbol) = match invisible {
Invisible::Tab { line_start_offset } => {
(line_start_offset, &layout.tab_invisible)
}
Invisible::Whitespace { line_offset } => {
(line_offset, &layout.space_invisible)
}
};
let x_offset = line_with_invisibles.line.x_for_index(token_offset);
let invisible_offset =
(layout.position_map.em_width - invisible_symbol.width()).max(0.0) / 2.0;
let origin =
content_origin + vec2f(-scroll_left + x_offset + invisible_offset, line_y);
if let Some(regions_to_hit) = regions_to_hit {
let invisible_point = DisplayPoint::new(row, token_offset as u32);
if !regions_to_hit.iter().any(|region| {
region.start <= invisible_point && invisible_point < region.end
}) {
continue;
}
}
invisible_symbol.paint(scene, origin, visible_bounds, line_height, cx);
}
}
}
scene.paint_layer(Some(bounds), |scene| {
@ -1641,6 +1599,97 @@ impl EditorElement {
}
}
fn draw_line_glyphs(
layout: &mut LayoutState,
start_row: u32,
scroll_top: f32,
scene: &mut SceneBuilder,
content_origin: Vector2F,
scroll_left: f32,
visible_text_bounds: RectF,
cx: &mut ViewContext<Editor>,
selection_ranges: SmallVec<[Range<DisplayPoint>; 32]>,
visible_bounds: RectF,
) {
let line_height = layout.position_map.line_height;
for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
let row = start_row + ix as u32;
let line_y = row as f32 * line_height - scroll_top;
line_with_invisibles.line.paint(
scene,
content_origin + vec2f(-scroll_left, line_y),
visible_text_bounds,
line_height,
cx,
);
draw_invisibles(
cx,
&selection_ranges,
line_with_invisibles,
layout,
content_origin,
scroll_left,
line_y,
row,
scene,
visible_bounds,
line_height,
);
}
}
fn draw_invisibles(
cx: &mut ViewContext<Editor>,
selection_ranges: &SmallVec<[Range<DisplayPoint>; 32]>,
line_with_invisibles: &LineWithInvisibles,
layout: &LayoutState,
content_origin: Vector2F,
scroll_left: f32,
line_y: f32,
row: u32,
scene: &mut SceneBuilder,
visible_bounds: RectF,
line_height: f32,
) {
let settings = cx.global::<Settings>();
let regions_to_hit = match settings
.editor_overrides
.show_invisibles
.or(settings.editor_defaults.show_invisibles)
.unwrap_or_default()
{
ShowInvisibles::None => return,
ShowInvisibles::Selection => Some(selection_ranges),
ShowInvisibles::All => None,
};
for invisible in &line_with_invisibles.invisibles {
let (&token_offset, invisible_symbol) = match invisible {
Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
};
let x_offset = line_with_invisibles.line.x_for_index(token_offset);
let invisible_offset =
(layout.position_map.em_width - invisible_symbol.width()).max(0.0) / 2.0;
let origin = content_origin + vec2f(-scroll_left + x_offset + invisible_offset, line_y);
if let Some(regions_to_hit) = regions_to_hit {
let invisible_point = DisplayPoint::new(row, token_offset as u32);
if !regions_to_hit
.iter()
.any(|region| region.start <= invisible_point && invisible_point < region.end)
{
continue;
}
}
invisible_symbol.paint(scene, origin, visible_bounds, line_height, cx);
}
}
struct HighlightedChunk<'a> {
chunk: &'a str,
style: Option<HighlightStyle>,