1060 lines
36 KiB
Rust
1060 lines
36 KiB
Rust
mod block_map;
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mod fold_map;
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mod patch;
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mod tab_map;
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mod wrap_map;
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pub use block_map::{BlockDisposition, BlockId, BlockProperties, BufferRows, Chunks};
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use block_map::{BlockMap, BlockPoint};
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use buffer::Rope;
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use fold_map::{FoldMap, ToFoldPoint as _};
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use gpui::{fonts::FontId, AppContext, Entity, ModelContext, ModelHandle};
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use language::{Anchor, Buffer, Point, ToOffset, ToPoint};
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use std::{
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collections::{HashMap, HashSet},
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ops::Range,
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};
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use sum_tree::Bias;
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use tab_map::TabMap;
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use theme::{BlockStyle, SyntaxTheme};
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use wrap_map::WrapMap;
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pub trait ToDisplayPoint {
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fn to_display_point(&self, map: &DisplayMapSnapshot) -> DisplayPoint;
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}
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pub struct DisplayMap {
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buffer: ModelHandle<Buffer>,
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fold_map: FoldMap,
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tab_map: TabMap,
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wrap_map: ModelHandle<WrapMap>,
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block_map: BlockMap,
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}
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impl Entity for DisplayMap {
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type Event = ();
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}
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impl DisplayMap {
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pub fn new(
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buffer: ModelHandle<Buffer>,
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tab_size: usize,
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font_id: FontId,
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font_size: f32,
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wrap_width: Option<f32>,
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cx: &mut ModelContext<Self>,
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) -> Self {
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let (fold_map, snapshot) = FoldMap::new(buffer.clone(), cx);
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let (tab_map, snapshot) = TabMap::new(snapshot, tab_size);
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let (wrap_map, snapshot) = WrapMap::new(snapshot, font_id, font_size, wrap_width, cx);
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let block_map = BlockMap::new(buffer.clone(), snapshot);
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cx.observe(&wrap_map, |_, _, cx| cx.notify()).detach();
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DisplayMap {
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buffer,
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fold_map,
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tab_map,
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wrap_map,
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block_map,
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}
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}
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pub fn snapshot(&self, cx: &mut ModelContext<Self>) -> DisplayMapSnapshot {
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let (folds_snapshot, edits) = self.fold_map.read(cx);
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let (tabs_snapshot, edits) = self.tab_map.sync(folds_snapshot.clone(), edits);
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let (wraps_snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(tabs_snapshot.clone(), edits, cx));
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let blocks_snapshot = self.block_map.read(wraps_snapshot.clone(), edits, cx);
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DisplayMapSnapshot {
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buffer_snapshot: self.buffer.read(cx).snapshot(),
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folds_snapshot,
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tabs_snapshot,
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wraps_snapshot,
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blocks_snapshot,
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}
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}
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pub fn fold<T: ToOffset>(
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&mut self,
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ranges: impl IntoIterator<Item = Range<T>>,
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cx: &mut ModelContext<Self>,
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) {
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let (mut fold_map, snapshot, edits) = self.fold_map.write(cx);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.sync(&snapshot, edits, cx);
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let (snapshot, edits) = fold_map.fold(ranges, cx);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.sync(&snapshot, edits, cx);
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}
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pub fn unfold<T: ToOffset>(
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&mut self,
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ranges: impl IntoIterator<Item = Range<T>>,
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cx: &mut ModelContext<Self>,
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) {
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let (mut fold_map, snapshot, edits) = self.fold_map.write(cx);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.sync(&snapshot, edits, cx);
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let (snapshot, edits) = fold_map.unfold(ranges, cx);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.sync(&snapshot, edits, cx);
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}
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pub fn insert_blocks<P, T>(
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&mut self,
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blocks: impl IntoIterator<Item = BlockProperties<P, T>>,
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cx: &mut ModelContext<Self>,
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) -> Vec<BlockId>
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where
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P: ToOffset + Clone,
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T: Into<Rope> + Clone,
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{
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let (snapshot, edits) = self.fold_map.read(cx);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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let mut block_map = self.block_map.write(snapshot, edits, cx);
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block_map.insert(blocks, cx)
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}
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pub fn restyle_blocks<F>(&mut self, styles: HashMap<BlockId, Option<F>>)
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where
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F: 'static + Fn(&AppContext) -> BlockStyle,
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{
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self.block_map.restyle(styles);
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}
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pub fn remove_blocks(&mut self, ids: HashSet<BlockId>, cx: &mut ModelContext<Self>) {
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let (snapshot, edits) = self.fold_map.read(cx);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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let mut block_map = self.block_map.write(snapshot, edits, cx);
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block_map.remove(ids, cx);
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}
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pub fn set_font(&self, font_id: FontId, font_size: f32, cx: &mut ModelContext<Self>) {
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self.wrap_map
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.update(cx, |map, cx| map.set_font(font_id, font_size, cx));
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}
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pub fn set_wrap_width(&self, width: Option<f32>, cx: &mut ModelContext<Self>) -> bool {
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self.wrap_map
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.update(cx, |map, cx| map.set_wrap_width(width, cx))
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}
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#[cfg(test)]
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pub fn is_rewrapping(&self, cx: &gpui::AppContext) -> bool {
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self.wrap_map.read(cx).is_rewrapping()
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}
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}
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pub struct DisplayMapSnapshot {
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buffer_snapshot: language::Snapshot,
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folds_snapshot: fold_map::Snapshot,
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tabs_snapshot: tab_map::Snapshot,
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wraps_snapshot: wrap_map::Snapshot,
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blocks_snapshot: block_map::BlockSnapshot,
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}
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impl DisplayMapSnapshot {
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#[cfg(test)]
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pub fn fold_count(&self) -> usize {
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self.folds_snapshot.fold_count()
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}
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pub fn is_empty(&self) -> bool {
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self.buffer_snapshot.len() == 0
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}
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pub fn buffer_rows<'a>(&'a self, start_row: u32, cx: Option<&'a AppContext>) -> BufferRows<'a> {
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self.blocks_snapshot.buffer_rows(start_row, cx)
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}
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pub fn buffer_row_count(&self) -> u32 {
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self.buffer_snapshot.max_point().row + 1
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}
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pub fn prev_row_boundary(&self, mut display_point: DisplayPoint) -> (DisplayPoint, Point) {
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loop {
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*display_point.column_mut() = 0;
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let mut point = display_point.to_point(self);
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point.column = 0;
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let next_display_point = self.point_to_display_point(point, Bias::Left);
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if next_display_point == display_point {
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return (display_point, point);
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}
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display_point = next_display_point;
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}
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}
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pub fn next_row_boundary(&self, mut display_point: DisplayPoint) -> (DisplayPoint, Point) {
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loop {
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*display_point.column_mut() = self.line_len(display_point.row());
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let mut point = display_point.to_point(self);
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point.column = self.buffer_snapshot.line_len(point.row);
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let next_display_point = self.point_to_display_point(point, Bias::Right);
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if next_display_point == display_point {
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return (display_point, point);
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}
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display_point = next_display_point;
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}
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}
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fn point_to_display_point(&self, point: Point, bias: Bias) -> DisplayPoint {
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DisplayPoint(
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self.blocks_snapshot.to_block_point(
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self.wraps_snapshot.from_tab_point(
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self.tabs_snapshot
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.to_tab_point(point.to_fold_point(&self.folds_snapshot, bias)),
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),
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),
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)
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}
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fn display_point_to_point(&self, point: DisplayPoint, bias: Bias) -> Point {
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let unblocked_point = self.blocks_snapshot.to_wrap_point(point.0);
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let unwrapped_point = self.wraps_snapshot.to_tab_point(unblocked_point);
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let unexpanded_point = self.tabs_snapshot.to_fold_point(unwrapped_point, bias).0;
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unexpanded_point.to_buffer_point(&self.folds_snapshot)
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}
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pub fn max_point(&self) -> DisplayPoint {
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DisplayPoint(self.blocks_snapshot.max_point())
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}
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pub fn text_chunks(&self, display_row: u32) -> impl Iterator<Item = &str> {
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self.blocks_snapshot
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.chunks(display_row..self.max_point().row() + 1, None, None)
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.map(|h| h.text)
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}
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pub fn chunks<'a>(
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&'a self,
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display_rows: Range<u32>,
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theme: Option<&'a SyntaxTheme>,
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cx: &'a AppContext,
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) -> block_map::Chunks<'a> {
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self.blocks_snapshot.chunks(display_rows, theme, Some(cx))
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}
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pub fn chars_at<'a>(&'a self, point: DisplayPoint) -> impl Iterator<Item = char> + 'a {
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let mut column = 0;
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let mut chars = self.text_chunks(point.row()).flat_map(str::chars);
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while column < point.column() {
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if let Some(c) = chars.next() {
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column += c.len_utf8() as u32;
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} else {
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break;
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}
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}
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chars
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}
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pub fn column_to_chars(&self, display_row: u32, target: u32) -> u32 {
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let mut count = 0;
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let mut column = 0;
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for c in self.chars_at(DisplayPoint::new(display_row, 0)) {
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if column >= target {
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break;
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}
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count += 1;
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column += c.len_utf8() as u32;
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}
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count
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}
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pub fn column_from_chars(&self, display_row: u32, char_count: u32) -> u32 {
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let mut count = 0;
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let mut column = 0;
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for c in self.chars_at(DisplayPoint::new(display_row, 0)) {
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if c == '\n' || count >= char_count {
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break;
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}
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count += 1;
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column += c.len_utf8() as u32;
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}
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column
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}
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pub fn clip_point(&self, point: DisplayPoint, bias: Bias) -> DisplayPoint {
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DisplayPoint(self.blocks_snapshot.clip_point(point.0, bias))
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}
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pub fn folds_in_range<'a, T>(
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&'a self,
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range: Range<T>,
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) -> impl Iterator<Item = &'a Range<Anchor>>
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where
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T: ToOffset,
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{
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self.folds_snapshot.folds_in_range(range)
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}
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pub fn intersects_fold<T: ToOffset>(&self, offset: T) -> bool {
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self.folds_snapshot.intersects_fold(offset)
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}
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pub fn is_line_folded(&self, display_row: u32) -> bool {
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let block_point = BlockPoint(Point::new(display_row, 0));
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let wrap_point = self.blocks_snapshot.to_wrap_point(block_point);
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let tab_point = self.wraps_snapshot.to_tab_point(wrap_point);
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self.folds_snapshot.is_line_folded(tab_point.row())
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}
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pub fn is_block_line(&self, display_row: u32) -> bool {
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self.blocks_snapshot.is_block_line(display_row)
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}
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pub fn soft_wrap_indent(&self, display_row: u32) -> Option<u32> {
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let wrap_row = self
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.blocks_snapshot
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.to_wrap_point(BlockPoint::new(display_row, 0))
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.row();
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self.wraps_snapshot.soft_wrap_indent(wrap_row)
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}
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pub fn text(&self) -> String {
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self.text_chunks(0).collect()
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}
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pub fn line(&self, display_row: u32) -> String {
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let mut result = String::new();
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for chunk in self.text_chunks(display_row) {
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if let Some(ix) = chunk.find('\n') {
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result.push_str(&chunk[0..ix]);
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break;
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} else {
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result.push_str(chunk);
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}
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}
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result
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}
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pub fn line_indent(&self, display_row: u32) -> (u32, bool) {
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let mut indent = 0;
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let mut is_blank = true;
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for c in self.chars_at(DisplayPoint::new(display_row, 0)) {
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if c == ' ' {
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indent += 1;
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} else {
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is_blank = c == '\n';
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break;
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}
|
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}
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(indent, is_blank)
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}
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pub fn line_len(&self, row: u32) -> u32 {
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self.blocks_snapshot.line_len(row)
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}
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pub fn longest_row(&self) -> u32 {
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self.blocks_snapshot.longest_row()
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}
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}
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#[derive(Copy, Clone, Debug, Default, Eq, Ord, PartialOrd, PartialEq)]
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pub struct DisplayPoint(BlockPoint);
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|
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impl DisplayPoint {
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pub fn new(row: u32, column: u32) -> Self {
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Self(BlockPoint(Point::new(row, column)))
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}
|
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|
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pub fn zero() -> Self {
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Self::new(0, 0)
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}
|
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|
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#[cfg(test)]
|
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pub fn is_zero(&self) -> bool {
|
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self.0.is_zero()
|
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}
|
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|
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pub fn row(self) -> u32 {
|
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self.0.row
|
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}
|
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|
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pub fn column(self) -> u32 {
|
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self.0.column
|
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}
|
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|
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pub fn row_mut(&mut self) -> &mut u32 {
|
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&mut self.0.row
|
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}
|
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|
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pub fn column_mut(&mut self) -> &mut u32 {
|
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&mut self.0.column
|
||
}
|
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|
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pub fn to_point(self, map: &DisplayMapSnapshot) -> Point {
|
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map.display_point_to_point(self, Bias::Left)
|
||
}
|
||
|
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pub fn to_offset(self, map: &DisplayMapSnapshot, bias: Bias) -> usize {
|
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let unblocked_point = map.blocks_snapshot.to_wrap_point(self.0);
|
||
let unwrapped_point = map.wraps_snapshot.to_tab_point(unblocked_point);
|
||
let unexpanded_point = map.tabs_snapshot.to_fold_point(unwrapped_point, bias).0;
|
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unexpanded_point.to_buffer_offset(&map.folds_snapshot)
|
||
}
|
||
}
|
||
|
||
impl ToDisplayPoint for Point {
|
||
fn to_display_point(&self, map: &DisplayMapSnapshot) -> DisplayPoint {
|
||
map.point_to_display_point(*self, Bias::Left)
|
||
}
|
||
}
|
||
|
||
impl ToDisplayPoint for Anchor {
|
||
fn to_display_point(&self, map: &DisplayMapSnapshot) -> DisplayPoint {
|
||
self.to_point(&map.buffer_snapshot).to_display_point(map)
|
||
}
|
||
}
|
||
|
||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||
pub enum DisplayRow {
|
||
Buffer(u32),
|
||
Block(BlockId, Option<BlockStyle>),
|
||
Wrap,
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod tests {
|
||
use super::*;
|
||
use crate::{movement, test::*};
|
||
use gpui::{color::Color, MutableAppContext};
|
||
use language::{Language, LanguageConfig, RandomCharIter, SelectionGoal};
|
||
use rand::{prelude::StdRng, Rng};
|
||
use std::{env, sync::Arc};
|
||
use theme::SyntaxTheme;
|
||
use Bias::*;
|
||
|
||
#[gpui::test(iterations = 100)]
|
||
async fn test_random(mut cx: gpui::TestAppContext, mut rng: StdRng) {
|
||
cx.foreground().set_block_on_ticks(0..=50);
|
||
cx.foreground().forbid_parking();
|
||
let operations = env::var("OPERATIONS")
|
||
.map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
|
||
.unwrap_or(10);
|
||
|
||
let font_cache = cx.font_cache().clone();
|
||
let tab_size = rng.gen_range(1..=4);
|
||
let family_id = font_cache.load_family(&["Helvetica"]).unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
let max_wrap_width = 300.0;
|
||
let mut wrap_width = if rng.gen_bool(0.1) {
|
||
None
|
||
} else {
|
||
Some(rng.gen_range(0.0..=max_wrap_width))
|
||
};
|
||
|
||
log::info!("tab size: {}", tab_size);
|
||
log::info!("wrap width: {:?}", wrap_width);
|
||
|
||
let buffer = cx.add_model(|cx| {
|
||
let len = rng.gen_range(0..10);
|
||
let text = RandomCharIter::new(&mut rng).take(len).collect::<String>();
|
||
Buffer::new(0, text, cx)
|
||
});
|
||
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(buffer.clone(), tab_size, font_id, font_size, wrap_width, cx)
|
||
});
|
||
let (_observer, notifications) = Observer::new(&map, &mut cx);
|
||
let mut fold_count = 0;
|
||
|
||
for _i in 0..operations {
|
||
match rng.gen_range(0..100) {
|
||
0..=19 => {
|
||
wrap_width = if rng.gen_bool(0.2) {
|
||
None
|
||
} else {
|
||
Some(rng.gen_range(0.0..=max_wrap_width))
|
||
};
|
||
log::info!("setting wrap width to {:?}", wrap_width);
|
||
map.update(&mut cx, |map, cx| map.set_wrap_width(wrap_width, cx));
|
||
}
|
||
20..=80 => {
|
||
let mut ranges = Vec::new();
|
||
for _ in 0..rng.gen_range(1..=3) {
|
||
buffer.read_with(&cx, |buffer, _| {
|
||
let end = buffer.clip_offset(rng.gen_range(0..=buffer.len()), Right);
|
||
let start = buffer.clip_offset(rng.gen_range(0..=end), Left);
|
||
ranges.push(start..end);
|
||
});
|
||
}
|
||
|
||
if rng.gen() && fold_count > 0 {
|
||
log::info!("unfolding ranges: {:?}", ranges);
|
||
map.update(&mut cx, |map, cx| {
|
||
map.unfold(ranges, cx);
|
||
});
|
||
} else {
|
||
log::info!("folding ranges: {:?}", ranges);
|
||
map.update(&mut cx, |map, cx| {
|
||
map.fold(ranges, cx);
|
||
});
|
||
}
|
||
}
|
||
_ => {
|
||
buffer.update(&mut cx, |buffer, _| buffer.randomly_edit(&mut rng, 5));
|
||
}
|
||
}
|
||
|
||
if map.read_with(&cx, |map, cx| map.is_rewrapping(cx)) {
|
||
notifications.recv().await.unwrap();
|
||
}
|
||
|
||
let snapshot = map.update(&mut cx, |map, cx| map.snapshot(cx));
|
||
fold_count = snapshot.fold_count();
|
||
log::info!("buffer text: {:?}", buffer.read_with(&cx, |b, _| b.text()));
|
||
log::info!("display text: {:?}", snapshot.text());
|
||
|
||
// Line boundaries
|
||
for _ in 0..5 {
|
||
let row = rng.gen_range(0..=snapshot.max_point().row());
|
||
let column = rng.gen_range(0..=snapshot.line_len(row));
|
||
let point = snapshot.clip_point(DisplayPoint::new(row, column), Left);
|
||
|
||
let (prev_display_bound, prev_buffer_bound) = snapshot.prev_row_boundary(point);
|
||
let (next_display_bound, next_buffer_bound) = snapshot.next_row_boundary(point);
|
||
|
||
assert!(prev_display_bound <= point);
|
||
assert!(next_display_bound >= point);
|
||
assert_eq!(prev_buffer_bound.column, 0);
|
||
assert_eq!(prev_display_bound.column(), 0);
|
||
if next_display_bound < snapshot.max_point() {
|
||
assert_eq!(
|
||
buffer
|
||
.read_with(&cx, |buffer, _| buffer.chars_at(next_buffer_bound).next()),
|
||
Some('\n')
|
||
)
|
||
}
|
||
|
||
assert_eq!(
|
||
prev_display_bound,
|
||
prev_buffer_bound.to_display_point(&snapshot),
|
||
"row boundary before {:?}. reported buffer row boundary: {:?}",
|
||
point,
|
||
prev_buffer_bound
|
||
);
|
||
assert_eq!(
|
||
next_display_bound,
|
||
next_buffer_bound.to_display_point(&snapshot),
|
||
"display row boundary after {:?}. reported buffer row boundary: {:?}",
|
||
point,
|
||
next_buffer_bound
|
||
);
|
||
assert_eq!(
|
||
prev_buffer_bound,
|
||
prev_display_bound.to_point(&snapshot),
|
||
"row boundary before {:?}. reported display row boundary: {:?}",
|
||
point,
|
||
prev_display_bound
|
||
);
|
||
assert_eq!(
|
||
next_buffer_bound,
|
||
next_display_bound.to_point(&snapshot),
|
||
"row boundary after {:?}. reported display row boundary: {:?}",
|
||
point,
|
||
next_display_bound
|
||
);
|
||
}
|
||
|
||
// Movement
|
||
for _ in 0..5 {
|
||
let row = rng.gen_range(0..=snapshot.max_point().row());
|
||
let column = rng.gen_range(0..=snapshot.line_len(row));
|
||
let point = snapshot.clip_point(DisplayPoint::new(row, column), Left);
|
||
|
||
log::info!("Moving from point {:?}", point);
|
||
|
||
let moved_right = movement::right(&snapshot, point).unwrap();
|
||
log::info!("Right {:?}", moved_right);
|
||
if point < snapshot.max_point() {
|
||
assert!(moved_right > point);
|
||
if point.column() == snapshot.line_len(point.row())
|
||
|| snapshot.soft_wrap_indent(point.row()).is_some()
|
||
&& point.column() == snapshot.line_len(point.row()) - 1
|
||
{
|
||
assert!(moved_right.row() > point.row());
|
||
}
|
||
} else {
|
||
assert_eq!(moved_right, point);
|
||
}
|
||
|
||
let moved_left = movement::left(&snapshot, point).unwrap();
|
||
log::info!("Left {:?}", moved_left);
|
||
if !point.is_zero() {
|
||
assert!(moved_left < point);
|
||
if point.column() == 0 {
|
||
assert!(moved_left.row() < point.row());
|
||
}
|
||
} else {
|
||
assert!(moved_left.is_zero());
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_soft_wraps(cx: &mut MutableAppContext) {
|
||
cx.foreground().set_block_on_ticks(usize::MAX..=usize::MAX);
|
||
cx.foreground().forbid_parking();
|
||
|
||
let font_cache = cx.font_cache();
|
||
|
||
let tab_size = 4;
|
||
let family_id = font_cache.load_family(&["Helvetica"]).unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 12.0;
|
||
let wrap_width = Some(64.);
|
||
|
||
let text = "one two three four five\nsix seven eight";
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, text.to_string(), cx));
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(buffer.clone(), tab_size, font_id, font_size, wrap_width, cx)
|
||
});
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(
|
||
snapshot.text_chunks(0).collect::<String>(),
|
||
"one two \nthree four \nfive\nsix seven \neight"
|
||
);
|
||
assert_eq!(
|
||
snapshot.clip_point(DisplayPoint::new(0, 8), Bias::Left),
|
||
DisplayPoint::new(0, 7)
|
||
);
|
||
assert_eq!(
|
||
snapshot.clip_point(DisplayPoint::new(0, 8), Bias::Right),
|
||
DisplayPoint::new(1, 0)
|
||
);
|
||
assert_eq!(
|
||
movement::right(&snapshot, DisplayPoint::new(0, 7)).unwrap(),
|
||
DisplayPoint::new(1, 0)
|
||
);
|
||
assert_eq!(
|
||
movement::left(&snapshot, DisplayPoint::new(1, 0)).unwrap(),
|
||
DisplayPoint::new(0, 7)
|
||
);
|
||
assert_eq!(
|
||
movement::up(&snapshot, DisplayPoint::new(1, 10), SelectionGoal::None).unwrap(),
|
||
(DisplayPoint::new(0, 7), SelectionGoal::Column(10))
|
||
);
|
||
assert_eq!(
|
||
movement::down(
|
||
&snapshot,
|
||
DisplayPoint::new(0, 7),
|
||
SelectionGoal::Column(10)
|
||
)
|
||
.unwrap(),
|
||
(DisplayPoint::new(1, 10), SelectionGoal::Column(10))
|
||
);
|
||
assert_eq!(
|
||
movement::down(
|
||
&snapshot,
|
||
DisplayPoint::new(1, 10),
|
||
SelectionGoal::Column(10)
|
||
)
|
||
.unwrap(),
|
||
(DisplayPoint::new(2, 4), SelectionGoal::Column(10))
|
||
);
|
||
|
||
buffer.update(cx, |buffer, cx| {
|
||
let ix = buffer.text().find("seven").unwrap();
|
||
buffer.edit(vec![ix..ix], "and ", cx);
|
||
});
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(
|
||
snapshot.text_chunks(1).collect::<String>(),
|
||
"three four \nfive\nsix and \nseven eight"
|
||
);
|
||
|
||
// Re-wrap on font size changes
|
||
map.update(cx, |map, cx| map.set_font(font_id, font_size + 3., cx));
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(
|
||
snapshot.text_chunks(1).collect::<String>(),
|
||
"three \nfour five\nsix and \nseven \neight"
|
||
)
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_text_chunks(cx: &mut gpui::MutableAppContext) {
|
||
let text = sample_text(6, 6);
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, text, cx));
|
||
let tab_size = 4;
|
||
let family_id = cx.font_cache().load_family(&["Helvetica"]).unwrap();
|
||
let font_id = cx
|
||
.font_cache()
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(buffer.clone(), tab_size, font_id, font_size, None, cx)
|
||
});
|
||
buffer.update(cx, |buffer, cx| {
|
||
buffer.edit(
|
||
vec![
|
||
Point::new(1, 0)..Point::new(1, 0),
|
||
Point::new(1, 1)..Point::new(1, 1),
|
||
Point::new(2, 1)..Point::new(2, 1),
|
||
],
|
||
"\t",
|
||
cx,
|
||
)
|
||
});
|
||
|
||
assert_eq!(
|
||
map.update(cx, |map, cx| map.snapshot(cx))
|
||
.text_chunks(1)
|
||
.collect::<String>()
|
||
.lines()
|
||
.next(),
|
||
Some(" b bbbbb")
|
||
);
|
||
assert_eq!(
|
||
map.update(cx, |map, cx| map.snapshot(cx))
|
||
.text_chunks(2)
|
||
.collect::<String>()
|
||
.lines()
|
||
.next(),
|
||
Some("c ccccc")
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
async fn test_chunks(mut cx: gpui::TestAppContext) {
|
||
use unindent::Unindent as _;
|
||
|
||
let text = r#"
|
||
fn outer() {}
|
||
|
||
mod module {
|
||
fn inner() {}
|
||
}"#
|
||
.unindent();
|
||
|
||
let theme = SyntaxTheme::new(vec![
|
||
("mod.body".to_string(), Color::red().into()),
|
||
("fn.name".to_string(), Color::blue().into()),
|
||
]);
|
||
let lang = Arc::new(
|
||
Language::new(
|
||
LanguageConfig {
|
||
name: "Test".to_string(),
|
||
path_suffixes: vec![".test".to_string()],
|
||
..Default::default()
|
||
},
|
||
tree_sitter_rust::language(),
|
||
)
|
||
.with_highlights_query(
|
||
r#"
|
||
(mod_item name: (identifier) body: _ @mod.body)
|
||
(function_item name: (identifier) @fn.name)
|
||
"#,
|
||
)
|
||
.unwrap(),
|
||
);
|
||
lang.set_theme(&theme);
|
||
|
||
let buffer =
|
||
cx.add_model(|cx| Buffer::new(0, text, cx).with_language(Some(lang), None, cx));
|
||
buffer.condition(&cx, |buf, _| !buf.is_parsing()).await;
|
||
|
||
let tab_size = 2;
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache.load_family(&["Helvetica"]).unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
|
||
let map =
|
||
cx.add_model(|cx| DisplayMap::new(buffer, tab_size, font_id, font_size, None, cx));
|
||
assert_eq!(
|
||
cx.update(|cx| chunks(0..5, &map, &theme, cx)),
|
||
vec![
|
||
("fn ".to_string(), None),
|
||
("outer".to_string(), Some(Color::blue())),
|
||
("() {}\n\nmod module ".to_string(), None),
|
||
("{\n fn ".to_string(), Some(Color::red())),
|
||
("inner".to_string(), Some(Color::blue())),
|
||
("() {}\n}".to_string(), Some(Color::red())),
|
||
]
|
||
);
|
||
assert_eq!(
|
||
cx.update(|cx| chunks(3..5, &map, &theme, cx)),
|
||
vec![
|
||
(" fn ".to_string(), Some(Color::red())),
|
||
("inner".to_string(), Some(Color::blue())),
|
||
("() {}\n}".to_string(), Some(Color::red())),
|
||
]
|
||
);
|
||
|
||
map.update(&mut cx, |map, cx| {
|
||
map.fold(vec![Point::new(0, 6)..Point::new(3, 2)], cx)
|
||
});
|
||
assert_eq!(
|
||
cx.update(|cx| chunks(0..2, &map, &theme, cx)),
|
||
vec![
|
||
("fn ".to_string(), None),
|
||
("out".to_string(), Some(Color::blue())),
|
||
("…".to_string(), None),
|
||
(" fn ".to_string(), Some(Color::red())),
|
||
("inner".to_string(), Some(Color::blue())),
|
||
("() {}\n}".to_string(), Some(Color::red())),
|
||
]
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
async fn test_chunks_with_soft_wrapping(mut cx: gpui::TestAppContext) {
|
||
use unindent::Unindent as _;
|
||
|
||
cx.foreground().set_block_on_ticks(usize::MAX..=usize::MAX);
|
||
|
||
let text = r#"
|
||
fn outer() {}
|
||
|
||
mod module {
|
||
fn inner() {}
|
||
}"#
|
||
.unindent();
|
||
|
||
let theme = SyntaxTheme::new(vec![
|
||
("mod.body".to_string(), Color::red().into()),
|
||
("fn.name".to_string(), Color::blue().into()),
|
||
]);
|
||
let lang = Arc::new(
|
||
Language::new(
|
||
LanguageConfig {
|
||
name: "Test".to_string(),
|
||
path_suffixes: vec![".test".to_string()],
|
||
..Default::default()
|
||
},
|
||
tree_sitter_rust::language(),
|
||
)
|
||
.with_highlights_query(
|
||
r#"
|
||
(mod_item name: (identifier) body: _ @mod.body)
|
||
(function_item name: (identifier) @fn.name)
|
||
"#,
|
||
)
|
||
.unwrap(),
|
||
);
|
||
lang.set_theme(&theme);
|
||
|
||
let buffer =
|
||
cx.add_model(|cx| Buffer::new(0, text, cx).with_language(Some(lang), None, cx));
|
||
buffer.condition(&cx, |buf, _| !buf.is_parsing()).await;
|
||
|
||
let font_cache = cx.font_cache();
|
||
|
||
let tab_size = 4;
|
||
let family_id = font_cache.load_family(&["Courier"]).unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 16.0;
|
||
|
||
let map = cx
|
||
.add_model(|cx| DisplayMap::new(buffer, tab_size, font_id, font_size, Some(40.0), cx));
|
||
assert_eq!(
|
||
cx.update(|cx| chunks(0..5, &map, &theme, cx)),
|
||
[
|
||
("fn \n".to_string(), None),
|
||
("oute\nr".to_string(), Some(Color::blue())),
|
||
("() \n{}\n\n".to_string(), None),
|
||
]
|
||
);
|
||
assert_eq!(
|
||
cx.update(|cx| chunks(3..5, &map, &theme, cx)),
|
||
[("{}\n\n".to_string(), None)]
|
||
);
|
||
|
||
map.update(&mut cx, |map, cx| {
|
||
map.fold(vec![Point::new(0, 6)..Point::new(3, 2)], cx)
|
||
});
|
||
assert_eq!(
|
||
cx.update(|cx| chunks(1..4, &map, &theme, cx)),
|
||
[
|
||
("out".to_string(), Some(Color::blue())),
|
||
("…\n".to_string(), None),
|
||
(" \nfn ".to_string(), Some(Color::red())),
|
||
("i\n".to_string(), Some(Color::blue()))
|
||
]
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_clip_point(cx: &mut gpui::MutableAppContext) {
|
||
use Bias::{Left, Right};
|
||
|
||
let text = "\n'a', 'α',\t'✋',\t'❎', '🍐'\n";
|
||
let display_text = "\n'a', 'α', '✋', '❎', '🍐'\n";
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, text, cx));
|
||
|
||
let tab_size = 4;
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache.load_family(&["Helvetica"]).unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(buffer.clone(), tab_size, font_id, font_size, None, cx)
|
||
});
|
||
let map = map.update(cx, |map, cx| map.snapshot(cx));
|
||
|
||
assert_eq!(map.text(), display_text);
|
||
for (input_column, bias, output_column) in vec![
|
||
("'a', '".len(), Left, "'a', '".len()),
|
||
("'a', '".len() + 1, Left, "'a', '".len()),
|
||
("'a', '".len() + 1, Right, "'a', 'α".len()),
|
||
("'a', 'α', ".len(), Left, "'a', 'α',".len()),
|
||
("'a', 'α', ".len(), Right, "'a', 'α', ".len()),
|
||
("'a', 'α', '".len() + 1, Left, "'a', 'α', '".len()),
|
||
("'a', 'α', '".len() + 1, Right, "'a', 'α', '✋".len()),
|
||
("'a', 'α', '✋',".len(), Right, "'a', 'α', '✋',".len()),
|
||
("'a', 'α', '✋', ".len(), Left, "'a', 'α', '✋',".len()),
|
||
(
|
||
"'a', 'α', '✋', ".len(),
|
||
Right,
|
||
"'a', 'α', '✋', ".len(),
|
||
),
|
||
] {
|
||
assert_eq!(
|
||
map.clip_point(DisplayPoint::new(1, input_column as u32), bias),
|
||
DisplayPoint::new(1, output_column as u32),
|
||
"clip_point(({}, {}))",
|
||
1,
|
||
input_column,
|
||
);
|
||
}
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_tabs_with_multibyte_chars(cx: &mut gpui::MutableAppContext) {
|
||
let text = "✅\t\tα\nβ\t\n🏀β\t\tγ";
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, text, cx));
|
||
let tab_size = 4;
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache.load_family(&["Helvetica"]).unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(buffer.clone(), tab_size, font_id, font_size, None, cx)
|
||
});
|
||
let map = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(map.text(), "✅ α\nβ \n🏀β γ");
|
||
assert_eq!(
|
||
map.text_chunks(0).collect::<String>(),
|
||
"✅ α\nβ \n🏀β γ"
|
||
);
|
||
assert_eq!(map.text_chunks(1).collect::<String>(), "β \n🏀β γ");
|
||
assert_eq!(map.text_chunks(2).collect::<String>(), "🏀β γ");
|
||
|
||
let point = Point::new(0, "✅\t\t".len() as u32);
|
||
let display_point = DisplayPoint::new(0, "✅ ".len() as u32);
|
||
assert_eq!(point.to_display_point(&map), display_point);
|
||
assert_eq!(display_point.to_point(&map), point);
|
||
|
||
let point = Point::new(1, "β\t".len() as u32);
|
||
let display_point = DisplayPoint::new(1, "β ".len() as u32);
|
||
assert_eq!(point.to_display_point(&map), display_point);
|
||
assert_eq!(display_point.to_point(&map), point,);
|
||
|
||
let point = Point::new(2, "🏀β\t\t".len() as u32);
|
||
let display_point = DisplayPoint::new(2, "🏀β ".len() as u32);
|
||
assert_eq!(point.to_display_point(&map), display_point);
|
||
assert_eq!(display_point.to_point(&map), point,);
|
||
|
||
// Display points inside of expanded tabs
|
||
assert_eq!(
|
||
DisplayPoint::new(0, "✅ ".len() as u32).to_point(&map),
|
||
Point::new(0, "✅\t".len() as u32),
|
||
);
|
||
assert_eq!(
|
||
DisplayPoint::new(0, "✅ ".len() as u32).to_point(&map),
|
||
Point::new(0, "✅".len() as u32),
|
||
);
|
||
|
||
// Clipping display points inside of multi-byte characters
|
||
assert_eq!(
|
||
map.clip_point(DisplayPoint::new(0, "✅".len() as u32 - 1), Left),
|
||
DisplayPoint::new(0, 0)
|
||
);
|
||
assert_eq!(
|
||
map.clip_point(DisplayPoint::new(0, "✅".len() as u32 - 1), Bias::Right),
|
||
DisplayPoint::new(0, "✅".len() as u32)
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_max_point(cx: &mut gpui::MutableAppContext) {
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, "aaa\n\t\tbbb", cx));
|
||
let tab_size = 4;
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache.load_family(&["Helvetica"]).unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(buffer.clone(), tab_size, font_id, font_size, None, cx)
|
||
});
|
||
assert_eq!(
|
||
map.update(cx, |map, cx| map.snapshot(cx)).max_point(),
|
||
DisplayPoint::new(1, 11)
|
||
)
|
||
}
|
||
|
||
fn chunks<'a>(
|
||
rows: Range<u32>,
|
||
map: &ModelHandle<DisplayMap>,
|
||
theme: &'a SyntaxTheme,
|
||
cx: &mut MutableAppContext,
|
||
) -> Vec<(String, Option<Color>)> {
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
let mut chunks: Vec<(String, Option<Color>)> = Vec::new();
|
||
for chunk in snapshot.chunks(rows, Some(theme), cx) {
|
||
let color = chunk.highlight_style.map(|s| s.color);
|
||
if let Some((last_chunk, last_color)) = chunks.last_mut() {
|
||
if color == *last_color {
|
||
last_chunk.push_str(chunk.text);
|
||
} else {
|
||
chunks.push((chunk.text.to_string(), color));
|
||
}
|
||
} else {
|
||
chunks.push((chunk.text.to_string(), color));
|
||
}
|
||
}
|
||
chunks
|
||
}
|
||
}
|