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engine: move the ink extension out of drag

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This commit is contained in:
Dylan M. Taylor
2026-11-03 13:49:05 +00:00
parent ebc171be57
commit 30c9cf4c49
1 changed files with 13 additions and 9 deletions
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crates/engine/src/tools/drag.rs
+13 -9
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@@ -18,16 +18,8 @@ pub(crate) const MAX_GESTURE_POINTS: usize = 20_000;
impl Session {
/// Update the active drag interaction using the pointer position and modifiers.
pub(super) fn drag(&mut self, p: Point, mods: Mods, tol: f64) -> Result<Value> {
// Ink grows by one sample per move: extend it (and its preview) in place rather than
// copying the whole stroke twice per event.
if matches!(self.tool.drag, Some(Drag::Ink { .. })) {
let sample = self.ink_sample(p);
if let Some(Drag::Ink { points }) = self.tool.drag.as_mut()
&& points.len() < MAX_GESTURE_POINTS
{
points.push(sample);
self.tool.ink_preview.push(sample);
}
self.extend_ink(p);
return Ok(Value::Null);
}
let Some(drag) = self.tool.drag.clone() else { return Ok(Value::Null) };
@@ -212,6 +204,18 @@ impl Session {
Ok(Value::Null)
}
/// Ink grows by one sample per move: extend it (and its preview) in place rather than
/// copying the whole stroke twice per event, up to [`MAX_GESTURE_POINTS`].
fn extend_ink(&mut self, p: Point) {
let sample = self.ink_sample(p);
if let Some(Drag::Ink { points }) = self.tool.drag.as_mut()
&& points.len() < MAX_GESTURE_POINTS
{
points.push(sample);
self.tool.ink_preview.push(sample);
}
}
fn drag_move(&mut self, drag: MoveDrag, p: Point, mods: Mods, tol: f64) -> Result<Value> {
let MoveDrag { ids, start, origs, moved, duplicate, enter_text } = drag;
let mut d = p - start;