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Render links as a curve instead of a straight line

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This commit is contained in:
Tom A. Wagner
2020-12-17 11:27:06 +01:00
parent 82c9a5bd4d
commit 438383e92f
1 changed files with 10 additions and 5 deletions
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15
src/view/graph_view.rs
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@@ -60,13 +60,18 @@ fn draw(
for link in links.borrow().values() { for link in links.borrow().values() {
let (from_alloc, to_alloc) = get_allocs(nodes.clone(), link); let (from_alloc, to_alloc) = get_allocs(nodes.clone(), link);
let from_x: f64 = (from_alloc.x + from_alloc.width).into();
let from_y: f64 = (from_alloc.y + (from_alloc.height / 2)).into();
cr.move_to( cr.move_to(
(from_alloc.x + from_alloc.width).into(), from_x, from_y
(from_alloc.y + (from_alloc.height / 2)).into(),
); );
cr.line_to(
to_alloc.x.into(), let to_x: f64 = to_alloc.x.into();
(to_alloc.y + (to_alloc.height / 2)).into(), let to_y: f64 = (to_alloc.y + (to_alloc.height / 2)).into();
cr.curve_to(
from_x + 75.0, from_y,
to_x - 75.0, to_y,
to_x, to_y
); );
cr.stroke(); cr.stroke();