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Limit shape.setBounds, shape.resize and shape.move size and position

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Found while testing crates/engine/src/cmd/shape.rs:215 (set_bounds; shape.resize at :~183 and shape.move at :~171 have the same problem)

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-18 10:19:53 +00:00
co-authored by Claude Haiku 5.5
parent 22db9261f9
commit 3e729bbf08
2 changed files with 43 additions and 6 deletions
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crates/engine/src/cmd/shape.rs
+18 -6
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@@ -169,13 +169,23 @@ pub fn specs() -> Vec<CommandSpec> {
]
}
/// Keeps a side length in `0..=MAX_PT` so a huge value cannot exhaust memory when rendering.
fn clamp_side(v: f64) -> f64 {
if v.is_finite() { v.clamp(0.0, MAX_PT) } else { 0.0 }
}
/// Keeps a coordinate within `±POS_LIMIT`.
fn clamp_pos(v: f64) -> f64 {
if v.is_finite() { v.clamp(-POS_LIMIT, POS_LIMIT) } else { 0.0 }
}
fn move_by(s: &mut Session, p: &Value) -> Result<Value> {
let (dx, dy) = (f64_param(p, "dx"), f64_param(p, "dy"));
let (ax, ay) = (f64_param(p, "x"), f64_param(p, "y"));
edit_geometry(s, p, "shape.move", |sh| {
if let Some(x) = sh.xfrm.as_mut() {
x.x = ax.unwrap_or(x.x) + dx.unwrap_or(0.0);
x.y = ay.unwrap_or(x.y) + dy.unwrap_or(0.0);
x.x = clamp_pos(ax.unwrap_or(x.x) + dx.unwrap_or(0.0));
x.y = clamp_pos(ay.unwrap_or(x.y) + dy.unwrap_or(0.0));
}
Ok(())
})
@@ -202,6 +212,8 @@ fn resize(s: &mut Session, p: &Value) -> Result<Value> {
x.h = h.unwrap_or(x.h);
}
}
x.w = clamp_side(x.w);
x.h = clamp_side(x.h);
// Rotated shapes resize about their centre; others keep the top-left.
if x.rot != 0.0 {
x.x = cx - x.w / 2.0;
@@ -215,10 +227,10 @@ fn resize(s: &mut Session, p: &Value) -> Result<Value> {
fn set_bounds(s: &mut Session, p: &Value) -> Result<Value> {
edit_geometry(s, p, "shape.setBounds", |sh| {
if let Some(x) = sh.xfrm.as_mut() {
x.x = f64_param(p, "x").unwrap_or(x.x);
x.y = f64_param(p, "y").unwrap_or(x.y);
x.w = f64_param(p, "w").unwrap_or(x.w).max(0.0);
x.h = f64_param(p, "h").unwrap_or(x.h).max(0.0);
x.x = clamp_pos(f64_param(p, "x").unwrap_or(x.x));
x.y = clamp_pos(f64_param(p, "y").unwrap_or(x.y));
x.w = clamp_side(f64_param(p, "w").unwrap_or(x.w));
x.h = clamp_side(f64_param(p, "h").unwrap_or(x.h));
}
Ok(())
})