LR-CROP-STRAIGHTEN: a move or resize drag keeps its pointer past the box

The box stops at the photo's edge, so a move or resize drag can carry
the pointer outside it, where the rotation glyph replaced the move or
resize cursor and said the drag rotated. The drag's own cursor now
holds until it ends.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/ui-egui/src/panels/detail.rs

@@ -1254,12 +1254,19 @@ fn crop_overlay(app: &mut LightcraftApp, ui: &mut egui::Ui, resp: &egui::Respons
     // with ⌘ held a drag draws a level line (the straighten crosshair, set above), not a rotation
     let straightening = !rotating && ui.input(|i| i.modifiers.command);
     if let Some(hq) = pointer.filter(|_| !straightening) {
-        let near = handles.iter().position(|h| h.distance(hq) < 12.0).filter(|_| !rotating);
+        // a move or resize drag keeps its pointer wherever it goes, even past the box
+        let held = match app.gesture {
+            Some(Gesture::CropHandle { handle, .. }) => Some(usize::from(handle)),
+            _ => None,
+        };
+        let near = held.or_else(|| handles.iter().position(|h| h.distance(hq) < 12.0)).filter(|_| !rotating);
         let cursor = match near {
             Some(0 | 2) => egui::CursorIcon::ResizeNwSe,
             Some(1 | 3) => egui::CursorIcon::ResizeNeSw,
             Some(4 | 6) => egui::CursorIcon::ResizeVertical,
-            Some(_) => egui::CursorIcon::ResizeHorizontal,
+            Some(5 | 7) => egui::CursorIcon::ResizeHorizontal,
+            // 8: the whole box
+            Some(_) => egui::CursorIcon::Move,
             None if inside(hq) && !rotating => egui::CursorIcon::Move,
             // a drag here rotates: no system cursor shows that, so draw a curved double arrow
             None => {

crates/ui-egui/src/tests_crop_rotate.rs

@@ -283,3 +283,20 @@ fn leaving_the_angle_field_applies_the_angle() {
     assert!((angle(&h) - 4.5).abs() < 1e-9, "applied on leaving: {}", angle(&h));
     assert_eq!(h.app.session.undo.len(), undo + 1);
 }
+
+/// A move or resize drag keeps its own pointer when it runs past the box (the box stops at the
+/// photo's edge): the rotation glyph would say the drag rotates.
+#[test]
+fn moving_the_box_never_shows_rotation() {
+    let mut h = crop_tool();
+    let r = h.request(
+        "ui.pointer",
+        json!({"events": [{"kind": "down", "x": 0.5, "y": 0.5}, {"kind": "drag", "x": 0.8, "y": 0.5}, {"kind": "drag", "x": 1.2, "y": 0.5}]}),
+        T,
+    );
+    assert_eq!(r["ok"], true, "{r}");
+    h.settle(SETTLE);
+    assert_eq!(h.last_cursor, egui::CursorIcon::Move, "still moving");
+    assert!(!has(&h, "cropRotateCursor"));
+    assert_eq!(angle(&h), 0.0, "nothing rotated");
+}